A vehicle driveline disconnect device and a method of determining the status of a clutch of a driveline disconnect device includes steps to positively determine a position of the clutch. The steps may include detecting termination of an activation signal for an actuator of a clutch through which torque is selectively transmitted to one or more axles of a vehicle, determining that the clutch is in a second position and not the first position, applying a detection current to the actuator, wherein the detection current is of a lower magnitude than the current of the activation signal, and determining the position of the clutch as a function of the current in the actuator after application of the detection current.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
A shaft coupling for the switchable connection of a first shaft to a second shaft arranged coaxially thereto, comprises the first shaft, which has on a circumferential surface a plurality of first ball tracks extending along an axis of rotation over at least a first section and a second section, the first ball tracks being arranged spaced apart from one another along a circumferential direction in the first section by first webs and in the second section by second webs, as well as a plurality of first balls arranged in the first section and a plurality of second balls arranged in the second section.
An electric drive for a vehicle comprises a housing, an electric machine with a stator connected to the housing and including stator end-windings, a rotor rotatable relative to the stator, and a driveshaft connected to the rotor and rotatably supported in the housing about an axis of rotation, a transmission to transmit a rotary movement from the driveshaft to drive a driveline of the vehicle, and a hydraulic circuit for circulating a fluid.
A method for modulating torque of a vehicle propulsion motor driven by first, second and third cyclic currents mutually shifted by electrical angles of 120 degrees and applied in accordance with a rotating magnetic field by a rotor is provided with: applying pulse-width modulated voltage pulses respectively to switching devices to generate the first, second and third cyclic currents; and adding a phase shift to the first, second and third cyclic currents relative to the rotating magnetic field, or causing an amplitude modulation in the first, second and third cyclic currents.
B60L 15/02 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train characterised by the form of the current used in the control circuit
B60L 15/08 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train characterised by the form of the current used in the control circuit using pulses
H02P 21/22 - Current control, e.g. using a current control loop
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
A method for assembling a component of a drive train is provided. The component includes at least a first part with a plurality of threaded holes and a second part with a corresponding number of through holes. The threaded holes and through holes each extend along an axial direction.
An axle assembly includes a gear train having multiple outputs that rotate at different speeds. A differential is engaged with a first output at a first speed, and a clutch is engaged with a second output at a second speed, and the second speed is lower than the first speed. The first output may be radially spaced from the second output, relative to axes of rotation of the differential and the clutch.
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
A power transmission device is provided with a differential case including an outer case for receiving torque and rotating about an axis and an inner case rotatable relative to the outer case, a clutch member fixed to or engaged with the outer case and structured so that the clutch member and the inner case form a dog clutch, the clutch member transmitting the torque from the outer case to the inner case when the dog clutch is in mesh, and a differential gear set. The gear set includes side gears rotatable about the axis and capable of making a differential motion relative to each other and forming a friction clutch in combination with the differential case, and a pinion gear supported by the inner case as to transmit the torque to the side gears and meshed with the side gears to allow the differential motion.
A power transmission device is provided with a casing drivingly coupled to the power source to create a rotation about an axis, and a differential gear set supported by the casing to rotate with the casing about the axis. The differential gear set includes a pair of side gears capable of making a differential motion from each other, a friction section interposed between the casing and the differential gear set, or internal to the differential gear set, to frictionally limit the differential motion, a disconnect device coupled to one of output shafts for connectably disconnecting one of the side gears from the one of the output shafts, and a cam structure coupled directly or indirectly to the friction section to convert a torque in a direction for accelerating the rotation into a thrust force in an axial direction to exert the thrust force on the friction section.
An in-wheel motor includes a casing at least partly housed in a wheel; a hub rotatable about an axis with a neck portion disposed in the casing and having a first face spline and a flange portion radially expanding outside the casing to combine with the wheel; a stator including an electromagnet for generating a magnetic flux and fixedly supported by the casing; a rotor rotatably supported by the casing and including a shoulder portion having a second face spline to mesh with the first face spline and a disk portion integral with the shoulder portion and radially expanding from the shoulder portion toward the stator to receive the magnetic flux so as to be driven around the axis; and a bolt screwed in the shoulder portion to force the first face spline in close contact with the second face spline.
B60K 7/00 - Disposition of motor in, or adjacent to, traction wheel
B60B 27/02 - Hubs adapted to be rotatably arranged on axle
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
10.
DRIVETRAIN COMPONENT INCLUDING AN ELECTROMAGNETIC ACTUATOR WITH INTEGRATED WIRE CONNECTION
A solenoid assembly for a rotary power transmission device, includes a core having an interior cavity, a wire coil received within the interior cavity, and at least one wire via which electricity is provided to the wire coil. A connection between the at least one wire and the wire coil is located within the interior cavity.
A vehicle differential includes a housing, an input gear mounted to the housing so that the housing and input gear rotate together, a pinion shaft mounted in the housing, first and second pinion gears mounted on the pinion shaft, first and second side gears within the housing and engaged with the pinion gears, and a second gear mounted to the housing so that the second gear and the housing rotate together. Part of the second gear overlaps at least part of the pinion shaft and limits movement of the pinion shaft relative to the housing.
An output gear of the differential apparatus includes a gear member and an operating member capable of being integrally rotatably engaged with the gear member via the cam portion. The cam portion includes a gear protrusion on the gear member, an operating protrusion on the operating member, and cam surfaces respectively provided on opposing surfaces of the gear protrusion and the operating protrusion. A corner portion on a tip side of at least one of the gear protrusion and the operating protrusion is provided with a retreating portion.
A coaxial drive unit is provided with a motor coaxial with a first axis. The drive unit has a differential that is coaxial with the first axis and includes a differential gear set for differential torque transmission to paired axles, an output shaft driven by the motor to rotate about the first axis and having a through-hole that allows one of the paired axles to reach the differential from an exterior. A transmission shaft is rotatable about a second axis parallel with the first axis and in mesh with both the output shaft and the differential to transmit the torque from the motor to the differential, a clutch is disposed between the motor and the differential gear set to limit a differential motion or disconnectably connect the output shaft with the differential, and an actuator is disposed above the first axis and configured to drive the clutch.
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 17/02 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
A differential device is provided with a casing including a first wall, a second wall and a peripheral wall and defining a chamber; a differential gear set housed in the chamber and including a first side gear, a second side gear and pinion gears respectively rotatably supported by pinion shafts; a friction clutch disposed between the first side gear and the first wall to brake the first side gear against the first wall; a cam mechanism disposed outside the casing, contiguous to the second wall and configured to convert a rotational force into a thrust force in a direction of an axis; and a transmission member including plungers elongated in parallel with the axis through intervals between the pinion gears or between the pinion shafts and capable of transmitting the thrust force.
An actuator assembly comprises a housing part with a sleeve-shaped portion and a flange-shaped portion, a ball ramp mechanism with a support ring and an setting ring, wherein at least the support ring is radially spaced from an outer face of the sleeve-shaped portion; an actuating element which is held axially movably coaxially to the ball ramp mechanism on the flange-shaped portion of the housing part, an annular gap being formed between the outer face of the sleeve-shaped portion and the actuating element; and a spring element which is arranged radially outside an actuating face of the actuating element axially between the housing part and the actuating element in order to exert a restoring force on the actuating element. A differential assembly with such an actuator assembly is provided.
Cover plate of a rotor of an electric machine, wherein the cover plate has a contact surface which is intended to lie against a laminated core of the rotor; rotor of an electric machine, wherein the rotor is rotatable about an axis of rotation and has a laminated core, wherein at least one cover plate is arranged at an axial end of the laminated core; and method for mounting a rotor, wherein the cover plate and the laminated core are arranged on a rotor shaft, wherein permanent magnets are arranged in first recesses of the laminated core and wherein the recesses are filled with a plastic in order to embed the permanent magnets in the first recesses.
A differential used for distributing input torque, is provided with: a casing to receive the input torque; a differential gear set supported by the casing for differentially distribute the input torque to first and second side gears; a clutch interposed between the casing and the first side gear to limit differential motion between the first side gear and the second side gear; an actuator to exert a pressure force on the clutch to control the differential motion; and an electronic control unit configured to calculate a locking rate from a selected differential torque ratio, calculate a requesting torque from a product as a result of multiplying the input torque by the locking rate, and control an electric power to be input to the actuator on the basis of the requesting torque.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
A driving system used for torque control is provided with: first and second speed sensors on first and second shafts; first output devices drivingly coupled to the first and second shaft; and an electronic control unit electrically connected to the first and second speed sensors and the first and second output devices and including a storage unit storing one or more values of differential torque ratios, the electronic control unit being configured to fetch a target torque value, determine a rotation speed difference, determine a sign from the determined difference and the target torque value, fetch one of the values from the storage unit, calculate from the fetched value and the determined sign a first distribution ratio, and perform control to cause the first and second output devices to output torques obtained by multiplying the calculated first distribution ratios by the target torque value.
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
19.
LINK CAPACITOR DISCHARGE CIRCUIT WITH TEMPERATURE CONTROL
In at least some implementations, a discharge circuit for an electric vehicle, includes a link capacitor, a resistive load, a discharge switch coupled to the link capacitor and to the resistive load so that the link capacitor is coupled to the resistive load when the discharge switch is closed to enable discharge of the link capacitor, and a discharge interrupt assembly. The discharge interrupt assembly has a sensing resistor connected in series with the resistive load, and a temperature circuit. The temperature circuit has an input connected to the sensing resistor and an output, and the discharge interrupt circuit is responsive to a voltage at the output of the temperature circuit to open the discharge switch when the voltage from the temperature circuit is higher than a threshold.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
H02J 7/34 - Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
A high-voltage component includes a housing and a high-voltage connection arranged therein. The housing includes a cover element, which closes an opening of the housing. The high-voltage connection is accessible from the outside exclusively via the opening. The cover element is releasably connected to the housing via a plurality of connecting elements. A cable extends, from a non-detachable first connection arranged on the housing, outside the housing at least partially over the cover element to a second connection arranged on the housing in such a way that at least one first connecting element is covered by the cable and is thus not accessible from the outside.
H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
A rotor assembly for an electric excited synchronous motor (EESM) comprises: a rotor shaft, a rotor core with windings, a first and a second fluid guide element arranged at the ends of the rotor core, wherein the rotor shaft comprises an axial bore and a plurality of radial bores, wherein the rotor core includes a plurality of inlet openings fluidically connected to the radial bores, and axial channels extending axially to first and second outlet openings of the rotor core, wherein the first and second fluid guide elements are fluidically connected to the outlet openings of the rotor core and comprise a fluid structure configured to receive cooling fluid from the rotor core and guide same to escape openings arranged in circumferential direction between two circumferentially adjacent winding ends of the rotor.
A stator including a core having slots and a hairpin winding. The winding includes hairpin conductors with two legs connected at a head portion. A slot pitch between the two legs is defined by the head portion. The legs are received in the slots in two radially adjacent layers. The head portions extend from the core at an insertion end and end sections of the legs opposite the head portions extend from the core at a welding end. The winding defines three phase windings, each having at least one branch. Each branch has a phase terminal formed at one of the end sections for connecting to a phase busbar, and a neutral terminal formed at one of the end sections for connecting to a neutral busbar. The terminals are arranged at the welding end, in one of an outermost layer and an innermost layer of the radially adjacent layers.
A rotary power transmission device includes a device housing, a clutch, an actuator and a retainer. The device housing has an interior in which multiple components are received for rotation. The clutch is received within the device housing and has a clutch ring selectively engageable with one of said multiple components. The actuator has a coil and a plunger driven for movement along an axis and relative to the clutch. And the retainer has a first portion that engages the device housing and a second portion that radially overlaps the coil and limits axial movement of the coil relative to the device housing.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/40 - Constructional details characterised by features of the rotating cases
A rotary power transmission device includes a device housing having an interior in which multiple gears are received for rotation, a clutch received within the device housing and having a clutch ring selectively engageable with one of the multiple gears, and an actuator having a coil and a plunger driven for movement along an axis and relative to the clutch ring. The plunger has a first position and a second position in which the clutch ring is engaged with one of the multiple gears. The plunger includes a first body formed at least partially from a magnetically responsive material, and includes a radially outer surface, a radially inner surface and a front face that is axially variable and arranged so that a radially outer portion of the front face is axially forward of a radially inner portion of the front face.
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
A terminal rack assembly for a stator of an electric machine comprises an insulating body, a plurality of electrical conductors having connection pads arranged to be connected to hairpin winding conductors of the stator, the plurality of electrical conductors forming at least one neutral conductor and multiple phase conductors, the phase conductors having connection members arranged to be connected to a current supply of the stator; to a stator of an electric machine comprises hairpin winding conductors.
The invention relates to a method for operating a motor arrangement which comprises at least one electric motor and an electric circuit for operating the motor with a three-phase rotating current; wherein the motor has at least one stator with at least three coils and a rotor; wherein the circuit comprises at least a first potential connection and a second potential connection which can be connected to different potentials of a DC voltage source; wherein three half-bridges are arranged between the potential connections, which are each assigned to a phase of the rotating current; wherein each coil is electrically conductively connected to a respective half-bridge via a respective first connection and to the other coils via a respective second connection.
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
H02M 7/5387 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
27.
Fluid conducting assembly for a multi-plate clutch and clutch unit
A fluid guide assembly for a friction disk clutch comprises an inner disk carrier having a carrier portion, a shoulder portion, and a shaft portion. The carrier portion has a connecting structure for receiving inner disks in a rotationally fixed and axially movable manner; and a fluid guide element which is fixedly connected to the inner disk carrier and which comprises an annular catching portion in which inflowing fluid can be caught, and a plurality of circumferentially distributed tab portions which extend in the axial direction and which each have a radial through-opening. The inner disk carrier has, directed radially outwardly, a plurality of longitudinal grooves which extend axially from the shoulder portion into the carrier portion and which are covered by tab portions of the fluid guide element.
A differential gear for transmitting a torque to an axle of a motor vehicle including a differential basket, a bevel gear, first and second output shafts, and a multi-plate clutch. The bevel gear includes inner and outer circumferential surfaces. The bevel gear is supported by a contact surface of the differential basket with respect to a radial direction. The output shafts have a common rotary axis, the first output shaft forming a positive connection with the bevel gear with respect to a circumferential direction via a outer circumferential surface of the first output shaft and the inner circumferential surface of the bevel gear. The multi-plate clutch provides for selectively connecting the first output shaft with the differential basket and includes an inner plate carried by a section of the outer circumferential surface of the bevel gear and an outer plate carried by the differential basket.
An electric drive arrangement for a vehicle includes a housing, an electric machine, a transmission, and a hydraulic circuit for circulating a fluid to cool and lubricate the electric machine and the transmission.
An electric drive for a vehicle comprises: an electric machine, a stator connected to a housing and comprising stator end-windings, a rotor rotatable relative to the stator, and a driveshaft connected to the rotor; a transmission to transmit a rotary movement from the driveshaft to a driveline; a sump containing fluid to cool and/or lubricate the electric machine and the transmission; a hydraulic arrangement comprising at least one bi-directional pump, a first suction line hydraulically connected with the pump, a stator path for cooling the stator, a second suction line connected with the pump, and a transmission path for cooling the transmission; a valve arrangement with multiple valves configured such that fluid is either supplied from the sump through the first suction line to the stator path, or through the second suction line to the transmission path.
F16H 57/04 - Features relating to lubrication or cooling
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
A powertrain of a vehicle can be operated. The powertrain can have at least one transmission housing, a clutch assembly which is arranged therein and which comprises a clutch that operates in a positively locking manner, and an actuation unit for actuating the clutch. The clutch comprises at least one first clutch component, which can be moved along an axial direction, and a second clutch component, said clutch components being connected together in a form-fitting manner upon actuating the clutch; wherein the actuation unit comprises an electromagnetic actuator with a piston, and the piston is moved from a starting position into an end position along the axial direction upon actuating the clutch, thereby moving the first clutch component.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
An electric drive arrangement for a vehicle includes a housing. The electric drive arrangement includes an electric machine with a stator connected to the housing and a rotor with a rotor shaft rotatably supported in the housing. The electric drive arrangement includes a transmission to transmit a rotary movement from the rotor shaft to drive a driveline of the vehicle. The electric drive arrangement includes a hydraulic circuit for circulating a fluid to cool and lubricate the electric machine and the transmission.
The invention relates to an electric machine (1) comprising: a housing (2), a stator (3) with a stator core (5) and a winding (6), and a rotor (4) rotatably supported about an axis of rotation (A), with a rotor shaft (7), a rotor core (8), and a first end ring (9) and a second end ring (12) at the axial ends of the rotor core (8), wherein the rotor shaft (7) comprises an axial bore (14) and first and second radial bores (15, 16) arranged axially offset from each other, wherein a supply element (19) supplies cooling fluid to the first and second radial bores (15, 16), wherein the rotor core (8) includes a plurality of axial passages (27, 27') extending between the axial ends of the rotor core, wherein the first end ring (9) comprises first channels (28) to connect the first radial bores (15) of the rotor shaft (7) with first axial passages (27) of the rotor core (8), and the second end ring (12) comprises second channels (29) to connect the second radial bores (16) of the rotor shaft (7) with a second axial passages (27') of the rotor core (8).
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
34.
ROTOR FOR AN ELECTRIC MACHINE AND METHOD OF MANUFACTURING A ROTOR FOR AN ELECTRIC MACHINE
Rotor for an electric machine with a core rotatable about a rotational axis, the core having axially extending pockets, a plurality of magnets received in the pockets and at least one impeller arranged around a circumference of the rotational axis; and method of manufacturing a rotor for an electric machine.
An electric drive assembly comprises a housing, an electric machine with a stator and a rotor, the stator having a stator core and winding heads, the rotor being connected to a rotor shaft, which is rotatably mounted in the housing about an axis of rotation, a transmission rotationally drivable by the rotor shaft, at least one fluid distribution element for supplying coolant to one of the winding heads, wherein the fluid distribution element at least partially covers an upper part of the winding head in the circumferential direction and in the axial direction and has a guide structure with a gradient in the circumferential direction, so that coolant supplied to the fluid distribution element from above is distributed in the circumferential direction and runs onto the winding head in several angular positions over a circumferential area of at least 30° with respect to the axis of rotation.
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
The application refers to a rotor for an electric machine comprising a core rotatable about a rotational axis and a plurality of magnets received in the core, the core comprising, circumferentially distributed around the rotational axis with decreasing radial distance, an outer portion, first pockets, an intermediate portion, second pockets and a hub portion. The rotor for an electric machine further comprises a plurality of magnets received in pairs in the first pockets and in the second pockets, wherein central pocket regions of the first pockets and the second pockets extend between the magnets and a non-magnetic bonding material is disposed in the central pocket regions.
Electric machine (1) comprising: a drive shaft (11) rotatable about an axis of rotation (L), said drive shaft (11) having an axial bore (14), a rotor (4) being non-rotatably secured to the drive shaft (11), said rotor (4) having a rotor core (5) and at least one rotor ring (6, 7) axially supported against an end of the rotor core (5), and at least one cooling channel (12) for conveying coolant, at least partially, in the at least one rotor ring (6, 7), wherein said at least one cooling channel (12) extends from an inlet opening (13), which is fluidly connected to the axial bore (14) of the drive shaft (11), to a radial outward outlet opening (15), characterised in that the at least one cooling channel (12) extends at least partially along a path that deviates from a straight radial direction.
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
A differential is provided with: a torque receiving casing; a differential gear set having first and second side gears to differentially distribute torque to the first and second side gears; a clutch interposed between the casing and the first side gear and configured to exert a frictional braking force on the first side gear against the casing to limit a differential motion between the first side gear and the second side gear; an actuator configured to apply a pressing force to the clutch to control the differential motion; and an electronic control unit configured to calculate a demand torque value from the input torque, compare the wheel load with a threshold value to determine a correction value, make a correction in the demand torque value by the correction value to obtain a demand value, and control an electric power supplied to the actuator in response to the demand value.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
A clutch assembly comprises at least one controllable friction clutch for variable torque transmission between a clutch input part and a clutch output part; a hydraulic actuator assembly for actuating the friction clutch, the actuator assembly comprising a hydraulic pump, a hydraulic chamber in which hydraulic pressure for the friction clutch is built up by the hydraulic pump and a return flow element with an orifice, via which hydraulic fluid can flow out of the hydraulic chamber into a housing reservoir when the hydraulic pump is not actuated, wherein the hydraulic fluid defines a filling level in the housing reservoir; wherein an outlet opening of the return flow element lies below the filling level of the hydraulic fluid in a inactive state.
A rotor for an electric machine comprising a rotational axis, a rotor core including a central rotor main body and at least two rotor segments, which are circumferentially distributed around the rotor main body, a plurality of permanent magnets being arranged between the rotor main body and the rotor segments, an electric machine.
A driveline component with a selective connection assembly includes a first rotary component having splines, a second rotary component having splines, a coupling body arranged to be mated with the first rotary component splines and the second rotary component splines, an actuator, a drive cam and a follower cam. The drive cam is rotated about an axis by the actuator, has first and second drive surfaces both at a non-zero angle to the axis. The follower cam has first and second driven surfaces, and moves axially to move the coupling body. Rotation of the drive cam in a first direction engages the first drive and driven surfaces which moves the follower cam and coupling body in a first axial direction. Rotation of the drive cam in a second direction engages the second drive and driven surfaces which moves the follower cam and coupling body in a second axial direction.
B60K 17/35 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds including arrangements for suppressing or influencing the power transfer, e.g. viscous clutches
B60K 17/344 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
This power transmission device comprises a differential case, a clutch member, and a differential gear set. The differential case includes an outer case that receives a torque and rotates about an axis, and an inner case coaxial with the outer case and capable of relatively rotating about the outer case. The clutch member is fixed or engaged to the outer case, includes the inner case and a dog clutch, and transmits the torque to the inner case from the outer case when meshed with the inner case. The differential gear set includes a pair of side gears and a pinion gear. The pair of side gears are respectively rotatable about the axis, capable of moving differentially with respect to each other, and respectively include a friction clutch that, combined with the differential case, restricts the differential movement. The pinion gear is supported by the inner case so as to be capable of transmitting the torque to the side gears, and is meshed with the side gears so as to permit the differential movement.
In the present invention, a transmission device, which outputs the output of a power source to a pair of output axles while allowing differential operation, comprises: a casing which causes rotation about the axles by connecting to the power source in a drivable manner; a differential gear set which comprises a pair of side gears capable of operating differentially from each other and supported by the casing so as to rotate about the axles; a friction part which is interposed between the casing and the differential gear set or disposed inside the differential gear set so as to frictionally restrict the differential operation; a disconnect device which is connected to one of the output axles and disconnects one of the side gears from the one of the output axles in a connectable manner; and a cam structure which is directly or indirectly connected to the friction part in such a manner that a torque in an acceleration direction of the rotation is converted into an axial thrust force and applied to the friction part.
The invention relates to an electric machine (1) comprising: a housing (2) having a reception space (3) and a stator laminated core (4) that is received in the reception space (3) and is supported axially against a bearing surface (6) of the housing (2) in the direction of a longitudinal axis (L) of the housing (2), characterized by a cover (7) that is connected to the housing (2) and closes off the reception space (3), and an elastic bracing element (8) which is arranged on a side of the stator laminated core (4) remote from the bearing surface (6) and by way of which the stator laminated core (4) is axially braced against the bearing surface (6) of the housing (2).
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 5/15 - Mounting arrangements for bearing-shields or end plates
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
The invention relates to a busbar arrangement (1) for connecting a first component (2) and a second component (3), the busbar arrangement at least having a plurality of electrical conductors (4) for the electrical transfer of a multiphase current between the first component (2) and the second component (3), a measuring unit (5) for measuring an amperage transferred via each conductor (4), and a connecting housing (6) for connecting the first component (2) to the second component (3), wherein the conductors (4) extend through the connecting housing (6), and at least one sensor (7) of the measuring unit (5) is arranged inside the connecting housing (6).
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 11/33 - Drive circuits, e.g. power electronics
H02K 11/27 - Devices for sensing current, or actuated thereby
H02K 11/35 - Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
H02K 11/02 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
H02M 7/00 - Conversion of AC power input into DC power outputConversion of DC power input into AC power output
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
46.
DRIVE MODULE OF A MOTOR VEHICLE AND METHOD FOR ACTIVATING A BRAKE AND A CLUTCH OF A DRIVE MODULE
The invention relates to a drive module (1) of a motor vehicle (2), at least comprising a drive unit (3) with a drive shaft (4), and an axle (5) of the motor vehicle (2) with a first output shaft (6) and a second output shaft (7) which output shafts can be connected in a torque-transmitting manner to the drive shaft (4) via at least one clutch (8, 9) or can each be connected via a clutch (8, 9) in a torque-transmitting manner; wherein the first output shaft (6) can be braked via a first brake (10) and the second output shaft (7) can be braked via a second brake (11 ); wherein at least one of the brakes (10, 11) and the at least one clutch (8, 9) can be activated by a common activation unit (12, 13).
The invention relates to an electric drive for driving a motor vehicle, comprising: an electric machine, a transmission and a housing in which a lubricant is contained and which has an intermediate wall which delimits a transmission space, in which the transmission is arranged, and a motor space, in which the electric machine is arranged; wherein the intermediate wall has a first through-hole that produces a fluidic connection between the motor space and the transmission space; and wherein a valve is provided having a closing element that can be transferred into a blocking position, in which the fluidic connection between the motor space and the transmission space is blocked, and into a release position, in which the fluidic connection between the motor space and the transmission space is released, wherein the first through-hole comprises a guide portion in which the closing element is guided and which extends at an angle to a horizontal in a nominal installation position of the electric drive.
An electric motor comprises: a motor housing, a stator connected to the motor housing, wherein the stator comprises first stator end-windings and second stator end-windings, a rotor rotatable relative to the stator, a driveshaft connected to the rotor in a rotationally fixed manner, wherein the driveshaft is rotatably supported in the motor housing about an axis of rotation, wherein an axial cooling arrangement is arranged axially adjacent and radially overlapping one of the first and second stator end-windings, wherein the axial cooling arrangement comprises a fluid chamber with a plurality of nozzles distributed in circumferential direction and directed towards said one of the first and second stator end-windings.
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
49.
HOUSING ASSEMBLY FOR AN ELECTRIC MACHINE FOR DRIVING A MOTOR VEHICLE, AND ELECTRIC MACHINE WITH SUCH A HOUSING ASSEMBLY
The invention relates to a housing assembly for an electric machine for driving a motor vehicle, comprising: an inner housing part (3) for receiving a stator (43) of the electric machine, with a base portion (6) and an inner jacket portion (7) integrally formed of a metal material containing aluminum, wherein the inner jacket portion (7) comprises on an outer circumferential face a channel structure (12) for a cooling fluid; a side part (4) made of a metal material containing aluminum and being connected to an end of the inner housing part (3) opposite the base portion (6); an outer housing part (5) with a base portion (9) and an outer jacket portion (10) which are integrally formed of a plastic material; wherein the outer housing part (5) is mounted on the inner housing part (3) such that the outer jacket portion (10) covers the inner jacket portion (7), with the channel structure (12) being closed to form a circumferential cooling fluid channel (11). The invention further relates to an electric machine (42) with such a housing assembly.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
The invention relates to a housing assembly for an electric drive, comprising: a motor housing part (3) with an jacket portion (6) and a first gear case portion (7) integrally formed therewith, casing (4) mountable to the jacket portion (6), an inverter housing part (5) with an inverter case portion (13) and a second gear case portion (14) integrally formed therewith, wherein the inverter case portion (13) is arranged axially adjacent to the second gear case portion (14), wherein the second gear case portion (14) includes a gearbox cooling channel (22) that is fluid-connected to a cooling chamber (17) of the inverter housing part (5), wherein the motor housing part (3) and the inverter housing part (5) are connectable with each other by connecting elements, and wherein, in the mounted condition, a closed cooling circuit is formed from a fluid connector (16) of the inverter housing part (5) via the cooling chamber (17) and the gearbox cooling channel (22) to a motor cooling channel (8) of the motor housing part (3).
The invention relates to a clutch assembly (1), at least comprising a clutch (2) with a first clutch disc (3) and a second clutch disc (4), which are selectably shiftable between an engaged first position and a disengaged second position, for selectively transmitting a torque in a circumferential direction (5, 6), and also comprising an actuating device (7) for actuating the clutch (2), wherein the actuating device (7) has at least one input disc (9), which is drivable via a motor (8) in a first circumferential direction (5) and in a second circumferential direction (6) opposed to the first circumferential direction (5), and an output disc (12), which is rotatable by the input disc (9) in the circumferential directions (5, 6) and is shiftable in an axial direction (10, 11).
An actuator and clutch assembly for a power transmission device includes a first and second clutch members arranged to selectively define a connected state of the clutch when the second clutch member is drivingly engaged with the first clutch member and a disconnected state of the clutch when the second clutch member is not drivingly engaged with the first clutch member. An electric motor drives an input member driven for rotation about an axis, and an output member is driven axially relative to the input member when the input member rotates, wherein the second clutch member moves axially with the output member. A spring provides a force on the output member that biases the output member in a direction in which the second clutch member is moved toward the first clutch member. The spring is radially and axially overlapped by the input member and the output member.
A rotary power transmission device, includes a housing, a pinion gear shaft received within the housing and having an axis, a pinion gear rotatable relative to the pinion gear shaft, and first and second clutch members. The first clutch member has a rotational axis, radial inner and outer surfaces, front and rear faces, and multiple teeth at the front face. The second clutch member is coaxially arranged with the first clutch member, and has radial inner and outer surfaces, front and rear faces, and multiple teeth. The pinion gear has an interface surface extending radially from the opening and the radial inner surface of the first clutch member is located axially outwardly of the interface surface and the radial inner surface of the first clutch member fully overlaps the interface surface.
F16D 11/10 - Clutches in which the members have interengaging parts actuated by moving a non-rotating part axially with clutching members movable only axially
Rotor assembly for an electric machine comprising a rotor and a shaft with a thrust portion forming an abutment for the rotor, wherein the rotor is preloaded against the thrust portion.
Electric machine, comprising a hollow driveshaft for supporting a rotor rotatable relative to a stator, the driveshaft and being rotatably supported in a housing about an axis of rotation, and a hydraulic system for circulating a fluid, having a supply line leading to an axial bore of the driveshaft.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
B60K 11/02 - Arrangement in connection with cooling of propulsion units with liquid cooling
56.
ELECTRIC MACHINE STATOR WITH INNER COOLING CHANNELS
An electric machine stator has an axis and comprises a stator core having a back iron portion, a plurality of teeth and a plurality of slots, the teeth extending radially inwards from the back iron portion with regard to the axis, alternating with the slots. A plurality of inner cooling channels extend through the stator core in parallel to the axis.
H02K 1/20 - Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 3/24 - Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
An actuator for externally manipulating a clutch within a machine rotatable about an axis is provided with a driving unit including a plurality of magnetic coils arranged around the axis, each of the coils being arranged to generate a magnetic flux in a direction parallel to the axis; an armature disposed coaxially with the axis and opposed axially to the driving unit, the armature being movable axially; and a plunger coupled with the armature to transmit axial motion to the clutch.
F16D 27/02 - Magnetically-actuated clutchesControl or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
A differential device for outputting torque around an axis is provided, comprising: a casing comprising a first wall extending in a radial direction at a first end with respect to the axis, a second wall extending in the radial direction at a second end with respect to the axis, and a peripheral wall communicating the first wall and the second wall, the first wall, the second wall, and the peripheral wall defining a chamber; a differential gear set that comprises a first side gear housed in the chamber and facing the first wall, a second side gear facing the second wall, a plurality of pinion shafts extending in the radial direction, and a plurality of pinion gears that are rotatably supported by the pinion shafts, respectively, and are meshed with the first side gear and the second side gear, the differential gear set differentially distributing the torque received by the pinion shafts to the first side gear and the second side gear; a friction clutch that is disposed between the first side gear and the first wall, and brakes the first side gear with respect to the first wall; a cam mechanism that is disposed outside the casing adjacent to the second wall and coaxially with the axis, and that converts a rotating force around the axis into a thrust force in the direction of the axis; and a transmission member that includes a plurality of plungers each extending between the plurality of pinion gears or the plurality of pinion shafts in parallel to the axis, and being capable of transmitting the thrust force, the transmission member contacting the friction clutch to apply the thrust force thereto.
The invention relates to a drive arrangement for a motor vehicle, said drive arrangement comprising: a gearbox (3); a friction clutch (5); a housing (10) having a reservoir (14) in which lubricant can be stored during operation; a valve (19) having an actuating element (20) for controlling a lubricant flow from the reservoir (14) to the clutch housing chamber (15), wherein the actuating element (20) can be moved by means of an actuating contour (11); an actuator (8) having a ramp mechanism (43) with a rotatably drivable adjusting ring (45) and a rotationally fixed support ring (44), the adjusting ring and support ring having a ramp structure, wherein the adjusting ring (45) is connected to the actuating contour (11), wherein, by rotating the adjusting ring (45) from an initial rotational angle (β0) to an intermediate rotational angle (β1), the valve (19) is fully opened and the friction clutch (5) is transferred to a partially closed position (P1), and, by rotating in a second rotational range (b2) beyond the intermediate rotational angle (β1), a transmittable clutch torque can be variably adjusted and the valve (19) remains open.
This coaxial drive device which drives a pair of axles rotatable about a first axis comprises: a motor that is coaxial with the first axis; a differential that is coaxial with the first axis, that is rotatable about the first axis, and that is provided with a differential gear set which differentially outputs a received torque to the pair of axles; an output shaft that penetrates through the motor, that is driven by the motor to rotate about the first axis, and that has a through hole sized to allow one of the pair of axles to reach the differential from the outside; a transmission shaft that is rotatable about a second axis parallel to the first axis and that meshes with both the output shaft and the differential to transmit the torque from the motor to the differential; a clutch that is disposed between the motor and the differential gear set and that restricts the differential of the differential gear set, or a clutch that is disposed above the transmission shaft and couples, in a decouplable manner, the output shaft and the differential with each other; and an actuator that is disposed above the first axis and that drives the clutch.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
H02K 7/10 - Structural association with clutches, brakes, gears, pulleys or mechanical starters
A drive arrangement comprising an electric motor can be operated. The drive arrangement comprises the electric motor, an electrical circuit for operating the electric motor, and a control device for actuating the electrical circuit; wherein the electric motor has at least one stator comprising at least three coils and a rotor comprising at least two magnetic poles; wherein the electrical circuit has at least a first potential connection and a second potential connection, which can be connected to different potentials of a DC voltage source; wherein the electrical circuit comprises three half-bridges between the potential connections, wherein each coil is electrically conductively connected to each half-bridge via a respective first connection and to the other coils via a respective second connection.
H02P 27/04 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
H02P 21/22 - Current control, e.g. using a current control loop
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
Electric machine comprising a stator, a rotor rotatable relative to the stator about an axis, the rotor having permanent magnets, at least one short circuit ring axially shiftable over a distance D between a first position and a second position, wherein the short circuit ring is more distant from the rotor in the first position than in the second position, and wherein an induced magnetic flux of the permanent magnets is reduced when the at least one short circuit ring is shifted towards the second position, and at least one actuator assembly actuating the at least one short circuit ring to shift from the first position to the second position.
H02K 1/276 - Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
H02K 21/02 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets Details
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
A system for controlling a clutch is provided with: an action member rotatable about an axis; a motor drivingly connected to the action member to impart a rotational motion about the axis to the action member; a conversion mechanism drivingly connected to the action member to convert the rotational motion about the axis into an axial motion; a clutch member constituting the clutch and drivingly connected to the conversion mechanism so as to be driven by the axial motion, the clutch member being movable axially bidirectionally from a first position where the clutch is disconnected, through a second position, to a third position where the clutch is connected; and a controller configured to measure and compare a rotational angle of the motor with a reference value to determine at which of the first position, the second position, and the third position the clutch member is.
A power transmission device includes a clutch, an actuator and a stop member. The clutch is received within a first housing and has a first clutch member coupled to the second housing and a second clutch member coupled to the first housing, the second clutch member is movable and selectively engageable with the first clutch member. The actuator has a coil and a plunger driven for movement by a magnetic field generated by the coil so that the plunger moves axially to move the second clutch member relative to the first clutch member. The stop member has a retracted position spaced from the plunger and an advanced position within a path of movement of the plunger to limit movement of the plunger when the stop member is in the advanced position.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 57/037 - Gearboxes for accommodating differential gearing
The invention relates to a conductor (2) for an electric machine, comprising: a first winding element (3) made of an electrically conductive material and having a channel (7) through which a coolant can flow, wherein the first winding element (3) is integrally formed with a first straight portion (8), a reverse portion (10) and a second straight portion (9) parallel to the first straight portion (8), wherein the first straight portion (8) has a first end section (12) and the second straight portion (9) has a second end sec-tion (13); a hollow connecting member (6) made of electrically conductive material; wherein the hollow connecting member (6) and the first end section (12) of the winding element (3) are axially insertable into each other to form an axially overlapping electrical and fluidic connection. The invention further relates to an electric machine (25) with such a conductor (2).
A differential used to distribute input torque comprises: a casing that receives input torque; a differential gear set that is housed in and supported by the casing, that comprises first and second side gears, and that differentially distributes the input torque to the first and second side gears; a clutch that is interposed between the casing and the first side gear, that frictionally brakes the first side gear against the casing, and that thereby limits a differential between the first side gear and the second side gear; an actuator that exerts a pressing force on the clutch to control the differential; and an electronic control device electrically connected to the actuator, the electronic control device being configured to calculate a lock rate from a selected differential torque ratio, calculate a required torque from a product obtained by multiplying the input torque by the lock rate, and control electric power supplied to the actuator in accordance with the required torque.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
This driving system controls torques to be outputted to a first shaft and a second shaft and is provided with an electronic control apparatus which comprises: a first speed sensor configured to measure the rotation speed of the first shaft; a second speed sensor configured to measure the rotation speed of the second shaft; a first output device drivingly coupled to the first shaft; a second output device drivingly coupled to the second shaft; and a storage device that is electrically connected to the first and second speed sensors and to the first and second output devices and that stores at least one bias ratio value. The electronic control apparatus is configured to: acquire a target torque value; determine the difference in rotation speed of the first shaft with respect to the second shaft; determine a sign on the basis of the determined difference in rotation speed and the target torque value; read one value from the storage device; calculate a first distribution ratio to be distributed to the first shaft and a second distribution ratio to be distributed to the second shaft on the basis of the read value and the determined sign; and control the first output device and the second output device so as to output torques obtained by multiplying the calculated first and second distribution ratios by the target torque value.
F16H 48/30 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
B60K 17/348 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds
B60W 10/04 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
A drive system for use in a vehicle comprising one or more power sources, said system comprising: an output device drivably coupled to the power source and provided with a first shaft, a second shaft, and a clutch that controls the torque distribution factor; and an electronic control device that is electrically connected to the output device and is provided with a storage device that stores one or more differential torque ratio values, the electronic control device being configured to acquire a target torque value, read one value from the storage device, calculate a virtual lock factor from the target torque value and the read value, calculate a required torque value from the virtual lock factor, and adjust a pressing force against the clutch in accordance with the required torque value, thereby adjusting the distribution factor.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B60K 17/348 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having differential means for driving one set of wheels, e.g. the front, at one speed and the other set, e.g. the rear, at a different speeds
The invention relates to a high-voltage component (1), at least comprising a housing (2) and a high-voltage terminal (3) arranged therein, wherein: the housing (2) comprises a cover element (4) that closes an opening (5) in the housing (2); the high-voltage terminal (3) is accessible from the outside exclusively via the opening (5); the cover element (4) is detachably connected to the housing (2) via a number of connecting elements (6, 7); and a cable (8) extends, starting from a non-detachable first connection (9) arranged on the housing (2), outside the housing (2) and at least in part over the cover element (4) to a second connection (10) arranged on the housing (2) in such a way that at least a first connecting element (6) is covered by the cable (8) and thus not accessible from the outside.
A system for using a motor to control a power transmission device for driving a vehicle is provided with a clutch member movable bidirectionally in an axial direction; a base member prevented from rotating about an axis; a counter member axially away from and opposed to the base member, the counter member being restrained from moving in both a circumferential direction and the axial direction; an action member interposed between the base member and the counter member, movable in the axial direction, drivingly coupled with the clutch member, and coupled with the motor to create a rotational motion about the axis; and a cam slope tilting in the circumferential direction and ascending from the base member toward the counter member to convert the rotational motion into a motion of the action member in the axial direction.
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
A differential device includes a differential case, a first output gear and a second output gear, and an interrupting mechanism. The differential case is rotatable. A drive force can be input to the differential case. The first output gear and the second output gear are accommodated in the differential case. The first output gear and a second output are rotatable with respect to the differential case and output the drive force received from the differential case. The interrupting mechanism is disposed on a side of the first output gear and connects and disconnects power transmission between the differential case and the first output gear. The first output gear is coupled to an output shaft through an intermediate member.
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
A system for controlling a clutch is provided with: a thrust member movable between a first position for disconnecting the clutch and a second position for connecting the clutch; a solenoid generating a magnetic flux in response to input of electric power; a movable element drivingly coupled with the thrust member and set into motion by the magnetic flux to drive the thrust member between the first position and the second position; an electric circuit configured to add alternating-current power to the electric power and apply the electric power with the alternating-current power to the solenoid; and a controller configured to detect a phase difference of an electric current relative to an electric voltage in the alternating-current power added to the electric power and compare the detected phase difference with a reference value to determine whether the thrust member is at the first position or at the second position.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
F16D 27/06 - Magnetically-actuated clutchesControl or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings with axially-movable friction surfaces with friction surfaces arranged within the flux
F16D 27/14 - Magnetically-actuated clutchesControl or electric circuits therefor Details
73.
Rotary power transmission device with actuator retention feature
A rotary power transmission device includes a housing, a clutch, an actuator and a retaining body. The housing has an annular surface and an interior in which multiple components are received for rotation. The clutch is received within the housing and has a clutch ring selectively engageable with one of said multiple components. The actuator has a limit surface, a coil and a plunger driven for movement along an axis and relative to the clutch, and the plunger is received over and movable along the annular surface. The retaining body has a blocking surface radially overlapped with the limit surface and arranged to be contacted by the limit surface to prevent removal of the plunger from the annular surface.
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
B60K 17/346 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
74.
Rotary power transmission device with actuator retention feature
A rotary power transmission device includes a device housing, a clutch, an actuator and a retainer. The device housing has an interior in which multiple components are received for rotation. The clutch is received within the device housing and has a clutch ring selectively engageable with one of said multiple components. The actuator has a coil and a plunger driven for movement along an axis and relative to the clutch. And the retainer has a first portion that engages the device housing and a second portion that radially overlaps the coil and limits axial movement of the coil relative to the device housing.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/40 - Constructional details characterised by features of the rotating cases
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
A power transmission device is provided with: a rotary body arranged to receive the torque to rotate about an axis; a clutch including a clutch member engaging with the rotary body and axially movable and clutch teeth connectable with the clutch member to transmit the torque; a solenoid configured to generate a magnetic flux in response to input of electric power; a stator coupled with the solenoid as to conduct the magnetic flux and prevented from rotation about the axis; a rotor arranged to receive the magnetic flux from the stator and, when driven by the received magnetic flux, to create a rotational motion about the axis; and a conversion mechanism drivingly connected with the rotor to convert the rotational motion into a linear motion in a direction along the axis, the conversion mechanism including a thrust member transmitting the linear motion to the clutch member.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
A driveline component includes a housing, a first rotating component and a second rotating component, an actuator and a biasing component. The actuator has a body coupled to the first rotating component, the actuator drives the body relative to the second rotating component, and the body is movable between a first position in which the body is not coupled with the second rotating component and a second position in which the body is coupled with the second rotating component. The biasing component has a retainer and a spring, the retainer is in contact with a stop surface that limits movement of the retainer, the spring is fixed to the retainer on one side of the spring and the spring is contacted by the body during at least a portion of the movement of the body to provide a biasing force on the body.
This invention provides a clutch device used in a differential gear set that differentially distributes torque to a pair of side gears from a case that is supported on a carrier via bearings and that rotates around an axis. Said clutch device comprises: a clutch member that engages the case in order to rotate together with the case, and that can move in an axial direction between an uncoupled position of being uncoupled from the differential gear set and a coupled position of coupling in a driving manner any gear of the differential gear set to the case; an actuator, which includes an electromagnetic coil that produces a magnetic flux, a core surrounding the electromagnetic coil in order to guide the magnetic flux, and a plunger fitted in contact with the core so as to be able to slide in the axial direction in order to receive the magnetic flux and generate thrust in the axial direction, the core slidably contacting the case and protruding axially outward from an axially inner end of the bearing, and the plunger being positioned between the bearing and the clutch member and coming into contact with the clutch member to transmit the thrust to the clutch member; and a rotation-stopping member fixed to the core and extended toward the carrier in order to engage the carrier and stop the core from rotating.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
In at least some implementations, a clutch member includes a main body having a central axis, a radially inner surface, a radially outer surface, a rear face and a front face, multiple teeth formed in the front face with adjacent teeth circumferentially spaced apart, and a rim extending axially from the main body and located radially outwardly of the teeth. The rim extends axially farther from the rear face than do the teeth.
F16D 27/118 - Magnetically-actuated clutchesControl or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with interengaging jaws or gear teeth
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
A differential device is provided with: an input case having an axially directed end face; a differential gear set with side gears allowing a differential motion therebetween; dog teeth toothed toward the end face on an output case; a clutch structure engageable with the dog teeth and so structured as to couple the output case or the second side gear with the input case when engaged; an axially movable clutch member including an internal end and an external end exposed to the exterior; an axially movable armature including a magnetic material and in contact with the external end; a solenoid supported away from the end face, the solenoid generating a magnetic flux to attract the armature and, via the clutch member, set the clutch structure in mesh with the dog teeth; and a spring biasing the clutch member in a contrary direction.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
A safe parking system is provided with: a torque-generating motor; a final drive including side gears drivingly coupled with the motor, a differential gear with a lock to prevent a differential motion between the side gears and an actuator for releasing the lock; an ignition key having an ON position and an OFF position; a differential-lock switch having an open position and a closed position; a switching unit for selecting whether the actuator is turned on or off; and a controller configured to, when the ignition key is detected to be in the OFF position, turn off the actuator if the differential-lock switch is in the open position, and execute no operation about the actuator if the differential-lock switch is in the closed position.
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
F16H 48/20 - Arrangements for suppressing or influencing the differential action, e.g. locking devices
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
The invention relates to a shaft coupling (1) for selectably connecting a first shaft (2) to a second shaft (3) which is coaxial with the first shaft, at least comprising: - the first shaft (2), which has, on a peripheral surface (4), a plurality of first ball tracks (8), which extend along an axis of rotation (5) over at least a first portion (6) and a second portion (7) and which are mutually spaced apart in a peripheral direction (9), in the first portion (6) by means of first dividers (10) and in the second portion (7) by means of second dividers (11); - a plurality of first balls (12) disposed in the first portion (6); and - a plurality of second balls (13) disposed in the second portion (7).
F16D 1/04 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with hub and longitudinal key
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
A differential with a clutch is provided with: a differential gear set; a dividable casing defining a chamber accommodating the clutch and the differential gear set; a first member of the casing formed in a unitary body and including an end wall having a window penetrating the end wall, a boss portion projecting axially outward from the end wall, a side wall around the axis and a flange extending radially outward for receiving the torque; a second member of the casing fixed with the side wall to close the chamber; an axially movable clutch member axially movable including a leg portion disposed in the window and transmitting the torque from the end wall to the differential gear set; and an actuator having an axially outward offset from the flange and including a plunger abutting on the leg portion and driven axially by the actuator to thrust the clutch member.
F16H 48/24 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using positive clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/40 - Constructional details characterised by features of the rotating cases
A differential device is provided with: a casing rotatable about an axis; a differential gear set including a pair of side gears housed in the casing and rotatable about the axis, a pinion shaft penetrating perpendicular to the axis and being secured to the casing; and pinion gears rotatably supported by the pinion shaft and so meshed with the side gears as to enable differential motion between the side gears; friction clutches interposed between the side gears and an inner periphery of the casing to limit the differential motion; a pair of repulsive bodies respectively applying force in directions along the axis to the friction clutches; and a block in contact with and supporting in the directions along the axis both the repulsive bodies, the block so fitting on the pinion shaft as to impose reaction forces from the friction clutches on the pinion shaft.
Electric drive arrangement for a vehicle, comprising a housing, an electric machine with a stator connected to the housing and a rotor with a rotor shaft rotatably supported in the housing, a transmission to transmit a rotary movement from the rotor shaft to drive a driveline of the vehicle, a hydraulic circuit for circulating a fluid to cool and lubricate the electric machine and the transmission.
Electric drive for a vehicle, comprising a housing, an electric machine with a stator connected to the housing and including stator end-windings, a rotor rotatable relative to the stator, and a driveshaft connected to the rotor and rotatably supported in the housing about an axis of rotation, a transmission to transmit a rotary movement from the driveshaft to drive a driveline of the vehicle, and a hydraulic circuit for circulating a fluid.
Electric drive arrangement for a vehicle with a housing, an electric machine, a transmission and a hydraulic circuit for circulating a fluid to cool and lubricate the electric machine and the transmission.
The invention relates to an electric drive for a vehicle, comprising: an electric machine (4), a stator (7) connected to a housing (3) and comprising stator end-windings (8, 8'), a rotor (9) rotatable relative to the stator (7), and a driveshaft (10) connected to the rotor (9); a transmission (5) to transmit a rotary movement from the driveshaft (10) to a driveline; a sump (6) containing fluid to cool and/or lubricate the electric machine (4) and the transmission (5); a hydraulic arrangement (12) comprising at least one bi-directional pump (13, 14), a first suction line (24, 24') hydraulically connected with the pump (13, 14), a stator path (17) for cooling the stator (7), a second suction line (25, 25') connected with the pump (13, 14), and a transmission path (18) for cooling the transmission (5); a valve arrangement (16) with multiple valves (20, 21, 22, 23; 20', 21', 22', 23') configured such that fluid is either supplied from the sump (6) through the first suction line (24, 24') to the stator path (17), or through the second suction line (25, 25') to the transmission path (18).
Electric drive for a motor vehicle, comprising a housing assembly with an inner casing portion and an outer casing portion forming a casing cooling structure through which a water based coolant is made to flow; an electric machine with a stator connected to the inner casing portion of the housing assembly and a rotor with a rotor shaft rotatably supported in the housing assembly; a transmission to transmit a rotary movement from the rotor shaft to drive a driveline of the motor vehicle; and an oil sump with an oil provided to cool and lubricate the rotor and transmission.
Controlling an actual slip of at least one driven axle of a motor vehicle with at least one axle having at least one wheel and a one drive unit for providing a drive torque for the axle and for the wheel can be carried out by a control device for controlling the drive unit. The control device can be configured for establishing a first actual speed of the motor vehicle; establishing a second actual speed of the at least one wheel; calculating a target speed of the at least one wheel for the established first actual speed taking into account parameters; determining an actual slip of the at least one wheel with respect to a substrate on which the motor vehicle is being moved; when the actual slip exceeds a defined first limit slip, generating a limit torque by which the drive torque produced by the drive unit is adjusted.
B60W 50/12 - Limiting control by the driver depending on vehicle state, e.g. interlocking means for the control input for preventing unsafe operation
B60W 10/04 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
The invention relates to a fluid conducting assembly for a multi-plate friction clutch, comprising: an inner plate support (3) with a support section (5), a shoulder section (7), and a shaft section (6), said support section (5) having a connection structure (8) in order to receive inner plates (29) in a rotationally fixed in an axially movable manner; and a fluid conducting element (4) that is rigidly connected to the inner plate support (3) and has an annular collecting section (12), in which inflowing fluid can be collected, and multiple lug sections (13), which are distributed over the circumference and extend in the axial direction and each of which has a radial through-opening (14), wherein the inner plate support (3) has multiple radially outer longitudinal grooves (11), which extend axially from the shoulder section (7) into the support section (5) and which are covered by lug sections (13) of the fluid conducting element (4). The invention additionally relates to a clutch unit comprising such a fluid conducting assembly.
The invention relates to a differential transmission (1) for transmitting a torque onto an axle (2) of a motor vehicle (3), at least comprising a differential cage (4) and two output shafts (5, 6) with a common axis of rotation (7), as well as a multi-plate clutch (8) with at least one inner disc (9) and at least one outer disc (10) for the switchable connection of a first output shaft (5) to the differential cage (4).
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
F16H 48/22 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using friction clutches or brakes
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
F16H 48/40 - Constructional details characterised by features of the rotating cases
F16H 57/04 - Features relating to lubrication or cooling
The invention relates to a method for operating a powertrain (1) of a vehicle (2). The powertrain (1) has at least one transmission housing (3), a clutch assembly (4) which is arranged therein and comprises a clutch (5) that operates in a positively locking manner, and an actuation unit (6) for actuating the clutch (5). The clutch (5) comprises at least one first clutch component (8), which can be moved along an axial direction (7), and a second clutch component (9), said clutch components being connected together in a form-fitting manner upon actuating the clutch (5); wherein the actuation unit (6) comprises an electromagnetic actuator (10) with a piston (11), and the piston (11) is moved from a starting position (12) into an end position (13) along the axial direction upon actuating the clutch (5), thereby moving the first clutch component (8).
An actuator assembly for actuating two switching units in the driveline of a motor vehicle comprises a housing; an actuator drive; a switching rod arranged in the housing and axially movable by the actuator drive in three positions; a first switching element and a second switching element axially movably arranged on the switching rod; a spring element which biases the first switching element against a first shaft stop and the second switching element against a second shaft stop; a first housing stop against which the first switching element can be axially supported; and a second housing stop against which the second switching element can be axially supported. A transmission assembly can include such an actuator assembly.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
B60K 6/387 - Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/365 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
F16D 21/00 - Systems comprising a plurality of mechanically-actuated clutches
F16H 37/08 - Combinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with a plurality of driving or driven shaftsCombinations of mechanical gearings, not provided for in groups comprising essentially only toothed or friction gearings with arrangements for dividing torque between two or more intermediate shafts with differential gearing
F16H 63/08 - Multiple final output mechanisms being moved by a single common final actuating mechanism
F16H 63/30 - Constructional features of the final output mechanisms
This shift fork for driving a coupling sleeve in combination with an actuator is provided with: a shift rod that extends along a first axis and that couples with the actuator so as to move linearly along the first axis direction; a guide rod that extends along a second axis and is fixed; and a fork member that is movable along a third axis as guided by the guide rod, and that is provided with, as a unit, a first end detachably interlocked with the shift rod, a second end having a fork that engages with the coupling sleeve, and, apart from both the first end and the second end, a cylindrical piece having a through-hole along which the cylindrical piece slides on the guide rod.
This final drive comprises: a differential device including a casing that can rotate by being provided with a ring gear meshing with a shaft, and side gears accommodated in the casing and coupled to respective axles; a clutch member accommodated in the casing and locked to the casing by linking with one of the side gears; an actuator disposed outside of the casing; and a housing. The actuator is provided with: a rotatable action member which can move in the direction of the clutch member and is drivingly coupled to the clutch member; a motor that is gear-coupled to the action member and rotates the action member; a counter member brought into contact with the action member; and a cam structure that converts the rotation of the action member relative to the counter member into motion in the axial direction and causes the clutch member to delink from/link to one of the side gears. The housing surrounds the differential device, the action member, and the counter member, and prevents rotation of the counter member.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
A final drive differentially for distributing torque input into a shaft via a differential device to a pair of axles is provided with a ring gear coupled via gearing to the shaft to transmit the torque to the differential device. A housing unitarily includes a main portion supporting the shaft and enclosing the differential device, and a wall portion including a first opening through which one of the axles passes and supporting a first end of the differential device. A cover included a second opening through which the other of the axles passes, and is combined with the housing to support a second end of the differential device, wherein the wall portion, the ring gear, and the shaft are arranged, from the wall portion toward the cover, in an order of the wall portion, the ring gear, and the shaft.
An actuator for operating, from the exterior, a clutch in the interior of a device capable of rotating around an axis, said actuator comprising: a drive unit provided with a plurality of electromagnetic coils arranged around the axis and each oriented so as to generate magnetic flux in a direction parallel to the axis; an armature that is arranged coaxially with the axis, is movable in the axial direction, and faces the drive unit in the axial direction; and a plunger that is coupled to the armature and transmits axial motion to the clutch.
F16H 48/34 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means using electromagnetic or electric actuators
The invention relates to a clutch assembly, comprising: - at least one controllable friction clutch (3, 3') for variable torque transmission between a clutch input part (4, 4') and a clutch output part (5, 5'); - a hydraulic actuator assembly (6) for actuating the friction clutch (3, 3'), the actuator assembly (6) comprising a hydraulic pump (10), a hydraulic chamber (12, 12'), in which a hydraulic pressure for the friction clutch (3, 3') is built up by means of the hydraulic pump (10), and a return-flow element (13) having an orifice (11). Via the return-flow element, hydraulic fluid can flow out of the hydraulic chamber (12, 12') into a housing chamber (8) when the hydraulic pump (10) is not actuated. The hydraulic fluid (9) defines a fill level (F) in the housing chamber (8). In the quiescent state, an outlet opening (14) of the return-flow element (13) lies below the fill level (F) of the hydraulic fluid (9).
A vehicle power transfer unit assembly includes an input shaft, a shift collar, an outer cam ring, and an inner cam ring. The shift collar is engaged with the input shaft and operable between a first position and a second position. The outer cam ring is disposed around a portion of the shift collar. The outer cam ring includes an inner surface defining a plurality of levels. The inner cam ring is engaged with the shift collar and disposed radially inward from the outer cam ring. The inner cam ring includes a jaw engageable with the plurality of levels. The shift collar is moved from the first position to the second position when the jaw is moved from engagement with one of the plurality of levels to engagement with another of the plurality of levels.
B60K 17/34 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
B60K 17/346 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having a transfer gear the transfer gear being a differential gear
B60K 17/354 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having separate mechanical assemblies for transmitting drive to the front or to the rear wheels or set of wheels
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
F16D 11/14 - Clutches in which the members have interengaging parts with clutching members movable only axially
F16D 23/12 - Mechanical clutch-actuating mechanisms arranged outside the clutch as such
A system for controlling a clutch for controlling transmission of torque around a shaft to a vehicle, the system being provided with: an action member capable of rotating around the shaft; a motor that engages with the action member in a drivable manner and provides the action member with a rotational motion around the shaft; a conversion mechanism that engages with the action member in a drivable manner and converts the rotational motion around the shaft into an axial motion; a clutch member that is for forming the clutch, engages with the conversion mechanism in a drivable manner to be driven by the axial motion, and is axially movable from a first position for disconnecting the clutch to a third position for connecting the clutch through a second position in a reciprocating manner; and a controller that reads the angle of rotation of the motor to compare the same with a reference value and thus determines which of the first position, second position, and third position the clutch member is located at.
