The present invention protects an inverter from vibrations. An electric axle apparatus 100 for a vehicle comprises: an axle housing 1 for accommodating a differential device; a speed reducer 2 attached to the axle housing; an electric motor 3 attached to the speed reducer; an inverter 4 attached to at least one of the speed reducer and the electric motor; and a dynamic damper 50 attached to the inverter.
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60G 9/04 - Resilient suspensions for a rigid axle or axle housing for two or more wheels the axle or housing not being pivotally mounted on the vehicle
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
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
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system
H02K 11/33 - Drive circuits, e.g. power electronics
H02M 7/48 - 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
The present invention makes it possible to drive a mounted component even if a motor is connected to a PTO shaft to hybridize a vehicle. A motor drive device 100 for outputting motor drive force for a hybrid vehicle comprises: a motor 21; a first output shaft 22 configured to be connected to a PTO shaft for extracting engine drive force of the hybrid vehicle; a power transmission mechanism 23 for linking the motor and the first output shaft; a second output shaft 24 configured to be connected to a drive source 11 of a mounted object mounted on the hybrid vehicle; and a switching mechanism 25 configured to selectively connect the first output shaft to the second output shaft.
B60K 6/36 - 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
B60K 6/38 - 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 driveline clutches
B60K 17/28 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
B60K 17/356 - Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
B60K 25/06 - Auxiliary drives from the transmission power take-off
The present invention improves assemblability and reliability. An electric axle device 100 for a vehicle includes: an axle housing 1 for housing a differential device; a speed reducer 2 attached to the axle housing; an electric motor 3 attached to the speed reducer; and an inverter 4 attached to the speed reducer and/or the electric motor.
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60G 9/04 - Resilient suspensions for a rigid axle or axle housing for two or more wheels the axle or housing not being pivotally mounted on the vehicle
F16F 1/36 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
Provided is a driving system in which vibration and noise are suppressed. This driving system (1) for an electric automobile comprises a gearbox (3) that outputs driving force from a motor (2), a final reduction gear (4) for transmitting the inputted driving force to left and right vehicle wheels, and a propeller shaft (5) that extends in the longitudinal direction and links the gearbox and the final reduction gear. The propeller shaft is provided with an input end part (9) that is coaxially connected to an output shaft (8) of the gearbox, an output end part (10) that is coaxially connected to an input shaft of the final reduction gear, a constant-velocity joint (7) disposed at an intersection angle θ greater than zero and equal to or less than a prescribed upper-limit value, and a sliding part (11) for allowing relative longitudinal-direction movement of the final reduction gear relative to the gearbox.
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
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
F16D 1/02 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
F16D 3/227 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts the rolling members being guided in grooves in both coupling parts the groove centre-lines of each coupling part lying on a cylinder co-axial with the respective coupling part the joints being telescopic
F16D 3/40 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
Provided is a center bearing support structure with which contact friction between a vibration-absorbing bushing and a bracket can be suppressed without using a metal ring. The center bearing support structure is provided with: a center bearing (1); a bracket (2) supporting the center bearing (1); a tubular vibration-absorbing bushing (9) inserted into an insertion hole (7) of the bracket (2); and a fastener (11) for fastening the bracket (2) to a vehicle body (4) via the vibration-absorbing bushing (9). A fitting groove (13) into which the bracket (2) is fitted when the vibration-absorbing bushing is inserted into the insertion hole (7) is formed in the outer circumferential surfaces (9a, 9b) of the vibration-absorbing bushing, and at the corner portions of the fitting groove (13) clearance grooves (17, 18) for providing clearance for corner portions (8) of the bracket (2) are formed so as to be recessed in the axial direction and inward in the radial direction of the vibration-absorbing bushing (9).
F16F 1/373 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction characterised by having a particular shape
F16F 15/08 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means with rubber springs
B60K 17/24 - Arrangement of mountings for shafting
Provided is a transfer capable of preventing deterioration of responsiveness. A transfer 1 comprises a multiplate clutch 11 provided in a drive system to distribute driving force, an actuator 12 for driving the multiplate clutch 11, and a control device 34 for controlling the actuator 12, wherein the actuator 12 includes a pressing part 25 that presses clutch plates 20, 21 of the multiplate clutch 11, and the control device 34, when switching the multiplate clutch 11 from a connected state to a disconnected state, controls the actuator 12 in such a manner that the pressing part 25 separates from the multiplate clutch 11 in the connected state by a predetermined distance x.
F16D 48/06 - Control by electric or electronic means, e.g. of fluid pressure
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
Provided is a vehicle control system capable of suppressing a shock torque generated in a drive system component of a font wheel. This control system (100) for a vehicle (1) is provided with: a transfer (10) having a multiplate clutch (11); and a control device (50) that controls fastening force of the multiplate clutch (11) according to a speed difference between the front and rear wheels (2, 3), wherein the control device (50) controls, during vehicle traveling, the multiplate clutch (11) so that an increase in the fastening force of the multiplate clutch (11) is suppressed when the angular acceleration (α) of the front wheel (2) has reached a predetermined threshold (αT) or less.
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
Provided is a center bearing capable of sufficiently absorbing vibration with a rubber-like elastic material even when a propeller shaft vibrates to a relatively great degree. A center bearing (15) comprises: a rubber-like elastic material (20) having a shaft hole (23); and a bracket (21). The rubber-like elastic material (20) is formed in a rectangular shape with recessed grooves (24A, 24B) formed in the center of the upper and lower sides, and the bracket (21) is formed in a rectangular shape so as to cover the rectangular rubber-like elastic material. The rubber-like elastic material (20) between the shaft hole (23) and the recessed grooves (24A, 24B) has first slits (31A, 31B) formed on the radially inner side and second slits (32A, 32B) formed on the radially outer side.
Provided is a method for manufacturing a joint member with which manufacturing costs can be suppressed, and a joint member. This method for manufacturing a joint member 10 provided with an outer race 20 and a sleeve 30, for use in a constant velocity joint 100, includes: an outer race manufacturing step S1 for manufacturing the outer race 20; a sleeve manufacturing step S2 for manufacturing the sleeve 30 as a separate member to the outer race 20; and a joining step S3 for joining together end portions, at one end in the axial direction, of the outer race 20 and the sleeve 30.
F16D 3/20 - Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
F16D 1/02 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
F16D 1/068 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
10.
SPLINE SLIDING PART STRUCTURE FOR VEHICULAR POWERTRAIN
Provided is a spline sliding part structure which is for a vehicular powertrain, and can suppress abnormal noise and vibration from a drive system at low cost. The spline sliding part structure for a vehicular powertrain (1) comprises: a male-side spline (23) that extends in a front-rear direction and is formed on the outer circumference of a front end section of an output shaft (9) extending forward; a sleeve part (17) that is formed in a tubular shape surrounding the outer circumference of the male-side spline (23); a female-side spline (24) that is formed on the inner circumference of the sleeve part (17) and is spline-fitted to the male-side spline (23); and an overhang accommodation part (25) which is formed inside the sleeve part (17) and accommodates a front end section (23a) of the male-side spline (23) in a state of extending forward from the female-side spline (24).
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
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
11.
SPLINE SLIDING PART STRUCTURE FOR VEHICLE POWERTRAIN
Provided is a spline sliding part structure for a vehicle powertrain that makes it possible to inexpensively suppress abnormal noises and vibration from a drive system. The spline sliding part structure for a vehicle powertrain 1 is provided with: male-side splines 23 formed so as to extend in the front-back direction on the outer circumference of the front end of an output shaft 9 extending frontward; a sleeve section 17 formed in a cylindrical shape surrounding the outer circumference of the male-side splines 23; and female-side splines 24 that are formed on the inner circumference of the sleeve section 17 and spline-fit to the male-side splines 23. Male-side circumferential flank faces 36 that are formed to have a curved surface shape and connected smoothly to tooth surfaces 23c of the male-side splines 23 facing the circumferential direction of the male-side splines 23 are formed between the front end surfaces 23b of the male-side splines 23 and the tooth surfaces 23c.
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
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
Provided is a center bearing with reduced vibration and increased durability. A center bearing (2) is provided with a bracket (12), a radial bearing (9), a pair of bellows (13), and a stopper (14). The bellows (13) each have a diaphragm section (19), the center of which in a radial direction bulges outward in an axial direction. The stopper (14) is directly or indirectly affixed to the radial bearing or the bracket and is formed so as to protrude in the radial direction. The stopper (14) has formed thereon a flange section (24) extending to one side or both sides in the axial direction.
Provided is a center bearing in which resistance to separation of a rubber-like elastic body from a bracket can be increased while the durability of the rubber-like elastic body against the axial displacement thereof is ensured. A center bearing 2 is provided with: a plate-shaped rubber-like elastic body 12; a bearing holding section 13 provided at the center of the rubber-like elastic body 12; a bracket 14 formed in a frame-like shape surrounding the bearing holding section 13; ribs 15 formed at outer edges of the front surface and rear surface of the rubber-like elastic body 12; a framework 16 embedded between front and rear ribs 15; a pair of claws 17 provided to the bracket 14 and used to grip the ribs 15, in which the framework 16 is embedded, from the outside in a front-rear direction; and a thin-walled section 18 which is formed on the rubber-like elastic body 12 facing the ribs 15, and the dimensions of which in the front-rear direction is less than those of the portions of the rubber-like elastic body 12, at which the ribs 15 are formed.
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
F16C 27/06 - Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
patents