Provided is a signal generating device for an engine, comprising: a rotation sensor that is configured so as to output a signal each time a change in magnetic flux is detected, and that is fixed to a case of an engine; and a rotor provided with a reluctor for causing a change to occur in the magnetic flux detected by the rotation sensor each time the rotation position of a crankshaft matches a set rotation position. The signal generating device for an engine causes a signal to be outputted from the rotation sensor each time the rotation position of the crankshaft matches the set position. The reluctor is provided so that in one rotation of the crankshaft, a first signal pair comprising two signals generated successively with a first polarity and a second signal pair comprising two signals generated successively with a second polarity are generated once each from the rotation sensor.
An ignition control apparatus, e.g., for an internal combustion engine, includes a rotational speed calculation unit that calculates a rotational speed of an alternating current generator. A rotor of the alternating current generator is driven to rotate in synchronization with reciprocating motion of a piston of the internal combustion engine. An ignition timing determination unit determines an ignition timing of the internal combustion engine based on the rotational speed calculated by the rotational speed calculation unit. An ignition control unit supplies electric power to an ignition coil such that the internal combustion engine is ignited at the timing determined by the ignition timing determination unit.
F02D 41/34 - Commande de l'injection de combustible du type à basse pression avec des moyens pour commander la synchronisation ou la durée de l'injection
F02D 41/00 - Commande électrique de l'alimentation en mélange combustible ou en ses constituants
F02D 41/02 - Dispositions de circuits pour produire des signaux de commande
F02D 43/00 - Commande électrique simultanée de plusieurs fonctions, p. ex. allumage, mélange air-combustible, recirculation, suralimentation ou traitement des gaz d'échappement
Provided are: a novel outer rotor-type electric motor capable of reducing the weight of a rotor yoke and suppressing the saturation of the magnetic flux density associated therewith; and a method for manufacturing a rotor yoke of an outer rotor-type electric motor. In accordance with the magnetic flux density of the magnetic flux generated in a side peripheral wall portion 19S of a rotor yoke 19, a side peripheral wall portion 19S of the rotor yoke 19 is formed to have a thin plate thickness in a region (LMg) where the magnetic flux density is small, and the side peripheral wall portion 19S of the rotor yoke 19 is formed to have a thick plate thickness in a region (HMg) where the magnetic flux density is large. Since the plate thickness of the annular rotor yoke is configured in accordance with the generated magnetic flux density such that the plate thickness is small in the region where the magnetic flux density is small and the plate thickness is great in the region where the magnetic flux density is large, it is possible to reduce the weight of a rotor yoke and suppress the saturation of the magnetic flux density associated therewith.
A driving control device for a fuel pump may include a valve-opening-rate calculating unit and a driving control unit. The valve-opening-rate calculating unit may be configured to calculate an injector valve opening rate. The injector valve opening rate may be an injection time of an injector per unit time. The driving control unit may be configured to set a voltage duty ratio of a driving voltage that should be applied to the fuel pump that supplies fuel in a fuel tank to a fuel pipe communicating with the injector. The driving control unit may be further configured to set the voltage duty ratio to a value that is proportional to the injector valve opening rate calculated via the valve-opening-rate calculating unit.
Provided is an engine control device that performs a control operation with, as a power supply, an external power supply that functions to convert an output voltage of an AC generator driven by an engine into a DC voltage used as a power supply voltage of a DC load including a load that is necessarily driven during an engine operation. The present invention comprises: an external power supply connection terminal to which a positive electrode side output terminal of an external power supply is connected; a storage element connection terminal to which a positive electrode terminal of a storage element charged by output of the external power supply is connected; a rectification element connected between the external power supply connection terminal and the storage element connection terminal with, as a forward direction, a direction from the storage element connection terminal side to the external power supply connection terminal; and a normally-off switching element connected between the external power supply connection terminal and the storage element connection terminal and allowing electric conduction from the external power supply connection terminal to the storage element connection terminal side in an ON state.
H02J 7/14 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge de batteries par des générateurs dynamo-électriques entraînés à vitesse variable, p. ex. sur véhicule
F02D 29/02 - Commande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des véhiculesCommande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des hélices à pas réglable
F02D 29/06 - Commande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des groupes électrogènes
F02D 45/00 - Commande électrique non prévue dans les groupes
H02J 7/16 - Régulation du courant ou de la tension de charge par variation de champ
Provided is an electric motor in which a terminal section of a magnet wire that constitutes a stator coil can precisely be drawn out in a specific direction as a lead wire. A wire cover made from a hard insulating resin is pressed into a wire withdrawal hole provided in an end member that closes one end of a motor housing, and each lead wire is drawn out to the outside through a through-hole provided in this wire cover. Crush ribs are provided on a side surface of a head section of the wire cover, and the crush ribs are crushed to allow the wire cover to be pressed into the wire withdrawal hole; as a result thereof, tilting of the wire cover within the wire withdrawal hole is prevented and deviation of the withdrawal direction of the lead wires from a specific withdrawal direction is prevented.
Provided is an electric motor in which an attachment flange is attached to one axial end of a motor housing in which a motor body is accommodated. The attachment flange comprises a main plate disposed so as to be in contact with an end wall of the motor housing, a cylindrical spigot-type convex part that protrudes from the main plate away from the motor housing, a rotating-shaft lead-out opening formed through the main plate on the inside of the spigot-type convex part in order for the rotating shaft of the motor body to be led to the outside, and a lateral wall that protrudes from the outer edge of the main plate toward the motor housing. Joined to the motor housing by TOX fastening are: a plurality of joining spots set in a region positioned between the spigot-type convex part and the rotating-shaft output opening of the main plate of the attachment flange, and a plurality of joining spots set in each of two parts to be secured that are set on the lateral wall of the flange.
H02K 5/04 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction
H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
An engine control device that controls electronic components of an engine, including an ignition device, by using a microcomputer that is operated by a power source voltage supplied from a control-use power source unit for which a generator driven by the engine is the power source. A step-down circuit, which uses a capacitor-discharge type device as the ignition device, steps down the voltage at both ends of the capacitor of this ignition device, and applies the resulting voltage to a power source line of the microcomputer, is provided, and in the process of stopping the engine the power source voltage from the step-down circuit is supplied to the microcomputer, thereby enabling the operational state of the microcomputer to be maintained even after the power source voltage supplied from the control-use power source unit to the microcomputer is depleted when the engine stops; thus, the microcomputer can be made to reliably carry out a process when the engine is stopped.
F02D 45/00 - Commande électrique non prévue dans les groupes
F02P 5/145 - Avance ou retard à l'allumage par étincelle électriqueLeur commande automatiquement, en fonction des conditions de travail du moteur, du véhicule ou des conditions atmosphériques utilisant des moyens électriques
Provided is a fuel injection control device with which it is possible to accurately estimate the amount of fuel remaining in an intake passageway when starting an engine, and to accurately set the amount of fuel injection when starting the engine. In the fuel injection control device according to the present invention, during a process in which the engine transitions from a driving state to a stop state, engine stop information which includes information indicating at least whether the current engine stop is an intentional stop associated with a fuel cut is acquired and stored in a non-volatile memory. When the engine is started, it is determined whether the previous engine stop was an intentional stop on the basis of the engine stop information stored in the non-volatile memory, and the amount of fuel injection when starting the engine is determined in view of the result of determination.
F02D 41/06 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour le démarrage ou le réchauffage du moteur
F02D 41/12 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour la décélération
F02D 41/32 - Commande de l'injection de combustible du type à basse pression
F02D 45/00 - Commande électrique non prévue dans les groupes
Provided is a battery-charging device in which a full bridge-type rectification circuit, in which each arm comprises a MOSFET, is used as a circuit for rectifying the output of a magnet-type AC generator. The charging device according to the present invention is provided with: an on/off-state-determining means for determining, on the basis of the polarity of the potential of the input terminal of a rectification circuit, the on/off state to be assumed by each MOSFET of the rectification circuit during charging of a battery; a during-charge FET control means for performing, during charging of a battery, a control of matching the state of each of the MOSFETs in the rectification circuit with the state determined by the on/off-state-determining means; a short-circuit control means for performing a short-circuit control of short-circuiting the output terminals of the generator when the charging of the battery is suspended; and an FET-off means for producing, at a given cycle, an FET-off period in which all of the MOSFETS of the rectification circuit are in an OFF state. Even while a short-circuit control is being performed, information for determining the state to be assumed by each MOSFET of the rectification circuit during the charging of the battery can be obtained during each FET-off period.
H02J 7/14 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge de batteries par des générateurs dynamo-électriques entraînés à vitesse variable, p. ex. sur véhicule
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
Provided is a novel electric motor in which it is possible to reduce the axial length of the electric motor and ensure a sufficient fastening force between a rotor core and a rotary shaft. Unit accommodating recess parts 26 that correspond to hook parts 25B of each electroconductive segment 25 of a commutator 19 are formed in a ring shape intermittently at every prescribed angle on an end surface part 14F, which faces the side of the commutator 19 and which is orthogonal to the rotary shaft 16 of a rotor core 14. The rotor core 14 is press-fitted and secured to the rotary shaft 16 until the hook parts 25B of each electroconductive segment 25 of the commutator 19 are accommodated in the unit accommodating recess parts formed on the end surface part 14F of the rotor core 14. According to this feature, only the hooks 25B of the electroconductive segments 25 of the commutator 19 are accommodated in the unit accommodating recess parts 26, therefore making it possible to reduce the axial length of the electric motor; in addition, it is possible to secure a sufficient axial length of a fastening part 27 for fastening the rotor core 14 and the rotary shaft 16, making it possible to reliably fasten the rotor core 14 and the rotary shaft 16.
H02K 13/00 - Association structurelle de collecteurs de courant et de moteurs ou de génératrices, p. ex. plaques de montage des balais ou connexions avec les enroulementsAgencement des collecteurs de courant dans les moteurs ou les génératricesDispositions pour améliorer la commutation
Provided is a novel electric motor in which it is possible to reduce the axial length of the electric motor and to improve the reliability of wiring that is in contact with noise reduction elements. Housing grooves 49 that house wiring 46 connected to noise reduction elements 33, 34 are formed in a flat surface part 35 of a synthetic-resin brush plate 30 that accommodates a brush assembly 32. The wiring 46 is housed in the housing parts 49, and related electrical components are connected to the noise reduction elements 33, 34. This configuration allows the wiring 46 to be housed in the housing grooves 49, obviating the need for a layer of synthetic resin having an excess thickness due to embedding, and suppressing an increase in the axial length of the electric motor. In addition, because the wiring is housed in the housing grooves, damage to the wiring from vibrations is minimized and reliability is increased.
H02K 11/026 - Dispositifs antiparasites associés à des balais, des porte-balais ou leurs supports
H02K 13/00 - Association structurelle de collecteurs de courant et de moteurs ou de génératrices, p. ex. plaques de montage des balais ou connexions avec les enroulementsAgencement des collecteurs de courant dans les moteurs ou les génératricesDispositions pour améliorer la commutation
13.
ENGINE ROTATIONAL SPEED VARIATION AMOUNT DETECTING DEVICE AND ENGINE CONTROL DEVICE
Provided is a rotational speed variation amount detecting device for a multi-cylinder four-cycle engine, which: detects a specific part of an alternating current voltage waveform output by a power generation coil provided for an ignition unit corresponding to each cylinder in the engine, and generates one rotation signal corresponding to each cylinder for each rotation of a crankshaft; detects, as a rotation signal generation interval of each cylinder each time a new rotation signal corresponding to each cylinder is generated, an elapsed time from the generation of the rotation signal corresponding to each cylinder in the previous cycle until the generation of the rotation signal in the current cycle; calculates, as a rotation signal generation interval variation amount each time the rotation signal generation interval for each cylinder is detected, a difference between the newly detected rotation signal generation interval for each cylinder and the rotation signal generation interval detected in the previous cycle for the same cylinder; and detects an amount of variation in the rotational speed of the engine on the basis of the rotation signal generation interval variation amount, thereby detecting the amount of variation in the rotational speed of the engine a plurality of times during one rotation of the crankshaft.
Provided is a novel electric motor wherein the tilting of the rotating shaft of a rotor is suppressed to reduce the generation of noise. The electric motor is configured so that: the outer peripheral surface of a synthetic resin cover plate 21 which closes the opening 10A of a metallic motor housing 10 has formed thereon a seal region in which a seal member 23 is disposed, and also has formed thereon a press-fit region protruding radially outward from the opening of the motor housing and having at least three protruding press-fit sections 24 formed thereon; and the protruding press-fit sections are deformed while the cover plate 231 is press-fitted in the opening 10A of the motor housing 10, thereby aligning the axis of the motor housing 10 and the axis of the cover plate 21. The axis of the motor housing and the axis of the cover plate can be aligned by the deformation of the protruding press-fit sections, and as a result, the tilting of the rotation axis of a rotor can be suppressed to reduce the generation of noise.
H02K 5/10 - Enveloppes ou enceintes caractérisées par leur configuration, leur forme ou leur construction avec des dispositions empêchant l'introduction de corps étrangers, p. ex. de l'eau ou des doigts
15.
INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND INTERNAL COMBUSTION ENGINE CONTROL METHOD
Provided are an internal combustion engine control device and a control method using the same, wherein a capacitor is charged without waste and at high efficiency so that stop processing by a microcontroller can be securely executed during an irregular engine stop, while startability of the engine is increased. The present invention comprises: a microcontroller that controls the operation of an internal combustion engine; a power source regulator that outputs a direct-current adjusted voltage adjusted from the power of an alternating-current generator; a 5-volt regulator that receives output from the power source regulator and supplies power to the microcontroller; a low-capacity first capacitor connected to the output of the power source regulator; a plurality of second capacitors connected in parallel to the first capacitor; and a plurality of opening/closing means respectively connected in series to the plurality of second capacitors. The opening/closing means are controlled to open and close by the microcontroller so that the second capacitors are charged if the output of the power source regulator has reached an ON voltage at or below the adjusted voltage.
F02D 45/00 - Commande électrique non prévue dans les groupes
F02D 29/06 - Commande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des groupes électrogènes
F02D 41/20 - Circuits de sortie, p. ex. pour la commande des courants dans les bobines de commande
F02N 3/02 - Autres appareils de démarrage actionnés par la force musculaire comportant un cordon de démarrage
F02N 3/04 - Autres appareils de démarrage actionnés par la force musculaire comportant des leviers actionnés au pied
F02N 11/08 - Circuits spécialement adaptés pour le démarrage des moteurs
Provided is a stroke determination device which detects a secondary output from an ignition coil without using a high breakdown voltage element, and on the basis of the waveform of the detected secondary output, is capable of accurately determining the stroke being completed during the ignition operation of a 4-stroke engine. The present invention configures a secondary coil of an ignition coil from a first coil section and a second coil section which is connected in series to the first coil section and is wound so as to have fewer windings than does the first coil section. A tap is drawn from the boundary between the two coil sections, the voltage at both ends of the second coil section or the current flowing through the second coil section is detected via the tap, and a parameter to be used in stroke determination is detected on the basis of the waveform of the detected voltage or current.
F02P 17/00 - Test des systèmes d'allumage, p. ex. en combinaison avec le réglageTest de synchronisme de l'allumage dans les moteurs à allumage par compression
F02D 45/00 - Commande électrique non prévue dans les groupes
This engine ignition method involves: providing an ignition coil and an exciter coil inside a permanent magnet generator driven by the engine; charging an ignition capacitor using the output voltage from the exciter coil; thereafter, generating a first spark discharge in a spark plug by applying a high voltage induced in the secondary coil of the ignition coil to the spark plug, by discharging the ignition capacitor through a primary coil of the ignition coil during the engine ignition period; and generating a second spark discharge in the spark plug by applying a voltage induced in the secondary coil of the ignition coil as the permanent magnet rotor rotates to the spark plug, the discharge gap isolation of which has been disrupted by the first spark discharge.
The present invention protects a permanent magnet constituting a rotating body and a permanent magnet constituting the rotors of an electric compressor and a turbine power generator from centrifugal force and prevents the magnets from breaking due to heat cycling. The rotating body is provided with a shaft, a plurality of magnets cylindrically arranged and fixed on the outer circumference of the shaft, and a cylindrical protection member formed by winding a filament around the outer perimeters of the magnets, wherein a non-adhesive layer is interposed between the outer perimeters of the magnets and the inner circumference of the protection member.
Disclosed is an engine drive system in which an open type regulator is used as a regulator for rectifying the output of a magnet type alternator driven by an engine and for adjusting the voltage. When the load of the alternator is applied during idle operation of the engine, a means for performing processing to increase the degree of opening of the ISC valve for only a limited amount of time is provided, and the output torque of the engine is temporarily increased to thereby prevent a significant reduction in the rotational speed of the engine during idle operations, and prevent stalling of the engine.
F02D 29/06 - Commande de moteurs, cette commande étant particulière aux dispositifs entraînés, ces dispositifs étant autres que des organes ou accessoires essentiels à la marche du moteur, p. ex. commande de moteur par des signaux extérieurs particulière aux moteurs entraînant des groupes électrogènes
F02D 9/02 - Commande des moteurs par étranglement des conduits d'amenée de l'air ou du mélange air-combustible ou par étranglement des conduits d'échappement par étranglement des conduits d'amenée
F02D 41/08 - Dispositions de circuits pour produire des signaux de commande introduisant des corrections pour des conditions particulières de fonctionnement pour le ralenti
F02D 45/00 - Commande électrique non prévue dans les groupes
The present invention relates to a magnet generator, wherein the mass can be reduced without a reduction in desired inertia and engine lock due to vibration or shock is prevented in a high rotation speed region. This magnet generator is provided with: a bowl-like flywheel having a cylindrical section and a ceiling section; a rotor comprising a plurality of permanent magnets provided on the inner circumferential wall of the cylindrical section, and a boss provided in the center of the ceiling section and attached to an output shaft of the engine; and a stator comprising laminated steel plates and coils facing the permanent magnets and fixed to the engine side inside the flywheel, wherein at least a portion of the ceiling section of the flywheel is formed of a synthetic resin and the remaining portion is formed of metal.
H02K 21/22 - Moteurs synchrones à aimants permanentsGénératrices synchrones à aimants permanents avec des induits fixes et des aimants tournants avec des aimants tournant autour des induits, p. ex. volants magnétiques
H02K 1/27 - Noyaux rotoriques à aimants permanents
Provided is a dynamo-electric machine having a structure in which the outer rings of a first and second bearings 8A, 8B for supporting a rotating shaft are fitted in the inner periphery of the yoke of a stator core and the rotating shaft 7 is press-fitted inside the inner rings of the bearings. In order to prevent damage to the rolling bodies of the first and second bearings during the press-fitting of the rotating shaft into the inner rings of the bearings, a collar 9 is inserted between the inner rings of the first and second bearings so as to be abut against the inner rings of the bearings and then the rotating shaft is fitted in the collar with a clearance therebetween. A collar position restricting protrusion 108 for restricting the radial displacement of the collar 9 is provided on the inner diameter side of bearing displacement restricting protrusions 107 with a gap retained between the bearings 8A, 8B, the bearing displacement restricting protrusions 107 being provided on the inner periphery of the stator yoke 101 in order to restrict the axial displacement of the bearings 8A, 8B.
H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes
An internal-combustion engine power supply device uses, as a power supply, an electric generator driven by an internal-combustion engine to supply electric power to a first load which requires to be constantly driven in order to operate the internal-combustion engine, and to a second load which is allowed not to be driven at the time the engine is started. A first power generation coil for driving the first load and a second power generation coil for driving the second load are provided in the power generator in a mutually magnetically closely coupled state. In a state in which energization of the load from the second power generation coil is inhibited, chopper control of an energizing current through the first power generation coil and chopper control of an energizing current through the second power generation coil are simultaneously performed, thereby boosting the voltage applied to the load during low speed rotation of the engine to a voltage value higher than in the prior art.
H02P 9/30 - Dispositions pour la commande de génératrices électriques de façon à obtenir les caractéristiques désirées à la sortie par variation du champ utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant des dispositifs à semi-conducteurs
Provided is an ignition device for an internal combustion engine of which engine startability is improved, the ignition device having a primary current detector for detecting a primary current of an ignition coil, a means for detecting, as a reference timing, the timing at which the detected value of the primary current reaches a threshold, a switch drive means for putting a current control switch, which controls the turning on and off of the primary current of the ignition coil, into a state in which the current control switch can be turned on when a power source of a microcomputer is established or when the reference timing is detected after the beginning of an engine startup operation, and a startup ignition control means for detecting a timing that can be used as an ignition period during engine startup from the waveform of the primary current when the engine starts up, and performing an ignition operation by turning the current control switch off at the detected timing.
brevets
