Abstract: A hybrid vehicle including: an engine; output member that transmits driving force to drive wheels; a rotating electric machine; and a power split mechanism that splits and transmits the driving force output from the engine to the output member and the rotating electric machine, the mechanism including at least three rotating elements of an input element connected to the engine, a reaction force element connecting the rotating electric machine, and an output element connecting the output member, the machine capable of outputting reaction force torque to required engine torque based on an acceleration request to apply torque to the required engine torque to the drive wheel, where the machine does not output the reaction force torque, engine rotation speed increase control being able to be executed, engine torque limitation due to a NV requirement being able to be executed and which is relaxed during the engine rotation speed increase control.

Abstract: A clutch includes: an input member and an output member that rotate about an axis; an actuator fixed so as to be nonrotatable, the actuator having a plunger, a case, and a coil housed in the case; and an elastic member having one end which is connected to the output member via a bearing and another end which is connected to the plunger directly or indirectly. Further, when the coil is energized and the plunger is attracted in a direction of the axis, the another end of the elastic member is biased in the direction of the axis, the elastic member is elastically deformed, and the output member is consequently pressed against and engaged with the input member.

Abstract: A hybrid vehicle including: an engine; output member that transmits driving force to drive wheels; a rotating electric machine; and a power split mechanism that splits and transmits the driving force output from the engine to the output member and the rotating electric machine, the mechanism including at least three rotating elements of an input element connected to the engine, a reaction force element connecting the rotating electric machine, and an output element connecting the output member, the machine capable of outputting reaction force torque to required engine torque based on an acceleration request to apply torque to the required engine torque to the drive wheel, where the machine does not output the reaction force torque, engine rotation speed increase control being able to be executed, engine torque limitation due to a NV requirement being able to be executed and which is relaxed during the engine rotation speed increase control.

Abstract: A selectable clutch includes: input and output members; a pocket plate connected to the output member; struts accommodated in accommodation recess portions of the pocket plate; a notch plate connected to the input member; a selector plate, disposed between the pocket plate and the notch plate; contact portions, movable in an axial direction of the rotational axis, rotating integrally with the selector plate around the rotational axis; and an actuators, fixed so as to be non-rotatable, including a plungers connected with the contact portion via bearings, cases, and coils accommodated in the cases. Further, by the coils being energized and the plungers being sucked in the axial direction, the contact portions are pushed in the axial direction, and by the contact portions being pushed to the input member, the selector plate rotates and the struts rise up.

Abstract: A hybrid vehicle includes an engine; a motor generator; and an electronic control unit to control the engine and the motor generator. Further, when an engine speed thereof is increased, the electronic control unit calculates an engine torque by adding an engine inertia torque to a request engine torque and cause the engine to output the calculated engine torque, and cause the motor generator to output a reaction torque in response to the request engine torque, and the electronic control unit performs control so that a torque assistance amount exerted by the motor generator is changeable while the engine speed is increased.

Abstract: A hybrid vehicle includes an engine; an output member, a rotary electric machine; and a power dividing mechanism including an input element coupled to the engine, a reaction force element coupled to the rotary electric machine, and an output element coupled to the output member. Further, the rotary electric machine is provided such that, in order that a torque corresponding to required engine torque based on an acceleration request is applied to the drive wheel, a reaction torque corresponding to the required engine torque is output, the reaction torque of the rotary electric machine is output when an engine speed is equal to or higher than a predetermined value, and, when the engine speed is lower than the predetermined value, an engine speed increase rate is maximized regardless of an accelerator opening degree.

Abstract: A selectable clutch includes: input and output members; a pocket plate connected to the output member; struts accommodated in accommodation recess portions of the pocket plate; a notch plate connected to the input member; a selector plate, disposed between the pocket plate and the notch plate; contact portions, movable in an axial direction of the rotational axis, rotating integrally with the selector plate around the rotational axis; and an actuators, fixed so as to be non-rotatable, including a plungers connected with the contact portion via bearings, cases, and coils accommodated in the cases. Further, by the coils being energized and the plungers being sucked in the axial direction, the contact portions are pushed in the axial direction, and by the contact portions being pushed to the input member, the selector plate rotates and the struts rise up.

Abstract: A clutch includes: an input member and an output member that rotate about an axis; an actuator fixed so as to be nonrotatable, the actuator having a plunger, a case, and a coil housed in the case; and an elastic member having one end which is connected to the output member via a bearing and another end which is connected to the plunger directly or indirectly. Further, when the coil is energized and the plunger is attracted in a direction of the axis, the another end of the elastic member is biased in the direction of the axis, the elastic member is elastically deformed, and the output member is consequently pressed against and engaged with the input member.

Abstract: A hybrid vehicle includes an engine; a motor generator; and an electronic control unit to control the engine and the motor generator. Further, when an engine speed thereof is increased, the electronic control unit calculates an engine torque by adding an engine inertia torque to a request engine torque and cause the engine to output the calculated engine torque, and cause the motor generator to output a reaction torque in response to the request engine torque, and the electronic control unit performs control so that a torque assistance amount exerted by the motor generator is changeable while the engine speed is increased.

Abstract: Provided is a control apparatus for a hybrid vehicle, a clutch being provided in a power transmission path leading from an engine to drive wheels, the clutch transmitting torque between the engine and the drive wheels when engaged, the clutch interrupting the transmission of torque between the engine and the drive wheels, the control apparatus including an ECU configured to execute drive control for consuming electric power of a storage device by driving a first motor, when the clutch is kept in a released state and the clutch cannot be engaged and an amount of electrical charge of the storage device is higher than a prescribed first threshold value.

Abstract: A drive unit for a hybrid-vehicle to realize a variety of drive modes for covering various running conditions. A first planetary gear unit is included of a first carrier, a first sun gear, and a first ring gear. A second planetary gear unit is included of a second carrier, a second sun gear, and a second ring gear. A first clutch connects the engine selectively with the first carrier. A first motor is connected with the first sun gear, the second motor is connected with the second sun gear, and the first ring gear and the second ring gear are individually connected with an output member. The drive unit is with a second clutch for connecting the first carrier selectively with the second sun gear. In the drive unit, a reverse stage fixing-mode to propel the vehicle backwardly while changes the output member speed in accordance with the engine speed.

Abstract: A control system for hybrid vehicle for extending a possible travelling distance of the vehicle in the event of clutch failure is provided. The control system is configured to select a first drive mode in which the vehicle is powered by an engine in case an estimated torque transmitting capacity of the clutch in trouble is larger than a first threshold value, and to select a second drive mode in which the vehicle is powered by a motor in case the estimated torque transmitting capacity of the clutch in trouble is smaller than the first threshold value. The control system is further configured to reduce an engine torque to be smaller than the estimated torque transmitting capacity of the clutch in case the first drive mode is selected.

Abstract: A control system for a hybrid vehicle configured to promptly shift a drive mode. In the single-motor mode, the vehicle is powered by a second motor while bringing an engagement device into disengagement and stopping the engine. In the dual-motor mode, the vehicle is powered by both a first motor and the second motor while bringing the engagement device into engagement and stopping a rotation of the output shaft of the engine by a stopper device. When shifting the drive mode from the single-motor mode to the dual-motor mode, the control system controls the first motor in a manner such that a speed difference between an input speed and an output speed of the engagement device is reduced while increasing a torque transmitting capacity of the engagement device.

Abstract: A vehicle control system for preventing malfunction of the clutch for selectively connecting the engine with the power train. The vehicle control system is applied to a vehicle having an engine, a motor disposed on a power train, and a clutch interposed therebetween. In order to prevent a malfunction of the clutch, the vehicle control system is configured to engage the clutch while causing a slip but without starting the engine if the engine has not yet been started.

Abstract: A control system for a hybrid vehicle, the hybrid vehicle includes an engine, a first motor, a second motor, a differential mechanism, and a clutch. The control system includes an electronic control unit. The electronic control unit is configured to: (a) set an EV mode in which a vehicle travels at least by drive power of the second motor among the first motor and the second motor in a state that the engine stops, (b) prohibit setting of the EV mode in a state that the clutch is fully engaged when a vehicle speed is at least equal to a predetermined first vehicle speed threshold value, and (c) prohibit setting of the EV mode in a state that the clutch is disengaged when the vehicle speed of the vehicle that travels in the EV mode is at most equal to a predetermined second vehicle speed threshold value.

Abstract: At the time of changing from an EV mode, in which a hybrid vehicle travels with the use of a second motor provided on an output side of a differential mechanism while torque that acts on any one of rotating elements of the differential mechanism is interrupted by a clutch, to an HV mode, in which the hybrid vehicle travels while transmitting output torque of an engine to a drive wheel, when the engine is started in a state where the clutch is slipped and torque is transmitted from the engine so as to increase the rotation speed of the first rotating element while the clutch is slipped, torque starts being output from a first motor such that torque input from the first rotating element to the differential mechanism to increase the rotation speed of the drive wheel is output from the third rotating element.

Abstract: A control system for a hybrid vehicle configured to promptly shift a drive mode. In the single-motor mode, the vehicle is powered by a second motor while bringing an engagement device into disengagement and stopping the engine. In the dual-motor mode, the vehicle is powered by both a first motor and the second motor while bringing the engagement device into engagement and stopping a rotation of the output shaft of the engine by a stopper device. When shifting the drive mode from the single-motor mode to the dual-motor mode, the control system controls the first motor in a manner such that a speed difference between an input speed and an output speed of the engagement device is reduced while increasing a torque transmitting capacity of the engagement device.

Abstract: A control system for hybrid vehicle for extending a possible travelling distance of the vehicle in the event of clutch failure is provided. The control system is configured to select a first drive mode in which the vehicle is powered by an engine in case an estimated torque transmitting capacity of the clutch in trouble is larger than a first threshold value, and to select a second drive mode in which the vehicle is powered by a motor in case the estimated torque transmitting capacity of the clutch in trouble is smaller than the first threshold value. The control system is further configured to reduce an engine torque to be smaller than the estimated torque transmitting capacity of the clutch in case the first drive mode is selected.

Abstract: A hybrid vehicle capable of selecting between a state where a clutch coupling an engine and a motor is engaged and the vehicle travels by drive power of the engine, and a state where the clutch is released and the vehicle travels with the engine stopped, wherein, if there is a request to restart the engine while the engine is rotating after control to release the clutch and stop the engine has been started, then upon the condition that the engine number of revolutions is equal to or greater than a predetermined threshold value, and in a state where the output torque of the motor is limited to a previously established torque or less, control to increase the transmission torque capacity of the clutch is implemented, whereupon the output torque of the motor is increased to a torque that cranks the engine.

Abstract: A vehicle control system for preventing malfunction of the clutch for selectively connecting the engine with the power train. The vehicle control system is applied to a vehicle having an engine, a motor disposed on a power train, and a clutch interposed therebetween. In order to prevent a malfunction of the clutch, the vehicle control system is configured to engage the clutch while causing a slip but without starting the engine if the engine has not yet been started.