Abstract: A drive unit for a hybrid vehicle capable of improvement of fuel efficiency during HV running is provided. The drive unit includes an engine, a first motor, a second motor, a first planetary gear unit, a second planetary gear unit, a first engagement unit, and a second engagement unit. In a case where an operation state of the vehicle is high vehicle speed and a low driving force in which a requested driving force is small, by bringing the first engagement unit to an engaged state and the second engagement unit to the disengaged state, a first state where a gear ratio which is a rotation number ratio between an input element and an output element of a complex planetary gear unit becomes a first gear ratio ?2 smaller than “1” is set.

Abstract: Provided are a gear train and a vehicle installing the gear train. The gear train is configured to transmit power from a rotating electrical machine to a driving wheel through a differential and a drive shaft. The gear train includes a plurality of shafts on a plurality of axes lying different from each other and a plurality of gears that is disposed respectively on the plurality of shafts. At least one of the plurality of gears is an internal gear.

Abstract: A control system for a vehicle, the control system includes a selectable one-way clutch, a motor, and an electronic control unit. The electronic control unit is configured to (i) execute rotation control to control the motor such that negative differential rotation changes into positive differential rotation when the selectable one-way clutch is switched from a disengaged state to an engaged state while differential rotation of the selectable one-way clutch is negative and (ii) initiate engagement control by a switching mechanism such that a projecting operation of the selectable one-way clutch is completed while the differential rotation is negative.

Abstract: Provided is a drive unit for a hybrid vehicle which can increase selectable modes in an EV mode. A drive unit includes a first planetary gear unit connected to an engine, and a second planetary gear unit connected to a second rotary element of the first planetary gear unit. The drive unit includes a first engagement device which connects rotary elements of the first planetary gear unit, a third rotary element in the first planetary gear unit, a second engagement device which connects any one of a fifth rotary element and a sixth rotary element in the second planetary gear unit, and a third engagement device which can fix a first rotary element of the first planetary gear unit.

Abstract: A shift mechanism switches power transmission paths among a first transmission shaft, a second transmission shaft, and a third transmission shaft that are concentrically arranged on a rotational axis. The shift mechanism has a drive drum that is provided so as to be coaxial with the rotational axis and pivotable about the rotational axis, and a first driven drum and a second driven drum that are arranged on the rotational axis so as to be concentric with the drive drum and move along the rotational axis as the drive drum pivots. As the first driven drum moves, a first shift sleeve advances and retreats, and the first transmission shaft and the second transmission shaft are connected and disconnected. In addition, as the second driven drum moves, a second shift sleeve advances and retreats, and the second transmission shaft and the third transmission shaft are connected and disconnected.

Abstract: A control system for a hybrid vehicle that shift an operating mode to an appropriate mode from a low mode or high mode. The hybrid vehicle comprises a power split mechanism connected to an engine and a first motor. When a required brake torque of a prime mover cannot be achieved during propulsion in an operating mode established by engaging one of clutches while stopping the engine, the control system excites a motoring of the engine by the first motor while maintaining engagement of the clutch engaged to establish the current operating mode.

Abstract: A vehicle includes an engine, a generator, and a motor. The engine burns a gaseous mixture in a cylinder to output a drive force. The generator generates electricity by being rotated by the drive force outputted from the engine. The motor drives by utilizing electric power generated by the generator or electric power that has accumulated in a battery charged with electric power generated by the generator, and the motor thereby outputs a vehicle-running drive force. A case covering the motor is of larger diameter than a case covering a differential. The motor has an output shaft outputting the vehicle-running drive force, and has the output shaft disposed parallel to a vehicle width direction. The generator is disposed such that part of the generator overlaps an upper section of the case covering the differential.

Abstract: A power transmission apparatus includes a first meshing engagement mechanism that selectively couples a first rotational section and a second rotational section; and a second meshing engagement mechanism that selectively couples a third rotational section and a fourth rotational section. The first meshing engagement mechanism includes a first movable member provided with third meshing teeth that mesh with first meshing teeth provided on one of the first and the second rotational sections. The second meshing engagement mechanism includes a second movable member provided with fourth meshing teeth that mesh with second meshing teeth provided on one of the third and the fourth rotational sections. At least a portion of a first movable region of the third meshing teeth and at least a portion of a second movable region of the fourth meshing teeth overlap with each other in a radial direction with respect to a rotational axis.

Abstract: A control system for a vehicle that prevents an unintentional mode change when a command signal cannot be transmitted to an engagement device. In the vehicle, HV-Lo mode is established by connecting a carrier to a carrier by a first clutch while disconnecting the carrier from a ring gear by a second clutch, and HV-Lo mode is established by disconnecting the carrier from the carrier by the first clutch while connecting the carrier to the ring gear by the second clutch. A normally stay clutch is used as at least one of the first clutch and the second clutch.

Abstract: A drive device for a hybrid vehicle includes an engine, a first motor, a power split device, a second motor, a first speed reduction unit, a second speed reduction unit, and a differential gear. The first motor generates electric power. The power split device splits drive power output from the engine to the first motor side and a drive wheel side. The second motor increases or decreases torque output from the power split device and to be transmitted to the differential gear. The second motor is coupled to a sun gear. The first speed reduction unit is coupled to the sun gear. The second speed reduction unit is provided between the first speed reduction unit and the differential gear. The differential gear transmits torque to the drive wheel.

Abstract: A vehicle control system configured to maintain detection accuracy of an external sensor such as an on-board camera. The vehicle control system is applied to a vehicle that can be operated autonomously. A controller communicates with a database stored on the controller and a database stored on an external facility. The controller changes orientation of a headlamp toward an object detected by an on-board camera, in a case that the headlamp is turned on, and that information about the object detected by the on-board camera is not available in the database.

Abstract: A drive unit for a vehicle having a shortened axial length. A drive unit includes a first planetary gear unit, a second planetary gear unit, a first clutch device, and a second clutch device. The first planetary gear unit and the second planetary gear unit are disposed adjacently in an axial direction, and transmit an engine torque to a cylindrical section to which a drive wheel is coupled. A second ring gear of the second planetary gear unit is formed on an inner circumference of the cylindrical section. An output gear is formed on an outer circumference of the cylindrical section. The first planetary gear unit is disposed on an inner circumferential side of an inner smooth region where the second ring gear is not formed in the inner circumference of the cylindrical section.

Abstract: A drive unit for a hybrid vehicle capable of improvement of fuel efficiency during HV running is provided. The drive unit includes an engine, a first motor, a second motor, a first planetary gear unit, a second planetary gear unit, a first engagement unit, and a second engagement unit. In a case where an operation state of the vehicle is high vehicle speed and a low driving force in which a requested driving force is small, by bringing the first engagement unit to an engaged state and the second engagement unit to the disengaged state, a first state where a gear ratio which is a rotation number ratio between an input element and an output element of a complex planetary gear unit becomes a first gear ratio ?2 smaller than “1” is set.

Abstract: Provided is a drive unit for hybrid vehicles capable of reducing electric power consumption during propulsion in an EV mode. The drive unit includes a first planetary gear unit to which an engine is connected, and a second planetary gear unit connected to a third rotary element of the first planetary gear unit. The drive unit includes a first engagement device that connects a first rotary element of the first planetary gear unit and a sixth rotary element of the second planetary gear unit, and a second engagement device that connects a fourth rotary element and the sixth rotary element of the second planetary gear unit.

Abstract: Provided is a drive unit for a hybrid vehicle which can increase selectable modes in an EV mode. A drive unit includes a first planetary gear unit connected to an engine, and a second planetary gear unit connected to a second rotary element of the first planetary gear unit. The drive unit includes a first engagement device which connects rotary elements of the first planetary gear unit, a third rotary element in the first planetary gear unit, a second engagement device which connects any one of a fifth rotary element and a sixth rotary element in the second planetary gear unit, and a third engagement device which can fix a first rotary element of the first planetary gear unit.

Abstract: A vehicle control system to configured to operate a vehicle autonomously while keeping a safe distance from a preceding vehicle is provided. The vehicle control system is configured to operate the vehicle autonomously to follow a preceding vehicle while keeping a predetermined distance, and to determine a presence of a passenger in the vehicle. If the vehicle is operated autonomously to follow the preceding vehicle while carrying a passenger, the vehicle control system selects a longest distance from the preceding vehicle.

Abstract: An actuator is fixed to a predetermined stationary member. A plunger is supported by a casing of the actuator while being allowed to reciprocate linearly. The plunger has a joint on an exposed area thereof that is connected to a selector plate. A leading end of the plunger from the joint is also supported while being allowed to reciprocate by a supporting member formed integrally with a stationary member to which the casing is fixed.

Abstract: A control system for hybrid vehicles is provided to prevent reduction in drive force when propelling the vehicle backwardly while activating the engine. In the differential mechanism, a first rotary element is connected to an engine, a second rotary element is connected to a first motor, a third rotary element is connected to a second motor, and a fourth rotary element is connected to an output unit. A third motor is connected to the output unit. When propelling the vehicle backwardly while activating the engine, first motor and the second motor establish reaction torques against engine torque, and the third motor generates drive torque to propel the hybrid vehicle in the reverse direction.

Abstract: A vehicle includes an engine, a generator, and a motor. The engine burns a gaseous mixture in a cylinder to output a drive force. The generator generates electricity by being rotated by the drive force outputted from the engine. The motor drives by utilizing electric power generated by the generator or electric power that has accumulated in a battery charged with electric power generated by the generator, and the motor thereby outputs a vehicle-running drive force. A case covering the motor is of larger diameter than a case covering a differential. The motor has an output shaft outputting the vehicle-running drive force, and has the output shaft disposed parallel to a vehicle width direction. The generator is disposed such that part of the generator overlaps an upper section of the case covering the differential.

Abstract: A selectable one-way clutch to prevent a selector plate from being rotated undesirably by a drag torque even if an oil temperature is low. An actuator comprises a casing to which the plunger is inserted while being allowed to reciprocate therein, and a chamber holding a return spring for pushing the plunger out of the casing. The plunger is connected to the selector plate through the arm, and a through hole is formed on the chamber to introduce and discharge oil to/from the chamber.