Abstract: A control system for hybrid vehicles to eliminate the shortage of drive force within the low-to-mid speed range in the hybrid mode. In a 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 the controller determines that the hybrid vehicle is propelled by the torque of the engine, the first motor and the second motor generate torques in a same direction as an engine torque to propel the vehicle in a forward direction, and the third motor generates a torque in the forward direction to propel the vehicle together with the engine torque.

Abstract: A selectable one-way clutch is provided. The selectable one-way clutch comprises a selector member rotated at a predetermined angle between an engagement position and a disengagement position, and an actuator that reciprocates linearly along a tangential line of the selector member to rotate the selector member to the engagement position and to the disengagement position. The actuator comprises an actuation member that is offset from the selector member in a direction along a rotational center axis of the selector member to actuate along the tangential line of the circumference of the selector member. The selectable one-way clutch further comprises an arm connecting the actuation member and the selector member to rotate the selector member by a linear motion of the actuation member.

Abstract: A hybrid vehicle includes: an engine; a first motor; an output member; a differential mechanism, the engine, the first motor, and the output member being coupled via the differential mechanism; a second motor configured to apply torque to the output member; and an engagement mechanism configured to stop rotation of an output shaft of the engine or rotation of a specified rotational member that is coupled to the output shaft of the engine. An electronic control unit is configured to (i) engage the engagement mechanism when the hybrid vehicle travels reversely by drive power of the second motor or drive power of the first motor and the second motor, and (ii) disengage the engagement mechanism when the hybrid vehicle travels forward by the drive power of the second motor or the drive power of the first motor and the second motor.

Abstract: A control system for a hybrid vehicle configured to prevent an undesirable engagement of the selectable one-way clutch is provided. In order to reduce a drag torque resulting from a cranking of an engine to bring the selectable one-way clutch into engagement mode, the control system raises a temperature of lubrication oil before carrying out the cranking of the engine if it is too low, and carries out the cranking of an engine by a motor after the temperature of the lubrication oil is raised to a level at which viscosity thereof is reduced.

Abstract: A control apparatus for controlling a hybrid vehicle having a planetary gear train including a first gear coupled to a first rotating electrical machine, a carrier coupled to an input shaft having an ejecting hole, the input shaft being coupled to an engine shaft of an engine via a torque limiting mechanism which allows the input shaft to skid against the engine shaft depending on a variation of torque between the input shaft and the engine shaft, and a second gear coupled to a drive shaft which is coupled to a second rotating electrical machine, and a rotation limiting mechanism which prevents the engine shaft from rotating in another direction, drives the first rotating electrical machine to output torque for rotating the input shaft in the another direction when the ejecting hole with the engine stopped does not extend in a predetermined direction in which the ejecting hole can eject oil to a mechanism portion of the planetary gear train which locates vertically above the input shaft.

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 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: A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level.

Abstract: A selectable one-way clutch includes an engagement mechanism. The engagement mechanism is configured to be switched between an engaged state and a disengaged state. The engaged state is a state in which relative rotation between a first and a second members in one of a positive rotational direction and a reverse rotational direction is restricted. The disengaged state is a state in which the relative rotation between the first member and the second member in both of the positive and the reverse rotational direction is permitted. The electronic control unit is configured to apply torque to the one of the first member or the second member by using a motor such that relative rotation in the other one of the positive or the reverse rotational direction is generated between the first member and the second member when the engagement mechanism is switched from the engaged state to the disengaged state.

Abstract: A fixation structure for a selectable one-way clutch that can prevent engagement delay and imperfect engagement of the selectable one way clutch is provided. The fixation structure comprises a ridge formed on a back face of the pocket plate to be splined to a casing. The ridge is situated radially inner side of a strut held in a pocket plate.

Abstract: A control system is for a vehicle (Ve), and the control system comprises an electronic control unit (18). The electronic control unit (18) is configured to (i) produce differential rotation by controlling a rotational speed of either a first clutch member (24) or a second clutch member (25) of a selectable one-way clutch (17) by a motor (2), and (ii) execute the following processes in an order of (1.) to (4.) in the case where the electronic control unit (18) switches the selectable one-way clutch (17) from a disengaged state to a engaged state: (1.) controlling the motor (2) such that the differential rotation becomes the negative differential rotation; (2.) switching the selectable one-way clutch (17) from a second state to a first state; (3.) controlling the motor (2) such that the differential rotation becomes the positive differential rotation; and (4.) engaging a part of a strut with a part of the second clutch member (25).

Abstract: A fixation structure for a selectable one-way clutch is provided. The fixation structure comprises: a stationary member in which the pocket plate is held coaxially; a projection formed on the pocket plate protruding radially outwardly; a spline groove formed in the stationary member to which the projection is inserted while keeping a predetermined clearance in a circumferential direction; and an elastic member that is interposed between the projection and the spline groove to push the projection in a direction that the strut held in an upper side of the pocket is moved toward the notch.

Abstract: A control system for a hybrid vehicle configured to prevent an undesirable engagement of the selectable one-way clutch is provided. In order to reduce a drag torque resulting from a cranking of an engine to bring the selectable one-way clutch into engagement mode, the control system raises a temperature of lubrication oil before carrying out the cranking of the engine if it is too low, and carries out the cranking of an engine by a motor after the temperature of the lubrication oil is raised to a level at which viscosity thereof is reduced.

Abstract: A power transmission device comprises an engine arranged on a shaft and a first motor. A second motor is arranged on a different shaft from the shaft on which the engine is arranged. A first differential mechanism has a sun gear to which the first motor is connected, a carrier to which the engine is connected, and a ring gear to which the second motor and a drive wheel are connected. A second differential mechanism has a first rotational element to which the first motor is connected, a second rotational element, and a third rotational element to which the engine is connected, and is arranged such that the first motor is located between the first differential mechanism and the second differential mechanism. A case houses the second differential mechanism. A brake mechanism is configured to restrict rotation of the second rotational element and is arranged in the case.

Abstract: A control system, for a vehicle (Ve), comprises an electronic control unit (18) and a selectable one-way clutch (17). The electronic control unit (18) is configured to produce differential rotation in the selectable one-way clutch (17) by controlling the rotational speed by a motor (2), the differential rotation including positive differential rotation and negative differential rotation, the positive differential rotation being the relative rotation in a direction in which the relative rotation is restricted in an engaged state of the selectable one-way clutch (17), and the negative differential rotation being the relative rotation in a direction in which the relative rotation is permitted in an engaged state of the selectable one-way clutch (17), wherein the electronic control unit (1.) sets a first state of the selectable one-way clutch (17), and (2.

Abstract: A selectable one-way clutch adapted to prevent an undesirable engagement is provided. The selectable one-way clutch comprises a drag increasing device that increases a drag of oil acting between the pocket plate and the selector plate against a force rotating the selector plate in a direction to bring the selectable one-way clutch into the engagement mode.

Abstract: A selectable one-way clutch is provided. The selectable one-way clutch is shifted between overrunning mode and engagement mode by rotating a selector plate interposed between a notch plate and a pocket plate. The selectable one-way clutch comprises: a plunger that is connected to the selector plate and that is reciprocated by the actuator; a thermally shrinkable stopper member that is fitted onto the plunger; and a stationary member to which the stopper member is brought into abutment by a reciprocating motion of the plunger.

Abstract: A selectable one-way clutch that can prevent unintentional rotation of a selector plate by a drag torque is provided. In the selectable one-way clutch, a selector plate having a first aperture for letting through a strut is interposed between a fixed plate and a rotary plate while being allowed to rotate between an engagement position and a disengagement position. The selectable one-way clutch comprises: a protector plate interposed between the rotary plate and the selector plate; and a second aperture formed on the protector plate to let through the strut when the selector plate is rotated to the engagement position.

Abstract: An SOWC configured to prevent an unintentional engagement is provided. A pawl comprises a strut that is pushed up toward a notch through an aperture of a selector plate, a stopper plate protruding laterally from a rear end side of the strut, and a first inclined face formed on the stopper plate to incline downwardly from the rear end side toward the leading end side of the strut. A side plate is formed along each long side of the aperture to protrude toward the pocket plate, and the second inclined face is formed on the side plate to be brought into contact to the first inclined face.

Abstract: A selectable one-way clutch to selectively enable torque transmission only in one direction and to interrupt torque transmission in both directions is provided. The selectable one-way clutch comprises: an oil passage that is formed in the selector plate, and that has a first opening situated at a lower level than the oil level and a second opening situated at a higher level than the oil level; and a closure that is formed on the pocket plate at a position to close the second opening at least partially when the selectable one-way clutch is in the overrunning mode, and to increase the opening area of the second opening when the selectable one-way clutch is in the engagement mode.