A vehicle includes a clutch to couple a motor and transmission, and a controller that, in response to a regenerative braking request and a temperature being within a first range, partially capacitizes the clutch for regenerative torque transfer therethrough with slip, and in response to another regenerative braking request and the temperature being within a second range less than the first, fully capacitizes the clutch prior to regenerative torque transfer therethough to preclude slip.

A vehicle includes a clutch to couple a motor and transmission, and a controller that, in response to a regenerative braking request and a temperature being within a first range, partially capacitizes the clutch for regenerative torque transfer therethrough with slip, and in response to another regenerative braking request and the temperature being within a second range less than the first, fully capacitizes the clutch prior to regenerative torque transfer therethough to preclude slip.

The objective of the present invention is to provide a clutch disengagement control mechanism that is for a mechanical automatic transmission and that can perform clutch disengagement control at an optimal timing during both ordinary driving and low-speed driving at the verge of stopping. To this end, the present invention is provided with a vehicle speed measurement device (3 and 6, or 4), a brake-operation-speed measurement device (8), a clutch operation device (9), and a control device (10). The control device (10) has: a function for generating a control signal that disengages the clutch from the clutch operation device (9) when the brake operation speed is at least a second threshold (B) in the case that the vehicle speed (X) is at least a first threshold (A); and a function for generating a control signal that disengages the clutch from the clutch operation device (9) when the brake operation speed is at least a third threshold (C) in the case that the vehicle speed (X) is less than the first threshold (A).

A method of controlling a selectable one way clutch operable to selectively couple a shaft to a housing of a transmission includes determining if an electric motor is currently operating, and if the selectable one way clutch is currently engaged to couple the shaft to the housing. It is further determined whether or not wheel torque of at least one wheel is currently being actively managed by at least one vehicle control system. When the electric motor is operating with the selectable one way clutch engaged, and wheel torque of at least one wheel of the hybrid vehicle is currently being actively managed by at least one vehicle control system, then selectable one way clutch is disengaged to release the shaft from the housing and allow rotation of the shaft relative to the housing.