When an engagement-side clutch taking charge of rotation control in an upshift is the same as a rotation control clutch of a previous gear shift, it is determined that there is a likelihood that a thermal load of a clutch friction material will increase, and the thermal load of the clutch friction material is decreased by delaying gear shift start. By setting a delay time by which the gear shift start is delayed when an accelerator depression amount is small to be shorter than when the accelerator depression amount is large depending on the accelerator depression amount, a gear shift which is an upshift can be performed without unnecessary waiting.

A method for learning engine clutch delivery torque of a hybrid vehicle includes: determining, by a controller, whether power transference of a transmission transmitting output from an engine of the vehicle and a motor of the vehicle is interrupted; controlling, by the controller, a speed of the motor to be maintained at a first speed when the power transference of the transmission is interrupted; calculating, by the controller, a first delivery torque of an engine clutch that connects the engine with the motor or disconnects the engine from the motor, based on the first speed and a second speed of the motor which is generated after the engine clutch is engaged; controlling, by the controller, the speed of the motor to be maintained at the second speed by releasing the engine clutch after the first delivery torque is calculated; and calculating, by the controller, a second delivery torque of the engine clutch based on the second speed and a third speed of the motor which is generated after the engine clutch is engaged.

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.) executes lock rotation control in which the differential rotation is maintained at positive differential rotation, in the case where the control unit (18) switches the selectable one-way clutch (17) from the disengaged state to the engaged state.

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.) executes lock rotation control in which the differential rotation is maintained at positive differential rotation, in the case where the control unit (18) switches the selectable one-way clutch (17) from the disengaged state to the engaged state.

A method for learning engine clutch delivery torque of a hybrid vehicle includes: determining, by a controller, whether power transference of a transmission transmitting output from an engine of the vehicle and a motor of the vehicle is interrupted; controlling, by the controller, a speed of the motor to be maintained at a first speed when the power transference of the transmission is interrupted; calculating, by the controller, a first delivery torque of an engine clutch that connects the engine with the motor or disconnects the engine from the motor, based on the first speed and a second speed of the motor which is generated after the engine clutch is engaged; controlling, by the controller, the speed of the motor to be maintained at the second speed by releasing the engine clutch after the first delivery torque is calculated; and calculating, by the controller, a second delivery torque of the engine clutch based on the second speed and a third speed of the motor which is generated after the engine clutch is engaged.