Control system for vehicle

A control system for a vehicle,

• the control system comprising:
• a selectable one-way clutch including a first clutch member, a second clutch member, a strut, and a switching mechanism,
• the first clutch member and the second clutch member configured to rotate relatively to each other,
• at least a part of the strut configured to be operated such that the part of the strut is projected from a first clutch member side to a second clutch member side,
• the switching mechanism configured to selectively set a first state and a second state, the first state being a state that the switching mechanism permits a projection of the strut to the second clutch member side, and the second state being a state that the switching mechanism inhibits the projection of the strut,
• the selectable one-way clutch configured to be switched between an engaged state and a disengaged state, the engaged state being a state that restricts a relative rotation in either a positive rotational direction or a reverse rotational direction in the first state with engaging the part of the strut with a part of the second clutch member, and the disengaged state being a state that permits the relative rotation in both of the positive rotational direction and the reverse rotational direction in the second state without projecting the strut to the second clutch member side;
• a motor configured to control a rotational speed of either a first rotary member or a second rotary member;
• and
• an electronic control unit configured to
• (i) produce differential rotation by controlling the rotational speed by the motor, 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 the engaged state, and the negative differential rotation being the relative rotation in a direction in which the relative rotation is permitted in the engaged state, and
• (ii) (1) set the first state, and (2) execute lock rotation control in which the differential rotation is maintained at a specified positive value of the positive differential rotation, when the electronic control unit switches the selectable one-way clutch from the disengaged state to the engaged state.