Control device and control method for transmission mechanism, and control method for vehicle with engine

A control device for a single-clutch transmission mechanism of a vehicle with an engine including only one clutch and a transmission each of which is driven by an actuator, comprising:

• an engagement control module operatively coupled to the actuator to control the actuation of the only one clutch from a disengaged state to an engaged state;
• and
• a determination module operatively coupled to the actuator and operatively configured to determine whether or not to restrict engagement of the only one clutch based on information about a rotational speed on an upstream side of the only one clutch and information about a rotational speed on a downstream side of the only one clutch, wherein when the engagement control module performs a control to actuate the only one clutch to an engaged state, the engagement control module restricts engagement of the only one clutch if the determination module determines engagement of the only one clutch is to be restricted, wherein the determination module updates a clutch actuator position control map when the determination module determines engagement of the only one clutch is to be restricted.

A control device implemented control method for a single-clutch transmission mechanism for a vehicle with an engine including only one clutch and a transmission each of which is driven by an actuator, the control method comprising:

• a. performing an engagement control step to actuate the only one clutch from a disengaged state to an engaged state;
• and
• b. determining in a determination step whether or not to restrict engagement of the only one clutch based on information about a rotational speed on an upstream side of the only one clutch and information about a rotational speed on a downstream side of the only one clutch, wherein the engagement control step includes restricting engagement of the only one clutch if the determination step determines engagement of the only one clutch is to be restricted when the rotational speed on the downstream side of the only one clutch is higher by a prescribed value or more than the rotational speed on the upstream side of the only one clutch.

A control device implemented control method for a vehicle with an engine having a single-clutch transmission mechanism including a only one clutch and a transmission each of which is driven by an actuator, the control method comprising:

• a. performing an engagement control step to actuate the only one clutch from a disengaged state to an engaged state;
• and
• b. determining in a determination step whether or not to restrict engagement of the only one clutch based on information about a rotational speed on an upstream side of the only one clutch and information about a rotational speed on a downstream side of the only one clutch, wherein the engagement control step includes restricting engagement of the only one clutch if the determination step determines engagement of the only one clutch is to be restricted when the rotational speed on the downstream side of the only one clutch is higher by a prescribed value or more than the rotational speed on the upstream side of the only one clutch.