A first engagement member includes a first meshing portion and rotates integrally with a first shaft. A second engagement member includes a second meshing portion configured to mesh with the first meshing portion and rotates integrally with a second shaft. An electric clutch device drives the first engagement member via a pressing member that extends and contracts in response to drive of a clutch actuator. When the electric clutch device is to be engaged, the first shaft command computation unit sets the first shaft rotation speed command value to be smaller than the rotation speed of the second shaft. Further, after the rotation speed of the first shaft matches the first shaft rotation speed command value, the first shaft command computation unit sets the first shaft rotation speed command value to be gradually closer to the rotation speed of the second shaft.

A clutch is controlled to increase torque capacity of the clutch when fluctuations in torsional torque generated in a power transmission route between the clutch and a drive wheel are larger than a specified value during deceleration traveling. Accordingly, engine brake whose magnitude corresponds to an increased amount of the torque capacity of the clutch is actuated. Therefore, the fluctuations in the torsional torque can be suppressed by the engine brake.

A method and an open-loop and closed-loop control device for compensating for a clutch torque of a separating clutch located between an internal combustion engine and an electric machine in a hybrid drive of a motor vehicle. The compensation takes into consideration the rotational speed of the electric machine. The rotational speed of the electric machine impacts clutch torque. A compensation factor is calculated, and increases or decreases the necessary clutch torque, causing a corresponding actuation of an actuator to achieve the necessary clutch torque.

A clutch control method for a hybrid vehicle with a DCT is provided. The method includes determining an energy-saving possible period based on a selection state of shifting ranges, operation states of an accelerator pedal and a brake pedal, and the gradient of a road on which the vehicle is driven. An operation current is set for maintaining a clutch, which is configured to engage the first gear, engaged as 0 A in response to determining that a current state of the vehicle is in the energy-saving possible period.

A first engagement member rotates integrally with a first shaft. A second engagement member rotates integrally with a second shaft. An electric clutch device drives the first engagement member with a pressing member that extends and contracts in response to drive of the clutch actuator. The drive control unit performs a position control to control the clutch actuator, such that a drive amount of the first engagement member becomes a target stroke amount, when the first engagement member and the second engagement member are separated from each other and performs a pressing force control to control the clutch actuator, such that the pressing force between the first engagement member and the second engagement member becomes a target pressing force, when the first engagement member and the second engagement member are engaged with each other.

A method and an open-loop and closed-loop control device for compensating for a clutch torque of a separating clutch located between an internal combustion engine and an electric machine in a hybrid drive of a motor vehicle. The compensation takes into consideration the rotational speed of the electric machine. The rotational speed of the electric machine impacts clutch torque. A compensation factor is calculated, and increases or decreases the necessary clutch torque, causing a corresponding actuation of an actuator to achieve the necessary clutch torque.

A first engagement member rotates integrally with a first shaft. A second engagement member rotates integrally with a second shaft. An electric clutch device drives the first engagement member with a pressing member that extends and contracts in response to drive of the clutch actuator. The drive control unit performs a position control to control the clutch actuator, such that a drive amount of the first engagement member becomes a target stroke amount, when the first engagement member and the second engagement member are separated from each other and performs a pressing force control to control the clutch actuator, such that the pressing force between the first engagement member and the second engagement member becomes a target pressing force, when the first engagement member and the second engagement member are engaged with each other.

A first engagement member includes a first meshing portion and rotates integrally with a first shaft. A second engagement member includes a second meshing portion configured to mesh with the first meshing portion and rotates integrally with a second shaft. An electric clutch device drives the first engagement member via a pressing member that extends and contracts in response to drive of a clutch actuator. When the electric clutch device is to be engaged, the first shaft command computation unit sets the first shaft rotation speed command value to be smaller than the rotation speed of the second shaft. Further, after the rotation speed of the first shaft matches the first shaft rotation speed command value, the first shaft command computation unit sets the first shaft rotation speed command value to be gradually closer to the rotation speed of the second shaft.

Embodiments of a parking brake and anti-theft apparatus for a vented disc brake system are described herein. Such embodiments may include a brake assembly, an actuator and a rocker or a locking arm. The brake assembly by include a first and second rotor plates separated by spacers and slots. The rocker and locking arm may include pawls extending from an edge, and may be positioned adjacent to a circumference of the rotor plates, aligned between the rotor plates. The actuator may move the rocker and/or locking arm between locked an unlocked positions such that, in the locked configuration, the pawls are inserted into the slots, and in the unlocked configuration, the pawls are disposed outside the slots.

An actuator includes a controller, a motor and a sensor device. The controller includes a housing, and the motor includes a rotor, and the rotor includes a rotating shaft. The motor is mounted on the outside of the housing, and the sensor device includes a magnet and a sensor, the magnet is mounted on the rotating shaft of the motor, and the sensor is mounted inside the housing. The actuator has a good waterproof performance and anti-interference ability. This disclosure also relates to an electronic clutch system having the actuator.