A method for controlling an automated starter clutch (4) in a drive train of a motor vehicle (1), which drive train has a transmission (3). In at least one first mode, the starter clutch (4) is operated automatically and is transitioned in an event-controlled manner into a second mode, in which the starter clutch (4) can be operated in such a way that upon actuation of the starter clutch (4), at least one jolt-like movement of the motor vehicle (1) is caused. In the second mode, the actuation of the starter clutch (4) is initiated and controlled depending upon operation of an accelerator pedal (13).

A utility vehicle includes: a pair of front wheels; a pair of rear wheels; at least one front wheel power source configured to drive the front wheels and not to drive the rear wheels; at least one rear wheel power source configured to drive the rear wheels and not to drive the front wheels; and a controller that controls the front wheel power source and the rear wheel power source. Upon receiving a predetermined two-wheel drive command, the controller brings the front wheel power source into a non-operative state while allowing the rear wheel power source to drive the rear wheels. Upon receiving a predetermined four-wheel drive command, the controller brings the front wheel power source into operation while allowing the rear wheel power source to drive the rear wheels.

A powertrain for a vehicle is disclosed that includes an electromagnetic driving unit (10) and a transmission module (20) having a controllable clutch (21) the powertrain further includes a control system to control the electromagnetic driving unit and to control the clutch. The controller has a safety operational mode wherein it controls an engagement of the controllable clutch with a feedback loop in which a desired extent of engagement is positively correlated to a difference between an extent of slip as indicated by the slip indicator and a positive reference value for the extent of slip, wherein the slip indicator indicates the extent of slip with a sign that is the product of the sign of the difference between the rotational speed of the input shaft and a rotational speed of the output shaft and a desired driving torque sign.

The disclosure is concerned with control system and control method, for a vehicle including a driving power source, drive wheels, a first clutch, and a second clutch. An electronic control unit, which is included in the control system, places the first clutch in a half-engaged state with a predetermined clutch torque capacity, when the vehicle is started, performs start control in a first mode using the second clutch, by gradually increasing a clutch torque capacity of the second clutch from a released state, and switches the start control from the first mode using the second clutch to a second mode using the first clutch, when the increased clutch torque capacity of the second clutch reaches the clutch torque capacity of the first clutch.

A method for controlling an engine clutch of an electrified vehicle is provided to easily engage and disengage an engine clutch by applying a launch engagement control method that utilizes power from both of an engine and a motor in accordance with the variation of the number of revolutions per hour of the engine and the usage rate of electrical energy by a motor to engage the engine clutch in a terrain mode and by applying a control method that disengages an engine clutch early in accordance with the number of revolutions per hour of the engine and the shaft torque of the engine clutch in the terrain mode.

A clutch control method for a hybrid vehicle with a DCT of the present invention is provided. The method includes checking whether a current shift range is a D-range and determining a gradient of a current driving road and driver's vehicle stop requirement. In response to determining that the current shift range is the D-range, the gradient of the road is not a gradient that requires uphill driving, and there is driver's vehicle stop requirement, a controller reduces an operation current supplied to a clutch actuator of a clutch for transmitting power to a first gear to a regulation current. The regulation current is set based on an operation of the vehicle by the driver when the vehicle is restarted after the current reduction.

A powertrain for a vehicle is disclosed that includes an electromagnetic driving unit (10) and a transmission module (20) comprising a controllable clutch (21) the powertrain further includes a control system to control the electromagnetic driving unit and to control the clutch. The controller has a safety operational mode wherein it controls an engagement of the controllable clutch with a feedback loop in which a desired extent of engagement is positively correlated to a difference between an extent of slip as indicated by the slip indicator and a positive reference value for said extent of slip, wherein the slip indicator indicates the extent of slip with a sign that is the product of the sign of the difference between the rotational speed of the input shaft and a rotational speed of the output shaft and a desired driving torque sign.

A control system for controlling movements of an end effector connected to a clutch output of at least two magnetorheological (MR) fluid clutch apparatus, the control system comprises a clutch driver configured to drive the at least two MR fluid clutch apparatuses between at least a controlled slippage mode, in which slippage between a clutch input and the clutch output of the MR fluid clutch apparatuses varies, and a combined mode, in which said slippage between the clutch input and the clutch output is maintained below a given threshold simultaneously for both of the MR fluid clutch apparatuses, the two clutch outputs resisting movement of the end effector in the same direction. A motor driver is configured to control a motor output of at least one motor, the motor output coupled to at least one clutch input. A mode selector module is configured to receive signals representative of at least one movement parameter of the end effector, the mode selector module selecting a mode between at least the controlled slippage mode and the combined mode of the clutch driver based on the signals, and switching the selected mode based on the signals. A movement controller controls the clutch driver and the motor driver to displace the end effector based on at least one of the selected mode and on commanded movements of the end effector for the end effector to achieve the commanded movements.

The disclosure is concerned with control system and control method, for a vehicle including a driving power source, drive wheels, a first clutch, and a second clutch. An electronic control unit, which is included in the control system, places the first clutch in a half-engaged state with a predetermined clutch torque capacity, when the vehicle is started, performs start control in a first mode using the second clutch, by gradually increasing a clutch torque capacity of the second clutch from a released state, and switches the start control from the first mode using the second clutch to a second mode using the first clutch, when the increased clutch torque capacity of the second clutch reaches the clutch torque capacity of the first clutch.

A utility vehicle includes: a pair of front wheels; a pair of rear wheels; at least one front wheel power source configured to drive the front wheels and not to drive the rear wheels; at least one rear wheel power source configured to drive the rear wheels and not to drive the front wheels; and a controller that controls the front wheel power source and the rear wheel power source. Upon receiving a predetermined two-wheel drive command, the controller brings the front wheel power source into a non-operative state while allowing the rear wheel power source to drive the rear wheels. Upon receiving a predetermined four-wheel drive command, the controller brings the front wheel power source into operation while allowing the rear wheel power source to drive the rear wheels.