A vehicle transmission apparatus having a starting engagement friction element, which has friction plates and a hydraulic servo including a piston that is moved according to a supplied oil pressure to press the friction plates, which is controlled to be engaged when a vehicle is started by using at least a driving force of the internal combustion engine, and which transfers creep torque. A control device capable of receiving an accelerator operation amount signal and capable of outputting a command value that controls the oil pressure. The control device executes temporary increase control of temporarily increasing the command value, when the accelerator operation amount signal is turned on from a state where the accelerator operation amount signal is off and the command value is output so that the starting engagement friction element transfers the creep 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 method of setting a clutch control reference value may make it possible to more accurately learn the VKP of a hydraulic multi-plate clutch controlled by a solenoid valve, improving the accuracy of clutch control, and furthermore, to improve the quality of shifting a vehicle by the precise control of a transmission provided with such a clutch.

A method of setting a clutch control reference value may make it possible to more accurately learn the VKP of a hydraulic multi-plate clutch controlled by a solenoid valve, improving the accuracy of clutch control, and furthermore, to improve the quality of shifting a vehicle by the precise control of a transmission provided with such a clutch.

This clutch control device includes an engine (13), a transmission gear (21), a clutch device (26), a clutch actuator (50), a control unit (60), a clutch operator (4b), and a clutch operation amount sensor (4c), wherein the control unit (60) is configured to enable intervention of a manual clutch operation according to the clutch operator (4b) during automatic control of the clutch device (26) according to the clutch actuator (50), and the control unit (60) is configured to set a control target value of a clutch capacity to a connection lower limit target value (Px) acquired by changing an operation target value (Pv) corresponding to an amount of operation of the clutch operator (4b) to a clutch disconnection side in a case in which the amount of operation of the clutch operator (4b) based on an output value of the clutch operation amount sensor (4c) reaches a predetermined value (θ2) set in advance at a time of performing a clutch disconnection operation through the intervention of the manual clutch operation.

This clutch control device includes an engine (13), a transmission gear (21), a clutch device (26), a clutch actuator (50), a control unit (60), a clutch operator (4b), and a clutch operation amount sensor (4c), wherein the control unit (60) is configured to enable intervention of a manual clutch operation according to the clutch operator (4b) during automatic control of the clutch device (26) according to the clutch actuator (50), and the control unit (60) is configured to set a control target value of a clutch capacity to a connection lower limit target value (Px) acquired by changing an operation target value (Pv) corresponding to an amount of operation of the clutch operator (4b) to a clutch disconnection side in a case in which the amount of operation of the clutch operator (4b) based on an output value of the clutch operation amount sensor (4c) reaches a predetermined value (2) set in advance at a time of performing a clutch disconnection operation through the intervention of the manual clutch operation.

A clutch control device includes a clutch device that disconnects and connects a power transmission between an engine and a gearbox, a clutch actuator that drives the clutch device and changes a clutch capacity, an ECU that calculates a control target value of the clutch capacity, a clutch lever that manually operates the clutch device, and a clutch lever operation amount sensor that converts an operation amount of the clutch lever into an electrical signal, wherein the ECU calculates a clutch operation speed on the basis of the operation amount detected by the clutch lever operation amount sensor, and changes a disconnection and connection speed of the clutch device according to the clutch operation speed.

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.

The present disclosure relates to a technique for improving durability of a clutch and shifting stability. The present disclosure provides a method of controlling a clutch of an automated manual transmission (AMT) vehicle, which reduces a micro-slip control time in order to improve durability of the clutch by performing a full-lock control of the clutch after slip control for learning a clutch characteristic curve. Additionally, the method shortens time to open the clutch for a subsequent shifting by predicting the time when a shift restarts after the full-lock control and by resuming the micro-slip control.

A clutch control device includes a clutch device that disconnects and connects a power transmission between an engine and a gearbox, a clutch actuator that drives the clutch device and changes a clutch capacity, an ECU that calculates a control target value of the clutch capacity, a clutch lever that manually operates the clutch device, and a clutch lever operation amount sensor that converts an operation amount of the clutch lever into an electrical signal, wherein the ECU calculates a clutch operation speed on the basis of the operation amount detected by the clutch lever operation amount sensor, and changes a disconnection and connection speed of the clutch device according to the clutch operation speed.