A method of controlling an input clutch and an output clutch, wherein the input clutch couples to a power source, the output clutch couples to a load, and the input clutch couples to the output clutch via gears, includes controlling torque of the input clutch based on a torque of the output clutch or a lookup table that controls the torque of the output clutch. The method also includes adjusting the torque of the input clutch based on a slip speed of the input clutch and a slip speed of the output clutch.

A controller causes a clutch to transition from a half-engaged state to an engaged state when a difference in rotational velocity between input and output sides of the clutch falls within a predetermined range in the half-engaged state of the clutch. The controller executes a moving start control to increase an output rotational velocity of a prime mover and cause the clutch to transition to the engaged state when a predetermined first condition is satisfied in the half-engaged state of the clutch.

A basic clutch capacity calculating unit calculates a clutch capacity of the DCT applying an engine speed, a degree of throttle opening, and a front wheel vehicle speed to a map. The basic clutch capacity calculating unit further calculates the DCT basic clutch capacity by amending the basic clutch capacity based on an oil temperature and a water temperature. An NE converted value calculating unit calculates an NE converted value obtained by converting a vehicle speed into an engine speed with the front wheel vehicle speed and a DCT speed change stage as input parameters. A hunting detecting unit detects hunting by comparing the engine speed with the NE converted value when a throttle operation is detected. A DCT clutch capacity correcting unit makes decreasing correction of a DCT clutch capacity when hunting is detected for suppressing the hunting.

A method for calibrating engine clutch delivery torque of a hybrid vehicle includes: determining an engagement control amount of an engine clutch which connects an engine with a driving motor or disconnects the engine from the driving motor based on a difference between speeds of the engine and the driving motor; determining a current delivery torque corresponding to the engagement control amount of the engine clutch that controls the engine clutch to be in a lock-up state and a temperature of the engine clutch; extracting a previous delivery torque that corresponds to the engagement control amount that controls the engine clutch to be in the lock-up state and the temperature and is included in a map table; and applying a weighted value to each of the extracted previous delivery torque and the determined current delivery torque to calibrate the delivery torque included in the map table.

A basic clutch capacity calculating unit calculates a clutch capacity of the DCT applying an engine speed, a degree of throttle opening, and a front wheel vehicle speed to a map. The basic clutch capacity calculating unit further calculates the DCT basic clutch capacity by amending the basic clutch capacity based on an oil temperature and a water temperature. An NE converted value calculating unit calculates an NE converted value obtained by converting a vehicle speed into an engine speed with the front wheel vehicle speed and a DCT speed change stage as input parameters. A hunting detecting unit detects hunting by comparing the engine speed with the NE converted value when a throttle operation is detected. A DCT clutch capacity correcting unit makes decreasing correction of a DCT clutch capacity when hunting is detected for suppressing the hunting.

A method for calibrating engine clutch delivery torque of a hybrid vehicle includes: determining an engagement control amount of an engine clutch which connects an engine with a driving motor or disconnects the engine from the driving motor based on a difference between speeds of the engine and the driving motor; determining a current delivery torque corresponding to the engagement control amount of the engine clutch that controls the engine clutch to be in a lock-up state and a temperature of the engine clutch; extracting a previous delivery torque that corresponds to the engagement control amount that controls the engine clutch to be in the lock-up state and the temperature and is included in a map table; and applying a weighted value to each of the extracted previous delivery torque and the determined current delivery torque to calibrate the delivery torque included in the map table.

A starting clutch control device for an automatic transmission has a starting clutch controller. The starting control device controls a transmission torque capacity of a starting clutch interposed in a transmission path in which rotation of the power source is transmitted to wheels while shifting is underway by the automatic transmission. The starting clutch controller controls the transmission torque capacity of the starting clutch such that a rotation trajectory of the power source develops as desired in a low rotation speed range in which the transmission torque capacity control of the starting clutch is necessary. The starting clutch controller causes the transmission torque capacity of the starting clutch to change, when a shift of the automatic transmission occurs during the transmission torque capacity control by the starting clutch controller, in a direction in which the change in the rotation trajectory will occur corresponding to the shift.

A method for setting a clutch torque between an engine and a drive of a vehicle during a starting process of the vehicle includes increasing the clutch torque during a first phase, limiting the clutch torque to a first torque value during the first phase, and further increasing the clutch torque in a second phase after an engine rotational speed reaches a rotational speed limit.

A method of controlling an input clutch and an output clutch, wherein the input clutch couples to a power source, the output clutch couples to a load, and the input clutch couples to the output clutch via gears, includes controlling torque of the input clutch based on a torque of the output clutch or a lookup table that controls the torque of the output clutch. The method also includes adjusting the torque of the input clutch based on a slip speed of the input clutch and a slip speed of the output clutch.

A controller causes a clutch to transition from a half-engaged state to an engaged state when a difference in rotational velocity between input and output sides of the clutch falls within a predetermined range in the half-engaged state of the clutch. The controller executes a moving start control to increase an output rotational velocity of a prime mover and cause the clutch to transition to the engaged state when a predetermined first condition is satisfied in the half-engaged state of the clutch.