LOCK-UP-CLUTCH CONTROL DEVICE FOR VEHICLE

DRIVE May 17, 2017
Source
The present invention reduces the occurrence of a shock when depressing and operating the accelerator from a state of coasting. An engine-equipped vehicle provided with a torque converter (4) comprising a lock-up clutch (3) between the engine (1) and a continuously variable transmission (6), the engine-equipped vehicle being further provided with a fuel cutoff control unit (11 a) and a CVT control unit (12). The fuel cutoff control unit (11 a) prevents fuel injection to the engine (1) while in a coasting state with the driver's foot away from the accelerator, and restarts the fuel injection on the basis of a fuel recovery permission. The CVT control unit (12) carries out a cooperative control of a lock-up release control for reducing the clutch engagement capacity of the lock-up clutch (3) and a transmission control for shifting the transmission. Then, if there is an accelerator depression operation while coasting with the lock-up clutch (3) in an engaged state, the lock-up release timing and the shift timing are offset from one another.

Discussion in the ATmosphere

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