Patent ID: 8298121

Claim:
A lock-up clutch control apparatus for a vehicle whereupon a motive power source, an automatic transmission, a fluid power transmission apparatus provided between the motive power source and the automatic transmission, and a lock-up clutch directly connecting an input side and an output side of the fluid power transmission apparatus are mounted, the lock-up clutch control apparatus comprising: a control unit for performing deceleration lock-up control to control engagement of the lock-up clutch upon deceleration of the vehicle and for outputting a lock-up differential pressure instruction value; and a lock-up differential pressure control portion for controlling a lock-up differential pressure of the lock-up clutch in accordance with the lock-up differential pressure instruction value by using a line pressure of a hydraulic control system including hydraulic control of the automatic transmission as a source pressure, wherein the control unit corrects the lock-up differential pressure instruction value to a low side when a condition of rising of the source pressure of the lock-up differential pressure control portion is satisfied during the deceleration lock-up control.