Patent ID: 7328955

Claim:
A control device for a four-wheel drive vehicle comprising: an electrically-driven parking brake control unit for actuating electrically-driven parking brakes provided to the rear wheels of the vehicle; a front-and-rear driving force distribution control unit for controlling a clutch unit provided between a front shaft and a rear shaft to variably control the driving force distribution between the front and rear wheels, wherein the front-and-rear driving force distribution control unit controls the clutch unit so that the front shaft and the rear shaft are directly coupled to each other when the electrically-driven parking brake control unit actuates the electrically-driven parking brakes; and a brake control unit for controlling actuation of a main brake other than the electrically-driven parking brakes, wherein the brake control unit actuates the electrically-driven parking brakes as a substitute for the main brake when abnormality of the main brake is detected.