| 摘要 |
A control system for a four-wheel drive vehicle for automatically changing the transmission torque to rear wheels has a fluid pressure controlled friction clutch (22) which is in partial engagement state for ordinary driving conditions and which transmits the power of the engine to the rear wheels, so that, when the vehicle turns a corner, the friction clutch slips to allow the rear wheels to rotate slower than the front wheels. A load sensor (45) and a slip detecting device (42, 43) produce control signals. A control circuit (46) responds to the control signals to increase the engagement of the friction clutch (22) to provide adequate four-wheel driving. |
