Braking force distribution control device with ABS for motor vehicle

摘要

The brake control for the vehicle reduces the rear wheel brake pressure when set conditions are satisfied; when the wheel slip of the rear wheels exceeds that of the front wheels by a set value, with the vehicle retardation above a set value. A hydraulic (oil) circuit (70) is designed to provide ABS for suppressing any wheel-slip during braking, by increasing or reducing the brake oil pressure, with overall control via an electronic control unit (60). This brake pressure control for the rear wheels is inhibited if the transmission is set for all wheel drive, irrespective of the wheel slip conditions. An alternate control mode can be used by raising the reference values for rear brake pressure reduction when the all wheel drive is selected. During all wheel drive a locking control is applied to the central differential if wheel slip occurs.