Wheel slip control system

Abstract

A wheel slip control system used for a vehicle includes a pressure source selector which selects one of the first pressure source providing a first pressure and a second pressure source providing a second pressure depending on the difference of the two pressures, a slip controller which adjusts the first pressure in response to a first adjustment signal or adjusts the second pressures in response to a second adjustment signal and thereafter operates to suppress slipping of the wheels including the driven wheels, a brake slip detector which produces a brake slip signal upon detection of a slip during braking operation, an acceleration slip detector which produces an acceleration slip signal upon detection of a slip during accelerating operation, and an electronic controller which provides the first adjustment signal to the slip controller based on the brake slip signal for the purpose of vehicle anti-skid control and provides the second adjustment signal to the slip controller based on the acceleration slip signal for the purpose of vehicle traction control. The wheel slip control system performs both of anti-skid control and traction control for a vehicle with a simple arrangement.