| 摘要 |
PURPOSE: To improve controllability in anti-lock control by determining the difference of pressure between right and left wheel brakes to perform control another side wheel brake so as to be reduced when the difference exceeds a target value determined by a given method. CONSTITUTION: Pressure, adjusted through an normal brake valve 1 operated by the leg force 2 of a driver and an accumulator pressure source 3, is supplied to the brakes of wheels 5a and 5b via brake pressure control valve valves 4a and 4b, and signals VR and VL, in accordance with the speeds of right and left wheels at the time of this braking, is applied to an evaluation circuit 6. That, which is a high-pressure wheel out of the right and left wheels, is detected by a block 7, to determine a target valueΔPsoll by respective electronic devices 9a and 9b from the different valueΔPist and the brake pressure signals PR and PL of the respective wheels. The respective target valuesΔPsoll and the different valueΔPist are compared by comparators 8a and 8b to judge wheel locking from these compared results and the signals VR and VL, so as to control the respective control valves 4a and 4b.
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