| 摘要 |
<p>A vehicle braking system includes: a master cylinder (20) which is connected to a brake circuit including two brake actuators (11, 17) associated with different wheels of the vehicle; control means (23, 31) which is associated with one of said wheels and senses changes in velocity of that wheel, said control means (23, 31) acting to reduce pressure of fluid in the brake circuit when the wheel deceleration increases above a first predetermined value; and a proportioning valve (34) which at a predetermined pressure in the brake circuit will increase the ratio of the rates at which pressure is increased to the actuators (11, 17) associated with said one and the other wheel respectively, actuator means (60) being provided to control the proportioning valve (34) to reduce the pressure applied to the actuator (17) associated with said other wheel, when said other wheel locks or is liable to lock.</p> |
