66448 ⎘
Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force; Electromagnetic valves specially adapted for anti-lock brake and traction control systems Valves using piezo-electric elements