Brake pressure modulator and system

摘要: A modulating pump is disclosed including a pumping member that initially operable by solenoid device in relatively long full-stroke condition to effect rapid pressure build-up of the fluid supplied load, being subsequently operated short stroke further load. main spring normally biases armature achieve operating condition, and when load reaches value cause return force be overcome, resilient abutment becomes desired condition. self commutating also disclosed. The included vehicle traction control system, as, for example, an anti-skid system automatically braking overrunning driven wheel relative another connected thereto differential mechanism.