Brakes – Operators – Speed-responsive
Patent
1981-10-26
1984-04-10
Reger, Duane A.
Brakes
Operators
Speed-responsive
303112, B60T 804
Patent
active
044415893
ABSTRACT:
A controlled wheel braking system for vehicles wherein fluid pressure on the wheel brake cylinder is relieved at the moment of wheel lock up so as to prohibit skidding and at the same time optimize the braking of the vehicle. The system includes a control valve positioned in the brake fluid line between the master cylinder and the wheel brake cylinder which is responsive to imminent wheel lock up. The control valve senses wheel lock up and upon sensing bleeds brake fluid from the wheel brake cylinder to unlock the wheel thereby preventing skidding. Upon sensing the unlocking of the wheel the bled brake fluid is again fed to the wheel brake cylinder to optimize the braking of the vehicle. If the wheel again locks up the cycle is repeated thereby providing a pumping action on the brakes.
REFERENCES:
patent: 3369635 (1968-02-01), Davis
patent: 4265343 (1981-05-01), Stevens
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