Fluid-pressure and analogous brake systems – Pipeless valves
Patent
1984-12-11
1988-02-02
Caldwell, Sr., John W.
Fluid-pressure and analogous brake systems
Pipeless valves
303119, B60T 800
Patent
active
047225769
ABSTRACT:
A fail-safe system for an automotive anti-skid control system ensures that manual control of vehicle brakes is enabled if any system components should fail. The anti-skid control system employs actuators to control the brakes automatically, the actuators being powered by a vehicle battery. The power supply to the actuators is interrupted by the fail-safe system if malfunction of any system components is detected and the control signals for operating the actuators are held to a value such that the actuators are positioned in the brake pressure increase position. Specifically, the fail-safe system checks for open or short circuits in the actuators themselves, inaccuracy or failure of any of a plurality of wheel speed sensors, excessive or insufficient battery voltage, and malfunction of major system components such as a hydraulic pump used to expedite automatic control, signal processing units, etc. The particular type of malfunction may be recorded for reference during maintenance and repair.
REFERENCES:
patent: 2914359 (1959-11-01), Yarber
patent: 3398995 (1968-08-01), Martin
patent: 3503653 (1970-03-01), Davis et al.
patent: 3637264 (1972-01-01), Leiber et al.
patent: 3752536 (1973-08-01), Machek
patent: 3930688 (1976-01-01), Rau et al.
patent: 3938612 (1976-02-01), Boudeville et al.
patent: 3943345 (1976-03-01), Ando et al.
patent: 3985396 (1976-10-01), Kuwana et al.
patent: 3989063 (1976-11-01), Brouwers et al.
patent: 4009914 (1977-03-01), Sato et al.
patent: 4090739 (1978-05-01), Iio
patent: 4113321 (1978-09-01), Bleckmann
patent: 4267575 (1981-03-01), Bounds
patent: 4315213 (1982-02-01), Wolff
patent: 4384330 (1983-05-01), Matsuda et al.
patent: 4408290 (1983-10-01), Kubo et al.
patent: 4569560 (1986-02-01), Kubo
Caldwell Sr. John W.
Nissan Motor Company Limited
Oberley Alvin
LandOfFree
Fail-safe system in anti-skid brake control system for automotiv does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fail-safe system in anti-skid brake control system for automotiv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fail-safe system in anti-skid brake control system for automotiv will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1633425