The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 1993
Filed:
Mar. 09, 1992
Timothy A Haerr, Enon, OH (US);
Donald L Parker, Middletown, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
Anti-lock/traction control braking system for a vehicle is provided which in a preferred embodiment includes a master cylinder, a brake, a controller providing a signal when a wheel condition is within preset parameters, an isolating value to separate the brake from the master cylinder means when the braking system goes into an anti-lock braking or traction control mode of operation, an anti-lock braking actuator including a bore fluidly connecting with the brake and having a piston reciprocally mounted within and a first motor responsive to a signal given by the controller for powering the anti-lock braking piston. A traction control actuator is also provided having fluid connections with the master cylinder and the anti-lock braking actuator. The traction control actuator has at least one piston reciprocally mounted within a bore. Upon actuation of the traction control the wheel brake is pressurized by the traction control actuator and thereafter traction control modulation of the wheel brake is accomplished by reciprocal movement of the ABS piston within the ABS actuator.