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:
Sep. 15, 1992
Filed:
Mar. 19, 1991
James F Quinn, Troy, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An integrated anti-lock braking (ABS)/traction control (TC) braking system for a vehicle is provided including in a preferred embodiment a controller cognizant of the rotational condition of a vehicle wheel for signalling the system to an ABS or TC mode. A master cylinder delivers pressurized fluid to the wheel brake. An actuator frame with a bore is fluidly connected with the master cylinder and the wheel brake generally along a first end. A first fluid network connects the master cylinder with the wheel brake. A reservoir fluidly connected with the bore and the brake for selective receipt of fluid from the bore. A second fluid network connects the reservoir and the ends of the bore with one another and fluidly connects the reservoir with the wheel brake. A check valve preventing flow from the master cylinder to the brake via the first fluid network. A valve responsive to the controller isolates the reservoir from the second fluid network when the integration is in the normal operation or the TC mode. A valve responsive to the controller which prevents fluid communication through the second fluid network when the integration is in an ABS mode. A valve responsive to the controller which prevents fluid communication between the master cylinder and the bore when the integration is in a TC mode. A piston is slidably mounted in the bore with a head separating the first and second ends of the bore.