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:
Jun. 22, 1993
Filed:
Jul. 30, 1991
Naohiko Inoue, Yokohama, JP;
Nissan Motor Co., Ltd., , JP;
Abstract
A brake control system for an automotive vehicle has an improved hydraulic circuit network which is capable of performing pressure boosting operation for a pressure supplied from a master cylinder, as well as anti-skid brake control operation and traction control operation. The system includes a valve device for selectively establishing and blocking fluid communication between master cylinder and wheel cylinder. The valve device is generally responsive to the fluid pressure supplied from the master cylinder to enter into pressure boosting mode in response to increase in the fluid pressure from the master cylinder across a predetermined value. An electronically operable boost control device cooperates with the valve device for varying pressure boosting magnitude depending upon vehicle driving condition. An electronically operable traction control device is also provided and cooperates with the boost control device for generating a braking force to decelerate a vehicle wheel irrespectively of manual operation state of brake system when wheel spinning is detected or predicted. The system exhibits high safety level by an enhanced fail-safe function.