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:
Dec. 28, 1993
Filed:
Apr. 17, 1992
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A brake control system for automotive vehicles, comprises a master cylinder, a wheel cylinder, an external hydraulic pressure source for generating an external hydraulic pressure, an electronically controlled hydraulic pressure control valve connected to the external hydraulic pressure source, for converting the external hydraulic pressure to a control pressure, a hydraulic pressure multiplier unit connected to the hydraulic pressure control valve for generating a wheel-cylinder pressure higher than the master-cylinder pressure by multiplying the control pressure, and a spool biasing force restricting mechanism for restricting the magnitude of a spool biasing force created by the master-cylinder pressure to a designated upper limit only when the master-cylinder pressure exceeds a predetermined pressure level sufficient to provide a maximum wheel-cylinder pressure.