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:
Apr. 18, 1995
Filed:
Aug. 11, 1994
Toru Iwata, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
An automotive traction control system comprises a master cylinder, an external brake fluid pressure source, a brake fluid pressure control actuator being applied commonly to an acceleration-slip control and a deceleration-slip control, a first switching valve for establishing and blocking a communication between the master cylinder and the pressure control actuator, a second switching valve for establishing and blocking a communication between the external brake fluid pressure source and the pressure control actuator, and a control unit for deriving a pressure reducing control time necessary to reduce the wheel cylinder pressure to a designated brake fluid pressure, based on a pressure intensifying control time, during the acceleration-slip control. The control unit is arranged for switching the second switching valve just after the pressure reducing control time has elapsed, and for switching the first switching valve and a pressure intensifying valve and a pressure reducing valve both included in the pressure control actuator with a predetermined time lag after shifting of the second switching valve, in a transient state transiting from the acceleration-slip control mode to the normal braking operational mode.