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:
Nov. 09, 1999
Filed:
Aug. 27, 1997
Donghoon Park, Youngin-kun, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
The hydraulic control system includes a pressure regulating valve regulating hydraulic pressure generated by a hydraulic pump, and a pressure control valve controlling the regulated hydraulic pressure. A hydraulic pressure distributing valve set distributes the controlled regulated hydraulic pressure to a plurality of friction elements, and a shift control valve controls operation of the hydraulic pressure distributing valve set by controlling distribution of an application hydraulic pressure to the hydraulic pressure distributing valve set. A creep control unit selectively prevents the vehicle from creeping without depressing a brake pedal by supplying the application hydraulic pressure from the shift control valve to at least one of the friction elements. To this end, the creep control unit includes a creep control valve and a solenoid valve.