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:
Oct. 20, 2009
Filed:
Nov. 25, 2008
Joohang Lee, Yongin-si, KR;
Hongseop Kim, Ansan-si, KR;
Jinhee Lee, Seongnam-si, KR;
Wooyeol Kim, Gunpo-si, KR;
Joohang Lee, Yongin-si, KR;
Hongseop Kim, Ansan-si, KR;
Jinhee Lee, Seongnam-si, KR;
Wooyeol Kim, Gunpo-si, KR;
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Abstract
The parking brake system that restricts or releases a parking gear by using an operational force by hydraulic pressure that is generated or removed according to whether the engine works and an operational force by an electromagnetic force, includes a position valve that outputs operational pressure supplied from a hydraulic pressure supplier, to a pressure control valve corresponding to a shift range including a parking range, a parking releasing valve that outputs operational pressure supplied from position valve at the other shift ranges than a parking range, a main actuator that releases a parking gear when an operational force is transmitted from parking releasing valve and restricts the parking gear when the operational force is removed, and/or a sub-actuator that releases the parking gear by providing an operational force to main actuator only when an engine works.