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:
Nov. 19, 1997
Jinsoo Lee, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
Disclosed is a hydraulic control system including a hydraulic fluid source; line pressure control means for regulating hydraulic pressure supplied from the fluid source to line pressure; reducing pressure controller for reducing hydraulic pressure from the line pressure control means; range controller for selectively supplying hydraulic pressure from the line pressure controller; shift controller for supplying hydraulic pressure; hydraulic pressure controller for converting hydraulic pressure to operational pressure; and hydraulic pressure distributer for determining a hydraulic flow path according to the hydraulic pressure from the shift controller; wherein the hydraulic pressure distributer includes an end clutch valve supplying operational pressure to an end clutch; a low-reverse brake valve supplying operational pressure to a low-reverse brake; a first rear clutch valve supplying operational pressure to a rear clutch; a second rear clutch valve supplying hydraulic pressure to the first rear clutch valve; a 1-2 shift valve supplying hydraulic pressure to friction elements operating when 1-2 shifting; and a 2-3/4-3 shift valve supplying hydraulic pressure to friction elements operating when 2-3 and 4-3 shifting.