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. 16, 1997
Filed:
May. 01, 1996
Applicant:
Inventor:
Jaeduk Jang, Kyungki-do, KR;
Assignee:
Hyundai Motor Company, , KR;
Primary Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
477130 ; 477131 ; 477116 ; 477143 ; 477144 ;
Abstract
A hydraulic control system for an automatic transmission includes a hydraulic pump, a pressure regulating valve, a solenoid supply valve, a manual valve, a torque control regulator valve, a control switching valve, a N-D control valve, a 1-2 shift valve, a 2-3 shift valve, a 3-4 shift valve, and a N-R control valve. Accumulators are disposed in conduits to first and seventh friction members for reducing shift shock caused by line pressure and drive pressure fed from fourth and second clutch valves.