Patents Examined by Ha Hu
  • Hydraulic control system for automatic transmission
    Patent number: 6609991
    Abstract: A hydraulic control system in which hydraulic pressure generated pressure generated by an oil pump is supplied to a pressure/damper clutch controller, a pressure reducer, and a shift controller, wherein the pressure reduced by the pressure reducer and the hydraulic pressure supplied as a result of port conversion of the sift controller are supplied to the hydraulic pressure controller, and hydraulic pressure controlled by the hydraulic pressure controller is supplied to a hydraulic pressure distributor and directly to some friction elements.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: August 26, 2003
    Assignee: Hyundai Motor Company
    Inventor: Jae-Duk Jang