Invention Grant
- Patent Title: Hydraulic control system of eight-speed automatic transmission for a vehicle
- Patent Title (中): 车速八速自动变速器液压控制系统
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Application No.: US11957701Application Date: 2007-12-17
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Publication No.: US07846053B2Publication Date: 2010-12-07
- Inventor: Jae Hee Hong
- Applicant: Jae Hee Hong
- Applicant Address: KR Seoul
- Assignee: Hyundai Motor Company
- Current Assignee: Hyundai Motor Company
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2007-0108709 20071029
- Main IPC: F16H31/00
- IPC: F16H31/00
Abstract:
A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by employing pressure control valves and pressure switching valves.
Public/Granted literature
- US20090107796A1 HYDRAULIC CONTROL SYSTEM OF EIGHT-SPEED AUTOMATIC TRANSMISSION FOR A VEHICLE Public/Granted day:2009-04-30
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