Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid controlled mechanical clutch or brake
Patent
1997-08-28
1999-04-20
Wright, Dirk
Planetary gear transmission systems or components
Fluid drive or control of planetary gearing
Fluid controlled mechanical clutch or brake
477116, 477117, 477158, 475120, F16H 6100
Patent
active
058953345
ABSTRACT:
The present invention provides a hydraulic control system for automatic transmissions, which includes line pressure control mechanism for regulating hydraulic pressure generated in an oil pump to a line pressure level, damper clutch control mechanism for receiving the line pressure to control a damper clutch, shift control mechanism for receiving the line pressure and supplying the same according to each shift mode, hydraulic pressure distributing meachanism for receiving hydraulic pressure from the shift control mechanism and supplying the same to a plurality of friction elements, and hydraulic pressure control mechanism for regulating the line pressure and supplying the same to the hydraulic pressure distributing mechanism to correspond to each shift mode wherein abrupt pressure exhaust preventing mechanism is provided which slows exhaust of hydraulic pressure when shifting from drive D or reverse R ranges to a neutral N range.
REFERENCES:
patent: 4982622 (1991-01-01), Yamamoto et al.
patent: 5094128 (1992-03-01), Kamada
patent: 5367922 (1994-11-01), Jan
patent: 5417626 (1995-05-01), Gierer
patent: 5536216 (1996-07-01), Jang
patent: 5558599 (1996-09-01), Tsukamoto et al.
patent: 5643123 (1997-07-01), Jang et al.
patent: 5655993 (1997-08-01), Fujimoto et al.
patent: 5697865 (1997-12-01), Jang
patent: 5720694 (1998-02-01), Jang
patent: 5733220 (1998-03-01), Iizuka
patent: 5749805 (1998-05-01), Shimada et al.
patent: 5795262 (1998-08-01), Robinson
patent: 5797821 (1998-08-01), Fujimoto et al.
Hyundai Motor Company
Kwon Peter T.
Wright Dirk
LandOfFree
Hydraulic control system for automatic transmissions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic control system for automatic transmissions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic control system for automatic transmissions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2244592