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Patent Searching and Data


Title:
CONTROLLER OF TRANSMISSION FOR CAR
Document Type and Number:
Japanese Patent JPS61278648
Kind Code:
A
Abstract:
PURPOSE:To soften shock by temporarily supplying the pressurized oil into the both frictional engagement elements for advance and retreat when the shift position is switched from a parking position and a neutral position to other positions. CONSTITUTION:When a shift lever is operated, and a manual valve 36 is switched from a parking range P to a reverse range R, a spool 37 shifts, and a line pressure is supplied into a clutch for advance through an oil passage 35, ports 35a and 39a, and an oil passage 39, and supplied into a brake for retreat through ports 35b, 41c and 41b, and an oil passage 40. When the spool 37 shifts further, the line pressure is supplied only into the brake for retreat, and the oil passage 39 which communicates to the clutch for advance communicates to a drain through the port 36a, Therefore, the turning moment of an engine in shift operation is offset in a transmission, and shock can be softened.

Inventors:
TSUZUKI SHIGEO
HASEBE MASAHIRO
Application Number:
JP12012785A
Publication Date:
December 09, 1986
Filing Date:
June 03, 1985
Export Citation:
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Assignee:
AISIN WARNER
International Classes:
F16H61/08; F16H59/10; F16H61/10; (IPC1-7): F16H5/64