Creep preventing device for vehicle equipped with automatic tran

Details Creep preventing device for vehicle equipped with automatic tran Creep preventing device for vehicle equipped with automatic tran

1984-03-29

1986-12-02

Dorner, Kenneth J.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, B60K 4118, B60K 4116

Patent

active

046255893

ABSTRACT:
In a creep preventing device for vehicles equipped with an automatic transmission comprising: a fluid type torque converter; an auxiliary transmission having a frictionally engaging element for starting and connected to the torque converter; and a creep preventing valve disposed in an oil passage branched from an operating oil passage leading to the frictionally engaging element to communicate with an oil tank and adapted to open the oil passage during the idle operation of the vehicle, the improvement wherein the creep preventing valve includes an oil chamber for closing the valve when oil pressure above a predetermined level is introduced thereto, and an oil passage for guiding the oil pressure from an engine output proportional signal pressure generating means, which releases the signal pressure proportional to the engine output, is connected to the oil chamber, whereby the engaging force of the clutch for starting can be controlled in an analog fashion to ensure the smooth reengaging operation of the clutch.

REFERENCES:
patent: 3890856 (1975-06-01), Miyauchi et al.
patent: 4313353 (1982-02-01), Honig
patent: 4494640 (1985-01-01), Honig
patent: 4503733 (1985-03-01), Hasegawa
patent: 4513638 (1985-04-01), Nishikawa et al.
patent: 4513639 (1985-04-01), Hiramatsu

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