Neutral control device of automatic transmission

Details Neutral control device of automatic transmission Neutral control device of automatic transmission

1990-08-15

1991-10-01

Herrmann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

74866, 74861, F16D 5524

Patent

active

050525310

ABSTRACT:
A device provides transmission control whereby when a vehicle starts from standing state, even if a driver releases a brake pedal, action of the brake is maintained compulsorily until the starting gear position is formed by connection of frictional elements in the automatic transmission. Therefore, this device prevents effectively a vehicle from slipping down, upon starting on an upwardly sloped road, without more action of the brake than is necessary and with good startability.

REFERENCES:
patent: 3565220 (1971-02-01), Lammers
patent: 3746135 (1973-07-01), Ishikawa
patent: 4591016 (1986-05-01), Matthews
patent: 4610338 (1986-09-01), Kubota et al.
patent: 4645051 (1987-02-01), Maezono et al.
patent: 4667784 (1987-05-01), Cronin
patent: 4825989 (1989-05-01), Frigger
patent: 4850251 (1989-07-01), Kuwayama et al.
patent: 4891758 (1990-01-01), Simonyi et al.

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