Control system for automatic transmissions for vehicles

Details Control system for automatic transmissions for vehicles Control system for automatic transmissions for vehicles

1983-10-31

1986-02-18

Herrmann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0076, 192 33, 192 331, 192103R, B60K 4502, B60K 4128

Patent

active

045707707

ABSTRACT:
A control system for an automatic transmission for a vehicle with an electric vehicle speed detector, the automatic transmission including a torque converter with a semi-direct coupling mechanism hydraulically controllable of the degree of coupling.
The control system comprises a signal processing circuit for processing an electrical vehicle speed signal to provide an electric control signal, and an electro-magnetic valve mechanism for selectively supplying a multi-staged hydraulic control pressure to the semi-direct coupling mechanism in accordance with the electric control signal.
Automatic transmissions of the above type are applied to a vehicle with an electric vehicle speed detector, without any major change of existing production system and at an inexpensive cost.

REFERENCES:
patent: 3058373 (1962-10-01), Snoy et al.
patent: 3805640 (1974-04-01), Schneider et al.
patent: 4476970 (1984-10-01), Ito
patent: 4507985 (1985-04-01), Morimoto et al.

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