Brake/shift interlock for an automatic transmission shift contro

Details Brake/shift interlock for an automatic transmission shift contro Brake/shift interlock for an automatic transmission shift contro

1990-01-18

1991-07-02

Herrmann, Allan D.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 4A, 74483R, B60K 4126, G05G 510

Patent

active

050279319

ABSTRACT:
A brake/shift interlock assembly is mounted on the steering column in operational cooperation with a column mounted shift control mechanism for an automatic transmission. The brake/shift interlock assembly includes a pivotal latch for selectively locking the detent bar of the shift control mechanism in the park position, a solenoid assembly with an actuator rod for magnetically holding the latch in the locking position, a return spring for normally biasing the actuator rod and latch in the locking position, a spring lever for selectively moving the latch to an unlock position and an electrical control circuit for energizing the solenoid when the ignition system is on and the foot brake switch is open.

REFERENCES:
patent: 3942614 (1976-03-01), Thompson
patent: 4096930 (1978-06-01), Viscardi
patent: 4473141 (1984-09-01), Mochida
patent: 4884668 (1989-12-01), Kobayashi et al.
patent: 4905802 (1990-03-01), Gotoh
patent: 4934496 (1990-06-01), Barske et al.

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