Transmission-mounted park-position interlock system

Details Transmission-mounted park-position interlock system Transmission-mounted park-position interlock system

1998-04-23

1999-09-21

Bonck, Rodney H.

192 clutches and power-stop control

Transmission and brake

Motor vehicle

1922207, B60K 4126

Patent

active

059541792

ABSTRACT:
The present apparatus includes a park/lock mechanism mounted on a transmission for controlling operation of the transmission and, more particularly, for preventing the transmission from being shifted out of the park position until predetermined vehicle operating conditions are met. The park/lock mechanism is remotely actuated by an actuator physically connected to the park/lock mechanism and electrically connected to the shift lever. The park/lock mechanism includes a linkage having a pair of links connected in an overcenter arrangement, the toggle links providing a mechanical advantage and moving overcenter as the park/lock mechanism moves to a park/lock position. A hydraulic circuit and electrical circuit for operating the actuator is also disclosed.

REFERENCES:
patent: 2966244 (1960-12-01), Schreyer
patent: 4069900 (1978-01-01), Stamate
patent: 4549448 (1985-10-01), Kittle
patent: 5009295 (1991-04-01), Kinkade et al.
patent: 5167308 (1992-12-01), Osborn
patent: 5275065 (1994-01-01), Ruiter
patent: 5402870 (1995-04-01), Osborn
patent: 5494141 (1996-02-01), Osborn et al.
patent: 5677658 (1997-10-01), Osborn et al.

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