Shifter mounted brake-transmission interlock

Details Shifter mounted brake-transmission interlock Shifter mounted brake-transmission interlock

1990-06-04

1991-11-05

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

74483R, 180271, B60K 4128

Patent

active

050625098

ABSTRACT:
A shifter for an automatic transmission is prevented from shifting out of park position when the ignition switch is on unless the service brake is applied. A solenoid-operated blocking member is positioned to selectively block movement of a detent pin to prevent the shift lever from leaving the park position of the shift gate. A circuit including switches responsive to ignition, service brake application and shift lever position controls solenoid activation. A cam responsive to the shift lever release button and to the lever position controls the shift lever position switch.

REFERENCES:
patent: 3994183 (1976-11-01), Markl
patent: 4473141 (1984-09-01), Mochida
patent: 4880092 (1989-11-01), Kito et al.
patent: 4905802 (1990-03-01), Gotoh
patent: 4909096 (1990-03-01), Kobayashi
patent: 4932493 (1990-06-01), Sakurai et al.
patent: 4934496 (1990-06-01), Barske et al.
patent: 4942937 (1990-07-01), Amberger et al.
patent: 4947967 (1990-08-01), Kito et al.
patent: 4966262 (1990-10-01), Mieczkowski

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