Electronic device for gear selection in an automatic transmissio

Details Electronic device for gear selection in an automatic transmissio Electronic device for gear selection in an automatic transmissio

1992-10-29

1994-12-06

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

74473R, 3242072, B60K 4106, G01B 714

Patent

active

053700155

ABSTRACT:
An electronic device for gear selection in an automatic transmission for motor vehicles, comprising a plurality of digital sensors for determining the angular position of rotation of a gear selection shaft emerging from the automatic transmission and rotatable to engage the various gears by a stepping motor operable in both directions, the digital sensors and the stepping motor being electrically connected to a digital electronic operating and control unit which can process coded electrical signals emitted by the plurality of digital sensors as the angular position of the selection shaft varies, a pair of electrical actuators being provided to drive the stepping motor through at least one step at a time in one direction of rotation and/or the other.

REFERENCES:
patent: 4291586 (1981-09-01), Buetemeister
patent: 4610179 (1986-09-01), Parker
patent: 4726260 (1988-02-01), Lovrenich et al.
patent: 5094115 (1992-03-01), Michihira et al.
patent: 5156243 (1992-10-01), Aoki et al.
patent: 5161422 (1992-11-01), Suman et al.
patent: 5307013 (1994-04-01), Santos et al.

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