Machine element or mechanism – Gearing – Interchangeably locked
Patent
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.
Fiat Auto S.p.A.
Ta Khoi Q.
Wright Dirk
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