Motor vehicles – Compensating devices
Patent
1991-12-13
1993-07-27
Oberleitner, Robert J.
Motor vehicles
Compensating devices
74388PS, B62D 504
Patent
active
052303977
ABSTRACT:
A mechanism for supplying power assistance to the steering column of a vehicle is arranged to operate in response to signals indicating that power assistance is required, and therefore has periods in which it is inoperative and periods in which it is operative, all while the vehicle is in motion. The mechanism comprises a motor driving a speed reducing mechanism which is coupled to the steering column. The mechanism includes an epicyclic gear train, the planet wheel carrier of which is fitted around the steering column, the epicyclic gear train being driven by the power assistance motor. The outer crown of the epicyclic gear train is mounted so as to be free to rotate about the steering column, but when power assistance is required the outer crown is prevented from rotating by means of a releasable blocking or braking means actuated by an electro-magnet, thus causing the planet wheel carrier to rotate the steering column.
REFERENCES:
patent: 4724917 (1988-02-01), Naito et al.
patent: 4898258 (1990-02-01), Ohe et al.
patent: 4921061 (1990-05-01), Asano
patent: 4934473 (1990-06-01), Fushimi et al.
patent: 4984647 (1991-01-01), Morishita et al.
patent: 5145021 (1992-09-01), Nakamura et al.
Hurley Kevin
Oberleitner Robert J.
Valeo Systemes D'Essuyage
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