Steering angle ratio varying device for a vehicle

Details Steering angle ratio varying device for a vehicle Steering angle ratio varying device for a vehicle

1994-02-07

1995-02-07

Focarino, Margaret A.

Motor vehicles

Compensating devices

74397, B62D 312

Patent

active

053868790

ABSTRACT:
In a steering angle ratio varying device for a vehicle adapted to be connected in series with a steering input shaft, a first shaft on an input end and a second shaft on an output end are supported in a mutually parallel and laterally moveable relationship, and a crank pin extending from the second shaft is engaged in a diagonal slot provided in an associated axial end of the first shaft. Because the radial distances of the point of engagement between the first and second shafts as measured from the axial center lines of the first and second shafts generally differ from each other, there is a nonlinear relationship between the angular displacements of the first and second shafts. In particular, the angular increment of the second shaft for a given angular increment of the second shaft may be progressively reduced as the angular displacement of the first shaft is increased, and by suitably varying the eccentricity between the two shafts it is possible to require only a relatively small steering input angle for an improved maneuverability in a low speed range, and to prevent an overly sensitive behavior of the vehicle for an improved stability in a high speed range.

REFERENCES:
patent: 3716110 (1973-02-01), Fonda
patent: 5174407 (1992-12-01), Shimizu et al.
patent: 5203421 (1993-04-01), Ueno et al.
patent: 5284219 (1994-02-01), Shimizu et al.

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