Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1987-03-13
1989-05-30
Pekar, John A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
180142, 3644241, B62D 506
Patent
active
048342041
ABSTRACT:
A control system for steering front wheels or rear wheels of a controlled vehicle has a processing unit such as a microcomputer which determines a desired value of a dynamical variable such as yaw acceleration corresponding to sensed steering wheel angle and sensed vehicle speed by solving equations of motion of a vehicle in which parameters are set equal to desired values determined by a desired vehicle. From the desired value of the dynamical variable, the processing unit determines a desired value of a steering angle of the front or rear wheels, and commands a hydraulic actuator to steer the front or rear wheels so that the controlled vehicle behaves as if it were the desired vehicle. The controlled vehicle may have a mechanical steering linkage for steering the front wheels in a conventional manner, and the control system may be arranged to control the steering angle of the rear wheels.
REFERENCES:
patent: 3866706 (1975-02-01), Lincke
patent: 3897846 (1975-08-01), Inoue
patent: 4175638 (1979-11-01), Christensen
patent: 4412594 (1983-11-01), Furukawa
patent: 4418780 (1983-12-01), Ito
patent: 4441572 (1984-04-01), Ito
patent: 4476529 (1984-10-01), Nakamura
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Concurrently filed U.S. patent application, Atty. Docket No. 85ITO651RLS/ISP-Ken Ito et al., fld. Sep. 9, 1985, Title: System for Controlling Cornering Characteristics of Wheeled Vehicle.
Concurrently filed U.S. patent application, Atty. Docket No. 85ITO652RLS/ISP-Ken Ito et al., fld. Sep. 9, 1985, Title: Steering Control System for Wheeled Vehicle.
Ser. No. 755,352 filed 7/16/85, Ito et al.
Inoue Naohiko
Ito Ken
Nissan Motor Co,. Ltd.
Pekar John A.
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