| United States Patent | 5,195,601 |
| Voigt, et. al. | Mar. 23, 1993 |
Independent rear wheel toe-in control in a vehicle four
wheel steering system
| Inventors: | Voigt; Ronald W. (Essexville, MI); Zuraski; Jeffrey A. (Saginaw, MI); McDonald; Brian P. (Saginaw, MI); Babineau; James W. (Saginaw, MI); Morrison; Scott D. (Rochester, MI). |
| Assignee: | General Motors Corporation (Detroit, MI). |
| Appl. No.: | 694,296 |
| Filed: | May 2, 1991 |
| Intl. Cl. : | B62D 5/04 |
| U.S. Cl.: | 180/79.1; 180/140 |
| Current U.S. Class: | 180/412 |
| Field of Search: | 180/79.1, 140; 280/91, 661 |
References Cited
U.S. Patent Documents
| 4,768,603 | Sept., 1988 | Sugiyama et al. | 180/140 |
| 4,976,328 | Dec., 1990 | Ohmura | 180/140 |
| 5,067,577 | Nov., 1991 | Morishita | 180/79.1 |
Primary Examiner: Stormer; Russell D.
Assistant Examiner: Zeender; Florian
Attorney, Agent or Firm: Navarre; Mark A.
Abstract
The rear wheels of a motor vehicle are independently steered in an inward (toe-in) direction to improve yaw stability and on-center response. In moderate-to severe turning maneuvers, the rear wheel on the outside of the turn is controlled. In low-to-moderate turning maneuvers, the rear wheel on the inside of the turn is controlled.
3 Claims, 10 Drawing Figures
Last Updated : Sun Mar 9 23:31:03 EST 2008
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