Vehicle steering system for adjusting tire characteristic
First Claim
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1. A vehicle comprising;
- front wheels each equipped with a front tire and rear wheels each equipped with a rear tire having a rear tire characteristic which is different from a front tire characteristic of said front tire,a rear wheel steering system for steering the vehicle by varying a rear wheel steer angle, andcontrolling means for adjusting said rear tire characteristic by varying said rear wheel steer angle in a predetermined first cornering condition of the vehicle, wherein each of the front and rear tire characteristic is a relationship between cornering force and tire slip angle, and the front and rear tire characteristics are different in tire slip angle at maximum cornering force which is a tire slip angle at which the cornering force is increased to a maximum.
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Abstract
A vehicle has rear wheels each equipped with a rear tire having a tire characteristic which is different from that of front wheels, and which is suitable for one cornering condition, for example, a condition in which a lateral acceleation is high, and a steering system which steers the rear wheels so as to remedy the deficiency of the tires of the rear wheels in another cornering conditions.
15 Citations
16 Claims
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1. A vehicle comprising;
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front wheels each equipped with a front tire and rear wheels each equipped with a rear tire having a rear tire characteristic which is different from a front tire characteristic of said front tire, a rear wheel steering system for steering the vehicle by varying a rear wheel steer angle, and controlling means for adjusting said rear tire characteristic by varying said rear wheel steer angle in a predetermined first cornering condition of the vehicle, wherein each of the front and rear tire characteristic is a relationship between cornering force and tire slip angle, and the front and rear tire characteristics are different in tire slip angle at maximum cornering force which is a tire slip angle at which the cornering force is increased to a maximum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicle comprising;
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front wheels each equipped with a front tire and rear wheels each equipped with a rear tire having a rear tire characteristic which is intentionally made different from a front tire characteristic of said front tire, a rear wheel steering system for steering the vehicle by varying a rear wheel steer angle, and controlling means for adjusting the rear tire characteristic by varying the rear wheel steer angle in a predetermined cornering condition of the vehicle, wherein the front and rear tire characteristics are different in cornering power. - View Dependent Claims (14)
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15. A vehicle comprising;
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front wheels each equipped with a front tire, and rear wheels each equipped with a rear tire which is different from said front tire in a tire characteristic which is a relationship between cornering force and tire slip angle, a rear wheel steering system for steering the vehicle by varying a rear wheel steer angle, and controlling means for making the tire characteristic of the rear tires closer to the tire characteristic of the front tires by controlling said rear wheel steer angle in a predetermined first cornering condition. - View Dependent Claims (16)
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Specification