VEHICLE SPEED DETERMINATION SYSTEM, STABILITY CONTROL SYSTEM, AND SADDLED VEHICLE HAVING THE SAME
First Claim
1. A vehicle speed determination system for a vehicle having a front wheel and a rear wheel, comprising:
- a wheel speed sensor configured to detect a wheel speed of the front wheel; and
an arithmetic circuit configured to determine an expected vehicle speed at a rear-wheel tangential point, based onthe wheel speed of the front wheel, andan expected difference in vehicle speed between a front-wheel tangential point and the rear-wheel tangential point due to a difference between a locus of travel of the front wheel and a locus of travel of the rear wheel.
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Accused Products
Abstract
A vehicle speed while curving through steering maneuver is determined. A vehicle speed determination system is applicable to a vehicle having a front wheel and a rear wheel. The system includes: a wheel speed sensor configured to detect a wheel speed Vf of the front wheel; and an arithmetic circuit configured to determine a vehicle speed V(r) at a rear-wheel tangential point, based on a difference in vehicle speed between the front-wheel tangential point and the rear-wheel tangential point which occurs due to a difference between a locus of travel of the front wheel and a locus of travel of the rear wheel, and on the wheel speed Vf of the front wheel.
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Citations
20 Claims
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1. A vehicle speed determination system for a vehicle having a front wheel and a rear wheel, comprising:
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a wheel speed sensor configured to detect a wheel speed of the front wheel; and an arithmetic circuit configured to determine an expected vehicle speed at a rear-wheel tangential point, based on the wheel speed of the front wheel, and an expected difference in vehicle speed between a front-wheel tangential point and the rear-wheel tangential point due to a difference between a locus of travel of the front wheel and a locus of travel of the rear wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A stability control system for a vehicle having a front wheel and a rear wheel, the stability control system comprising:
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a first wheel speed sensor configured to detect a wheel speed of the front wheel; a second wheel speed sensor configured to detect a wheel speed of the rear wheel; an arithmetic circuit configured to determine a vehicle speed at a front-wheel tangential point and a vehicle speed at the rear-wheel tangential point, based on the wheel speed of the front wheel, a difference in vehicle speed between the front-wheel tangential point and the rear-wheel tangential point due to a difference between a locus of travel of the front wheel and a locus of travel of the rear wheel; and a longitudinal force controller configured to adjust an absolute value of a longitudinal force based on the vehicle speeds at the front-wheel tangential point and the rear-wheel tangential point, the longitudinal force being a sum of forces along a front-rear direction of the vehicle acting on the front wheel or the rear wheel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vehicle speed determination method for a vehicle having a front wheel and a rear wheel, the method comprising:
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detecting a wheel speed of the front wheel; and determining an expected vehicle speed at a rear-wheel tangential point, based on the wheel speed of the front wheel, and an expected difference in vehicle speed between a front-wheel tangential point and the rear-wheel tangential point due to a difference between a locus of travel of the front wheel and a locus of travel of the rear wheel. - View Dependent Claims (20)
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Specification