VEHICLE SPEED DETERMINATION SYSTEM, STABILITY CONTROL SYSTEM, AND SADDLE-RIDING TYPE VEHICLE HAVING STABILITY CONTROL SYSTEM

摘要

PROBLEM TO BE SOLVED: To determine vehicle speed when turning by a steering operation.SOLUTION: A vehicle speed determination system is a speed determination system for a vehicle having a front wheel and a rear wheel. The vehicle speed determination system includes: a wheel speed sensor 35 for detecting wheel speed Vof the front wheel; and a computing unit 200 which determines vehicle speed V(r) at a rear wheel ground point on the basis of difference of the vehicle speed generating between a front wheel ground point and the rear wheel ground point due to difference between a traveling trace of the front wheel and a traveling trace of the rear wheel, and on the basis of the wheel speed Vof the front wheel.SELECTED DRAWING: Figure 5