| 摘要 |
A vehicle cornering headlamp system which can be applied to any type of vehicle without changing the correspondence to a radiation angle, and which enables the radiation angle to follow the return of driver's eyes when the vehicle exits a curved road. The angular velocity omega new is calculated at the time of travelling on a curved road on the basis of the output from an angular velocity sensor and the vehicle speed v is measured on the basis of distance pulses from a distance sensor. The current angular velocity, omega new, is divided by the vehicle speed v to calculate the reciprocal number of a revolution radius r, which is multiplied by a constant K, so as to obtain a target value theta s of the radiation angle. Then, on the basis of the difference between omega old, the angular velocity detected at a previous time, and omega new, it is determined that the vehicle is approaching an end of the curved road when the gradient of the angular velocity omega changes toward the direction of zero. If an end of the curved road is detected, a target value theta s is set to half the target value theta s set when the vehicle is travelling on a curved road.
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