| 摘要 |
<p>PURPOSE:To make it possible for the cornering lamp system to be applied to all types of cars without changing the relations which correspond to the angle of illumination and in the same system-construction, and allow the cornering lamp system to follow the return of the line of sight of a driver when a car escapes a curved road. CONSTITUTION:The angular velocity omeganew at the time when a car travels on a curved road, is calculated based on output from an angular velocity sensor (step 101). The car speed is measured based on the distance pulse from a distance sensor (step 102). The angular velocity Cd is divided by the car speed (v) to calculate the reciprocal of the turning radius (r), and a target value thetas of the angle of illumination is determined by multiplying the reciprocal of the turning radius (r) by a constant K(step 110). Next, based on the difference between omegaold and omeganew, the time when the gradient of the angular velocity is changed in the zero-direction is judged to be the time when a car reaches the termination of a curved road (step 108), and when the termination of the road is sensed, a target value thetas is changed to one-half the target value thetas in step 110.</p> |
