| 摘要 |
<p>PURPOSE:To detect an obstacle ahead accurately by expanding or shifting an obstacle detection area in such a direction that the ongoing direction of a vehicle is expected to change. CONSTITUTION:A controller 17 inputs signals of a steering angle, a vehicle speed and the like from sensors 18 to calculate an angle of skidding' of a vehicle, a turning radius and the maximum detection distance and an angle of expansion of a beam light from a light emitting device 13 is set to form a detection area in a straight running. Then, when an input of turning to the left or right is applied to winkers, the controller 17 works to expand the angle of the detection area to the left or right. Then, the controller 17 detects the obstacle in the detection area to determine the direction and distance with respect to a thing at the closest range and executes a danger judging routine to judge the degree of danger of the obstacle. This enables accurate detection of the obstacle to notify the existence thereof to a driver.</p> |
