| 摘要 |
PURPOSE:To execute an optimum control of a general wheel-turn of a car body by providing a distance measuring means for measuring each distance by irradiating a beam having a directivity to at least three spots on a road surface of the same line in the advance direction in front of the car body, respectively. CONSTITUTION:An optical distance sensor 2 is installed to the front of a car body of an automobile 1, and from its optical distance sensor 2, at least three laser beams are irradiated at each different angle to spots P, Q and R on a front road surface on the same line in the advance direction of the automobile 1, a distance between OP, OQ and OR is measured, respectively, and a flatness of the front road surface is detected by executing a prescribed operation processing by a road surface state deciding circuit 3 basing on each measured distance l1, l2 and l3. In this way, the flatness of the front road surface in the advance direction of the automobile is foreknown, and an optimum control of a general wheel-turn of a car body can be executed. |
