PURPOSE: To execute an optimum control of a general wheel-turn by providing a distance measuring means for measuring whether a distance is long or short by irradiating a beam havig a directivity onto a road surface being at a prescribed distance in front of a car body and photodetecting its reflected light.
CONSTITUTION: A front road surface state detecting device is constituted of an optical distance sensor 2 for emitting a laser beam having a directivity to the prescribed direction, photodetecting a reflected light from an object (in this case, a road surface) 3, and measuring a distance to it, and a road surface state deciding circuit 4 for deciding an uneven state of a front road surface. In this way, an uneven state of a front road surface in the advance direction of an automobile is foreknown, and an optimum control of a suspension, etc. which cause no delay by feed forward can be executed.
| JPH05332755 | SMOOTHNESS MEASURING DEVICE |
| JPH05118828 | SPIRAL MATERIAL MEASURING APPARATUS |
| JP2017531787 | Wafer edge inspection with a trajectory that follows the edge profile |
TAKAHASHI FUMITAKA
NAKAYAMA SHIGETO
TAGAMI KATSUTOSHI
| JPS5118564A | 1976-02-14 |
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