发明名称 |
ROAD SURFACE state DETECTION DEVICE FOR VEHICLE, ROAD SURFACE state DETECTION METHOD FOR VEHICLE, AND CONTROL PROGRAM OF ROAD SURFACE state DETECTION DEVICE FOR VEHICLE |
摘要 |
PROBLEM TO BE SOLVED: To solve the problem that the polarization ratio intensity includes the noise generated due to the outside light varying while travelling and the installation depression angle of an on-vehicle camera. SOLUTION: When calculating the moving average to remove impulse component noise and high frequency noise in calculating the polarization ratio intensity, a moving average parameter N which is the weight of the moving average is treated as the function of a travelling speed V (the function that reduces the moving average parameter N substantially corresponding to an increase in the travelling speed V). This allows detection of the road surface state with a good response when quick determination is required such as during high-speed travelling while enabling stable detection of the road surface state during low-speed travelling. This also improves the calculation accuracy of the polarization ratio intensity and the detection accuracy of the road surface state. COPYRIGHT: (C)2005,JPO&NCIPI
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申请公布号 |
JP2004299443(A) |
申请公布日期 |
2004.10.28 |
申请号 |
JP20030091927 |
申请日期 |
2003.03.28 |
申请人 |
NAGOYA ELECTRIC WORKS CO LTD |
发明人 |
YAMADA MUNEO;TANIZAKI TETSUYA;NAKAMURA KAORI;UEDA KOJI;HORIBA ISAO |
分类号 |
B60R16/02;B60W40/06;B60W40/068;(IPC1-7):B60R16/02 |
主分类号 |
B60R16/02 |
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