发明名称 |
Apparatus and method for assessing condition of road surface |
摘要 |
<p>An apparatus for assessing the condition of a road surface comprising rotational speed detecting means for periodically detecting rotational speeds of four tyres of a vehicle; first computing means for computing slip ratio from measurement values of the rotational speed detecting means; second computing means for obtaining a relational formula between the slip ratio and acceleration/deceleration of the vehicle; and friction coefficient judging means for judging a coefficient of friction occurring between a road and a tyre on the basis of a slope of the relational formula obtained by the second computing means. The road friction coefficient mu can be judged with high accuracy in a short time by using only the wheel rotational speed information of four wheels. Thus, the performance and safety of a vehicle can be increased. <IMAGE></p> |
申请公布号 |
EP1132271(A2) |
申请公布日期 |
2001.09.12 |
申请号 |
EP20010302137 |
申请日期 |
2001.03.08 |
申请人 |
SUMITOMO RUBBER INDUSTRIES LTD. |
发明人 |
KAWASAKI, HIROAKI;NAKAO, YUKIO |
分类号 |
B60T8/17;G01N19/02;B60T8/172;B60T8/66;(IPC1-7):B60T8/00 |
主分类号 |
B60T8/17 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|