发明名称 |
Road-surface friction-coefficient estimating device |
摘要 |
A road-surface friction-coefficient estimating device compares a rack-thrust-force deviation value with a preliminarily set maximum-value-determination threshold value. If the rack-thrust-force deviation value is above the maximum-value-determination threshold value, the device determines that tires are slipping, and sets a front-wheel friction-circle utilization rate in that state as a road-surface friction coefficient. If the rack-thrust-force deviation value is below the maximum-value-determination threshold value, the device refers to a preliminarily set map to determine a restoring speed at which the road-surface friction coefficient is to be restored to 1.0 based on a vehicle speed and a front-wheel slip angle. While restoring the road-surface friction coefficient at the restoring speed, the device calculates and outputs the road-surface friction coefficient.
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申请公布号 |
US2008262692(A1) |
申请公布日期 |
2008.10.23 |
申请号 |
US20080081245 |
申请日期 |
2008.04.11 |
申请人 |
KOGURE MASARU;MATSUNO KOJI;YONEDA TAKESHI |
发明人 |
KOGURE MASARU;MATSUNO KOJI;YONEDA TAKESHI |
分类号 |
G06F7/00;B60W40/068;B62D6/00;B62D101/00;B62D111/00;B62D113/00;B62D119/00;B62D137/00 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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