| 摘要 |
A method for estimating a friction coefficient between a tire of a vehicle and a road surface, which may be used in obtaining a safety distance for an adaptive vehicle, estimating the friction coefficient by using state variables that are measured by means of RPM sensors normally equipped on vehicles. A device for estimating a friction coefficient has a control section receiving signals from a braking/steering monitoring section and outputting the friction coefficient stored in a friction coefficient value storage when both or either of a braking action and a steering action are applied to the vehicle, and outputting the friction coefficient estimated by a friction coefficient estimator when the braking action and the steering action are not applied to the vehicle.
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