- 专利标题: Method and device for determining the driving condition of a vehicle
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申请号: US10096632申请日: 2002-03-13
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公开(公告)号: US06522961B2公开(公告)日: 2003-02-18
- 发明人: Karl-Heinz Hesse , Olaf Thielking
- 申请人: Karl-Heinz Hesse , Olaf Thielking
- 优先权: DE10112159 20010314
- 主分类号: G01P700
- IPC分类号: G01P700
摘要:
The present invention relates to a method and device for determining the driving condition of a vehicle, especially in the event of failure or absence of a speed sensor. For this purpose, the spring travels between a vehicle body and vehicle axles are continuously sampled. From the measured spring-travel values, the mean values or the sums are formed for each vehicle axle. From these mean values or sums, the number of local extrema within a predefinable observation period is determined. Thereafter, the frequency of the local extrema and thus the frequency of the vertical relative motion between vehicle body and vehicle axle are determined. The determined frequency of the local extrema is compared with a predefinable frequency threshold value, which defines a stationary condition of the vehicle, a moving condition of the vehicle being indicated if this threshold value is exceeded. The comparison result is delivered for corrective actions in regulating or control devices and/or monitoring devices of the vehicle.