| 摘要 |
The invention relates to a method for determining that a motor vehicle is driving uphill or downhill, and for this purpose the vehicle acceleration aref is determined by means of differentiation from Vref and compared with a longitudinal vehicle acceleration aL determined by a sensor. The method checks whether there is a deviation from normal driving by monitoring whether |aL-aref| is greater than a threshold value SL. In addition a deviation time t is determined, within which the deviation from normal driving prevails without interruption; the deviation time t is monitored to determine whether a minimum time value TM is exceeded in order to conclude that the vehicle is climbing or descending a slope when t is greater than TM. The invention also relates to a device that uses a digital logic with a counter to measure the times t, t1, t2 and tK, with one digit of the logic corresponding to a defined time unit.
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