Method for determining current circumference of e.g. front and rear wheels of motor car, involves compensating measured wheel circumference with respect to measurement speed to determine current wheel circumference for parking-speed range

摘要

The method involves measuring a current circumference of a wheel with a constant measurement speed of a motor car for a distance, which is defined by two specific car positions predetermined (9) by a satellite navigation. The measured wheel circumference is compensated (11) with respect to the measurement speed by linking the measured wheel circumference with a compensation factor obtained from a characteristic curve for determination of the current wheel circumference for a predetermined parking-speed range, where the characteristic curve varies for front and rear wheels. The characteristic curve is provided in form of a look-up table. An independent claim is also included for a device for determining a current circumference of a wheel of a motor car.