COMPENSATING THE TEMPERATURE DRIFT OF AN ACCELEROMETER ON BOARD A TWO-WHEELED MOTOR VEHICLE FOR MEASURING VEHICLE TILT

摘要

The invention relates to a method for compensating a temperature drift of an accelerometer for measuring the lateral tilt of a motorcycle. When the vehicle is in the 'bike upright' position (622, 632) and the temperature of the accelerometer is at least 30°C greater than its reference temperature (621, 631), a reading is taken of the acceleration values (623, 633). These values are then processed so as to identify (623, 633) the slope coefficient of the correction straight line for the offset of each axis of the accelerometer. Processing consists of verifying (64) the strict monotony of coefficients in at least two successive readings and ensuring (65) that their average value is within the defined limits. The average coefficient that is ultimately produced (66) can then be used to correct the temperature of accelerations read over the whole range of use of the accelerometer. Thus, the calculation of the motorcycle tilt angle is more accurate.