Compensating the temperature drift of an accelerometer on board a two-wheeled motor vehicle for measuring vehicle tilt
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United States of America Patent
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Aug 15, 2023
Grant Date -
Feb 23, 2023
app pub date -
Mar 5, 2021
filing date -
Mar 9, 2020
priority date (Note) -
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Abstract
A method for compensating for a temperature drift of an accelerometer for measuring the lateral tilt of a motorbike. When the vehicle is in the “bike upright” condition, and the temperature of the accelerometer is at least 30° C. above its reference temperature, a reading is taken of the acceleration values. These values are then processed in order to identify the coefficient of the slope of the straight line for correcting the offset of each axis of the accelerometer. A processing operation involves verifying the strict monotony of the coefficients in at least two successive readings and ensuring that the mean value thereof is included between determined limits. The mean coefficient that is finally obtained then can be used to correct the temperature of accelerations read over the entire operating range of the accelerometer. Thus, the computation of the tilt angle of the motorbike is more precise.
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