| 摘要 |
PURPOSE:To enable accurate vehicle angular speed detection even if an angular speed sensor has variance by detecting the ambient temperature, reading out the store sensitivity of the angular speed sensor corresponding to the temperature, and correcting the detected angular speed. CONSTITUTION:When the ambient temperature detected value of the angular speed sensor 11 by a temperature sensor 12 and the angular speed detected value from the angular speed sensor 11 are supplied, an angular speed arithmetic means 11 subtracts an offset value from the angular speed detected value and reads the sensitivity of the sensor corresponding to the temperature out of a temperature characteristic storage means 14 to correct the angular speed. Even if the angular speed sensor has variance with the temperature, the angular speed of wheels can accurately be calculated and detected. |
