DEVICE AND METHOD FOR CORRECTION OF ACCELERATION SENSOR

To provide a device for correcting acceleration in two axial directions detected by a biaxial acceleration sensor to acceleration in a vehicle traveling direction and a vertical direction.SOLUTION: A device 10 includes a processing section 11. The processing section corrects the influence of the pitch angle from the Xs axis and the Zs axis acceleration based on the Xs axis acceleration value output by an acceleration sensor 1 in a reference state in which the vehicle is stationary on a plane perpendicular to the vertical direction, thereby obtaining the first correction Xs axis and the Zs axis acceleration. The processing section calculates the second correction Zs axis acceleration by correcting the influence of the roll angle from the first correction Zs axis acceleration based on the value of the Zs axis acceleration output from the acceleration sensor 1 in the reference state. The processing section corrects the influence of the yaw angle from the first correction Xs axis acceleration based on the reference acceleration in the Xc axis direction which is output from the acceleration sensor 2 and corrected, thereby obtaining the second correction Xs axis acceleration.SELECTED DRAWING: Figure 7 【課題】２軸加速度センサが検知する２軸方向の加速度を、車両の車両進行方向及び鉛直方向の加速度に補正する装置を提供する。【解決手段】装置１０は、車両が鉛直方向に対して直交する面上に静止して配置された基準状態において加速度センサ１が出力したＸｓ軸加速度の値に基づいて、Ｘｓ軸及びＺｓ軸加速度からピッチ角の影響を補正して、第１補正Ｘｓ軸及びＺｓ軸加速度を求め、基準状態において加速度センサ１が出力したＺｓ軸加速度の値に基づいて、第１補正Ｚｓ軸加速度からロール角の影響を補正して第２補正Ｚｓ軸加速度を求め、加速度センサ２が出力して補正されたＸｃ軸方向の基準加速度に基づいて、第１補正Ｘｓ軸加速度からヨー角の影響を補正して、第２補正Ｘｓ軸加速度を求める処理部１１を備える。【選択図】図７