To make it possible to quickly detect an abnormality of a spring vertical-acceleration sensor that is used for controlling a suspension.SOLUTION: A vehicular suspension control device comprises an actuator that makes control force in a vertical direction act on a space between a spring lower structure and a spring upper structure of a vehicle, at least four spring vertical acceleration sensors, and an electronic control unit. The electronic control unit controls the actuator on the basis of detected acceleration by the at least four spring vertical acceleration sensors. In abnormality detecting processing, the electronic control unit calculates estimated acceleration of spring vertical acceleration at a position of the remaining one spring vertical acceleration sensor, on the basis of the detected acceleration by the spring vertical acceleration sensors which are one less than all of the at least four spring vertical acceleration sensors, and determines whether an abnormal spring vertical acceleration sensor is included in the at least four spring vertical acceleration sensors or not, on the basis of a result of comparison of the calculated estimated acceleration with the detected acceleration by the remaining one spring vertical acceleration sensor.SELECTED DRAWING: Figure 3
【課題】サスペンション制御に用いられるばね上加速度センサの異常を速やかに検出可能とする。【解決手段】車両用サスペンション制御装置は、車両のばね下構造体とばね上構造体との間に上下方向の制御力を作用させるアクチュエータと、少なくとも4つのばね上加速度センサと、電子制御ユニットと、を備える。電子制御ユニットは、少なくとも4つのばね上加速度センサの検出加速度に基づいてアクチュエータを制御する。異常検出処理において、電子制御ユニットは、少なくとも4つのばね上加速度センサの全部より1つ少ない数のばね上加速度センサの検出加速度に基づいて、残りの1つのばね上加速度センサの位置のばね上加速度の推定加速度を算出し、算出された推定加速度と残りの1つのばね上加速度センサの検出加速度との比較に基づいて、少なくとも4つのばね上加速度センサの中に異常なばね上加速度センサが含まれているか否かを判定する。【選択図】図3
VEHICULAR SUSPENSION CONTROL DEVICE
車両用サスペンション制御装置
2023-05-15
Patent
Electronic Resource
Japanese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
VEHICULAR SUSPENSION CONTROL DEVICE, AND VEHICULAR SUSPENSION CONTROL METHOD
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