To accurately correct a seat load which is detected after the detection of a collision based on a collision signal even in a constitution in which a load sensor arranged at a seat functions as a collision sensor.SOLUTION: A load sensor 10 detects a collision of a vehicle on the basis of a variation of a load detection signal Sw, and outputs a collision signal Sc to an ECU 20 by defining a detection result. The ECU 20 detects the collision of the vehicle on the basis of the collision signal Sc. The ECU 20 records the transition of the load detection signal Sw and a seat load W. Then, the ECU 20 specifies timing T1 at which the load sensor 10 has detected the collision of the vehicle on the basis of a transition record of the load detection signal Sw, and calculates a correction value of the seat load W based on a difference value between a stabilized seat load Wz after the detection of the collision of the vehicle by the ECU 20, and a stabilized seat load Wy before the detection of the collision of the vehicle by the load sensor 10.SELECTED DRAWING: Figure 3

    【課題】シートに設けられた荷重センサが衝突センサとして機能する構成においても、その衝突信号に基づいた衝突検知後に検出されるシート荷重を精度よく補正すること。【解決手段】荷重センサ10は、荷重検出信号Swの変動に基づき車両の衝突を検出するとともに、この検出結果を確定させることによりECU20に対して衝突信号Scを出力する。そして、ECU20は、この衝突信号Scに基づき車両の衝突を検知する。また、ECU20は、荷重検出信号Sw及びシート荷重Wの推移を記録する。そして、ECU20は、荷重検出信号Swの推移記録に基づき荷重センサ10が車両の衝突を検出したタイミングT1を特定し、ECU20が車両の衝突を検知した後の安定したシート荷重Wzと荷重センサ10が車両の衝突を検出する前の安定したシート荷重Wyとの差分値に基づいたシート荷重Wの補正値を演算する。【選択図】図3


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    Title :

    SEAT LOAD DETECTION METHOD AND SEAT LOAD DETECTION DEVICE


    Additional title:

    シート荷重検出方法及びシート荷重検出装置


    Contributors:

    Publication date :

    2019-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / G01G Wägen , WEIGHING



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