PROBLEM TO BE SOLVED: To provide an operation determination device and an operation determination method with which it is possible to determine whether an ultrasonic wave transmission/reception operation using an ultrasonic sensor is normal or not using an existing configuration without requiring actual confirmation by a driver.SOLUTION: The operation determination device comprises: a transmission control unit for controlling an ultrasonic sensor attached to the rear part of a vehicle and causing a plurality of transmission waves having each of a plurality of frequencies including the natural oscillation frequency of the ultrasonic sensor and at least one of frequencies preceding and following the natural oscillation frequency to be transmitted toward a road surface; and a determination unit which, when the plurality of transmission waves are transmitted from the ultrasonic sensor, determines whether ultrasonic wave transmission/reception operation using the ultrasonic sensor is normal or not on the basis of whether or not the magnitude of a first reflected wave having the natural oscillation frequency among a plurality of reflected waves that are reflected by the road surface and received by the ultrasonic sensor is larger than the magnitude of a second reflected wave having a frequency other than the natural oscillation frequency.SELECTED DRAWING: Figure 2

    【課題】運転者が実際に確認することなく、既存の構成を用いて、超音波センサを用いた超音波の送受信動作が正常であるか否かについて判定することが可能な動作判定装置および動作判定方法を提供する。【解決手段】動作判定装置は、車両の後方部に取り付けられた超音波センサを制御して、超音波センサの固有振動周波数と当該固有振動周波数前後の少なくとも一方の周波数とを含む複数の周波数のそれぞれを有する複数の送信波を路面に向けて送信させる送信制御部と、超音波センサから複数の送信波が送信された場合、路面にて反射されて超音波センサにより受信された複数の反射波のうち固有振動周波数を有する第1反射波の大きさが、固有振動周波数以外の周波数を有する第2反射波の大きさより大きいか否かに応じて、超音波センサを用いた超音波の送受信動作が正常であるか否かについて判定する判定部とを備える。【選択図】図2


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    Title :

    OPERATION DETERMINATION DEVICE AND OPERATION DETERMINATION METHOD


    Additional title:

    動作判定装置および動作判定方法


    Contributors:

    Publication date :

    2017-09-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR




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