PROBLEM TO BE SOLVED: To provide a failure diagnostic device for a negative pressure sensor that can inhibit a decline in frequency of abnormality diagnosis on a negative pressure sensor, and to provide a failure diagnostic method for a negative pressure sensor and a brake device.SOLUTION: A failure diagnostic device 27 determines that a negative pressure sensor 25 has an abnormality when a fluctuation amount of a signal detected by the negative pressure sensor 25 at the time of brake release is equal to or lower than a predetermined fluctuation amount.SELECTED DRAWING: Figure 1

    【課題】 負圧センサの異常診断の頻度低下を抑制できる負圧センサの故障診断装置、負圧センサの故障診断方法およびブレーキ装置を提供する。【解決手段】 故障診断装置27は、ブレーキリリース時における負圧センサ25の検出信号の変動量が所定の変動量以下の場合に、負圧センサ25が異常であると判定する。【選択図】 図1


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    Title :

    FAILURE DIAGNOSTIC DEVICE FOR NEGATIVE PRESSURE SENSOR, FAILURE DIAGNOSTIC METHOD FOR NEGATIVE PRESSURE SENSOR AND BRAKE DEVICE


    Additional title:

    負圧センサの故障診断装置、負圧センサの故障診断方法およびブレーキ装置


    Contributors:

    Publication date :

    2018-06-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF






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