The invention provides a life determination device and a life determination method capable of determining the life of an accumulator tank. The ECU (4) is configured to determine the life of the accumulator tank. The accumulator tank has a gas chamber filled with gas, an oil chamber connected to the common passage, and a piston that partitions the gas chamber and the oil chamber. The pressure accumulation tank is configured so as to accumulate the hydraulic oil in the oil chamber and so as to be able to discharge the hydraulic oil from the oil chamber. The ECU (4) calculates the amount of movement of the piston on the basis of a change in the volume of the gas chamber. When the calculated integrated value of the amount of movement exceeds a threshold value, the ECU (4) determines that the life of the accumulator tank has reached.

    本发明提供能够判定蓄压罐的寿命的寿命判定装置以及寿命判定方法。ECU(4)构成为对蓄压罐的寿命进行判定。蓄压罐具有填充有气体的气室、与共用通路连接的油室、以及对气室及油室进行分隔的活塞。蓄压罐构成为:将工作油蓄积于油室,并且能够排出油室的工作油。ECU(4)基于气室的体积变化来计算活塞的移动量。在计算出的移动量的累计值超过阈值的情况下,ECU(4)判定为蓄压罐的寿命已到。


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    Title :

    Life determination device and life determination method


    Additional title:

    寿命判定装置以及寿命判定方法


    Contributors:
    TANAKA SHOGO (author) / KANDA RYO (author) / KANDA SEIJI (author) / TANAKA RYOKO (author) / ENDO TAKUMA (author)

    Publication date :

    2024-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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