PROBLEM TO BE SOLVED: To provide a determination method and a determination device performing failure determination of a contactor rapidly.SOLUTION: At the end of high voltage power supply, a control signal for opening a positive side contactor is outputted, and on the basis of the subsequent degree of voltage drop of a load, presence or absence of welding of a precharge contactor and a positive side contactor is determined. A determination is made that the positive side contactor is welded if the voltage does not drop, and that the precharge contactor is welded if the degree of voltage drop is smaller than a predetermined value. Furthermore, at the time of starting high voltage power supply, a control signal for closing the precharge contactor is outputted, and presence or absence of welding of a negative side contactor is determined on the basis of the subsequent degree of voltage rise of the load.SELECTED DRAWING: Figure 4
【課題】コンタクタの故障判定を迅速に行う判定方法及び判定装置を提供する。【解決手段】高電圧の電源供給の終了時には、正側コンタクタを開にする制御信号を出力し、その後の負荷の電圧降下度合いに基づいて、プリチャージコンタクタおよび正側コンタクタの溶着の有無を判定する。電圧が降下しない場合は正側コンタクタが溶着、電圧降下度合いが所定値よりも小さい場合はプリチャージコンタクタが溶着していると判定する。また、高電圧の電源供給の起動時には、プリチャージコンタクタを閉にする制御信号を出力し、その後の負荷の電圧上昇度合いに基づいて、負側コンタクタの溶着の有無を判定する。【選択図】図4
CONTACT FAILURE DETERMINATION METHOD AND CONTACT FAILURE DETERMINATION DEVICE
コンタクタ故障判定方法およびコンタクタ故障判定装置
2016-05-30
Patent
Elektronische Ressource
Japanisch
Europäisches Patentamt | 2023
|CONTACT DETERMINATION SYSTEM, CONTACT DETERMINATION DEVICE, CONTACT DETERMINATION METHOD AND PROGRAM
Europäisches Patentamt | 2023
|CONTACT DETERMINATION METHOD AND CONTACT DETERMINATION DEVICE
Europäisches Patentamt | 2023
|FAILURE DETERMINATION DEVICE, STORAGE MEDIUM, AND FAILURE DETERMINATION METHOD
Europäisches Patentamt | 2022
|CONTACTOR FAILURE DETERMINATION DEVICE AND CONTACTOR FAILURE DETERMINATION METHOD
Europäisches Patentamt | 2017
|