To provide a contactor failure determination device capable of appropriately determining a failure of a contactor provided in a vehicle.SOLUTION: A vehicle contactor failure determination device includes a detection device capable of detecting increase and decrease in a voltage of a second circuit including an external charge device. When a vehicle start request is issued, first control of closing one external charge contactor is performed, second control of closing a precharge contactor is performed after the execution of the first control, third control of closing a main contactor that is not parallel with the precharge contactor is performed after the execution of the second control, and, upon detection by the detection device that the voltage of the second circuit increases after the execution of the third control, it is determined that a failure occurs in a state where the other external charge contactor is closed.SELECTED DRAWING: Figure 8
【課題】車両に設けられたコンタクタの故障を適切に判定できるコンタクタ故障判定装置を提供する。【解決手段】外部充電装置を含む第2回路の電圧の増減を検出可能な検出装置を設け、車両起動要求が出されると、一方の外部充電コンタクタを閉成させる第1制御を実施し、当該第1制御の実施後にプリチャージコンタクタを閉成させる第2制御を実施し、当該第2制御の実施後にプリチャージコンタクタと並列されていないメインコンタクタを閉成させる第3制御を実施し、当該第3制御の実施後に第2回路の電圧が増大したことが検出装置によって検出されると、他方の外部充電コンタクタが閉成した状態で故障していると判定する。【選択図】図8
VEHICLE CONTACTOR FAILURE DETERMINATION DEVICE
車両のコンタクタ故障判定装置
2023-04-13
Patent
Electronic Resource
Japanese
CONTACTOR FAILURE DETERMINATION DEVICE AND CONTACTOR FAILURE DETERMINATION METHOD
European Patent Office | 2017
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