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 is provided with a detection device capable of detecting increase and decrease in a voltage of a second circuit including an external charge device. When an external charge request is issued, first control of closing each 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 second main contactor is performed after the execution of the second control, and, upon detection by the detection device that the voltage of the second circuit does not increase after the execution of the third control, it is determined that a failure occurs in a state where at least one external charge contactor is opened.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、外部充電要求が出されると、各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、第2制御の実施後に第2メインコンタクタを閉成させる第3制御を実施し、第3制御の実施後に第2回路の電圧が増大しないことが検出装置によって検出されると、少なくとも一方の外部充電コンタクタが開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
|