To provide an electric vehicle power supply capable of suppressing the overvoltage on a smoothing capacitor after the state of an electric vehicle is set to a travel-permitted state.SOLUTION: When a voltage of a first power storage unit is equal to or higher than a voltage of a second power storage unit after precharging of a first capacitor, a second capacitor, and a smoothing capacitor is completed at startup, an electric vehicle power supply according to the present invention sets the state of an electric vehicle to a travel-permitted state after a first switch element is turned on, and when the voltage of the first power storage unit is less than the voltage of the second power storage unit, the electric vehicle power supply sets the state of the electric vehicle to the travel-permitted state after a third switch element is turned on.SELECTED DRAWING: Figure 3
【課題】電動車両の状態を走行許可状態に設定した後に平滑コンデンサに過電圧がかかることを抑制可能な電動車両の電源装置を提供すること。【解決手段】本発明に係る電動車両の電源装置は、起動時に第1コンデンサ、第2コンデンサ、及び平滑コンデンサのプリチャージが完了した後、第1蓄電部の電圧が第2蓄電部の電圧以上である場合、第1スイッチ素子をオンした後に電動車両の状態を走行許可状態に設定し、第1蓄電部の電圧が第2蓄電部の電圧未満である場合には、第3スイッチ素子をオンした後に電動車両の状態を走行許可状態に設定する。【選択図】図3
ELECTRIC VEHICLE POWER SUPPLY
電動車両の電源装置
2020-05-21
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen |
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