PROBLEM TO BE SOLVED: To avoid possibility that a voltage of a first battery becomes lower than a reference voltage value after a second battery is charged by an external power source.SOLUTION: A plug-in hybrid service vehicle comprises: a first battery 27 which is charged by an on-vehicle power generator; a second battery 30 which is charged by an external power source 28; a charge switch 44; a DC-DC converter 39; a voltage judgement part 25D, and a charge control part 25F. The charge control part 25F performs charge control in such a way that the second battery 30 is charged from the external power source 28 when it is judged by the voltage judgement part 25D that a voltage of the first battery 27 exceeds a reference voltage value required for start-up of an engine during charging by the external power source 28, and performs charge control in such a way that the first battery 27 is charged from the external power source 28 via the DC-DC converter 39 and so on prior to charging the second battery 30 when it is judged by the voltage judgement part 25D that a voltage of the first battery 27 is equal to or lower than the reference voltage value.SELECTED DRAWING: Figure 5
【課題】外部電源による第2バッテリの充電後に第1バッテリの電圧が基準電圧値を下回る虞を回避する。【解決手段】プラグインハイブリッド作業車は、車載の発電機で充電される第1バッテリ27、外部電源28で充電される第2バッテリ30、充電スイッチ44、DC−DCコンバータ39、電圧判定部25D、及び、充電制御部25Fを備え、充電制御部25Fは、外部電源28による充電中に、電圧判定部25Dにて第1バッテリ27の電圧がエンジンの始動に要する基準電圧値を超えていると判定された場合は、外部電源28から第2バッテリ30に充電し、又、電圧判定部25Dにより第1バッテリ27の電圧が基準電圧値以下であると判定された場合は、第2バッテリ30への充電に優先して、外部電源28からDC−DCコンバータ39などを経由して第1バッテリ27に充電する。【選択図】図5
PLUG-IN HYBRID SERVICE VEHICLE
プラグインハイブリッド作業車
2017-07-27
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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