To provide an electrically-driven work vehicle capable of further reducing fuel consumption when the capacity of a secondary battery is comparatively small.SOLUTION: An electrically-driven work vehicle includes: a main generator and an auxiliary generator driven by an engine; an electric motor for traveling driven by electric power supplied from the main generator; an auxiliary machine device driven by electric power supplied from the auxiliary generator; a regenerative device for supplying regenerative electric power generated at the time of vehicle braking of the electric motor for traveling, to the auxiliary machine device; and a battery capable of storing electric power to be supplied from the regenerative device and the auxiliary generator to the auxiliary machine device. The regenerative device determines a first electric discharge interval for discharging the battery according to a fuel consumption rate of the engine, and a second electric discharge interval for discharging the battery according to a magnitude of energy consumption of the vehicle, on the basis of a travel pattern of the electrically-driven work vehicle and the fuel consumption rate of the engine, and supplies electric power from the battery to the auxiliary machine device or the electric motor for traveling, on the basis of the first and second electric discharge intervals.SELECTED DRAWING: Figure 9
【課題】2次電池の容量が比較的小さい場合に燃料消費量をより削減することができる電気駆動作業車両を提供すること。【解決手段】エンジンにより駆動される主発電機および補助発電機と、主発電機から供給される電力により駆動する走行用電動モータと、補助発電機から供給される電力により駆動する補機装置と、走行用電動モータの車両制動時に発生する回生電力を補機装置に供給する回生装置と、回生装置及び補助発電機から補機装置に供給される電力を蓄電可能な電池とを備え、回生装置は、電気駆動作業車両の走行パターンとエンジンの燃料消費率とに基づいて、エンジンの燃料消費率に応じて電池を放電させる第1の放電区間と、車両の消費エネルギーの大きさに応じて電池を放電させる第2の放電区間とを決定し、第1及び第2の放電区間に基づいて電池から補機装置又は走行用電動モータに対して電力を供給する。【選択図】 図9
ELECTRICALLY-DRIVEN WORK VEHICLE
電気駆動作業車両
21.02.2024
Patent
Elektronische Ressource
Japanisch
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 / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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