A range-extender electric vehicle (REEV) 10, which may be a fire engine, includes a battery 22, an auxiliary power unit 28, which may be an internal combustion engine (ICE), and a generator 36 driven by the auxiliary power unit to charge the battery. An inverter 37 may be used between the generator and battery. An ancillary device 32, which may be a water pump, is mechanically driven by the auxiliary power unit and a coupling 34, such as a clutch, selectively engages and disengages the mechanical drive to the ancillary device. Gearbox 30 may be omitted from the system to drive the coupling and pump without gearing. If water inlet port 44 is connected to an external hydrant the difference in water pressure from the hydrant to a tank 38 may drive an impeller 46 to drive second generator 48 to provide additional charging of the battery.
Range extender electric vehicle with ancillary device
2022-06-08
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 |