Abstract
Typical automotive trips are within the driving range of efficient electric vehicles (EVs), but sometimes exceeding EV range is needed for occasional trips. This paper proposed a new kind of range extended electric vehicle. A mobile generator set is used as a range extender, when assembled in an EV, effectively converts the EV to series-hybrid mode for long trips. The new kind of range extended EV, which integrates the charger, rectifier and DC/DC into a charger, is more suitable for use in low-speed micro EVs than Plugin Electric Vehicle (PHEV) and a Range Extender Trailer (RXT) system. The fuel economy and main performance criteria of the new range extended EV are shown in this paper. In some drive cycles, the new range extended EV has a better fuel economy than PHEV and RXT system.
Highlights
Hybrid Electric Vehicle (HEV), which is aimed to reduce fuel consumption, is becoming popular
Plug-in Electric Vehicle (PHEV), which is regarded as a pure electric vehicles (EVs) for short range driving, had become popular to minimize the use of gasoline
The Range Extender Trailer (RXT) is replaced by a mobile generator set, which can be assembled in the trunk of EV for long trips
Summary
Hybrid Electric Vehicle (HEV), which is aimed to reduce fuel consumption, is becoming popular. A Range Extender Trailer (RXT) for Electric Vehicle is motivated by the limitations in existing batteries for providing extended range for electric vehicle [1] This RXT carries ICE only in the case of long distance use. A trailermounted generator-set can extend the range and increase the utility of a battery-powered electric vehicle if it provides adequate power for sustained highway cruising and does not create unacceptable inconvenience for the user. Such EVs will require the use of the RXT only for long trips during low battery State-Of-Charge (SOC). The new range extended EV will have smaller rolling resistance and air resistance than the RXT system
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