关键词: 太阳能；增程式发电系统；电动汽车；续航里程

Abstract: In order to cope with environmental pollution and other factors, the national level has gradually advocated and supported the development of new energy vehicles. At present, the problem of the driving mileage insufficient of battery electric vehicles is still hindering the development of new energy vehicles. In order to solve this problem, this paper carries out a research on the power supply of battery electric vehicles by solar extended-range power generation system. Four A-grade monocrystalline silicon panels are mounted on the roof of the vehicle to absorb the energy emitted by the sun, and the controller and power analyzer are used to record the power converted by the panels and the power energy that is actually charged to the battery. The controller and power analyzer are used to record the data of the electric energy converted by the power generation panel and the electric energy actually charged for the battery, and the theoretical calculation and experimental power generation are compared and analyzed. Through two sets of experiments, the fixed bench test and the mobile vehicle test, the actual converted electrical energy and the mileage can be tested. The experimental results show that the power generation of the solar cell in one day has a certain power loss from the actual power charged into the power battery pack, but it can still increase the driving mileage 20～30 km for the vehicle.

Key words: Solar energy; Extended-range power generation system; Electric vehicles; Driving mileage