不同能量管理策略的增程电动汽车排放的实际道路试验

Several real driving tests were done on different extended-range electric vehicles to investigate the influence of two kines of energy management strategies at two driving conditions on the emission from extended-range electric vehicles. The instantaneous high emission set (IHES) was obtained by clustering the emission data. The influence of internal parameters such as engine speed and throttle position on instantaneous high emission of carbon monoxide (CO) and particle number (PN) was analyzed. The experimental results show that energy management strategies can significantly affect the distribution regularity of instantaneous high CO emissions. Compared with the power following strategy, the multi-point control strategy produces instantaneous high CO emissions when the vehicle speed is high. Different driving behaviors have no significant influence on the distribution regularity of instantaneous high CO and PN emissions in extended-range electric vehicles. However, the engine coolant temperature is relatively low under congestion road conditions, resulting in more PN instantaneous high emissions during restart.