Test and Research on Energy Management Control Strategy of 4WD Plug in Hybrid Electric Vehicle

Abstract

The article researches on the energy control strategy of Energy control strategy of four-wheel drive Vehicle with Series-Parallel hybrid power system based on pattern classification. A kind of four-wheel drive hybrid system whose structure is front axle driven by series-parallel hybrid system and rear axle driven by a single motor is designed, and its components are introduced. In addition, mode switching boundary and mode switching dynamic control are designed. According to the system efficiency, the operating points of the powertrain in each mode are optimized. Finally, the economy of the system is verified in a variety of working conditions by vehicle test, and the energy-saving mechanism are verified through the analysis of working condition characteristics, working mode proportion and operating point distribution.