并联混合动力系统构型筛选及参数优化设计

This paper focuses on the screening of parallel hybrid power system configurations employing the Ravigneaux planetary gear mechanism and traditional multi-gear transmission. A comprehensive evaluation method，integrating gear design rules，dynamic characteristics rules，working mode rules，and manufacturability rules based on the lever method，is applied to analyze and screen the hybrid power system configurations. The con⁃ figuration scheme and screening process of this method are determined. Subsequently，in line with the vehicle's de⁃ sign objectives，parameters of the engine and motor are selected. The vehicle's longitudinal dynamics model is es⁃ tablished using GT-SUITE software. On this basis，transmission parameters are optimized using the Pareto frontier method. Finally，upon determining the hybrid configuration，the design parameters of the hybrid power system are optimized and determined. The feasibility of the scheme is validated through simulation，providing a theoretical ba⁃ sis for the research of parallel hybrid power systems using the Ravigneaux planetary gear mechanism and traditional multi-gear transmission.