关键词: 升压模块；混合动力系统；驱动电机；电机控制；速比匹配；策略优化

Abstract: As the user's pursuit of strong power and low fuel consumption of hybrid electric vehicles under different working conditions is getting higher and higher, the booster module is equipped, which is bidirectional direct current to direct current (DC/DC) converters become can meet the user's requirements. This paper mainly aims at the design changes of four dimensions of motor, electronic control, speed ratio matching and strategy optimization after the booster module is applied to the hybrid electric vehicle, and analyzes the design logic of the hybrid electric driving force system and describes the technical difficulties that may be encountered in the application of each subsystem after the booster module is added. Some design considerations are put forward for improving power performance and fuel consumption of hybrid electric vehicles by using booster module.

Key words: Booster module; Hybrid power system; Drive motor; Motor control; Speed ratio matching; Strategy optimization