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介绍了一种双模式机电复合传动系统的结构及其工作模式,分析了系统的转速关系特性,指出了系统可以通过调节电机转速来优化发动机的工作点。研究了系统的转矩和功率特性,指出了系统的输出转矩是电机转矩和一部分输入转矩比例变换后叠加而成。研究了系统电力相对分流功率,其与行星排参数和双模式传动比有关。第一模式下电力分流功率大小是影响系统性能的重要因素,通过参数匹配设计,可减小电机在第一模式下的功率需求。而电机功率的选择需参考电力相对分流功率在两个模式内的极值情况。
The structure and working mode of a dual-mode electromechanical compound transmission system are introduced. The relationship between the speed characteristics of the system is analyzed. It is pointed out that the system can optimize the operating point of the engine by adjusting the motor speed. The torque and power characteristics of the system are studied. It is pointed out that the output torque of the system is the sum of the motor torque and a part of the input torque. The relative shunt power of the system power is studied, which is related to the planetary row parameters and the dual mode transmission ratio. In the first mode, the power split power is an important factor affecting the system performance. By matching the parameters, the power requirement of the motor in the first mode can be reduced. The choice of motor power needs to refer to the relative power split power in the two modes within the extreme conditions.