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研究了电磁耦合混合动力公交车运行点协调控制策略,提出了发动机目标节气门开度开环控制、发电机目标转速控制、发动机实际转矩反馈和电动机转矩补偿控制的运行点协调控制基本算法,以期满足驾驶员对动力性能的需求,并保证动力传递的平稳性;同时提出了对发动机进行瞬态优化的运行点协调控制改进算法,以期避免发动机过浓喷油,并改善整车燃油经济性。仿真结果验证了运行点协调控制基本算法和改进算法的可行性,并且2种算法均达到了预期的控制目标。
The coordination control strategy of the operating point of the electromagnetic coupling hybrid bus is studied. The basic algorithm of coordinated operation of the operating point, such as the open-loop control of the target throttle opening of the engine, the target speed control of the generator, the actual torque feedback of the engine and the torque compensation control of the electric motor, , In order to meet the driver’s demand for power performance and to ensure the smoothness of power transmission. At the same time, an improved algorithm for coordinating and controlling the operating point of the transient engine is put forward in order to avoid over-concentrated engine fuel injection and improve the fuel economy of the vehicle Sex. The simulation results verify the feasibility of coordinating the basic control point algorithm and the improved algorithm. Both algorithms reach the expected control objectives.