The invention provides a torque distribution control method of a power split type hybrid power system. The method comprises the steps of determining the rotating speed and the torque of the first planet carrier according to the working condition of the current vehicle, and performing limiting calculation to obtain the maximum value and the minimum value of the rotating speed and the torque of thefirst planet carrier; the maximum value and the minimum value of the rotating speed and the torque of the first planet carrier are used as boundary conditions, and calculating the rotating speed and the torque of the first planet carrier when the system efficiency is optimal through an intelligent particle swarm algorithm; performing power division on the rotating speed and the torque of the firstplanet carrier when the system efficiency is optimal; and calculating the expected output rotating speeds and expected output torques of the small motor, the large motor and the engine according to the kinetic equation of the planetary gear mechanism, and sending the expected output rotating speeds and expected output torques of the small motor, the large motor and the engine to the correspondingsmall motor controller, large motor controller and engine controller for control execution. The method is simple and feasible, and the system efficiency can be improved.
本发明提供了一种功率分流式混合动力系统的扭矩分配控制方法,根据当前车辆的工况确定第一行星架的转速和扭矩并将其进行限制计算得到第一行星架的转速和扭矩的最大值和最小值,将第一行星架的转速和扭矩的最大值和最小值作为边界条件通过智能粒子群算法计算得到系统效率最优时的第一行星架的转速和扭矩,将系统效率最优时的第一行星架的转速和扭矩进行功率分流,根据行星齿轮机构的动力学方程式计算得到小电机、大电机和发动机的期望输出转速和期望输出扭矩,将小电机、大电机和发动机的期望输出转速和期望输出扭矩发送给相应的小电机控制器、大电机控制器和发动机控制器进行控制执行。本发明方法简单可行,可提高系统效率。
Torque distribution control method of power split type hybrid power system
功率分流式混合动力系统的扭矩分配控制方法
2020-06-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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