The invention belongs to the field of automobile power distribution, and particularly relates to an intelligent automobile power prediction distribution method based on hybrid power. The method comprises the following steps: (1) establishing an intelligent automobile power hybrid system model based on hybrid power logic; (2) adjusting torque is calculated through PID according to the deviation between the target rotating speed and the actual rotating speed of the power system; (3) under the steady-state working condition, the power system works on the characteristic curve, and the target torque of the power system is obtained through calculation; calculating an engine target torque through a fuzzy control rule according to the target rotating speed and the charge state of the power system; determining the rotating speed and torque of the reduction gearbox; according to the requirement of intelligent automobile hybrid power control, a regulator performance index function is designed, and the system index is made to be minimum. The hybrid intelligent automobile power prediction distribution method is simple, an existing controller can meet the required calculation speed, power output of an engine and a motor is effectively coordinated, and the oscillation problem caused by mode switching is effectively solved.
本发明属于汽车动力分配领域,具体涉及一种基于混合动力的智能汽车动力预测分配方法。本发明包括(1)建立基于混合动力逻辑的智能汽车动力混杂系统模型;(2)利用动力系统目标转速和实际转速的偏差通过PID计算调节扭矩;(3)在稳态工况下,动力系统工作在特性曲线上,计算得到电力系统目标扭矩;根据目标转速和电力系统的荷电状态通过模糊控制规则计算发动机目标扭矩;确定减速齿轮箱转速、扭矩;根据智能汽车混合动力控制的要求,设计调节器性能指标函数,使系统指标最小。该混合动力的智能汽车动力预测分配方法简单,现有的控制器可以满足其所需的计算速度,有效的协调发动机和电机的动力输出,有效解决采用模式切换引来的震荡问题。
Intelligent automobile power prediction distribution method based on hybrid power
一种基于混合动力的智能汽车动力预测分配方法
08.03.2022
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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