The embodiment of the invention provides an energy distribution method and control method for a light hybrid system and the light hybrid system, and the method comprises the steps: obtaining a service power limit PBSG of a BSG through calculation on the premise of meeting the target power PESC of an electric supercharger and the power PDDC of a DCDC inverter; acquiring a current limit value IBSG of the BSG according to the service power limit value PBSG, and acquiring a torque limit value Tq of the BSG according to the current limit value IBSG; the torque limit value Tq of the BSG is the maximum torque output by using a power limit value PBSG, namely the maximum torque capable of being output by the BSG on the premise that an electric supercharger and a DCDC inverter work normally, the output torque of the BSG is controlled to be smaller than the torque limit value Tq, and the energy of a battery is supplied to the BSG on the premise that the electric supercharger and the DCDC inverter work normally. The energy of the light mixing system is reasonably distributed, so that the performance of the electric supercharger is preferentially guaranteed.

    本发明的实施例提供了一种轻混系统的能量分配方法、控制方法及轻混系统,在满足电动增压器的目标功率PESC和DCDC逆变器的功率PDCDC的前提下,通过计算得到BSG的使用功率限值PBSG;根据所述使用功率限值PBSG,获取BSG的电流限值IBSG,根据所述电流限值IBSG,获取BSG的扭矩限值Tq;所述BSG的扭矩限值Tq在使用功率限值PBSG输出的最大扭矩,即在满足电动增压器和DCDC逆变器正常工作的前提下,BSG能够输出的最大扭矩,控制BSG的输出扭矩小于所述扭矩限值Tq,电池的能量在保证电动增压器和DCDC逆变器正常工作的前提下,再为BSG提供能量,通过对轻混系统的能量进行合理的分配,从而实现了电动增压器效能的发挥得到优先保障。


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    Title :

    Energy distribution method and control method of light mixing system and light mixing system


    Additional title:

    一种轻混系统的能量分配方法、控制方法及轻混系统


    Contributors:

    Publication date :

    2022-07-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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