The invention provides a hybrid power system, a control method and device, electronic equipment and a vehicle, the hybrid power system comprises a constant displacement pump, a hydraulic system, an engine, a continuously variable transmission and a control subsystem, the continuously variable transmission is connected with the engine, and the control subsystem is used for controlling the constant displacement pump based on the flow demand of the hydraulic system and the displacement of the constant displacement pump. And determining a target constant delivery pump rotating speed, and controlling the speed ratio of the continuously variable transmission based on the rotating speed of the engine, namely the rotating speed of the engine in the highest efficiency state and the target constant delivery pump rotating speed, so as to adjust the rotating speed of the constant delivery pump to the target constant delivery pump rotating speed. Thus, the speed ratio of the continuously variable transmission is controlled based on the rotating speed of the engine working in the highest efficiency state and the target constant displacement pump rotating speed, it can be guaranteed that the engine is in the highest efficiency state while it is guaranteed that the output flow of the constant displacement pump can meet the flow requirement of a hydraulic system, oil consumption is effectively reduced, and the stability of a hybrid power system is guaranteed.
本申请提供了一种混合动力系统、控制方法、装置、电子设备及车辆,该混合动力系统包括定量泵、液压系统、发动机、无级变速箱以及控制子系统,无级变速箱与发动机连接,控制子系统用于基于液压系统的流量需求以及定量泵的排量,确定目标定量泵转速,并基于发动机的转速,即发动机在其最高效率状态下的转速与目标定量泵转速,控制无级变速箱的速比,以将定量泵的转速调整为目标定量泵转速。这样,基于发动机工作在最高效率状态的转速和目标定量泵转速控制无级变速箱的速比,可在保证定量泵的输出流量能够满足液压系统的流量需求的同时,保证发动机处于其最高效率状态,从而有效降低油耗,保证混合动力系统的稳定性。
Hybrid power system, control method and device, electronic equipment and vehicle
混合动力系统、控制方法、装置、电子设备及车辆
2023-12-12
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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