The invention relates to the technical field of hybrid electric vehicles, in particular to a method for controlling the starting process of a power split type hybrid power system and a system applying the method. The method comprises the steps that the starting stage of the power split type hybrid power system is determined, and the starting stage of the power split type hybrid power system comprises a starting initial stage and a starting middle stage; if the starting stage of the power split type hybrid power system is the initial starting stage, torque consumed by a gear ring is calculated, and the power split type hybrid power system is controlled based on the torque consumed by the gear ring; and if the stage of the power split type hybrid power system is the starting middle stage, the power split type hybrid power system is controlled to be switched between a rotating speed control mode and a torque control mode. The problem that part of starting torque generated when a pure electric mode is switched to a hybrid mode in the whole vehicle running process is transmitted to a transmission system is solved, and the power performance, smoothness and comfort of whole vehicle running are improved.
本申请涉及混合动力汽车技术领域,特别是涉及功率分流式混动系统启动过程控制方法及应用其的系统。所述方法包括:确定所述功率分流式混动系统所处的启动阶段,其中,功率分流式混动系统所处的启动阶段包括启动初始阶段和启动中间阶段;若功率分流式混动系统所处的启动阶段是所述启动初始阶段,计算齿圈消耗的扭矩,并基于齿圈消耗的扭矩控制所述功率分流式混动系统;若功率分流式混动系统所处的阶段是所述启动中间阶段,控制所述功率分流式混动系统在转速控制模式和扭矩控制模式间切换。本申请解决了整车行驶过程中由纯电动切换至混动模式时产生的部分启动扭矩传递到传动系的问题,使整车运行的动力性、平顺性、舒适性提升。
Starting process control method of power split type hybrid power system and system applying starting process control method of power split type hybrid power system
功率分流式混动系统启动过程控制方法及应用其的系统
2024-03-26
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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