The invention discloses a hybrid power series-parallel power assembly system and a control method thereof, and belongs to the field of gearbox systems. According to the hybrid power series-parallel type power assembly system and the control method thereof, the torque and the rotating speed of an engine are decoupled through double motors so that it can be guaranteed that the engine works in the optimal economic zone, and a generator EM1 is connected with a sun gear of a first planetary gear to achieve the speed regulation function of the engine; the driving motor EM2 is connected with a sun gear of the second gear, and the torque adjusting function of the engine is achieved. Meanwhile, the first planet row is provided with a mode selection mechanism, an OD mode, namely an overspeed mode, can be achieved when a sun gear of the first planet row is locked, and the economical efficiency of the whole vehicle under the high-speed working condition is guaranteed; when the whole vehicle is in a pure electric mode, the planet carrier of the first planet row is locked to prevent the engine from rotating reversely, and meanwhile, when the required torque of a wheel edge is large, a dual-motor driving mode can be achieved by means of the mechanism.
本发明公开了一种混合动力混联式动力总成系统及其控制方法,属于变速箱系统领域。一种混合动力混联式动力总成系统及其控制方法,借助双电机分别将发动机的扭矩、转速解耦,以保证发动机工作于最优经济区,其中发电机EM1与第一行星齿轮的太阳轮连接,实现对发动机的调速功能;驱动电机EM2与第二齿轮的太阳轮连接,实现对发动机的调扭功能;同时第一行星排具有模式选择机构,锁止第一行星排的太阳轮时可实现OD模式,即超速模式,保证整车在高速工况下的经济性;当整车处于纯电模式下时,锁止第一行星排的行星架可防止发动机反转,同时在轮边需求扭矩较大时,借助此机构可实现双电机驱动模式。
Hybrid power series-parallel power assembly system and control method thereof
一种混合动力混联式动力总成系统及其控制方法
2023-05-23
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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