Disclosed are a power split-type hybrid power system and hybrid power vehicle. The hybrid power system comprises two planetary gear mechanisms sharing a planetary gear carrier and ring gears, two electric motors (MG1 and MG2), and one engine (ICE). An output shaft of the engine (ICE) is transmissively connected to a first sun wheel shaft of a first sun wheel (S1), an input/output shaft of the first electric motor (MG1) is transmissively connected to a second sun wheel shaft of a second sun wheel (S2), and an input/output shaft of the second electric motor (MG2) is transmissively connected to the ring gears (R1 and R2). The output shaft of the engine (ICE), the input/output shaft of the first electric motor (MG1), and the input/output shaft of the second electric motor (MG2) are relatively fixed to a housing of a gearbox via braking mechanisms (B1, B2, and B3). As such, the power split-type hybrid power system is capable of ensuring that a vehicle attains a high speed in a pure electric motor drive mode, thus complying with the New European Driving Cycle and the Worldwide Harmonized Light Vehicles Test Cycles; and also is capable of implementing the engine being turned off at a high speed and an increased power performance in a low-speed state.
一种功率分流式混合动力系统及混合动力车辆。该混合动力系统包括共用行星轮架且共用齿圈的两个行星齿轮机构以及两个电机(MG1,MG2)和一个发动机(ICE)。发动机(ICE)的输出轴与第一太阳轮(S1)的第一太阳轮轴传动联接,第一电机(MG1)的输入/输出轴与第二太阳轮(S2)的第二太阳轮轴传动联接,第二电机(MG2)的输入/输出轴与齿圈(R1,R2)传动联接。发动机(ICE)的输出轴、第一电机(MG1)的输入/输出轴和第二电机(MG2)的输入/输出轴能够通过制动机构(B1,B2,B3)与变速器的壳体相对固定。这样,该功率分流式混合动力系统能够保证在纯电机驱动模式下使得车辆达到较高的速度,从而能够满足完成新欧洲驾驶循环和全球轻型汽车测试循环;并且能够实现在较高的车速下发动机也可以关闭以及在低速状态下的动力性得到提升。
POWER SPLIT-TYPE HYBRID POWER SYSTEM AND HYBRID POWER VEHICLE
功率分流式混合动力系统及混合动力车辆
2021-09-28
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 |
POWER SPLIT-TYPE HYBRID POWER SYSTEM AND HYBRID POWER VEHICLE
European Patent Office | 2020
|Power domain control system of power split type hybrid vehicle
European Patent Office | 2021
|