The invention discloses a torque distribution method for a hybrid vehicle model in an ECVT mode and a hybrid vehicle. The method comprises the steps that the total engine required power is determined according to the vehicle operation working condition and the power system state; determining the final target rotating speed of the engine according to the total engine demand power, the difference value between the current electric quantity of the high-voltage battery and the target electric quantity, the engine water temperature, the atmospheric pressure and the vehicle speed; and determining the torque distribution of the engine, the generator and the driving motor according to the total engine demand power, the final target rotating speed of the engine and the actual rotating speed of the engine. According to the method, factors such as vehicle operation conditions, vehicle power system states and environmental changes are fully considered, the torque distribution method in the ECVT mode is designed, and different torque distributions are carried out under different vehicle operation conditions, vehicle power system states and environmental factors; and the fuel economy and NVH (Noise Vibration and Harshness) performance of the whole vehicle are improved on the premise of ensuring that requirements of a driver
本发明公开了一种混动车型ECVT模式下的扭矩分配方法及混动车辆,该方法包括:根据车辆运行工况及动力系统状态确定总的发动机需求功率;根据总的发动机需求功率、高压电池当前电量与目标电量的差值、发动机水温、大气压力以及车速确定发动机最终目标转速;根据总的发动机需求功率、发动机最终目标转速以及发动机实际转速确定发动机、发电机、驱动电机的扭矩分配。本发明充分考虑车辆运行工况、车辆动力系统状态以及环境变化等因素,设计了ECVT模式下的扭矩分配方法,不同车辆运行工况、车辆动力系统状态及环境因素下进行不同的扭矩分配,保证驾驶员需求被正确执行的前提下提高整车燃油经济性及NVH性能。
Torque distribution method under ECVT mode of hybrid power vehicle type and hybrid power vehicle
一种混动车型ECVT模式下的扭矩分配方法及混动车辆
27.10.2023
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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