The invention relates to the technical field of vehicle control, in particular to a control method and system for dynamically starting an engine through a dual-motor hybrid power gearbox. The control method comprises the following steps of S1, collecting state data of a vehicle in real time; s2, whether the current vehicle state meets a preset series drive condition or not is judged, and if yes, the current drive mode is converted into a series drive mode; the conversion method specifically comprises the following steps that S21, the torque of the P2 motor is gradually reduced to the preset torque, and the torque of the P3 motor is adjusted to the wheel end required torque; s22, the gear of the gearbox is switched into a neutral gear, and a clutch is closed to drag an engine; and S3, converting the P2 motor into a power generation mode, and reducing the rotating speed of the P2 motor. Through cooperative control over the P2 motor, the P3 motor, the clutch and the engine, the engine is stably started in the running process, starting impact is reduced, the driving comfort is improved, and the vehicle running efficiency is improved.
本发明涉及车辆控制技术领域,具体为双电机混合动力变速箱动态启动发动机的控制方法及系统。控制方法包括如下步骤:S1:实时采集车辆的状态数据;S2:判断当前车辆状态是否满足预设的串联驱动条件,是则将当前驱动模式转换为串联驱动模式;转换方法具体如下:S21:将P2电机的扭矩逐渐降低至预设扭矩,将P3电机的扭矩调节至轮端需求扭矩;S22:将变速箱档位切换为空挡,离合器闭合拖起发动机;S3:将P2电机转换为发电模式,并降低P2电机的转速。本发明通过对P2电机、P3电机、离合器、发动机的协同控制,实现行驶中平稳启动发动机,减小启动冲击,不仅提高了驾驶的舒适性,而且提高了车辆运行的效率。
Control method and system for dynamically starting engine of dual-motor hybrid power gearbox
双电机混合动力变速箱动态启动发动机的控制方法及系统
2024-10-22
Patent
Electronic Resource
Chinese
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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