一种混合动力车辆行进间起动发动机的控制方法、系统、车辆及存储介质,控制方法是:当车辆行进间,PCU根据功率需求,计算得出需要起动发动机时,PCU同时发起动信号给ECU和TCU,ECU负责控制继电器闭合,12V起动机工作;TCU负责开始控制K1K2滑磨,并结合K0离合器。PCU将电机扭矩与拖拽扭矩之和发送给电机,这样12V起动机和P2电机同步作用,快速将发动机拖拽至喷油转速,发动机喷油点火后,发动机转速与电机转速同步,完成整个起动发动机过程。本发明可以在成本增加有限的情况下,实现P2‑48V混合动力车辆行进间快速平稳起发动机的功能。
The invention discloses a control method and system for starting an engine during traveling of a hybrid power vehicle, the vehicle and a storage medium, and the control method comprises the steps that when the vehicle travels, a PCU calculates to obtain that the engine needs to be started according to the power requirement, the PCU simultaneously initiates a power signal to an ECU and a TCU, and the ECU is responsible for controlling a relay to be closed and controlling a 12V starter to work; and the TCU is responsible for starting to control the K1K2 to slide and grind and is combined with the K0 clutch. The PCU sends the sum of the motor torque and the dragging torque to the motor, in this way, the 12V starter and the P2 motor act synchronously, the engine is dragged to the oil injection rotating speed quickly, after the engine injects oil and is ignited, the rotating speed of the engine and the rotating speed of the motor are synchronous, and the whole engine starting process is completed. According to the invention, under the condition of limited cost increase, the function of quickly and stably starting the engine when the P2-48V hybrid power vehicle runs can be realized.
混合动力汽车行进间起动发动机的控制方法、系统、车辆及存储介质
2024-07-26
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 |