The invention relates to an idling power generation method and device of a hybrid vehicle and the vehicle. The method comprises the steps that when the hybrid power vehicle is in an idling power generation state, obtaining the temperature of a power battery of the hybrid vehicle; determining a target torque of a belt driven starter generator (BSG) of the hybrid vehicle according to the temperatureof the power battery; determining one or more intermediate torques between the initial torque and the target torque of the BSG; determining the air inflow increment of the engine according to the intermediate torque closest to the initial torque; determining the fuel injection quantity of the engine according to the determined air inflow increment; controlling the engine to operate according tothe determined fuel injection quantity; and determining the air inflow increment of the engine according to the intermediate torque closest to the current torque of the BSG until the torque of the BSGreaches the target torque. Thus, when the hybrid vehicle performs idling power generation, the fluctuation of the rotating speed of the engine can be reduced, so that the wobble of the engine is reduced, and the idling speed of the engine is stabilized.
本公开涉及一种混合动力车辆的怠速发电方法、装置、车辆。所述方法包括:当混合动力车辆处于怠速发电状态时,获取混合动力车辆的动力电池的温度;根据动力电池的温度,确定混合动力车辆的皮带传动起动发电机BSG的目标扭矩;确定BSG的初始扭矩和目标扭矩之间的一个或多个中间扭矩;根据与初始扭矩最接近的一个中间扭矩确定发动机的进气量增量;根据所确定的进气量增量确定发动机的喷油量;控制发动机以所确定的喷油量运行;根据与BSG的当前扭矩最接近的一个中间扭矩确定发动机的进气量增量,直至BSG的扭矩达到目标扭矩。这样,在混合动力车辆进行怠速发电时,能够减小发动机的转速波动,从而减小发动机的抖动,稳定发动机的怠速。
Idling power generation method and device of hybrid vehicle and vehicle
混合动力车辆的怠速发电方法、装置、车辆
2020-05-08
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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