The invention discloses a power control method and device, a vehicle control uni. The extended-range electric vehicle comprises a single-stage speed reducer and an electric clutch which are arranged among a generator, an engine and a driving motor. The method comprises the steps that when an electric quantity is sufficient and no power is needed, the electric clutch is disconnected and enters a pure electric mode; when power is needed, the electric clutch is connected, the engine is controlled to work, the generator is in a discharging state, the single-stage speed reducer is used for coupling, and a super driving mode is started; and during high-speed running and in the case of insufficient electric quantity, the electric clutch is connected, the engine drives the driving motor, and the generator is in a zero-torque state. Therefore, the extended-range electric vehicle overcomes the problems that in the related art, when an extended-range electric vehicle runs at a high speed, an engine cannot work in an optimal economic interval, consequently, oil consumption is increased, the economical efficiency of fuel oil is poor, secondary energy conversion losses exist, driving efficiency is low, the number of working modes is small, and different driving requirements of drivers cannot be met.
本申请公开了一种动力控制方法、装置、整车控制器及增程式电动汽车,其中,增程式电动汽车包括设置于发电机、发动机和驱动电机之间的单级减速器和电动离合器,方法包括:在电量充足且无动力需求时,电动离合器断开进入纯电模式,有动力需求时电动离合器连接,控制发动机工作、发电机处于放电状态,并利用单级减速器进行耦合,进入超级驱动模式;在高速行驶且电量不足时电动离合器连接,发动机拖动驱动电机,发电机处于零扭矩状态。由此,解决了解决相关技术中增程式电动汽车在高速行驶时发动机无法在最优经济区间工作,导致油耗增加、燃油的经济性较差,且存在能量二次转换的损失,驱动效率较低,工作模式少无法满足驾驶员的不同驾驶需求等问题。
Power control method and device, vehicle control unit and extended-range electric vehicle
动力控制方法、装置、整车控制器及增程式电动汽车
2021-06-18
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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