The invention relates to the technical field of hybrid power control, and provides a hybrid electric vehicle and a sliding energy recovery method and device.The method comprises the steps that when a motor is in the state that the sliding energy recovery function is activated, the current vehicle speed and the vehicle speed at the last moment are obtained; according to the current vehicle speed and the vehicle speed at the previous moment, the average value of the vehicle speed change rate is obtained through calculation; based on the average value of the vehicle speed change rate, a torque subarea where the sliding torque is located is determined; determining a sliding recovery torque strategy according to the torque partition, and obtaining an initial sliding recovery torque according to the sliding recovery torque strategy; correcting the initial sliding recovery torque based on a pre-calculated correction coefficient to obtain a final sliding recovery torque; wherein the correction coefficient is obtained through calculation according to the mass of the target vehicle, the slope of the current road and the current gear of the target vehicle. The problem that the sliding recovery torque cannot be adjusted in a self-adaptive mode when sliding energy is recovered is solved.
本发明涉及混合动力控制技术领域,提供一种混合动力汽车、滑行能量回收方法和装置,所述方法包括:在电机处于滑行能量回收功能激活的状态下,获取当前车速和上一时刻车速;根据所述当前车速和所述上一时刻车速,计算得到车速变化率的平均值;基于所述车速变化率的平均值,确定滑行扭矩所在的扭矩分区;根据所述扭矩分区确定滑行回收扭矩策略,并根据所述滑行回收扭矩策略得到初始滑行回收扭矩;基于预先计算的修正系数对所述初始滑行回收扭矩进行修正,以得到最终滑行回收扭矩;其中,所述修正系数是根据目标车辆的质量、当前道路的坡度,以及所述目标车辆的当前挡位进行计算得到的。解决了滑行能量回收时无法自适应调节滑行回收扭矩大小的问题。
Hybrid electric vehicle and sliding energy recovery method and device
混合动力汽车、滑行能量回收方法和装置
2024-01-26
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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