The embodiment of the invention provides a constant-speed cruise deceleration control method and device for a pure electric vehicle, and the method comprises the steps: obtaining a corresponding deceleration according to a deceleration instruction after the deceleration instruction is received, and calculating a needed recovery torque according to the deceleration; acquiring battery recharging power, and comparing the battery recharging power with the power required by the recovery torque; when the recharging power of the battery is smaller than the power required by the recovery torque, calculating the residual power according to the power required by the recovery torque and the recharging power of the battery; and sending the residual power to the ibooster, and completing the residual power through the ibooster. By the adoption of the method, deceleration can be achieved no matter whether deceleration recharging is allowed or not in the battery state, and the deceleration and the driving feeling of the decelerated user vehicle are kept during deceleration.
本发明实施例提供一种纯电动汽车定速巡航减速控制方法及装置,所述方法包括:接收到减速指令后,根据减速指令获取对应的减速度,并根据减速度计算需要的回收扭矩;获取电池回充功率,并将电池回充功率与回收扭矩需求的功率进行对比;当电池回充功率小于回收扭矩需求的功率,通过回收扭矩需求的功率和所述电池回充功率计算剩余功率;将剩余功率发送到ibooster,并通过ibooster完成剩余功率。采用本方法能够在电池状态无论是否允许减速回充时,都可以减速,并且在减速的时候保持减速的用户车辆的减速度及驾驶感。
Constant-speed cruise deceleration control method and device for pure electric vehicle
纯电动汽车定速巡航减速控制方法及装置
2021-04-16
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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