The invention discloses a four-gear gear shifting control method for an electric automobile, wherein the four gears are the reverse gear R, the neutral gear N, the economic forward gear D and the moving forward gear S correspondingly. The method comprises the steps: enabling a whole automobile controller to receive gear signals, confirming a gear shifting operation according to the current workingcondition, setting the economic forward gear D and the moving forward gear S, and controlling different automobile speed limiting values and torque intervals and energy recovery intensity in responseto whole automobile power. In the economical forward gear, the vehicle speed and torque interval are reasonably limited, the energy recovery intensity is improved, the energy consumption caused by rapid acceleration or too large speed change can be reduced, and the efficient braking energy recovery is achieved. In the forward gear, the torque interval limitation is released, the speed limiting range is increased, and the driving pleasure and the vehicle maneuverability are improved.
本发明电动汽车四挡位换挡控制方法中四个挡位分别为倒车挡R、空挡N、经济前进挡D、运动前进挡S,整车控制器接收挡位信号,根据当前工况确认换挡操作,设置经济前进挡D,以及运动前进挡S,对应整车动力控制不同的车速限值,扭矩区间,以及能量回收强度。在经济前进挡时,合理限制车速以及扭矩区间,增加能量回收强度,可实现减少急加速或者速度变化过大,造成的能量消耗,并实现高效制动能量回收。在运动前进挡时,放开扭矩区间限制并增加速度限制范围,提升驾驶乐趣和车辆可操纵性。
Four-gear gear shifting control method for electric automobile
一种电动汽车四挡位换挡控制方法
2020-11-10
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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