The invention discloses an acceleration control method of an electric vehicle, and relates to the technical field of new energy vehicles, and the acceleration control method comprises the following steps: S1, the vehicle is selected to enter a power mode or an economic mode according to the accelerator opening A, the current vehicle speed V and the current acceleration a in the driving process ofthe vehicle; s2, the acceleration is not limited when the power mode is entered; and S3, when the vehicle enters the economic mode, the full-speed range of the vehicle is divided into a plurality of vehicle speed intervals, acceleration limit values are set in the vehicle speed intervals, and the output torque of a motor is controlled according to the acceleration limit value in the vehicle speedinterval where the current vehicle speed V is located so as to realize segmental limitation of the acceleration. When the vehicle enters the economic mode, the full-speed range is segmented, and the acceleration limit value of each segment is set, so that the acceleration of the vehicle is gentler, the overall performance is more excellent, the riding comfort of people is fully guaranteed, and thesafety and economy of the vehicle are effectively improved.
一种电动汽车的加速度控制方法,涉及新能源汽车技术领域,包括如下步骤:S1、根据车辆行驶过程中的油门开度A、当前车速V和当前加速度a选择车辆进入动力模式或者经济模式;S2、进入动力模式时不对加速度进行限制;S3、进入经济模式时,将车辆的全速度范围划分为多个车速区间并设定各车速区间内的加速度限值,根据当前车速V所在的车速区间内的加速度限值对电机输出扭矩进行控制,从而实现加速度的分段限制。本发明在车辆进入经济模式时,将全速度范围进行分段,并设定各个分段的加速度限值,由此使得车辆的加速更平缓,整体性能更优越,充分保证了人们的乘坐舒适性,并有效提高了车辆的安全性和经济性。
Acceleration control method of electric automobile
一种电动汽车的加速度控制方法
2020-05-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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