电动汽车坡道辅助功能策略开发  

Development of Ramp Auxiliary Function Strategy for Electric Vehicles

作　　者：王金桥 汤庆涛 高洁 王新树 白彦梅 WANG Jinqiao;TANG Qingtao;GAO Jie;WANG Xinshu;BAI Yanmei

机构地区：[1]奇瑞新能源汽车股份有限公司,芜湖241000

出　　处：《上海汽车》2022年第11期19-24,共6页Shanghai Auto

摘　　要：为了解决电动汽车在坡道起步时油门刹车协调困难容易引发事故的问题,文章提出一种电动汽车基于电机零转速的坡道辅助功能策略,能够提升电动汽车在坡道上停车、起步的驾驶感受。通过对车辆在坡道上的动力学分析,建立了车辆在坡道上的动力学模型,制定了坡道辅助功能架构和电机控制策略。实车测试结果表明,在坡道上激活功能时溜车距离较小,验证了该策略的可行性,提升了电动汽车在坡道上的驾驶性,能够有效帮助驾驶员在坡道上实现平稳提车和起步。In order to solve the problem that it is difficult to coordinate the throttle and brake when the electric vehicle starts on the ramp,and it is easy to cause accidents,a ramp auxiliary function strategy based on the zero speed of the motor is proposed,which can improve the driving experience of the electric vehicle when it stops and starts on the ramp.Through the dynamic analysis of the vehicle on the ramp,the dynamic model of the vehicle on the ramp is established,and the ramp auxiliary function architecture and motor control strategy are formulated.The real vehicle test results show that the sliding distance is small when the function is activated on the ramp,which verifies the feasibility of the strategy,improves the driveability of the electric vehicle on the ramp,and can effectively help the driver to achieve a smooth pick-up and start on the ramp.

关 键 词：坡道辅助 功能架构 电机控制 策略 电动汽车 

分 类 号：U469.72[机械工程—车辆工程]