摘要
为了提高电动汽车制动强度控制精度,设计了一种模糊识别制动强度控制方法。结合不同路面附着系数下制动强度来实现制动工作模式切换,并对开路面制动和转弯工况开展仿真分析。对开路面制动仿真得到系统能确保时间处于安全区间内。左右侧车轮保持同样的制动力,而滑移率则存在显著区别。转弯工况制动下前轮转向角呈现持续上升,并在3 s附近达到15°,之后保持稳定的15°转向角。通过减小左后轮滑移率与制动力,获得与目标横摆角速度相近的实际值。
In order to improve the control accuracy of electric vehicle braking intensity,a fuzzy identification braking intensity control method is designed.Combined with the braking intensity under different road adhesion coefficients,the switching process of braking mode is realized,and the simulation analysis of braking and turning conditions on the open road is carried out.The simulation results show that the braking time can be kept within the safe interval under this strength.The left and right side wheels maintain the same braking force,but the slip rate is significantly different.According to braking simulation in turning conditions,the front wheel steering angle continues to rise and reaches 15°around 3s,and then maintains a stable 15°steering angle.By reducing the slip rate and braking force of the left rear wheel,the actual yaw velocity of the target is obtained.
作者
王雪
郇庆婷
冀梦甜
Wang Xue;Huan Qingting;Ji Mengtian(School of Mechanical and Electrical Engineering,Huanghe Jiaotong University,Jiaozuo Henan 454950,China;Henan Intelligent Manufacturing Technology and Equipment Engineering Technology Research Center,Jiaozuo Henan 454950,China)
出处
《山西电子技术》
2024年第1期35-37,共3页
Shanxi Electronic Technology
关键词
电动汽车
制动模式
稳定性
能量回收
工况分析
electric vehicle
braking mode
stability
energy recovery
operating mode analysis
