新能源电动汽车后桥同步驱动电机差速转向自动控制  

New energy electric vehicle rear axle synchronous drive motor differential steering automatic control

作　　者：黄建军 HUANG Jianjun(Liuzhou Quality Inspection and Testing Research Center,Liuzhou,Guangxi 545001,China)

机构地区：[1]柳州市质量检验检测研究中心,广西柳州545001

出　　处：《自动化与仪器仪表》2024年第12期72-75,79,共5页Automation & Instrumentation

摘　　要：为了提升新能源电动汽车的转向自动控制性能,实验设计了一种基于优化差速转向与后桥同步驱动的电车转向自动控制模型(Eelectric vehicle steering based on optimized differential steering and synchronized rear axle drive,ODS-SRAD)。模型通过引入优化的梯形转向结构,建立车辆转向过程中的数学模型,再对车辆电路逻辑进行一致化改造,实现后桥同步驱动差速转向控制,最终完成高效节能的电车转向自动控制。模型的创新点在于梯形结构的设计以及控制逻辑的后移,达到了很好的自动化效果。实验结果显示,所构建模型对寄生功率的缩减达到了6.1%,内侧车轮速度可以控制在30 m/s以下,横摆角速度和转向半径的比例协调,对转向的控制呈现高平滑度和高协调性。以上结果说明,ODS-SRAD模型在电车转向自动控制中具有较高的稳定性和精确度,对于相关行业具有很强的实用性。In order to improve the automatic steering control performance of new energy electric vehicles,an electric vehicle steering automatic control model based on optimized differential steering and synchronized rear axle drive(ODS-SRAD)was experimentally designed.The model introduces an optimized trapezoidal steering structure,establishes a mathematical model of the vehicle steering process,and then standardizes the vehicle circuit logic to achieve synchronous rear axle drive differential steering control,ultimately achieving efficient and energy-saving electric vehicle steering automatic control.The experimental results show that the constructed model reduces parasitic power by 6.1%,and the inner wheel speed can be controlled below 30m/s.The proportion of yaw rate and steering radius is coordinated,and the control of steering presents high smoothness and high coordination.The above results indicate that the ODS-SRAD model has high stability and accuracy in the automatic control of tram steering,and has strong practicality for related industries.

关 键 词：电动汽车 自动控制 差速转向 节能 稳定性 

分 类 号：TM73[电气工程—电力系统及自动化] TP73[自动化与计算机技术—检测技术与自动化装置]