基于正交试验法的纯电动赛车动力参数优化  

Dynamic Parameter Optimization of Pure Electric Racing Car Based on Orthogonal Test Method

作　　者：陆强 郑燕萍[1] LU Qiang;ZHENG Yanping(College of Automobile and Traffic Engineering,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学汽车与交通工程学院,南京210037

出　　处：《森林工程》2021年第3期88-94,102,共8页Forest Engineering

基　　金：2017年江苏省重点研发计划(BE2017008)。

摘　　要：为保证续驶里程的前提下,提高纯电动赛车的动力性能和比赛竞争力,确定赛车整车参数与动力性能目标,对电机、电池和主减速比等动力参数进行设计及匹配计算,通过CRUISE仿真软件搭建整车模型,并建立75 m直线加速、最高车速与NEDC循环工况等任务,利用正交试验法,采用三因素三水平对赛车电机的额定功率、额定转速和传动比进行优化组合,运用极差分析法对仿真结果计算分析,对优化后的动力参数进行仿真。优化仿真结果表明:与原设计方案相比,赛车的75 m直线加速时间为3.98 s,缩短了2.926%;最高车速达到164 km/h,提高了9.342%;最大续驶里程达到30.143 km,提高了0.685%。研究结果表明正交试验法可以对赛车动力参数优化的研究提供一定参考。In order to ensure the continuous driving range on the premise of improving the power performance and competition competitiveness of pure electric racing cars,the vehicle parameters and dynamic performance targets of the racing cars were determined,and the motor,battery,main reduction ratio and other dynamic parameters were designed and matched.The vehicle model was built by Cruise simulation software,and 75 m linear acceleration,top speed with the NEDC cycle conditions were established.Using the orthogonal experiment method,the three factors and three levels of car motor rated power,rated speed and transmission ratio was optimized combination.The range analysis method was used to calculate and analyze the simulation results,and the dynamic parameters after optimization were simulated.The simulation results showed that,compared with the original design scheme,the 75 m linear acceleration time of the race car was 3.98 s,which was shortened by 2.926%.The maximum speed reached 164 km/h,increased by 9.342%.The maximum driving range reached 30.143 km,increased of 0.685%.The research content of this paper shows that the orthogonal test method can provide a certain reference for the research on the optimization of dynamic parameters of racing cars.

关 键 词：电动方程式赛车 动力系统 参数匹配 正交试验 

分 类 号：U463.1[机械工程—车辆工程]