摘要
基于线性回归方法将传统操纵稳定性数据处理流程中的多次拟合环节优化为一次拟合,并阐述了拟合次数对汽车操纵稳定性客观评价指标的影响。将优化前、后的数据处理方法用于稳态回转和正弦输入两个试验进行对比,结果表明,优化后的方法在试验数据一致性不良的情况下能更好的保证工况极限区域客观指标获取的准确性。
In the conventional handling stability processing flow, the multiplex fitting is optimized to single fitting based on linear regression method, and the influence of number of fitting on objective evaluation index of vehicle handling stability is elaborated. The original data processing method and the optimized data processing method are applied in stable steering test and sine-input test for comparison. The results show that the optimized method can ensure accuracy of the objective index acquisition in the extreme condition area even with poor consistency of test data.
出处
《汽车技术》
北大核心
2016年第2期29-32,共4页
Automobile Technology
关键词
整车
操纵稳定性
客观评价指标
数据拟合
Vehicle
Handling stability
Objective evaluation index
Data fitting
