MagicFormula轮胎模型参数辨识的一种溷合优化方法.pdfVIP

2007 ( 29 ) 3 A utomo tive Eng inee ring 2007 ( V o.l 29) N o. 3 2007058 M ag ic Form ula 1 1 1 2 张云清 陈 伟 陈立平 杨景周 ( 1华中科技大学 CAD 中心 武汉 430074; 2爱荷华大学 CAD 中心 爱荷华 IA 52242 U. S. ) [ ] M ag ic Formu la(M F) M F M F : M ag ic Formu la; ; ; A H ybr id Opt mi ization on Param eters Identif ication for M ag ic Form ula T ireM ode l 1 1 1 2 Zhang Yunqing , Chen W e i, Chen Lip ing Y ang Jingzhou 1Centerf or ComputerA ided Design, H uazhong University of Science and Technology, Wuhan 430074; 2Centerf or ComputerA ided Design, the University of Io a, Io a City IA52242, U. S. [Abstract] For overcom ing the difficu lty in ident ify ing the param eters of h igh non linearity M ag ic Formu la ( MF ) tire m odel w idely u sed in vehic le dynam ics study a hybrid optmi ization approach is presented b ased on genet ic a lgorithm ( GA ) and num erical optmi ization algorithm. In the opt mi ization process the approx mi ate optmi al so lu t ions are obtained f irst by u sing GA then the accurate p aram eters are identif ied by num erica l optmi ization and fi nally the t ire cornering characterist ics are ca lculated u sing p aram eters identified. The resu lts are very close to the expermi ental data. K eyw ord s M agic Form u la tire m ode;l Hybr id optim ization; Param e ter id entification; G enetic a lgo r ithm M F MF