半挂汽车列车转弯制动稳定性模糊控制  

Fuzzy Control of Tractor-semitrailer Cornering Braking Stability

作　　者：李臣[1,2,3] 李兴虎[1,2] 晋杰[1,2] 

机构地区：[1]交通运输部公路科学研究院,北京100088 [2]运输车辆运行安全技术交通行业重点实验室,北京100088 [3]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《公路交通科技》2014年第11期147-152,共6页Journal of Highway and Transportation Research and Development

基　　金：交通运输部科技项目(2011318223450);中央级公益性科研所基本科研业务费专项资金项目(2014-9013)

摘　　要：针对半挂汽车列车转弯制动时易发生折叠等危险工况的现象,采用Trucksim和Simulink联合仿真的方法,建立了半挂汽车列车转弯制动的动力学模型,并利用实车道路试验数据验证了模型的准确性。设计了半挂汽车列车转弯制动稳定性的控制器和模糊控制策略,并选择高、中、低三种附着系数路面对模糊控制策略和传统逻辑门限控制策略的效果进行了对比分析。结果表明:半挂汽车列车在三种附着系数路面上转弯制动时,模糊控制比逻辑门限控制在车辆制动稳定性能上有所改善,可有效地缩短制动距离和预防折叠现象的发生。Folding and other dangerous conditions usually occur when tractor-semitrailer cornering braking. To cope with this phenomenon, a dynamic model of tractor-semitrailer cornering braking is established by using Trncksim and Simulink co-simulation method. The accuracy of the model is tested and verified by comparing model output with data of tractor-semitrailer road test. The controller and the fuzzy control strategy for tractor-semitrailer cornering braking stability are designed. The pavements which have high, medium and low adhesion coefficients are selected to comparatively analyze the effects of fuzzy control strategy and traditional logic threshold control strategy. The results indicate that when cornering braking on the abovementioned 3 pavements for tractor-semitrailer, the braking stability of vehicle adopting fuzzy control is improved compared to that of vehicle adopting logic threshold control and the former can effectively shorten braking distance and prevent folding of tractor-semitrailer.

关 键 词：汽车工程 半挂汽车列车 Trucksim SIMULINK 联合仿真 转弯制动 模糊控制 

分 类 号：U461.3[机械工程—车辆工程]