基于稳态插值模型的动态车轮模型  

A Dynamic Wheel Model Based on Steady-state Interpolation Model

作　　者：管欣[1] 段春光[1] 卢萍萍[1] 吴玉杰[1] 

机构地区：[1]吉林大学,汽车仿真与控制国家重点实验室,长春130022

出　　处：《汽车工程》2014年第6期720-724,739,共6页Automotive Engineering

基　　金：国家863计划项目(2006AA110102)资助

摘　　要：针对传统的稳态轮胎模型缺乏对低速区轮胎与路面之间摩擦力的精确描述,导致车辆在停车工况下仿真不准,车辆具有残余速度的问题,吉林大学汽车仿真与控制国家重点实验室开发了动态车轮模型。该模型将轮胎胎冠部分假设为刚性环,而刚性环与轮辋之间通过六向弹簧阻尼器连接,以模拟胎体的弹性。提出了刚性环与路面之间动、静摩擦力分离求解的建模方法。建立了刚性环动力学子系统,基于C语言开发了仿真程序,并嵌入到复杂车辆模型中。仿真结果表明,采用该模型,车辆可以平稳起步并实现完全停车。Aiming at the problem that the traditional steady-state tire model is inadequate to precisely describe the friction force between tire and road surface in low speed zone, leading to inaccurate simulation results in stopping condition with residual vehicle speed, the state key laboratory of automotive simulation and control in Jilin University has developed a dynamic wheel model. The model simplifies the tire crown as a rigid-ring, which is con-nected to wheel rim through six-direction spring-damper representing the elasticity of tire carcass. A modeling scheme is proposed, in which the dynamic and static friction forces between rigidring and road surface are calculat-ed separately. With the dynamics subsystem of rigid ring set up, a simulation program is developed using C language and embedded into sophisticated vehicle model with a simulation conducted. The results show that with the model, the simulated vehicle can start smoothly and stop completely without nonzero residual speed.

关 键 词：车辆模型 动态车轮模型 动静摩擦 稳态插值模型 

分 类 号：U467[机械工程—车辆工程]