轿车轮边缓速器制动过程的仿真分析  

Simulation Analysis on Braking Process of Wheel Retarder of Car

作　　者：何仁[1] 丁福生[1] 马承广[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《重庆工学院学报》2007年第21期17-20,共4页Journal of Chongqing Institute of Technology

基　　金：教育部博士点学科专项基金(20060299010)

摘　　要：介绍了轮边缓速器的结构和工作原理,基于Matlab/Simulink仿真技术,建立了轿车轮边缓速器的动力学模型,对轮边缓速器的制动过程进行仿真.根据速度信号对输入电流大小进行控制,使得汽车在高速情况下,轮边缓速器产生合适的制动力矩,并将轮胎的滑移率控制在最佳的滑移率附近,迅速降低汽车行驶速度,使汽车处于稳定的制动状态.通过与ABS的仿真结果对比,表明轮边缓速器具有良好的制动性能.The structure and work principle of the wheel retarder are presented briefly in this paper. Based on the technology of Matlab/Simulink, the dynamic model of the wheel retarder of a ca is established to simulate the wheel retarder＇ s braking process. The size of the input current can be controlled through vehicle speed signals. Thus, when a car is at high speed, the wheel retarder can produce the appropriate brake torque and make the tire＇s slip ratio at the range of a perfect slip ratio to reduce the car running speeds rapidly, and make it at a steady brake state. Compared with the simulation of ABS, the brake perfomance of the wheel retarder is good.

关 键 词：轮边缓速器 仿真 MATLAB/SIMULINK 制动力矩 

分 类 号：U463.5[机械工程—车辆工程]