基于神经网络PID控制的客车ECAS设计与实现  

Design and Realization of Passenger Bus ECAS based on Neural Network PID Control

作　　者：全力[1] 彭桂雪[1] 彭彦松[1] 常辉[1] 徐兴[1] 

机构地区：[1]江苏大学

出　　处：《汽车技术》2009年第11期8-11,共4页Automobile Technology

基　　金：浙江省重点科技专项重点项目(编号:2006C11089)

摘　　要：以飞思卡尔MC9S08GB60单片机为控制核心,以亚星YBL6891H型客车为试验对象,针对空气悬架系统本身的非线性特性,采用神经PID控制算法,设计了一种通过检测车身高度对空气弹簧进行充排气,进而改变弹簧刚度的客车电控空气悬架系统。根据悬架评价指标建立了电控悬架的2自由度1/4车辆模型,通过仿真验证了该悬架系统对悬架动行程、车轮动载荷及车身垂直加速度这3项汽车行驶平顺性评价指标的改善,最后通过试验验证了所设计控制策略的正确性。An electronically controlled air suspension system （ECAS） for passenger bus was designed in which air spring is inflated and deflated according to body height detected and spring stiffness is thus changed with neutral PID control algorithm specific to nonlinear characteristic of air suspension system, with Yaxing YBL6891H bus as test object and Freescale MC9S08GB60 single chip as control core. Two degrees of freedom 1/4 vehicle model for electronically control suspension was established in accordance with suspension assessment index, improvement achieved in three vehicle riding comfort assessment index, namely suspension dynamic travel, wheel dynamic load and vehicle vertical acceleration by this suspension system was verified by simulation, finally correctness of the designed control strategy was validated by test.

关 键 词：大型客车 行驶平顺性 电控空气悬架 神经网络PID控制 

分 类 号：U463.334.2[机械工程—车辆工程]