基于GPC的稀燃天然气发动机空燃比自适应控制  

Self-adaptive Control of Air-fuel Ratio for Lean Burn CNG Engine Based on GPC

作　　者：刘志远[1] 王都[1] 游海翔 冒晓建[1] 卓斌[1] 

机构地区：[1]上海交通大学汽车电子技术研究所,上海200240

出　　处：《车用发动机》2009年第4期41-44,共4页Vehicle Engine

基　　金：国家"八六三"计划节能与新能源重大专项(2006AA11A1A9)

摘　　要：建立了电控单点喷射稀燃天然气发动机的CARIMA模型,设计了广义预测自适应空燃比控制器。采用Matlab/Simulink建立了仿真模型,并进行了仿真对比。结果表明,与PID控制算法相比,基于GPC的自适应算法稳态性能优良,能明显改善空燃比瞬态跟随精度,对系统扰动具有更强的鲁棒性。The controlled auto-regressive integrated moving average （CARIMA） model for lean burn single point injection CNG engine was established and the generalized predictive control （GPC） self-adaptive air-fuel ratio controller was designed. The simulation model was built under the Matlab/Simulink environment. With the model, the simulation was carried out. The results show that compared with the PID algorithm, the self-adaptive algorithm based on GPC has better steady performance and better adaptability to the disturbance of system.

关 键 词：广义预测控制 自适应控制 空燃比 天然气发动机 CARIMA模型 仿真 

分 类 号：U469.7[机械工程—车辆工程] TK431[交通运输工程—载运工具运用工程]