发动机快速启/停控制系统模式切换分析  

Study on Mode-switching for Rapid Stop-start Control System of Engine

作　　者：黄大星[1] 

机构地区：[1]韶关学院汽车系

出　　处：《汽车工程师》2014年第5期31-35,共5页Automotive Engineer

基　　金：韶关市科技计划项目[韶财教(2012)105号];韶关学院国家级大学生创新创业训练项目(201310576-005);江苏省汽车工程重点实验室开放基金(QC200804)

摘　　要：为了提高城市汽车燃油经济性,利用发动机快速启/停系统对发动机进行启停控制,系统控制器判断汽车运行状态来自动关闭发动机,以切断燃油供给系统来节省燃油。介绍了装有发动机启/停系统的皮带驱动启动/发电集成电机(BSG)汽车传动系统结构,对BSG汽车的4种工作模式进行了分析。应用切换控制理论对发动机快速启/停系统模式切换过程进行了描述,利用逻辑方法制定了模式切换规则。利用硬件在环仿真试验系统,在中国城市循环工况下,对系统切换模式性能进行仿真试验。试验结果表明:设计的模式切换控制性能能够满足BSG汽车的要求,并具有良好的操作平顺性。Rapid stop-start control system can control engine start and stop to improve the fuel economy of city-run vehicle. The controllers in stop-start control system can judge vehicle running status, and the engine shuts off automatically, so as to cut off oil supply to improve vehicle fuel economy. This paper introduces the structure of stop-start system＇s BSG（Belt-driven Starter Generator）, 4 kinds of operation modes for BSG are illustrated in the paper. Mode-switching of rapid stop-start system is described using switching control theory in the paper, at the same time using the logic method to formulate the mode-switching rules is also introduced in the paper. The performance of mode-switching can be simulated under China urban cycle condition. The modeswitching control performance can meet the requirements of BSG vehicle, and has better ride comfort.

关 键 词：汽车工程 发动机启/停系统 模式切换 仿真分析 

分 类 号：U461[机械工程—车辆工程]