A Coordinated Approach for Throttle and Wastegate Control in Turbocharged Spark Ignition Engines
作者单位：Department of Mechanical Engineering University of MichiganAnn Arbor US
会议名称：《第24届中国控制与决策会议》
会议日期：2012年
学科分类：080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理]
关 键 词：Turbocharged Engine Control TISO Control Mid-ranging Control Master-Slave Control
摘 要：This paper presents a control approach for turbocharged spark ignition engines that coordinates the throttle and wastegate air path actuators in order to improve driveability without significant compromise in efficiency. The coordinated controller is based on a two-input single-output （TISO） architecture which can be tuned through classical frequency response techniques using linearizations of a nonlinear mean value engine model. A systematic tuning method for the TISO architecture based on prior work is recommended and explained. The controller is evaluated in simulation with a one-dimensional GT-Power model and its performance is compared to that of a controller that does not coordinate the throttle and wastegate.