车用柴油机二级增压系统控制策略研究  

Research on Control Strategy of Two-Stage Tubocharging System for Vehicle Diesel Engine

作　　者：杨薇 白思春 李菲菲 姚素娟 姜晓博 YANG Wei;BAI Sichun;LI Feifei;YAO Sujuan;JIANG Xiaobo(China North Engine Research Institute(Tianjin),Tianjin 300400,China)

机构地区：[1]中国北方发动机研究所(天津),天津300400

出　　处：《现代车用动力》2021年第4期24-27,共4页Modern Vehicle Power

摘　　要：针对常规涡轮增压柴油机低转速时转矩不足、瞬态响应迟缓等问题,对二级增压控制策略进行研究和验证。分析二级增压系统的结构,论述了增压器双闭环控制和二级增压器协同控制策略,并提出了控制参数的标定流程。整机试验结果表明,所设计的二级增压控制策略合理,系统能够实现二级增压器的协同控制,满足柴油机不同工况的驾驶性需求。Aiming at the problems of insufficient torque at low speed and slow transient response of conventional turbocharged diesel engine,the two-stage turbocharging control strategy is studied and verified,the structure of the two-stage turbocharging system is analyzed,the double closed-loop control strategy of turbocharger and the cooperative control strategy of two-stage turbocharger are discussed,and the calibration process of control parameters is proposed.The vehicle test results show that the designed double turbocharging control strategy is reasonable,the system can continuously adjust the boost pressure and adapt to the boost pressure requirements of different diesel engine operating conditions.

关 键 词：柴油机 二级增压 双闭环 控制策略 

分 类 号：U464.172[机械工程—车辆工程]