基于功率跟踪式约束的发动机开关控制方法（英文）

Control method of engine switch based on power tracing constraint

针对传统控制方法控制精度低,且在一定程度上容易出现开关实际功率超过发动机可提供功率的情况,提出一种新的基于功率跟踪式约束的发动机开关控制方法。确定发动机开关控制过程中的最大功率。为了便于后续发动机开关控制的分析,介绍了开关支路的功率表达式。构建某支路在其它支路断开情况下的功率跟踪式约束。将功率跟踪式约束转化为适于发动机开关控制的形式。在功率跟踪式约束的条件下,将发动机滚转通道看作一个双积分环节。对发动机启动时间与运行时间进行调整,使其和开关力矩达到一致效果,实现开关控制。在控制量低于设定值的情况下,给出开关控制改进过程。实验结果表明:所提方法控制精度高\收敛性佳,能满足发动机对开关的要求。

Traditional control methods has low control precision,and it is easy to cause that the actual power of the switch exceeds the power provided by the engine to some extent,this paper proposed a new method of engine switch control based on power tracking constraint.The maximum power in the process of engine switch control was determined.In order to facilitate the analysis of the following engine switch control,the power expression of switch branch was introduced.The power tracing constraint of a branch was built when other branches were disconnected.The power tracking constraint was transformed into the form which was suitable for engine switch control.Under the condition of power tracing constraint,the roll-channel of engine was considered as a double integral link.The engine starting time and running time were adjusted so as to achieve the same effect as the switch torque,and the switch control was realized.The improvement process of switch control was given under the condition that the controlled quantity was less than the setting value.Experimental result shows that the proposed method has high precision and good convergence,which can meet the requirements of engine for the switch.