缸内直喷汽油机共轨压力滑模控制器设计  

Sliding Mode Control of Common Rail Pressure for Gasoline Direct Injection Engines

作　　者：杨荣彬[1,2] 王会[2] 胡云峰[1,2] 刘奇芳[2] 陈虹[1,2] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130025 [2]吉林大学控制科学与工程系,长春130025

出　　处：《控制工程》2016年第11期1768-1773,共6页Control Engineering of China

基　　金：国家自然科学基金(61520106008;61374046)

摘　　要：针对GDI发动机共轨系统的轨压控制要求,设计了基于模型的轨压控制器。首先推导了GDI发动机燃油喷射系统的非线性模型,并对模型进行了合理简化以便进行控制器设计。为了有效处理系统的非线性特性,采用滑模控制方法设计了具有Lyapunov稳定性的轨压控制器,同时对控制器进行相应处理以便于工程实现。最后,仿真结果验证了控制器的有效性。The rail pressure control in gasoline direct injection （GDI） engines is considered as one of the key issues for precise control of fuel injection. In this paper, the detailed nonlinear model of the fuel injection system for GDI engine is carried out, and suitable model simplification is introduced for the controller design. In order to deal with the model nonlinearity and overcome the un-modeled dynamics, the sliding mode control method is adopted to design the rail pressure controller, and the closed-system is Lyapunov stability. Simulation results are provided to demonstrate the effectiveness of the proposed controller.

关 键 词：缸内直喷汽油机 共轨系统 滑模控制 非线性 轨压控制 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]