Technical Paper
Model Based Control of Engines
2007-01-17
2007-26-025
The development of control system for an automobile is often the most critical phase along the road to launching a new vehicle. Over the years there has been a significant advancement in the technology for faster and smarter design of ECUs (Engine control Unit). Model based engine control system design is a stage-by-stage structured process for design and optimization of control functions for various automotive control applications This paper discusses various examples of engine and controller models and there software-in-loop simulation results for application like air-fuel ratio control, idle speed control and knock control. The objective here is to develop a Model Based Control (MBC) for a Port Fuel Injection (PFI) engine. The engine and controller model has been developed using Matlab and Simulink 7.0. Mean Value Engine Model (MVEM) for air-fuel ratio control and idle speed control, and cyclic engine model for knock control are discussed.