Abstract
In this paper, a linear fractional transformation (LFT) approach is proposed in order to design a linear parameter-varying discrete-time controller including an anti-windup compensation. The provided methodology is applied to the control of diesel engine common rail injection systems. Simulation results on a non linear model are then shown and discussed. The control method is brie?y compared with the on-board gain-scheduled PID controller.
Highlights
In the heart of sustainable development, engine control is a major field of automotive control systems and concerns many subsystems
Common rail systems have been developed to reduce noise, exhaust emissions and fuel consumption and, at the same time to increase performances. Such functionalities must be achieved, taking into account the system variations according to engine speed, fuel temperature, etc., and for all cars equipped with the common rail injection system
A discrete-time H∞ LPV anti-windup controller has been developed in the linear fractional transformation (LFT) framework
Summary
In the heart of sustainable development, engine control is a major field of automotive control systems and concerns many subsystems (idle, turbo, injection...). Common rail systems have been developed to reduce noise, exhaust emissions and fuel consumption and, at the same time to increase performances. Only the part of this model dedicated to the rail behavior is briefly recalled in order to show the need for a Linear Parameter Varying model of the plant. The remaining subsystems, such as the IMV actuator or the HP pump, are modelled using physical equations (electrical, hydraulic and mechanical) and linearized in a generic way to lead to LPV models
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