Increasing performance demands on combustion engines for reduced fuel consumption and emissions, as well maintenance of satisfactory driveability, require improved processes for control of combustion and exhaust. In addition to structural changes, research suggests these goals can be achieved by higher variability supported by better actuators and sensors. So modern engines incorporate more manipulation variables and sensors and a complex electronic controls. The design of the many control and also diagnostic functions requires model-based methods taking into account mechatronic engineering principles.
This book treats physically-based as well as experimentally-refined engine models for gasoline and diesel engines and uses them to exemplify the design of various advanced control systems. The procedures, from measurements through simulation to calibration on test benches, are systematically described and demonstrated. The treatment spans not only the stationary but also the dynamic behavior of engines. Several new control regimens are detailed, such as multivariable feedforward and feedback control based on nonlinear net models, combustion pressure and HCCI control. Many new results with signal and process model-based fault diagnosis are used to show how on-board fault diagnosis can be considerably improved.
The book is directed at advanced students working in control, electrical, mechanical and mechatronic engineering and will also be useful for practicing engineers in the field of engine and automotive engineering.
The increasing demands for internal combustion engines with regard to fuel consumption, emissions and driveability lead to more actuators, sensors and complex control functions. A systematic implementation of the electronic control systems requires mathematical models from basic design through simulation to calibration.
The book treats physically-based as well as models based experimentally on test benches for gasoline (spark ignition) and diesel (compression ignition) engines and uses them for the design of the different control functions. The main topics are:
- Development steps for engine control
- Stationary and dynamic experimental modeling
- Physical models of intake, combustion, mechanical system, turbocharger, exhaust, cooling, lubrication, drive train
- Engine control structures, hardware, software, actuators, sensors, fuel supply, injection system, camshaft
- Engine control methods, static and dynamic feedforward and feedback control, calibration and optimization, HiL, RCP, control software development
- Control of gasoline engines, control of air/fuel, ignition, knock, idle, coolant, adaptive control functions
- Control of diesel engines, combustion models, air flow and exhaust recirculation control, combustion-pressure-based control (HCCI), optimization of feedforward and feedback control, smoke limitation and emission control
This book is an introduction to electronic engine management with many practical examples, measurements and research results. It is aimed at advanced students of electrical, mechanical, mechatronic and control engineering and at practicing engineers in the field of combustion engine and automotive engineering.
