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Introduction to Engine Management: Practical Approach by Modeling & Simulation

9 days MOT/CMCS-E
Level
Advanced
Audience
  • Engineers and technical staff from design and testing departments wishing to discover the engine management in a practical way and desiring a comprehensive and practical understanding of engine control.
Purpose
  • To inform participants about the strategies used to manage the engine operation in order to improve performances. This training requires a basic knowledge related to the components of engine control such as the knowledge offered in Spark Ignition Engines and Diesel Engines.
Learning Objectives
  • To be able to determine and to carry out SI and Diesel engines set torque, by air, timing and fuel management.
  • To know depollution and OBD strategies necessary to meet the standards.
  • To understand the relationship between engine physics and control.
  • To know engine control basics.
  • To understand the relationship between EMS design and customer requirements.
  • To understand engine management system process development.
  • To identify the components necessary to control the engine and its requirements as well as to describe their operation.
  • To design and develop engine control strategies.
  • To validate and calibrate engine control strategies.
Prerequisite
  • It is of interest to initially follow MOT/MOT1-E, MOT/MOT2-E and MOT/MOT3-E.
Ways and means
  • This training provides an overview of engine management systems. It is based on concrete examples and a pragmatic approach by modeling and simulation. A control project underlies learning. Students are active throughout the training: they develop, realize, test and validate themselves the control software they have developed.
  • The steps in this active learning are:
  • Design, build and calibration of control strategies in Matlab-Simulink
  • Engine model development for torque structure design with Matlab-Simulink
  • Strategies validation with an engine model (MIL) with Matlab-Simulink.

Engine management introduction and discovery by practice 3.5 days
  • Stakes, definitions, architectures, sensors, actuators, ECU, control strategies.
  • Automatisms: PID regulators (principle, tuning, gasoline idle speed and Diesel EGR control), new tuning methods and prospects.
  • Diesel and gasoline engines physics applied to the management problem, by the following parameters: air, fuel, torque, speed, depollution.
  • Control law “hands design”. All introductory concepts are reworked with the example of a spark ignition engine: design and implementation of a torque structure, design and implementation of an idle speed control strategy.
Spark ignition engine torque and emissions control 1.75 days
  • Interpreting of the driver's intentions and taking external requirements into account.
  • Taking driving pleasure into account, idle speed.
  • How to meet the set torque.
  • Air management: translating the instruction into an air quantity and in throttle driving, airflow measurements with the pressure/velocity strategy, exhaust gas recirculation EGR.
  • Fuel management: fuel supply, starting, evaporative emission system (canister).
  • Managing the injection pressure and the injected quantity, injector driving, injection modes.
  • Timing management: torque variations driving by the ignition/knocking advance (ignition computing sequence).
  • Operation of pollutant strategies to control engine out and after-treatment.
Diesel engine torque and emissions control 1.75 days
  • How to meet the set torque. Diesel torque structure. Torque control by injection control.
  • Air management: translating the torque instruction into an air quantity, supercharching control.
  • Fuel management: fuel supply, starting, managing the injection pressure and the injected quantity, injector driving, injection modes, control of the injection patterns. Injections corrections strategies.
  • Operation of pollutant strategies to control engine out and after-treatment. Pollutants and air diesel chain: controlling the amount of air, amount of fresh air and EGR rate.
  • After-treatment control systems: oxidation catalyst, DPF, SCR and NOx trap.
Engine cross control 2 days
  • Engine synchronization: crankshaft and cam timing. Strategies, operating technologies and components.
  • Powertrain supervision: Interpreting the driver will, choice of the powertrain operating point, intersystem arbitration.
  • OBD: issue of OBD in a Euro 6 context: impact on the architecture of motor control. Globalized approach to diagnosis.
  • Intersystem: functional issues of CAN, VAN, digital links sensors-ECU intersystem networks.