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Gasoline Engine Management

MOT/CME-E
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Who should attend?

  • This course provides a deeper knowledge on spark ignition engines: the different functions related to air supply, fuel supply and combustion; the sensors and the actuators related to each of these functions and how to use them.
Audience :
  • Engineers and technical staff from design and testing departments wishing to know the main components and functions of the SI engine management.

Level : Advanced

Course Content

  • Engine management system architecture & torque structure

      • Logic controller, hardware and Software structures, application engine control architecture.
      • Interpretation of the driver's intentions.
      • Transients and drivability.
      • Torque supervision, intersystem management.
      • Estimation of FMEP losses (frictions), IMEP LP (pumping): example of data analysis dyno test bench.
      • Basic knowledge on idle speed monitoring.

  • Air supply function

      • Standard air circuit:
      • Sensors and actuators: air flow meter, pressure sensor, motor throttle and its control.
      • Air supply chain, torque model (or inverted model): combustion equation, Barre de Saint-Venant equation.
      • Air supply chain, direct model: loading equation, transients management.
      • Dispersions control: closed loop by lambda probe, adaptatives.
      • Deriving air circuit:
      • Turbocharger supercharging, variable timing: sensors and actuators, impact on the control structure.
      • Basic knowledge on the operating safety.

  • Fuel injection & ignition functions

      • Components and related strategies for the following sub-systems:
      • Top dead center and camshaft sensors, acquisition circuits of angular position of crankshaft and camshaft.
      • Indirect gasoline injection (MPI) and direct one (GDI), gas injection.
      • Canister.
      • Upstream and downstream oxygen sensors.
      • Ignition: technologies evolutions.
      • Knocking: acquisition circuit of the accelerometer signal.

  • Diagnostic, depollution & ageing of catalyst

      • Regulatory aspects, ageing of catalyst, OSC (Oxygen Storage Capacity).
      • Catalyst diagnostic.
      • Lambda probe diagnostic.
      • Misfire diagnostic.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • have an overview of the gasoline engine control system,
  • have the necessary elements to diagnose some simple failure modes,
  • talk to specialists to understand and make control strategies evolve.

Ways & Means

  • Interactive training with real life examples.