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Gasoline Engine Management

Gasoline Engine Management

3 days
This course is not scheduled.
Who should attend?


    • Engineers and technical staff from design and testing departments wishing to know the main components and functions of the SI engine management.


  • Advanced
  • 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.
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.
Course Content

Engine management system architecture & torque structure

0.5 day

  • 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

1 day

  • 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

1 day

  • 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

0.5 day

  • Regulatory aspects, ageing of catalyst, OSC (Oxygen Storage Capacity).
  • Catalyst diagnostic.
  • Lambda probe diagnostic.
  • Misfire diagnostic.
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Ways & Means
  • Interactive training with real life examples.