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HandWiki. Engine Control Unit. Encyclopedia. Available online: https://encyclopedia.pub/entry/29188 (accessed on 10 September 2026).
HandWiki. Engine Control Unit. Encyclopedia. Available at: https://encyclopedia.pub/entry/29188. Accessed September 10, 2026.
HandWiki. "Engine Control Unit" Encyclopedia, https://encyclopedia.pub/entry/29188 (accessed September 10, 2026).
HandWiki. (2022, October 14). Engine Control Unit. In Encyclopedia. https://encyclopedia.pub/entry/29188
HandWiki. "Engine Control Unit." Encyclopedia. Web. 14 October, 2022.
Engine Control Unit
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The content is sourced from: https://handwiki.org/wiki/Engine_control_unit

An engine control unit (ECU), also commonly called an engine control module (ECM) is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance. It does this by reading values from a multitude of sensors within the engine bay, interpreting the data using multidimensional performance maps (called lookup tables), and adjusting the engine actuators. Before ECUs, air–fuel mixture, ignition timing, and idle speed were mechanically set and dynamically controlled by mechanical and pneumatic means. If the ECU has control over the fuel lines, then it is referred to as an electronic engine management system (EEMS). The fuel injection system has the major role of controlling the engine's fuel supply. The whole mechanism of the EEMS is controlled by a stack of sensors and actuators.

electronic control unit engine control module engine control unit

References

  1. Austen, Ian (2003-08-21). "WHAT'S NEXT; A Chip-Based Challenge to a Car's Spinning Camshaft". The New York Times. https://query.nytimes.com/gst/fullpage.html?res=9503E1DB1F30F932A1575BC0A9659C8B63&sec=&spon=&pagewanted=1. 
  2. Kassakian, J.G.; Wolf, H.-C.; Miller, J.M.; Hurton, C.J. (1996). "Automotive electrical systems circa 2005". IEEE Spectrum 33 (8): 22. doi:10.1109/6.511737.  https://dx.doi.org/10.1109%2F6.511737
  3. Gunston, Bill (1989). World Encyclopedia of Aero Engines. Cambridge, England: Patrick Stephens Limited. p. 26. ISBN 978-1-85260-163-8. 
  4. "Trends in the Semiconductor Industry: 1970s". http://www.shmj.or.jp/english/trends/trd70s.html. 
  5. "1973: 12-bit engine-control microprocessor (Toshiba)". http://www.shmj.or.jp/english/pdf/ic/exhibi739E.pdf. 
  6. GM Emission Control Project Center - I Was There - GMnext http://history.gmheritagecenter.com/wiki/index.php/GM_Emission_Control_Project_Center_-_I_Was_There
  7. Delco Electronics Electron Magazine, The Atwood Legacy, Spring '89, page 25
  8. Pilot's Encyclopedia of Aeronautical Knowledge. Federal Aviation Administration. 
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