Smart in-cylinder pressure sensor for closed-loop combustion control

Abstract ∘ C into the desired electrical values. Furthermore, the embedded smart electronics provides a fast analogue to digital conversion and subsequently computes significant combustion parameters in real time, based on implemented thermodynamic equations, namely the 50 % mass fraction burned, the indicated mean effective pressure, the maximum pressure and a digital value, which represents the intensity of knocking. Only these aggregated parameters – not the running pressure values – are sent to the engine control unit. The data communication between the smart sensor and the engine control unit is based on the controller area network bus system, which is widely spread in the automotive industry and allows a robust data transfer minimizing electrical interferences. The established closed-loop combustion control is able to control the ignition angle in accordance with the 50 % mass fraction burned at a certain crankshaft angle. With this loop, the combustion engine is controlled and run efficiently even if the ignition angle is intentionally incorrectly adjusted. The controlled and automatic correction of simulated ageing effects is demonstrated as well as the self-adjustment of an efficient operation when different fuels are used. In addition, our approach saves the computing capacity of the engine control unit by outsourcing the data processing to the sensor system.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Smart in-cylinder pressure sensor for closed-loop combustion control ; volume:11 ; number:1 ; year:2022 ; pages:1-13 ; extent:13 ; Journal of sensors and sensor systems ; 11, Heft 1 (2022), 1-13 (gesamt 13)

Contributors, Places and Time

• Creator: Vollberg, Dennis ; Gibson, Peter ; Schultes, Günter ; Groh, Hans-Werner ; Heinze, Thomas

Further information

• DOI: 10.5194/jsss-11-1-2022
• URN: urn:nbn:de:101:1-2022010604153590890596
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:23 AM CEST