E-COSM 2021 Paper Abstract

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Paper MoBT1.5

Pla, Benjamín (Universitat Politecnica de Valencia), Bares, Pau (Universitat Politecnica de Valencia), Jimenez, Irina Ayelen (Universitat Politecnica de Valencia), Guardiola, Carlos (Universitat Politecnica de Valencia)

Model-Based Residual Gas Fraction and Combustion Phase Control with Variable Valve Timing and Spark Advance

Scheduled for presentation during the Regular session "Engine control system" (MoBT1), Monday, August 23, 2021, 17:50−18:10, Room T1

6th IFAC Conference on Engine and Powertrain Control, Simulation and Modeling, August 23-25, 2021, Tokyo, Japan

This information is tentative and subject to change. Compiled on March 29, 2024

Keywords Engine Control, Combustion Control, Spark Ignition

Abstract

Residual gas fraction and combustion phase are two important variables in spark ignition engines since affect thermal efficiency, emissions and combustion stability. In-cylinder pressure signal contains the most relevant information to be used as feedback for closed-loop spark advance and residual gas fraction control. However, pressure sensors are still affected by challenges such as durability and cost. This work presents a model-based residual gas fraction control with spark advance optimization. The controller is validated in a light-duty spark ignition engine, being able to control the residuals both in steady and transient conditions, showing the potential to replace in-cylinder pressure sensors.

 

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