Enhancement of Heavy-Duty Engines Performance and Reliability Using Cylinder Pressure Information

Sustainability issues are becoming increasingly prominent in applications requiring the use of heavy-duty engines. Therefore, it is important to cut emissions and costs such engines reduce carbon footprint keep operating expenses under control. Even if for some a battery electric equipment introduced, diesel-equipped machinery still popular thanks longer range. In this field, open pit mines good example. fact, Total Cost Ownership (TCO) mining highly impacted by fuel consumption (engine efficiency) reliability (service interval engine life). The present work focused on efficiency enhancements achievable through application combustion control strategy based in-cylinder pressure information. benefits mainly due two factors. First, negative effects injectors aging can be compensated. Second, cylindrical online calibration parameters enables system optimization. article divided into parts. first part describes toolchain that designed real-time system, while second concerns algorithm would implemented Engine Control Unit (ECU) leverage assessment potential feasibility carried out Software Loop (SiL) environment, simulating both developed behavior (Liebherr D98). Our goal validate SiL simulations. results validation process demonstrate effectiveness strategy: firstly, cylinder disparity IMEP (+/−2.5% reference conditions) virtually canceled. Secondly, MFB50 individually optimized, equalizing Pmax among cylinders (+/−4% standard calibration) without exceeding threshold. addition this, BSFC reduced 1% accurate cylinder-by-cylinder calibration. Finally, or variations implicitly compensated, keeping optimal performance thorough life.