Pressure sensor glow plug for diesel engines

Houben, Hans; Marto, Arno; Pechhold, Frank; Haußner, Michael; Borgers, Marc

doi:10.1007/bf03227710

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…The CCLC technology, available on the chosen engine, enables individual and real-time control of the indicated mean effective pressure (IMEP), cycle-by-cycle and cylinder-by-cylinder by means of piezoresistive pressure sensors integrated in the glow plugs. 10 In particular, on the basis of in-cylinder pressure trace acquisition, the electronic control unit (ECU) calculates the actual value for IMEP and then compares it to the target value derived from the accelerator pedal request. As a consequence, the deviations are continuously resettled by adjusting the main injection quantity for the following combustion cycle.…”

Section: Experimental Apparatus Test Plan and Fuelsmentioning

confidence: 99%

Implementation of the Closed-Loop Combustion Control Methodology in Modern Automotive Diesel Engines for Low-End Torque Increment Burning Biodiesel

2012

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The interaction among biodiesel, engine calibration, and turbocharger system was investigated in a modern automotive diesel engine. In consideration of the poorer maximum torque curve derived from the use of fatty acid methyl ester (FAME) biodiesels, pure or in blends, with respect to the conventional diesel one, an experimental activity was dedicated to the investigation of the capability of the closed-loop combustion control (CLCC) technology to mitigate or improve the impact of FAME characteristics on the engine full torque curve. With respect to the well-known penalty effect of biodiesel on engine performance, the results highlighted the capability of the CLCC technology to reset the torque loss burning biodiesel. Furthermore, the study has provided evidence of the possibility to exploit the very low soot emissions burning FAME fuels, increasing the low-end maximum torque curve with respect to a conventional diesel fuel. The described engine re-optimization could be activated automatically in the engine electronic control unit, once a fuel-blending detection procedure based on the CLCC system (currently in development) has been implemented. In this respect, the study represents a further step toward the future actual full flex-fuel engine.

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Section: Experimental Apparatus Test Plan and Fuelsmentioning

confidence: 99%

Implementation of the Closed-Loop Combustion Control Methodology in Modern Automotive Diesel Engines for Low-End Torque Increment Burning Biodiesel

2012

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“…However, lowcost pressure transducers incorporated into conventional glow plugs have recently become available and are being successfully used in production diesel vehicles. [17][18][19][20][21] Previous research by the authors has shown that closed-loop diesel combustion control strategies using cylinder pressure-based feedback have the potential to enable operation within the narrow operating pathways of these advanced combustion modes for achieving low emissions of NOx and soot while maintaining stable engine operation. 13,22 To stabilize and improve the engine performance during the advanced combustion modes, the combustion phasing needs to be anchored within a narrow crank angle (CA) window close to the top dead center (TDC).…”

Section: Introductionmentioning

confidence: 99%

Diesel pressure departure ratio algorithm for combustion feedback and control

Asad

Zheng

2012

International Journal of Engine Research

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The pursuit for higher efficiency and ultra-low exhaust emissions from diesel engines requires the combustion process to be precisely controlled so as to minimize departures from the intended engine operation. The combustion control system must be able to perform corrective actions on a cycle-by-cycle basis, with a robust feedback on the combustion process. The combustion phasing, commonly represented by the crank angle of 50% heat release and derived from the measured cylinder pressure data, shows a strong correlation to the efficiency and the engine-out nitrogen oxide emissions. To accurately estimate the combustion phasing from the derived heat-release rate, the authors previously introduced and experimentally validated a computationally efficient diesel pressure departure ratio algorithm, against selected cases of boost, engine load and exhaust gas recirculation. In this work, the formulation of the pressure departure ratio algorithm is presented in detail along with its implementation to enable combustion control during both transient and steady-state engine operations. Engine tests demonstrate that the algorithm was effective in stabilizing the combustion process on a cycle-by-cycle basis for a range of engine speeds, load and exhaust gas recirculation, which included conventional and low-temperature diesel combustion modes.

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Control of Gasoline Engines

Isermann

2014

Engine Modeling and Control

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Pressure sensor glow plug for diesel engines

Cited by 6 publications

References 3 publications

Implementation of the Closed-Loop Combustion Control Methodology in Modern Automotive Diesel Engines for Low-End Torque Increment Burning Biodiesel

Implementation of the Closed-Loop Combustion Control Methodology in Modern Automotive Diesel Engines for Low-End Torque Increment Burning Biodiesel

Diesel pressure departure ratio algorithm for combustion feedback and control

Control of Gasoline Engines

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