Comparison Between Calculated Speed-Based and Sensor-Fused Speed-Based Engine In-Cylinder Pressure Estimation Method

Han, Runzhe; Bøhn, Christian; Bauer, Georg

doi:10.1016/j.ifacol.2022.04.037

Cited by 3 publications

(1 citation statement)

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“…A family of approaches called pseudo-inversion, which can be conducted without preview, has been proposed [19,20]. However, such approaches will encounter other problems such as the difficulty of choosing a suitable basis function; Direct system identification-based inversion approaches the input-output data from the system to be inverted to identify the inverse system directly, however, the system identification cannot be conducted when the system to be inverted not stable [3]; For signal modeling-based inversion approaches, the input signal, which is to be reconstructed, must be a periodic signal under stationary operating conditions [21,22].…”

Section: Of 19mentioning

confidence: 99%

INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

Han,

Bauer,

Bohn

2024

Preprint

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The inverse system identification toolbox named INVSID 1.0 for MATLAB, which is used to identify the inversion of single-input single-output systems, is developed. The complete process of developing the toolbox is demonstrated. Afterwards, a numerical example is illustrated to describe how the toolbox can be used to solve inverse identification problems. Simulation results demonstrate the effectiveness of the toolbox.

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Section: Of 19mentioning

confidence: 99%

INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

Han,

Bauer,

Bohn

2024

Preprint

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INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

Han,

Bohn,

Bauer

2024

Applied Sciences

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The inverse system identification toolbox named INVSID 1.0 for MATLAB, which is used to identify the inversion of single-input single-output systems, is developed. The complete process from theoretical derivation to toolbox creation of developing the toolbox is demonstrated. Afterwards, numerical examples are illustrated to describe how the toolbox can be used to solve inverse identification problems. Simulation results demonstrate the effectiveness of the toolbox.

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Recursive Engine In-Cylinder Pressure Reconstruction Using Sensor-Fused Engine Speed

Han,

Bohn,

Bauer

2024

Sensors

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The engine in-cylinder pressure is a very important parameter for the optimization of internal combustion engines. This paper proposes an alternative recursive Kalman filter-based engine cylinder pressure reconstruction approach using sensor-fused engine speed. In the proposed approach, the fused engine speed is first obtained using the centralized sensor fusion technique, which synthesizes the information from the engine vibration sensor and engine flywheel angular speed sensor. Afterwards, with the fused speed, the engine cylinder pressure signal can be reconstructed by inverse filtering of the engine structural vibration signal. The cylinder pressure reconstruction results of the proposed approach are validated by two combustion indicators, which are pressure peak Pmax and peak location Ploc. Meanwhile, the reconstruction results are compared with the results obtained by the cylinder pressure reconstruction approach using the calculated engine speed. The results of sensor fusion can indicate that the fused speed is smoother when the vibration signal is trusted more. Furthermore, the cylinder pressure reconstruction results can display the relationship between the sensor-fused speed and the cylinder pressure reconstruction accuracy, and with more belief in the vibration signal, the reconstructed results will become better.

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Comparison Between Calculated Speed-Based and Sensor-Fused Speed-Based Engine In-Cylinder Pressure Estimation Method

Cited by 3 publications

References 10 publications

INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

INVSID 1.0: An Inverse System Identification Toolbox for MATLAB

Recursive Engine In-Cylinder Pressure Reconstruction Using Sensor-Fused Engine Speed

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