Application of automotive safety design methodologies to the development of Euro 7 emission control systems including on board monitoring.

Kmieć, Mateusz; Weber, M.; Romijn, Marcel; Matews, Dave

doi:10.19206/ce-141291

Cited by 5 publications

(5 citation statements)

References 9 publications

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“…The engine with a displacement of 1600 cm 3 has gasoline injection into the intake manifold and generates 115 HP [47]. Vehicles produced in 2017 meet the Euro 6 emission standards [48,49]. After a year of running on petrol, the vehicle was converted to run on LPG.…”

Section: Research Objectmentioning

confidence: 99%

The Concept of Determining Route Signatures in Urban and Extra-Urban Driving Conditions Using Artificial Intelligence Methods

et al. 2023

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The article describes the implementation of road driving tests with a vehicle in urban and extra-urban traffic conditions. Descriptions of the hardware and software needed for archiving the data obtained from the vehicle’s on-board diagnostic connector are presented. Then, the routes are analyzed using artificial intelligence methods. In this article, the reference of the route was defined as the trajectory of the driving process, represented by the engine rotational speed, the driving speed, and acceleration in the state space. The state space was separated into classes based on the results of the cluster analysis. In the experiment, five classes were clustered. The K-Means clustering algorithm was employed to determine the clusters in the variant without prior labelling of the classes using the teaching method and without participation of a teacher. In this way, the trajectories of the driving process in the five-state state space were determined. The article compares the signatures of routes created in urban and extra-urban driving conditions. Significant differences between the obtained results were indicated. Interesting methods of displaying the saved data are presented and the potential practical applications of the proposed method are indicated.

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Section: Research Objectmentioning

confidence: 99%

The Concept of Determining Route Signatures in Urban and Extra-Urban Driving Conditions Using Artificial Intelligence Methods

et al. 2023

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“…This requires not only innovative exhaust aftertreatment systems (EATS), 13 but also advanced control and monitoring concepts. 14…”

Section: Introductionmentioning

confidence: 99%

“…This requires not only innovative exhaust aftertreatment systems (EATS), 13 but also advanced control and monitoring concepts. 14 The conventional control approach for the fuel injection system of diesel engines is open-loop, with modern common rail engines using closed-loop control of the rail pressure. Despite a well-calibrated engine control software, engine behavior can still vary due to varying boundary conditions such as engine temperature, individual cylinder-to-cylinder tolerances, hardware drifts or fuel quality variations, etc.…”

Section: Introductionmentioning

confidence: 99%

Advanced model-based closed-loop combustion control strategies with combustion rate shaping

Srivastava

Schaub

Pischinger

2023

International Journal of Engine Research

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Combustion rate shaping (CRS) is an advanced closed-loop concept which controls the crank-angle resolved combustion trace by adapting the fuel injection profile. The thermodynamic potential of this concept to enable real-time combustion control independent of fuel property variations, injector drift, cylinder tolerances, or changing air-path boundary conditions has already been demonstrated. The highest benefit of this control concept is achieved when it is directly applied on the engine control unit (ECU) in combination with an in-cylinder pressure measurement. This enables online optimization and adaption of the fuel- and air-path settings to the fuel used during vehicle operation. Therefore, the development of a CRS concept with real-time capability has been the main focus so far. To ensure a robust online real-time combustion control, a key development step was the identification of control variables that describe the entire combustion process and only minimally influence each other. For this purpose, the combustion phasing, the combustion gradient and the indicated mean effective pressure have been determined as parameters for the feedback control. However, the stringent requirements for higher efficiencies, emission robustness and combustion noise necessitate the extension of the CRS control concept. Therefore, in this work, the CRS control concept is extended with the aim of realizing a combustion with constant volume pressure increase to the peak firing pressure limit to achieve highest efficiency. In addition, intelligent control of the fuel injection profile is to be used to achieve a combustion temperature for lowest possible NOx raw emissions and a robust combustion noise excitation limitation. The optimized control strategy is implemented on a heavy-duty single cylinder engine test bench using a Rapid Control Prototyping (RCP) system, and the control performance is demonstrated.

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“…1 This would not only require advanced powertrain concepts such as powertrain electrification, hydrogen powered vehicles (fuel cells and hydrogen internal combustion engines), synthetic fuel combustion engine operation, 5 but also sophisticated control and on-board monitoring concepts to ensure optimal control response and emission robustness. 6 This has driven the application of advanced closedloop control strategies and on-board monitoring concepts on powertrain control. In engine control applications, a feedback controller is often combined with a non-linear feedforward control path.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adaptive control concepts using radial basis functions and a Kalman filter for embedded control applications

Srivastava,

Sharma,

Schaub

et al. 2023

International Journal of Engine Research

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Look-up tables or semi-physical models are used in engine control application to enhance the transient control performance. However, the calibration of these look-up tables and/or semi-physical models is highly data dependent, requires significant calibration effort, and does not account for effects such as hardware aging, drifts, fuel variations, etc. To address these challenges, this paper presents a generic adaptive control concept for real-time engine control applications. The boundary conditions for the operation on a state-of-the-art engine control unit (ECU) are considered and Radial Basis Function (RBF)-based neural networks are identified for the approximation of non-linear models. To ensure optimal convergence and un-susceptibility to signal noise, a Kalman filter (KF) is exploited for training the RBF network and a modified approximation is derived in this work. The derived KF approximation shows ∼30% better training performance in comparison to the approximation without variable noise consideration. The developed control concept is validated on an engine test bench and a demonstrator vehicle using a Rapid Control Prototyping (RCP) system. The potential of the developed control concept to ensure optimal control response and robustness has been demonstrated.

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Application of automotive safety design methodologies to the development of Euro 7 emission control systems including on board monitoring.

Cited by 5 publications

References 9 publications

The Concept of Determining Route Signatures in Urban and Extra-Urban Driving Conditions Using Artificial Intelligence Methods

The Concept of Determining Route Signatures in Urban and Extra-Urban Driving Conditions Using Artificial Intelligence Methods

Advanced model-based closed-loop combustion control strategies with combustion rate shaping

Adaptive control concepts using radial basis functions and a Kalman filter for embedded control applications

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