Abstract The number of model-based approaches in modern engine control units (ECUs) increases permanently with the increase of engine complexity. Therefore the efficient storage and the fast computation of these model...
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Abstract The number of model-based approaches in modern engine control units (ECUs) increases permanently with the increase of engine complexity. Therefore the efficient storage and the fast computation of these models is a challenging task. Due to their fast computation properties most ECUs utilize 2-dimensional grid map structures. Higher dimensional relations need then to be mapped with nested structures of several 2-dimensional grid maps. The determination of suited structures is a time-consuming task and the number of utilized 2-dimensional grid maps may be large for higher dimensional relations. Therefore in the following a grid map structure, a LOLIMOT structure, a Kernel method and an adaptive polynomial approach are compared with respect to model accuracy, computation time and required memory. Conclusions about the implementation on state of the art ECUs are given. As model output the NO x emissions of a DTH Z19 Opel CR-Diesel engine with VGT-turbocharger and exhaust gas recirculation are regarded. Model structures are presented for a global model approach comprising the engine operation point as input, and for a global-local approach predicting the output by weighting local models.
As a kind of large metallurgy equipment, liquid iron tank was used more widely. This paper took 130t liquid iron tank as an example. Three dimensions solid model of liquid iron tank lifting lug was constructed by ANSY...
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Multi-layer integrated neural networks evaluation model of synthesis quality of the products is founded based on the information fusion theory. Quality of the products are synthetically evaluated using this model, mor...
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Hydraulic support is a key equipment of synthesis mechanization caving coal. Now, lots of countries in the world are increasing investment on hydraulic support design, manufacture and research. This paper took ZT6500/...
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Because coal and gas outburst prediction are very complex. In recent years, using least square support vector machine (LS-SVM) time series forecasting model to predict mine working gas is proposed. However in the sear...
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A multi-channel template extraction method is proposed for automatic EEG spike detection. The template is extracted automatically without any prior knowledge. The template extraction algorithm consists of three steps....
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This paper is concerned with the collaborative fault tolerant controller design problem for m non-Gaussian collaborative stochastic distribution systems which connect in series. The main idea for this paper is that wh...
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Geometric fault detection and isolation filters are known for having excellent fault isolation properties. However, they are generally assumed to be sensitive to model uncertainty and noise. This paper proposes a robu...
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When big frame intersection line welded structural assemblies are produced and assembled, certain errors always come to being, so generally speaking, both instructional and fitting methods are applied to the seam trac...
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The decentralized stabilization problem for a class of uncertain large-scale interconnected systems with discrete and distributed time-delays is investigated. Based on Lyapunov stability theory, a novel Lyapunov-Kraso...
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