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Method of simulating engine operation

An engine and operation data technology, applied in general control systems, instruments, control/regulation systems, etc., can solve problems such as inability to simulate cyclic engine events, unsuitable for generating real-time simulation results, etc., to achieve the effect of improving efficiency

Active Publication Date: 2009-12-23
RICARDO SIMULATION LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A problem that remains with existing modeling techniques is the inability to simulate cyclic engine events to produce accurate simulation results in real time
Instead, current approaches focus on increasing the complexity of crankshaft decomposition models, making them less suitable for generating real-time simulation results, and then relying on approximate control-based models in real-time simulation

Method used

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  • Method of simulating engine operation
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  • Method of simulating engine operation

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Embodiment Construction

[0020] In general, the present invention relates to a method of creating a simplified engine model for simulating engine operation. A simplified engine model is created using a modeling tool that uses information from the full engine model. The simplified engine model can then be used to simulate engine operation and produce accurate simulation results in real time. The simplified engine model can be run in different simulations or other operating environments, including software-in-the-loop, hardware-in-the-loop, and in the engine control unit.

[0021] refer to figure 1 , the control interface for a model or model component according to the invention can be seen in more detail. The interface is between the engine model 110, the existing complete vehicle model 112, and a number of different control development and test systems 116, 118, 120, and 122, which include references to the base engine model components or have their connections and A description of the construction...

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Abstract

A method of creating a simplified computer implement for engine model comprises obtaining a complete computer implement for engine model (110) and selecting, from the complete engine model (110), elements defining the simplified engine model (110). The method further comprises obtaining from a library of rules at least one computer implementable model creation rule corresponding to the selected elements and using that at one rule to create the simplified computer implementable engine model (110).

Description

technical field [0001] The present invention relates to a method of simulating the operation of an engine and, in particular, to creating a simplified engine model. Background technique [0002] A variety of modeling methods are known for simulating engine operation. These modeling methods are used, for example, in developing and testing control strategies for engines. In many cases, modeling methods enable fast simulation results due to their simplicity. However, the results obtained are less accurate due to the approximation used. [0003] A more complex known modeling method is crank-resolved modeling. In the crankshaft exploded model, the cylinders of the engine are divided into sections. The propagation effects along the cylinder are then analyzed. In crankshaft decomposition simulations, full differential equations are solved to capture wave-action effects in the engine. This modeling approach is accurate because it looks at engine characteristics and considers i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/00
CPCG05B17/02
Inventor A·J·特拉斯科特R·D·诺里斯S·A·安费里特P·米列尔
Owner RICARDO SIMULATION LTD