Calibration Systems with MATLAB by Examples by Parker K.

By Parker K.

Model-Based Calibration Toolbox presents layout instruments for optimally calibrating complicated powertrain platforms utilizing statistical modeling and numeric optimization. you could outline attempt plans, advance statistical types, and generate calibrations and search for tables for complicated high-degree-of-freedom engines that may require exhaustive trying out utilizing conventional equipment. by utilizing the toolbox with MATLAB and Simulink you could boost a strategy for systematically picking out the optimum stability of engine functionality, missions, and gasoline economic system, and reuse statistical types for keep watch over layout, hardware-in-the-loop trying out, or powertrain simulation.

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You cover the following steps: 1 Load models of engine responses, decide on optimization strategy and define additional models. See “Importing Models into CAGE” on page 2-67. 2 Set up tables. See “Setting Up Calibration Tables to Fill” on page 2-70. 3 Define optimization objective and constraints. See “Setting Up the Optimization” on page 2-73. 4 Set up an operating point set for the optimization. See “Defining Variable Values” on page 2-76. 5 Run the optimization and view the results. See “Running the Optimization” on page 2-78 Duplicate and modify the optimization to create a sum optimization using the previous results as starting points.

1 for the minimum, 1 for the maximum, and press Enter. Edit set points of variables as follows. 1 Click to select the variable ECP and edit the Set Point to 5. 2 Click to select the variable ICP and edit the Set Point to 40. 1 2 3 Setting Up Tables You can use the Create Tables From Model wizard helps you quickly create a set of tables with the same axes for all the inputs of a model, and the model response, and any other responses that share the same inputs. This wizard can be useful when creating tables for an optimization, to use when filling tables with optimization results, and for investigating results in the tradeoff views.

The models exported depend on the model node you have selected in the tree. To export all models in the test plan, select the test plan node. Note For this example, you use CAGE to import the models. You use the example models in the CAGE part of the Model-Based Calibration Toolbox product to produce optimized calibration tables. Proceed to the next section for instructions. Optimized Calibration In this section... “Problem Definition” on page 2-64 “Benefits of Automated Calibration” on page 2-65 Problem Definition This section describes the creation and optimization of calibration tables for thegasolinecasestudy.

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