Generate Mapped SI Engine from a Spreadsheet

This example uses:

If you have Model-Based Calibration Toolbox™ and Stateflow^®, you can use the engine dynamometer reference application to generate lookup tables for the Mapped SI Engine block. The reference application uses engine data to calibrate the engine and generate the tables.

If it is not opened, open the reference application.
```
autoblkSIDynamometerStart 
```
Click Generate Mapped Engine from Spreadsheet.

Use the Spreadsheet file field to provide a data file. By default, the reference application has SiEngineData.xlsx containing required and optional data. The tables summarize the data file requirements for generating calibrated tables that are functions of either injected fuel mass or engine torque and engine speed.

Firing data contains data collected at different engine torques and speeds.

Firing Data	Description	Data Requirements for Generating Mapped Engine Tables
FuelMassCmd	Injected fuel mass, in mg per injection	Not Used
Torque	Engine torque command, in N·m	Required
EngSpd	Engine speed, in rpm	Required
AirMassFlwRate	Air mass flow, in kg/s	Optional
FuelMassFlwRate	Fuel mass flow, in kg/s	Optional
ExhTemp	Exhaust temperature, in K	Optional
BSFC	Engine brake-specific fuel consumption (BSFC), in g/kWh	Optional
HCMassFlwRate	Hydrocarbon emission mass flow, in kg/s	Optional
COMassFlwRate	Carbon monoxide emission mass flow, in kg/s	Optional
NOxMassFlwRate	Nitric oxide and nitrogen dioxide emissions mass flow, in kg/s	Optional
CO2MassFlwRate	Carbon dioxide emission mass flow, in kg/s	Optional
PMMassFlwRate	Particulate matter emission mass flow, in kg/s	Optional

Nonfiring data contains data collected at different engine speeds without fuel consumption.

Nonfiring Data	Description	Data Requirements for Generating Mapped Engine Tables
FuelMassCmd	Injected fuel mass, in mg per injection	Not used
Torque	Engine torque command, in N·m	Required
EngSpd	Engine speed, in rpm	Required
AirMassFlwRate	Air mass flow, in kg/s	Optional

Click Generate mapped engine calibration to generate response surface models in the Model-Based Calibration Toolbox and calibration in CAGE (CAlibration GEneration). CAGE and the model browser open when the process completes. To calibrate the data, Model-Based Calibration Toolbox uses templates. If you select Open Calibration Tool:
- The Model Browser provides the response model fits for the data contained in the data file, for example:
- The CAGE Browser provides the calibrated data, for example:
When the dynamometer engine mapping completes, use the Simulation Data Inspector to verify the results.

Generate Mapped SI Engine from a Spreadsheet

See Also

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