Simulink - Powertrain Engine Fuel in mg/injg --> kg/s

Question

Marco Minini 2018-3-1

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回答： Nikhil 2023-6-13

In the CI or SI engine model from the powertrain blockset, in the FUEL section, there is the map in kg/s but from the engine block the fuel rate is received as mg/inj. Is it possible to use data as kg/s instead of mg/inj considering that the maps of fuel configurations are requested in kg/s, or is mandatory to convert my data from kg/s into mg/inj??

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Answer 1

Nikhil 2023-6-13

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https://ww2.mathworks.cn/matlabcentral/answers/385798-simulink-powertrain-engine-fuel-in-mg-injg-kg-s#answer_1254549

It is my understanding that you are confused about whether to input the fuel mass flow rate in kg/s or mg/inj. You should import the data fuel mass flow rate as mentioned in the units field in the Calibrate Maps dialog box.

Refer to this article for more information: SI Engine Model

Also, you could check out the example data file provided by MATLAB at <matlabroot>/toolbox/mbc/mbctraining/SiEngineData.xlsx.