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Re: [sumo-user] Fuel consumption model parameters
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I see. This info helps, thank you, Michael!
Hi,
the parameters have always been for milligrams. Before the change in
1.14.0 we just calculated the ml values ourselves by applying an average
density for gasoline / diesel, see
https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA3.h#L106
Best regards,
Michael
Am 11.12.22 um 20:59 schrieb Chen Di:
> Thanks Jakob, that helps!
> A follow-up question is, these parameters are serving for milligram. So
> I was wondering if the parameter values for liters are still public. If
> so, where can I find them?
>
> Thanks,
>
> Jakob Erdmann <namdre.sumo@xxxxxxxxx <mailto:namdre.sumo@xxxxxxxxx>> 于
> 2022年12月11日周日 03:48写道:
>
> The parameters for all models are embedded in the source files:
> https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA.cpp <https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA.cpp>
> https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA3.cpp <https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA3.cpp>
> https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA4.cpp <https://github.com/eclipse/sumo/blob/main/src/utils/emissions/HelpersHBEFA4.cpp>
>
> Am So., 11. Dez. 2022 um 09:04 Uhr schrieb Chen Di
> <dichen981@xxxxxxxxx <mailto:dichen981@xxxxxxxxx>>:
>
> Dear Mr./Mrs.,
>
> I am aware that vehicle fuel consumption information can be
> retrieved from travi.vehicle.getFuelConsumption. However, I
> would like to know the specific fuel consumption model that is
> used and the parameter values of it. I found the model from this
> paper (https://elib.dlr.de/89398/1/2ndGenEmissions.pdf
> <https://elib.dlr.de/89398/1/2ndGenEmissions.pdf>, equation
> 1-1). However, I did not find values of parameters c0-c5). Could
> you give any clue on this?
>
> Thanks in advance!
>
> Best,
> Cindy
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