Hi Colin, Thanks for you interesing in SUMO :-). About your first question, the *internalMomentOfInertia* can be understand as the composition of the rotation of all vehicle's elements
About the drag coefficient, check this: https://en.wikipedia.org/wiki/Automobile_drag_coefficient in the section "Typical drag coefficients" you have a list of drag coefficients that can you use in your model. Check the references of this paper to obtain more information about all parameters of energy model: http://link.springer.com/chapter/10.1007/978-3-662-45079-6_3#page-1 Regards —————————————————————————— *Deutsches Zentrum für Luft- und Raumfahrt* e.V. (DLR) Institut für Verkehrssystemtechnik | Lilienthalplatz 7 | 38108 Braunschweig *Pablo Álvarez López* Telefon +49 531 295-3457 | *[email protected] <[email protected]>* www.DLR.de <http://www.dlr.de/> | Institut für Verkehrssystemtechnik <http://www.dlr.de/ts> 2016-08-05 16:47 GMT+02:00 Colin Stewart <[email protected]>: > Hi there - new user to SUMO and all :) > > I have been reviewing the implementation of the electric vehicle model as > detailed http://sumo.dlr.de/wiki/Models/Electric, and I'm slightly > confused > as to the definitions of a couple of the parameters as listed. > > Jint 'internalMomentOfInertia' & Crad 'radialDragCoefficient'. > > I have some reading on inertia components, but I am trying to understand if > this 'internal' rotating elements includes all rotating vehicle elements > (i.e. shafts, motor and all vehicle tyres)? If this is the case then I'd > say figures for 12m length transit buses are in the region 30-50kg/ m2 if > that seems correct to others? > > I have never come across Crad: radialDragCoefficient before & am struggling > to understand exactly what this represents. Any further description/ > definition? Is this the aerodynamic drag of the rotating wheels (as being > different to rolling resistance coefficient & vehicle air drag coefficient) > or something else? I was reading one of the SUMO references and it is > briefly described along the lines of centripetal force Fra & curve > resistance coefficient Crad...I really am missing something. > > > Many thanks for your time & any clarification that can be provided. > > > Kindest regards, > Colin > ------------------------------------------------------------ > ------------------ > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user > ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://sdm.link/zohodev2dev _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
