Hi, you might want to have a look at the brake gap calculation in src/microsim/cfmodels/MSCFModel.h. This is probably different from what IDM usually does, although I would consider this a bug in sumo, I think it was necessary to implement it this way because IDM had severe problems in stopping to the point. I opened a ticket http://sumo.dlr.de/trac.wsgi/ticket/2462
Best regards, Michael Am 24.06.2016 um 15:48 schrieb Avinash Vallur: > > > > Hello Folks, > > I am trying to design a vehicle dynamic model that runs a co-simulation with > SUMO. I have my vehicle model in MATLAB and use TraCI to communicate between > them both. > > To > calculate my brake and throttle commands, my model requires the current > speed (speed_i) and the future speed (speed_i+1). Is there any > function/method that i can use to obtain the required information. For > now i am using a round about method to accomplish the task. > > Currently, > I use the IDM driver model in my SUMO simulation and built another IDM > model in MATLAB that can predict the SUMO driver's behavior. This helps > me run the co-simulation as of now. But Ive noticed that as the vehicle > approaches an intersection / traffic light, the vehicle velocity > deviates from the predicted IDM values. I understand that this is to > accommodate for the eventual stop at the intersection. But is there a > particular equation that SUMO uses to set these speeds? If so I can > incorporate this equation into my IDM model such that my predictor > always predicts the velocity correctly. Else if there exists an explicit > function that would output the future speed ( in the next time step) i > can use that too. > > Thanks in Advance, > Avi > > P.S. > I found some related information on : > http://www.sumo.dlr.de/2013/SUMO2013_15-17May%202013_Berlin-Adlershof.pdf but > i was unable come to a definite conclusion. > > > ------------------------------------------------------------------------------ > Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San > Francisco, CA to explore cutting-edge tech and listen to tech luminaries > present their vision of the future. This family event has something for > everyone, including kids. Get more information and register today. > http://sdm.link/attshape > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user > ------------------------------------------------------------------------------ Attend Shape: An AT&T Tech Expo July 15-16. Meet us at AT&T Park in San Francisco, CA to explore cutting-edge tech and listen to tech luminaries present their vision of the future. This family event has something for everyone, including kids. Get more information and register today. http://sdm.link/attshape _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
