Vehicle dynamic simulation question

[suresh]

iam doing project on "modeling of vehicle dynamics for virtual test drive using matlab/simulink".iam develope the longitudal vehicle dynamics in matlab,but i didn't get proper output.how to give the inertia values in inertia block and incline block.iam facing another problem i.e how to write the VRML code for simulation a car in different road conditions.
please help me anybody known this

[nickpearson]

Hi mate,

I'm doing a similar project at the minute, what part of the inertia equation are you having problems with? I guess you have the inertia, rolling resistance and aero load all coupled together?

Try checking the values that you are inputting and their units, if you have velocities going in, check they are m/s and not km/hour or anything daft - easy mistake, i should know http://fsae.com/groupee_common/emoticons/icon_smile.gif

Nick

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