Recent content by crazyone

Thanks Jeff, now i understand your instructions better, the only thing i don't see in there is how to apply current velocity/inertia of the car to acceleration. I was thinking of the previous model the Pacejka, could i simply apply it using a 0.01 velocity value or simply skip it in the formula...

God and i thought i was intelligent :P Thanks guys, i will re-re-re-read the post from jeff about the accelelation calculation and try to apply it to the data i currently have. If it works, then i will use this to implement accelleration. Later guys

Thanks to both of you, ok, so the SI units are not the same as Torque ft-lbs? I'll look up a converter on the net and create a conversion function. Stingray, if the equation you provided doesn't work for 0 speed, then what will? There must be a way to extrapolate the required force needed to...

Another thing I'm wondering, the engine will still be able to rev up but slowly at the first calculation pass creating more power on the second pass and so on. So if i have a strong enough power, i can eventually move right? That would be how a car could eventually defeat hills and wind drag?

Ok if i understand your post stingray, the movement of a car is equivalent to it's mass multiplied by acceleration multiplied by velocity and this must equivalent to the SI units generated by the engine and i'd have to remove the drag from this. Taking into account that i don't have any...

Thanks for the info stingray, the data presented in that page is about the engine itself, i did peak at the car physics at the bottom but this is way to mathematical for me, i need to understand first then i can maybe start playing around with formulas. I'm not a mathematician, just a simple...

I know, that a car has Torque@RPM, that produces torque in a matter of foot-pounds or SI units. I know i have first to calculate how much power the engine can output at the RPM it's reving. What i am not sure is if the RPM of the engine affects the torque at the same time. For example, if a...

I've looked it up, it's not showing much other than presenting the racing engine, i found a part discussing car physics, but so far i know as much as is presented. After reading your post, I've tried to find out what you mean by 52 rev/s, i can't seem to produce this, where do you get that...

thanks, i'll look it up, note that i want to make a racing sim but it's an online one, so I'm not looking at doing an extreme racing sim, just one that is not a online, click and flip a coin in hopes to win, i want some really mechanical aspects and allow my players to tune the cars. I'll go...

Oh and please, let's just keep the conversion about car speed calculation for now, thanks for the help rohanprabu, but i'd like to focus only on one aspect at a time. When the speed calculation works, i'll focus on calculating the accelleration potential...

Thanks regor60, don't know if i updated about the speed yet so here goes what i have now. Name Corolla Weight 2850,00 Inertia 0,00 RPM Increase Max 0,00 Base Torque 162 At Base RPM 4000 RPM 6000 Torque 243 Power /s 24300 Shaft rev / s 100,00 Torque converter applied friction 100%...

Ok, so i'd need to evaluate the friction characteristic for asphalt which would give me the "Ug" sign (Not sure if it's a Ug, don't even know how you are displaying this). Can you tell me where to find such an information? Also, what is N, the weight of the vehicule in this case? I would also...

So, if i undestand your post correctly, friction can affect the speed of the car? If so how? Is it calculatable?

Yeah that i was aware of, i knew that there are all kinds of factors that may affect the distance, what i'd like to point out though, right away, i am not a mathematician. Just a more than average programmer that knows what he's doing, so usage of VcM = RW is like pure mystery for me. Please...

ps: Indeed the gear ratios where high, i was trying to match the speed of a toyota corolla at certain RPM and found that the only way was to achieve this by tweaking the transmission gear ratios... But now that the wheel circumference is good, i can put much more logical and reallistic numbers...