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Rec.Autos.Simulators Archive

GP3 split axis modeling error?

7 posts by 6 people · 30 Oct 2000 18:45 UTC - 31 Oct 2000 14:50 UTC

R Keating 30 Oct 2000 18:45 UTC#223973
Now that I have split axis working I wanted to see how well it was modeled. View the car from the rear for a better view of what is happening. From a stop with the car in first gear, step fully on the brakes and fully on the throttle . Now slowly let off of the brakes so the car starts to move but the front wheels stay locked and are skidding along the ground (so far, so good). Now turn the front wheels left and right. Oops, you are steering the car even though the front tires are locked ... that's not accurate. If this is modeled incorrectly, does the use of split axis give an unfair advantage because you can lock up the front wheels and still steer? Let me know if I'm missing something, but this seams wrong to me. Russell
"Russell Keating" <[email hidden]> wrote in message news:8tkfjo$[email hidden]... > Now that I have split axis working I wanted to see how well it wasmodeled. > > View the car from the rear for a better view of what is happening.From a > stop with the car in first gear, step fully on the brakes and fullyon the > throttle . Now slowly let off of the brakes so the car starts tomove but > the front wheels stay locked and are skidding along the ground (sofar, so > good). Now turn the front wheels left and right. Oops, you aresteering > the car even though the front tires are locked ... that's notaccurate. I think the fact that the car survived having 800+bhp pumped into the clutch with the car stopped is more inaccurate!!! Scott > If this is modeled incorrectly, does the use of split axis give anunfair
Quoted text (7 lines)> advantage because you can lock up the front wheels and still steer? > > Let me know if I'm missing something, but this seams wrong to me. > > Russell > >
Russell Keating <[email hidden]> wrote in message news:8tkfjo$[email hidden]... > Now that I have split axis working I wanted to see how well it wasmodeled.
Quoted text (13 lines)> > View the car from the rear for a better view of what is happening. From a > stop with the car in first gear, step fully on the brakes and fully on the > throttle . Now slowly let off of the brakes so the car starts to move but > the front wheels stay locked and are skidding along the ground (so far, so > good). Now turn the front wheels left and right. Oops, you are steering > the car even though the front tires are locked ... that's not accurate. > > If this is modeled incorrectly, does the use of split axis give an unfair > advantage because you can lock up the front wheels and still steer? > > Let me know if I'm missing something, but this seams wrong to me. >
I'm not 100% sure but i think the fronts may move in this situation, I'm not totally sure on this area though.
"GraDee" <[email hidden]> wrote in message news:8tkt3l$rsu$[email hidden]...
Quoted text (7 lines)> > Russell Keating <[email hidden]> wrote in message > news:8tkfjo$[email hidden]... > > Now that I have split axis working I wanted to see how well it was > modeled. > > > > View the car from the rear for a better view of what is happening.
From a > > stop with the car in first gear, step fully on the brakes andfully on the > > throttle . Now slowly let off of the brakes so the car starts tomove but > > the front wheels stay locked and are skidding along the ground (sofar, so > > good). Now turn the front wheels left and right. Oops, you aresteering > > the car even though the front tires are locked ... that's notaccurate. > > > > If this is modeled incorrectly, does the use of split axis give anunfair > > advantage because you can lock up the front wheels and stillsteer? > > > > Let me know if I'm missing something, but this seams wrong to me. > > > > I'm not 100% sure but i think the fronts may move in this situation,I'm not > totally sure on this area though. Easy to test, just get someone to sit in your car with their foot hard on the brake with the wheel on full lock, while you tow it exactly forwards with another car. Dunno if it will work or not but I have a sneaking suspicion that it might turn as well.... Scott
Scott Boham <[email hidden]> wrote in message news:8tl2l9$biu$[email hidden]...
Quoted text (37 lines)> "GraDee" <[email hidden]> wrote in message > news:8tkt3l$rsu$[email hidden]... > > > > Russell Keating <[email hidden]> wrote in message > > news:8tkfjo$[email hidden]... > > > Now that I have split axis working I wanted to see how well it was > > modeled. > > > > > > View the car from the rear for a better view of what is happening. > From a > > > stop with the car in first gear, step fully on the brakes and > fully on the > > > throttle . Now slowly let off of the brakes so the car starts to > move but > > > the front wheels stay locked and are skidding along the ground (so > far, so > > > good). Now turn the front wheels left and right. Oops, you are > steering > > > the car even though the front tires are locked ... that's not > accurate. > > > > > > If this is modeled incorrectly, does the use of split axis give an > unfair > > > advantage because you can lock up the front wheels and still > steer? > > > > > > Let me know if I'm missing something, but this seams wrong to me. > > > > > > > I'm not 100% sure but i think the fronts may move in this situation, > I'm not > > totally sure on this area though. > > Easy to test, just get someone to sit in your car with their foot hard > on the brake with the wheel on full lock, while you tow it exactly > forwards with another car. Dunno if it will work or not but I have a > sneaking suspicion that it might turn as well....
Maybe it would be a good idea to try it in someone else's car and not your own. :)
Ian P 31 Oct 2000 11:15 UTC↳ reply to TH^v^#223818
Good advice !! :) -- Ian P <email invalid due to spam> TH^v^ <[email hidden]> wrote in message news:ShqL5.913$[email hidden]... > > Easy to test, just get someone to sit in your car with their foot hard > > on the brake with the wheel on full lock, while you tow it exactly > > forwards with another car. Dunno if it will work or not but I have a > > sneaking suspicion that it might turn as well.... > > Maybe it would be a good idea to try it in someone else's car and not your > own. :) > >

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