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#11
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traction control algorithms
> It seems that for some cars, TC is achieved by skipping ignition
> for a few steps. That would end up putting unburnt fuel and air into the exhaust, which would ignite and probably do some damage, or at least create a lot of unwanted head in the exhaust system. It's more likely that TC systems skip fuel delivery to cylinders in a cyclic pattern perhaps from 1 cylinder every 4 revolutions to 2 cylinders every 2 revolutions switching which cylinders are skipped to keep temps even. The other method is to retard the spark a bit, but generally that doesn't cut much power. |
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#12
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traction control algorithms
"rcgldr" > wrote in message
... >> It seems that for some cars, TC is achieved by skipping ignition >> for a few steps. > > That would end up putting unburnt fuel and air into the exhaust, which > would ignite and probably do some damage, or at least create a lot > of unwanted head in the exhaust system. It's more likely that TC > systems skip fuel delivery to cylinders in a cyclic pattern perhaps > from 1 cylinder every 4 revolutions to 2 cylinders every 2 revolutions > switching which cylinders are skipped to keep temps even. The other > method is to retard the spark a bit, but generally that doesn't cut > much power. > > > > Went to an Aussie V8 Supercar race a few weeks ago - you should hear those things "BOOM" between gear changes due to ignition cut. Awesome at first, annoying after about an hour. |
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