Learned something about my car's reluctant DFCO behavior
I've previously observed that my VW is often reluctant to DFCO except under certain perfect conditions. I recently observed something: When it would normally not DFCO, such as after a downshift, it will DFCO if I brake moderately (not merely enough to trigger the brake lights) first. I guess it's kinda like when you eat something to show your dog that it's ok to eat.
I think that's actually the engine braking protection that's engineered into my car. It has a feature that's supposed to prevent engine braking induced skids, where it will feed a little gas to prevent engine braking. |
makes sense. don't you love overcomputerized junk that tries to think for you?
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Actually, I was wrong...it's some other stupid bit of overcomputerized junk trying to think for me. Here's the feature I thought it was:
https://www.vw.com/rabbit/highlights/...braking-assist Quote:
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If it's variable engine braking, it's VERY poorly implemented.
The idea is fine, and might even be helpful in the wet or out on a racetrack. You'd think that any engine braking program would be driven by wheel rotation data. Only when the rear wheels are starting to slip would the ECU kick in a bit of gas. |
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