low range and creap - Chevrolet Volt Forums: Chevy Volt Forum
 
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post #1 of 4 (permalink) Old 04-11-2017, 08:56 PM Thread Starter
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low range and creap

is there a speed limit in low range? on level ground our 2012 Volt creep about 4 MPH. I have read Chevrolet's reason for this. when setting stopped with the brake on are the motors still pulling against the brake and using up energy?
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post #2 of 4 (permalink) Old 04-14-2017, 11:15 AM
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Interesting question, anybody know?
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post #3 of 4 (permalink) Old 05-04-2017, 01:52 AM
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one pedal drive

It seems that the low range only regens down to 4 mph, then starts to apply positive torque. If there is a way that a knowledgeable tech can reprogram the "automatic transmission creep" out of the early cars, then I would love to know about it. More than the touch dash, more than the impossible drivers window, the lurch forward when you lift off the brake is the one thing that I REALLY DON'T LIKE. The only AT car in the family is my mother-in-law's Taurus and it barely creeps at all. If we could trash the creep, we would be much closer to a one pedal drive. As it is, riding the brake in traffic so that I don't run into the car ahead makes me grind my teeth. If I trade this car between now and retirement, it will be because of that one "feature."
Happily it is not wasting power torquing the motor against the brake. At least not all the time. I believe that it monitors the brake light. If you come to a complete stop on a significant hill, then release the brake, you can feel the momentary lag before the torque arrests a rearward roll. Ergo it isn't on all the time. That would have been a gross oversight in a well developed package. Still the creep is so neatly integrated that a month passed before I was satisfied that it wasn't, like a high idle ICE with AT, pulling the whole time you sit at the light. I'm really glad that we have hills here so that I could see that.
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post #4 of 4 (permalink) Old 05-07-2017, 04:09 PM
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It has been explained on another forum that the engineers have intentionally designed the Volt to creep forward like it does. The reasoning was so the Volt would drive like a "normal" car.
I have owned many cars and trucks over the years. From many manufacturers and many with automatic transmissions. All of the automatic transmission vehicles would creep forward on level ground at idle with my foot off the brake. It is normal.
Note: I rarely visit this forum as it is poorly moderated and is overrun with spam like advertising posts and irrelevant posts.
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