Is coasting to a stop more efficient than regen to a stop?
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I made a prediction in Sept here;
https://www.chevybolt.org/threads/i...on-is-not-the-answer.46214/page-2#post-769736
I've never blocked a person before (nor advocate for it), but I struggle to come up with less reasonable individuals.
Some of the more colorful posts were unfortunately removed by mods in the other forum.
https://www.chevybolt.org/threads/i...on-is-not-the-answer.46214/page-2#post-769736
I've never blocked a person before (nor advocate for it), but I struggle to come up with less reasonable individuals.
Some of the more colorful posts were unfortunately removed by mods in the other forum.
A 230-mi/day commute is rare, but there are two vehicle usage scenarios, in which it's not common to clock 200+ miles/day each day: (1) Driving for Uber, especially if you do city-to-airports routes, and (2) Rural last-mile deliveries. Here is what the figures could look like.That translates to about 230 miles per weekday. That's the extreme edge of the 2017 Bolt's nominal range, so we're limited to warm weather Bolt owners willing to drive 60 mph on their 230 mile daily commute without any elevation changes, headwinds, or rain.
If the average speed of such a vehicle is 22 mph, it will take 10.5 hours to accrue the 230 miles we are talking about. With the energy efficiency of 3 kW/mi, the vehicle would use 77 kW*h for that. This amount of energy could be replenished on L2 "between the shifts" in 11 hours that are still left from , assuming the effective charging speed of 7 kW. The 10.5 + 11 hours does fit into the 24 hours daily
You have made a very astute observation.
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466 Posts
Cool story bro.. not quite sure what any of that has to do w what he said though.
If he was actually discriminating against, or being hurtful towards you in any way, I, and likely many more here, would be totally against him. But I don't see it, and from the other responses, neither does anyone else.
Now, if you are overly sensitive to the use of any word that can be remotely tied to race (so much so that you're offended by things "we" can't see), perhaps just say something to him before accusing him of racism. "Hey man, not sure what you meant there, but as a native, that reservation phrase is kinda treading the line".. then everyone stays reasonable.
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466 Posts
If you'll accept Scottish decendents, you're good.
We try not to get our shorts in a knot. Easier these days now that there's a king on the throne.. we don't have to wear 'em. 😄
I have Scottish heredity on my mother’s side so I hope it’s ok for me to say the S-word out loud in public.
When I was a little boy, we went to spend a Saturday with one of my dad's friends from work. I had great fun playing on all the neat machinery he had, and watching him, and my dad, work on some project. My mom hung out with his wife, as they made lunch. It was a nice visit, and I probably wouldn't remember it today. But towards evening, I was sleeping in the back of our car, as the adults chatted in the yard. As they were saying their goodbyes, my mom looked at me asleep in the back seat, and said, "Oh look! He is sound asleep. He looks like a dead Indian." This was the kind of braindead stuff that was said all the time back then. Sadly, this time it ruined a lovely day, and a friendship. The wife was an indigenous American. No words were exchanged as they got in the car, and we left. Once down the driveway, there was a heated discussion in the front seat, along the lines of, "What the h3ll were you thinking? I don't know. It just popped out." My mother was as kind as anybody I have ever met, and she was the butt of many Polack jokes. This kind of bigoted language was everywhere, like the air we breathe. Things have gotten much better for the most part, but we still have a long way to go.
I suspect it's a moving target. People being what they are, new words will always be invented to ridicule or stereotype, and other people will always take offense to them. I think that some will never learn the difference between an intentional snub and a unintentional remark, perhaps borne out of ignorance. And others will never learn to heed anyone's feelings but their own.
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3,838 Posts
Please just stop with this nonsense. There is nothing that backs up what you are saying.
[mod deleted off topic]
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1,900 Posts
I prefer L mode. Living here with all the hills and mountains L mode is way less stressful than trying to manually eek out a little more range. Like today coming over the mountain from Asheville on I-26 going up the mountain I lost 24 miles of range in 14 miles, then coming down I regained 22 miles of range in 15 miles in L mode. I’ll take that any day.
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8 Posts
Coast all the time in flat as pancake in CA Central Valley, The little coast regen slows me to the cars in front, then use the paddle. 1 pedal seems to strong here in Jellystone.
Physics would predict that using L to slow the car via regen or the brakes/regen should be the same. However, if you're coasting and ultimately using the brake pedal, there's a chance that you may also engage brake caliper (if you brake "hard" enough), then you're losing that momentum to heat, rather than capturing it by the regen process.
For most drivers, I suspect, there would be no real difference, and this is simply an academic exercise in splitting hairs. 😀
For most drivers, I suspect, there would be no real difference, and this is simply an academic exercise in splitting hairs. 😀
I use some physical braking to keep the rotors from rusting up. After rain especially. Use L mode in stop and go city and parking lots. Use the paddle for the occasional stops. Often stop at a light in D, then hit the paddle briefly to hold the car stopped and be ready for the accelerator when green. The car motor will hold the car at stop if not on much of an incline. I find the car wants to sneak ahead on me if holding it stopped with the brake peddle. That would also be using some energy pushing against the brakes. Probably uses less holding the car stopped.
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466 Posts
Very much so.
I do a lot of country road driving, so I'll coast in N towards a predictable stop, but come back into D or L for the final deceleration, so still using regen (other than once every few weeks I'll use the brake pads for a day to take any rust off the rotors). Am I saving much electricity? No way. Is there a benefit to not pulling more power out of the batt and then returning it (in terms of degredation), sure, but again it's going to be a tiny fraction of your day's useage. Would I put up w it in heavier traffic? Not a chance. On country roads where you don't have to put up w the unpredictability of other drivers, its effortless. Having to go back and forth because you're behind someone that's riding the brakes would be infuriating.
To those who say it's unsafe, it's literally just like driving a manual, except you don't have to touch a clutch. Need speed all of a sudden? Pull the lever back as if you were shifting into 4th, and press the throttle.
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76 Posts
If by coasting you mean being in "D", that's not correct. Being in D does add a smaller amount of regen than being in L. Where being in D is more efficient is because you let off the throttle sooner, thus using less energy than in L, which does recoup more energy than being in D, but it saves less than the difference in consumption from driving in D.
I prefer driving in L in most cases, but if I'm driving downhill on a mountain road, I put it in D and use little if any throttle and use the regen paddle for any braking that's needed.
Where L is best is the added sense of control and less wear on the brakes. By the way, you can come to a complete stop and stay there and take your foot off the brake in D if you use the regen paddle all the way to being stopped, something I didn't learn until I had been in my Bolt for five years.
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