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Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

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Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#91
post #82
post #20

We just managed to sell another flagship GM vehicle, and the software was so bad, it was nearly a deal-breaker. (Most years of this model had software bugs that were so bad, they could literally kill you — for example, the exhaust system could overheat, and burn the car down). Also, basic electro-mechanical things, like seat belts and the FM radio started to die after 3-4 years. This is with light use in CA. Even whe…

"Kill you"? Sorry but this is fud unless you can cite death rates. This site here lists the Volt as lowest death rate listed among small 4-dr cars. http://www.iihs.org/iihs/topics/driver-death-rates

I looked, and I see the error bar is 0-39, which is so large that the average death rate is within that error bar.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#92
post #88
post #81

Earlier quoted context omitted.

I'm wary of comparing with laptops and cell phones, because a proper EV drivetrain will suffer much less degradation. Consumer electronics batteries are poorly cooled and prioritize daily capacity over long-term life, so they degrade much more quickly. I'm sure you know this, but I see a lot of people thinking their car battery will only last 2-3 years because that's how their cell phone is. For what it's worth, I ap…

I thought I read, perhaps here, that Tesla over-provisions its batteries and uses software to optimize the battery "working set" to minimize perceptible range degradation.

Tesla actively cools its batteries and chose a long lasting battery chemistry. The Leaf, does not cool the battery, and the early Leaf model had a really bad chemistry.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#93
post #22

Earlier quoted context omitted.

I love the idea of Electric cars and even own Tesla stock, but I think they're still a ways off from me seriously considering buying one. Why? I drive a large Hybrid sedan. I get a bit above 600 miles on a tank of gas without thinking about it. That's a trip from NYC to Toronto with about 100 miles of driving around range left before having to think about finding a gas station...or for our European friends, Paris to…

The only problem with your analysis is that there appear to be 100s of thousands of US consumers who want a pure electric car and not a (Edit: plugin) hybrid, many more people than are interested in hybrids. So you've got a fine personal datapoint, but you don't appear to be typical of the market, or at least of a market big enough to launch a high-volume car.

Consider that houses already typically run on electricity, and people who frequently get power outages buy gas generators - they don't say "I want a pure electric house, so I won't buy a generator" if they need and can afford it.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#94
post #45
post #40

Earlier quoted context omitted.

your case in point is that someone who wanted to park decided not to use his brakes? is removing your foot from the accelerator instead of using the brake a standard learned behavior amongst bolt/volt owners?

Yes, because that’s how regenerative braking works. This was discussed at length in the linked article.

No, actually, since it's unclear how much braking regeneration will provide, when I brake I start by taking my foot off the accelerator but if I'm at all in doubt, I'll put my foot over the brake.

Also, since Tesla regenerative braking always turns off below 5 mph, I always have my foot over the brake pedal at low speeds.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#95
post #88
post #81

Earlier quoted context omitted.

I'm wary of comparing with laptops and cell phones, because a proper EV drivetrain will suffer much less degradation. Consumer electronics batteries are poorly cooled and prioritize daily capacity over long-term life, so they degrade much more quickly. I'm sure you know this, but I see a lot of people thinking their car battery will only last 2-3 years because that's how their cell phone is. For what it's worth, I ap…

I thought I read, perhaps here, that Tesla over-provisions its batteries and uses software to optimize the battery "working set" to minimize perceptible range degradation.

I'm sure they do, I thought this video[0] was pretty interesting. He took a bunch of Tesla owner's datapoints and mapped it out. The battery will basically last you 25 years.

[0]https://www.youtube.com/watch?v=Gb_i4ihsJ1w

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#96
post #88
post #81

Earlier quoted context omitted.

I'm wary of comparing with laptops and cell phones, because a proper EV drivetrain will suffer much less degradation. Consumer electronics batteries are poorly cooled and prioritize daily capacity over long-term life, so they degrade much more quickly. I'm sure you know this, but I see a lot of people thinking their car battery will only last 2-3 years because that's how their cell phone is. For what it's worth, I ap…

I thought I read, perhaps here, that Tesla over-provisions its batteries and uses software to optimize the battery "working set" to minimize perceptible range degradation.

I don't believe they hide degradation. They do use less than the full capacity of the batteries in order to minimize degradation, though. Lithium batteries hate extremes, so if you map the official "0-100%" range to an actual range of, say, 10-90%, that will greatly prolong the life of the battery.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#97
post #22

Earlier quoted context omitted.

I love the idea of Electric cars and even own Tesla stock, but I think they're still a ways off from me seriously considering buying one. Why? I drive a large Hybrid sedan. I get a bit above 600 miles on a tank of gas without thinking about it. That's a trip from NYC to Toronto with about 100 miles of driving around range left before having to think about finding a gas station...or for our European friends, Paris to…

The only problem with your analysis is that there appear to be 100s of thousands of US consumers who want a pure electric car and not a (Edit: plugin) hybrid, many more people than are interested in hybrids. So you've got a fine personal datapoint, but you don't appear to be typical of the market, or at least of a market big enough to launch a high-volume car.

A couple counterpoints, there's something like 11 million hybrids on the road today. I'm also somebody who would like to buy an all electric car for various reasons, but the cars just aren't there yet.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#98
post #73
post #16

Earlier quoted context omitted.

to say i don't use the brakes is a little bit of a misnomer, as i use them at stoplights in order to activate the rear brake lights for other drivers. two more bits of trivia: the brake lights activate during regen for more than .2g of deceleration, and the brake rotor metal is formulated not to rust.

I'm pretty sure taking your foot entirely off the gas pedal when in "L" mode actually activates the brake lights.

It does on the Tesla.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#99
post #53

Hours per week charging is better than hours per day, but still only practical for people who can run heavy wiring to a private garage. I keep wishing gas station battery swaps were happening.

The industry cannot even standardize a charging port between Tesla and everyone else (which really is more on Tesla for using a proprietary port nobody else is using and then trying to act like they are the victims by offering royalty free access to the patents... after the fact). It will be a very, very long time before standardized batteries are a thing, if they ever will be. As soon as true self driving cars are a…

This is less of an issue than you might think: Tesla ships adapters for the most common non-Tesla charging ports.

Re: Chevy Bolt: the First Practical, Mass-Market Electric Vehicle

#100
post #36
post #20

We just managed to sell another flagship GM vehicle, and the software was so bad, it was nearly a deal-breaker. (Most years of this model had software bugs that were so bad, they could literally kill you — for example, the exhaust system could overheat, and burn the car down). Also, basic electro-mechanical things, like seat belts and the FM radio started to die after 3-4 years. This is with light use in CA. Even whe…

about 2/3's of this car is built by LG, if that makes you feel better

Considering my last two LG phones (different models) bootlooped, not really.
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