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This is apparently because Tesla engineers don't want a cold battery to receive the sudden charge that occurs when a Model S driver suddenly backs off the throttle, or descends a steep hill. So the regen is automatically disabled or limited until the battery warms up.
This has proven disconcerting to a few owners who weren't expecting it. "I was caught off guard by this over the weekend," commented one owner on the Tesla forum. "It's not hard to adjust to, but with something as important as braking, the car should stop in a consistent, predictable way."
"It's a wart on what is otherwise a superior, consistent driving experience," commented another. And, oddly, the Chevy Volt suffers no such quirk. Its regenerative braking functions consistently in all temperatures.Do Chevy engineers know something that Tesla's don't? Or vice versa?
A few Model S owners have suffered more than one of these problems.
One unfortunate buyer who took delivery in late December--when Tesla was rushing to deliver as many cars as possible before year's end--reported multiple problems with his car's paint, GPS system, body trim, and door handles.
"I am so frustrated with all of these problems," he wrote recently on the Tesla forum. "Had I known about this before I made a final order I never would've purchased this car. I wish I could take this car back to them now. Be forewarned."
But the vast majority of Model S owners aren't suffering any problems, or seem far more willing to cut Tesla some slack and give the company time to work out the few bugs.
One of them summed it up this way: "The car is just too awesome to whine about little problems that will (eventually) be taken care of."
David Noland is a Tesla Model S reservation holder and freelance writer who lives north of New York City.
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I believe you feel the same I did, when I waited for my 2011 Leaf...
I wouldn't worry about the software glitches, these are the easy solution ones.
Looking forward for your real experiences with the machine.
Regards!
We have a Model S on order and hope to receive late Feb. 2013.
Actually, that is very unlikely to be the case.
The software which controls these vehicles is extremely complex. Most of it is written either in Java, itself an extremely complex and inefficient language, easy to make mistakes in, or if it is written in C, it has to be cross-compiled on a PC-bucket and then sent over to the embedded target hardware to test. These types of programs contains lines of code in the millions; typical vehicle control program has 100 - 300 million lines of code.
This is one of the reasons why you, as the buyer, should thoroughly test any vehicle which has such electronics in it and is mostly controlled and driven by software.
*the door-opening issue is apparently a hardware issue with the door handles, not a software issue. It is an issue, though, and one that Tesla is addressing on a case-specific basis.
Can you cite the source for that statement?
From what I know and recent analysis of the Volt' SW codes (posted by GCR), it is in the 6-10 million lines range. That already pretty complex comparing to typical ICE cars...
Yes, I can, but I am quite certain you will scoff at it: experience.
Do you actually expect me to show you the source code? You should know it is proprietary and a trade secret.
Learn how to communicate better.
"He asked you for the source of your information,"
I am the source.
"I am the source."
First of all, that is NOT a good sourse since we don't even know your "real name"...
Second of all, you didn't say which type of cars you are talking about...
Third of all, I think you missed the numbers by a magnitude...
They never consider driving range because for their usual gas powered vehicle, its never an issue. Therefore they have produced invalid testing for the Model S, which has an unacceptable driving range,for all its models, for extended travel. I laugh out loud at Tesla website's claim that implies a 300 mile range on the Interstates. Or the EPA's "highway driving range"of 264 miles, also a piece of nonsense. Both are fantasies, which Green Car Reports seems unable or unwilling to
deal with. Expect 200 (or much worse) rather than 300 (or 264) range. The Model T was a game changer because it was cheap. The Model S is not. It's an around-town car. The Model T is as fast on trips.
Owner feedback that I've been following for the last few months suggest that the EPA range number (actually, it's 265) is reasonably within reach in normal driving.
What kind of criterion is that anyway?!?
Anyone should be able to have their pick of an electric car in any configuration they desire; and it should live up to their expectations.
We should NOT, repeat, NOT have to make compromises just so we can own an electric vehicle!
Owning an electric vehicle is NOT a privilege!
And by the way, while Tesla might not directly emit any emissions, unless you are charging it from renewable energy sources, it will use electricity from coal and nuclear sources, both extremely detrimental to the environment.
Also, producing the vehicle causes not only carbon emissions, but pollutes the environment as well. What do you think, how much pollution happens when the battery is made? The rubber for the seals? The fumes which are produced when the metal is cast? Any car production causes pollution. Why some people believe that the Tesla car is magically exempt, is truly beyond my senses.
Our power here in the Pacific Northwest is 85% hydro, and on top of that I have a 6.88KW solar array and pay zero electric bill. 2011 Nissan Leaf, 2000 Ford Ranger both driven about 25K miles a year, for free on sunshine in Seattle. Expecting our Model S April/May.
Refining and dispensing gas/diesel already require electricity which comes from the same source. Also, coal and nuclear is ONLY a percentage of the total electricity generation. According to EIA report, even if there are 1 million EVs on the road driving 40 miles per day, its electricity impact will ONLY equal to about 0.38% of the total electricity usage.
Producing a car cost energy. It is NO different for Telsa than a VW. But you don't need any of the fluids or ICE which reduce metal usage. Telsa is built in CA, one of the cleanest grid in the US.
Annatar. I will agree, that manufacturing batteries and charging an EV from the grid produces emissions. That said, perhaps you would enlighten me and compare total EV total emissions to the total emissions of pumping oil, transporting oil (ship, truck, train, pipeline, etc.) to refineries, refining oil into gasoline, transporting gasoline to the pump, and of course the ICE emissions.
In a fair and honest, apples to apples comparison, you may find that Tesla, EVs, and charging from the grid may be magical or least preferable.
btw - I do a lot of highway driving in my Model S. Down here in Florida averaging 75mph with the AC on, I normally get a range of about 240 miles. That's enough for me.
I don't know if he's achieved it yet but it's not for lack of trying.
Because a lot of people here are really, truly desperate for an electric vehicle, and so in their eyes, an electric vehicle can do no wrong; it is the panacea which they believe will solve global pollution.
And if I wrote that one, just one tanker produced as much pollution as all of the cars in the United States in one year, doing just a one-way sail, what would electric advocates say then?
Dear electric advocates, how do you plan to solve the tanker problem? The factories' problem? If you are truly concerned about the environment, why haven't you lobbied our government to give us more subsidies for solar panels, for example?
Or is this all just hypocrisy, since EV's are the new fashion?
Reduce everywhere we can. If we can reduce 1 tanker at a time, I will be happy.
Complaining about NOT doing enough is NOT an excuse for doing NOTHING.
Sleep mode worked great. Not one issue. However, I do wish I had floor mats for the rear seats. Although some auto companies charge extra for all their floor mats.
You should consider writing about your experiences, not second hand reporting from the TM forum.
SM
We have a Model S on order that we hope to have late FEB. 2013.
I can't help noticing that with no bio and no picture Mr. Noland is basically as anonymous as the forum commenters whose claims this story is based on and that he has no other basis for his authority than his claim of being an early hour fan who ordered the Model S which however is rather at odds with the lack of real heartfelt enthusiasm for the car and emphasis on FUD in his reporting.
"Substandard Floor Mats"? Really? Most cars don't come with floor mats AT ALL! Toyota charges $300 for carpeted floor mats. $400 is not unusual for this market. Moot also!!
Software glitches are an easy fix. But, Americans expect immediate perfection and can be very impatient. Patience can go a long way. There are people working on the software glitches, report them and it will help them fix...complaining to others is a waste of time and creates stress for yourself.
E.g:
http://www.arb.ca.gov/msprog/consumer_info/advanced_clean_cars/glossary.htm
http://driveclean.ca.gov/pev/Plug-in_Electric_Vehicles/PEV_Types.php
Mustang owners don't get worked up over the fact the Geo Metro is also a gas car, as no sane person will say they perform the same. Ditto for the Volt vs other plug-ins today... right?
Re getting 11k miles electric on a plug-in Prius (Micheal, I assume that's what you meant), it will take at most 4x as long as in a Volt, or about 3 years for someone charging daily
To be the best of my knowledge, I've never moderated a comment on the three-year debate over whether the Volt is a 'range-extended electric car' as we call it, or a 'plug-in hybrid' as others would have it.
We've made our decision on this site, and I understand that some readers disagree with it--and say so. Fair enough. That's what comments are for.
In fact, I find the whole debate rather entertaining.
-- Voltaire
Well, we are in the "cutting edge" realm here. Just b/c government says one thing it doesn't make it right or well defined.
Do you call the upcoming BMW i3 an electric? If that option of "extender" is true, do you call that extended version "EV" as well?
The line blurs, doesn't it?
@XL+, re definitions:
Diesel, hybrid (series, parallel), plug-in hybrid, hydrogen (ICE, fuel-cell), CNG, electric... all those terms key unambiguously on fuel(s) and engine(s) types. They never depend on components size, performance, usage scenarios etc.
Now, EREV. To me it is a subset of plug-in hybrid; if you think it should be a separate category instead, what key characteristic(s) should be used to differentiate them? I'm really just asking.
Full performance on electric only? The Fisker Karma is out.
Uses no gas until battery exhausted? Then hacked Priuses qualify. :/
Define it clearly. Do you call Fuel Cell cars electric?
Your point is valid though, and illustrates that as car drivetrain technologies get more blended the terminology will get even less clear.
The point is that Volt is as electric as any traditional BEV in its EV mode. Absolutely NOT different.
It is ONLY different outside its "battery" range. Well, in that case, call Volt EV+ then...
I call fuel cell cars bad science fiction written by the natural gas industry, but that's just me.
Both depends on "chemical" power to generate electricity which powers the car. Both of them have batteries...
I disagree with you since you obviously lack the knowledge on the Volt.
If the Volt operates just like an EV without a drop of gas up to the same standard of any other BEV, why isn't it an EV? Just b/c it can run on gas once its battery is out?
Well, sorry to break it to your, all your "EV" will burn diesel or gas too when they are out of battery range and getting towed by a tow truck...
Here's my cut:
EV
EREV = REEV = cars that can operate with full competence on electricity alone, using gasoline only to extend range.
PHEV = plug-in hybrids
Just like you can't label wine "Champagne" if it includes grapes grown outside Champagne, a car with a gas tank shouldn't be called an "electric vehicle".
So, why don't we put BEV as part of the larger "EV" group then? In fact, you can almost place BEV such as Leaf as part of the sub EREV group.
As the upcoming BMW i3 concept demostrates, it has an optional "range extender". Do you consider i3 in its concept as an "EV"? If so, whether it has an range extender option or NOT, it is still an EV...
EREV should be called EV+.
Volt is built differently from other PHEV. It is mainly an "EV" b/c it is designed with the max power and speed as an "EV"...
How do you get into your Tesla if there is a problem with the 12V system? You can't get to anything inside the vehicle?
I have been critical of Tesla because there is too much they don't know, that they don't know. But the recent issues with Beoing & their battery fires w/ the same battery chemistry that Tesla uses (the only car company using Li Cobalt Oxide)gives me further concerns. What happens if the charger, or BMS fails or a clich in software causes a battery over charge? Failure mode is deadly. Just wait, it will happen.
http://www.greencarreports.com/news/1081753_boeing-787-batteries-same-as-those-in-electric-cars-umm-no
As of Sunday, NTSB turned its focus from batteries to the battery management system (BMS). http://seattletimes.com/html/nationworld/2020230108_dreamlinerbattery28xml.html
A BMS is no more complex, and just as likely to fail as the ABS, or Drive-by-Wire system in a modern vehicle (including the software). ie: Probability is extremely low & there have engineered built-in redundancy, plus fail-safe modes.
It was the only time in the six years that I have had the Prius that I have been stuck. But still very frustrating.
That is strange. I would think that Tesla has battery climate control and keep its battery at a constant temperature like the Volt. If it doesn't, then how can Telsa ensure the longivity of the battery? Isn't that the entire point of battery thermal management?
Does this happen even if the car was plugged in before driving in extreme cold?
B/c leaving the battery "freezing" to "death" doesn't make sense for a large battery pack based BEV. I certainly don't want that for my EV.
Keep in mind that, at max regen, the Model S is pushing 60kW of energy back into the battery, 20 times higher than the normal charging rate of most EVs. I'm glad Tesla isn't letting me accidentally damage the cells by allowing regen when the batteries aren't warm enough.
If so, based on my battery knowledge, I don't see why draining it at 225KW or 270KW is NOT a problem but regen it at 60KW is a problem...
If this is true, then I think this demonstrates an issue/limitation with the particular Li ion battery chemistry that Tesla has selected for its battery pack...
if the charging of the battery is really a concern, then wouldn't the regen energy be better used to generate "heat" for the cabin" instead of "wasted" at the wheel? At least don't change the behavoir of the car or its driving dynamic... I would think Tesla would try to recoup that energy for something.
Tesla, like Nissan, adequately reduce regen and quick-charging depending on battery temperature (and reflect this on the dash).
This effect is probably more perceptible on Teslas, which regen more aggressively when the accelerator is released.
Re dumping all regen as cabin heat: let's just say it's nowhere near practical, nor desirable. Imagine a stack of 50 space heaters...
The regen power can still be used for warming up the battery. I seriously doubt the regen is that large. Do we know what the "regen" power rating is?
For efficiency and driving experience, it is better to recover that energy.
Also, the premium interior mats are $250, not $400. The frunk and trunk mats are extra
You have complained several times before about use of material from TMC. This article doesn't use any.
This piece is a neutral, fair high-level summary of a handful of issues that have been raised by Tesla owners who have posted on the company's own site.
I note your instructions on how Noland and GCR should practice journalism. Your advice raises a few questions: What degree of confirmation would be acceptable? Should we require confirmation of ownership? Photos of the offending condition? Sworn affadavits by eyewitnesses? Statements by Tesla that it is aware of a complaint by said owner?
Most of the time my questions go unanswered. Occasionally I get an evasive response, or a promise that a response will be forthcoming. Example: when I asked a question last June about cold-weather performance, I was promised an answer in "early to mid-fall." Then it became "January." Seven months later, I'm still waiting. And that's one of their better responses. At least they actually got back to me on that one.
I know by now, Tesla is perfect, the door problems are a lie despite Tesla's publicly acknowledging the problem, etc... When people write good things, they are true and you don't question them. When minor criticisms arise, then people are being dishonest, etc...
It must be fun to live in irrational bizarro-land, where a guy spending roughly $100K on a Tesla has his commitment to EVs & honesty questioned by someone who's never owned any type of EV whatsoever.
It is to be expected. When Apple came out with OS 10.1, it was nice but needed a lot of work. In many ways, Tesla has done an amazing job here, considering it is a car, knowing how difficult it is to bring a car to the market and with today's copious use of technology. It's a wonder it is out.
https://www.youtube.com/watch?v=OFX5R8udRO4&NR=1
http://teslaowner.wordpress.com
1. EVs are perfect and they can do no wrong and there is NO reason why there should be any complains. Everyone should rush out to get one. Any design that has anything beside a battery and electric motor are wrong and should NOT be allowed call themselves EVs. EVs are reserved for the purist and greenist of them all. They are the "angels" of the world...
2. EVs are great. They will work perfectly for some people in certain situtations. All Plugins will help with the spread of EVs whether they are EREV/PHEV or BEV. They are moving the population toward the future. In the mean time, let us embrace what works for us now. The more electric the better.
3. EVs are evil. They are bad science project protected by the liberal bias with tax payer funded credits. They will never work. They are slow, ugly and pollute b/c they are powered by coal. They take away my enjoyment of driving something that is loud, noisy and dirty.
I think both group #1 and group #3 are bad for the future of the EVs. We need to support the EV movement with realistic approach. Tesla S is an awesome car. By far, the best BEV product that we have today. But it doesn't mean it can't have faults or room for improvement. Looking at it with critical eyes will only help to improvement EVs in the long term.
The issue right now, for me personally, is that what is offered is so far off in terms of what I want and need, that electric vehicles would be a major step back, not a step forward. Again, this is for me, I am not speaking for anyone else, although I suspect lots of other people feel the same way.
For example: Tesla only comes as a sedan. Not only is that impractical for my needs, but I also detest sedans. Strike one.
Electric motor does not need a manual transmission, but I want one because for personally, if I do not have a clutch and a shifter, that is not driving; I might as well walk or use a bicycle. Strike two. Strike three is infra.
Just b/c you like riding horses, it doesn't mean we should install saddles in automobiles.
If I want to give my money for en electric car with a manual transmission, I feel that I should be able to buy one. I should be able to get what I want if I am fairly compensating someone for it.
There are a lot of "relics" people keep around in machinery, art and daily life in general, not necessarily because they are needed, but because they like them.
For example: there is no reason why cars could not be controlled by a joystick instead of the steering wheel, but we collectively kept the steering wheel because we like controlling a car that way.
Actually, it is a "hatchback".
This is not logical: the only thing it matters is whether the information is correct and useful. Knowing what my "name" is will neither change nor affect the information.
If you believe I have "missed the numbers" by and large, go right ahead and buy a vehicle laden with electronics and software. I guarantee you will remember me.
Electric vehicles are not evil. Give me that Tesla Sportwagon featured here recently, with a clutch pedal and a shifter, a true range of 300 miles under diverse conditions, and the charging infrastructure to support it, and I'll be happy to drive one!
Behold, see the men clinging to the last ritual. The only thing left to make them feel like they are in contact with the technology and master of the machine. Very entertaining.
If you drove a manual transmission vehicle, you would know. I do urge you to learn how to drive one, and I mean REALLY learn how to drive one, master it. Then you too will know, what the infatuation with the clutch and the shifter is.
It puts enjoyment back into driving, instead of turning one into a mindless plant which vegetates behind a steering wheel.
The Electric drivetrain gives you exactly that without the need of shifter and clutch. It also does so without any delay.
But feel free to "like" the old technology. It is your choice but don't tell me that it is "mindless". Just b/c you love to move a stick, it doesn't mean that motion is better.
That is correct. It is entertaining, very, very entertaining, although that is likely not what you had in mind when you wrote your cynical remark.
It is very entertaining for me, as the driver. When I am in a vehicle and if I am the person behind the steering wheel, I want to DRIVE, not to be driven around.
And by the way, that was a very chauvinistic and sexist comment; it was completely uncalled-for. The "I want to be driven" rather than drive oneself is stereotypical.
Did you know that most European women refuse to drive automatics? What have you to say to that little tidbit? Are they "macho" as well because of that?
I just cannot believe the chauvinism.
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