HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
News
Electronics & Test

Slideshow: Is Tesla's Model S the Best Ever?

NO RATINGS
1 saves
View Comments: Newest First|Oldest First|Threaded View
Page 1/7  >  >>
Charles Murray
User Rank
Blogger
Re: optimism is fine, realism intervenes
Charles Murray   8/5/2013 6:58:26 PM
NO RATINGS
I think you're right, Cabe. Owners might be not be inclined to take their $90,000 cars on a cross-country roadtrip.

Cabe Atwell
User Rank
Blogger
Re: optimism is fine, realism intervenes
Cabe Atwell   6/27/2013 11:10:06 PM
NO RATINGS
30 minutes to charge for a 200 mile distance for a car costing $90,000 a pop? That may be fine for city purposes but not for cross-country distances. Then again would you take a luxury car on a long road trip?

With Telsa's nationwide charging network, perhaps this not be a big deal after all.

C

patb2009
User Rank
Gold
Re: optimism is fine, realism intervenes
patb2009   6/9/2013 7:21:44 PM
NO RATINGS
Arev

 

in the 1920's and 30s running out of gas was a problem too.  Before there were service stations you had to buy gas in town at a hardware store.  

 

I imagine as Electrics become more common, you will see wreckers with a rapid jump battery kit, you will see more Level 3 chargers, and drivers will be more careful about how they handle the risks.

 

 

patb2009
User Rank
Gold
Re: optimism is fine, realism intervenes
patb2009   6/9/2013 7:15:07 PM
NO RATINGS
Rogue Says

"Still, the range is lacking (200 miles, then wait for 4-6 hours?).  T"


The Tesla Model S comes in 2 models  60 KWH and 85 KWH.  The 85 KWH model has an EPA rang eof 265 miles and a Tesla Range of 300 miles.

 

According to Tesla their Supercharger will put 200 miles of range on in 30 minutes,

now if you use a Level 2 charger yes it will take a long time, but the supercharger network is meant to allow reasonable long distance trips.  It's not ideal and the Tesla is not the perfect car, it's a luxry performance car not a Model T, but, that's okay.

 

If you have 85K, get one. if you don't, don't.

 

in 5-7 years you will ahve some amazing choices.

Rob Spiegel
User Rank
Blogger
Re: Motor Trend Car of the Year
Rob Spiegel   6/9/2013 6:36:04 PM
NO RATINGS
I agree, Patb2009. There is a lot of potential with electric vehicles, but we're early in their devewlopment. I think we still hve a long way to go.

Charles Murray
User Rank
Blogger
Re: optimism is fine, realism intervenes
Charles Murray   6/5/2013 7:19:50 PM
NO RATINGS
Yes, AREV, first responders need to be trained in the dangers of electrics and hybrids. Some hybrids have electrical architectures in excess of 300, 400, and 500V.

AREV
User Rank
Gold
Re: optimism is fine, realism intervenes
AREV   5/30/2013 9:52:14 AM
NO RATINGS
Add to this mix that electric car companies and support companies are going broke by the buckets. Yesterday it was Better Place that robotically replaced batteries. I think the business plan is kiltered against the electrics. One percent can buy $90,000 cars. They will not build a base. If a stripped commuter for the 5-10 mile driver cost sub $15,000 they may sell like popcorn. Studebaker went broke even though they had the coolest car - the Avanti. No buyer base to support the car company type cool. Electrics need to be Model Ts that the consumer could not afford to pass up.

I live on a highway. From time to time somone will try to stretch an extra 20 miles out of a tank of gas. They fail. Someone brings a gallon of gas, the car proceeds to the filling station and 2 minutes and $50 later they are on their way. What is the plan for electrics? Pick up the car with a tow truck, take it to a charger, wait 6 hours . . .I could see a battery on a two wheel cart that could be attached to the back of the car, plugged in and the car limps somewhere fro a charge. If the dead battery could be dropped off and another installed and you're off. I aslso can see in excess of 200 wind mills from my home. They are never all running. If a truck full of batteries could pull up to the base of a un needed power source and one hook up charge 400 battery packs for no detriment to other power users and a source to save power that was not needed else where . . Benifit to power creator, car owner, midle man trying to supply charged batteries to car owners, we have a winner. There would probably be some Obama bucks too.

What is going to happen when someone is electrocuted, burnt or killed possibly after an accident? Are all first responders told to take a VOM meter to an accident site now?

Again a good business plan needs to carve a path to success that I have not seen.

 

RogueMoon
User Rank
Platinum
optimism is fine, realism intervenes
RogueMoon   5/28/2013 9:45:23 AM
NO RATINGS
I'm glad to see that Tesla has spent a lot of effort making the creature comforts the best in the biz.  For a $90K price tag, one would expect nothing less.  One might ask why their competitors (Audi, Porsche) wouldn't want to spend more effort in making a better ride for their high-end cars.  Keeping the driver happy with how her car handles is always a wise focus.  For the 10% of the 1% that buy a Tesla, it's a great deal.

Still, the range is lacking (200 miles, then wait for 4-6 hours?).  To get a mass-market car, you'll only be selling to commuters on a fixed route.  The price tag better be REALLY cheap (less than $20K out the door) if they want any traction in the extremely competitive mass-market.  You're asking the average consumer to sacrifice a lot of convenience in driving an electric car.  We all like to come and go as we please, change our daily routes at a whim, or even drive another 100 miles without a second thought.

Even the wealthy don't like having to have a backup car for any long commutes as plans can change within minutes while the battery pack takes hours to catch up.  No one likes to get stranded (even with a 50 foot extension cord in the trunk).  Even for this best of all electric vehicles, a paradigm shift in the car culture is still required and this is a really big ship to turn.

too optimistic indeed...even if electric cars make up 15% of the cars on the road today, is there enough lithium world-wide for all the battery cells needed?  Be prepared for conflict in south america unless there's a more abundant chemistry out there.

The linchpin is in the battery packs.  Re-double the battery life (170+ kWhr) and then cut the recharge time (empty-to-full) by one-fifth (1 hour max.) and you "may" have a outside chance to displace the internal combustion engine.  Until then, it's liquid hydrocarbon fuels for vehicles for the forseeable future (15 years and beyond).  

It's a nice goal to have more electric cars, but there are very practical reasons why it hasn't happened before or any time soon.

patb2009
User Rank
Gold
Re: too optimistic revisited
patb2009   5/27/2013 2:44:02 PM
NO RATINGS
william

1) your numbers are off.

 the chevy Volt has a 16 KWH batteyr but only uses 10 KWH to allow the battery margin.

The Nissan Leaf uses a 24 KWH battery.  The only car that has a 80 KWH battery is a Tesla Model S.

 

2) A rooftop solar array feeds the grid, so, if i am at work plugged in "Effectively",

the array on the roof of my house is feeding my car.

 

 

 

William K.
User Rank
Platinum
Re: too optimistic revisited
William K.   5/27/2013 2:25:43 PM
NO RATINGS
Pat b, if you use your 8KW solar generation capacity to charge the EV battery, and if your system is 100% efficient, then by my math it would require 10 hours to restore 80KwH of battery charge, if that was what was needed, whiich is the anticipated capacity of a medium size EV battery. But if you drive to work and work during the daylight hours, or at least some of the daylight hours, those can't be spent charging the EV. So now there exists an inconvenient logistics problem of the type that has been bothering the EV folks for quite a while. It also is a sore point for the solar power folks. 

While it would certainly be wonderful if we could make it work for everybody, most of the benefits would only be available to a small portion of our people, for a multiplicity of reasons, which include a complete lack of anything even starting to approach technical competence. And I do NOT feel that technical incompetence should be rewarded. 

Page 1/7  >  >>
Partner Zone
Latest Analysis
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Two students have created a voice-command system for our homes, based on the simple and affordable Raspberry Pi.
Optomec's third America Makes project for metal 3D printing teams the LENS process company with GE Aviation, Lockheed, and other big aerospace names to develop guidelines for repairing high-value flight-critical Air Force components.
This Gadget Freak review looks at a cooler that is essentially a party on wheels with a built-in blender, Bluetooth speaker, and USB charger. We also look at a sustainable, rotating wireless smartphone charger.
Texas Instruments is rolling out a new microcontroller that could make the design of sensor networks and data logging systems simpler and less costly.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Aug 4 - 8, Introduction to Linux Device Drivers
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: August 12 - 14
Sponsored by igus
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service