Will Electric Vehicles Be Viable? When?

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Brake Horse Power
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Joined: 25 Oct 2017, 21:36

Re: Will Electric Vehicles Be Viable? When?

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3jawchuck wrote:
03 Jun 2020, 20:59
hollus wrote:
03 Jun 2020, 20:03
Hemp???!!! What used to be used to make strings?
Other than the obvious joke... what for? Where?
Probably in plastics that are under minimal strain. It could also be part of the noise insulation. This is not new in the industry and is just good marketing by BMW to highlight something they already use.
They had in in the I3 from the beginning which was 2012 I think at launch.

Image

The material structure is still visible in the interior. I like it

Image

Just_a_fan
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Joined: 31 Jan 2010, 20:37

Re: Will Electric Vehicles Be Viable? When?

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Plant-based composites are nothing new. Humans have been using wood for millennia - it's the original composite. :lol:
If you are more fortunate than others, build a larger table not a taller fence.

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strad
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Joined: 02 Jan 2010, 01:57

Re: Will Electric Vehicles Be Viable? When?

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@BHP.. While not right for me, I hope you enjoy it. :wink:
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss

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Big Tea
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Joined: 24 Dec 2017, 20:57

Re: Will Electric Vehicles Be Viable? When?

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Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
When arguing with a fool, be sure the other person is not doing the same thing.

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djos
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Location: Melbourne, Australia
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Re: Will Electric Vehicles Be Viable? When?

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Big Tea wrote:
04 Jun 2020, 13:04
Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
"In downforce we trust"

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Big Tea
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Joined: 24 Dec 2017, 20:57

Re: Will Electric Vehicles Be Viable? When?

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djos wrote:
04 Jun 2020, 13:15
Big Tea wrote:
04 Jun 2020, 13:04
Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
Wonder if it works in reverse? Low drain cooling in summer?
When arguing with a fool, be sure the other person is not doing the same thing.

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djos
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Joined: 19 May 2006, 06:09
Location: Melbourne, Australia
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Re: Will Electric Vehicles Be Viable? When?

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Big Tea wrote:
04 Jun 2020, 13:38
djos wrote:
04 Jun 2020, 13:15
Big Tea wrote:
04 Jun 2020, 13:04
Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
Wonder if it works in reverse? Low drain cooling in summer?
You would think it'd be a reverse cycle heat pump - there's not much point in having two heat pumps (cause that is what a refrigerated AC unit also is, it just runs in the opposite direction).
"In downforce we trust"

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Andres125sx
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Joined: 13 Aug 2013, 10:15
Location: Madrid, Spain

Re: Will Electric Vehicles Be Viable? When?

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djos wrote:
04 Jun 2020, 13:15
Big Tea wrote:
04 Jun 2020, 13:04
Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
What is the actual issue? Lack of heating or too much battery consumption?

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Big Tea
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Joined: 24 Dec 2017, 20:57

Re: Will Electric Vehicles Be Viable? When?

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Andres125sx wrote:
05 Jun 2020, 07:55
djos wrote:
04 Jun 2020, 13:15
Big Tea wrote:
04 Jun 2020, 13:04
Something that I wondered about recently was cabin heating. There is a vid here of the Tesla option

https://www.youtube.com/watch?v=S7wxGl7m2sw
Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
What is the actual issue? Lack of heating or too much battery consumption?
I assumed it to be the tie in between the worst operating condition for the battery being the time of extra drain.
If any could be saved of the 'narrow end' it would be a disproportionate saving (on paper)
When arguing with a fool, be sure the other person is not doing the same thing.

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rscsr
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Joined: 19 Feb 2012, 13:02
Location: Austria

Re: Will Electric Vehicles Be Viable? When?

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Big Tea wrote:
05 Jun 2020, 11:39
Andres125sx wrote:
05 Jun 2020, 07:55
djos wrote:
04 Jun 2020, 13:15


Heat pumps are great till the temps drop down to almost zero degrees centigrade, then you need to add an electric Heating element to defrost the system Or run them in reverse which does the opposite of what you want when it’s cold.

We have this issue in winter whenever the temps drop below ~4c.
What is the actual issue? Lack of heating or too much battery consumption?
I assumed it to be the tie in between the worst operating condition for the battery being the time of extra drain.
If any could be saved of the 'narrow end' it would be a disproportionate saving (on paper)
Isn't that just the problem, that your radiator is freezing?

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Big Tea
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Joined: 24 Dec 2017, 20:57

Re: Will Electric Vehicles Be Viable? When?

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rscsr wrote:
05 Jun 2020, 12:09
Big Tea wrote:
05 Jun 2020, 11:39
Andres125sx wrote:
05 Jun 2020, 07:55


What is the actual issue? Lack of heating or too much battery consumption?
I assumed it to be the tie in between the worst operating condition for the battery being the time of extra drain.
If any could be saved of the 'narrow end' it would be a disproportionate saving (on paper)
Isn't that just the problem, that your radiator is freezing?
yes, but as he says, it is not going to bother 90% of drivers. If its that cold a car is probably not what you want.
When arguing with a fool, be sure the other person is not doing the same thing.

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Andres125sx
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Joined: 13 Aug 2013, 10:15
Location: Madrid, Spain

Re: Will Electric Vehicles Be Viable? When?

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Big Tea wrote:
05 Jun 2020, 12:19
rscsr wrote:
05 Jun 2020, 12:09
Big Tea wrote:
05 Jun 2020, 11:39


I assumed it to be the tie in between the worst operating condition for the battery being the time of extra drain.
If any could be saved of the 'narrow end' it would be a disproportionate saving (on paper)
Isn't that just the problem, that your radiator is freezing?
yes, but as he says, it is not going to bother 90% of drivers. If its that cold a car is probably not what you want.
...

snow, thin wheels, rwd, no gears so constant push from still to top speed, loads of torque to keep the slide in control... I want! :mrgreen:

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strad
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Joined: 02 Jan 2010, 01:57

Re: Will Electric Vehicles Be Viable? When?

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If its that cold a car is probably not what you want.
.
Explain please.
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss

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Big Tea
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Joined: 24 Dec 2017, 20:57

Re: Will Electric Vehicles Be Viable? When?

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strad wrote:
05 Jun 2020, 20:44
If its that cold a car is probably not what you want.
.
Explain please.
Very few people in the world are going to need that sort of car to commute many days in the very low minus conditions where that becomes a problem. No doubt there will be some, but probably not worth influencing the car design for just a couple % possible customers who could probably find better options than a 'sporting' style car if conditions were that bad.

I may be wrong, but a better equipped 4X4 would be higher up my shopping list. Something with more ground clearance and a winch :mrgreen:
When arguing with a fool, be sure the other person is not doing the same thing.

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strad
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Joined: 02 Jan 2010, 01:57

Re: Will Electric Vehicles Be Viable? When?

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@Big Tea.. I'm still a little confused -4°C= 24.8°F right? Nobody said anything about deep snow just temp.
Many people drive 2wd cars in 25° weather...Quite frankly, snow or no snow.
I will admit that every winter I am amazed by the declining talent behind the wheel though. :wink:
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss

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