80% charge in one hour?

Batteries, Chargers, and Battery Management Systems.
billvon   100 MW

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Re: 80% charge in one hour?

Post by billvon » Feb 16 2019 6:40pm

Chalo wrote:
Feb 16 2019 3:01pm
So have a different per-vehicle economy standard for commercial trucks and industrial vehicles, and exempt emergency vehicles from the requirements. The point is to make all, not just some, of the vehicles within a given class conform to standards.
If that happened you'd see the law of unintended consequences kick in immediately. You'd have 50mpg standards for passenger cars and 20mpg standards for large, roadworthy farm vehicles. So most people would buy large farm vehicles.

"So you have to prove you are a farmer before you buy one!" you say. Great. Lots of people would then become "christmas tree farmers" to save the money and get the cool big (and cheap) truck. The minor hassle would be worth the $10,000 savings to them.

"So make standards for christmas tree farmers, and require them to prove sales" - they sell a few trees to wood chippers.

"So require them to keep records of the people they sold them to specifically for Christmas." That might work. But if they "sell" them only to friends?

And in ten years you will wonder why you need to display a permit if you put up a Christmas tree.
Imagine a system that allowed fleet average crash safety ratings.
If implemented well, that would save a lot of lives.
Why should we have (for example) city buses that weigh 30,000 pounds empty?
Because sometimes they carry 80 people - and when they do that, they are by far the most efficient vehicles on the road. And the problem isn't their weight; it's their fuel consumption. The best way around this? Have a passenger-miles per gallon fleet requirement.
If every personal vehicle is only allowed say 4 liters per 100km, then we would see the tradeoffs inherent in using an excessive vehicle.
See above.
--bill von

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Chalo   100 GW

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Re: 80% charge in one hour?

Post by Chalo » Feb 16 2019 6:49pm

You just made the case for a single fuel consumption limit for all road vehicles. Which would also be fine by me.
This is to express my gratitude to Justin of Grin Technologies for his extraordinary measures to save this forum for the benefit of all.

billvon   100 MW

100 MW
Posts: 2925
Joined: Sep 16 2007 9:53pm
Location: san diego

Re: 80% charge in one hour?

Post by billvon » Feb 16 2019 7:01pm

Chalo wrote:
Feb 16 2019 6:49pm
You just made the case for a single fuel consumption limit for all road vehicles. Which would also be fine by me.
Result - more traffic and more fuel consumption. Again, unintended consequences of a well meaning effort.
--bill von

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