Battery based electric vehicles of today and tomorrow.

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   / Battery based electric vehicles of today and tomorrow.
  • Thread Starter
#271  
Here you go Gale. For the man who has everything. $100 on Ebay. Six available. What a deal!

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(Nothing in the ad suggests that he understands it. His other offerings are a wide variety of random).

My arrived yesterday. It plugs into DC charging port that bypasses both the battery charges. I have not taken it apart yet or found a schematic for the Leaf DC charging port. My brain tells me there has to be some magic somewhere for 400 volts of DC to turn into 120 volts a AC. To me it looks like an off the shelf China make 120 volt power strip with a CHAdeMO connector replacing the 120 volt male end. When I get a chance I will see if I can find any user feedback that is is not just a smoke maker. :)

With that being said I know Nissan developed technology to use Leaf cars in Japan to feed back into the power grid more like a powerwall scheme. Some used them like whole house back up generators claiming to get 2 days of back up power.
 
   / Battery based electric vehicles of today and tomorrow.
  • Thread Starter
#272  
You can post all the hypotheses there is on the subject but it does not deter from the fact that if costs are relative a self sustained energy source will win out over one that has to be recharged every time...there is no argument...costs are the crux of the issue not necessarily just the technology.

I totally agree. The fact no self sustained energy source has been discovered and implemented for vehicles is the only show stopper that I see today but like you I am rooting for perpetual motion to be found for powering vehicles of the future. It is a fact today I can recharge my cars with gas tanks much faster and go farther than I can the Leaf with the 400 volt DC tank.
 
   / Battery based electric vehicles of today and tomorrow. #273  
You can post all the hypotheses there is on the subject but it does not deter from the fact that if costs are relative a self sustained energy source will win out over one that has to be recharged every time...there is no argument...costs are the crux of the issue not necessarily just the technology.

You're skipping over his first paragraph:
100 years later the ICE power plant has evolved a lot but still dumps 80 gallons of gas by products into our living environment for every 100 gallons we put into the gas tank. This is in your face and up your nose local pollution that is starting to bother me in a physical way.
If you live out in the open country in Texas, air pollution likely isn't a concern. But the majority of Americans live close enough to roads and freeways to be affected by air pollution, and would benefit by improved air quality.

Have you seen the news about choking (literally) air pollution in New Delhi? One report said something like 90x the level considered harmful. Causes are illegal stubble burning, autos, and Diwali fireworks. (Diwali is similar to New Years or July 4 here). Personal experience of 'in your face and up your nose local pollution that is starting to bother me in a physical way': we came back from visiting Daughter during her semester abroad in new Delhi. At SF airport our luggage never came out and we were the last ones remaining to go through customs, then we were pulled aside and interrogated, extensively. I finally asked what was going on. The INS agent took my camera, swabbed it, and put the tissue in a sensor device. He said he got a reading for gunpowder so strong that I must have fired a weapon just before flying back. And my luggage had tested the same, it must contain a concealed weapon they couldn't find, so they were holding us until we confessed or something. He wasn't polite, he was taking the approach of being continually more harsh to get the the answers he needed.

That explained it. I told him we had experienced Diwali fireworks smoke so extreme we couldn't see the length of a block and our throats were sore. He never head of Diwali but at least that explanation made sense to him when we didn't have any other negative history or evidence. We were finally allowed to enter the country long after everyone else from that plane had departed the airport.

We had been miserable in that air pollution. I can't imagine a lifetime living like that. And Los Angeles was nearly that bad 40 years ago. I recall going down there frequently on business, and breathing all week was like the discomfort of too much bleach used for scrubbing the shower. At least for America's urban areas where most of the population is, anything that reduces pollution is worth it.
 
   / Battery based electric vehicles of today and tomorrow. #274  
That's an interesting story, California.

I read an article a while back about India making a big push towards EVs. That's in spite of the fact that a substantial portion of their electricity is generated from coal, and their electrical grid is horrible. That means there is significant power loss between the power plant and the end user.

These factors mean that their EVs are not saving the planet, but that's not their goal. They are just trying to ease the obviously unhealthy local pollution levels in their major cities.
 
   / Battery based electric vehicles of today and tomorrow. #275  
That's an interesting story, California.

I read an article a while back about India making a big push towards EVs. That's in spite of the fact that a substantial portion of their electricity is generated from coal, and their electrical grid is horrible.
These factors mean that their EVs are not saving the planet, but that's not their goal. They are just trying to ease the obviously unhealthy local pollution levels in their major cities.
Yes. India is chaotic, its not like China where government has control over things. The farmers burning rice stubble illegally is an example, it would be political suicide to go arrest them all. (kinda like arresting the employers of illegal aliens here). Their promotion of EV's is a reasonable measure, there.

One past measure that was a success: They use Vespa-like 3 wheelers for inexpensive taxis in the cities. 2 cycle engines were outlawed in about Y2k and conversion forced to LNG. They said that one measure made a huge improvement in urban air quality compared to the 16:1 oil burning Vespa-type engines.

Here are a couple of photos I took in 2004. Things have evolved since then. All I know is occasional articles in the news.

One pic from the top floor of our hotel mid afternoon as the sun disappeared into the smog. A few minutes later it got darker and my instincts felt it was sunset and soon to be night - but real sunset was hours later - as the air became more miserable to breathe. Just a normal day, this was before Diwali with its added gunsmoke.

Other photo is a rural roadside town. That level of smog is perpetual even out in the country, they live in it all their lives.

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Found another 2004 photo. Early morning smog heading out of New Delhi.
(Original topic of that photo: Mahindra builds those Jeeps).

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   / Battery based electric vehicles of today and tomorrow. #276  
I have yet to see any major wreck pictures of electric vehicles. Are the dynamics much different?
 
   / Battery based electric vehicles of today and tomorrow. #277  
I have yet to see any major wreck pictures of electric vehicles. Are the dynamics much different?

why would they be? Its not some kind of alien technology. the rest of the car has the same engineering considerations as any other, no matter the power train. only diffrence, is there is a disconect for the battery under the hood somewhere for rescue people if they need to cut the car apart to get you out.
 
   / Battery based electric vehicles of today and tomorrow.
  • Thread Starter
#278  
I have yet to see any major wreck pictures of electric vehicles. Are the dynamics much different?

That's a question I wondered about.

Our 2016 Nissan Leaf seems to be about to same size as the Versa that is gas. It is about 700 heavier than the Versa. That's about the weight of the battery mounted under the car. By the way the battery disconnect is under the hump of the rear seat foot area.

I have never had a car that handled as well as our Leaf. Being a heavier car for its 5 passenger size with 650 pounds under the car is a positive factor I expect. I hope to never test the safety features.

I drive in B mode instead of D so the car starts Regen braking before I touch the brakes. Light brake pressure forces Max Regen braking. More later.
 
   / Battery based electric vehicles of today and tomorrow. #279  
I don't even know where they put the batteries in most EVs. I just thought the mass might be distributed differently than a conventional vehicle.
 
   / Battery based electric vehicles of today and tomorrow. #280  
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