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Old 12-14-2018, 04:22 PM   #81 (permalink)
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Yes, and the micro turbine is estimated to cost about $1,300, when mass production is reached. Don't know the MPG, but as a range extender, you'd average that in with your (mostly) EV driving the rest of the year.
One EV,
Vehicle mounted Gen Set,
(so no extra registration, and
no extra vehicle insurance.)
And, the micro turbine in the video is a 15 KW unit.

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Old 12-14-2018, 07:09 PM   #82 (permalink)
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Quote:
Originally Posted by Angel And The Wolf View Post
Yes, and the micro turbine is estimated to cost about $1,300, when mass production is reached. Don't know the MPG, but as a range extender, you'd average that in with your (mostly) EV driving the rest of the year.
One EV,
Vehicle mounted Gen Set,
(so no extra registration, and
no extra vehicle insurance.)
And, the micro turbine in the video is a 15 KW unit.
I finally get it. Thought the turbine was in the floor, and was wondering why they parked a car over it. It's a mirror showing the turbine installed in the car.

Turbines are very inefficient with respect to fuel economy, but have high power to weight.

I'd imagine a generator could return 35 MPG, but the real trick is figuring out how to drive the car and accept a charge at the same time.



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Old 12-14-2018, 09:06 PM   #83 (permalink)
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Saving money and gas turbines don't belong in the same context.
I have watched hours of yourube vids about the nissan leaf, it's charging systems, the battery, range extender batteries and I think a range extender generator may be wired in like a range extender pack. Bit no one has done it yet.
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Old 12-14-2018, 10:15 PM   #84 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
Saving money and gas turbines don't belong in the same context.
I was thinking the same thing. They still put piston engines in weight sensitive vehicles such as helicopters, so there's no reason to put a turbine engine in a car.

Reminds me of the Y2K motorcycle. The helicopter turbine engine returned 4 MPG city, 17 highway. Lenno said he accidentally melted a bumper from a nearby car while riding it.
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Old 12-15-2018, 12:31 AM   #85 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
Saving money and gas turbines don't belong in the same context.
I have watched hours of yourube vids about the nissan leaf, it's charging systems, the battery, range extender batteries and I think a range extender generator may be wired in like a range extender pack. Bit no one has done it yet.
Yes, people have wired generators to the bus coming out of the traction battery on a Nissan Leaf and have fed electricity there while driving the Leaf. So it can work. The “range–extended” EV (BEVx) considered - Page 9 - My Nissan Leaf Forum

The main thing is to not overcharge the traction battery.

To the OP. I've considered putting the front end of a 1985 VW Golf (Rabbit) diesel as a pusher trailer behind a Leaf (I actually owned both cars at the same time with a heavy desire to do it.) I gave up on the idea when I ended up driving a whole lot more than what it was worth. To me, if you are going to do a pusher trailer it's likely because you aren't planning to use the car for long trips very often. Maybe just once in a while. But at that rate you'd probably be just as far ahead if you rented a car or took public transportation of some sort for those once in a while trips, or took your time to plan out the trip in the EV.

I've done all of those. When I had the Leaf I did a 700 mile trip and a 400 mile trip in it, as well as several trips that were under 150 to 200 miles. There were places where I could only charge from a 120V outlet. But with careful planning, I made it work. Of course then came winter which shortened the range way too much and I ended up needing a tow once which ended that experiment.

So I also started renting from time to time. I would get the cheapest $20 a day deal and go for it. I made sure my credit card would pay for any damage or loss so I wouldn't have to buy the rentals "wavier" insurance.

I've also taken Greyhound and other buses on long trips. Not the most convenient, but it works. The bus makes since in that with food, wear and tear on the car and hotels it can come out cheaper in some circumstances. Also there is less time lost since I can actually do things that are more productive as a passenger than while driving. (Like typing here on EcoModder.com)

But with me having to drive more and more, I ended up just getting a Toyota hybrid and sold the Leaf. I wanted to make that pusher trailer so badly, but adding a 1985 diesel to a Leaf so I could drive it 300 miles more a week didn't seem like the best idea.

Man! I do miss the Leaf though! No oil changes, instant heat, and the ability to "fuel" at home!

One sad side note. When I dropped the second car and went to only one my insurance actually went up. Apparently it was less to insure a second car than what I got back in the multi-car discount. Now I'm paying $70 more per year! It kind of makes me want to go get the cheapest EV I can find, even if it has a 30 mile range left on it, and just drive that around town and use the ICE for my long commute.
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Old 12-15-2018, 02:57 AM   #86 (permalink)
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Why doesn't this come up on Google searches.

The only battery traction tie ins I have seen all involved adding more battery.
I saw no reason why it couldn't be generator power.
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Old 12-19-2018, 05:46 PM   #87 (permalink)
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Hello all,

The i3 REX purportedly gets about 35+mpg on gasoline after the initial battery charge drops below the threshold, and can maintain 70mph on average interstates without dropping below the "reduced power mode" threshold, in "comfort" mode. Here's an example of a winter trip at 15F: The Electric BMW i3: 462 Mile REx Road Trip: New Jersey to Vermont

Here's a nice FAQ about the i3 REX: https://www.plugincars.com/8-key-que...ar-129816.html

Maybe something like the REX is more of a "battery degradation anxiety/change in driving needs abatement device". As the vehicle/battery ages, the SOC drops faster per mile, and the REX kicks on sooner. If you get a new job that is 100 miles away, you use more gas per day. In either case, you eventually add up the costs and either shorten the distance between home and job, trade the vehicle in for one that meets your needs better, or (if age is the issue) replace the battery pack with a newer, probably better tech/range one.

Only has a 1.9 gallon tank, so expect to fill up every ~60 miles after the REX kicks on. That's not exactly ideal if you are going on a 400+ mile road trip, but at least you'll be getting up and stretching your legs regularly.

One other thing to think of: If you rent, you will always have a car that is less than 3 years old, and thus has the latest emissions tech. Any DIY system will probably out-pollute such a scheme by quite a bit, unless you get a used REX and figure out how to use that.

Hmm. Quick search on Carfax finds a 2014 i3 with REX 145 miles from me for $15614, with only 14,176 miles on it. Going for unlimited distance, I can save about $1000, but mileage goes up to the 25-50k range. So it seems some people are using the REX, and others really aren't. A 2013 Leaf with ~25-45k miles on it is about half that price, or I can get a 2015 Leaf with ~25-30k miles on it for about the same price. The numbers suggest I should check with my insurance company and bank to see if it would be cheaper for me to drive a Leaf most of the time and have a rarely-used second vehicle for longer drives - even including car payments and installing a 240V outlet and charger. If I could buy a used electric or PHEV Jeep Wrangler for similar prices to used Leafs or i3 REX I'd get it. PHEV Wrangler is slated for 2020, but that'll be $40-50k most likely, and a decade+ to drop under $10k used - way too much money for what I'll mostly just commute in. Need to do the math on a PHEV Chrysler Pacifica vs. a mid-range optioned plain one, planning on keeping for 10+ years - wife's 2007 Mazda 5 is getting to the "nearly the worth of the vehicle in repairs" point, is louder, is rusting, etc.
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Old 12-20-2018, 02:43 PM   #88 (permalink)
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Quote:
Originally Posted by oil pan 4 View Post
Why doesn't this come up on Google searches.

The only battery traction tie ins I have seen all involved adding more battery.
I saw no reason why it couldn't be generator power.
Because it hasn't been done by many people. But logic would tell us that electricity is electricity. Just as long as you have a workable voltage and amperage the car isn't going to know the difference if the electricity is coming from an extender battery or an extender generator or a solar trailer or an etc. etc. etc...
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Old 01-07-2019, 04:11 PM   #89 (permalink)
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Subscribed for interest, but I must say I did a 1,200 mile trip alone in 36 hours with no real problems. Only issue was my express deals hotel was 37 miles out of the way (each way) which stretched my distance between charges to 275 miles in 9 degrees with snow falling. Car did it, but I spent a lot of time around 60 mph.
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Old 01-07-2019, 10:23 PM   #90 (permalink)
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Looking just yesterday Spark EV's are way cheaper than I thought, found a 2015 42k for under $9,000 327 ft lbs of torque sound more fun than a Leaf.

2016 16,000 miles for $11000. In 2015 they changed the battery and reduced the torque to the 327. 2014 and older 402 I think.
GM changed the gear ratio when they changed to motor torque rating. The torque at the wheels is the same. I have a 2016 Spark EV and even with performance all-season tires acceleration is traction limited. It will spin the tires to 40 mph and has wicked torque steer.

My lease is up in September and the purchase price is $11,000. Unless they drop that to about $7500 I'll just turn it back in.

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Money? Not to mention that (in the US at least) it's pretty much impossible to rent a car that I'd want to drive :-(
I guess it depends what you want to drive. This past 2 years I have rented: Camaro V6 Coupe, Camaro V6 convertible, Mustang V6 Coupe, Mustang V6 convertible, Camaro SS, BMW 435 convertible, Nissan Altima, Nissan Maxima, Honda Accord, Cadillac XTS, Cadillac XT5, Ford Explorer, Chevy Impala, Toyota Camry, Chrysler Pacifica, and a Dodge Grand Caravan. My favorite is the BMW.

For bikes: Harley Softtail Heritage Classic, Harley Road King, Harley Electra Glide, Triumph Tiger 800, Indian Chieftain, Indian Scout, and a BMW R1200GS. The bikes were $40 to $50 a day.


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