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  #11 (permalink)  
Old 06-07-2008, 07:46 PM
Active Enthusiast
 
Posts: 162
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by kenny View Post
The Aptera hybrid is different not like either.
It’s electric motor alone powers turns the wheel - yes there's only one wheel in the back.
The gas engine uses gas to charge the batteries which in turn power the electric motor.
I believe the gas engine does not directly propel or assist in the propulsion of the car.
This is similar to the way the Volt is going to work. I think the term is "pure series hybrid". Some locomotives use the same technology if I'm not mistaken.

It is a cool idea because there is no need of a mechanical drive train to the ICE. Saves on parts, weight and cost.

Series hybrid:

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  #12 (permalink)  
Old 06-08-2008, 12:17 AM
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Hybrids: 2006 Honda Civic Hybrid
Posts: 1,108
Default Re: I loved my hybrid but I'll sell it

Thanks Big Tuna

I must clarify something - or try.

The Aptera hybrid is not really a 300 MPG vehicle.
Rating its mileage is complicated because it is has two sources of energy:

1. Gas
2. Your wall outlet

The Hybrids we see on the road now are gas-only hybrids.
They never plug into the wall so all electrical energy originally came from gas - so the term MPG makes sense.

The Aptera hybrid system is not like Toyota's or Honda's.
It is a third type called a Series Hybrid, like Big Tuna explained.
The gas engine never propels or even assists in the propulsion of the car.
Only the electric motor turns the wheel, even at top speed.
The gas engine only charges the battery, which in turn powers the electric motor.
This means fewer parts for lower cost and weight and higher reliability.

Now here's the messy part that the media is going to garble up.
As the battery charge goes down the ratio of energy coming from gas vs. the wall outlet gradually changes.
The gas just extends the length of the charge that you originally got from the wall outlet.

Aptera says when batteries are fully charged it “is getting” about 300 MPG.
When charge is low it “is getting” as bad as 130 MPG.
But Hold It!
You can't really say that.
It is always being powered by a combination of energy from the gas and the wall outlet.

At any instant you might be able to calculate the MPG and the Miles Per Watt, but nobody can say what MPG it gets overall.
Even the MPG term is misleading and incomplete for this vehicle.
After a tank/charge you must report MPG and Miles Per Watt.

Still, it's not like they are ripping you off saying it gets 300 MPG.
Cost-wise it may work out to even lower cost than 300 MPG for gas alone.
Their electric-only model goes about a mile on one penny of electricity.
So the cost contribution of the energy you use from your AC outlet is very low.

.

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.
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  #13 (permalink)  
Old 06-08-2008, 01:02 AM
spinner's Avatar
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Location: Toronto, Ontario, Canada
Hybrids: 2007 HCH-II
Posts: 422
Default Re: I loved my hybrid but I'll sell it

Here's a visual reference from Honda, differentiating parallel, combined, and series hybrids:
http://world.honda.com/automobile-technology/IMA/ima02/
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  #14 (permalink)  
Old 06-08-2008, 08:42 AM
HypoFueler
 
Location: Ohio
Hybrids: 2007 HCHII
Posts: 403
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by spinner View Post
That is a patronizing remark. We'd all like to see these incredible results happen. kenny is causing hype well before the fact:
  • It's not in production
  • Actual results may vary
  • Restricted to California, just like the EVs before it
  • Lots of people get fleeced on the promise of green vehicles
I don't have to pay attention to critics of the hybrid, because I know for a fact that it works, it has been owner-tested for the last 8 years, it is here and it is now.
Id like to think of it as a patriotic versus patronizing remark.

Aptera, Kenny and others are putting up $$ to drastically reduce the use of petroleum for driving in California - thats good. I hope they are both sucessfull and that Aptera type technologies can grow to all the other states as well.

I hope that Kenny and other early adopters dont pay attention to critics of the Aptera but are vocal supporters now and when they can share just how well the vehicle is performing.

I do know that sheep get fleeced.

.

Hybrid Cars Mileage
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  #15 (permalink)  
Old 06-09-2008, 07:55 AM
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Posts: 24
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by kenny View Post
True, it is not really a pure 300 MPG or 230 MPG vehicle.
You do apparently get it basically. The Aptera still looks like a cool vehicle.

Quote:
Originally Posted by kenny View Post
It's complicated and the sound-bite media is going to be pissed when they cannot explain it in 2 sentences.
It's not that complicated. The media prefers sensation over information. They also are lazy and not skeptical enough. It doesn't take a lot of understanding to be skeptical of the "230 mpg" claim and do a bit of digging on the website. Aptera, itself, could make this information more transparent but it would mean that they would lose publicity (ie, free advertizing). (Yes, I think it's deliberate.)

Quote:
Originally Posted by kenny View Post
The Aptera hybrid is different, and not like either.
It’s electric motor alone turns the wheel - yes THE wheel, there's only one wheel in the back.
The gas engine uses gas to charge the batteries which in turn power the electric motor.
I believe the gas engine does not directly propel or assist in the propulsion of the car.
What you are describing is a "plug-in hybrid". It's also a "serial hybrid" (The Prius is a parallel hybrid.) It appears that, for about $10,000, the Prius can be turned-into a plug-in (it looks like, even with being a parallel hybrid, the Prius is well-suited to be a plug-in). (The Aptera will obviously be more efficient.)
The Chevy Volt is also a plug-in serial hybrid.
Plug-in hybrids solve the severe limitations, terrible range and long "fill up" times of electric-only vehicles, which make electic vehicles not very practical.

Quote:
Originally Posted by kenny View Post
So when batteries are fully powered it “gets” about 300 MPG.
It "gets" 300 mpg the same way a Suburban on a flat-bed truck "gets" infinite mpg! The "300 mpg" is a completely fake and meaningless figure!

Quote:
Originally Posted by kenny View Post
But Yes, the energy it got from the battery charge from the wall must be taken into account - IOW those 300 and 130 figures are not fair.
For discussions of efficiency, that energy must be taken into account. In a discussion of efficiency, the 300 is fake (ie, it's a lie) and the 130 is accurate (ie, it's fair).

Quote:
Originally Posted by kenny View Post
Running on electric power is Way Way Way cheaper than gas.
Efficiency is one discussion. Cost is another. I was only talking about efficiency. The Aptera is not a "230 mpg" car. It's dishonest to say that it is. Understanding that it is really a 130 mpg car indicates that it is "only" 2 times as efficient as your HCH.

Quote:
Originally Posted by kenny View Post
BUT STILL, we should be delighted, because the electric-only model goes about a mile on a penny of electricity.
No disagreement with that (as long as we are basing it on facts). The Aptera looks pretty cool and the hybrid version is much more practical than an electic-only vehicle.

Quote:
Originally Posted by kenny View Post
Rating its mileage is complicated because it is has two sources of energy
Actually, it's simple. If you never plug it in, it is only using one source of energy. If you never plug it in, it gets 130 mpg.

If you are comparing the efficiency of the Aptera to a non-plug in, you use the 130 mpg number.

Quote:
Originally Posted by kenny View Post
Still, it's not like they are ripping you off saying it gets 300 MPG.
They are not "ripping you off" but the "300 mpg" number is a lie. Energy-wise, the car is not 4-times as efficient as your HCH. It's only 2 times as efficient.

Quote:
Originally Posted by kenny View Post
Cost-wise it may work out to even lower cost than 300 MPG for gas alone.
There are certainly big advantages to being able to plug it in.

Quote:
Originally Posted by spartybrutus View Post
Aptera, Kenny and others are putting up $$ to drastically reduce the use of petroleum for driving in California - thats good. I hope they are both sucessfull and that Aptera type technologies can grow to all the other states as well.
I agree!

Last edited by njkayaker; 06-09-2008 at 08:16 AM.
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  #16 (permalink)  
Old 06-09-2008, 09:40 AM
FastMover's Avatar
Old Boomer Techie
 
Real Name: BobB
Location: Pacific Northwest (WA)
Hybrids: '07 TCH (Titanium)
Posts: 531
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by spinner View Post
That is a patronizing remark. We'd all like to see these incredible results happen. kenny is causing hype well before the fact:
  • It's not in production
  • Actual results may vary
  • Restricted to California, just like the EVs before it
  • Lots of people get fleeced on the promise of green vehicles
I don't have to pay attention to critics of the hybrid, because I know for a fact that it works, it has been owner-tested for the last 8 years, it is here and it is now.
... and a lot could happen before it actually reaches production volumes in the hands of the customers. For example, consider the impact of a Toyota PHEV based on the concept car that was shown in Chicago this year, clearly somehing way beyond a design exercise.

http://www.autobloggreen.com/2008/02...he-toyota-1-x/

This 925 pound car is a lot lighter than the Gen II Prius, and not not so small for an electric. With only a 500cc engine and Li-Ion batteries it should be quite capable of 90 MPG+ at typical communte ranges. The chassis is mostly composite like the Aptera, but the price and coolness factor will be way down -- and probably more acceptable to J.Q . Public, family man.

Radical designs like the Aptera usually take a while to catch on except for a few early inovators (probably including me, in this case).

.


It is the ignorant among us that will eventually destroy us all.

Last edited by FastMover; 06-09-2008 at 09:44 AM.
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  #17 (permalink)  
Old 06-09-2008, 12:44 PM
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Posts: 162
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by njkayaker View Post

What you are describing is a "plug-in hybrid". It's also a "serial hybrid" (The Prius is a parallel hybrid.) It appears that, for about $10,000, the Prius can be turned-into a plug-in (it looks like, even with being a parallel hybrid, the Prius is well-suited to be a plug-in).
Not to be overly picky but it is generally accepted that the Prius is a "combination" or "series/parallel" hybrid.

From Wiki:

Quote:
The Prius is a combined hybrid (sometimes referred to as series-parallel), a vehicle that can be propelled by gasoline (petrol) and/or electric power. Components of the system include:
Quote:
Originally Posted by njkayaker View Post
Plug-in hybrids solve the severe limitations, terrible range and long "fill up" times of electric-only vehicles, which make electic vehicles not very practical.
The way I view an EV is that it would be recharged over night (like a cell phone) and used only for short range trips (like back and forth to work) so an EV would never require a fill up away from home.

Firefox includes a built in real time spell check BTW. It is a nice feature that makes spelling errors less likely. My spelling is horrible so I love that feature.

http://www.mozilla.com/en-US/firefox/
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  #18 (permalink)  
Old 06-09-2008, 01:03 PM
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Posts: 24
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by BigTuna View Post
Not to be overly picky but it is generally accepted that the Prius is a "combination" or "series/parallel" hybrid
That makes sense (it's not picky). (That isn't important to the points I'm making.) It looks like the Prius is "plug-in ready", unlike (as far as I can tell) the HCH.

Quote:
Originally Posted by BigTuna View Post
The way I view an EV is that it would be recharged over night (like a cell phone) and used only for short range trips (like back and forth to work) so an EV would never require a fill up away from home.
This limits EVs to being a second car (they might work as the second car in a two car family) or for people who never use their cars for longer trips. This means that the market for EVs will be small (for a fair number of years) since it would be hard to find an economic justification for the extra $20,000 cost of the second car to save a little bit on fuel costs (about $50/month).

Given the tiny range of an EV (about 40 miles), the range probably has to be about twice the round-trip mileage of the commute to make running out of juice unlikely. The current limited range of EVs is like always driving with no more than 1-2 gallons of gas.

You never forget to plug your cell phone in?

For a bit of extra cost, a plug-in hybrid can work for most people as their only car and has pretty-much all of the advantages of an EV and none of the downsides.

Quote:
Originally Posted by BigTuna View Post
Firefox includes a built in real time spell check BTW. It is a nice feature that makes spelling errors less likely. My spelling is horrible so I love that feature.
(Complaining about spelling is a bit lame. I'd have less problem spelling if I didn't have spinal cord damage.)

Last edited by njkayaker; 06-09-2008 at 01:07 PM.
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  #19 (permalink)  
Old 06-09-2008, 01:11 PM
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Hybrids: 2006 Honda Civic Hybrid
Posts: 1,108
Default Re: I loved my hybrid but I'll sell it

Aptera is saying their EV will have a range of about 120 miles.
I think that is enough to accommodate most people's daily driving.

They say their hybrid's range will be about 300 miles.

.

Need fewer troops to support.
Drive a hybrid.
Best tank 71.65 MPG.

Before this car I spent two years learning hypermiling on my 2004 HCH1.
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  #20 (permalink)  
Old 06-09-2008, 01:23 PM
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Posts: 24
Default Re: I loved my hybrid but I'll sell it

Quote:
Originally Posted by kenny View Post
Aptera is saying their EV will have a range of about 120 miles.
I think that is enough to accommodate most people's daily driving.
That range is very good for an EV.

Anyway, it's not really the daily driving that is the problem. If you do any weekend trips with any sort of frequency, even that range is not enough. That means, the EV Aptera is limited to being a second car for an extra $20,000. (While one could rent for longer trips, doing so once a month or so would eliminate any savings you'd have. Plus, it would be inconvenient to rent so often.)

Many more people could deal with the $30,000 hybrid Aptera as their only car.

The hybrid range is "only" OK but, since it takes only a few minutes to fill-up, it isn't really much of a limitation.

Last edited by njkayaker; 06-09-2008 at 01:27 PM.
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