
Persanity wrote:The idea is to increase fuel efficiency of a existing vehicle by turning it into a parallel hybrid with no mechanical connection to the road. ..

Series hybrid:
A series- or serial-hybrid vehicle has also been referred to as an Extended Range Electric Vehicle or Range-Extended Electric Vehicle (EREV/REEV); however, range extension can be accomplished with either series or parallel hybrid layouts.
Series-hybrid vehicles are driven by the electric motor with no mechanical connection to the engine. Instead there is an engine tuned for running a generator when the battery pack energy supply isn't sufficient for demands.
This arrangement is not new, being common in diesel-electric locomotives and ships. Ferdinand Porsche used this setup in the early 20th century in racing cars, effectively inventing the series-hybrid arrangement. Porsche named the arrangement "System Mixt". A wheel hub motor arrangement, with a motor in each of the two front wheels was used, setting speed records.
This arrangement was sometimes referred to as an electric transmission, as the electric generator and driving motor replaced a mechanical transmission. The vehicle could not move unless the internal combustion engine was running.
The setup has never proved to be suitable for production cars, however it is currently being revisited by several manufacturers. In 1997 Toyota released the first series-hybrid bus sold in Japan.[28] Meanwhile, GM will introduce the Chevy Volt EREV in 2010, aiming for an all-electric range of 40 miles,[29] and a price tag of around $40,000.[30] Supercapacitors combined with a lithium ion battery bank have been used by AFS Trinity in a converted Saturn Vue SUV vehicle. Using supercapacitors they claim up to 150 mpg in a series-hybrid arrangement

Persanity wrote:![]()




Persanity wrote:Without batteries I'd say $8,000-$12,000 for a full conversion.
That isn't bad for a unlimited range extended electric vehicle....
Please don't think I am a ego maniac either. If you think I can't do something I say, Explain why you think I can't, Please.



TylerDurden wrote:Persanity wrote:Without batteries I'd say $8,000-$12,000 for a full conversion.
That isn't bad for a unlimited range extended electric vehicle....
Please don't think I am a ego maniac either. If you think I can't do something I say, Explain why you think I can't, Please.
I don't think the numbers add up:-I don't believe that the custom conversion can gain more than 15% average fuel economy.
-I don't believe a custom conversion with a secret-sauce can be done for less than $25K, even without batteries.
-I don't believe anyone will pay $25K for 15% better fuel economy on their current car.
If a gallon of fuel costs $6 and the typical guzzler gets ~15mpg, that's about $8K in fuel costs (20 thousand miles/yr). 15% of $8K = $1200.
That's about a 21yr break-even for the owner.


Persanity wrote:Fleet owners pay $100,000 for high end conversions on fleet trucks for 10% savings in fuel.
Oshkosh can get up to 50% better fuel economy with ProPulse equipped, in CERTAIN applications, over a non-hybrid version of same vehicle.
Thats why I am now focused on fleets of passenger vehicles. Much better opportunities for a start-up in that untapped market.



TylerDurden wrote:I don't think the numbers add up:-I don't believe that the custom conversion can gain more than 15% average fuel economy.
-I don't believe a custom conversion with a secret-sauce can be done for less than $25K, even without batteries.
-I don't believe anyone will pay $25K for 15% better fuel economy on their current car.
If a gallon of fuel costs $6 and the typical guzzler gets ~15mpg, that's about $8K in fuel costs (20 thousand miles/yr). 15% of $8K = $1200.
That's about a 21yr break-even for the owner.

Persanity wrote:Thats why I am now focused on fleets of passenger vehicles. Much better opportunities for a start-up in that untapped market.
bigmoose wrote:Persanity do you understand the imputed liability issues with the things you are proposing? If not, get a lawyer friend so that you do not waste your lifetime...
Persanity wrote:Don't worry, My company will still do custom and customer applications.

TylerDurden wrote:If a gallon of fuel costs $6...


The prototype will be some type of a chassis that in some way will adapt a S10 cab to a alternative under carriage design.
Probably a tubular roll cage like frame.



REdiculous wrote:It's not hard to monitor temperature and trigger something when an abnormal value is detected. I know there's an example in the Sensorlab Radio Shack book, but I'm sure you can find it online too.
I don't know if it makes sense to have everything in one package, but a good BMS should be able to monitor battery temp and trigger things based on some cutoffs....a cold battery could be warmed, a hot battery cooled, and a flaming battery...I dunno...get some marshmallows.


Persanity wrote: "As somebody not disciplined entirely in any one given area I have a unique view"

TylerDurden wrote:Persanity wrote:Without batteries I'd say $8,000-$12,000 for a full conversion.
That isn't bad for a unlimited range extended electric vehicle....
Please don't think I am a ego maniac either. If you think I can't do something I say, Explain why you think I can't, Please.
I don't think the numbers add up:-I don't believe that the custom conversion can gain more than 15% average fuel economy.
-I don't believe a custom conversion with a secret-sauce can be done for less than $25K, even without batteries.
-I don't believe anyone will pay $25K for 15% better fuel economy on their current car.
If a gallon of fuel costs $6 and the typical guzzler gets ~15mpg, that's about $8K in fuel costs (20 thousand miles/yr). 15% of $8K = $1200.
That's about a 21yr break-even for the owner.


I am sorry the vast majority of you that have responded here don't like my idea. "Your way" isn't the only way though.


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