[ausev] Diesel hybrid

John Penry at Texrocks jpenry at texrocks.com
Tue May 27 02:38:31 GMT 2008


I hear you.
I asked the guy I was discussing it if the old VW bug engines were 
discontinued because of their emissions, and he seemed to be forgetful at 
that point of the conversation.

A veggie oil burning diesel would be great. A Stirling would be better.

John

----- Original Message ----- 
From: <evehicle4me at hischopsticks.org>
To: <ausev at austinev.org>
Sent: Monday, May 26, 2008 7:32 PM
Subject: Re: [ausev] Diesel hybrid


> Another thought...the older style (I assume you mean air cooled) VW
> engines were not terribly efficient and were/are very dirty engines in
> terms of the smog created.  It is easier to control the temp of a
> water cooled engine which is why they tend to be much cleaner burning.
>  While the old vdub engines are relatively cheap, easy to work on and
> find parts for I would like to consider the environmental aspect as
> well - especially the desire to use some kind of renewable energy
> source like veggie oil.  Water cooled engines are easier to use to
> heat the cabin of a car as well.
>
>
> Quoting John Penry at Texrocks <jpenry at texrocks.com>:
>
>> A couple of calculators.
>> http://www.evconvert.com/tools/evcalc/
>> http://www.geocities.com/CapeCanaveral/lab/8679/evcalc.html
>>
>> The Series Hybrid idea is something I have been pondering as well.
>> I talked yesterday with a VW Bug specialist, and the older style VW 
>> engines
>> were about 37 HP, which I think could also be used to power a genset.
>> There was also some study done on motors and generators for use in a 
>> trailer
>> to tow behind one of the RAV-4 all electrics as a "range extender".  I 
>> also
>> feel that the motor and generator would take about the same room as a 
>> half
>> dozen batteries, and get the vehicle somewhere in the 60, 70, 80 and 
>> beyond
>> mpg range.
>>
>> John in Seguin
>> http://www.transtexastrucks.com
>> I decided to challenge the Automakers.
>> I will make a Plug in Series Hybrid Crew-Cab Pickup before Detroit does.
>> But if I lose this race, we all become winners.
>>
>> ----- Original Message -----
>> From: <evehicle4me at hischopsticks.org>
>> To: <ausev at austinev.org>
>> Sent: Monday, May 26, 2008 10:18 AM
>> Subject: [ausev] Diesel hybrid
>>
>>
>>> I have an idea that is by no means new.  I would like to buy a Dodge
>>> Caravan and install 2 electric motors in it, one on each of the front
>>> wheels - it is a front wheel drive.  (Alternatively I could dig up an
>>> awd van and put one motor on each wheel.  Even more preferable, if the
>>> fuel mileage numbers panned out I would love to find a full size van.)
>>>  I would like to put both batteries and a diesel powered generator in
>>> the van.  I would like the diesel motor to be purely for generating
>>> electricity, never to mechanically power the wheels.  My reason for
>>> doing this is to reduce the number of batteries (and thus cost and
>>> weight) needed to keep the van going and to extend the range.  I also
>>> want to use veggie oil for the diesel.  I would like to be able to
>>> drive the van indefinitely, i.e. not have a fixed range of 100 or 200
>>> miles as electric vehicles do.
>>>
>>> I have a couple of questions.  Please feel free to refer me to other
>>> posts, url's or forums that can answer my questions.  I am sure they
>>> have been asked before but I have not yet figured out how to search
>>> very well on this topic.
>>>
>>> How much can I expect to pay for a 25 hp electric motor?  I have seen
>>> new motors for more than $10,000 each.  Is it possible to find a pair
>>> of motors this size for $2,000 each (used)?  Wishful thinking :(  How
>>> much will each weigh?  The 4 cyl caravans only had 80 hp so I am
>>> thinking a pair of 25 hp electric will be  more than enough.
>>>
>>> Electric motors seem to become proportionately more expensive as they
>>> get bigger, i.e. it is cheaper to buy 2  xx volt motors than to buy 1
>>> 2xx volt motors.  Is this true?
>>>
>>> Does someone have some kind of simulation software or spreadhsheet
>>> that I can use to model how many batteries I would need, how big a
>>> generator, etc?  This aspect of the planning has the most question
>>> marks and gives me the most opportunities to either sink or swim.
>>>
>>> I have read that electric motors are significantly more efficient if
>>> kept running at a lower temperature, i.e. -20 F or lower.  Is this
>>> possible to do this for an electric motor used for a car?
>>>
>>> I have seen some controllers for Chinese electric motors that adjust
>>> the speed of motors for turning radius.  Is this necessary?
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> AusEV mailing list
>>> AusEV at austinev.org
>>> http://www.austinev.org/mailman/listinfo/ausev
>>>
>>>
>>
>>
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