Home » Public Forums » GMCnet » Re: [GMCnet] Electric motor converision
| Re: [GMCnet] Electric motor converision [message #328580] |
Thu, 25 January 2018 12:18  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Has been discussed in the past, Cost/benefit ratio is way below zero. You cannot put enough batteries on the chassis to get it down the road very far. Weight is the killer and solar cells would be no where close to the amount to provide adequate recharge capabilities.
J.R. Wright
GMC GreatLakerTech Editor
78 Buskirk 30' Stretch
75 Avion Under Reconstruction
Michigan
> On Jan 25, 2018, at 11:10 AM, Gailen Vick wrote:
>
> Any discussions about converting a GMC motorhome to an electric drive?
> Possibly pulling out the 455 motor and the transmission and replacing them
> with an electric motor, tons of batteries on the bottom of the coach and
> solor panels on the roof.
>
> Best regards,
> Gailen Vick
> www.minivacationweekend.com
> _______________________________________________
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| Re: [GMCnet] Electric motor converision [message #328587 is a reply to message #328580] |
Thu, 25 January 2018 13:11  |
Ethan James
Messages: 32
Registered: October 2016
Location: Roanoke, VA
Karma: 1
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Yes, not worth the money. Some guy posted pictures of his Telsa Model X
towing a 17ft travel trailer. It's range went from 250 miles to 100
miles. He said the model x was $150k.
--
Ethan James
Roanoke, VA
76 Glenbrook "Rosie"
On Thu, Jan 25, 2018 at 1:19 PM John Wright wrote:
> Has been discussed in the past, Cost/benefit ratio is way below zero.
> You cannot put enough batteries on the chassis to get it down the road very
> far. Weight is the killer and solar cells would be no where close to the
> amount to provide adequate recharge capabilities.
>
> J.R. Wright
> GMC GreatLakerTech Editor
> 78 Buskirk 30' Stretch
> 75 Avion Under Reconstruction
> Michigan
>> On Jan 25, 2018, at 11:10 AM, Gailen Vick wrote:
>>
>> Any discussions about converting a GMC motorhome to an electric drive?
>> Possibly pulling out the 455 motor and the transmission and replacing
> them
>> with an electric motor, tons of batteries on the bottom of the coach and
>> solor panels on the roof.
>>
>> Best regards,
>> Gailen Vick
>> www.minivacationweekend.com
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
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| Re: [GMCnet] Electric motor converision [message #328597 is a reply to message #328596] |
Thu, 25 January 2018 16:26 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
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that price is for the whole semi
If you buy the semi, might as well use it!
To build your own I'd get motors, batteries and controller and retrofit it into the GMC
Put the batteries under the floor, theres a ton of space there especially without the gas tanks and the exhaust
Probably for $50,000 or so you'd have the parts ha ha ha ha
________________________________
From: Gmclist on behalf of Michael
Sent: Thursday, January 25, 2018 3:37:39 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Electric motor converision
$150,000 for the model with a range of 300 miles
$180,000 for the model with a range of 500 miles
NextGenGMC wrote on Thu, 25 January 2018 16:08
> I want to rip the system out of one of these when they come out and put it into a GMC :)
>
> https://www.tesla.com/semi
>
> I bet you that would work as far as range and battery capacity concerned. Cost... I'm sure its going to be a lot.
--
1973 GMC 26' Glacier - Unknown Mileage - Has a new switch pitch transmission with Powerdrive
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Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Electric motor converision [message #328598 is a reply to message #328597] |
Thu, 25 January 2018 16:30 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Just make the GMC into a 5th wheel, and Bob's your Uncle. No tornado front
hubs to worry about, and regenerative braking, too.
Jim Hupy
On Jan 25, 2018 2:27 PM, "Keith V" wrote:
> that price is for the whole semi
>
> If you buy the semi, might as well use it!
>
>
> To build your own I'd get motors, batteries and controller and retrofit it
> into the GMC
>
> Put the batteries under the floor, theres a ton of space there especially
> without the gas tanks and the exhaust
>
>
> Probably for $50,000 or so you'd have the parts ha ha ha ha
>
> ________________________________
> From: Gmclist on behalf of Michael lilmyk@gmail.com>
> Sent: Thursday, January 25, 2018 3:37:39 PM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Electric motor converision
>
> $150,000 for the model with a range of 300 miles
> $180,000 for the model with a range of 500 miles
>
> NextGenGMC wrote on Thu, 25 January 2018 16:08
>> I want to rip the system out of one of these when they come out and put
> it into a GMC :)
>>
>> https://www.tesla.com/semi
>>
>> I bet you that would work as far as range and battery capacity
> concerned. Cost... I'm sure its going to be a lot.
>
>
> --
> 1973 GMC 26' Glacier - Unknown Mileage - Has a new switch pitch
> transmission with Powerdrive
>
> _______________________________________________
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| Re: [GMCnet] Electric motor converision [message #328603 is a reply to message #328580] |
Thu, 25 January 2018 19:08 |
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SeanKidd
Messages: 747
Registered: June 2012
Location: Northern Neck Virginia
Karma: 4
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I spoke to a Protean engineer a year or two ago, he claims it would be possible to drive the rear wheels with hub driven motors using a torque sensing controller to supplement the 455, since then, I'm involved with an electric bus project with proterra, a 660kwh battery, they just broke a record driving a 40 foot bus over 1100 miles on a single charge...https://www.proterra.com/press-release/proterra-catalyst-e2-max-sets-world-record-and-drives-1101-2-miles-on-a-single-charge/
Many transit agencies are flocking to this technology, the trickle down effect should be commercially feasible in next several years...batteries are still the limiting factor...infrastructure includes a charging capacity to 125kW @ 480V...dc chargers..4-6 hour to charge 440kwh, which is the standard transit bus configuration. Buses cost about $800k new
Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers
[Updated on: Thu, 25 January 2018 19:25] Report message to a moderator |
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| Re: [GMCnet] Electric motor converision [message #328630 is a reply to message #328626] |
Fri, 26 January 2018 11:45 |
NextGenGMC
Messages: 146
Registered: December 2017
Location: Washington State
Karma: -1
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Matt Colie wrote on Fri, 26 January 2018 09:35NextGenGMC wrote on Fri, 26 January 2018 12:22That is exactly what I was thinking. Use their motors (rated for heavy duty truck) and the control system. Batteries under the floor in place of the fuel tanks. If one was to keep a small fuel tank for Onan, you got yourself an extended range "hybrid" 
If you are going to go to all that trouble, why not just put an electric drive on the Onan? 
Not following you on this one. Drive Onan generator with the electric drive? Then we can plug it back onto itself and get the generator that will charge itself while running Perpetual motion machine?
Anyhow, this is just dreaming. If I had crazy millionaire money then it would be more than just dreaming. I'm just glad that the technology is being developed on multiple fronts out there. I'm super happy that there is a network of support for rebuilding the old engines and the transmission on these coaches. However, without new units being manufactured, we all know that the day may come when you may not be able to get a replacement for the one that just broke. Hopefully long before that, there will be other more or less affordable options to upgrade/change the drive system.
Vadim Jitkov
'76 Glenbrook 26'
Pullman, WA
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| Re: [GMCnet] Electric motor converision [message #328632 is a reply to message #328630] |
Fri, 26 January 2018 13:11 |
Will Albers
Messages: 183
Registered: November 2017
Location: Detroit MI (Belleville)
Karma: 2
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As seen here
http://real4x4forums.com/PinzgauerBBS/viewtopic.php?f=18&t=10708
-EV West creates custom Electric upfittings. Their building a Pinzgauer
which will be interesting! XL Hybrids is an upfitter for Ford who EV
enables our commercial vehicles. Its all possible, but I agree that the
hybrid is more attractive than pure EV for RV purposes.
On Fri, Jan 26, 2018 at 12:45 PM, Vadim Jitkov
wrote:
> Matt Colie wrote on Fri, 26 January 2018 09:35
>> NextGenGMC wrote on Fri, 26 January 2018 12:22
>>> That is exactly what I was thinking. Use their motors (rated for
> heavy duty truck) and the control system. Batteries under the floor in
>>> place of the fuel tanks. If one was to keep a small fuel tank for
> Onan, you got yourself an extended range "hybrid" :)
>>
>> If you are going to go to all that trouble, why not just put an electric
> drive on the Onan? ;)
>
>
> Not following you on this one. Drive Onan generator with the electric
> drive? Then we can plug it back onto itself and get the generator that will
> charge itself while running :) Perpetual motion machine?
> Anyhow, this is just dreaming. If I had crazy millionaire money then it
> would be more than just dreaming. I'm just glad that the technology is
> being
> developed on multiple fronts out there. I'm super happy that there is a
> network of support for rebuilding the old engines and the transmission on
> these coaches. However, without new units being manufactured, we all know
> that the day may come when you may not be able to get a replacement for the
> one that just broke. Hopefully long before that, there will be other more
> or less affordable options to upgrade/change the drive system.
> --
> Vadim Jitkov
> '76 Glenbrook 26'
> Pullman, WA
>
> _______________________________________________
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1978 Palm Beach.
Detroit Michigan
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| Re: [GMCnet] Electric motor converision [message #328635 is a reply to message #328580] |
Fri, 26 January 2018 16:13 |
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RF_Burns
Messages: 2276
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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So just looking at the Proterra specs for their smallest unit - 35ft. It can go 55-72miles on 94-126Kwh of energy.
So we'll say that's 63 miles on 110kwh of energy, so that's about an hour's driving. So you would need a generator capable of at least 110kw continuous to keep up with the energy demand if you like hybrid. That's equivalent to 20 Onan's putting out near full rated power.
One HP = 746 watts, so 110kw/ 746 watts = 147hp is the electrical equivalent steady for an hour for their electrical consumption.
A 100AmpHr 12V battery = 1.2kw so you would need about 100 batteries to drive an hour at this rate, but actually more. Lead acid should not be taken below 50% charge and li-ion below 80%. so even Li-Ion will need about 125 batteries. At about 40lbs each that's 2.5 tons to add. 100Amphr batteries are going for ~$750 each so that's about $94,000 in batteries, plus chargers and battery monitor systems.
My sister recently bought a VW Golf EV. She took a pic of her power consumption to send me. It was 27.2Kwh/100km, so thats 27.2kwh for 63 miles or about 1/4 of what this bus does. Her diesel VW likely got her 45mpg vs a bus at likely 5-6mpg, so I don't think she is doing very good with it.
EV get better city than hyway because they regenerate to charge the batteries while braking with little wind resistance. We do mostly highway with little braking and high wind resistance, so its mostly just a continuous load.
I'd say their record miles on a charge was likely at slow speed, no more than 25 mph where the wind resistance is still low and only against rolling resistance.
Just my farmboy mechanic, 45yrs in electronic technology way of seeing it.
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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| Re: [GMCnet] Electric motor converision [message #328637 is a reply to message #328635] |
Fri, 26 January 2018 18:52 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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We had a Europian manufacture of motors visit us to see if we could install
them on each wheel.
We realized that were limited to the diameter of the rear wheels so they
went back without going futher.
Eventually they will come up with a more compact unit that can be adapted
and we might have a coach that can run on battery , Like Jim H says, the
amount of batteries will be challenging should one want to try..
On Fri, Jan 26, 2018 at 2:13 PM, Bruce Hislop wrote:
> So just looking at the Proterra specs for their smallest unit - 35ft. It
> can go 55-72miles on 94-126Kwh of energy.
>
> So we'll say that's 63 miles on 110kwh of energy, so that's about an
> hour's driving. So you would need a generator capable of at least 110kw
> continuous to keep up with the energy demand if you like hybrid. That's
> equivalent to 20 Onan's putting out near full rated power.
>
> One HP = 746 watts, so 110kw/ 746 watts = 147hp is the electrical
> equivalent steady for an hour for their electrical consumption.
>
> A 100AmpHr 12V battery = 1.2kw so you would need about 100 batteries to
> drive an hour at this rate, but actually more. Lead acid should not be
> taken
> below 50% charge and li-ion below 80%. so even Li-Ion will need about 125
> batteries. At about 40lbs each that's 2.5 tons to add. 100Amphr batteries
> are going for ~$750 each so that's about $94,000 in batteries, plus
> chargers and battery monitor systems.
>
> My sister recently bought a VW Golf EV. She took a pic of her power
> consumption to send me. It was 27.2Kwh/100km, so thats 27.2kwh for 63 miles
> or
> about 1/4 of what this bus does. Her diesel VW likely got her 45mpg vs a
> bus at likely 5-6mpg, so I don't think she is doing very good with it.
>
> EV get better city than hyway because they regenerate to charge the
> batteries while braking with little wind resistance. We do mostly highway
> with
> little braking and high wind resistance, so its mostly just a continuous
> load.
>
> I'd say their record miles on a charge was likely at slow speed, no more
> than 25 mph where the wind resistance is still low and only against rolling
> resistance.
>
> Just my farmboy mechanic, 45yrs in electronic technology way of seeing it.
>
>
> --
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
> Hubler 1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Electric motor converision [message #328638 is a reply to message #328637] |
Fri, 26 January 2018 19:00 |
richshoop
Messages: 190
Registered: April 2017
Karma: 0
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Senior Member |
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Jim, I would like to talk to those motor mfrs you mentioned. Could you either forward the request to them or send me their contact information?
> On January 26, 2018 at 4:52 PM Jim Kanomata wrote:
>
>
> We had a Europian manufacture of motors visit us to see if we could install
> them on each wheel.
> We realized that were limited to the diameter of the rear wheels so they
> went back without going futher.
> Eventually they will come up with a more compact unit that can be adapted
> and we might have a coach that can run on battery , Like Jim H says, the
> amount of batteries will be challenging should one want to try..
>
> On Fri, Jan 26, 2018 at 2:13 PM, Bruce Hislop wrote:
>
>>> So just looking at the Proterra specs for their smallest unit - 35ft. It
>> can go 55-72miles on 94-126Kwh of energy.
>>
>> So we'll say that's 63 miles on 110kwh of energy, so that's about an
>> hour's driving. So you would need a generator capable of at least 110kw
>> continuous to keep up with the energy demand if you like hybrid. That's
>> equivalent to 20 Onan's putting out near full rated power.
>>
>> One HP = 746 watts, so 110kw/ 746 watts = 147hp is the electrical
>> equivalent steady for an hour for their electrical consumption.
>>
>> A 100AmpHr 12V battery = 1.2kw so you would need about 100 batteries to
>> drive an hour at this rate, but actually more. Lead acid should not be
>> taken
>> below 50% charge and li-ion below 80%. so even Li-Ion will need about 125
>> batteries. At about 40lbs each that's 2.5 tons to add. 100Amphr batteries
>> are going for ~$750 each so that's about $94,000 in batteries, plus
>> chargers and battery monitor systems.
>>
>> My sister recently bought a VW Golf EV. She took a pic of her power
>> consumption to send me. It was 27.2Kwh/100km, so thats 27.2kwh for 63 miles
>> or
>> about 1/4 of what this bus does. Her diesel VW likely got her 45mpg vs a
>> bus at likely 5-6mpg, so I don't think she is doing very good with it.
>>
>> EV get better city than hyway because they regenerate to charge the
>> batteries while braking with little wind resistance. We do mostly highway
>> with
>> little braking and high wind resistance, so its mostly just a continuous
>> load.
>>
>> I'd say their record miles on a charge was likely at slow speed, no more
>> than 25 mph where the wind resistance is still low and only against rolling
>> resistance.
>>
>> Just my farmboy mechanic, 45yrs in electronic technology way of seeing it.
>>
>>
>> --
>> Bruce Hislop
>> ON Canada
>> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
>> Hubler 1 ton front end
>> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
>> My Staff says I never listen to them, or something like that
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>>>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com mailto:jimk@appliedairfilters.com
> http://www.appliedgmc.com
> 1-800-752-7502
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Electric motor converision [message #328640 is a reply to message #328639] |
Fri, 26 January 2018 23:58 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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It's been over a year and I did not keep their contact info.
Sorry, should they contact me I will post it.
On Fri, Jan 26, 2018 at 5:26 PM, jhb1 wrote:
> Have a look here
> https://www.tm4.com/
> Proven tech available now
> HTH
> --
> John H. Bell
> 77 Royale; QuadBag,Manny OneTon,Honda EV4010, FITech
> Montreal Qc.
>
> _______________________________________________
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Electric motor converision [message #328648 is a reply to message #328587] |
Sat, 27 January 2018 14:45 |
Handyman
Messages: 229
Registered: April 2016
Location: The Netherlands
Karma: 2
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Senior Member |
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Hello Ethan,
It was a German test with that trailer.
https://www.caravaning.de/zugwagen/tesla-model-x-elektroauto-zugwagen-alpen/
To summarize:
Enormous power, short range. The Tesla X P90D is one of the best towing vehicles I've ever driven: tremendous power paired with fat torque make it unrivaled. However, the driver lacks almost any feedback about how energy-intensive the driving condition is currently. Unlike a gas engine, the gearless Tesla does not switch back, does not turn loud or slow on steep ramps, and accelerates vehemently even on a gentle "gas" foot. And that costs reach. If you want to save energy, join the highway behind a truck. My conclusion is ambivalent: the car works, but imposes restrictions on the camper.
Daniel
Daniel Jacobs, NL-USA 1977 GMC Eleganza II, Rebuild 455 (2019) 3.55 FD. FiTech and (Modified) FCC, Electric Pump, insulated GasTanks, 100A Alternator, APC, McDash, Schräder Valves + extern Fills, Ceramic Film, TPMS, FlexSteel Seats
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