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ben-jeep 01-06-2017 05:06 PM

Jeep CJ5 Electric
 
I decided to convert a 1975 jeep CJ5 to 100% electric.

First I have to do restorations on the jeep. He is more than 40 years old.

http://www.blafleur.net/benjeep/asse...stauration.jpg

http://www.blafleur.net/benjeep/asse...ges/Resto2.jpg

SemperFiGuy 01-06-2017 05:25 PM

Why?

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skizriz 01-06-2017 05:48 PM

Quote:

Originally Posted by SemperFiGuy (Post 37168889)
Why?

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100% torque at any RPM.....
Its a rock crawlers wet dream.


Ill be following this.

StoneTower 01-06-2017 05:51 PM

Quote:

Originally Posted by skizriz (Post 37169065)
100% torque at any RPM.....
Its a rock crawlers wet dream.


Ill be following this.

Unless you are running around your own property, it sounds like "I ran out of charge and my friends had to tow the heavy pig back". If you want it for economy it might be one thing. If you want torque, install a diesel.

skizriz 01-06-2017 06:18 PM

Quote:

Originally Posted by StoneTower (Post 37169097)

Unless you are running around your own property, it sounds like "I ran out of charge and my friends had to tow the heavy pig back". If you want it for economy it might be one thing. If you want torque, install a diesel.

Stinking, rattling diesels out in the woods aint my thing. If one shows up to wheel with us, they have to be at the end of the line. And a new guy gets stuck being in front of them. Lol

On an average trip, we do about 10-15 miles. I burn about 10 gallons of gas, depending on terrain.
I think it could work.

StoneTower 01-06-2017 08:46 PM

Quote:

Originally Posted by skizriz (Post 37169225)
Stinking, rattling diesels out in the woods aint my thing. If one shows up to wheel with us, they have to be at the end of the line. And a new guy gets stuck being in front of them. Lol

On an average trip, we do about 10-15 miles. I burn about 10 gallons of gas, depending on terrain.
I think it could work.

Anything can work but you are talking many hundreds of pounds of batteries. Batteries are not cheap and they age. A good gas of diesel motor lasts many years and if you do not use it, it does not degrade like electric batteries will. If it is what you want, more power to you. I like the security of knowing that I can carry 5 gallons of fuel as a reserve for my 20 gallon tank and I will be able to make it back to the road even after a long day.

CSP 01-06-2017 08:51 PM

There was an old Land Rover in Moab EJS several years ago that was all electric. It was super cool and just made a humming noise. He ran all day on Hell's Revenge when I saw it.

ben-jeep 01-07-2017 08:19 AM

I do not want to start a debate on ecology. I chose to make an electric jeep for the challenge.

It is not my first jeep that I restore and I would say that at least 75% of my pleasure is to disassemble de jeep and modify it.

Here is the adess of my website: http://www.blafleur.net/benjeep/html/liens.html

At the bottom of this page there are videos of jeep that have been converted 100% electric. I would like to do something that resembles the CJ7

hp_lovecraft 01-07-2017 02:31 PM

Quote:

Originally Posted by ben-jeep (Post 37171833)
I do not want to start a debate on ecology. I chose to make an electric jeep for the challenge.

I love the idea of electric vehicles. But I think the resistance here has to do with the fact that the CJ is extremely heavy, but has very little storage. That link you had of someone with an Electric CJ5- it was a fiberglass body on a VW chassis, and he still had to charge it at every short trip.

You would probably need 30 deep cycle batteries, distributed evenly. An easy shortcut would be to mount the DC motor directly to the trans input shaft. But having all that running gear would take up lots of space where the batteries would need to go.

I guess its the age-old argument. How much are you willing to throw at it? Lots of $500 conversions/guides on the internet using basic motors, controllers, and lead-acid batteries. But that might not be usable. However,
with a custom, ultra light chassis, lithium batteries, etc, sure that would work pretty fantastic.

Chrisfol82 01-07-2017 04:10 PM

Will be interesting to see, good luck with it, ill be following along.

ADDZ71 01-07-2017 05:30 PM

l am all in on this. I have also wanted to do this. I am in the battery market sector (Li-Ion) and I think this is a fantastic application particularly rock crawler for the reason Skiz Riz pointed out of 100% torque at any rpm. You will not need near as much battery as a Volt/Leaf/Tesla as you really don't need the range or speed of these vehicles. I am curious of your choice of motor and number. It may may make sense to go with hub motors at each wheel but I have not found any that were durable / cost efficient. I think it definitely makes sense to go Li-Ion as I think you could go with about 12 kWh and probably keep the weight under 1,000 Lbs.

skizriz 01-07-2017 06:16 PM

Quote:

Originally Posted by ADDZ71 (Post 37175217)
l am all in on this. I have also wanted to do this. I am in the battery market sector (Li-Ion) and I think this is a fantastic application particularly rock crawler for the reason Skiz Riz pointed out of 100% torque at any rpm. You will not need near as much battery as a Volt/Leaf/Tesla as you really don't need the range or speed of these vehicles. I am curious of your choice of motor and number. It may may make sense to go with hub motors at each wheel but I have not found any that were durable / cost efficient. I think it definitely makes sense to go Li-Ion as I think you could go with about 12 kWh and probably keep the weight under 1,000 Lbs.

My thought on how to do it simply, would just be the electric motor coupled to a manual transmission and transfer case. That way you could pick the optimal RPM range for the motor to work in while crawling. Being able to lay out the batteries for weight bias would be a big plus in a crawler.

I'm definitely fascinated by this project, and can't wait to see it unfold.

kennyb001 01-07-2017 07:28 PM

Interesting project. Looking forward to see how this goes. Good luck.

STJP 01-07-2017 10:26 PM

Ignore the naysayers. Seems they missed the fact that you were not asking for their opinions. Wonder what motivates their need to deride?

An electric CJ! Great idea and project. Look forward to seeing how it turns out. We will all learn something.

Cheers,

JS

keith460 01-08-2017 04:38 AM

I hope you can pull it off, it's an interesting project. With today's small and powerful electric motors and batteries, there's no reason you can't.


The time now is 05:38 AM.

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