Electric conversion of a Kubota B26 / Similar

[Williy]

To cut down on the batteries just add a Yanmar
diesel generator to the back of your tractor. You
can get one big enough to supply all your power
and a tank full of fuel will last more than a day usually
The generator if its big enough should supply all the
power you need and then only a few batteries or no
batteries will be required??????????????

willy

 

[4570Man]

To cut down on the batteries just add a Yanmar
diesel generator to the back of your tractor. You
can get one big enough to supply all your power
and a tank full of fuel will last more than a day usually
The generator if its big enough should supply all the
power you need and then only a few batteries or no
batteries will be required??????????????

willy

Is this sarcasm or are you serious?

 

[jigs_n_fixtures]

It would be a niche market, for very exceptional circumstances, and all of those circumstances already have dedicated equipment available. So, I think it is very doubtful anyone has done it commercially.

For the normal uses a tractor performs, an internal combustion engine is just more practical.

If I were doing it, I would run dedicated electro-hydraulic systems for the loader and each implement. And, one dedicated large motor for the drive system.

 

[Williy]

4570 Is this sarcasm or are you serious?
With a generator you don't have all the
cords from the house/barn etc. You can
run all day on a tank of fuel. Yanmar diesel
generators are heavy but believe all the batteries
needed gen would probablely weight less. Putting
the gen on the back of the tractor leaves more
room for the electric components. Also you might
not need any batteries as you just plug into the gen
as you have 110/120 & 220. Now do you understand??

willy

 

[CalG]

True. Part of why I am encouraging galstaf to consider a cord / cable option for this. Will also save a ton of money on the battery. Can build it with a little battery, and then add if he discovers he needs more. Covered part of this on this thread >>> Cord Management on Grid-Connected Electric Tractors and Mobile Equipment

Gee guys

Read the original post:

"I am really interested in converting it to use a bunch of lithium battery packs from eBikes I got at an auction. There are 36V and 48V packs (42V to 54V when fully charged). Decent capacity.. 500Wh to 1kWh each."

The fellow is interested in the build BECAUSE he has batteries!

 

[CalG]

4570 Is this sarcasm or are you serious?
With a generator you don't have all the
cords from the house/barn etc. You can
run all day on a tank of fuel. Yanmar diesel
generators are heavy but believe all the batteries
needed gen would probablely weight less. Putting
the gen on the back of the tractor leaves more
room for the electric components. Also you might
not need any batteries as you just plug into the gen
as you have 110/120 & 220. Now do you understand??

willy

How long have diesel electric locomotives been in service?

A LOOOOONG time. It's a proven technology that makes the best of electric driven motion.

 

[/pine]

Gee guys

Read the original post:

"I am really interested in converting it to use a bunch of lithium battery packs from eBikes I got at an auction. There are 36V and 48V packs (42V to 54V when fully charged). Decent capacity.. 500Wh to 1kWh each."

The fellow is interested in the build BECAUSE he has batteries!

Why I questioned the amount of work that could be done on a charge...

Personally if I had the batteries...I would look at converting an elec. golf cart etc. from L/A batteries to Li... with the right controller and charging unit an older upgraded cart could be flipped for a nice profit...

Even if the OP replaced the diesel with 3 phase motors...it still would require a controller similar to what is used in elec. carts...

 

[4570Man]

How long have diesel electric locomotives been in service?

A LOOOOONG time. It's a proven technology that makes the best of electric driven motion.

Yea except they’re using electric drive. Using a Diesel engine to drive a generator to drive an electric motor to drive a hydraulic pump that could just as well be bolted to the Diesel engine is foolish.

 

[4570Man]

4570 Is this sarcasm or are you serious?
With a generator you don't have all the
cords from the house/barn etc. You can
run all day on a tank of fuel. Yanmar diesel
generators are heavy but believe all the batteries
needed gen would probablely weight less. Putting
the gen on the back of the tractor leaves more
room for the electric components. Also you might
not need any batteries as you just plug into the gen
as you have 110/120 & 220. Now do you understand??

willy

Why wouldn’t you just take that Yanmar diesel or better yet the kubota diesel that came out of it and bolt it up to the pumps. Your proposed conversion is totally foolish. You loose the only advantage the electric once had of being quite. You loose the fuel efficiency of a hybrid without the batteries. A backhoe really has no potential as a hybrid anyway.

 

[Williy]

Then again the generator would not work
and the cost is high also. The really best
solution is repair the engine you have or
get a new one! Less hassle, easy fix and
you won't strain your brain trying to figure
out on what to use in place of your diesel
engine!

willy