Building a sporty EV. Need some help estimating performance.

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
Jayls5   100 mW

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Joined: Oct 22 2012 11:13pm
Location: Portsmouth, VA

Re: Building a sporty EV. Need some help estimating performa

Post by Jayls5 » Jul 10 2017 9:40am

Ok, so here's the story:

I bought the AC35x2 /w rear aux shaft second hand without the controllers, never used.
I was hoping to quickly rig my own two controllers on it:
1238-7601 (650A) & 1238-7501 (550A)

I then discovered that motor required a special wiring harness with opto-isolator to split the encoder signal to the two controllers.

I asked EV West about the harness, and they ended up informing me that it wouldn't work with the 2 different controllers. So, I was faced with buying a new 1238-7601 to match my other. I paid for it a while ago now, but Curtis has been behind on production. A dual controller harness is also being made for me.

I doubt many people have two of the 144v controllers lying around, or would be willing to trade, and I'd still be short the harness. (No idea how proprietary the encoder isolator is)

Any other surprises I have to look forward to? Was getting the two controllers working together as master/slave tricky?

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kiwiev   10 kW

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Location: Jindabyne NSW Australia

Re: Building a sporty EV. Need some help estimating performa

Post by kiwiev » Jul 10 2017 3:52pm

Thats good bro do you need the whole harness with the controller plugs?

Cheers Kiwi

Jayls5   100 mW

100 mW
Posts: 44
Joined: Oct 22 2012 11:13pm
Location: Portsmouth, VA

Re: Building a sporty EV. Need some help estimating performa

Post by Jayls5 » Jul 11 2017 10:56pm

kiwiev wrote:Thats good bro do you need the whole harness with the controller plugs?

Cheers Kiwi
I don't believe so; they have that in order as of yesterday, and it's finally ready to ship. Shouldn't be too much longer until I get all the goodies in the mail. I think the only thing I'm missing is the main pack fuse and one more individual controller fuse. I'll be able to do motor testing off of my 103v 90AH LIPO pack on my Sandrail.

I believe I will have the AC-35x2 drivetrain in running order before I even get the damn 240z rolling chassis. :lol:

galderdi   1 kW

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Re: Building a sporty EV. Need some help estimating performa

Post by galderdi » Jul 13 2017 2:33am

1resized.jpg
You can buy mine for AU$50,000 (Plus freight).
Its a runner.
But if you really want a rolling chassis you can have it for AU$55,000 (Plus Freight)

Jayls5   100 mW

100 mW
Posts: 44
Joined: Oct 22 2012 11:13pm
Location: Portsmouth, VA

Re: Building a sporty EV. Need some help estimating performa

Post by Jayls5 » Jul 19 2017 3:52am

Look what came in the mail! :mrgreen:

Image


Got a 1000A continuous Gigavac maintenance switch, automotive grade adjustable temp fan & pump switch, dual wiring harness with potted opto isolator, curtis connector covers for a nice look, water chill plates, and two 1238-7601 controllers are supposedly now set for primary/secondary duty on the AC35x2.

A nice ~140 hp / 260 tq setup to get me started. Still have to buy the fuses, but I think that's all I need to start testing on my crated motor.

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kiwiev   10 kW

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Re: Building a sporty EV. Need some help estimating performa

Post by kiwiev » Jul 19 2017 7:33am

Nice mate does your motor have the internal motor encoder? Just be careful now its out of warranty because high amps can kill it which in turn blows the controller just speeking from experience.

Cheers Kiwi

Jayls5   100 mW

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Posts: 44
Joined: Oct 22 2012 11:13pm
Location: Portsmouth, VA

Re: Building a sporty EV. Need some help estimating performa

Post by Jayls5 » Jul 19 2017 1:31pm

kiwiev wrote:Nice mate does your motor have the internal motor encoder? Just be careful now its out of warranty because high amps can kill it which in turn blows the controller just speeking from experience.

Cheers Kiwi
I honestly didn't open the box that far to check. Is there an easy way to differentiate between the two? I thought they were all kind of mounted near the back by the aux shaft.

I read about yours going and taking out a controller with it. I couldn't afford another controller at this point, so I'll just have to hope your situation was a fluke.

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kiwiev   10 kW

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Location: Jindabyne NSW Australia

Re: Building a sporty EV. Need some help estimating performa

Post by kiwiev » Jul 19 2017 4:20pm

If both leads come out of motor near the front you have a internal encoder which is mag pulse sensor I don't know if I just got a dud sensor and the Magnetic fields killed it.

Cheers Kiwi

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