jonescg's eCRX pre-build thread!

Electric cars, trucks, ATVs, NEVs - things bigger than a motorcycle.
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Kurt   10 kW

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Re: jonescg's eCRX pre-build thread!

Post by Kurt » Sep 17 2018 3:36am

Will be following this one close. The CRX in that condition (unmodified... riced out...spoiled) is getting very hard to find so the car alone is a great thing to have in 2018. Once it's fully electric it will be a treasure.


Im missing my old hoist...shed. So know how you feel about not wanting to start new projects without the space and gear.

Kurt.

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Re: jonescg's eCRX pre-build thread!

Post by SlowCo » Sep 17 2018 5:32am

Paul and Arlo here on E-S have experience controlling the Nissan Leaf drive train:
viewtopic.php?t=75863

viewtopic.php?f=30&t=63982

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Re: jonescg's eCRX pre-build thread!

Post by jonescg » Sep 17 2018 7:00am

Yeah it might seem like staling, but the reality is I would take just as long, if not longer if I wasn't set up for the job but started anyway.

Batteries are sorted - just have to find a way to make them fit. I can go for range or power. Not sure which is better, but in all reality range will be the main thing I want the CRX for - 200 km at highway speeds is the goal. I reckon these energy dense cells (208 Wh/kg) might be the way to go but the volume they occupy is still pretty big. It won't set the world alight, but 3 C peaks are OK for fun up to 100 km/h.

SloCo - yeah I have been following Arlin's work for ages. And he proves that the Leaf motor can take a lot of abuse. But just in case I can get a complete motor/inverter assembly it would be good to know if I can transplant the whole lot. No big deal otherwise - the PM150DXR inverter will be more than enough for the job. But it would also be good to save about $8000 in inverter spend.

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Re: jonescg's eCRX pre-build thread!

Post by SlowCo » Sep 17 2018 12:36pm

Then look at the work Paul has done to control the Nissan Leaf motor. He sells boards to drive AC and DC motors. You would have to buy the 3 IGBT half bridges needed to get the power to the motor also. But that should be a lot less expensive in total than the $8k for an inverter you quoted.

Here is the driver board:
https://pandspowerelectronics.ecwid.com ... y=22093524

And the resolver to encoder board:
https://pandspowerelectronics.ecwid.com ... y=16287307

Here's a video showing Paul controlling the Nissan Leaf motor:


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Re: jonescg's eCRX pre-build thread!

Post by Arlo1 » Sep 18 2018 10:54am

jonescg wrote:
Sep 17 2018 7:00am
But it would also be good to save about $8000 in inverter spend.
You should be able to do one of my kits for about 1/2 of this or less.
My Leaf motor controller build. viewtopic.php?f=30&t=63982&p=963227#p963227
My YSR build http://www.youtube.com/watch?v=BRo8r5g4NBg
RC and most types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
HI power controller design. Game Changer
http://www.undergroundelectrics.ca/

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Re: jonescg's eCRX pre-build thread!

Post by jonescg » Sep 18 2018 7:13pm

Arlo1 wrote:
Sep 18 2018 10:54am
jonescg wrote:
Sep 17 2018 7:00am
But it would also be good to save about $8000 in inverter spend.
You should be able to do one of my kits for about 1/2 of this or less.
I'm sure I can get it cheaper - but not as cheap as a home-brew.

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