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  #1  
Old 10-12-2016, 09:49 PM
Arlo Arlo is offline
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Default 1988 CRX with a DIY controller and nissan leaf motor

Hi everyone. I come on here once in a while. But spend most of my time on endlesssphere forums. I have been on here a fair bit lately deciding how to build my own charger. Right now I just use 8 meanwell HLG320 led power supplies.

But non the less I spend 2.5 years developing a 3 phase inverter and used another guys brain (dspic30f4011 with his code) to make it all work.

I have it ripping really well. The Battery is a 112s 5c cont. 10c burst and the pack under the hood is 25ah and right now I am just adding another 50ah to the rear for a total 30.5kwh of usable energy.

I drove the car for about 2 months with just the 10kwh pack under the hood and this car flys! I have played with a app for my smart phone and registered 5.5sec 0-60 but it seems the GPS on the phone is to slow to be acuarate. I am adding a speedo off of 1 rear wheel to use to be more acurate soon. I can roast the tires a any speed from 0-~70km/h with just the battery under the hood and the phase current set to 60% but the rear pack will add another 275hp of usable energy so soon it will be amazing. I have a set of M&H street legal drag slicks coming.
SO This should do very well.

I will try to add lots of info soon. feel free to ask any questions. I did the controller open source. Over on ES. I am just cleaning up the files now.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Cheers.
-Arlin
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Electric CRX With DIy controller and Leaf motor.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Yamaha E-YSR with 15kw DIY BLDC controller!
http://www.youtube.com/watch?v=91pGd...6Y37xYFFPRdPhw

Last edited by Arlo; 10-12-2016 at 09:55 PM. Reason: add stuff :)
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  #2  
Old 10-12-2016, 10:04 PM
Arlo Arlo is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Some pictures
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Electric CRX With DIy controller and Leaf motor.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Yamaha E-YSR with 15kw DIY BLDC controller!
http://www.youtube.com/watch?v=91pGd...6Y37xYFFPRdPhw
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  #3  
Old 10-12-2016, 10:14 PM
Arlo Arlo is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

more pics the oem inverter was full of salt water and corroded.

Here is the last video I made. https://www.youtube.com/watch?v=JYO59Lun2Es



Will make more soon.
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Electric CRX With DIy controller and Leaf motor.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Yamaha E-YSR with 15kw DIY BLDC controller!
http://www.youtube.com/watch?v=91pGd...6Y37xYFFPRdPhw
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  #4  
Old 10-13-2016, 08:54 AM
Moltenmetal Moltenmetal is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

I hate the Endless Sphere forum interface, so I'm very glad you posted over here with a link.

You have done amazing work...absolutely amazing!
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  #5  
Old 10-13-2016, 11:31 AM
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riba2233 riba2233 is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Woo arlo!

Great job, and can't wait for full power run!
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  #6  
Old 10-13-2016, 12:40 PM
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palmer_md palmer_md is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Wow, fantastic work.

I'm a bit confused about the components. I see you have your own driver board and control scheme for the IGBT's, but are they the stock Leaf IGBT's or did you also replace those as well and are just using the housing from the original Leaf inverter.

It would be awesome to just remove the Nissan driver board and install yours to gain more control and power from the stock IGBT's.
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  #7  
Old 10-13-2016, 12:53 PM
Arlo Arlo is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Quote:
Originally Posted by palmer_md View Post
Wow, fantastic work.

I'm a bit confused about the components. I see you have your own driver board and control scheme for the IGBT's, but are they the stock Leaf IGBT's or did you also replace those as well and are just using the housing from the original Leaf inverter.

It would be awesome to just remove the Nissan driver board and install yours to gain more control and power from the stock IGBT's.
Thank you.

I reaplced them with 1MBI800U4B-120 IGBTS from fuji. they are 1200 amps at 25 deg C and 800 amps at 80 deg C

I think the oem leaf IGBTs are 900 amps at 25 deg C But the oem igbts were corroded from the salt water. I will post more pictures soon.
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Electric CRX With DIy controller and Leaf motor.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Yamaha E-YSR with 15kw DIY BLDC controller!
http://www.youtube.com/watch?v=91pGd...6Y37xYFFPRdPhw
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  #8  
Old 10-31-2016, 07:40 AM
arber333 arber333 is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Hi

Do you have any data about Leaf motor thermistor values above 40C? Is there some reference which sensor it uses?

tnx

Arber
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  #9  
Old 10-31-2016, 10:17 AM
Arlo Arlo is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Quote:
Originally Posted by arber333 View Post
Hi

Do you have any data about Leaf motor thermistor values above 40C? Is there some reference which sensor it uses?

tnx

Arber
I assumed it was a 10k thermister... But I will measure it.

I have not even watched the motor temp. The IGBTs get hot faster then the motor. I will be hooking up the liquid cooling this week as well.
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Electric CRX With DIy controller and Leaf motor.
https://endless-sphere.com/forums/vi...p?f=30&t=63982
Yamaha E-YSR with 15kw DIY BLDC controller!
http://www.youtube.com/watch?v=91pGd...6Y37xYFFPRdPhw
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  #10  
Old 10-31-2016, 12:13 PM
arber333 arber333 is offline
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Default Re: 1988 CRX with a DIY controller and nissan leaf motor

Quote:
Originally Posted by Arlo View Post
I assumed it was a 10k thermister... But I will measure it.

I have not even watched the motor temp. The IGBTs get hot faster then the motor. I will be hooking up the liquid cooling this week as well.
Well here i have the Nissan docs and they say its a 20K some termistor. While in my garage i measured 25K, but it is cold out now. Attached is the page from Nissan.
What i would like you do for me is to hook up one known temp sensor into water cooling, so you know the water temperature and then measure motor thermistor when water reaches 70C or so. This should be still survivable temperature for IGBTs if you used same water cooling for motor and inverter.

With my ACIM inverter i get to 45C for inverter only. Johannes says his inverter reduces power at 80C. With Leaf motor we have to be careful not to demagnetize neodim metal...
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