Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Electric Motors and Controllers
Buk___
10 kW
10 kW
Posts: 717
Joined: Jul 28, 2017 5:59 pm

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Buk___ » Dec 07, 2017 11:59 am

Arlo1 wrote:
Dec 07, 2017 11:26 am
Seems like its the motors doing it. To hold a car on a slope like that the amount of energy used is VERY small!
This seems to indicate that hill start assist on the Tesla is done using the brakes not the motor.

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 07, 2017 2:48 pm

Hmm that seems to mention it's from park and not from a stop and go type driving situation, and it's very likely they are just thinking it's the brakes even if it is the motors doing the work. I'll look further into it later.
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/

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 07, 2017 5:35 pm

But at the same time the mechanical brakes might make the most sense...
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/

Martin A
100 W
100 W
Posts: 106
Joined: Mar 14, 2010 6:05 am
Location: Hastings, UK

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Martin A » Dec 08, 2017 6:09 am

Isn't there a danger of overheating holding the motor at stall?

p.s. I know next to nothing

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 08, 2017 12:01 pm

Martin A wrote:
Dec 08, 2017 6:09 am
Isn't there a danger of overheating holding the motor at stall?

p.s. I know next to nothing
Yeah the energy required to do it with the motor and controller is small.

When at the track I would push the mechanical brakes as hard as I could then pin the throttle and hold it for a few seconds before the lights went green for me to launch. That was likely ~ 1500 ft-lbs for a few seconds which is about 500-600 amps though 1 phase....

Just to hold the car still on a hill I would expect it to need only 20-40 amps though the motor and about 100ish ft-lbs.
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/

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 08, 2017 12:03 pm

On that note....

Did you guys know with the model 3 Tesla gets all the heat for the interior from the motor and controller from a heat pump....
So if the car is cold they will feed current though the motor and controller and get it warm but the car is locked in position then uses the heat pump to take the motor and controller heat into the cab of the car. They deliberately heat the motor to heat the cab....
Last edited by Arlo1 on Dec 10, 2017 12:16 am, edited 1 time in total.
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/

adapt2entropy
10 µW
10 µW
Posts: 6
Joined: Oct 20, 2013 12:12 pm

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by adapt2entropy » Dec 09, 2017 11:32 pm

That picture of your son is so neat, so appropriate .. thanks for sharing !

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 18, 2017 11:46 pm

Ok Guys I am still working to help support everyone. I have a few kits out there people have been buying over the last year. So here is the pinout for the Brain.

I will also put this in a spread sheet and I will update the brain SCH soon so its easier to read.

-Arlin
Attachments
IMG_20171212_173529772.jpg
IMG_20171212_173529772.jpg (80.66 KiB) Viewed 817 times
IMG_20171212_215734885.jpg
IMG_20171212_215734885.jpg (58.66 KiB) Viewed 817 times
IMG_20171212_215721479.jpg
IMG_20171212_215721479.jpg (68.11 KiB) Viewed 817 times
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/

User avatar
HighHopes
10 kW
10 kW
Posts: 852
Joined: Mar 28, 2013 6:25 pm

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by HighHopes » Dec 21, 2017 10:14 am

They deliberately heat the motor to heat the cab....
seems so obvious now that you point it out! lol. brilliant

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 21, 2017 11:00 am

HighHopes wrote:
Dec 21, 2017 10:14 am
They deliberately heat the motor to heat the cab....
seems so obvious now that you point it out! lol. brilliant
Yeah I think I want to do this. IN the winter about 6 months of the year I would like some heat. So if I use a heat pump and the cold side is the motor/controller and the hot side is in the car perfect.
Then in the summer I will still use it to cool the motor and controller but a valve will make the hot side a radiator.

Tesla seems to be very smart with this stuff.
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/

zombiess
1 GW
1 GW
Posts: 3294
Joined: Feb 01, 2011 2:16 am
Location: Ventura

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by zombiess » Dec 21, 2017 6:24 pm

When I read about how they heat stuff I started wondering if they warm up the IGBTs to get them into their positive temp coefficient operating area. Something I've thought about doing previously when I finally jump to paralleling IGBTs vs MOSFETs.

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 21, 2017 6:43 pm

zombiess wrote:
Dec 21, 2017 6:24 pm
When I read about how they heat stuff I started wondering if they warm up the IGBTs to get them into their positive temp coefficient operating area. Something I've thought about doing previously when I finally jump to paralleling IGBTs vs MOSFETs.
All decent IGBTs for high current I have seen have a higher voltage drop at higher temps. So the cooler the controller the better.
But if it's -20 degC outside warming up the controller and motor to a number good enough to provide meaningful heat for a HVAC system would make sense as the HVAC will be trying to cool the motor and controller what heating the interior of the car. Then once you start driving it will be the same system but just using the losses of the powertrain rather then making it produce head on purpose.
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/

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Dec 23, 2017 3:58 pm

Midas well post this here.

I don't know if I will ever get the crx to this level ;)



-Arlin
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/

User avatar
Arlo1
100 GW
100 GW
Posts: 8564
Joined: Apr 26, 2009 10:36 pm
Location: Nanaimo BC Canada
Contact:

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Arlo1 » Mar 06, 2018 12:33 am

Ok after driving the model S for almost 3 months it was nice to give it back and not have to worry about scratches as much.

It seemed like it was the mechanical brakes holding the car still at a stop after all.

Also Daily planet shard the video of the CRX on FB for those who were not able to see it.

As for how its going. I am installing BMSs soon and hopping to up the power some more when someone gets some cell test data... ;)

https://www.facebook.com/DailyPlanetSho ... V7pwfs414Y
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/

Kuebel
1 µW
1 µW
Posts: 1
Joined: Mar 04, 2018 5:11 am

Re: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15

Post by Kuebel » Mar 06, 2018 2:07 am

Arlo1 wrote:
Mar 06, 2018 12:33 am
Ok after driving the model S for almost 3 months it was nice to give it back and not have to worry about scratches as much.

It seemed like it was the mechanical brakes holding the car still at a stop after all.

Also Daily planet shard the video of the CRX on FB for those who were not able to see it.

As for how its going. I am installing BMSs soon and hopping to up the power some more when someone gets some cell test data... ;)

https://www.facebook.com/DailyPlanetSho ... V7pwfs414Y
Very cool! I remenber seeing the first videos of your crx on youtube some time ago.

You are doing an awesome job! :D

Post Reply