CT9A Resurrection and Innovation
#303
cables & terminations for motor & contactor
Refocusing my efforts on the motor bay. It should really start to look like something soon. 4/0 cables for motor-controller and 2/0 cables for controller-contactor-traction pack. The cables contain a soft copper conductor and are double wrapped with irradiated cross-linked elastomer insulation and a jacket to provide shielding for reduced noise. They are international safety orange, indicating high voltage. These cables are specifically designed for vehicle use. UL rates them to 1000v, although I'll only subject them to a measly 400v at most.
Refocusing my efforts on the motor bay. It should really start to look like something soon. 4/0 cables for motor-controller and 2/0 cables for controller-contactor-traction pack. The cables contain a soft copper conductor and are double wrapped with irradiated cross-linked elastomer insulation and a jacket to provide shielding for reduced noise. They are international safety orange, indicating high voltage. These cables are specifically designed for vehicle use. UL rates them to 1000v, although I'll only subject them to a measly 400v at most.
Last edited by electron bom; Jun 16, 2016 at 09:23 PM.
#305
more things
Calipers from detective coating showed up, these are completely rebuilt. New brackets, pins, pads, and braided lines accompanying them. They are very nice to behold.
Cool shot of the EXRAD jacket on the 2/0 wire. I fumbled one of the motor cables, otherwise I'd be posting a picture of the motor all wired up
Calipers from detective coating showed up, these are completely rebuilt. New brackets, pins, pads, and braided lines accompanying them. They are very nice to behold.
Cool shot of the EXRAD jacket on the 2/0 wire. I fumbled one of the motor cables, otherwise I'd be posting a picture of the motor all wired up
The following 2 users liked this post by electron bom:
OZR_Lancer (Jun 24, 2016),
PAdutch (Jun 21, 2016)
#310
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Are you planning on adding more batteries? There is a company that sells them for a hefty price. I'm wondering how it would be wired up or if the software gets updated. I just bought a leaf and considering adding another pack...
http://cleantechnica.com/2016/01/19/...ing-to-48-kwh/
http://cleantechnica.com/2016/01/19/...ing-to-48-kwh/
#311
Are you planning on adding more batteries? There is a company that sells them for a hefty price. I'm wondering how it would be wired up or if the software gets updated. I just bought a leaf and considering adding another pack...
http://cleantechnica.com/2016/01/19/...ing-to-48-kwh/
http://cleantechnica.com/2016/01/19/...ing-to-48-kwh/
I'm ignorant on the specifics of a LEAF BMS. However, I believe adding a 2nd bank of modules to your battery would require a 2nd BMS to handle the extra cells. I've observed that the used market price-per-module is $100 +/- $20. Hybridautocenter.com sells 11kW/h packs with bus bars and plastics for $2900.
Last edited by electron bom; Jul 4, 2016 at 07:47 AM.
#314
No idea. There are too many variables to make any guess worth a damn.
Most authorities can't even agree on the range of the Nissan LEAF.
Range Ratings for 2012 Nissan LEAF (24kWh Li-ion Pack)
Nissan: 100 miles
EPA : 73 miles
FTC: 96-110 miles
NEDC Automaker test: 109 miles
Personal Reports I've been privy to: 80-85miles
Some of the most noteworthy differences:
A Nissan LEAF is: A/C powered, has brake regen, single gear, FWD, and is 3350 lbs.
My Single motor EVO is: D/C powered, has no regen, 5 speed, AWD, and 2850 lbs (est).
To further complicate calculations, I'm not using a complete (24kWh) Nissan LEAF Li-ion pack. Initially, I will only use half (12kWh), but I intend to install another 6kWh of cells later this summer or early fall. A/C motors are more efficient than D/C motors, but A/C controller/inverters are less efficient than D/C motor controllers, plus I'll have 4 extra gears, so it almost balances out (for sake of simple math).
-The Evo will have 75% the stored energy of a Nissan LEAF.
-The Evo weighs (on paper) 15% less than the LEAF.
For pure highway driving, I would expect the Evo to have a lower range per kWh ratio than a LEAF. However, this build will not see much highway use. So, for the intended driving conditions and an 18kWh pack, 45 miles? 50? 60? I'd be shocked (heh) to see much more than 60 with only 18kWh.
Most authorities can't even agree on the range of the Nissan LEAF.
Range Ratings for 2012 Nissan LEAF (24kWh Li-ion Pack)
Nissan: 100 miles
EPA : 73 miles
FTC: 96-110 miles
NEDC Automaker test: 109 miles
Personal Reports I've been privy to: 80-85miles
Some of the most noteworthy differences:
A Nissan LEAF is: A/C powered, has brake regen, single gear, FWD, and is 3350 lbs.
My Single motor EVO is: D/C powered, has no regen, 5 speed, AWD, and 2850 lbs (est).
To further complicate calculations, I'm not using a complete (24kWh) Nissan LEAF Li-ion pack. Initially, I will only use half (12kWh), but I intend to install another 6kWh of cells later this summer or early fall. A/C motors are more efficient than D/C motors, but A/C controller/inverters are less efficient than D/C motor controllers, plus I'll have 4 extra gears, so it almost balances out (for sake of simple math).
-The Evo will have 75% the stored energy of a Nissan LEAF.
-The Evo weighs (on paper) 15% less than the LEAF.
For pure highway driving, I would expect the Evo to have a lower range per kWh ratio than a LEAF. However, this build will not see much highway use. So, for the intended driving conditions and an 18kWh pack, 45 miles? 50? 60? I'd be shocked (heh) to see much more than 60 with only 18kWh.