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--- builds:alternators [2018/07/21 22:48]
poleguy [Notes from Facebook group discussion]
+++ builds:alternators [2018/07/22 16:25] (current)
poleguy
@@ Line 5: / Line 5: @@
   - Get an alternator from a junkyard (or pay for a new one on ebay, rockauto.com, etc.)
  (If anyone has pictures/model numbers/car models and years, please contribute here.)
+[[https://alternatorparts.com/cs130-cs130d-series-alternators.html|CS130D]]
 Phantom 48 used a GM alternator.
 Phantom ICT uses a bigger one.
   - Remove the regulator. (Unbolt)
+{{:builds:img_20160917_110715278.jpg?200|}}
   - Solder some RC style bullet connectors on to the three windings.
+{{:builds:img_20160917_101110505.jpg?200|}}
   - Solder wires onto the contacts for the brushes to drive the field windings.
-  - Isolate the brushes from the case with a nylon washer.
+{{:builds:img_20160917_112614789.jpg?200|}}
+  - Isolate the brushes from the case with nylon washers, bolts, or by clipping the metal so it doesn't touch.
+{{:builds:img_20160917_114709251.jpg?200|}}
+  - Reassemble
+{{:builds:img_20160917_114703149.jpg?200|}}
   - Get a controller.[[https://ebay.com/itm/48V-DC-1500W-Brushless-Motor-Controller-For-E-bike-Scooter-Electric-Bicycle-US/252876629480?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649|1500W]]
   - Get a field drive (Constant Current). [[https://ebay.com/itm/172787419292?ul_noapp=true|
@@ Line 402: / Line 409: @@
 Manage
 y · Like
+====== Batteries ======
+Mike Reilly
+July 6, 2015
+Next short survey: what's your choice of battery? The brand and model would be very appreciated.
+Comments
+Like
+Comment
+Comments
+Jon Halverson
+Jon Halverson Phantom48 uses 12S2P LiFePo packs made with 8 Ahr cells from Headway. The older discontinued power cell, thus the closeout deal when we bought them. We add a 250A fast blow fuse internally to protect the cells from a dead short.
+Manage
+y · Like
+Tanju Bayramoglu
+Tanju Bayramoglu currently running 3x 35Ah SLAs from Harbor Freight's "solar panel department", they're big and heavy. hoping to upgrade in the coming years.
+Manage
+y · Like
+Randy Farmer
+Randy Farmer I have two packs made with 3x18ah UPS batteries, and one pack that are very similarly sized Wal Mart special AGM 3x18ah ATV batteries.
+Manage
+y · Like
+Scott Rizzo
+Scott Rizzo 2 12vx35Ahr simular to Tanju Bayramoglu. Would love to go to LiFePo but dont have the budget. Need a deal like Jon Halverson found.
+Manage
+y · Like
+Jon Halverson
+Jon Halverson Scott Rizzo, It was the 38120P that we found for $9 each. There are deals like that around, but you gotta watch for them. A123 pouches are what we really wanted to build with, but the market on them at the time was not good. Our packs are $216 each,…See More
+Manage
+y · Like
+Scott Rizzo
+Scott Rizzo I've seen the video of the snowblower and mower. Very cool use what you have learned with the car.
+Manage
+y · Edited · Like
+Scott Rizzo
+Scott Rizzo I think in the off season I am going to experiment with the alternator as motor power system. I could remove a lot of weight over my 40+ lb motor and maybe extend the battery run time
+Manage
+y · Edited · Like
+Jon Halverson
+Jon Halverson The motors on the blower and mower are nice DC motors. we would have loved to use them for P48, but determined early on they were no way legal to run based on the budget rules. Using alternators was the alternative, and felt like an appropriate chall…See More
+Manage
+y · Like
+Scott Rizzo
+Scott Rizzo If you have some time in Detroit I would like to pick your brain a little on the alt conversion. I have been doing some research but any info you are willing to share would be appreciated. I am sure I will be starting with off the shelf parts just to get it running
+Manage
+y · Like
+Chris Lee
+Chris LeeChris and 2 others manage the membership, moderators, settings, and posts for Powerwheels Racers for Adults. Ditto, I'd love to hear about your alternator setup.
+Manage
+y · Like
+Jon Halverson
+Jon Halverson More than happy to. Get a couple of these to start: http://www.ebay.com/.../36V-800W.../160806898126.... Then you need to find/make something that will put around 3A through the field winding. We raced 1.5 seasons like that, and still bring them to every race just in case.
+Manage
+EBAY.COM
+V 800W Brushless E-bike& Scooter Controller With Hall
+y · Like
+Randy Farmer
+Randy Farmer Are you using one of these new fancy brushless alternators, or a good old fashioned one?
+Manage
+y · Like
+Jon Halverson
+Jon Halverson I didn't know there was such a thing as a brushless alternator. I forget the model number on ours, but its a stock 90's GM alternator. One has "92 Lumina" written on it. There are pics around. The field magnetizing current technically flows through brushes, but its low current and not commutating so technically its still considered a "brushless" motor. Update: CS130D is the alternator model.
+Manage
+y · Edited · Like
+Scott Rizzo
+Scott Rizzo Looked up the part on eBay. Is it possible to run on 24volts or does it need to be 36? My battery packs are 24v now and I am not sure I could fit an additional battery in the car
+Manage
+y · Edited · Like
+Jon Halverson
+Jon Halverson Charles Guan has some tear down info you should read. Look up Jasontroller.
+Manage
+y · Like
+Charles Guan
+Charles Guan we couldn't get my van's alternators to produce torque worth shit. must be a "big muscular U.S. mancar with big muscular U.S. man-ternator" thing
+Manage
+y · Like
+Jon Halverson
+Jon Halverson We started with static torque tests to see what current ranges worked best. We fed one phase and used a torque wrench to see what it took to break it over. We were able to see the field saturate, but never did find the limit on motor current. At 150A its hard to do a stalled test without smoke coming out.
+Manage
+y · Like
+Jon Halverson
+Jon Halverson Charles Guan are you sure your field winding was working right? The alts will spin just on residual magnetism, but really low torque.
+Manage
+y · Like
+Randy Farmer
+Randy Farmer So how well do the run at 80/60/40 amps? I'm intrigued now
+Manage
+y · Like
+Jon Halverson
+Jon Halverson this thread is getting long... We won a stack of medals with two china controllers limited to 30A each. That ended up being just about perfect for the 40A fuse. That's 30A battery current., motor current can be much higher. With our own controller design we have more control over things, but the 40A fuse keeps it from being a huge advantage. When the power into the system is limited like it is, a fast car has to be an efficient car. We really need to build a dyno...e
+Manage
+y · Like
+Mike Reilly
+Mike Reilly Thanks again folks, more short questions to come.
+Manage
+y · Like
 ====== Greyslake garage, Hall Install ======

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