48v Starter / generator motors (BSG alternator)

[jlugert]

The Dodge RAM v8 version of this is an air cooled permanent magnet motor so would work with the VESC

 

[ShadowNightmares]

Hello wiredsim and fellow users.
I saw this thread of yours about high voltage alternators/mild hybrid units, and i already saw some people using these big-power units:

https://endless-sphere.com/forums/viewtopic.php?f=30&t=110673 and http://elmoto.net/showthread.php?t=2676 for a Gen2 GM e-Assist starter/generator

https://endless-sphere.com/forums/viewtopic.php?f=30&t=110673&p=1622253#p1622253
My post on a thread talking about these units, more specifically an explanation between Gen1 GM BAS and Gen2 GM e-Assist systems
(in a nutshell: Gen1/BAS is 36V and a lot more similar to standard 12V alternators already used in DIY projects, but with a resolver for accurate control from the car's "brains", added magnets beside the electromagnetic rotor and a mixed claw pole with thinner "teeth/claws" than standard alternators, Gen2/e-Assist is 115V and a full AC Induction motor, just like your unit there.)

http://isopack.blogspot.com/p/electric-shifter-kart.html for a go-kart using two Hyundai HSG units

https://endless-sphere.com/forums/viewtopic.php?f=30&t=110213 for similar units to the Gen1/GM BAS system but watercooled

https://endless-sphere.com/forums/viewtopic.php?f=7&t=109917 for some discussion about Bosch's e-GoKart platform, where they actually use a modified motor based on an ISG project they created for the use in mild hybrid conversion kits for cars, similar to the idea that Continental had for the eScooter motor

 

[addvalue]

Well the saga of tearing apart things I don’t fully understand continues. I have now taken it apart to bits and pieces. Let’s just say it does not disassemble easily, it drew blood, as is tradition.

I’m sure someone out there that’s familiar with these things is raging at my terrible manhandling of a valuable piece of engineering. But here are the gory pictures.

So the main MCU appears to be an NXP unit that is really quite beefy. Data sheet here:

https://www.farnell.com/datasheets/2793507.pdf

The other ST chip on the board I can’t find any real details on.

I just bought one of these starter/generators with unknow defect. Could you help me do a non-destructive teardown on it?

 

[bigmotherwhale]

Well the saga of tearing apart things I don’t fully understand continues. I have now taken it apart to bits and pieces. Let’s just say it does not disassemble easily, it drew blood, as is tradition.

I’m sure someone out there that’s familiar with these things is raging at my terrible manhandling of a valuable piece of engineering. But here are the gory pictures.

So the main MCU appears to be an NXP unit that is really quite beefy. Data sheet here:

https://www.farnell.com/datasheets/2793507.pdf

The other ST chip on the board I can’t find any real details on.

I have one of these motors I'm trying to repair with a failed PCB it seems, would you be willing to sell me the PCB so i can fix the one I have? Thankyou.