Power in Flux

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    Yea, I'm going to chat with a buddy of mine this...

    Yea, I'm going to chat with a buddy of mine this weekend about making a PM rotor for the motor. Would improve efficiency and could allow us to lower the commutation frequency requirements for higher...
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    Nope pretty much gave it up so that I could have...

    Nope pretty much gave it up so that I could have a working bike using a zero motor and sevcon. I still have the motor sitting in my room. It may get used one day

    Sent from my SCH-I605 using...
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    I think I figured out what resolver is used on...

    I think I figured out what resolver is used on this motor. I was reading up about the Prius motors and noticed that someone had determined what resolver was used on that so I searched the catalog...
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    Im getting there. Mine is mounted and chained to...

    Im getting there. Mine is mounted and chained to the rear wheel. I have a buddy working on a PCB layout for a resolver to encoder board so that I can run it with my Curtis 1238. Itll probably be...
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    You son of a b1tch! Did they have anymore?

    You son of a b1tch!

    Did they have anymore?
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    Just measured the pulleys on the eAssist motor. ...

    Just measured the pulleys on the eAssist motor. The motor has a 3" pulley and the crankshaft has a 6.5" pulley. So at 150Nm crank that means the eAssist electric motor is putting out about 69.23Nm...
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    Yea I meant that you could get 10,000 RPM at 115V...

    Yea I meant that you could get 10,000 RPM at 115V if you had the frequency ability (the BEMF won't be the limit). I am still aiming for a ~4500RPM as the top speed I can run with the Curtis due to...
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    Wow you're totally right here. I have a torque...

    Wow you're totally right here. I have a torque speed curve of the eAssist but never thought that it would be after the reduction. So this means it might spin up to 10k rpm with only 115V. This...
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    Yea that would work out well without needing any...

    Yea that would work out well without needing any machining work. 1/2" pitch is a #40 chain 5/8" pitch is #50 which is the same as 530 motorcycle chain

    Could also go with one of these if you...
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    Use one of these and machine out a sprocket bore ...

    Use one of these and machine out a sprocket bore

    http://www.fennerdrives.com/trantorque/_/Trantorque-OE-17mm/?s=cHw1...
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    Yea the spare one is because I wired it backwards...

    Yea the spare one is because I wired it backwards the first time around and messed up the temperature sensor side of board (which conveniently isn't needed for this mod!).

    Got a reply from James...
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    Thanks for the info. I have a feeling the...

    Thanks for the info. I have a feeling the Arduino solution won't be any better than the Pico.

    Funny thing is I actually have experience with the Tritium Controller and the type 3 interface board....
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    Think this guy would work...

    Think this guy would work http://pico-systems.com/resolver.html?
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    Yea a little bit. I actually think it will be a...

    Yea a little bit. I actually think it will be a lot better plan to try that. Two issues right now. Testing that the resolver still functions (visual inspection looks good). Know any good ways to...
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    Alright so I have been looking at Encoders from...

    Alright so I have been looking at Encoders from US Digital. Since I will be using a Curtis controller with this guys first. There are 3 speed limits; firmware 8000RPM, Elec frequency limit...
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    Brute Force for the win! Finally go the the...

    Brute Force for the win! Finally go the the resolver out of the motor. It's just pressed fit in, but there is not much room for leverage. I manage to pry it out without damaging it too much. I...
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    Some really good news. I tested the insulation...

    Some really good news. I tested the insulation resistance yesterday with a nice Fluke meter. We tested first at 273V (that's just what the meter used) and resistance was somewhere in the 6 mega-ohm...
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    Yea I've worked with a resolver on the EMRAX...

    Yea I've worked with a resolver on the EMRAX motor and understand its basic operation. Started thinking that might be what it was. Unfortunately taking a closer look at my resolver I think some of...
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    I received my motor on Friday. It weighs in at...

    I received my motor on Friday. It weighs in at 13.15kg (or 29lbs). It measures about 180mm (7.1") diameter and 125mm (4.9") long. Then terminals add about another 2.5" extended block off the rear...
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    I think I was finally able to place an order for...

    I think I was finally able to place an order for 1 of these motors from a salvage yard. Will report back next week sometime when it arrives... Paid about $480 out the door. Thoughts are to...
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    Great find yeaw!...decisions...decisions. I'm...

    Great find yeaw!...decisions...decisions. I'm never going to actually pick an AC system now haha
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    Either you have to own the vehicle or I think...

    Either you have to own the vehicle or I think more likely you have to exchange the old part for the new one.
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    Source two ran into the same issue as my buddy at...

    Source two ran into the same issue as my buddy at the dealer. It appears that GM really doesn't want anyone using any of these motors. I'll keep snooping around trying to get my hands on one of...
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    Just threw the money down for the motor. ...

    Just threw the money down for the motor. Hopefully this source will actually be able to ship me a motor. Said 3-5 days so hopefully will have something next week.

    A few shots of the motor...
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    Thanks lugnut, so it works in a similiar manner...

    Thanks lugnut, so it works in a similiar manner to a PMAC motor and its KV (RPM/V) constant.

    I will reread your post a couple of times and work out an example and hopefully it will stick :D
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