Search found 10 matches

by Coolohm
Dec 05, 2017 4:26 pm
Forum: Motor Technology
Topic: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15
Replies: 506
Views: 38233

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

By smoother do you mean power delivery or the fact that your setup is in an old Honda? :lol:

Is smoother just more algorithm tuning?
by Coolohm
Nov 04, 2017 5:29 pm
Forum: Motor Technology
Topic: Hi power inverter for Nissan leaf motor. Dyno's 302.3hp p15
Replies: 506
Views: 38233

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

Thanks for posting that paper Lebowski - constant debate about this for CAN cable too.
by Coolohm
Oct 22, 2017 8:23 pm
Forum: Motor Technology
Topic: Time for MORE POWER! 1400a 1200v IGBT controller build!
Replies: 52
Views: 1785

Re: Time for MORE POWER! 1400a 1200v IGBT controller build

Ahh I see now the reason for the orientation - that makes the bus bars and caps very tidy!
by Coolohm
Oct 18, 2017 12:13 am
Forum: Motor Technology
Topic: Time for MORE POWER! 1400a 1200v IGBT controller build!
Replies: 52
Views: 1785

Re: Time for MORE POWER! 1400a 1200v IGBT controller build

How about rotating them 180 degrees so that they clamp onto a central extruded alloy "cooling tower"? Something like this, which you could weld a plate on one end with two fittings, and a plate on the other with a notch out of the gussets so the coolant flows down then back up. Absolutely not. The ...
by Coolohm
Oct 16, 2017 2:09 am
Forum: Motor Technology
Topic: Time for MORE POWER! 1400a 1200v IGBT controller build!
Replies: 52
Views: 1785

Re: Time for MORE POWER! 1400a 1200v IGBT controller build

How about rotating them 180 degrees so that they clamp onto a central extruded alloy "cooling tower"?

Something like this, which you could weld a plate on one end with two fittings, and a plate on the other with a notch out of the gussets so the coolant flows down then back up.
by Coolohm
Oct 15, 2017 4:49 pm
Forum: General Discussion
Topic: Any Auto AC Mechanics Here?
Replies: 9
Views: 298

Re: Any Auto AC Mechanics Here?

Have you ever had it topped up with gas? In the cooler weather the pressure may be dropping and the HPLP switch may be inhibiting the pump. That would be my first check. Then I would look for info to locate and test the outside ambient temp sensor. If that's faulty and reading wrong the climate cont...
by Coolohm
Oct 15, 2017 1:23 am
Forum: Motor Technology
Topic: Time for MORE POWER! 1400a 1200v IGBT controller build!
Replies: 52
Views: 1785

Re: Time for MORE POWER! 1400a 1200v IGBT controller build

What if a company behind a cloud CAD tool goes bust or decides to start charging ? Then all your stuff is lost or behind bars ? With FreeCAD even 15 years from now you can still startup your old computer and access your designs... It's possible but with this particular company unlikely IMO. They ha...
by Coolohm
Oct 14, 2017 11:42 pm
Forum: Motor Technology
Topic: Time for MORE POWER! 1400a 1200v IGBT controller build!
Replies: 52
Views: 1785

Re: Time for MORE POWER! 1400a 1200v IGBT controller build

Love what you're up to man! I've got a dozen Infineon fs400r07a1e3 IGBTs out of used TM4 inverters that I should do something with (if I can get time). Looks like they have part of the gate driver attached. First I need to figure out how to test them, then ditch the TM4 logic board and come up with ...