Toyota MGR Rear Traction Transaxle

Topics concerning the Toyota and Lexus inverter drop in boards
Jacobsmess
Posts: 836
Joined: Thu Mar 02, 2023 1:30 pm
Location: Uk
Has thanked: 480 times
Been thanked: 137 times

Re: Toyota MGR Rear Traction Transaxle

Post by Jacobsmess »

Woodfie wrote: Fri Jan 26, 2024 11:11 pm I checked with my friend, At this stage, the MGR , housing has not been cut down.
Will update you when any relevant pictures are taken, is not sounding imminent.
When cut down, I guess it would be a comparable size and Kw to the I 3 Rex,
One complication is that the MGR I think drips or mists oil around the windings, to take heat to the outside case, and the oil is lifted to a channel by reduction gear rotation then distributed by spray from the rotor.. I could be corrected on this, was many years have passed.
Is your intention to use this as a generator?
No exploring options for a small motor to couple to the input shaft of a gs300h for CVT control. But I think it will require too much work to couple and is probably bigger than I need for this application.
Woodfie
Posts: 242
Joined: Wed Mar 09, 2022 6:53 am
Location: Auckland NZ
Has thanked: 221 times
Been thanked: 95 times

Re: Toyota MGR Rear Traction Transaxle

Post by Woodfie »

The CVT control of Lexus gs300h L210 to mitigate the higher speed of MG1 out of field weakening would seem like a Plan.
Have considered locking the 3.3 reduction on Mg2, with obvious torque reduction, but if MG1 and Power split combined with input shaft rotation, Electric or other, the 2.6 ratio of MG1 complimation and output driveshaft could be programmed for its max torque at low speed, (sprague clutch to stop reverse direction of input or your additional motor on the input, drawing amps to provide no rotation,so not a power draw???)and control the max MG1 speed to a non detrimental figure of maybe 6500rpm or similar.

BTW, now Have the I 3 REX now spinning on a Leaf gen2 inverter, if that would help.
I wonder of that unit would be helpful for your CVT plan.

This has become a L210 topic, so will post it there to continue.
Attachments
20240129_124235.jpg
User avatar
jnsaff
Posts: 179
Joined: Fri Oct 18, 2019 7:42 am
Location: Tallinn, Estonia
Has thanked: 3 times
Been thanked: 8 times

Re: Toyota MGR Rear Traction Transaxle

Post by jnsaff »

Jacobsmess wrote: Thu Jan 25, 2024 9:45 am I've come across a very cheap one of these and I was wondering how easy it might be to modify the body to remove the diff. Has anyone opened one of these up? Looking at the pics it's difficult to tell but I'd be interested to know if it's possible to separate the motor from the diff and make it much smaller.
You could start here:
User avatar
Bratitude
Posts: 1080
Joined: Thu Jan 02, 2020 7:35 pm
Location: Canada
Has thanked: 222 times
Been thanked: 413 times
Contact:

Re: Toyota MGR Rear Traction Transaxle

Post by Bratitude »

went for a trip through a local wrecking yard, and wow so much ev and hybrid stuff now!

Came across what looks like to be next gen Toyota mgr units
IMG_8058.jpeg
IMG_8059.jpeg
https://bratindustries.net/ leaf motor couplers, adapter plates, custom drive train components
User avatar
Mouse
Posts: 140
Joined: Wed Sep 25, 2019 8:17 am
Location: Wales
Has thanked: 1 time
Been thanked: 7 times
Contact:

Re: Toyota MGR Rear Traction Transaxle

Post by Mouse »

Did it follow you home?
User avatar
tom91
Posts: 2753
Joined: Fri Mar 01, 2019 9:15 pm
Location: Bristol
Has thanked: 264 times
Been thanked: 717 times

Re: Toyota MGR Rear Traction Transaxle

Post by tom91 »

rear toyota prius motor has a dedicated inverter. Interesting. However very low performance specs, likely due to indented purpose of low speed awd.

https://priuschat.com/threads/prius-awd ... re.202285/

EDIT: My bad this is an old prius not the 2023. will look for right specs.

This say 30kw unit https://www.guideautoweb.com/en/makes/t ... mited-awd/

Here some nice specs and pictures https://toyota-club.net/files/faq/19-10 ... wd_eng.htm
Creator of SimpBMS
Founder Volt Influx https://www.voltinflux.com/
Webstore: https://citini.com/
Post Reply