I wasn't thinking that through, the prop shaft is in the way.

Watching Damien working on his pickup gave me an idea.

If the conversation was on an Outback (Legacy) with it's greater ground clearance, is there enough room underneath to put a Leaf battery pack ?

Leaf stack was in my original plans (still haven't done anything) but now I am looking at using the Crosstrek plug in hybrid transmission.

I am still thinking of using Leaf batteries due to the variety of module sizes. Some under the bonnet, some in the fuel tank space and some in the spare wheel ...

Yes, I think it was just the diesel models at that time.

I have discovered that the Crosstrek plugin hybrid had never been sold in Britain or Europe.

We only get the basic hybrid with 16bhp motor.

This is what Damien Maguire has been doing with Lexus transmissions.



He has lots of videos and they are entertaining and informative.

I haven't yet found any model numbers for the hybrid transmissions.

Here is some info on the various types of diff used in the ICE transmissions.

https://m.awdwiki.com/en/subaru

It was the voltage requirements I was thinking about. I imagine that the Subaru hybrid would have to be powered by a battery with similar specs and not 48V or 800V set up, unless I want lots of smoke :-)

So for example, the Nissan Leaf pack is 92s (x 3.65V ?) gives 335V. Too much for the Subaru ...

Thank you.

I've not looked into how to match batteries with the inverter and motor(s).

Sorry for the dumb question but why does it invert to charge the battery ? I assumed it would be a charge controller managing that.

I'm guessing that it's not a simple process.

In hybrid one mg is used for starting the ICE and charging so I was trying to work out whether it draws on the inverter or not. It must do when starting the ICE but that's relatively short duration.

Does it have to power it to stop it dragging on the transmission ?

With MG1 and MG2 being used to drive, is the inverter sufficient or would a different one be needed ?

https://legacypic.uk/transmission/searc ... ty758v1aab

So it has a 3.7 diff and looks like it can handle more torque than the hybrid transmission can produce ~3300 lbft

The diesel puts out 258 lbft with these ratios

Main Transmission TY758V1AAB
First Gear Ratio  3.454:1
Second Gear Ratio 1.750:1
Third Gear Ratio 1.096:1
Fourth Gear Ratio 0.785:1
Fifth Gear Ratio  0.634:1
Final Drive Ratio 3.700:1

I discovered the Forester hybrid and wondered if it uses the same hybrid transmission. I couldn't find any info on it.

Nearly a year later and plans have changed although nothing has happened.

I've been watching Damien's videos (evBMW) particularly the ones with the Lexus gearbox which is very similar to the Subaru XV "Crosstrek" 4wd box with 2 motor generators.

The XV gearbox would be a much simpler solution than ...

According to https://mobile.guideautoweb.com/en/specifications/subaru/crosstrek/limited-hybrid-phev/2020/

The 2020-onwards Hybrid has a 118hp (88kW) motor.

Power 118 hp (88 kW)
Torque 149 lb·ft @ 1,500 rpm (202 N·m)

This looks like it's only the output of mg1 based on the video above.

If the ...

Does the electro-hydraulic clutch pack only engage when "switched on" or could it engage when there is differential rotation of the front and rear drives ? I am trying to figure out if it could just engage the ball-ramp without hydraulic pressure being applied ?


https://www.awdwiki.com/en/subaru

Thanks.

So if I was using a Lexus motor, it should be paired with its matching inverter but it could use Leaf batteries.

Does that also mean that it's not necessary to use all of the donor battery pack ? So if only 15 of the 16 modules fit it could still work ?

I see many builds mix components from different manufacturers, Tesla batteries, Lexus motors, etc.

I'm not an electronics engineer (physics and computer science degree a long time ago). How do you know which components will work together ?

For example the Leaf 62kWh pack is ~352V.

Should it ...

If this transmission was used in Subaru conversion, how difficult would it be to work out when to activate the rear drive clutch pack ?

I suppose something would have to monitor wheel slip and determine when to activate it. Not trivial.

Some useful Crosstrek (E Boxer) info in this thread
viewtopic.php?p=47401&hilit=Crosstrek#p47401

Last year I was pondering whether one of these starter-generator systems could be fitted to my Subaru diesel.

Nothing too sophisticated, just delivering power, regenerate or freewheel depending on throttle position and rpm.

Compared to a full EV conversion it would be relatively cheap.

The ...

I've watched that video a couple of times. The section from about 15min shows how various motor inputs affect the output. I'm not sure if locking the input would allow both MGs to drive the output.

Also, they don't seem to be available in Britain, I'm not sure if the XV e-boxer was sold in great ...

@bratitude
I have been watching some of Damiens YT videos on the Lexus transmission.

It made me curious about the Crosstrek gearbox that you suggested.

https://m.youtube.com/watch?v=QRMajgb8KiM

It's very clever, why did we not make auto boxes like this before using an ICE and a small electric ...