thinking of converting AWD Volvo XC90 without using transmission

8978 Views 9 Replies 7 Participants Last post by MickS66, 11 mo ago

prism

Discussion Starter · Dec 10, 2018

Hi,
I am a new member and this is my first post...please bear with me and go easy on my ambition here....
I want to convert my faithful, but beaten up, 2005 Volvo XC90 AWD SUV to electric. And I don't want to keep the transmission...want to connect directly to the drive shaft if I can. My aim is to have a range of minimum 100 miles (ideally 150) and highway capable. If I understand it right, this model has a curb weight o f about 4200 pounds. In connecting directly to the drive shaft, do I loose the AWD functionality of the car (if I am being illogical here, please bear with me). And also, would like to use the LiFexx batteries and not lead acid. Also, how does the car's computer system react to ripping off the transmission?
And what kind of budget am I staring at (rough ball park).

Thanks for your time.

Prism

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MickS66

· #8 · 11 mo ago

Isaac97 said:
If you want to retain AWD, you could use two Nissan Leaf motors - one for front and one for rear. Or two Prius motors (should be plenty of power with a pair of them).

Hi All,

I have a 2009 xc90 Sport diesel, and looking to do 2 stage conversion,
I love the car, and it covers all needs, including towing the caravan.

first to a hybrid, retaining the existing Diesel, and adding motor on the central axel, to keep all of the cars AWD functions.
The plan is to retain the engine and run on idle to drive the auxiliary kit, steering, brakes, heating / aircon etc, and also charge the battery.

Second later will be to remove the diesel all together and add a second motor to the gearbox input shaft.
As batteries get cheaper, this will become more practical.

there is ample room underneath for the prop shaft motor, and batteries and controller where the spare wheel would normally go (mine has no spare due to twin exhausts.)

I am a controls engineer by trade, and have ECU experience, so controls will be OK.

Has anyone actually done any work on the XC90 ? ?

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MickS66

· #10 · 11 mo ago

remy_martian said:
I doubt we'll see batteries get cheaper over the next decade or so.

Why do you need AWD? You have palm trees in SE England...

Hi remy,
No palm trees, only muddy fields, and a caravan on the back, hence the 4wd

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