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Power Splitting


God666

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Thanks for the info Raptor, greatly appreciated.

I'm still having trouble creating a mental picture of what you described however, given your info, I now have the basis from which to do a bit more searching.

Cheers,

God666. :spoton:

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The torque split is similar to a few other AWD vehicles that started off as rear wheel drive chassis. Incidentally, the DSC system effectively acts as a system to distribute torque in certain conditions by braking the wheel that has the least traction. If the wheel is braked individually, the torque is still present and is redistributed to the other wheels.

The Territory doesn't have any limited slip differentials either - the diffs are all open. If the DSC system didn't work the thing would simply spin one of the wheels on soft sand and sink...

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Found the answer:

DESCRIPTION AND OPERATION Transfer Case

Territory AWD vehicles are fitted with the NewVenture Gear NV125 Transfer Case. The NV125 is a full-time, permanent All Wheel Drive (AWD) transfer case with a fixed 32:68, Front : Rear torque split. TheNV125 transfer case has the following features-:

Permanent AWD.

Single Speed (I.e. No low range ratio).

Constant mesh centre differential with 38:62

torque split.

3/8" Pitch chain with 35 Tooth sprockets.

Splash lubrication via chain rotation.

Weight 23 kg.

The transfer case has no external controls and requires no input from the driver to operate. The unit contains a centre differential that allows permanent connection of the front and rear wheels to the driveline to achieve constant all wheel drive. The major components of the transfer case are-: the front case half; the rear case half; the planetary gearset; the main shaft; the input and output shafts;and the chain.

The front and rear cases are manufactured from cast aluminium. Both cases are bolted together and provide the bearing locations for the main shaft, drive sprocket, planetary gearset and front and rear output shafts. The front case assembly also houses the mounting bush, which is connected to the transmission cross-member when installed in the vehicle.

The transfer case receives torque from the transmission output shaft. The transmission output shaft is connected to the transfer case input shaft via a 38-tooth spline. Torque (62%) to the rear output is transmitted via the input shaft to the carrier (which carries the planet gears) then to the annulus (or ring gear), which is connected to the rear output shaft. Torque (38%) to the front output is transmitted via the input shaft to the carrier, then to the sun gear. The sun gear carries a 35-tooth drive sprocket, which drives the chain. The chain then drives another 35-tooth sprocket integral with the front output shaft. Because both sprockets have the same number of teeth, the rotational speed of the input shaft and front output shaft are the same.

The fixed torque ratio is arrived at by the leverage ratio of the annulus (ring) gear of the differential overthe sun gear.

NV125.jpg

(same image as above)

Item Description

1 Rear Output - 62% Torque

2 Sun Gear

3 Chain Drive to Front Output

4 Front Output - 38% Torque

5 Input - 100% Torque

6 Annulus or Ring Gear

Thanks Raptor for the headstart :spoton:

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  • 10 months later...
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The results on the turbo territory showed a typical requirement to raise initial boost for added torque but to reduce it as the revs increased to ensure safe injection duty cycle.

Result was a fantastic vehicle that leaves my 350 rwkw XR6T behind on wet roads, because it can simply be nailed and it goes without any fuss. EVEN IN CORNERS, just nail it and the stability system keeps it together and off you go. Although it does this so safely, you really have a drivers feel from the car due to the dynamics and rear torque bias.

The dual fuel multipoint sequential LPG injection system allows the best of all of this whilst making the car cheap on fuel to rival a Corrolla's fuel costs!!!!

Great Aussie production, because where else in the world could you create a total package such as this vehicle?

Check out the power graph showing torque split during power ramp.

post-12062-1181465408_thumb.jpg

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  • No boost, no bottle, just my foot on the throttle!
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Pity it does not have front and real LSD's

That would make them hangon. Mine tends to spin one wheel when turning on a slippery surface.

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