Bernie,
Thanks for your explanation. I've read it about 4 times and will continue to do so till i feel I totally understand it. At which point I will try and work out how you can have a variable split front to rear considering the ratios of the gears are set due to being steel cogs.
So just to check.
Power is fed to the three planet gears from the regular gear box.
The annulus feeds the rear and the sun feeds the front.
The difference between the ratio between annulus and planet and the ratio between the planet and the sun make up the torque split.
Then after this the drive from the annulus and the sun are connected via a vicous coupling to ensure both rotate at the same speed (with obviously a small amount of slipage as the viscous coupling is not always locked)
Thanks very much for your explanation
Not sure if evos are your thing, if they are, how do you have a variable torque split front to rear without inducing slipage? Same question would apply to a subaru with a lever/nob that allows u to control the power split front to rear.
The diagram helped very much
Thanks
Steven RW