TOD controller - knob, wheel, or buttons?

[Tobert]

You can create parts lists for digi-key that are pretty much one-click to fill your cart if I understand properly. I've been eyeing the Megasquirt kit for a while now to mess around with but haven't had a vehicle I really wanted to mess with in a couple years.

http://www.megasquirt.info/
http://www.megasquirt.info/v3bom.htm

http://www.digikey.com/

This way you could source whatever parts you think are appropriate and anybody here can easily order them.

[darkl4805]

So basically the switch will let you choose TOD Off, TOD Auto, TOD 15/85, and TOD 50/50?

Is there a front differential? If not what happens to the built up tension?

Very cool work, put me down for one whenever you are done!

[Groovium]

Truly & duly groovy! Sign me up -- those long highway hauls on cruise control would benefit from the (properly elegant) cutout frobulator...

[mbeach]

You can create parts lists for digi-key that are pretty much one-click to fill your cart if I understand properly. http://www.digikey.com/

Digi-Key is one of my usual suppliers for work. I wanted to avoid too much "parts shopping" by the members -it just gets too confusing with similar part numbers and interchangeablity.

Is there a front differential? If not what happens to the built up tension?

There is a front differential. This part (2wd) of the mod will just prevent the TOD clutch from modulating. If the clutch provides no friction (and your front hubs are unlocked), there can be no torque sent to the front driveshaft. It might spin, but without resistance (either from the clutch or the wheels) there will be no torque. This is the fundamental principle that allows the TOD to work.
Example: You're driving some old rig with an open rear differential. You drop one rear tire into a hole, and the other is just hanging in the air. You're stuck. The tire that's in the air is just going to spin -until you apply the brakes a little. This brake friction will redistribute the torque to the wheel that needs it -the one in the hole. This technique (using the brakes -ABS- to modulate individual wheel torque) has been in use for a decade or more. Land Rover might still use it. The VX's TOD works on the same principle, but it's front to rear instead of side to side.

[ZEUS]

Hey mbeach, I don't mean to be pushy but I was curious about the progress you might have made on this invention of yours... Had any developments?