"I dread beyond all else the growth of the petty tyranny of restrictive legislation, the transference of disciplinary authority from the judiciary to the constabulary, the abandonment of every constitutional safeguard of individual liberty."
Yes...very interesting. I think he was probably inspired by an Acme-Gridley 6 spindle automatic lathe using a variable speed thread cutter head....very, very similar concept. He also has a good understanding of the way planetary gears work with automotive overdrive.
Driving a CVT transmission equipped car is strange at first, but you soon get used to it. Far superior to a "regular" automatic transmission. It also keeps the engine at its "sweet spot" for both rpm and torque, which makes the car really clip along. The D-Drive is certainly interesting...but is it marketable?
It would make doing wheelies very easy. I must say it sure would be strange to peg the throttle and have the engine just sit there and do 8000 rpm but the bike accelerates like the devil. Time will tell.
I can also see this transmission being retrofitted to nearly any vehicle. The unit is pretty well guaranteed to more compact than any standard or automatic transmission in production. The electronic control system that would be used to regulate the main sun gear to control the output shaft speed seems like it would be pretty simple compared to an average automatic transmission ECU.
It has many advantages over standard and automatic transmissions. The number of wear items has been reduced to a bare minimum. No clutch, no synchromesh, no shift forks, no main hydraulic pump, no shift valve body, no oil passages, no pressure relief valves to fail
What I like the most however is the simplicity and lack of reliance on hydraulic pressure to put power to the ground. Also looks easy to build it with a redundant control system as a backup. I think that's probably the achilles heel of the run of the mill automatic transmission, one little thing goes wrong and you've got five neutrals.
Now that I've thought about it, unfortunately this will probably never see the light of day because it's too efficient and too reliable. This transmission has the potential to last the life of the vehicle with proper maintenance. No wet clutch to contaminate the oil with particles.
Last edited by bottomfeeder; 05-16-2010 at 04:55 PM.
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Thanks DNA......I learn everything from your posts it seems.
and that is exactly why some automotive company will buy the patent and bury it in the deepest, darkest vault it has.It has many advantages over standard and automatic transmissions. The number of wear items has been reduced to a bare minimum. No clutch, no synchromesh, no shift forks, no main hydraulic pump, no shift valve body, no oil passages, no pressure relief valves to fail
Just like pharmaceutical companies will never tell anyone if they find the cure for cancer, aids, etc.
There is no money to be made in a cure, but a heck of a lot of money to be made in treatment.
"Honda = Boring, Suzuki = Wannabes, Yamaha = Poser, Ducati = Overated, BMW = Compensating, Aprilia = Insecure, Buell = BCIT business... go faKOffee." - PUREVIL