New Gearbox Shifts In Zero Milliseconds!
09-29-2005, 06:36 PM
#91
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Join Date: Sep 2003
Location: Charlotte, NC
Posts: 1,357
Re: New Gearbox Shifts In Zero Milliseconds!
Give me my good old manual. Rowing through the gears never gets old. Pretty soon cars will drive themselves and all the fun of it will be gone. Long live the manual.
Last edited by buzz12586; 09-29-2005 at 06:56 PM.
04-28-2006, 10:02 AM
#93
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Join Date: Sep 1998
Location: Memphis
Posts: 4,338
Re: New Gearbox Shifts In Zero Milliseconds!
More than two years has gone by since the member Zeroshift joined this website and spread a bunch of hype saying more or less, 'just wait and see'.
Well, I'd say 2+ years is waiting enough.
I'm ready to say this technology isn't ever going to end up in OEM vehicles. Maybe as a niche market mod, but that's about it.
Well, I'd say 2+ years is waiting enough.
I'm ready to say this technology isn't ever going to end up in OEM vehicles. Maybe as a niche market mod, but that's about it.
04-28-2006, 10:31 AM
#94
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Join Date: Aug 2002
Location: Indianapolis, IN
Posts: 3,650
Re: New Gearbox Shifts In Zero Milliseconds!
Hmmm, the revival of this old, old thread prompted me to go to the website (www.zeroshift.com). There is definitely more content there than the last time I looked. There is a "demo video" that shows an '05 Mustang V6 that apparently has the technology, though it isn't extremely detailed. Worth taking a look at.
03-14-2007, 11:44 AM
#96
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Thread Starter
Join Date: Oct 2003
Location: Jupiter, FL
Posts: 1,647
Happy Anniversary! 
Looks like they're still moving along... slowly...
http://www.zeroshift.com/
The water test video is pretty neat.
Looks like they're still moving along... slowly...
http://www.zeroshift.com/
The water test video is pretty neat.
03-14-2007, 12:09 PM
#97
Registered User
Join Date: Jul 1999
Location: Stafford, Va
Posts: 455
Happy Anniversary!
Looks like they're still moving along... slowly...
http://www.zeroshift.com/
The water test video is pretty neat.
Looks like they're still moving along... slowly...
http://www.zeroshift.com/
The water test video is pretty neat.
still kinda cool.
03-14-2007, 12:44 PM
#102
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Join Date: Sep 1998
Location: Memphis
Posts: 4,338
Their website states (and has stated since February 2004)
"It is reasonable to expect that in 10 years time every car will be built with a gearbox operating in the ZeroShift principle"
Whelp, 3 years down, 6 years 10.5 months to go, guys.
So far there are 53 recent (2000+ MY) car models sold around the world with CVT/IVT transmissions as standard or optional with the most powerful being found in the Lexus LS600h flagship car with 450hp and AWD.
None with ZeroShift.
03-14-2007, 12:59 PM
#103
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Join Date: Sep 1998
Location: Memphis
Posts: 4,338
Originally Posted by Wikipedia article
A problem with the system is that when the transmission instantly shifts between 1st and 2nd gear, the engine, flywheel, and clutch will be spinning at a higher speed than the drive shaft, resulting in a large amount of inertia that must be relieved abruptly across the drive train.
One solution that Zeroshift is currently investigating is to automatically slip the clutch as the gear is changed, in order to stop engine torque transmission and to compensate for the extra inertia by 'dumping' it into the drivetrain. Currently the Zeroshift system is envisaged as a paddle-operated sequential manual transmission. However it could be implemented as a manual stick-controlled transmission where the clutch is used for manual control in low-speed manoeuvres but gearshifts are made without the clutch.
One solution that Zeroshift is currently investigating is to automatically slip the clutch as the gear is changed, in order to stop engine torque transmission and to compensate for the extra inertia by 'dumping' it into the drivetrain. Currently the Zeroshift system is envisaged as a paddle-operated sequential manual transmission. However it could be implemented as a manual stick-controlled transmission where the clutch is used for manual control in low-speed manoeuvres but gearshifts are made without the clutch.
03-14-2007, 03:19 PM
#104
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Join Date: Apr 2005
Location: North of Cincy
Posts: 824
So basically they've gone to all of this effort to eliminate any 'slip' involved in the shift process itself, and now realized slip has to be built in somewhere or else you'll kill the rest of your drivetrain. So they've defeated the majority of their purpose by adding complication and mostly ending up right back where they left off.
03-14-2007, 10:15 PM
#105
Registered User
Join Date: Jun 2001
Location: Calgary, AB, Canada
Posts: 169
So basically they've gone to all of this effort to eliminate any 'slip' involved in the shift process itself, and now realized slip has to be built in somewhere or else you'll kill the rest of your drivetrain. So they've defeated the majority of their purpose by adding complication and mostly ending up right back where they left off.
So basically, it's impossible to complete a shift in 0ms without damaging something.