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#1
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New Veriable Speed transmission
I was out trying to look at a new car, and my wife took a liking to the
Jeep Crossover, with the two-pulley transmission. I am not new to this design, as I have been using this type of transmission/clutching in the snow machines. My concern is that I like simple. This system, unlike the snow machines, is using hydraulic components to move the second pulley. Has anyone had any experience with this type of drive on a larger vehicle? I would rather purchase the manual transmission, as it is a reasonably tried and tested design. Anyone have any input on these (good/Bad)? Thank you, Mike mlawrenc(at)gmail.com |
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#2
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New Veriable Speed transmission
mike wrote:
> I was out trying to look at a new car, and my wife took a liking to the > Jeep Crossover, with the two-pulley transmission. I am not new to this > design, as I have been using this type of transmission/clutching in the > snow machines. > My concern is that I like simple. This system, unlike the snow > machines, is using hydraulic components to move the second pulley. > > Has anyone had any experience with this type of drive on a larger > vehicle? > > I would rather purchase the manual transmission, as it is a reasonably > tried and tested design. > > Anyone have any input on these (good/Bad)? Various cars have used these over the years as well - at least one early Civic had CV (continuously variable) drive. |
#3
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New Veriable Speed transmission
Matt Ion wrote:
> mike wrote: > >> I was out trying to look at a new car, and my wife took a liking to the >> Jeep Crossover, with the two-pulley transmission. I am not new to this >> design, as I have been using this type of transmission/clutching in the >> snow machines. >> My concern is that I like simple. This system, unlike the snow >> machines, is using hydraulic components to move the second pulley. >> >> Has anyone had any experience with this type of drive on a larger >> vehicle? >> >> I would rather purchase the manual transmission, as it is a reasonably >> tried and tested design. >> >> Anyone have any input on these (good/Bad)? > > > Various cars have used these over the years as well - at least one early > Civic had CV (continuously variable) drive. And Subaru. Bill Putney (To reply by e-mail, replace the last letter of the alphabet in my address with the letter 'x') |
#4
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New Veriable Speed transmission
On Sat, 21 Oct 2006 21:51:44 GMT, Matt Ion >
wrote: >Various cars have used these over the years as well - at least one early Civic >had CV (continuously variable) drive. <snip> No Honda Civic ever had a CVT. |
#5
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New Veriable Speed transmission
"mike" > wrote in message s.com... > I was out trying to look at a new car, and my wife took a liking to the > Jeep Crossover, with the two-pulley transmission. I am not new to this > design, as I have been using this type of transmission/clutching in the > snow machines. > My concern is that I like simple. This system, unlike the snow > machines, is using hydraulic components to move the second pulley. > > Has anyone had any experience with this type of drive on a larger > vehicle? > > I would rather purchase the manual transmission, as it is a reasonably > tried and tested design. > Get the manual. Repair costs over the life of the car will be lower and the resale value when the car is older will be higher. Ted |
#6
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New Veriable Speed transmission
One of the reasons Volvo bought Dutch car maker DAF (gosh, was it the late 60s, or 70s) was to control DAF's patents on the CVT they had been using with success for some years......DAFs were small, light cars and in those days not many Euroboxes were available with automatic. If I remember, the DAF used centrifugal variable rate pulleys with rubber belts. With the low weight and power, the belts had a respectable life of 40,000 miles or some such between replacements. DAFs were rebadged as little Volvos, but don't think any were sent to the US. Assume that Volvo continued development of the concept and that is what is available in the Ford 500 since it is Volvo-based. Have never heard of any problems with modern units, although I can certainly remember the uneasy feeling of driving in early 60s Buicks with Super Turbine Drive.......waiting for them to shift (course, they never did). Guess you get used to it quick enough. Don't confuse Honda's CVCC Civic with CVT (wasn't it Compound Vortex Combustion Chamber or similar). early Euro automatics: Jos Lucas (The Prince of Darkness) had a magnetic transmission: somehow it shifted by applying electric current to different points in a tranny filled with some kind of ferrous powder which solidified when the juice was applied .....geees, does't that sound like a British idea? I think the first successful automatic sold in great numbers in Europe was the Warner Gear (Jaguar and many others) which oddly enough was developed for and with Studebaker. Didn't Citroen (sp?) have something called Citromatic. Hope DAF didn't called their's DAFamatic......that would be right up there with Dodge Gyromatic. Yeah - a boring Sunday morning with nothing better to do! |
#7
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New Veriable Speed transmission
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#8
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New Veriable Speed transmission
"Bill Putney" > wrote in message ... > Matt Ion wrote: >> mike wrote: >> >>> I was out trying to look at a new car, and my wife took a liking to the >>> Jeep Crossover, with the two-pulley transmission. I am not new to this >>> design, as I have been using this type of transmission/clutching in the >>> snow machines. >>> My concern is that I like simple. This system, unlike the snow >>> machines, is using hydraulic components to move the second pulley. >>> >>> Has anyone had any experience with this type of drive on a larger >>> vehicle? >>> >>> I would rather purchase the manual transmission, as it is a reasonably >>> tried and tested design. >>> >>> Anyone have any input on these (good/Bad)? >> >> >> Various cars have used these over the years as well - at least one early >> Civic had CV (continuously variable) drive. > > And Subaru. > I believe there were plenty of problems with the Subaru. But that was a while ago and hopefully bugs were worked out. |
#9
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New Veriable Speed transmission
Itsfrom Click wrote: > One of the reasons Volvo bought Dutch car maker DAF (gosh, was it the > late 60s, or 70s) was to control DAF's patents on the CVT they had been > using with success for some years......DAFs were small, light cars and > in those days not many Euroboxes were available with automatic. If I > remember, the DAF used centrifugal variable rate pulleys with rubber > belts. With the low weight and power, the belts had a respectable life > of 40,000 miles or some such between replacements. Yup. > > DAFs were rebadged as little Volvos, but don't think any were sent to > the US. Assume that Volvo continued development of the concept and that > is what is available in the Ford 500 since it is Volvo-based. There is one in Wichita I know of and a early 60s DAF Dafodil here in Kansas City. > > Have never heard of any problems with modern units, although I can > certainly remember the uneasy feeling of driving in early 60s Buicks > with Super Turbine Drive.......waiting for them to shift (course, they > never did). Guess you get used to it quick enough. > > Don't confuse Honda's CVCC Civic with CVT (wasn't it Compound Vortex > Combustion Chamber or similar). > > early Euro automatics: Jos Lucas (The Prince of Darkness) had a > magnetic transmission: somehow it shifted by applying electric current > to different points in a tranny filled with some kind of ferrous powder > which solidified when the juice was applied .....geees, does't that > sound like a British idea? It was actually a French idea and was on Renaults. many were imported here. Those still in existence tend to be ones converted to electric cars. The mag powder clutch was not retained. I think the first successful automatic sold > in great numbers in Europe was the Warner Gear (Jaguar and many others) > which oddly enough was developed for and with Studebaker. A ****box. It's the reason half or more V8 Jag swaps were done. Didn't > Citroen (sp?) have something called Citromatic. Yes, a nightmare. |
#10
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New Veriable Speed transmission
"Itsfrom Click" > wrote >....DAFs were small, light cars and > in those days not many Euroboxes were available with automatic. If I > remember, the DAF used centrifugal variable rate pulleys with rubber > belts. With the low weight and power, the belts had a respectable life > of 40,000 miles or some such between replacements. The other significant thing was thatDAFs were Dutch. Holland has virtually no hills, which was crucial to the success of these early CVTs, since they would soon burn out otherwise. I recently test drove a CVT Caliber, and am looking seriously at a CVT Compass as a replacement for my Focus. I really liked the CVT on the Caliber. Some people say they feel sluggush, but that's just an illusion caused by the lack of any shifts. In fact they go like stink because the engine gets up on the cam and stays there, pumping out max hp in a steady stream. Ford is putting them in the 500 and Freestyle, Nissan in the Murano, and they're common in Europe. Based on my test drive, I think they're the wave of the future if they prove reliable, which I think is likely because they're basically very simple. And if you look at their cost as an option in the Caliber and Compass, they're about the same price as the regular 4-speed Chrysler automatic. |
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