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Old 09-08-2019, 08:24 PM
 
Location: AZ
2,379 posts, read 497,782 times
Reputation: 1043

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Quote:
Originally Posted by mtl1 View Post
You should first prove your claims or GTFO.
The onus is on you, the poster that originally made the statements.

You’ve yet to provide proof for anything, and insist that your lies are the factual.

So again, where’s your evidence?
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Old 09-08-2019, 08:30 PM
 
82 posts, read 12,843 times
Reputation: 54
Quote:
Originally Posted by mtl1 View Post
It is not really a CVT it has a planetary gear set https://auto.howstuffworks.com/hybrid-car7.htm
I've familiar with them. I've taken them apart and put them back together. The planetary gear set is a CVT. It's a continuous variable transmission that allows for to power inputs (ice + motor). Your source even mentions this.
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Old 09-08-2019, 08:40 PM
 
13,685 posts, read 4,203,242 times
Reputation: 4093
Quote:
Originally Posted by BentBot View Post
I've familiar with them. I've taken them apart and put them back together. The planetary gear set is a CVT. It's a continuous variable transmission that allows for to power inputs (ice + motor). Your source even mentions this.
The Prius transmission provides variable speed ratios but through a planetary gearbox and electric motor but a planetary gearbox is what a conventional automatic uses. A normal CVT uses pulleys and a belt to provide variable speed which leads to problems.
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Old 09-08-2019, 08:50 PM
 
82 posts, read 12,843 times
Reputation: 54
Quote:
Originally Posted by mtl1 View Post
The Prius transmission provides variable speed ratios but through a planetary gearbox and electric motor but a planetary gearbox is what a conventional automatic uses. A normal CVT uses pulleys and a belt to provide variable speed which leads to problems.
Toyota isn't the only manufacturer to have a CVT that uses gears. GM does as well (a joint venture between GM, Daimler, Chrysler and BMW. One of the reason the Prius is so reliable is due to its CVT.

A good example of CVTs being not only reliable (in this case, more reliable than standard AT), but an innovation out of fuel efficiency that extended the life of vehicles.

Last edited by BentBot; 09-08-2019 at 09:35 PM..
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Old 09-08-2019, 09:54 PM
 
82 posts, read 12,843 times
Reputation: 54
Quote:
Originally Posted by thecoalman View Post
As a group they have decided to sell a much more expensive product to the entire country. You can't do that.
This is a good point. And it brings up the question of margins. If the automakers have agreed to have higher margins, then you have an antitrust case. We'll have to see whether the automakers will be gaining extra profits from this decision.
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Old 09-08-2019, 11:27 PM
 
39,961 posts, read 41,527,600 times
Reputation: 16605
Quote:
Originally Posted by BentBot View Post
> Electric Steering is more reliable due to fewer moving parts.

If you are referring to "drive by wire" systems those fewer moving parts provide a direct mechanical linkage between the steering wheel and the tires. Although it would be difficult to move if everything failed on the car at once you would still have steering.
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Old 09-08-2019, 11:33 PM
 
82 posts, read 12,843 times
Reputation: 54
Quote:
Originally Posted by thecoalman View Post
If you are referring to "drive by wire" systems those fewer moving parts provide a direct mechanical linkage between the steering wheel and the tires. Although it would be difficult to move if everything failed on the car at once you would still have steering.
"drive by wire" refers to the the link between the gas pedal and engine. It does not have anything to do with steering.
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Old 09-08-2019, 11:44 PM
 
39,961 posts, read 41,527,600 times
Reputation: 16605
Quote:
Originally Posted by BentBot View Post
This is a good point. And it brings up the question of margins. If the automakers have agreed to have higher margins, then you have an antitrust case. We'll have to see whether the automakers will be gaining extra profits from this decision.

It's nothing to do with margins, it's an anti-competitive practice. On that note these standards are fleet averages, as long as the car manufacturers sell a lot fuel efficient vehicles they can sell a lot of less efficient ones. To help achieve that they discount the fuel efficient vehicles. As the MPG standards go up the amount of these larger high priced vehicles available may dwindle, the necessity to discount the fuel efficient vehicles evaporates as the class of vehicles available narrows.
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Old 09-08-2019, 11:46 PM
 
39,961 posts, read 41,527,600 times
Reputation: 16605
Quote:
Originally Posted by BentBot View Post
"drive by wire" refers to the the link between the gas pedal and engine. It does not have anything to do with steering.

Ahhh but it's one way to remove weight and improve MPG. If these car makers can skim an ounce somewhere they are going to do it, that is worth at least ten pounds.
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Old 09-09-2019, 01:24 AM
 
Location: Round Rock, TX
2,868 posts, read 874,815 times
Reputation: 840
I would have rather have this in automotive


Anyways, today's cars anways don't use as much chemical component due to the rise of ecoboositng and computerization. Just open up the hood of any modern car and you'll see the turbo charging sensor makeup for at least 60% of the engine control unit. Hell, electrical assisted steering was supposed to reduce the need for so much power steering fluid and it kind of worked.

And if the car is naturally aspirated, I believe the CPU unit controls the engine with a 50/50 ratio of oil consumption.

I could be wrong, but that's why GDI has become more commonplace in the first place...
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