Prius C - Test Drive thoughts

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Old 27 Apr 2012, 06:28 pm   #21 (permalink)
Bruce Richmond
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Default Re: Prius C - Test Drive thoughts

On Apr 27, 7:20*am, News <N...@Group.Posts> wrote:
> On 4/26/2012 7:39 PM, Bruce Richmond wrote:
>
>
>
>
>
> > On Apr 26, 7:17 am, News<N...@Group.Name> *wrote:
> >> On 4/26/2012 12:33 AM, Bruce Richmond wrote:

>
> >>> On Apr 25, 4:10 pm, News<N...@Group.Name> * *wrote:
> >>>> On 4/25/2012 1:09 PM, Bruce Richmond wrote:

>
> >>>>> On Apr 24, 9:29 pm, News<N...@Group.Posts> * * *wrote:
> >>>>>> On 4/24/2012 7:22 PM, Bruce Richmond wrote:

>
> >>>>>>> On Apr 24, 10:02 am, News<N...@Groups.Post> * * * *wrote:
> >>>>>>>> On 4/24/2012 9:50 AM, bwilson4web wrote:

>
> >>>>>>>>> A little pricy, $23/each, I bought two, Toyota SAE papers discussing
> >>>>>>>>> the Prius c:

>
> >>>>>>>>> 2012-01-1017 - Development of the New THS-II Powertrain for Compact
> >>>>>>>>> Vehicles
> >>>>>>>>> 2012-01-0623 - Development of New Hybrid Transaxle for Sub-Compact-
> >>>>>>>>> Class
> >>>>>>>>> Vehicles

>
> >>>>>>>>> I don't know your technical background but I found both papers covered
> >>>>>>>>> my technical questions:

>
> >>>>>>>>> * * * o 1.5L engine with cooled exhaust gas recirculation- improves high-
> >>>>>>>>> power efficiency
> >>>>>>>>> * * * o 20 module battery - saves weight
> >>>>>>>>> * * * o important transaxle design changes - saves weight, volume, and
> >>>>>>>>> reduced noise
> >>>>>>>>> * * * o improved control laws - optimized for short trips

>
> >>>>>>>>> The 'Prius c' is in effect a refined version of the NHW11 (2001-03)
> >>>>>>>>> but 265 lbs lighter and the practicality of a hatchback. Acceleration
> >>>>>>>>> is not as fast as the 1.8L ZVW30 but it is still faster than
> >>>>>>>>> competing, compact cars.

>
> >>>>>>>>> Bob Wilson

>
> >>>>>>>> Sluggish, in my opinion.- Hide quoted text -

>
> >>>>>>>> - Show quoted text -

>
> >>>>>>> So don't buy one.

>
> >>>>>> Indeed, I fully intended to, but now won't.- Hide quoted text -

>
> >>>>>> - Show quoted text -

>
> >>>>> Guess that will teach me, huh? *With some dealers adding on extramark-
> >>>>> up just because they can, I'm sure the loss of the sale to you will
> >>>>> leave them devestated.

>
> >>>> Be sure to demand a discount. *And invest in spell-check.- Hide quoted text -

>
> >>>> - Show quoted text -

>
> >>> That's a good troll. *When you've got nothing go for the spelling
> >>> error.

>
> >> Troll? *Just helping you avoid a sluggish first-year model, and if not
> >> that, save a few bucks on rapacious dealer markups, which you seem
> >> unable to do for yourself.- Hide quoted text -

>
> >> - Show quoted text -

>
> > And where did I say that I couldn't avoid those markups, troll? *I
> > only said that some dealers were trying to make them. *Most would take
> > that as a suggestion to shop around and find one that sisn't play that
> > game. *Seems you have a reading comprehension problem.

>
> And you still have that spelling problem... *moron.- Hide quoted text -
>
> - Show quoted text -


That's a good troll. When you've got nothing go for the spelling
error.

[plonk]

  Reply With Quote
Old 27 Apr 2012, 07:19 pm   #22 (permalink)
News
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Default Re: Prius C - Test Drive thoughts

On 4/27/2012 7:28 PM, Bruce Richmond wrote:
> On Apr 27, 7:20 am, News<N...@Group.Posts> wrote:
>> On 4/26/2012 7:39 PM, Bruce Richmond wrote:
>>
>>
>>
>>
>>
>>> On Apr 26, 7:17 am, News<N...@Group.Name> wrote:
>>>> On 4/26/2012 12:33 AM, Bruce Richmond wrote:

>>
>>>>> On Apr 25, 4:10 pm, News<N...@Group.Name> wrote:
>>>>>> On 4/25/2012 1:09 PM, Bruce Richmond wrote:

>>
>>>>>>> On Apr 24, 9:29 pm, News<N...@Group.Posts> wrote:
>>>>>>>> On 4/24/2012 7:22 PM, Bruce Richmond wrote:

>>
>>>>>>>>> On Apr 24, 10:02 am, News<N...@Groups.Post> wrote:
>>>>>>>>>> On 4/24/2012 9:50 AM, bwilson4web wrote:

>>
>>>>>>>>>>> A little pricy, $23/each, I bought two, Toyota SAE papers discussing
>>>>>>>>>>> the Prius c:

>>
>>>>>>>>>>> 2012-01-1017 - Development of the New THS-II Powertrain for Compact
>>>>>>>>>>> Vehicles
>>>>>>>>>>> 2012-01-0623 - Development of New Hybrid Transaxle for Sub-Compact-
>>>>>>>>>>> Class
>>>>>>>>>>> Vehicles

>>
>>>>>>>>>>> I don't know your technical background but I found both papers covered
>>>>>>>>>>> my technical questions:

>>
>>>>>>>>>>> o 1.5L engine with cooled exhaust gas recirculation - improves high-
>>>>>>>>>>> power efficiency
>>>>>>>>>>> o 20 module battery - saves weight
>>>>>>>>>>> o important transaxle design changes - saves weight, volume, and
>>>>>>>>>>> reduced noise
>>>>>>>>>>> o improved control laws - optimized for short trips

>>
>>>>>>>>>>> The 'Prius c' is in effect a refined version of the NHW11 (2001-03)
>>>>>>>>>>> but 265 lbs lighter and the practicality of a hatchback. Acceleration
>>>>>>>>>>> is not as fast as the 1.8L ZVW30 but it is still faster than
>>>>>>>>>>> competing, compact cars.

>>
>>>>>>>>>>> Bob Wilson

>>
>>>>>>>>>> Sluggish, in my opinion.- Hide quoted text -

>>
>>>>>>>>>> - Show quoted text -

>>
>>>>>>>>> So don't buy one.

>>
>>>>>>>> Indeed, I fully intended to, but now won't.- Hide quoted text -

>>
>>>>>>>> - Show quoted text -

>>
>>>>>>> Guess that will teach me, huh? With some dealers adding on extra mark-
>>>>>>> up just because they can, I'm sure the loss of the sale to you will
>>>>>>> leave them devestated.

>>
>>>>>> Be sure to demand a discount. And invest in spell-check.- Hide quoted text -

>>
>>>>>> - Show quoted text -

>>
>>>>> That's a good troll. When you've got nothing go for the spelling
>>>>> error.

>>
>>>> Troll? Just helping you avoid a sluggish first-year model, and if not
>>>> that, save a few bucks on rapacious dealer markups, which you seem
>>>> unable to do for yourself.- Hide quoted text -

>>
>>>> - Show quoted text -

>>
>>> And where did I say that I couldn't avoid those markups, troll? I
>>> only said that some dealers were trying to make them. Most would take
>>> that as a suggestion to shop around and find one that sisn't play that
>>> game. Seems you have a reading comprehension problem.

>>
>> And you still have that spelling problem... moron.- Hide quoted text -
>>
>> - Show quoted text -

>
> That's a good troll. When you've got nothing go for the spelling
> error.
>
> [plonk]
>


An 'A' for spelling! On the topic, stay ignorant.
  Reply With Quote
Old 28 Apr 2012, 09:07 pm   #23 (permalink)
rjdriver
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  • Posts: n/a
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Default Re: Prius C - Test Drive thoughts


"News" <News@Groups.Post> wrote in message
news:jn8uor$8th$1@dont-email.me...
> On 4/25/2012 6:02 AM, rjdriver wrote:
>> "News"<News@Group.Posts> wrote in message
>> news:jn7k0u$u6m$1@dont-email.me...
>>> On 4/24/2012 7:22 PM, Bruce Richmond wrote:
>>>> On Apr 24, 10:02 am, News<N...@Groups.Post> wrote:
>>>>> On 4/24/2012 9:50 AM, bwilson4web wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>> A little pricy, $23/each, I bought two, Toyota SAE papers discussing
>>>>>> the Prius c:
>>>>>
>>>>>> 2012-01-1017 - Development of the New THS-II Powertrain for Compact
>>>>>> Vehicles
>>>>>> 2012-01-0623 - Development of New Hybrid Transaxle for Sub-Compact-
>>>>>> Class
>>>>>> Vehicles
>>>>>
>>>>>> I don't know your technical background but I found both papers
>>>>>> covered
>>>>>> my technical questions:
>>>>>
>>>>>> o 1.5L engine with cooled exhaust gas recirculation - improves
>>>>>> high-
>>>>>> power efficiency
>>>>>> o 20 module battery - saves weight
>>>>>> o important transaxle design changes - saves weight, volume, and
>>>>>> reduced noise
>>>>>> o improved control laws - optimized for short trips
>>>>>
>>>>>> The 'Prius c' is in effect a refined version of the NHW11 (2001-03)
>>>>>> but 265 lbs lighter and the practicality of a hatchback. Acceleration
>>>>>> is not as fast as the 1.8L ZVW30 but it is still faster than
>>>>>> competing, compact cars.
>>>>>
>>>>>> Bob Wilson
>>>>>
>>>>> Sluggish, in my opinion.- Hide quoted text -
>>>>>
>>>>> - Show quoted text -
>>>>
>>>> So don't buy one.
>>>
>>> Indeed, I fully intended to, but now won't.

>>
>> It's 10.5 second 0-60 time won't win any drag races. But as cars in
>> general
>> go, it's got plenty of company at that rate, and as small compacts go,
>> unassisted by super or turbo chargers, it's better than some. Hope you
>> test
>> drove it without ECO mode on. That dampens the pedal response.
>>
>> And as I mentioned previously, the CV transmission can be decepetive. It
>> just doen't give you that "kicking into gear" surge feeling you get with
>> other tranmissions. The car *is* accelerating, and you *will* get up to
>> highways speeds in plenty of time on the entrance ramps, but you will not
>> have that same feeling your looking for. A turbocharged Golf TDI might
>> be
>> more suitable for you. You'll still get 50 mpg, but with the turbo and a
>> normal transmission, at will do 0-60 in about 8 seconds. I had my
>> choices
>> narrowed down to that and the C, but found the Golf lacking in some
>> critical
>> areas.

>
>
> The CVT hunted incessantly and evidenced significant hysteresis.
>
> The typical automatic slushbox has more positive feedback.


CVTs don't hunt. At least not in a way you should notice. If they
do, then something is wrong. They slide. And any hunting due to road
conditions and driver input should not be be perceptible. And a CVT will
never give you the kind of feedback you are used to, at least not with an
engine this small. I have driven my C for three weeks now, and there is no
hunting. As for your other complaint, if you did your test drive with ECO
mode on (salesman should have known better), that would require much more
pedal travel to get a response then if it was off. That kind of delay or
lag could easily be defined as hysteresis.

If you found anything to like in this vehicle at all, then I would go
back and drive it again. This time, tell the salesman you need to expience
it as it will be in real life, with just your weight in the vehicle, and no
passenger. Then, make sure ECO mode is off, and give it a real work out. I
did an informal 0-60 test today and counted it at 9 seconds. This may not
be the car for you, but somehow, I don't think you have seen it's full
potential yet.

Bob


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Old 29 Apr 2012, 01:27 pm   #24 (permalink)
Marilyn & Bob
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  • Posts: n/a
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Default Re: Prius C - Test Drive thoughts

On 4/28/2012 10:07 PM, rjdriver wrote:
> "News"<News@Groups.Post> wrote in message
> news:jn8uor$8th$1@dont-email.me...
>> On 4/25/2012 6:02 AM, rjdriver wrote:
>>> "News"<News@Group.Posts> wrote in message
>>> news:jn7k0u$u6m$1@dont-email.me...
>>>> On 4/24/2012 7:22 PM, Bruce Richmond wrote:
>>>>> On Apr 24, 10:02 am, News<N...@Groups.Post> wrote:
>>>>>> On 4/24/2012 9:50 AM, bwilson4web wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> A little pricy, $23/each, I bought two, Toyota SAE papers discussing
>>>>>>> the Prius c:
>>>>>>
>>>>>>> 2012-01-1017 - Development of the New THS-II Powertrain for Compact
>>>>>>> Vehicles
>>>>>>> 2012-01-0623 - Development of New Hybrid Transaxle for Sub-Compact-
>>>>>>> Class
>>>>>>> Vehicles
>>>>>>
>>>>>>> I don't know your technical background but I found both papers
>>>>>>> covered
>>>>>>> my technical questions:
>>>>>>
>>>>>>> o 1.5L engine with cooled exhaust gas recirculation - improves
>>>>>>> high-
>>>>>>> power efficiency
>>>>>>> o 20 module battery - saves weight
>>>>>>> o important transaxle design changes - saves weight, volume, and
>>>>>>> reduced noise
>>>>>>> o improved control laws - optimized for short trips
>>>>>>
>>>>>>> The 'Prius c' is in effect a refined version of the NHW11 (2001-03)
>>>>>>> but 265 lbs lighter and the practicality of a hatchback. Acceleration
>>>>>>> is not as fast as the 1.8L ZVW30 but it is still faster than
>>>>>>> competing, compact cars.
>>>>>>
>>>>>>> Bob Wilson
>>>>>>
>>>>>> Sluggish, in my opinion.- Hide quoted text -
>>>>>>
>>>>>> - Show quoted text -
>>>>>
>>>>> So don't buy one.
>>>>
>>>> Indeed, I fully intended to, but now won't.
>>>
>>> It's 10.5 second 0-60 time won't win any drag races. But as cars in
>>> general
>>> go, it's got plenty of company at that rate, and as small compacts go,
>>> unassisted by super or turbo chargers, it's better than some. Hope you
>>> test
>>> drove it without ECO mode on. That dampens the pedal response.
>>>
>>> And as I mentioned previously, the CV transmission can be decepetive. It
>>> just doen't give you that "kicking into gear" surge feeling you get with
>>> other tranmissions. The car *is* accelerating, and you *will* get up to
>>> highways speeds in plenty of time on the entrance ramps, but you will not
>>> have that same feeling your looking for. A turbocharged Golf TDI might
>>> be
>>> more suitable for you. You'll still get 50 mpg, but with the turbo and a
>>> normal transmission, at will do 0-60 in about 8 seconds. I had my
>>> choices
>>> narrowed down to that and the C, but found the Golf lacking in some
>>> critical
>>> areas.

>>
>>
>> The CVT hunted incessantly and evidenced significant hysteresis.
>>
>> The typical automatic slushbox has more positive feedback.

>
> CVTs don't hunt. At least not in a way you should notice. If they
> do, then something is wrong. They slide. And any hunting due to road
> conditions and driver input should not be be perceptible. And a CVT will
> never give you the kind of feedback you are used to, at least not with an
> engine this small. I have driven my C for three weeks now, and there is no
> hunting. As for your other complaint, if you did your test drive with ECO
> mode on (salesman should have known better), that would require much more
> pedal travel to get a response then if it was off. That kind of delay or
> lag could easily be defined as hysteresis.
>
> If you found anything to like in this vehicle at all, then I would go
> back and drive it again. This time, tell the salesman you need to expience
> it as it will be in real life, with just your weight in the vehicle, and no
> passenger. Then, make sure ECO mode is off, and give it a real work out. I
> did an informal 0-60 test today and counted it at 9 seconds. This may not
> be the car for you, but somehow, I don't think you have seen it's full
> potential yet.
>
> Bob
>
>

Just want to point out the the Prius does NOT have a ContinuousVT. It
has an ECVT and ElectronicallyControlledVT (note the difference in what
the "C" stand for). It does not have a set of sliding gears, but the
computer controls (among other things) the ratio of the engine output
which goes to the drive-train or to the motor-generator. With the
motors either adding power to the wheels or sending power to the battery
(or both), it's obviously more complicated than that, but the bottom
line is that the Prius does not switch gears in the conventional or CVT
sense and therefore can never "hunt".
--
Peace,
bobJ
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Old 29 Apr 2012, 01:38 pm   #25 (permalink)
News
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  • Posts: n/a
  • User Status:


Default Re: Prius C - Test Drive thoughts

On 4/29/2012 2:27 PM, Marilyn & Bob wrote:
> On 4/28/2012 10:07 PM, rjdriver wrote:
>> "News"<News@Groups.Post> wrote in message
>> news:jn8uor$8th$1@dont-email.me...
>>> On 4/25/2012 6:02 AM, rjdriver wrote:
>>>> "News"<News@Group.Posts> wrote in message
>>>> news:jn7k0u$u6m$1@dont-email.me...
>>>>> On 4/24/2012 7:22 PM, Bruce Richmond wrote:
>>>>>> On Apr 24, 10:02 am, News<N...@Groups.Post> wrote:
>>>>>>> On 4/24/2012 9:50 AM, bwilson4web wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> A little pricy, $23/each, I bought two, Toyota SAE papers
>>>>>>>> discussing
>>>>>>>> the Prius c:
>>>>>>>
>>>>>>>> 2012-01-1017 - Development of the New THS-II Powertrain for Compact
>>>>>>>> Vehicles
>>>>>>>> 2012-01-0623 - Development of New Hybrid Transaxle for Sub-Compact-
>>>>>>>> Class
>>>>>>>> Vehicles
>>>>>>>
>>>>>>>> I don't know your technical background but I found both papers
>>>>>>>> covered
>>>>>>>> my technical questions:
>>>>>>>
>>>>>>>> o 1.5L engine with cooled exhaust gas recirculation - improves
>>>>>>>> high-
>>>>>>>> power efficiency
>>>>>>>> o 20 module battery - saves weight
>>>>>>>> o important transaxle design changes - saves weight, volume, and
>>>>>>>> reduced noise
>>>>>>>> o improved control laws - optimized for short trips
>>>>>>>
>>>>>>>> The 'Prius c' is in effect a refined version of the NHW11 (2001-03)
>>>>>>>> but 265 lbs lighter and the practicality of a hatchback.
>>>>>>>> Acceleration
>>>>>>>> is not as fast as the 1.8L ZVW30 but it is still faster than
>>>>>>>> competing, compact cars.
>>>>>>>
>>>>>>>> Bob Wilson
>>>>>>>
>>>>>>> Sluggish, in my opinion.- Hide quoted text -
>>>>>>>
>>>>>>> - Show quoted text -
>>>>>>
>>>>>> So don't buy one.
>>>>>
>>>>> Indeed, I fully intended to, but now won't.
>>>>
>>>> It's 10.5 second 0-60 time won't win any drag races. But as cars in
>>>> general
>>>> go, it's got plenty of company at that rate, and as small compacts go,
>>>> unassisted by super or turbo chargers, it's better than some. Hope you
>>>> test
>>>> drove it without ECO mode on. That dampens the pedal response.
>>>>
>>>> And as I mentioned previously, the CV transmission can be
>>>> decepetive. It
>>>> just doen't give you that "kicking into gear" surge feeling you get
>>>> with
>>>> other tranmissions. The car *is* accelerating, and you *will* get up to
>>>> highways speeds in plenty of time on the entrance ramps, but you
>>>> will not
>>>> have that same feeling your looking for. A turbocharged Golf TDI might
>>>> be
>>>> more suitable for you. You'll still get 50 mpg, but with the turbo
>>>> and a
>>>> normal transmission, at will do 0-60 in about 8 seconds. I had my
>>>> choices
>>>> narrowed down to that and the C, but found the Golf lacking in some
>>>> critical
>>>> areas.
>>>
>>>
>>> The CVT hunted incessantly and evidenced significant hysteresis.
>>>
>>> The typical automatic slushbox has more positive feedback.

>>
>> CVTs don't hunt. At least not in a way you should notice. If they
>> do, then something is wrong. They slide. And any hunting due to road
>> conditions and driver input should not be be perceptible. And a CVT will
>> never give you the kind of feedback you are used to, at least not with an
>> engine this small. I have driven my C for three weeks now, and there
>> is no
>> hunting. As for your other complaint, if you did your test drive with ECO
>> mode on (salesman should have known better), that would require much more
>> pedal travel to get a response then if it was off. That kind of delay or
>> lag could easily be defined as hysteresis.
>>
>> If you found anything to like in this vehicle at all, then I would go
>> back and drive it again. This time, tell the salesman you need to
>> expience
>> it as it will be in real life, with just your weight in the vehicle,
>> and no
>> passenger. Then, make sure ECO mode is off, and give it a real work
>> out. I
>> did an informal 0-60 test today and counted it at 9 seconds. This may not
>> be the car for you, but somehow, I don't think you have seen it's full
>> potential yet.
>>
>> Bob
>>
>>

> Just want to point out the the Prius does NOT have a ContinuousVT. It
> has an ECVT and ElectronicallyControlledVT (note the difference in what
> the "C" stand for). It does not have a set of sliding gears, but the
> computer controls (among other things) the ratio of the engine output
> which goes to the drive-train or to the motor-generator. With the motors
> either adding power to the wheels or sending power to the battery (or
> both), it's obviously more complicated than that, but the bottom line is
> that the Prius does not switch gears in the conventional or CVT sense
> and therefore can never "hunt".
> --
> Peace,
> bobJ



Perhaps not by design, but the drive-feel is slushy, lacking feedback.
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Old 29 Apr 2012, 01:52 pm   #26 (permalink)
Elmo P. Shagnasty
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Default Re: Prius C - Test Drive thoughts

In article <jnk15m$unp$1@dont-email.me>,
Marilyn & Bob <privacy@nospam.please> wrote:

> Just want to point out the the Prius does NOT have a ContinuousVT. It
> has an ECVT and ElectronicallyControlledVT (note the difference in what
> the "C" stand for). It does not have a set of sliding gears, but the
> computer controls (among other things) the ratio of the engine output
> which goes to the drive-train or to the motor-generator.


Just want to point out that the Prius does have a continuously variable
transmission, which in form is exactly what you describe but in function
is a continuously variable transmission.

"CVT" does not by definition mean "variable width pullies and a belt".
It simply means that the transmission does not have stepped, discrete
gears.
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Old 29 Apr 2012, 08:59 pm   #27 (permalink)
Daniel who wants to know
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Default Re: Prius C - Test Drive thoughts

"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote in message
news:elmop-233A5E.14525329042012@news.eternal-september.org...
>
> Just want to point out that the Prius does have a continuously variable
> transmission, which in form is exactly what you describe but in function
> is a continuously variable transmission.
>
> "CVT" does not by definition mean "variable width pullies and a belt".
> It simply means that the transmission does not have stepped, discrete
> gears.


True, but the difference still needs to be pointed out as some see eCVT and
assume cone and belt, not a computer controlling the speed and direction
difference between 2 motor/generators attached to a planetary gearset.


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Old 30 Apr 2012, 05:09 am   #28 (permalink)
Elmo P. Shagnasty
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Default Re: Prius C - Test Drive thoughts

In article <jnkrmr$jtl$1@dont-email.me>,
"Daniel who wants to know" <me@here.edu> wrote:

> > "CVT" does not by definition mean "variable width pullies and a belt".
> > It simply means that the transmission does not have stepped, discrete
> > gears.

>
> True, but the difference still needs to be pointed out as some see eCVT and
> assume cone and belt, not a computer controlling the speed and direction
> difference between 2 motor/generators attached to a planetary gearset.


Eh. So?
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Old 30 Apr 2012, 05:42 am   #29 (permalink)
News
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  • Posts: n/a
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Default Re: Prius C - Test Drive thoughts

On 4/30/2012 6:09 AM, Elmo P. Shagnasty wrote:
> In article<jnkrmr$jtl$1@dont-email.me>,
> "Daniel who wants to know"<me@here.edu> wrote:
>
>>> "CVT" does not by definition mean "variable width pullies and a belt".
>>> It simply means that the transmission does not have stepped, discrete
>>> gears.

>>
>> True, but the difference still needs to be pointed out as some see eCVT and
>> assume cone and belt, not a computer controlling the speed and direction
>> difference between 2 motor/generators attached to a planetary gearset.

>
> Eh. So?



Exactly. High-tech electro-mechanical slush for the box.
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Old 30 Apr 2012, 11:45 am   #30 (permalink)
rjdriver
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Default Re: Prius C - Test Drive thoughts

On Apr 30, 6:42*am, News <N...@Group.Posts> wrote:
> On 4/30/2012 6:09 AM, Elmo P. Shagnasty wrote:
>
> > In article<jnkrmr$jt...@dont-email.me>,
> > * "Daniel who wants to know"<m...@here.edu> *wrote:

>
> >>> "CVT" does not by definition mean "variable width pullies and a belt"..
> >>> It simply means that the transmission does not have stepped, discrete
> >>> gears.

>
> >> True, but the difference still needs to be pointed out as some see eCVT and
> >> assume cone and belt, not a computer controlling the speed and direction
> >> difference between 2 motor/generators attached to a planetary gearset.

>
> > Eh. *So?

>
> Exactly. *High-tech electro-mechanical slush for the box.


I should not have used the word "slide" to refer to what happens in
the planetary gearset used in the Prius PSD (variable transmission).
Although it occurs smooth enough (except for News) to refer to it that
way. It's actually a very interesting way to transfer power between
multiple sources, and, as everything else in the Prius, is geared
towards (no pun intened) maximum efficiency and MPG.

Fascinating interactive animation here: http://eahart.com/prius/psd/

Make my slush cherry flavored, please



Bob
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