Russian Revolutionary Hybrid car

[Dave Plowman (News)]

Thank you for such a scientific explanation. How many crocks to the tank?

[NT]

No, it was said the car ran at constant engine speed so I assumed a variable gear drive.

Nope :) I think the sample calculation demonstrated that pretty good. Double your engine speed, with only 80% the engine torque, and with the resulting change in gear ratio you end up with 1.6x as much torque at the roadwheel.

NT

[Doctor Drivel]

Any time.

[Jules Richardson]

Stupid boy.

[Doctor Drivel]

He is. Very stupid, but he is a jerry-hatrick.

[Dave Plowman (News)]

But not as much torque at the rear wheels as when the engine is producing maximum torque. In the same gear. Why is this so hard for you to understand?

[John Rumm]

We identify drivel with knobs as well...

[John Rumm]

I do accept that the prius has CVT - so does everyone else.

Its only you that seems to have difficulty comprehending that any system of continuously variable gearing between wheels and engine is CVT regardless of if there is an identifiable standalone gearbox labelled as such.

[John Rumm]

I knew someone who had the Volvo version of the DAF 66, and spent some time driving their car.

Odd thing it was - it actually worked ok, but you had to learn how to drive with its peculiarities in mind. Put your foot down hard, and it sort of ran out of revs at the middle of the range with the gearbox still in a lowish gear, at which point the transmission would start to "change up" and you could progress further. However accelerate hard, and then as you reached that point, lift the throttle a bit and the transmission would change up much quicker, and you could then reapply power and actually make faster progress by giving it little breathers from time to time!

[John Rumm]

As statements go, that's not even wrong.

A universal motor with brushes might have peak torque at zero revs, but that will not be an ideal motor for automotive use.

An induction motor has very little starting torque, but ample torque when running.

[Dave Plowman (News)]

Dribble only works by labels. Typical of one who doesn't understand how things work - and sadly likes it that way.

[John Williamson]

They *must* have seals round the circumference of the vanes where they meet the combustion chamber wall with a certain amount of movement, unless they can make a perfect seal at all temperatures between the vanes and the sides of the combustion chambers, which would mean that the materials would have to have a coefficient of thermal expansion of zero, and be capable of being machined with zero dimensional variation within each set of moving parts. Not almost perfect, but absolutely perfect.

[Steve Firth]

Bullshit. Starting Torque is less than Breakdown Torque. Breakdown Torque is achieved at about 75% of the maximum operating rpm. You were told this before but are apparently too dim to understand it.

[NT]

I never knew that either :)

[NT]

Ladas aren't a russian design, theyre simply Fiat 124s from the 1960s. And despite all the rubbish spoken about them, theyre an ok no frills car. Vehicle design has moved on for sure, they were fairly good in their day, now they're just an almost half century old design that's still being made, and the lack of ongoing development gives them a correspondingly low price.

NT

[Andy Champ]

This turns out not to be the case.

It's the speed at which you get the peak acceleration _in that gear_. You'll do better if you change down, and get to peak power instead.

Andy

[hugh]

Are these the same clever Ruskies who tried to copy Concorde?

[hugh]

I had a Daf 44 - brilliant little car, especially in snow.

[Fredxx]

Have you actually had one and compared it to a Fiat 124?

Yes the bodyshell is the same but that's about it. The front suspension is completely different as is the engine and gearbox.

It's easier to list the things that are the same rather than the differences.

[NT]

Then I stand corrected, they're a 70s design.

NT