Why are EV's listed as 'automatic'

Why are EV's listed as 'automatic'

Author
Discussion

TheDeuce

Original Poster:

21,759 posts

67 months

Wednesday 10th April
quotequote all
Obvious answer... because the system on every car database around the world requires a car to be listed as either manual or auto, for legacy reasons.

But it's been ten years+ now, shouldn't this be changed by now?

I ask partly because I was just asked by my insurance co if the car was an automatic (automatic what exactly confused) but also because I sometimes get asked if my electric car is automatic/has gears. I think referring to EV's as 'automatic' probably confuses a fair few laymen as to how an electric drivetrain works, what the benefits are of NO gears to shift, auto or otherwise.


(owner of Rivians and Taycans need not reply, I am aware your cars actually do have 'auto' boxes of a sort)



Dave.

7,382 posts

254 months

Wednesday 10th April
quotequote all
"Does it have a clutch pedal" would be a better question.

It's for those who only have automatic driving licences I believe.

IE, they can drive EVs as they only have 2 pedals like an automatic.

TheDeuce

Original Poster:

21,759 posts

67 months

Wednesday 10th April
quotequote all
Dave. said:
"Does it have a clutch pedal" would be a better question.

It's for those who only have automatic driving licences I believe.

IE, they can drive EVs as they only have 2 pedals like an automatic.
Specifically from a license pov, determining if the car has a clutch for manual gear shifting makes some sense.

But in all other ways it seems like it's just a lazy legacy term that needs updating. Or at least a more accurate "N/A" listing.

Especially when it's typically listed as "Transmission: Automatic", which is just plain incorrect. There's nothing to automate.

Dave.

7,382 posts

254 months

Wednesday 10th April
quotequote all
There's more to an automatic than just changing gears.... There's the "automatic" transferring of power from the engine to the wheels via the torque converter Vs the "manual" clutch to start and stop.


Pica-Pica

13,835 posts

85 months

Wednesday 10th April
quotequote all
It is about the driver’s actions and inputs, not about the intricacies of the transmission system. So, as said, the ‘does it have a clutch pedal?’ is the differentiation.

SWoll

18,453 posts

259 months

Wednesday 10th April
quotequote all
You don't need a manual license to drive it + EV's with automated gearboxes (Taycan/etron GT) mean it makes sense to refer to them as automatics IMHO.


Otispunkmeyer

12,611 posts

156 months

Wednesday 10th April
quotequote all
Does it matter?

For intents and purposes, you put it in D and you press the accelerator. End of. That experience is no different when compared to a DCT or Torque Converter automatic. Yes they have more gears but ultimately its "D" and go. So they should be listed as Auto for simplicity sake.

Rowe

315 posts

123 months

Wednesday 10th April
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"Is it an automatic Sir?"

<puts on anorak> "No it's a dual clutch transmission actually"

kambites

67,593 posts

222 months

Wednesday 10th April
quotequote all
As has been said the legal distinction is the existence of a manually operated clutch (it doesn't have to be via a pedal, a hand-clutch also counts as a manual). I guess the term "automatic" is used because at the time it was coined, there was really no realistic option to not have switchable gears at all but it really means "not manual".

There have been all sorts of weird things categories as "automatic gearboxes" over the years, including a few H-pattern manuals which happened to have an automated clutch.

_Hoppers

1,221 posts

66 months

Wednesday 10th April
quotequote all
TheDeuce said:
(owner of Rivians and Taycans need not reply, I am aware your cars actually do have 'auto' boxes of a sort)
You’d have thought that Porsche would do a manual version for the purists?!

croyde

22,974 posts

231 months

Wednesday 10th April
quotequote all
As an aside.....

Why then do Taycans have gears? Is it something additional to make them feel like a manual.

Bit like the big speaker under the electric Abarth smile

Caddyshack

10,853 posts

207 months

Wednesday 10th April
quotequote all
croyde said:
As an aside.....

Why then do Taycans have gears? Is it something additional to make them feel like a manual.

Bit like the big speaker under the electric Abarth smile
A motor will still have an effective rev range so having gears can give a torque multiplier or sit within the ideal rev range for the motor - that could be for economy or performance.

My Twizy has a reduction gearbox as the motor revs high but has low torque (for an ev)

SteBrown91

2,390 posts

130 months

Wednesday 10th April
quotequote all
croyde said:
As an aside.....

Why then do Taycans have gears? Is it something additional to make them feel like a manual.

Bit like the big speaker under the electric Abarth smile
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both

TheDeuce

Original Poster:

21,759 posts

67 months

Wednesday 10th April
quotequote all
SteBrown91 said:
croyde said:
As an aside.....

Why then do Taycans have gears? Is it something additional to make them feel like a manual.

Bit like the big speaker under the electric Abarth smile
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
Electric motors are fantastic at doing both - at least compared to anything else we have, such as steam, ICE, clockwork etc.

But there's always a limit. Not just a limit of the range the motor is efficient at, but also it's maximum design RPM. Although people are looking at digital motors for cars now, could offer 40,000rpm and remove any requirement for multi speed car gearboxes.

Murph7355

37,761 posts

257 months

Wednesday 10th April
quotequote all
SteBrown91 said:
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
This is why the Taycan has both wink



Caddyshack said:
...
My Twizy has a reduction gearbox as the motor revs high but has low torque (for an ev)
What model have you got and how do you find it?

I've always been intrigued by these and quite fancy one (with the top speed limiter moved).

Caddyshack

10,853 posts

207 months

Wednesday 10th April
quotequote all
Murph7355 said:
SteBrown91 said:
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
This is why the Taycan has both wink



Caddyshack said:
...
My Twizy has a reduction gearbox as the motor revs high but has low torque (for an ev)
What model have you got and how do you find it?

I've always been intrigued by these and quite fancy one (with the top speed limiter moved).
I have the 80 (that’s the bigger one) I also have a power box which doubles the torque, it does around 60mph on the flat and I have seen an indicated 73 downhill.

It is a great fun car, you can drive it like you are on a track day the whole time but stay within the law.

autumnsum

387 posts

32 months

Wednesday 10th April
quotequote all
SteBrown91 said:
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
The only reason the Taycan has 2 gears is because they were unable to match Tesla's engineering in terms of performance. Once they do, it'll be gone.

SWoll

18,453 posts

259 months

Thursday 11th April
quotequote all
autumnsum said:
SteBrown91 said:
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
The only reason the Taycan has 2 gears is because they were unable to match Tesla's engineering in terms of performance. Once they do, it'll be gone.
A single gear EV will always be compromised at high speed if also looking for the best low speed acceleration. With the 2 speed gearbox the Taycan Turbo with more weight and less power than a Model S Performance is able to match it over the 1/4 mile but walk away from it over 100mph. The Turbo S with similar power to the Tesla (and more weight) will beat it at both.



Caddyshack

10,853 posts

207 months

Thursday 11th April
quotequote all
SWoll said:
autumnsum said:
SteBrown91 said:
Taycan only has 2 gears (and think that’s only the higher performance cars) - think it’s to combine the sharp acceleration and top speed as generally electric motors aren’t great at doing both
The only reason the Taycan has 2 gears is because they were unable to match Tesla's engineering in terms of performance. Once they do, it'll be gone.
A single gear EV will always be compromised at high speed if also looking for the best low speed acceleration. With the 2 speed gearbox the Taycan Turbo with more weight and less power than a Model S Performance is able to match it over the 1/4 mile but walk away from it over 100mph. The Turbo S with similar power to the Tesla (and more weight) will beat it at both.
I believe the road tests also said the Porsche could repeat the performance tests many more times then the Tesla and the batteries needed no conditioning to do the performance tests etc.

I can imagine that we might actually see a time where a motor is matched to a gearbox with maybe 4 or more gears. It depends what motor technology develops.

The e bike world uses small motors run through the normal bike gears to great effect. I guess this means a smaller and lighter motor or maybe smaller batteries.

dxg

8,221 posts

261 months

Thursday 11th April
quotequote all
TheDeuce said:
Dave. said:
"Does it have a clutch pedal" would be a better question.

It's for those who only have automatic driving licences I believe.

IE, they can drive EVs as they only have 2 pedals like an automatic.
Specifically from a license pov, determining if the car has a clutch for manual gear shifting makes some sense.

But in all other ways it seems like it's just a lazy legacy term that needs updating. Or at least a more accurate "N/A" listing.

Especially when it's typically listed as "Transmission: Automatic", which is just plain incorrect. There's nothing to automate.
You can hear the gear change here, when it hits 124 km/h: https://youtu.be/AJ8JFfhn0Q8?si=PjcU6EYHG-T-295N&a...