"Porsche Taycan’s Terrible EPA Electric Range Makes It the Least Efficient EV"

[paoester]

Originally Posted by BMWTurboDzl
I wish we knew why the range was reduced.
Electric motor tech design might be a big part of this. Then the power module's efficiency. Not many other places to blame. ... The batteries aren't at fault, they deliver the watts when needed, unless discharge heat (I2R) is excessive (some battery specialist can tell us if that's probable).

 

[JeffKeryk]

Originally Posted by BMWTurboDzl

I wish we knew why the range was reduced.

Only Porsche/Audi can answer that and they aren't talking.
Apparantly the range was reduced because they could not produce their forecasted numbers.
It is a tribute to what Tesla's engineering; even the mighty Porsche fell far short.
You have to believe, especially for that kinda $$, Porsche would have loved to bested Tesla's range superiority.
It boggles the mind.

 

[BMWTurboDzl]

Originally Posted by JeffKeryk
Originally Posted by BMWTurboDzl

I wish we knew why the range was reduced.

Only Porsche/Audi can answer that and they aren't talking.
Apparantly the range was reduced because they could not produce their forecasted numbers.
It is a tribute to what Tesla's engineering; even the mighty Porsche fell far short.
You have to believe, especially for that kinda $$, Porsche would have loved to bested Tesla's range superiority.
It boggles the mind.


Ya. Who knows. Proprietary tech is not cheap nor always the best performer.

 

[Mr Nice]

Looks are # 1 for these buyers.... distance / range is secondary.

 

[paoester]

Originally Posted by Mr Nice
Looks are # 1 for these buyers.... distance / range is secondary.
Tell that to all the people who cancelled their Taycan orders once range numbers came out. Wonder what % did cancel, as JeffKeryk reported above?


Originally Posted by JeffKeryk
Only Porsche/Audi can answer that and they aren't talking.
VAG can't hide it. .... Its there for all to analyze. .....The problem (high heat loss, lowered efficiency) areas are found with Munro ( https://www.greencarcongress.com/2019/05/2019031-munro.html ), Idaho National Labs, and/or NREL often study efficiency issues and aren't shy about telling about it.

Basically, watts in, then compared to watts out, of any individual component tells you where the losses are. For example, watts measured entering the motor (volt x amps), compared to torque x omega (watts) at the output shaft. Power modules similar, or else try to measure heat dump.

Uncovering the internal WHY is another matter. Somebody (Munro?) can take apart the motors side by side with a Tesla and tell us how advanced they are or not. It'll happen I'm hoping. ...
Even little things like whether or not VAG is using SiC MOSFETs or not can affect this. Actually, the structure might be more important. EE experts would know is about all I'm saying.

If you haven't seen a basic energy usage analysis on EVs, see https://avt.inl.gov/ . Interesting results. Not quite a Munro teardown.

 

[Pew]

Originally Posted by BMWTurboDzl
If the vehicle sells and they make money how is it inferior to Tesla?


It's an argument to make Tesla buyers think their cars are the best thing out since sliced bread.

Some Tesla owners want to make the argument that range doesn't matter since the majority of EV cars are used in an urban environment - and rightfully so that's where they would make the most sense. They get to commute to work and back and that's it - so why they're complaining about the range, who knows.

What's the battery pack size in the Taycan vs the Model S?

 

[UncleDave]

Originally Posted by BMWTurboDzl

If it sits in the garage and accumulates 5000 miles a year like what I imagine is a majority 911's then range probably isn't an issue.


When it comes to the Taycan - perhaps not.

The same can't be said of the E-tron which by and large uses the same componentry and delivered the same disappointments in range and charging speed.

VAG claims the reduction in range was to " protect the battery ".

Regardless after nearly a decade of " just wait and see" and spewing nearly mouth music both cars failed to live up to their promises- by a lot.

The Mex-stang KWH/Mile also shows the boys at Ford that although they may be better at coachbuilding - they arent better at EV powertrains than Tesla.