First true BEV tuning available? HGP-Turbo software for maximum battery performance / acceleration & raising Vmax speed limiter (for RS Etron-GT)

[Jhenson29]

Vivid has a Race Card Chip that essentially turns the 4S almost into a Turbo S for around $300.
I'm now doing a 0-60 mph in 3 Seconds.

I don’t think that’s how that works.

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[PCASSOO]

I have a Unlocked PCM on my Charger and you can Map things how you want.
I don't even think I would do that on my Porsche and I've done a lot. Lol
By the way I have all the Codes Cleared after the Steering wheel. ?
This thing Really Works...

 

[whitex]

Thanks, is this not just throttle pedal mapping as opposed to actually tuning vehicle output?

That is what their web page says (in a lot more fancy words). So it's a throttle
range mode, or chill mode for those familiar with Tesla.

Personally I would not want some 3rd party hardware remapping my throttle. Will they cover all damages should the car experience unintended acceleration because of their box malfunctioning and sending full throttle message to the car's ECU? A Taycan can definitely accelerate.

 

[Tsingtao]

Ok what are the part numbers?
Without a part difference that is just the Porsche marketing machine IMHO.

Your insight is eye-opening. I had read, and thought that I had understood, the HP difference between the Turbo and Turbo S to be attributable to two different inverters. But after reading your posts, it makes perfect sense that Porsche would throw the same inverters into the two variants and simply limit one with software. It is not fraudulent at all and makes sense from a manufacturing efficiency standpoint.

 

[Genau]

Your insight is eye-opening. I had read, and thought that I had understood, the HP difference between the Turbo and Turbo S to be attributable to two different inverters. But after reading your posts, it makes perfect sense that Porsche would throw the same inverters into the two variants and simply limit one with software. It is not fraudulent at all and makes sense from a manufacturing efficiency standpoint.

Huh? Porsche made a very specific claim about hardware differences between the models. This claim is verifiable by third parties (not to mention Taycan owners) who inspect the actual hardware installed in each model. Are you expecting us to believe that Porsche could succeed in such a fraud without being publicly exposed and financially penalized?

 

[Jhenson29]

Larger front power electronics on the Turbo S. My educated guess is they don't enable it all the time because it would reduce the lifetime of the battery.

Hmm, that got me thinking, maybe the battery was the limiting factor on HP and the main driver behind the 2-speed gearbox.

 

[whitex]

Hmm, that got me thinking, maybe the battery was the limiting factor on HP and the main driver behind the 2-speed gearbox.

Battery is definitely a limiting factor. Whether or not Porsche chose to design the power electronics and motors to only deliver the battery limit (due to cooling capabilities, max current carrying capabilities, etc), I don't know. In Teslas for example, the drivetrain is usually more capable than the battery.

 

[PCASSOO]

Not sure how the Taycan 4S Technically works but this Device Works. I'm normally a Charger Scat Pack guy and I Ordered the Jailbreak Charger (807 HP from the Factory)but Dodge Screwed me over twice on two different Orders without one phone call saying I'm sorry.
So I said "F" Dodge for a Charger costing over 100K when i already have one.
The Taycan 4S just happened to be sitting on the showroom floor. I honestly didn't even know Porsche made an Electric Car.
When I Drove it and hit 133 MPH on the onramp it was Over...
I Absolutely LOVE this car and Everything about it.
I LOVE it so much my Fabricating Buddy and Myself Started a New Business making Ground effects and the Rear Window Spoilers for the Taycan's.
Tha Taycan is an Amazing Vehicle...

 

[whitex]

Not sure how the Taycan 4S Technically works but this Device Works.

What exactly do you mean by "it works"? What difference(s) do YOU see as compared to before you had it?

 

[PCASSOO]

I had my 4S for a bit before I purchased the Race Card Chip.
You can feel it when you start your app on the phone and it Connects to the car. Better acceleration then normal, Better Battery life depending on what Mode you put it on.
You have 3 Modes to choose from.
Sport
Comfort and
Economy mode.

 

[Tsingtao]

Huh? Porsche made a very specific claim about hardware differences between the models. This claim is verifiable by third parties (not to mention Taycan owners) who inspect the actual hardware installed in each model. Are you expecting us to believe that Porsche could succeed in such a fraud without being publicly exposed and financially penalized?

Don't shoot the messenger! I was just commenting on Jenner's observation. VW Group's integrity, or lack thereof, has been well documented in the diesel-gate scandal and I would not put anything past them at this point. But on the subject of pulse inverters, like Jenner, I would like to hear from some of our EE brethren on the site who have in fact looked under the hood and compared the 300 AMP to the 600 AMP inverter. Maybe they are distinct; maybe the 600 AMP is a bigger, beefier model. Or perhaps the conspiracy theory is correct and they are the same piece of kit with software changes that allow the TTS to crap out a little more juice on launch. (Something analogous to the difference between adaptive cruise and innodrive.) If software is in fact the only difference, I think that TTS owners have for sure been duped into thinking that they purchased a more robust/expensive inverter rather than a few lines of computer code. Personally speaking, I have no freak'n idea how pulse inverters are made and whether Porsche could even use software to limit the amps on the Turbo, but it certainly seems plausible.

 

[Archimedes]

I had my 4S for a bit before I purchased the Race Card Chip.
You can feel it when you start your app on the phone and it Connects to the car. Better acceleration then normal, Better Battery life depending on what Mode you put it on.
You have 3 Modes to choose from.
Sport
Comfort and
Economy mode.

 

[DougFrisk]

... But on the subject of pulse inverters, like Jenner, I would like to hear from some of our EE brethren on the site who have in fact looked under the hood and compared the 300 AMP to the 600 AMP inverter. Maybe they are distinct; maybe the 600 AMP is a bigger, beefier model. ...

Here are the schematics for both from the Audi self learning document.

See if you can spot the difference. Apart from the heat dissipation, the parts don't need to be externally different. At 600 amps you're going to have to deal with about 9KW of heat at 300, about half that. (Based on the battery's 725 volt nominal voltage and the claimed 98% efficiency of the inverter.)

/Not an EE, but I do hang out with them on a regular basis.

 

[Jhenson29]

I have no freak'n idea how pulse inverters are made and whether Porsche could even use software to limit the amps

That’s basically happening all of the time. The accelerator pedal is basically setting a torque setpoint, which is controlled by limiting current. Not directly. It’s indirect. A higher level loop. But still there.

 

[Tsingtao]

Here are the schematics for both from the Audi self learning document.

See if you can spot the difference. Apart from the heat dissipation, the parts don't need to be externally different. At 600 amps you're going to have to deal with about 9KW of heat at 300, about half that. (Based on the battery's 725 volt nominal voltage and the claimed 98% efficiency of the inverter.)

/Not an EE, but I do hang out with them on a regular basis.

I'm not an EE either -- just drink with them and they always confuse me -- but based upon your schematics it would certainly appear that the Turbo's inverter is short on "bipolars" and therefore different than the TTS's inverter. Mystery solved, well done!

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