Porsche working on making SoH available to owners - Article

[Tooney]

Porsche’s global spokesperson for the Taycan, Mayk Wienkoetter, says the company is working on analysing state of health (SoH) and making the information available to owners, rather than keeping it contained within the onboard computer only for technicians to view

“It’s useful information … so I don’t see why not if it’s really possible in a reliable way to display the SoH of the car,” said Wienkoetter, adding that it made sense to make it available within the central infotainment screen.
. . .
Wienkoetter says early global data from the Taycan that’s been on sale since 2019 suggests battery degradation is much lower than engineers had originally forecast, something that correlates with comments and data released by other manufacturers, including Tesla.

“We’ve hardly seen a [Taycan] battery that has lost more than 5 per cent, 8 per cent (of its original capacity),” he said.

“We have one customer in France, he has driven 300,000 kilometres with his Taycan 4S … and his battery is well over 90 per cent (capacity), still.”
. . .
However, Wienkoetter says determining the state of health of an EV’s battery is complex and can be difficult to distill into one easily digestible number.

Loss of capacity, for example, is only one measurement of battery health, with others including the physical breakdown of materials within the battery, something that can lead to failure in the longer term.

In some ways it’s similar to star ratings applied to vehicle safety; buyers want something easy to understand, but once you delve into the details there can be big differences not made obvious by that simplified headline rating.

“Determining the SoH is quite a challenging business,” said Wienkoetter, who said simply plugging into the onboard diagnostics (OBD) could provide a broad spread of data.

“There are many tools that you can just plug into your OBD and they will give you one number [to determine battery state of health].

“If we look more thoroughly into the real SoH into the battery it’s quite a different number sometimes.”

He says the company is working on providing accurate and comparable data that provides a clear picture of battery health.
https://evcentral.com.au/mystery-so...-with-important-feature-few-others-can-offer/

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[WasserGKuehlt]

“We’ve hardly seen a [Taycan] battery that has lost more than 5 per cent, 8 per cent (of its original capacity),” he said.

They haven't seen mine ?.
(Dropped to 92 within a year, recovered to a now-steady 93.3. So he's technically correct, as 92 is not "more than 8".)

 

[Jasper4S]

So who on this website is this french dude with 300k km’s? Nice job!

 

[D00notD00d]

Deja Vu, April 2022:

https://newsroom.porsche.com/en/202...h-voltage-battery-reparation-sales-26854.html

“In order to meet its customers’ interest in the capacity and condition of the high-voltage battery, Porsche made early efforts to enable analysis for the Taycan in workshops using Porsche diagnostic equipment. Details of the readout process were sent out to Porsche Centres at the beginning of March 2022, enabling them to read out the data independently and send it to customers. Porsche also plans to offer an app solution that will enable customers themselves to find out the health status of their vehicle.”

How hard can it be to display this in PCM and/or Connect, with the caveat that it is a snapshot, an approximate figure.

 

[D00notD00d]

They haven't seen mine ?.
(Dropped to 92 within a year, recovered to a now-steady 93.3. So he's technically correct, as 92 is not "more than 8".)

Unless you have PCM in Privacy Mode, potentially, they’ve seen your logs. Log data was used to identify cars with faulty cells for the ARA4 recall.
My SofH, advised after that recall, 91%. 23,500 miles MY2021.

 

[Tooney]

Deja Vu, April 2022:

https://newsroom.porsche.com/en/202...h-voltage-battery-reparation-sales-26854.html

“In order to meet its customers’ interest in the capacity and condition of the high-voltage battery, Porsche made early efforts to enable analysis for the Taycan in workshops using Porsche diagnostic equipment. Details of the readout process were sent out to Porsche Centres at the beginning of March 2022, enabling them to read out the data independently and send it to customers. Porsche also plans to offer an app solution that will enable customers themselves to find out the health status of their vehicle.”

How hard can it be to display this in PCM and/or Connect, with the caveat that it is a snapshot.

Are you implying that owners should not believe what they read in Porsche press releases in 2022 and Porsche global spokesman quotes in 2024?
Tsk, tsk.

 

[Uknown]

They haven't seen mine ?.
(Dropped to 92 within a year, recovered to a now-steady 93.3. So he's technically correct, as 92 is not "more than 8".)

I think they count the full battery capacity not just usable in the 5 %… but I could be wrong.

 

[WasserGKuehlt]

Unless you have PCM in Privacy Mode, potentially, they’ve seen your logs. Log data was used to identify cars with faulty cells for the ARA4 recall.
My SofH, advised after that recall, 91%. 23,500 miles MY2021.

I must have missed adding a 'sarcasm' indicator; I wasn't questioning their technical ability to read this data remotely, just the smug proclamation that they "haven't seen" degradation in excess of 5-8 pct. We have a thread full of SoH measurements which show there is a drop of 7 (indicated) within a year.

I think they count the full battery capacity not just usable in the 5 %… but I could be wrong.

I suspect you're right. (And probably why they're dithering on making this data public. On one side, it must be fudged enough to not raise concerns, while on the other side needs to be trustworthy/official as it would be used in warranty claims.)

 

[Murph7355]

You can get this info using an OBD reader (thread referred to shows how).

Sounds like a load of corporate BS. They could provide this detail if they really wanted to. They could have it on the driver's display in one of the tubes if they really wanted to. But customer focus is lower on the list if priorities than profit.

I'd rather they said nothing than treat customers like patsies.

 

[WasserGKuehlt]

You can get this info using an OBD reader (thread referred to shows how).

It’s not official.

Sounds like a load of corporate BS. They could provide this detail if they really wanted to. They could have it on the driver's display in one of the tubes if they really wanted to. But customer focus is lower on the list if priorities than profit.

I'd rather they said nothing than treat customers like patsies.

It’s an answer to an inconvenient question, one which also acknowledges the concerns of an increasing part of consumers. It’s not going to be “the truth” or any such thing - it’s what they think is the most likely response to be received well. (You aren’t new to corporate speak, are you?)

 

[Fish Fingers]

I must have missed adding a 'sarcasm' indicator; I wasn't questioning their technical ability to read this data remotely, just the smug proclamation that they "haven't seen" degradation in excess of 5-8 pct. We have a thread full of SoH measurements which show there is a drop of 7 (indicated) within a year.


I suspect you're right. (And probably why they're dithering on making this data public. On one side, it must be fudged enough to not raise concerns, while on the other side needs to be trustworthy/official as it would be used in warranty claims.)

I find quotes like this annoying.

I bet they have seen loads over 5%.
So the quote should be (if true) 'they haven't seen degradation in excess of 8%'.

I actually think it's good news even if they are talking full battery capacity. Especially with the French owner doing over 300k km.

Just the quote is irksome. They may as well say about 1-8% if the figure is 8%.

Its like a 50 year old saying I have been alive for about 45 to 50 years.

Rant over

 

[Murph7355]

- it’s what they think is the most likely response to be received well. (You aren’t new to corporate speak, are you?)

All too familiar. I cannot stand it of any corporate.

Bit of honesty and transparency required.

 

[PedroJ]

I guess SoH parameter we can get from Car Scanner app via OBDii is not the degradation.
My last reading of SoH was around 92% afrer 40kkm, the real capacity is between 82 and 84kWh, maximum capacity I could ever count (distance x consumption / % used) was 86kWh. So the degradation (loss of capacity) is between 2 and 4,6%
Does SoH of 0% means 70% of original battery capacity (guarantee by Porsche)?

 

[RAHRCR]

This is a rabbit hole for sure. The moment a displayed SoH drops by one half of one percent, Porsche will have angry customers lined up at their dealerships with pitchforks demanding “justice”. No good can come from this….

 

[Manyana]

It’s amazing how much ”spin” we are subjected to everyday ?
Of course politicians are the best at it and they all seem to have armies of spin doctors on their payroll to assist.
Corps are no better!
Porsche should know better, I would think most Porsche owners are not dummies so don’t give us BS.

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