VW Golf GTE battery

Forum on Volkswagen related hardware, so VW, Audi, Seat, Skoda etc.
Post Reply
golfdubcrazy
Posts: 45
Joined: Thu Jan 28, 2021 6:15 pm

VW Golf GTE battery

Post by golfdubcrazy »

Hi All,

Heres some pics of the Golf MK7 GTE hybrid battery its 8.7kw watercooled. the bms communates to the battery modules thru canbus.

if any one has a golf GTE or Audi etron near London who wouldn't mind letting me plug my diagnostic into to get the canbus control messages would be mega helpful. i would like to control the linbus controlled ac compressor.
WhatsApp Image 2021-03-25 at 20.52.28 (3).jpeg
WhatsApp Image 2021-03-25 at 20.52.28 (2).jpeg
WhatsApp Image 2021-03-25 at 20.52.28 (1).jpeg
WhatsApp Image 2021-03-25 at 20.52.28.jpeg
arber333
Posts: 2408
Joined: Mon Dec 24, 2018 1:37 pm
Location: Slovenia
Contact:

Re: VW Golf GTE battery

Post by arber333 »

Anyone has any info on VW inverter and charger wiring from Golf GTE? HV and LV connector pinout would be appreciated.
I have them sitting here not doing their thing and that frustrates me :).
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

I have the same pack. Documented on the wiki. There's a dbc file there for the internal battery can bus.

What's missing the the balance command, it would be great if you did manage to get a car to plug your pack in to and charge, see if we can get a log during balancing
golfdubcrazy
Posts: 45
Joined: Thu Jan 28, 2021 6:15 pm

Re: VW Golf GTE battery

Post by golfdubcrazy »

Hi this is the pinout for the battery external connecter as near as i can figure.

External Pins GTE Battery and E-up
1 Can H Power
2 Can L Power
3 Airbag Crash
4 Pilot (In)
5
6 12v (30a)
7
8 IGN (15a)
9 GND
10 12v Safety (30a)
11 Pilot (out)
12 Airbag Crash
13 Can H Hybrid
14 Can L Hybrid


you need two 75ohm resistors on the pilot line to remove the safety errror
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

Stick any info you find on the wiki, might be useful to someone.
https://openinverter.org/wiki/VW_Hybrid_Battery_Packs
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

On the contactor control board, the left most white wire, and right moat white wire, do you have any clues as to what they are for? Maybe the safety interconnect? I butchered the cabling before checking where they go.
20210212_150822.jpg
The 2 reds next to it are 12v in, the black can low, white can high(battery can) the next black is GND, the black with a ring terminal had 5v on it, assuming it's used for some isolation tests?
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

The first white appears to be 12v ignition, give it 5v and the other 2 voltage regulators start spitting out 5v. Just one wire left to identify now.
boekel
Posts: 49
Joined: Mon Nov 25, 2019 4:37 pm

Re: VW Golf GTE battery

Post by boekel »

it would be great if these contactor control boards can be used on other projects!

I can arrange a few of these units if people want to play with them.
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

I've killed my contactor control board if you have any spare to play with.
boekel
Posts: 49
Joined: Mon Nov 25, 2019 4:37 pm

Re: VW Golf GTE battery

Post by boekel »

I have...let's see if the UK is ready for normal shipments :p
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

I don't think so :D PM me how much you want and paypal?
Ruudi S
Posts: 15
Joined: Sun Apr 12, 2020 2:02 pm
Location: EU Estonia
Contact:

Re: VW Golf GTE battery

Post by Ruudi S »

What are the dimensions of battery box?
golfdubcrazy
Posts: 45
Joined: Thu Jan 28, 2021 6:15 pm

Re: VW Golf GTE battery

Post by golfdubcrazy »

Ruudi S wrote: Sun Aug 15, 2021 6:41 pm What are the dimensions of battery box?
hi its 950 x 600 x 200mm with the bump on the top going upto 250mm
JaniK
Posts: 328
Joined: Sun Aug 25, 2019 12:39 pm
Location: Finland

Re: VW Golf GTE battery

Post by JaniK »

From 8:30, hammering of GTE cell module.
Any opinions are my own, unless stated otherwise. I take no responsibility if you follow my way of doing things and it doesn't work. Please double check with someone who knows what they are doing.
User avatar
EV_Builder
Posts: 902
Joined: Tue Apr 28, 2020 3:50 pm
Location: The Netherlands

Re: VW Golf GTE battery

Post by EV_Builder »

JaniK wrote: Mon Oct 04, 2021 4:41 am From 8:30, hammering of GTE cell module.
My finish is a bit rusty; what whas his conclusions?
Mine was that it needed quite some beating and heat before it catched fire...
Which chemistry is this?
JaniK
Posts: 328
Joined: Sun Aug 25, 2019 12:39 pm
Location: Finland

Re: VW Golf GTE battery

Post by JaniK »

About what you said..

Basilicly some main points in video are.

- Firemen should not sink an EV, but to get access straight to the heated / on fire modules from top of battery.

- The battery modules should not catch fire very easily and are designed to hold during crash.

The module in video should be with NMC chemistry and 12 x 25Ah cells in the module by Sanyo(Panasonic)
Any opinions are my own, unless stated otherwise. I take no responsibility if you follow my way of doing things and it doesn't work. Please double check with someone who knows what they are doing.
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

I've got a second pack to play with. I've been able to get the contactors to close from the hybrid can thanks to some logs from DomT177
Screenshot 2022-02-18 at 7.57.07 pm.png
This is the pinout of the external connector. To close the contactors 0x09C & 0x3A6 are needed on the hybrid can.
0x3A6 58 02 11 00 00 01 00 00 byte 1 (0 indexed) increaments to 0F and restarts, not yet sure if it cares about that. Byte 0 is always the same, so for 0x02 byte 0 will be 0x58.

https://github.com/DomT177/GolfGTE
snelly
Posts: 4
Joined: Sun Dec 26, 2021 11:54 am

Re: VW Golf GTE battery

Post by snelly »

Hi I have a 2021- AUDI VW CUPRA SKODA 1.4 TSI High Voltage Battery 3Q0804841 3Q0915754 A. pack and like to use it with out hacking it about in side..

has any body manage to crack the can bus data yet for full control i.e. contactors and bms?
User avatar
Bigpie
Posts: 737
Joined: Wed Apr 10, 2019 8:11 pm
Location: South Yorkshire, UK

Re: VW Golf GTE battery

Post by Bigpie »

From the outside, if you replay this log https://github.com/jamiejones85/GolfGTE ... _KeyOn.asc on the hybrid can bus the contactors will close. I didn't look any further though.
Post Reply