I was here before! (Return visit)

Hello Markus,

Last year, my auxiliary heater in my Audi A4 B6 broke down. Since August of this year, I've been researching the issue and looking for a solution to build a CAN-bus adapter that could control a Thermo Top C analogously, as I suspect it might be more difficult to install a Thermo Top V, which is supposed to already have CAN-bus functionality. Since I come from a completely different industry regarding bus systems, I haven't had much experience with CAN-bus technology so far. I would like to participate in your project. My control unit for the original heater still works, and if someone could help me, I might be able to read the control unit or the bus itself. However, I need to know what hardware I would require. Which Thermo Top model were you planning to install in your Golf? I've also considered the possibility of bypassing the control unit from my old heater and connecting all the sensors so that the control unit thinks everything is okay and releases the water pump output, which I could then use to control the Thermo Top.
Sure, here is the translation of the text from German to English:

'LG' can be translated as 'Best regards' or 'Sincerely'. It is a common abbreviation for 'Liebe Grüße', which means 'Warm greetings' in English.

Jürgen.

Hello Jürgen,

ich wollte damals eine ThermoTop P in den Golf V CAN Integrieren.
Ziel wäre es gewesen, das Climatronicbedienteil entsprechend zu steuern.
The air vents, fan speed, and temperature should have been automatically adjusted.
The 'gateway' should have translated between the W-bus and CAN bus.

If there's a ThermoTop V that works with your A4, installation would be easier than building a gateway yourself.
I'm probably going to install a parking heater in my Golf next year, and I'll definitely use the appropriate ThermoTop V for the Golf V.
Due to lack of time, I probably won't build the gateway.

How did you envision controlling the ThermoTop C?
Via remote control, or do you have an instant heat button, or how does it work in the A4 B6?

Best regards,
Markus.'Gateway' was supposed to translate between the W-Bus and CAN.

If there's a ThermoTop V that works with your A4, installing it would be easier than building a gateway yourself.
I'm probably going to install a parking heater in my Golf next year, and I'll definitely use the appropriate ThermoTop V for the Golf V.
Due to lack of time, I probably won't build the gateway.

How did you envision controlling the ThermoTop C?
With a remote control, or do you have an instant heat button, or how does it work in the A4 B6?

Best regards,
Mark'If there's a ThermoTop V that works with your A4, the installation would be simpler than building a gateway.
I'm probably going to install a parking heater in my Golf next year, and I'll definitely use the appropriate ThermoTop V for the Golf V.
Due to lack of time, I probably won't build the gateway.

How did you envision controlling the ThermoTop C?
With a remote control, or do you have an instant heat button, or how does it work in the A4 B6?'

Best regards,
MarkI'll probably install a parking heater in the Golf next year, and I'll definitely use the appropriate ThermoTop V for the Golf V.
Due to lack of time, I probably won't build the gateway.

How did you envision controlling the ThermoTop C?
With a remote control, or do you have an instant heating button, or how does it work in the A4 B6?

Best regards,
Mark'Given the time I have, I probably won't be able to build the gateway.

How did you envision controlling the ThermoTop C? With a remote control, or do you have an instant heat button, or how does it work in an A4 B6?'

Best regards,
MarIs it controlled by a remote control, or does it have an instant heat button, or how does it work in the Audi A4 B6?

Regards,
MarkuBest regards,

Hello Markus,

In the B6, this is handled through the FIS (Flashing Information System). It sends the start command and everything the heater needs to the control unit via CAN bus. Then, I believe the control unit should report whether it's active or if there are any errors. Additionally, the control panel on the Climatronic activates. Since I don't know if the Thermo Top V installed in the A6 uses the same commands, and I already have a Thermo Top C here, I basically just need a gateway to convert it to analog signals. Audi wants 1200€ for that stupid heater, while the Thermo Top C is smaller, better, and cheaper. You can find the Thermo Top V at a reasonable price on **** for Golfs. You should check it out. Would you still be interested in such a project? I think there are enough people who had an original heater installed in their A4 back then and might be in the same situation as me now. Just use Google to see what's available about Ardic, a subsidiary of Eberspächer.

Best regards,

Jürgen.

Hello Markus,

schön das wieder aktivität vorhanden ist.

'Would you like to hear about my project?'enWould you like to tell me about your project?

Hello Jürgen,

Converter von CAN auf Analog gibts glaub ich nicht wirklich.
Sowas in der Art hätte dann mein Gateway auch gekonnt.
Basically, you don't necessarily need an analog solution.
What would be cool is a gateway between W-BUS and CAN, like the one I wanted to build.
In that case, communication would flow in both directions.
The guys have already identified the W-BUS components: <!-- m --><a class='postlink' href='http://libwbus.sourceforge.net'>http://libwbus.sourceforge.net</a><!-- m -->
I also basically have the CAN telegrams for the auxiliary heater at hand.
It mainly fails due to a lack of time.
I think people would be very interested in such a gateway.

@Patrick:
Here you can read a bit about my project from back then.
<!-- l --><a class='postlink-local' href='http://www.canhack.de/en/viewtopic.php?f=11&t=199#p857'>viewtopic.php?f=11&t=199#p857</a><!-- l -->
<!-- l --><a class='postlink-local' href='http://www.canhack.de/en/viewtopic.php?f=11&t=916#p2227'>viewtopic.php?f=11&t=916#p2227</a><!-- l -->

Best regards,
Markus.In this case, the communication would then flow in both directions.
The young people have already figured out the W-BUS: }}}}}
I also basically have the CAN telegrams for the auxiliary heater available.
It mainly fails due to a lack of time.
I think people would be very interested in such a gateway.

@Patrick:
Here you can read a little about my project from back then.
}}viewtopic.php?f=11&t=199#p857}}
}}viewtopic.php?f=11&t=916#p2227}}

Best regards,
MarkuThe boys have already figured out the W-BUS: }}}}}
I also basically have the CAN telegrams for the auxiliary heater.
It's mainly a lack of time that's holding things up.
I think people would be very interested in such a gateway.

@Patrick:
You can read a bit about my old project here.
}}viewtopic.php?f=11&t=199#p857}}
}}viewtopic.php?f=11&t=916#p2227}}

Best regards,
MarkuThe boys have already figured out which bus to take: }}}}}It really only fails due to a lack of time.
I think people would be eager to get their hands on something like that.

@Patrick:
Here you can read a little bit about my project from back then.
}}viewtopic.php?f=11&t=199#p857}}
}}viewtopic.php?f=11&t=916#p2227}}

Best regards,
Marku@Patrick:
Here, you can read a little bit about my project from back then.
}}viewtopic.php?f=11&t=199#p857}}
}}viewtopic.php?f=11&t=916#p2227}}

Best regards,
MarkBest regards,

Hello Markus,

'While the W-bus approach would be an interesting option, it would only work with Webasto systems. However, if someone chooses an Eberspächer system for any reason, it wouldn't function. Therefore, using an analog control method would be more practical. Perhaps we could also consider integrating a W-bus specifically for Webasto systems alongside the other features. What do you think? I've just ordered a CAN bus USB adapter to read the CAN signals from my A4 B6; it should arrive next week.'

Best regards,

Jürgen.

Hello.
Would you like to move this topic to the appropriate section? Then perhaps others with good ideas might also join in .
Have a good evening.

Jo, die Beiträge soll dann mal ein Mod oder der Admin trennen.
I would even go so far as to implement both the W-bus and the Eberspächer bus (if they use something like that).
You could then easily switch between them using a dip switch or jumper.

As I said, I'm interested, but I have very little time.

Best regards,
Markus.You could then conveniently switch it using a DIP switch or jumper.

As I said, I'd love to, but I hardly have any time.

Best regards,
MarkAs I said, I'd love to, but I barely have any time.

Best regards,
MarkuBest regards,

Hello Markus,

das wäre natürlich absolute Spitzenklasse. Da wir aber für sämtliche eventualitäten gerüstet werden sollten müßten wir trotzdem Analog noch mit einbinden. Ich denke hier ganz speziell an die VAg Speziallösungen wo in ältere Can-Bus fahrzeuge drin sind, eben in meinem A4. Also würde ich sagen W-Bus, Analog und falls wirklich eberspächer ein Bus ein setzt was ich derzeit nicht kenne können wir den auch noch einbinden. Die Hydronic II wird jeweils aufs Fahrzeug mit Can-Bus integriert. Ich denke wir bekommen das schon irgendwie hin und bestimmt gibt es hier noch ein paar User die gerne bei einem solchen Projekt mitmachen würden oder? Wwould please me.
freuen wenn noch andere zwecks Can-Bus befehle für Fahrzeuge mitreden würden damit wir mal alles zusammen tragen was so eingebaut wurde.

Best regards,

Jürgen.Best regards,

CAN Telegramme habe ich glaub ich alle nötigen zur Hand.
Which controller would we use to implement this?
Should we go with the AT-CAN128 or a low-cost AVR with an external CAN controller?
What do you suggest?

Best regards,
Maxx.Should we go with an AT-CAN128 or a low-cost AVR with an external CAN controller?
What do you suggest?

Best regards,
MaxBest regards,
MaxBest regards,

'Wow, an AT90CAN128 costs quite a bit at around 10 euros. I think that's acceptable. It seems simpler than making things more complicated with external drivers, right?'

Der CAN Treiber beleibt uns nicht erspart, weil in der MCU nur der CAN Controller eingebaut ist.
Das ist auch gut so, da man die freie Wahl hat (Low-Speed Treiber).
Ich hätte persönlich nichts gegen den AT90CAN128.
HSure, here's the translation:

'Even for that, including the Atmel evaluation board.'d.I even have the Atmel evaluation board for it.

sorry.
That's what was meant .

Hello,

Okay, I'm back after a long time. Right now, I'm just finishing up my technician training. Yesterday, we started programming the yC. I also had a chance to talk to our teacher, and he said he would provide additional support if we want to build such a control unit. Next week, I just need to bring the command set. What features are included in the AT90CAN128 chip? Maxx, do you have a datasheet for me?

Best regards,

Jürgen.

Hallo Jürgen!
The datasheet is available directly from Atmel: CLICK

Best regards,
Maxx.The datasheet is available directly from Atmel: }CLICK}.Best regards,

@ Jürgen
Was für einen techniker machste denn?
And what programming languages do you use?
Sure, here is the translation of the text from German to English:

'LG' can be translated as 'Best regards' or 'Sincerely'. It is a common abbreviation for 'Liebe Grüße', which means 'Warm greetings' in English.