CLIMatronic HVAC controls for early 928's (and maybe late too)
03-21-2012, 07:57 PM
#46
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For those shopping for the GPIO board, I've had excellent service from DIY Autotune.
You will need the following
GPIO Kit http://www.diyautotune.com/catalog/g...kit-p-403.html
Parts Kit http://www.diyautotune.com/catalog/g...ift-p-404.html
and a few other bits from wherever you can find them - ebay has the TA8050P listed
BC327 PNP transistors x 2
IRF9540N P-channel Mosfet x 1
TA8050P H Bridge 1.5A driver x 1
10uf electrolytic cap x 1
You will need the following
GPIO Kit http://www.diyautotune.com/catalog/g...kit-p-403.html
Parts Kit http://www.diyautotune.com/catalog/g...ift-p-404.html
and a few other bits from wherever you can find them - ebay has the TA8050P listed
BC327 PNP transistors x 2
IRF9540N P-channel Mosfet x 1
TA8050P H Bridge 1.5A driver x 1
10uf electrolytic cap x 1
03-22-2012, 11:55 AM
#47
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Initial in vehicle testing has gone well. Mosfets are running cool to the touch under load and contol logic for all manual functions is working as intended.
The AUTO feature still needs work so I'll get stuck into that early next week.
The build hints page is almost complete and also contains a link to the current firmware with Auto fan/heat control disabled.
and for giggles, here is a piccy of the other bits of the system in Project Stupid
Excuse the mess - there is a plan I promise
The AUTO feature still needs work so I'll get stuck into that early next week.
The build hints page is almost complete and also contains a link to the current firmware with Auto fan/heat control disabled.
and for giggles, here is a piccy of the other bits of the system in Project Stupid
Excuse the mess - there is a plan I promise
Last edited by svpmx83; 07-23-2015 at 03:27 AM.
03-22-2012, 12:39 PM
#48
Cool!!.. how much you want for the RNS-E (LOL..need one for my A4)...and the RS steering wheel looks awesome. Are you planning on trying to make the paddle shifters work too?
03-22-2012, 12:52 PM
#49
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3 speed auto so no real use for paddle shifting - I 've been hooked for years on the multi function wheel with the voice control of the RNS-e and nav/bluetooth so it was a must install item in this car too.
And the next MS/Extra megasquirt code release will contain the canbus comms framework we developed to drive the 996 Instrument cluster
And the next MS/Extra megasquirt code release will contain the canbus comms framework we developed to drive the 996 Instrument cluster
03-22-2012, 03:33 PM
#52
Rennlist Member
I feel obligated to jump in here.
Hans as worked really hard to design a replacement controller from scratch. And I came up with a simple but attractive fascia.
I'm sure most of you are aware of the project.
I'm just pointing out that our version is still in the works and should be ready shortly. I know a lot of you are waiting patiently.
Thanks
Paul
Hans as worked really hard to design a replacement controller from scratch. And I came up with a simple but attractive fascia.
I'm sure most of you are aware of the project.
I'm just pointing out that our version is still in the works and should be ready shortly. I know a lot of you are waiting patiently.
Thanks
Paul
03-22-2012, 07:04 PM
#53
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The Porsche/Audi units use the same driver chip and have one extra button and no small temp display. so there may be some tweaking involved.
03-22-2012, 11:33 PM
#56
Nordschleife Master
Thanks Steve for posting this very interesting thread! 
http://www.ebay.com/itm/ELECTRONIC-C...#ht_500wt_1413
The wiring schematics for the control unit are in this PDF (they're based on some Audiworld posts for retrofitting it to an earlier Audi 80 model).
http://users.on.net/~hilton/Audi%20A...rol%20Unit.pdf
Last edited by Hilton; 03-23-2012 at 12:34 AM.
03-23-2012, 12:27 AM
#57
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The audi one illuminated
Made by hella seems to be the key, I'll have to see if i can get hold of one although I still prefer the VW unit
Made by hella seems to be the key, I'll have to see if i can get hold of one although I still prefer the VW unit
03-23-2012, 06:36 AM
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I think the build page is now complete, fingers crossed of course.
No warranty - use at your own risk - Dont Try This at Home - for offroad use only - may burn your house down and/or damage the planet etc ..........
The thee modifications are -
1. Servo bypass wiring as per instructions.
2. Solenoids are now Low Side driven so either - insulate and run 12v common - or change to a more common two wire insulated unit - I'm using toyota ones
3. PWM fan operation provides a grounding signal capable of sinking 4A. As our fans are High Side driven - an external Pchannel Mosfet or PNP power transistor is required - I used a toyota unit and changed the NPN tranny to PNP and altered the pull down to pull up.
I've not written 2 & 3 up in the build page yet
No warranty - use at your own risk - Dont Try This at Home - for offroad use only - may burn your house down and/or damage the planet etc ..........
The thee modifications are -
1. Servo bypass wiring as per instructions.
2. Solenoids are now Low Side driven so either - insulate and run 12v common - or change to a more common two wire insulated unit - I'm using toyota ones
3. PWM fan operation provides a grounding signal capable of sinking 4A. As our fans are High Side driven - an external Pchannel Mosfet or PNP power transistor is required - I used a toyota unit and changed the NPN tranny to PNP and altered the pull down to pull up.
I've not written 2 & 3 up in the build page yet
03-23-2012, 10:46 AM
#60
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The heat valve locking solenoid I'm using is a 25860-75181 - the venting hold release ones I'll grab numbers for tomorrow.
As for the resistor pack, I'm still using it for the always on low speed, which is normal practice for the oem systems I've seen.
As for the resistor pack, I'm still using it for the always on low speed, which is normal practice for the oem systems I've seen.
