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Discussion Starter · #1 ·
50-50 Haldex Tuning avaliable!

But only for the R32 and Audi TT and S3


I ran across this website selling Haldex ECU's to achieve 50-50 torque distribution.

Possible application/adaptability for the R?

http://www.atp-tuning.at/produ...a8891

Roughly translated:

Haldex ECU TT/R32/S3
Interactive, drivingdynamic regulation "Haldexsteuerung"
Information for interactive drivingdynamic regulation: The engine torque will transfer as usually with front wheel drive over the transmission and the front axle differential to the front axle.
Depending upon drivingdynamic requirements the moment will transfer additionally over front axle drift, cardan shaft, Haldexkupplung and rear-axle drive to the rear axle.
The moment transmission to the rear axle is made electronically regulated by the Haldexkupplung.
50% - 50% allocation of force in driving tendency from the Untersteuern(understeer) to overriding better handling in the snow and loose underground (surfaces).
Improved keeping in track regret with load change
ABS - suited simple installation
This system makes one for nearly 50% - 50 possible % allocation of force in driving with snow, ice, crushed stone and wet roadway.
For the sporty driver of great importance!
The new Haldex ECU improves the achievement and handling of the AUDI TT Quattro, AUDI S3 or Volkswagen R32
The new Haldex ECU supervises the throttle supply and other sensors and transfers the torque faster to the back wheels particularly with sporty driving fashion.
The result is a more neutral handling and a better acceleration.
This system does not beinflusst(affect) the ABS or traction control system
 

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Re: 50-50 Haldex Tuning avaliable! (autoduel)

Ok everyone, when you go to bed tonight and say your prayers, as your kneeling at the foot of your bed, throw in a little blurb about how great it would be to have Haldex make a version of this for the R.....
 

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Re: 50-50 Haldex Tuning avaliable! (RhaRdeR)

Quote, originally posted by RhaRdeR »
Ok everyone, when you go to bed tonight and say your prayers, as your kneeling at the foot of your bed, throw in a little blurb about how great it would be to have Haldex make a version of this for the R.....

They already did. Years ago, actually. It was co-developed with Evolve. All the R&D has been done, and the product is ready to sell. Only problem is that something fell through in negotiations to bring this product to market. Thus great technology sits on a shelf unused.
 

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Discussion Starter · #9 ·
Re: 50-50 Haldex Tuning avaliable!

Quote, originally posted by eip »
HPP Works On
Gen 1 Haldex Vehicles:
- Audi A3 / S3 Quattro
- Audi TT Quattro
- Seat Leon 4
- Seat Alhambra
- Skoda Octavia 4x4
- VW Golf R32
- VW Golf 4 Motion
- VW Bora AWD
- VW Sharan AWD
- VW Beetle RSi

- Note: Audi A3, sportsback model 2004 is equipped with Haldex gen2 and will not work with the HPP.

Golf 5 model 2005 will also be equipped with Haldex gen2 and will not work with the HPP

Since it is a standalone ECU, and the application list is not exclusively VW/Audi vehicles. Once could assume it would work with all Gen 1 haldex equipped vehicles. Can anyone confirm the generation of the R haldex system? The above list is inclusive of the vehicles that haldex says is using their system with the exception of Volvo. Is the volvo haldx system different than in the above vehicles?

Quote, originally posted by Haldex »

"The software program determines the control coupling(throttle valve). It comprises of two main parts: base software and application software.

The base software controls the internal functions of the Haldex LSC. One example is compensating for the variations inthe viscosity of the oil, within operating temperature.

The application software communicates with other active systems in the vehicle via a data bus. It detrmines the vehicle state with the help of read signals. Examples of received signals are: engine torque, engine revs and wheel speeds. From this estimated vehicle state, the optimum torque distribution is determined in each condition. If the input signals are lost due to a failure in another ECU, the Haldex LSC enters a limp mode, maintaining AWD. Every vehicle has its own requirement specification profile This specification leads to different calibrations of the Haldex LSC. A multiple set of parameters are avaliable in the software itself. Online, the application software will determine which set to use in the actual vehicle, e.g. estate or sports saloon.

Torque transfer characteristics of the Haldex LSC. In normal driving conditions, the torque over the unit is controlled by the ECU. When a wheel start to spin, the coupling automatically and instantly stops the spinning. The maximum torque is set by the overload protection valve according to the vehicle manufacturer's specification.

When max torque is reached, the overload protection valve is reached and the torque is maintained at the preset value."

Is it possible to change or recalibrate the the preset (limp mode) value to 50-50 and then disconnect certain input sensors to induce the limp mode?
 

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Re: 50-50 Haldex Tuning avaliable! (JCviggen)

I have spoke with Haldex. The units are very specialized per car, a S60R one would be different than the V70R one for example. They are not and not likely to be available for Volvos.
 

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Re: 50-50 Haldex Tuning avaliable! (JimLill)

Quote, originally posted by JimLill »
I have spoke with Haldex. The units are very specialized per car, a S60R one would be different than the V70R one for example. They are not and not likely to be available for Volvos.

WOW - that is terrible news Jim

I cracked open this thread hoping for some great news and then immediately read about VW & Audi applications http://********************/smile/emthdown.gif

A few posts later there was a glimmer of hope for us Volvo guys http://********************/smile/emthup.gif

But then the voice of reason provides an absolute & reosunding - "fuggetaboutit"
 

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Re: 50-50 Haldex Tuning avaliable! (bschurr)

Old news.
Volvo put some (serious) pressure on Haldex NOT to produce this.
(Which goes a long way to the way Volvo feels about the strength of their own product)
How do you spell angle gear folks?
 

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Re: 50-50 Haldex Tuning avaliable! (JRL)

Someone could ask this guy to comment?
 

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Re: 50-50 Haldex Tuning avaliable! (JRL)

Quote, originally posted by JRL »
Old news.
Volvo put some (serious) pressure on Haldex NOT to produce this.
(Which goes a long way to the way Volvo feels about the strength of their own product)
How do you spell angle gear folks?

Volvo's drive system to the rear wheels is specified for PART-TIME use only. If you reprogram it to supply continuous torque to the rear, things will quickly wear out and/or BREAK. Volvo knows it and so does Haldex...
 

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Re: 50-50 Haldex Tuning avaliable! (vLGrok)

What idiot would swap current R SW for 50-50???? We get upto 70% torque sent to the rear wheels and the car handles better for the "adaptive" characteristic.

Quote, originally posted by vLGrok »
Someone could ask this guy to comment?

OK... so how did you get his info? Could someone at Heico or TME call this guy and send him some money to get more rear bias out of our system? Perhaps that would be more interesting than just having 50-50 split.
 
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