Quote:
Originally Posted by Mr.Retrofit
Hi, I appear to be in the same position as you, I'm only gathering parts and information at this stage but it looks like this will be my big stumbling block.
What is your current plan, designing a circuit to take the Hall Sensor output and convert it to an AKprotocol output?
I'm still researching and would be curious how to make this work with original parts but is it the case that I (we) would have to change the complete hub/driveshaft assembly?
Thanks for the incitful info so far, you've save me some work at least 
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Hi, I think I hv figured it out.
For BMW 4cyl engine (without Active Steering) :
1) replace with 6cyl DSC hydro braking pump to get rid of Wheel Torque error
2) for Diesel engine - replace wheel speed sensor 34526762465 (front) & 34526764610 with 34526870075 (front) & 34526870077 (rear) only
3) for Petrol engine - replace wheel speed sensor 34526762465 (front) & 34526762466 (rear) with 34526870075 (front)& 34526870076 (rear) + replace rear wheel angular bearing 33416762317 (42X75X37) with magnetic encoder type bearing (may not need to change complete hub/driveshaft assembly as 34526870076 (rear) sensor still able to sense thru the gap between reluctor ring and wheel hub if magnetic encoder type bearing installed)
I am experimenting to convert Hall Sensor output to AK protocol signals. Below AK protocol signals are obtained from the sensor while StandStill, Forward & Reverse. The circuit I constructed has solved the speed signal problem, left only the direction of rotation (picture 4 is the simulated forward signals from my circuit). I think I am almost there... Hope it works. Will update accordingly.