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[ME7.X, ME9,X] AIMV Wheel speed pulses.
17-06-2019, 09:00 AM,
Post: #1
XZBMW  [ME7.X, ME9,X] AIMV Wheel speed pulses.
Hello, Anyone changed AIMV parameter in WinOLS, its Number of pulses per km. 
Actually i have ME7.2 in e30 but value is from e39 24161074 no idea why this big, i calculated that it should be 468 for 215/40/17" for my e30.
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17-06-2019, 14:00 PM, (This post was last modified: 17-06-2019, 14:06 PM by mugenman1111.)
Post: #2
RE: [ME7.X, ME9,X] AIMV Wheel speed pulses.
There is a conversion factor involved I have laid these items out for both DME's as I have cars with both with aftermarket tires/rim size that impact my speed calc being off

let me see if i can dig it out of my files for you and i will send you information in this post

Speed calc is referred to as FNRad

I have found this hex at a few different offsets depending on software version your DME is running

The conversion for Me7.2 is laid out like this :
0.062500 * X

with a 1 byte significance

I have the functionrahmen for this DME if you are wanting to do more reading on how it works
https://github.com/zarboz/BMW-XDFs/tree/master/Me7.2

https://github.com/zarboz/BMW-XDFs/wiki


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[+] 1 user says Thank You to mugenman1111 for this post
22-06-2019, 12:21 PM,
Post: #3
RE: [ME7.X, ME9,X] AIMV Wheel speed pulses.
(17-06-2019, 14:00 PM)mugenman1111 Wrote:  There is a conversion factor involved I have laid these items out for both DME's as I have cars with both with aftermarket tires/rim size that impact my speed calc being off

let me see if i can dig it out of my files for you and i will send you information in this post

Speed calc is referred to as FNRad

I have found this hex at a few different offsets depending on software version your DME is running

The conversion for Me7.2 is laid out like this :
0.062500 * X

with a 1 byte significance

I have the functionrahmen for this DME if you are wanting to do more reading on how it works
https://github.com/zarboz/BMW-XDFs/tree/master/Me7.2

https://github.com/zarboz/BMW-XDFs/wiki
Ok but thats small variable which adapts wheel size.
I have to change AIMV because my speed pulses is different in e30 - 9 pulses per rotation, e39 or x5 is - 48 i guess
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25-06-2019, 18:41 PM,
Post: #4
RE: [ME7.X, ME9,X] AIMV Wheel speed pulses.
@bump
anyone ? still can't get it to work T_T found something about ME9 but same big numbers in winols
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