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ECU Files => ECU Definition File Requests => Topic started by: M.Mischler on October 29, 2024, 09:38:48 AM



Title: 8D0907551D 0261206382 350243 VMAXNB
Post by: M.Mischler on October 29, 2024, 09:38:48 AM
I would like to know where I can find the fixed value VMAXNB (maximum permissible vehicle speed in normal operation) in 8D0907551D 0261206382 350243. Does anyone know the address?

If necessary, I would be willing to pay for this information.


Title: Re: 8D0907551D 0261206382 350243 VMAXNB
Post by: gremlin on October 29, 2024, 12:47:13 PM
There are 4 values concerning Vmax control
0x132F2
0x132F4
0x132F6
0x132F8



Title: Re: 8D0907551D 0261206382 350243 VMAXNB
Post by: M.Mischler on October 30, 2024, 12:31:18 AM
There are 4 values concerning Vmax control
0x132F2
0x132F4
0x132F6
0x132F8



Thank you for your message and for taking the time to listen to my request :)

If I understand you correctly, this means the following values:

VMax0 --> 0x132F2 --> 80 81 --> 32897 * 0.007813 = 257.02 km/h
VMax1 --> 0x132F4 --> 00 82 --> 130 * 0.007813 = 1.02 km/h
VMax2 --> 0x132F6 --> 00 83 --> 131 * 0.007813 = 1.02 km/h
VMax3 --> 0x132F8 --> 00 83 --> 131 * 0.007813 = 1.02 km/h

The values of VMax1, VMax2 and VMax3 irritate me. Are they really correct? Aren't they too low?

The values in the G-Box are as follows
VMax0 --> 0x1E4C2 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax1 --> 0x1E4C4 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax2 --> 0x1E4C6 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax3 --> 0x1E4C8 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax4 --> 0x1E4CA --> 83 00 --> 33536 * 0.007813 = 262.02 km/h


The values in the K-Box are as follows
VMax0 --> 0x1F0FA --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax1 --> 0x1F0FC --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax2 --> 0x1F0FE --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax3 --> 0x1F100 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax4 --> 0x1F102 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h


Could it be that the 4 VMax values in the D-Box start one byte later? I mean the following:
VMax0 --> 0x132F3 --> 81 00 --> 33024 * 0.007813 = 258.02 km/h
VMax1 --> 0x132F5 --> 82 00 --> 33280 * 0.007813 = 260.02 km/h
VMax2 --> 0x132F7 --> 83 00 --> 33536 * 0.007813 = 262.02 km/h
VMax3 --> 0x132F9 --> 83 C0 --> 33728 * 0.007813 = 263.52 km/h


Title: Re: 8D0907551D 0261206382 350243 VMAXNB
Post by: gremlin on October 30, 2024, 03:34:33 AM
Thank you for your message and for taking the time to listen to my request :)

If I understand you correctly, this means the following values:

VMax0 --> 0x132F2 --> 80 81 --> 32897 * 0.007813 = 257.02 km/h
VMax1 --> 0x132F4 --> 00 82 --> 130 * 0.007813 = 1.02 km/h
VMax2 --> 0x132F6 --> 00 83 --> 131 * 0.007813 = 1.02 km/h
VMax3 --> 0x132F8 --> 00 83 --> 131 * 0.007813 = 1.02 km/h

Incorrect interpretation - swap bytes. The data are 16-bit lo-hi (low byte first) must start at an even address.
Also D-box have another structure of Vmax calibrations comparing to G or K boxes

$13272 VABSCH    Vmax-Regler-Abschaltschwelle
$13274 VHYST      Vmax-Hystereseschwelle
$13276 VMAXO     Vmax-Begrenzungswert
$13278 VVORH      Vmax-Vorhaltschwelle




Title: Re: 8D0907551D 0261206382 350243 VMAXNB
Post by: M.Mischler on November 02, 2024, 09:37:52 PM
Incorrect interpretation - swap bytes. The data are 16-bit lo-hi (low byte first) must start at an even address.
Also D-box have another structure of Vmax calibrations comparing to G or K boxes

$13272 VABSCH    Vmax-Regler-Abschaltschwelle
$13274 VHYST      Vmax-Hystereseschwelle
$13276 VMAXO     Vmax-Begrenzungswert
$13278 VVORH      Vmax-Vorhaltschwelle




Thank you very much!