Rainbow module for Audi: Difference between revisions
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== Reverse Engineering == | == Reverse Engineering == | ||
=== | === Power === | ||
# UDS request for the diagnostic Bus to get current RPM | |||
# UDS request for diagnostic Bus to get current | 0x7e0 03 22 20 6e 00 00 00 00 | ||
0x7e0 03 22 | |||
# sniffed frame from the drivetrain bus | # sniffed frame from the drivetrain bus | ||
??? ?? ?? ?? ?? | ??? ?? ?? ?? ?? | ||
=== | === Torque === | ||
# UDS request for diagnostic Bus to get current torque: | |||
# UDS request for | 0x7e0 03 22 43 7c 00 00 00 00 | ||
0x7e0 03 22 | |||
# sniffed frame from the drivetrain bus | # sniffed frame from the drivetrain bus | ||
| Line 33: | Line 31: | ||
=== Mapping from <code>kW</code> and <code>Nm</code> === | === Mapping from <code>kW</code> and <code>Nm</code> === | ||
Both Power and Torque on the instrument cluster display are displayed as a percent. Most likely the data is provided as a value within 0 to 100 range | Both Power and Torque on the instrument cluster display are displayed as a percent. Most likely the data is provided as a value within 0 to 100 range. | ||
To map current torque and current power to percent, we need to know the peak power value of the engine. This data is also provided by the ECU. | |||
BO_ 1601 Motor_Code_01: 8 Motor_Diesel_MQB | |||
SG_ MO_Leistung : 48|9@1+ (1,0) [0|511] "Unit_KiloWatt" Gateway_MQB | |||
== Reference == | == Reference == | ||
Latest revision as of 09:07, 18 May 2025
Additional module that injects missing data into the CAN-BUS. This will allow displaying Power and Torque values on the instrument cluster sport gauges.
Hardware
Versions
TODO
Installation
TODO
Coding & Adaptation
TODO
Reverse Engineering
Power
# UDS request for the diagnostic Bus to get current RPM 0x7e0 03 22 20 6e 00 00 00 00 # sniffed frame from the drivetrain bus ??? ?? ?? ?? ??
Torque
# UDS request for diagnostic Bus to get current torque: 0x7e0 03 22 43 7c 00 00 00 00 # sniffed frame from the drivetrain bus ??? ?? ?? ?? ??
Mapping from kW and Nm
Both Power and Torque on the instrument cluster display are displayed as a percent. Most likely the data is provided as a value within 0 to 100 range.
To map current torque and current power to percent, we need to know the peak power value of the engine. This data is also provided by the ECU.
BO_ 1601 Motor_Code_01: 8 Motor_Diesel_MQB SG_ MO_Leistung : 48|9@1+ (1,0) [0|511] "Unit_KiloWatt" Gateway_MQB