Setup for CAN-Bus logging using OBDLink readerġ) Enable "RaceChrono > Settings > Expert settings > Experimental devices"Ģ) Add "OBDLink LX/MX/MX+ Bluetooth (CAN-Bus)" from "RaceChrono > Settings > Add other device". OBD-II is also implemented in motorbikes that meet the EURO5 emissions standard (some other bikes too, but it's kind of rare). Cars sold in Europe and USA since 2001 implement OBD-II, also even some earlier models that were prepared to be sold after 2001. OBD-II can be implemented on top of CAN-Bus or "K-line Bus" for example. OBD-II is a diagnostic standard required by law (Europe and USA), used originally for emissions tests. Also data scale is helpful when creating the equation. You will need to know the vehicle specific PID numbers, and the message structures such as byte offset and byte length of the piece of data you're after. Searching the brand specific internet discussion forums are usually good bet. Most new vehicles have CAN-Bus, it's been used in cars since early(ish) 2000's, and nowadays in motorbikes too.įor the CAN-Bus messages to be useful, they can be reverse engineered with right tools (not RaceChrono at the moment), or you might find them already reverse engineered by others. Such as RPM value from engine ECU to the gauge cluster, or accelerator pedal position to engine ECU. The CAN-Bus is a communication bus in your car, used for electronic controller units (ECU) communicating with each other. Also this thread could act as draft documentation for the feature, and when complete will be moved to the support section. But I guess there's no reason not to try it as you already have the hardware and reverse engineered CAN-Bus messages. It is a bit hidden as it's not properly tested and documented. There is a "beta" feature in RaceChrono that will allow you to log data from CAN-Bus messages, using an OBDLink brand reader. The linked document is not custom OBD-II PIDs, but it is CAN-Bus.
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