I wanted to ask you how to build a logger from a found CAN message. Let me put it in context.
We are working on a project that consists of studying the lane keeping assistance systems disconnections. As I, who am in charge of detecting the disconnections, do not have a car with an LKA system, I have started by identifying the CAN message that controls the speed limiter. I was testing with the recorder and the player and I found it. I have seen that by running the messages:
Increment limiter: 828e700010000287 and 828e700010000293
On/Off limiter: 828e700001000293
I can activate and deactivate the speed limiter and increase its value.
The next step is not to activate or deactivate or increase its value, I just want to check, constantly, if it is active or not. That is to say, I want to create a logger that queries the ECU all the time about the state of the speed limiter. The problem is that I can’t translate the write CAN messages that I got in a read-only message to be able to make queries without affecting the behaviour of the car. Could you give me a hand, if you know how to do it, to translate those messages into read-only status messages? If you can give me some guidelines on how I should proceed it would be a great help.
I would also like to make public all the IDs of the messages I find once I find out how to make the queries and thus make the library and the community bigger.
Thanks in advance.