Dash2 - CAN interface question
Posted: Tue Apr 10, 2018 3:25 pm
Hello again,
I am revisiting this now that my CAN interface works without hardware problems.
Here is the scenario:
ECU sends multiple variables for speed:
Differential Wheel Speed
Vehicle Speed (in MPH) (8 bits, unsigned)
Driven Wheel Speed (in MPH) ( 8 bits, unsigned)
Non-Driven Wheel Speed (in MPH) (8 bits, unsigned)
I have configured the CAN interface to read Vehicle speed as the "misc 4" variable to be fed to the dash.
Sending a value of 0x64 (100 dec) to the CAN interface, the dash displays 223mph. I am not using any conversions in the "Other Data Sources" input.
I am software limited to ONLY choose "Speed from the ECU {misc 4} : "SPEED"" by the Set-Up Speed input form.
Is it possible to add a scalar to this in the other data sources to read properly? No matter what I've tried (MPH to KPH at 0.6213x) simply does not display the speed in MPH. What are the other options for vehicle speed other than ECU speed and a wheel speed sensor?
I am revisiting this now that my CAN interface works without hardware problems.
Here is the scenario:
ECU sends multiple variables for speed:
Differential Wheel Speed
Vehicle Speed (in MPH) (8 bits, unsigned)
Driven Wheel Speed (in MPH) ( 8 bits, unsigned)
Non-Driven Wheel Speed (in MPH) (8 bits, unsigned)
I have configured the CAN interface to read Vehicle speed as the "misc 4" variable to be fed to the dash.
Sending a value of 0x64 (100 dec) to the CAN interface, the dash displays 223mph. I am not using any conversions in the "Other Data Sources" input.
I am software limited to ONLY choose "Speed from the ECU {misc 4} : "SPEED"" by the Set-Up Speed input form.
Is it possible to add a scalar to this in the other data sources to read properly? No matter what I've tried (MPH to KPH at 0.6213x) simply does not display the speed in MPH. What are the other options for vehicle speed other than ECU speed and a wheel speed sensor?