CDL3 speed to M800

[cotje]

Hi,

I have a nice working combination of M800 connected to a CDL3. Is it possible to transmit the CDL3-GPS-Speed data to the M800 as inputchannel and use it as groundspeed indicator for Launch Control?

I tried configuring a CAN channel to receive ADL data, but to no reveal.

Anyone a solution?

[Sean]

Assuming you are already receiving data from the ECU successfully, something like this should be close. Open the can setup in CDL manager , set to the following. Hex address 0F3 is 243 in decimal which we use in the ecu.

Connections/communications/ Set up a new template on the can bus the ecu is connected to..

cdl1.png (33.47 KiB) Viewed 22680 times

Select the channel to transmit

cdl2.png (23.55 KiB) Viewed 22680 times

[Sean]

General setup/comms/can setup The 243 number is the can address in decimal

m8001.png (17.65 KiB) Viewed 22680 times

Sensor setup/input setup/speed

m8002.png (19.23 KiB) Viewed 22680 times

That's more or less it, you may have to mess with the addressing a bit.

On a separate point, an actual ground speed from a wheel would be better than gps speed for launch control, if you have it. Actual ground and drive speed sent directly in to the ecu is better still.

[Scott@FP]

Sean with an AWD GPS speed works better for LC since there is really no true ground speed reference during AWD wheelspin.

[Sean]

Sean with an AWD GPS speed works better for LC since there is really no true ground speed reference during AWD wheelspin.

That makes perfect sense Scott.... I'm a dinosaur, only work on 2wd stuff so I live in jurassic world

[cotje]

Thanks guys! Great info.

I entered these setting but there is still no speed metric available in the M800. I also tried another address setting but this did not help either. I must be missing a small detail.

Will send the pictures from my current setting soon.

[Sean]

There is a MoTeC tech note DTN0005 ADL data to M800 via CAN comms, I'll see if I have the .pdf around, as far as I know ADL, SDL, CDL all use the same method.

Edit: Found it.... This is the latest version I had.

DTN0005_ADL_data_to_M800_via_CAN_comms[1].pdf

(126.41 KiB) Downloaded 1436 times

[cotje]

Perfect Sean! The instruction in de doc made it work. Happy Motec user here