Extremely accurate performance data from the CAN bus

[wk057]

Datalog an autopilot drive might be interesting, spesh if you can pair it up with GPS position and drop it onto a Google map...

I snagged a few short stretches of autopilot driving, actually. Playing it back to my non-AP IC it just thinks it's cruise control.

To get pack group voltages it's probably easiest to log a 100% charge session, they may hit the bus as the BMS talks to the main computer during balancing.

Yeah, I actually just had that same thought earlier today. I may do this soon.

The non-standard PID list for an S or an X must be immense.

I haven't found anything standard about this data... lol

- - - Updated - - -

Would love to know how high the BMS lets the pack temps get when the car is parked and sleeping in a hot parking lot.

Good question too. I'm really focusing my CAN deciphering efforts on the BMS next, so, hopefully get some results soon. Edit: If I end up with another full 85 kWh pack for my project... well... let's just say I might keep this one intact if my efforts go well

 

[Torben_E]

WK057.... WOOW

This is so great data, data that I have wanted to get my hands on for a looong time.

And the internal resistance seems to by much higher than 0,053 Ohm at least if the voltage drop is actuallt 100 VDC+ on the terminals.

Anyway great insight and thanks for sharing.

Any chance we can see any current/voltage from the 3 ph AC motor(s) ?

Torben_E