EDIT:
Ok... I feel pretty stupid but I finally get it now. I've been trying for weeks to get my head around what XGauge was doing. Took WFEC and the revelation that we were flying blind without Battery Amps on the Prius to focus my efforts.
Well here's what I found. First let qualify that this is CAN-bus only. Since I'm a Prius Pilot that's all I've been focused on. So what I've found out is that there are two types of CanBus requests. Passive (snooping the bus) and active. Passive is kinda like ease-dropping on a conversation... the data is just there. Passive is like asking a direct question and expecting a direct answer.
Now after doing a bit of digging there is lots of data out there for the taking... Here's what I "think" we can get:
Passive
L/R GForce = TXD { 0x002A }
F/B GForce = TXD { 0x002B }
Steering degrees L/R = TXD { 0x002D }
Brake engagement % = TXD { 0x0038 }
Speed (decameters / hour ) = TXD { 0x00BC }
Gas pedal position = TXD { 0x024C }
Battery Temp = TXD { 0x03C3 }
Ignition timining = TXD { 0x052E }
EV button (on/off) = TXD { 0x0521 }
Gas Fill Level = TXD { 0x05AC }
Active
Battery SoC = TXD { 0x07E321CE }
Battery Temp = TXD { 0x07E321CF }
MG 1/2 RPM = TXD { 0x07E221C3 }
MG 1/2 RPM = TXD { 0x07E221C4 }
Now there is some other stuff like Headlights (on/off) and stuff like that that I'm not that interested in, but this data all looked pretty cool. I haven't gotten that deep into it so don't pepper me with Q's yet, but please help my "Teach Dan XGauge" thread.
If you look for the Passive commands and you can't find them, it's because the passive TXD is derived by taking the ID, left padding it with zeros and XOR'ing it wish 0x0008. Now all this is Attila Vass data, so I don't know if Ron has already tried and failed to get these to work, or if he just figured, no prius driver in his right mind would be interested in how many lateral G's he pulls in a turn. I'm obviously not in my right mind
GForce sensor is the first one I want to try to get working!
Now once I get the TXD working we can work on the rest... Here's my current reference set:
Attila Vass Can Dump (Excel)
2way's XGauge Coding walkthru
PriusChat XGauge Coding walkthru (Passive Can)
Prius Tech Info
PriusChat Known SGII Glide Bug
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