Apologies if this is posted in the wrong place (newbie here!). I recently bought a ScanGauge II and have set it up to monitor the charge/discharge of the Traction Battery. I found the X-Gauge parameter information necessary, and I think it's working OK; I use Bta, and my question is am I correct in assuming (oh how I hate using that word!) that +ve readings show current coming out of the battery and -ve readings show the battery being charged? (It sounds counter-intuitive, but careful observation and monitoring when re-gen braking and on the "over-run" (closed throttle) seems to indicate it to be so). Also, any other tips as to what useful X-gauges might be configured, I currently have engine RPM, 12V battery voltage, coolant temperature (I did some grille-blocking, so it's nice to see what's actually happening!), and Bta. Thanks in advance - Wil
You are correct on the battery amps that (+) amps are discharge amps from the battery to the MG's. The (-) amps are regen or charge amps form the MG's to the battery. If you think about it "normal" current flow is from the battery to the MG's. I typically monitor Bt2 (middle HV battery temp sensor), MPG, ICE Coolant temp, and now with the Boost Converter recall for the Gen 3's I have been monitoring BVB (Voltage after Boost).
Did you know you can run multiple Scan Gauges. A regular Cat-5 cable works perfect. I made a 10" jumper, run two units side by side!
Thanks for the info. Yes, I understand about the daisy-chaining; I'm waiting to get some more of the disposable and might invest in a second head. Will the second unit need programming, or does the X-Gauges only require setting-up once?
Thanks, Pat! I sort of expected that to be the answer (if I'd been the developer, I'd have spec-ed it so that the whole system is configurable rather than each separate head! Oh well… (sigh!!) - 73 es tnx - K1WD
It's actually not that bad! You just have to plan and decide what 8 parameters are most important to you. I am currently updating the system and replacing the Scan Gauges with a 7" Samsung Galaxy tab! The bonus it has a built in x y inclinometer built it! Torque is really the only program this computer will run. It's strictly a dashboard!
