Mark, Tom, I just checked in the auto calibration implementation. It works by taking the maximum voltage reading while the car is off and not charging as the reference voltage, so it should adapt to all possible variations. Alert is triggered if current reading is at/below ref - 1.3V, which should fit for all cases. The alert now also includes the reference, and it can be queried by the "DIAG" SMS command. It's also now included as a new field in the environment message ("D"). Regards, Michael Am 22.01.2013 04:19, schrieb Mark Webb-Johnson:
Tom,
My understanding is that the 2.x cars work the same way. The 12V battery is just for emergency systems.
Presumably if the main pack fails (fuse blows, whatever), the 1.5 cars have no way of running hazard warning lights, brake lights, etc.
It would still be useful to see the stability of that 12V line, on the v1.5 Tesla Roadsters.
Regards, Mark.
On 21 Jan, 2013, at 12:48 AM, Tom Saxton <tom@idleloop.com> wrote:
on 1/19/13 10:08 PM, Mark Webb-Johnson wrote:
If anyone has a 1.x roadster with a v2 hardware module, and has recently parked it for some days, it would be helpful if you could send me the date/time range and your vehicleid. I don't think the v1.5 Roadster has a 12V battery. It's my understanding that it uses a DC-to-DC converter on one of the ESS sheets to power the 12V systems when the car is off.
Tom
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