dashed yellow line at full throttle

dashed yellow line at full throttle

I've volkerized and see references in low battery conditions and cold limited regen conditions but what does the dashed yellow line in the power meter (not regen) mean with a 80% full battery at full throttle?

jat | April 9, 2013

I would imagine if the battery is too hot or too cold, you also limit the power coming out of the battery. I know it limits maximum power when it the battery is nearly empty, and I have also seen it limited when it was below freezing until the battery warmed up.

GeekEV | April 9, 2013

The dashed yellow line (be it on power or regen) means it's limited to that level. I got that after doing several zero-to-high-speed test runs in a row. Most likely the battery was getting too hot from the rapid drain.

shop | April 9, 2013

That's pretty cool that they actively monitor and adjust battery heat at that level of detail. One more reason why Tesla's batteries don't catch fire like other's do.

olanmills | April 9, 2013

Yes, I've seen this when I left the car outside when the temperature was in the teens for I think 8-10 hours. A textual notification was displayed too that said something like, "Power may be limited until the battery warms up".

Sounds like you got the battery too hot lol. What have you been doing?

Brian H | April 9, 2013

It's really hot that the battery can actively cool itself, and really cool that it can heat itself. Or SLT.

christurbeville | April 11, 2013

Hmm but the power indicator was above the dashed line as it was full throttle. I guess it is saying that if you continue like this I will have to reduce power to that line due to heat. 360kw for a long time is some serious power.

GeekEV | April 11, 2013

Power was above the line? Huh...

DouglasR | April 11, 2013

I've never seen that. I thought the yellow dashed line was a limit.

christurbeville | April 11, 2013

Yes it was the dashed line inside the arc of the yellow power meter. The meter was at 360kw (or whatever is that top number) and then it showed a dashed line at less than that.

dortor | April 11, 2013

yeah - I've seen this also - but never for very long

olanmills | April 11, 2013

Ah, so you've been like flooring it uphill or something?

prytog | June 27, 2013

That's exactly what I've been doing; flooring it uphill and I regularly get the dashed line.
We've had our MS for about 4 weeks and have made 4 trips back and forth from Portland to central Oregon. Most of the passing lanes are on uphills at 3000'+ elevation. When I get behind a line of cars I now relax and take it easy. I don't try to pick them off one by one, that takes too much concentration. I wait for the passing lane, and then I pass everybody at once. Less anxiety traded for a periodic rush to be in the clear.

TFMethane | June 28, 2013

Careful... those passing lanes are natural speed traps.

christurbeville | June 28, 2013

After much experimentation;) I've determined its like the regen line in that the car is saying you can do this but I will have to limit you soon. On a particularly taxing run it did actually start slowing down after about 5min of full throttle.

hsadler | June 28, 2013

Is there someplace that explains the yellow? Haven't found it in the manual?

Brian H | June 28, 2013

Power draw limit protecting the battery from overheating.

SBerg | October 15, 2013

The other morning I got in my MS and had a dashed yellow line at minus 35. After some driving it went away. Anyone know what that meant?

David70 | October 15, 2013

Assuming you hadn't done a max range charge, it was probably that the battery was still cold. I frequently get that now that the weather has cooled down.

SBerg | October 15, 2013

Let me clarify, the temp was not -35 degrees, the dashed line was at -35 which would normally be showing that I am regen charging the battery. | October 15, 2013

In the orange arc, the Tesla is limited your power draw because the battery is either too hot, too cold, or it is nearing empty. In the green arc, it is limited regen, which means the battery it too hot, too cold, or you just did a max charge and there is not place to put the re-captured energy,


SBerg | October 15, 2013