[Ovmsdev] CTP: Charge Time Predictor or Chocolate Tea Pot?

[Mark Webb-Johnson]

Tom's CTP algorithm is in my Tesla Roadster, and I've just started the first charge with it:

2013-04-17 06:59:39.975150 -0400 info  main: #71 C EV915 rx msg S 79,K,3,0,prepare,standard,246,222,56,0,100,0,7,13,0,0,0,-1,156.78,-1
2013-04-17 07:04:32.207360 -0400 info  main: #71 C EV915 rx msg S 79,K,220,0,charging,standard,246,222,56,0,100,0,5,1,0,0,0,-1,156.78,-1
2013-04-17 07:04:32.208899 -0400 info  main: #71 C EV915 rx msg S 79,K,220,0,charging,standard,248,224,56,0,100,0,5,1,0,0,0,-1,156.78,-1
2013-04-17 07:09:10.003015 -0400 info  main: #71 C EV915 rx msg S 82,K,218,56,charging,standard,258,232,56,9,100,2,5,1,0,0,0,-1,156.78,38
2013-04-17 07:19:08.396430 -0400 info  main: #71 C EV915 rx msg S 86,K,218,56,charging,standard,269,243,56,19,100,4,5,1,0,0,0,-1,156.78,27

Prediction is the last column: 38 minutes given 56 amps @ 220 volts, 24 - 27 celcius ambient, with about 80km (50 miles) to put into the pack.

Exciting times ahead, with alternative charge control mechanisms.

Regards, Mark.

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