Other Parts Discussed in Thread: GPCCEDV,
I'm going through the instructions in the Advanced guide to mathcad_CEDV calculation powerpoint, and I'm running the example mathcad sheet provided with SLUC564FW
The package includes a file called OCV.DAT which is not described in the literature anywhere that I can see. Removing it breaks the mathcad sheet, so presumably it's important. The notes in the mathcad document call it a "stadard OCV file." (I'm assuming that is a typo and it should be "standard") but I don't know where this file comes from.
This is what's in it:
0 3.516 293.1 1.419 3.6 293.1 2.825 3.648 293.1 4.231 3.666 293.1 5.65 3.673 293.1 7.056 3.677 293.1 8.475 3.681 293.1 9.881 3.689 293.1 11.3 3.7 293.1 12.71 3.709 293.1 14.12 3.718 293.1 15.54 3.725 293.1 16.96 3.73 293.1 18.38 3.735 293.1 19.8 3.739 293.1 21.22 3.744 293.1 22.64 3.748 293.1 24.06 3.754 293.1 25.48 3.758 293.1 26.9 3.762 293.1 28.32 3.765 293.1 29.73 3.767 293.1 31.15 3.769 293.1 32.57 3.772 293.1 33.99 3.774 293.1 35.41 3.776 293.1 36.83 3.778 293.1 38.25 3.781 293.1 39.68 3.784 293.1 41.1 3.787 293.1 42.53 3.79 293.1 43.97 3.794 293.1 45.4 3.798 293.1 46.84 3.802 293.1 48.26 3.807 293.1 49.69 3.813 293.1 51.13 3.818 293.1 52.55 3.825 293.1 53.95 3.831 293.1 55.37 3.839 293.1 56.78 3.847 293.1 58.2 3.855 293.1 59.6 3.863 293.1 61.02 3.872 293.1 62.44 3.88 293.1 63.85 3.888 293.1 65.27 3.896 293.1 66.68 3.904 293.1 68.09 3.912 293.1 69.51 3.92 293.1 70.93 3.928 293.1 72.35 3.936 293.1 73.77 3.945 293.1 75.19 3.954 293.1 76.6 3.963 293.1 78.02 3.972 293.1 79.44 3.981 293.1 80.86 3.991 293.1 82.28 4.001 293.1 83.69 4.012 293.1 85.11 4.022 293.1 86.53 4.033 293.1 87.94 4.045 293.1 89.35 4.056 293.1 90.77 4.068 293.1 92.19 4.081 293.1 93.61 4.093 293.1 95.03 4.107 293.1 96.45 4.122 293.1 97.87 4.14 293.1 99.29 4.163 293.1 100 4.177 293.1
Column 1 appears to be a state of charge percentage, column 2 appears to be a cell voltage and column 3 appears to be temperature in kelvin. The problem is, if I could get those numbers as they relate to each other I wouldn't need to calculate the CEDV coefficients so the pack could tell me what those numbers are.
So my question is, where do I get this file?
- Is it a generic file that is the same across all cell chemistries?
- Is it supposed to be generated from the pack under test?
- Is it a file that should be provided by the cell manufacturer?
- Is it from some other method that I haven't thought of?
Your help would be appreciated.