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dalathegreat / Nissan-LEAF-Battery-Upgrade

Software and guides for upgrading LEAFs to bigger and newer batteries
GNU General Public License v3.0
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2011-2012 ZE0: Battery SOH bars stuck at 12 #9

Open dalathegreat opened 8 months ago

dalathegreat commented 8 months ago

2-Port CAN-bridge. Shows full battery health bars. But battery should be a 9 bar and SOH is 73% image image image

Originally posted by @maheshsachintha in https://github.com/dalathegreat/Nissan-LEAF-Battery-Upgrade/issues/8#issuecomment-1777685051

nzautomate commented 1 month ago

I think I solved this - code worked for the bar level in the ZE0 I programmed it for. First a Look up table: uint8_t bars_lut[16] = {0,1,2,3,4,4,5,6,7,8,8,9,10,11,12,12};

A variable to store the segments reported by the installed (AZE0 in my case) battery: volatile uint8_t capacity_segments_aze0 = 0;

Then work with the two to report the segments to the ZE0 in "ZE0 formatting"

case 0x5BC:
...
if( My_Leaf == MY_LEAF_2011 )
...
if(frame.data[4] & 0x01) {capacity_segments_aze0 = ((frame.data[2] & 0xF0) >> 4); }
swap_5bc_full.LB_CAPSEG = bars_lut[capacity_segments_aze0];

The ellipsis represents unrelated code which is already part of the canbridge I got the values for the Look up table from the can database files dala hosts - I assume they are right but I have not tested them.

dalathegreat commented 1 month ago

@nzautomate I took those values from my AZE0, so I am not 100% those values work with ZE0. But thanks, I can open another PR with this also added!

dalathegreat commented 1 month ago

@maheshsachintha

Please try the 4.23beta and see if it helps! https://github.com/dalathegreat/Nissan-LEAF-Battery-Upgrade/pull/32