0:00 Setting Fardriver regen cutoff 0:10 when the battery capacity on the app is less than 90%, the fardriver will regen. 0:26 you can see at 79% SOC during braking the regen is working (few hundred watts going in the battery) 0:37 make sire your rated voltage is the true nominal voltage of your battery based on its chemistry. Mine is 16*3.7v=59v 0:47 I Change Full BattCoeff until it shows 98% to demonstrate no regen occurs 1:07 now you see during braking only 47 watts going in the battery. Not enough to cause a surge in voltage 3:39 you can see the cutoff point is right at 90% capacity as shown on the fardriver app 4:03 I open the BMS app to check the real SOC, its 73% 4:29 I set Full BattCoeff back to the 1200 I set earlier. 4:37 now the SOC of the fardriver is back to a reasonable estimate 74% 4:44 tune this setting to get regen to come on as soon as you feel your battery is ready to absorb it.
The calibration just changes the value of SOC % corresponding to max pack voltage. So if you just calibrate it to be correct at 100%, regen will not work until you get below 90%. If you have a high capacity battery, or more important one that can absorb a charge fast, compared to amount of regen you have set, you can move the calibration point up so that 95% corresponds to fully charged, and than would allow regen to start sooner. For my battery which can charge at 40a and my tiny ebike which only used 10a/15a for regen, i moved my calibration point such that my actual SOC is 98% when the fardriver is seeing 90. This allows my regen to start working right away. The main goal is to avoid a conflict between the BMS closing the port if regen causes too much voltage surge. Fardriver uses a very conservative 90% but that means you won’t have regen for the first few stops in city driving.
Only based on what the Fardriver thinks is 90%, but not based on actual SOC. Your real battery SOC may be 98% when the fardriver is calibrated to show 90% so that regen starts working as soon as your battery can absorb it,
@imho7250 could you calibrate the fardriver way over the actual SOC and then it will always read above 90%? Of course the dashboard SOC on the dashboard wouldnt be accurate i guess
@@MrDeceptacon88 , well rather than making it always over 90% it’s easier to just turn regen off. And I think you can make it over 90% for a longer time but the midpoint, which is what your nominal voltage is, will still be somewhat near nominal voltage. I discovered it by accident because normally I don’t fully charge the battery but this time i did, and i noticed no regen so i thought it was broke. Lol
@MrDeceptacon88 , yes, me too. So why would you want the battery capacity to stay over 90% longer than needed if you want regen as early as it is safe for your battery?
