V1.2 Delayed, New Range Estimates

Rather than tearing V1.0.3 apart, I've been riding in the good weather. I also need to determine if I need a new DC-DC converter that can handle going from speced 48V to 60V input. The delay has given me lots of practice and data, some of which I forgot to record in the log (see right column).

Today I rode a record distance, riding to work, then to the dentist, back to work and then home - 12.7 miles. I realized the amount of battery discharge could be estimated based on KW-Hr input recorded by the P3 meter. There is some charging inefficiency of course, and the final meter should be more accurate, but running the numbers I can estimate my range is about 24 miles max given current configuration and driving style (pretty aggressive). The pack went down 53% today, and I noticed max speed was under 35 on the last stretch home - even a voltmeter would be useful.

Gearing, and weight reduction would help. Driving style too makes a big difference, I do brake a lot and try to get the heck away at stoplights/signs (and it is the fun part). Regen!?

V1.2 Underway - 60 Volts

Did a long commute into work today, found I could really only peak the bike out at about 37mph with the current gearing and voltage. Acceleration is awesome, and 37 is up or down hill. Going to 12 teeth is
still in the cards, but so it adding more voltage as originally designed.

The gauge is still not talking with the Alltrax, though I now have a terrific simulator of the controller all built out. Travis is sending me an analyzer, I will try a null modem just in case its something silly.

Once we are at 60 volts and over 40 (or 50 with 12 teeth) and the gauge is working, its all
about reworking to things to make it better. Given my lifestyle and liabilities, I am not sure I can literally get enough miles into do the job justice.

Bob got his offroad machine going, check this out.