Diamondback said:
i too could live with only 2 presets for battery packs.
OK everyone and thanks for the input, the voices have been heard! We're back down to just batteries A&B now, and space has been freed up for more preset stuff. Right now, this really has to be the last "preliminary" V3 firmware though. Here are some of the updates:
First, there are now two no-throttle modes. Previously, if the input throttle was set to OFF, then the CA's output would go to full WOT mode, and this way the CA3 could be used as a legacy CA2 throttle over-ride mode. However, there are also cases where you want to disable the throttle, but not have the output go high by default, and that can be done by setting the mode Off ( 0V ). If this mode is enabled in one of the presets, then the throttle input of the CA is completely ignored.
View attachment 6
Some of the other setup menu items were changed to more natural units. So for instance, in the preferences -> averaging menu, it now shows the display averaging period in seconds rather than in an arbitrary number of 1-7.
Similarly, the threshold speeds for when the pedal cadence sensor is considered engaged and disengaged is now expressed directly in RPM, rather than in time period units of 18mS:
The behaviour of both the torque and auto PAS modes has been tweaked as well. The torque mode now always averages over the last two full pedal rotations, instead of just 1, which seems to improve the smoothness just fine without causing much penalty in responsiveness. It is also now set up to scale based on your watts rather than your Nm of pedal torque, which is more intuitive. So you input the scale factor of how many electrical watts you want for every human watt of power:
And you also set the threshold human watts that you want to put out before the electric starts to help:
If the auto-PAS mode is selected, you can now set the level of watts that you want to have kick in automatically while pedaling, it no longer defaults to full throttle output.
The PAS watts that you set here can also be scaled by the auxilliary input via the "PAS Level" option. So you can dial in a nice background assist value and then have the throttle at your disposal for extra juice whenever required. For the last few days I've been riding with a 3 speed switch connected to the Aux input, set to give a PAS power level of 250, 500, and 750 watts. Then my throttle gives about 1200W. I've almost been preferring this arrangement over the proportional torque mode.
On the throttle ramping rates, the down ramp rate is now also tied to each preset like the up ramp. And with the fast ramp you can now set the threshold amps where the CA switches over from the fast rate to the (presumably slower) Up Ramp rate, allowing you to tweak this to suit the ramp-up current draw of your motor:
Other changes:
- Temperature reading is now averaged to be a lot more stable
- 10K NTC thermistor lookup table updated to 32 reference points for better accuracy, especially at high temps.
- Additional name options (including no name) given for each mode preset
- MaxThrotSpeed for PAS modes is now tied to each preset, rather than being a global setting
- Timing issues fixed that could cause occasional "T_Err" under some special circumstances
- Bug fix that could cause voltage and amperage display to briefly show wild numbers after going through setup and running a zero amps process
I hope this addresses just about all of the outstanding little details that were in want of tweaking. I'm going to give the firmware to Teklektik for a couple days since he has a knack for finding bugs or quirks that I may have overlooked, and then will make it available here and then in all the CA3s going out the door!
