Feature request: additional speed and/or duty based variable tailback

[jaamesd]

The general intent is to implent a concave speed/duty based variable tiltback short of pushback alerts such as:

• -0.2 deg/1k erpm between 0-10k erpm
• 0.5 deg/1k erpm between 12k erpm (and/or 0.5 deg/pct or duty cycle above 80%, 0.5 deg/s)

Reasons for having this separate from speed based pushback alerts proposed #46 are:

• so that softer, subtler feedback can be provided to the rider in the normal operating regime while retaining harder when operating closer to the board or rider's physical limits
• so users can change their alert thresholds according to personal preference or local regulatory requirements without affecting tune
• to avoid alarm/alert fatigue when used with companion mobile apps

The problem with the current settings for this use case is constant tiltbacks can feel awkward/jarring when velocity oscillates around 0, e.g. while navigating technical terrain or urban obstacles. Reducing the maximum nose angling speed to something extremely low e.g. 0.5 deg/sec masks the issue but at the cost of limiting variable erpm.

I think the general options are:

1. restricting the tiltback speed setting so as to only apply apply to constant tiltback
2. adding a second variable tiltback setting group
3. splitting constant/variable tiltback each with own speed setting
4. some combination of the above

[lukash]

Implemented in #52.

Sorry, wrong issue 😀

[lukash]

Having trouble to follow. You are mixing two things, constant/variable tiltback and speed/duty pushback alerts. It is ultimately not clear if you're requesting some change to one of the features or both and what it actually should be. The general intent is also not entirely clear to me, so maybe start with that...

[jaamesd]

I think broadly theres 2 stories that are somewhat fungible

1. Have a slow-acting or highly filtered pushback for hugging some speed/duty threshold short of triggering an alert.
2. Non-linear speed based variable tiltback, dual-linear is probably simplest.