Awesome, a patent with some actual information. I noticed poking around the OW+'s Bluetooth Low Energy API that it reports a live "Safety Headroom" value between 0-100. I'm working on a handsfree iOS app now to allow you to monitor that, battery, speed, foot sensor status etc. via an earbud and would really appreciate anybody who could help test. Send me a DM with your email and I'll add you to the beta group. Will announce more generally when it's a little more polished.
Or if you're a developer type, build it yourself here: https://github.com/OnlyInAmerica/OneWheelMonitor