US Patent 10915101 Context-dependent alertness monitor in an autonomous vehicle

Various examples are directed to systems and methods for operating an autonomous vehicle. A vehicle system may configure an alertness monitor to send an alert prompt to a cockpit output device in response to not detecting a user input for an input threshold time. The vehicle system may detect an alertness condition change based at least in part on vehicle data describing the vehicle. In response to detecting the alertness condition change, the vehicle system may modify an alertness system parameter.