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Requirement – Automated Driving Function States

ADF must fundamentally ensure safety, even when the real-life driving context changes. Simultaneously, it’s crucial to consider its operation under specific conditions and states. It’s assumed that the system has redundancy, allowing the ADF to perform a fallback at all times. However, system redundancy isn’t inherently designed but needs to be defined through a safety analysis. Consequently, any supplementary information pertinent to the vehicle’s safe operation must be effectively relayed to the driver. A testing methodology based on simulation offers a structured way to assess the system’s operational state under a broad range of conditions.The following generally accepted operational scenarios may be considered:

– Not operational – ADF not available

– Operational without notifications – ADF available but unobservable state

– Operational with some notifications – ADF available with limitations on the state

– Operational with all notifications available – ADF available

Main Question

Are the ADF states defined (e.g. non-operational, operational without notifications, operational with some notifications, operational with all notifications available)?

Sub-Questions

  1. Are the criteria or conditions surrounding the states of ADF identified?
  2. Have the triggers for state transition identified?
  3. Do the defined states cover the overall design and operation of the ADF?
  4. Are the mechanisms for transitions between these operational states clearly described?
  5. Are any conditions or scenarios where the ADF might transition between states unexpectedly? 
  6. Is there a defined mechanism for the how and what the notificaitions would be in each of the state (if applicable) ?