Sub-trip feature
Added:25/10/2024
Contributor:FAME
Current consensus
Sub-trip feature is a driving automation system feature equipped on a conventional vehicle that requires a human driver to perform the complete DDT for at least part of every trip.
Explanation
Note: Sub-trip features require a human driver to operate the vehicle between the point-of-origin and the boundary of the feature’s ODD and-or after leaving the feature’s ODD until the destination is reached (i.e., trip completion).
- Number
- Example 1:A Level 1 adaptive cruise control (ACC) feature performs longitudinal vehicle motion control functions to support the driver in maintaining consistent headway to a lead vehicle in its lane when travelling at higher speeds.
- Example 2:A Level 2 highway feature performs lateral and longitudinal vehicle motion control functions to support the driver in maintaining position within its lane of travel, as well as consistent headway to a lead vehicle in its lane when travelling at higher speeds.
- Example 3:A Level 3 traffic jam feature performs the complete DDT on a fully access-controlled freeway in dense traffic, but requires a human driver to operate the vehicle upon ODD exit (e.g., when traffic clears, as well as before entering the congested freeway, and again upon exiting it).
- Example 4:During a given vehicle trip, a user with a Level 4 automated parking feature dispatches the vehicle in driverless operation for the purpose of finding a parking space in a nearby designated parking facility. Following a period of shopping, the user retrieves the vehicle via dispatch in order to begin his-her trip home.
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