Smart Mobility
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Explaining feedback requirements
To start off with, the mobility scooter should contain a (touchscreen-)display on which users can view data that is relevant to them and their current location/situation. For example, the estimated time of arrival can be displayed alongside a weather notification to ensure the user does not accidentally travel through a rainstorm.
Other items to display are of course the battery status, tire pressure, current velocity, available range with the current battery charge, connectivity information such as contacts and (video)calls and means of entertainment such as music and videos.
The purpose of the display and speakers is not only to entertain the user and provide useful information. It could also be seen as a more subtle attempt at keeping the user occupied in order to prevent them taking over the wheel without proper cause. Of course, this is at the same time a disadvantage considering the user will be less aware of their environment when viewing the screen.
Aside from the screen, there is also need for auditory feedback. Not only for the user of the mobility scooter, but also for their direct environment (such as pedestrians). In case of a sudden stop, the user will prefer to be informed of the reason. In case a pedestrian is not paying attention to the road (using their phone, for example) they should also receive a warning sound from the mobility scooter, preventing them from walking into it.
Considering there can be many physical reasons for a person to be in need of an autonomous mobility scooter, taking over control in case of an emergency should be possible through different approaches. Some users may want to use a joystick, while other can prefer voice controlled operation or even no further movement at all, meaning a physical kill-switch is a necessity.