Good read22 Dec 2018 21:08
https://www.daimler.com/innovation/case/autonomous/interview-hafner-2.html
The S 500 INTELLIGENT DRIVE by Mercedes-Benz on an autonomously driven journey.
Let’s start with Level 3. What will automated driving be like in this variant?
In this case, drivers will only give up their control of the vehicle part of the time. This variant is especially suited for the relatively uncomplicated traffic on highways. The vehicle signals to the driver when it’s ready to take over. Before it does that, it conducts a series of system checks to see if all the sensors are working and if the correct maps are being used for the vehicle’s current location. If everything is in order, the driver only needs to push a button for the vehicle to take over. Within certain limits, the driver can then do other things, such as working on e-mails via the onboard system or watching a video. However, the driver must be able to quickly take control of the steering wheel again. By “quickly” we currently mean within about five seconds. That’s why the monitoring system has to make sure that the driver doesn’t fall asleep, for example.