Baidu and other autonomous driving technology developers testing vehicles on public roads in California have had to release more details as to why their cars “disengaged” from autonomous control.
A disengagement is when the human driver testing the car has to take over from the automated system or when the system itself simply fails. The consumer rights organization Consumer Watchdog has claimed the eight reports “further confirmed that self-driving cars cannot actually drive themselves”.
Looking at Baidu’s mileage, its cars drove a total of 1,971.74 miles (3,173km) on California’s roads between August 31, 2016 and November 30, 2017. There were a total of 48 disengagements, meaning one for every 41 miles (66km). Of the 1,971 miles driven, 1,323.78 were driven in November 2017 alone, with 9 disengagements. Remove this month from the figures and the disengagements rise to one every 16.6 miles (31.6km).
The new level of detail in reporting of disengagements required by the DMV shows the problems the systems are having. Rather than unusual road conditions or events, the faults are with the software and perception sensors struggling to make sense of everyday things such as parked cars.
For example, Baidu’s initial report gave the example of “Disengage for unwanted maneuver” which turned out to be “Delayed perception for pedestrian running into the street” in the new report. “Disengage for planning discrepancy” became “Undesired planning near large bush on right caused braking with traffic behind”.
Pedestrians and cyclists also provided problematic for the system. In every case, the human driver was there to take over and no incidents of any collisions involving Baidu have been reported. Baidu’s figures also show a clear improvement in November 2017 when it managed on average 147 miles between engagement.
The Consumer Watchdog welcomes the fact that companies were required to provide more detail.
“The companies tried to hide behind technical jargon and provided limited, vague, and confusing information about robot car performance. It’s great to see the DMV doing its job by requiring the companies that tried to obfuscate important information in their reports to provide supplemental details,” said John M. Simpson, Consumer Watchdog’s Privacy Project and Technology Director.
Chinese-backed NIO also submitted an initial report but as it had not actually begun public road testing in the reporting period so it reported zero disengagements. This was the same for Tesla.