Posts

Showing posts from October, 2022

Talk: Autonomous Vehicles Standards & Open Challenges

Image
 Here is my talk from the October 2022 ISO 26262/SOTIF conference. Assuming you follow the relevant standards (ISO 26262, ISO 21448, ANSI/UL 4600) in practice teams are finding the following topics difficult: Fail operational architecture Building an accurate, predictive world model Safety beyond the driving task (system safety, traffic system interactions) Determining how safe is safe enough in an equitable way Link to slides (Slides only at this time)

AV Safety with a Telepresent Driver or Remote Safety Operator

Image
Some teams propose to test or even operate autonomous vehicles (AVs) with a  telepresent driver or remote safety operator.   Making this safe is no easy thing. Typically the remote human driver/supervisor located at a remote operating base, although sometimes they will operate by closely following the AV test platform in a chase vehicle for cargo-only AV configurations. Beyond the considerations for an in-vehicle safety driver, telepresent safety operators have to additionally contend with at least: ·         Restricted sensory information such as potentially limited visual coverage, lack of audio information, lack of road feel, and lack of other vehicle physical cues depending on the particular vehicle involved. This could cause problems with reacting to emergency vehicle sirens and reacting to physical vehicle damage that might be detected by a physically present driver such as a tire blow-out, unusual vibration, or strange vehicle noise. Lack of road feel might also degrade the dr

The Software Defined Vehicle Is Still More Wish Than Reality

Image
Here is a Software Defined Vehicle video that covers a lot of ground. Car companies are all talking a big game about adding software to their vehicles, including big data, software updates, connectivity, and more. The possibilities are exciting, but you only have to read the news to know that the road to get there is proving bumpier than they'd like. ( See this story too. ) Getting the mix of Silicon Valley software + automotive system integration + vehicle automation technology right is still a big challenge. This video talks about the possibilities. But to get there, OEMs still have a lot of work to do achieving a viable culture that addresses inherent tensions: Cutting edge cloud software vs. life critical embedded systems Role of automation vs. realistic expectations of human drivers A shift from "recall" mentality to continuous improvement processes Fast updates vs. assured safety integrity Role of suppliers vs. OEM, especially for autonomous vehicle functions Monet

Enhanced personal safety for autonomous vehicles

Image
AV safety discussions often get quite technical. But there are aspects of safety that have a lot more to do with personal safety concerns. It is important that AV technology deployments enhance rather than degrade personal safety. Do autonomous vehicles improve personal safety compared to alternatives? An important feature of a personally owned human-driven vehicle is having more control over personal safety. A locked private vehicle provides a measure of physical protection against potential threats to personal safety. In a single occupancy conventional vehicle the driver can make personal safety choices beyond the obvious one of not sharing a vehicle with a stranger as would be the case in a taxi or ride-share vehicle. [1] The availability of a single-occupancy AV might extend this safety benefit to those who cannot drive or do not have resources to own a private vehicle. Example safety choices beyond just riding solo include debarking in an escort-provided portion of a parking lo

Gatik Announcement -- Is it real safety? Or just AV safety theater?

Image
Gatik just announced it has completed an extensive third-party safety review of its system as part of deploying fully driverless commercial operations in Canada. But the announcement raises many questions as to how much it really assures safety. The autonomous vehicle safety arena is full of misinformation, disinformation, safety theater -- and players earnestly trying to do the right thing. Companies routinely employ ambiguous language, half-truths, and outright propaganda to deploy safety theater. But some companies use unambiguous statements of conformity to safety standards to show they are really doing safety . Which bucket does Gatik fall into?  Let's take a look at the signs from their press release. Gatik claims that their third-party review covers safety and security. This was done with "a team of third-party experts." No mention of who these experts might have been, nor their qualifications. The gold standard is an accredited third party assessor such as TUV SU