Vehicle Safety Interface for Partitioned Service Access Control
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Solution Overview
Problem
The integration of advanced electronic and software components in software-defined vehicles increases system complexity, complicating the identification of safety hazards and cybersecurity vulnerabilities, and the implementation of effective mitigation strategies, especially in autonomous driving systems, while rapid technological advancements demand continuous updates to safety and security measures.
Innovation Solution
A safety and control interface is implemented to ensure freedom from interference among vehicle systems, utilizing memory protection units, hardware and software partitioning, and resource management techniques, along with APIs for autonomous driving, cloud, and client applications, to manage access and maintain safety goals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If advanced electronic and software components are integrated to enable software-defined vehicles, then vehicle functionality and performance are improved, but system complexity increases making safety hazard and cybersecurity vulnerability identification more difficult
Solution Approach 1:
The system is divided into distinct partitions including safety-critical partitions and non-safety-critical partitions. Each partition is isolated with defined boundaries and access control mechanisms. The safety-critical partition contains only essential safety functions, while non-critical functions are separated into different partitions, reducing overall system complexity by organizing components into manageable segments.
Solution Approach 2:
A safety interface acts as an intermediary layer between different software partitions and hardware components. This interface enforces access control policies, manages communication between partitions, and ensures safety requirements are met. The intermediary abstracts the complexity of inter-partition interactions, making the system easier to manage and verify.
2Productivity
If extensive connectivity and data analytics are implemented, then continuous improvement and personalization are enabled, but cybersecurity vulnerabilities increase
Solution Approach 1:
The system implements partitioning that separates connectivity and data analytics functions into isolated partitions with restricted access. Each partition has defined security boundaries and access control mechanisms, limiting the potential impact of cybersecurity threats. Critical safety functions are protected from external connectivity risks through these segmented architectures.
Solution Approach 2:
The safety interface pre-establishes access control policies and security constraints before connectivity operations occur. Authentication mechanisms and authorization rules are configured in advance to prevent unauthorized access. Security validation is performed proactively on data analytics requests before they can compromise system integrity.
3Adaptability or versatility
If rapid technological advancements are adopted, then vehicle capabilities are enhanced, but implementation of effective safety mitigation strategies becomes more complex
Solution Approach 1:
The safety interface implements universal access control mechanisms that work across multiple software partitions and hardware components. A single set of safety principles and access control policies applies consistently throughout the system, regardless of the specific technology or capability being implemented. This universal approach simplifies safety mitigation by providing a consistent framework rather than requiring separate solutions for each technology.
Solution Approach 2:
The system allows dynamic updates of access control policies and safety parameters through the safety interface. As new technologies and capabilities are introduced, the safety interface can adapt by updating authorization rules and access constraints without requiring complete system redesign. This dynamic capability enables continuous enhancement of vehicle capabilities while maintaining manageable safety complexity.
Data Source
AI summary
A safety and control interface for safe vehicle operation is described. In one or more implementations, the safety and control interface receives a request for a service from an application executed by a first processor. The safety and control interface determines whether the application has an application permission to access the service. The safety and control interface determines whether executing the service would maintain a safety goal established for the vehicle. A second processor executes the service requested by the application based on the safety and control interface determining that the application has the application permission to access the service and that executing the service responsive to the request would maintain the safety goal established for the vehicle.