Vehicle Signal Catalog Overlays for Occupant Preference Control
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Solution Overview
Problem
The Vehicle Signal Specification (VSS) catalog does not define certain vehicle signals that are useful for operations associated with new vehicle features, such as face recognition, mood detection, air quality, and seat massage, leading to inadequate vehicle operation and control.
Innovation Solution
A custom signal catalog is defined using overlay files to add new vehicle signals, allowing for improved vehicle operation by updating preference settings and controlling actuatable components without altering the existing VSS data structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing VSS catalog is used, then the data structure remains stable and simple, but new vehicle features cannot be supported
Solution Approach 1:
The signal catalog is segmented into a base VSS catalog and separate overlay files. Each overlay file targets specific new features (face recognition, mood detection, air quality, seat massage) without modifying the core VSS structure. This allows incremental addition of functionality while preserving the original catalog's stability and simplicity.
Solution Approach 2:
Overlay files are nested within the existing VSS catalog framework. The overlay mechanism allows new signal definitions to be embedded within the established catalog structure, where overlay entries supplement and extend base catalog entries without replacing them. This nested approach maintains compatibility while enabling feature expansion.
2Adaptability or versatility
If the VSS catalog is modified to include new signals, then new features can be controlled, but the existing data structure must be altered
Solution Approach 1:
Overlay files are prepared and validated before being applied to the VSS catalog. The overlay mechanism pre-defines signal mappings, data types, and validation rules for new features, ensuring that when overlays are applied, they integrate seamlessly without disrupting the existing data structure. This preliminary preparation maintains structural stability while enabling feature expansion.
Solution Approach 2:
Instead of modifying the original VSS catalog structure, the overlay mechanism creates virtual copies or representations of new signals that map to the existing catalog framework. New feature signals are copied into the overlay layer with references to base catalog entries where applicable, preserving the original structure while providing access to extended functionality.
3Ease of operation
If comprehensive vehicle signals are defined, then vehicle operation is enhanced, but the signal catalog becomes more complex
Solution Approach 1:
The overlay mechanism provides a universal framework that can accommodate multiple new vehicle features through a single standardized approach. Rather than creating separate customization mechanisms for each feature (face recognition, mood detection, air quality, seat massage), the overlay system handles all extensions uniformly, simplifying the addition of comprehensive vehicle signals while maintaining manageable complexity through consistent structure and methodology.
Data Source
AI summary
In some examples, a system stores, in a memory, a signal catalog defining a vehicle signal representing a characteristic of a vehicle occupant in the vehicle. The system receives the vehicle signal defined by the signal catalog, the vehicle signal being based on measurement data from one or more sensors of the vehicle, and the system updates a preference setting of actuatable components of the vehicle based on the vehicle signal representing the characteristic of the vehicle occupant.