Spatial Auditory Alerts for Vehicle Driver Awareness
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Solution Overview
Problem
Modern vehicles face the challenge of driver distraction due to numerous sensor systems and visual alerts, which require the driver to glance at warning indicators or screens to understand the nature of alerts, leading to potential safety issues.
Innovation Solution
Implementing spatial auditory alerts that use a controller and distributed speakers to simulate sound emanating from specific locations, allowing drivers to perceive alerts without visual distraction, by analyzing outputs from exterior sensors and generating sound objects based on vehicle signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual alerts and warning indicators are used to alert drivers of vehicle conditions, then driver awareness of vehicle conditions is improved, but driver distraction and safety risks increase due to required glances at screens
Solution Approach 1:
The patent replaces visual alert systems with an acoustic alert system that uses speakers distributed throughout the vehicle interior. The controller generates auditory warnings that convey vehicle condition information through sound rather than requiring visual attention, thereby maintaining driver awareness while eliminating the need to glance at screens and reducing distraction-related safety risks.
2Reliability
If multiple sensor systems and visual warnings are implemented to monitor vehicle conditions, then comprehensive vehicle monitoring is achieved, but system complexity and driver cognitive load increase
Solution Approach 1:
The patent implements a multi-functional acoustic alert system where a single controller integrated with multiple sensor systems (blind spot detection, lane detection, rear cross-traffic alert) uses a unified set of distributed speakers to convey all vehicle condition warnings. This universal acoustic interface consolidates multiple warning functions into one system, reducing overall complexity while maintaining comprehensive vehicle monitoring capability.
Solution Approach 2:
The patent merges multiple separate warning systems into a unified acoustic alert system. The controller integrates inputs from various sensors and combines their warning functions, delivering all alerts through a coordinated acoustic field created by distributed speakers. This merging reduces the number of separate visual indicators and screens, simplifying the system while preserving comprehensive monitoring.
3Loss of information
If visual indicators are used to communicate alert information, then detailed information can be displayed, but driver response time increases due to visual processing requirements
Solution Approach 1:
The patent substitutes visual information processing with acoustic information processing. The distributed speakers convey alert information through sound waves that the driver can perceive without visual engagement. This substitution enables faster driver response times since auditory processing does not require the driver to divert visual attention from the road, while still communicating comprehensive alert information through the acoustic field.
Data Source
AI summary
A vehicle includes a plurality of sensors including exterior sensors. Vehicle signals, such as those derived from sensors, are processed to detect alertable conditions and each alertable condition is represented by a created software object. A location is associated with each software object, such as corresponding to a location of an exterior feature that gave rise to the alertable condition. The software object is updated over time according to the vehicle signals, such as by updating the location according to movement of the obstacle. The software objects are processed to drive an array of speakers effective to simulate a sound originating from the location associated with the software object. The sound generated by the speakers may be repeated chimes having a volume and period determined according to the location.