Dynamic Seating System Haptic Feedback for Proactive Safety
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Solution Overview
Problem
Existing vehicle safety systems are primarily passive and destructive, providing limited proactive feedback to occupants during potential hazards, relying on fast reaction times and often requiring replacement after a single use, while active communication systems can be distracting with audible or visual alerts.
Innovation Solution
A dynamic seating system equipped with vehicle sensors, a calculation unit, and a seating assembly that provides haptic feedback by actuating seat and restraint components based on vehicle and environmental data, offering unobtrusive communication of vehicle conditions and increased safety through adjustable seat positions, tension, and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If passive safety systems (pre-tensioners, inflatable seatbelts) are used to provide fast reaction time, then safety response speed is improved, but the systems become destructive and require replacement after single use
Solution Approach 1:
The seatbelt system transitions from static passive safety components to dynamic active components that can adjust tension and inflation levels based on collision severity. The system uses sensors to detect collision parameters and dynamically controls actuators to provide appropriate restraint force, allowing the system to be reused across multiple collision events rather than being destroyed after single use.
2Loss of information
If audible or visual warnings are used to alert occupants to vehicle conditions, then communication effectiveness is improved, but driver distraction increases
Solution Approach 1:
The patent introduces haptic feedback through the seat and seatbelt as an intermediary communication channel between the vehicle system and the driver. Instead of using traditional audible or visual alerts that compete for the driver's attention, the system uses tactile sensations through contact surfaces the driver is already touching (seat, steering wheel via seatbelt), providing information without causing visual or auditory distraction.
Solution Approach 2:
The system replaces acoustic and optical communication systems with mechanical haptic feedback systems. Vibrators, actuators, and tensioning mechanisms embedded in the seat and seatbelt generate tactile sensations that convey vehicle condition information to the driver through touch, substituting the need for audible beeps or visual icons on displays.
3Device complexity
If traditional passive safety systems are used, then system simplicity is maintained, but proactive feedback capability is lost
Solution Approach 1:
The patent makes the seating system multi-functional by combining traditional passive safety functions (restraint during collision) with active communication functions (haptic feedback about vehicle conditions). The same seat and seatbelt structure serves both as a safety restraint system and as a communication interface, eliminating the need for separate alert systems while providing proactive feedback before collisions occur.
Solution Approach 2:
The system merges the previously separate functions of passive safety restraints and active communication alerts into a single integrated haptic feedback system. The seatbelt and seat components that provide physical restraint are also equipped with actuators and sensors that generate tactile feedback signals, combining safety and communication functions into one unified system.
Data Source
AI summary
A dynamic seating system includes one or more vehicle sensors that output information describing one or more operating characteristics of a vehicle; a calculation unit configured to determine a feedback level based on a degree of deviation of the one or more operating characteristics of the vehicle from a predetermined state; and a seating assembly configured to actuate based on the feedback level.