Vehicle Seat Haptic Alert Actuators for Collision Warning
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Solution Overview
Problem
Current driver alert systems rely on visual and auditory alerts, which may not be effective in all situations, particularly for alerting drivers to collision threats outside their line of sight or for older or hearing-impaired drivers, necessitating the development of more effective haptic alert mechanisms.
Innovation Solution
Incorporating actuators into vehicle seat bolsters to provide directional haptic responses, allowing for more intuitive and localized alerts that can indicate the direction and severity of potential collisions, thereby enhancing driver awareness and reaction time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual and auditory alerts are used to warn drivers of collision threats, then the alert system can provide information about potential dangers, but the alerts may not be effective for drivers with hearing impairments or in situations where the driver cannot see or hear the alerts
Solution Approach 1:
The alert system is segmented into multiple independent alert modalities (visual, auditory, and haptic) that can operate separately or in combination. Each alert type targets different sensory channels, ensuring that drivers with specific impairments can still receive effective alerts through their functional senses.
Solution Approach 2:
The seat assembly is designed to serve multiple functions: it provides normal seating support and simultaneously functions as a haptic alert device. The seat back or seat bottom can deliver tactile feedback to alert drivers of collision threats, making the system universally accessible to all drivers regardless of their sensory capabilities.
2Loss of information
If haptic devices are incorporated into the seat assembly to provide directional alerts, then the system can indicate the direction and severity of potential collisions, but the device complexity increases
Solution Approach 1:
The haptic alert mechanism is merged with the existing seat assembly structure. The seat back or seat bottom itself serves as the haptic actuator, eliminating the need for separate alert devices and reducing overall system complexity while still providing directional collision threat information.
Solution Approach 2:
The seat assembly performs multiple functions simultaneously: providing seating support, indicating alert direction, and communicating threat severity. This multi-functionality reduces the need for additional components that would otherwise be required to convey the same information.
3Loss of time
If actuators are integrated into the seat bolsters to provide localized haptic feedback, then the system can improve driver awareness and reaction time, but the manufacturing complexity increases
Solution Approach 1:
The haptic feedback capability is localized to specific regions of the seat assembly where actuators are integrated into the seat bolsters. This allows targeted tactile feedback at precise locations to indicate alert direction, improving driver awareness without requiring haptic capabilities throughout the entire seat structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of haptic seat alerts enables quicker and more accurate detection of collision threats, improving driver response and safety, especially in situations where visual or auditory alerts may be inadequate, and increasing customer satisfaction with side blind zone and lane change alert systems.
Implementation Method 1
a haptic device, such as an actuator, is integrated into the seat assembly to generate haptic feedback
Data Source
AI summary
A vehicle seat assembly is provided. The assembly includes a seat back member and a haptic alert assembly. The haptic alert assembly includes a first actuator incorporated into the seat back member. The first actuator is configured to generate at least a first portion of a haptic alert.