Vehicle Haptic Alert System Using Dynamic Vibration Control
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Solution Overview
Problem
Drivers often ignore repetitive visual and audio warnings in vehicles, leading to a lower likelihood of safe operation due to their dismissive nature.
Innovation Solution
A computer-implemented method and system that provide haptic alerts based on the severity and duration of vehicle warnings, using vibrational actuators to deliver alerts that intensify in force, frequency, and duration as warnings persist, ensuring driver attention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If visual or audio warnings are used to alert drivers of safety or mechanical events, then drivers receive information about vehicle status, but drivers tend to ignore these warnings when they repeatedly occur
Solution Approach 1:
The patent applies mechanical vibration through haptic feedback devices (such as steering wheel vibrators or seat vibrators) to deliver tactile warnings to the driver. When a vehicle warning is detected, the system activates these devices to create noticeable vibrations that physically engage the driver, making it difficult to ignore the alert even during repetitive occurrences. This mechanical vibration approach transforms abstract visual/audio warnings into tangible physical sensations that demand driver attention and response.
2Reliability
If haptic alerts are intensified to grab driver attention, then driver responsiveness improves, but the system complexity increases
Solution Approach 1:
The system dynamically adjusts the intensity, frequency, and duration of haptic alerts based on the severity and persistence of vehicle warnings. The control system monitors warning conditions and automatically modulates the haptic feedback parameters - increasing vibration strength for severe issues, extending alert duration for persistent problems, and adapting frequency based on driver response. This dynamic adaptation allows the system to maintain high reliability across different scenarios without requiring overly complex manual configuration.
Solution Approach 2:
The system incorporates feedback mechanisms where the haptic alert intensity and duration are adjusted based on the driver's response to previous alerts. If the driver acknowledges or addresses the warning, the system reduces or stops the haptic feedback. If the warning persists or worsens, the system intensifies the alerts. This closed-loop feedback approach optimizes driver responsiveness while preventing unnecessary complex interventions, as the system adapts automatically to driver behavior patterns.
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 system effectively grabs the driver's attention by intensifying haptic feedback over time, reducing the likelihood of ignored warnings and enhancing vehicle safety and maintenance alert responsiveness.
Implementation Method 1
controlling at least one vibrational actuator to provide the at least one haptic alert
Data Source
AI summary
A system and method for providing haptic alerts within a vehicle that include receiving vehicle data associated with at least one vehicle warning. The system and method also include determining a severity associated with the at least one vehicle warning and determining a duration associated with the at least one vehicle warning. The system and method further include determining at least one haptic alert that corresponds to the severity and duration of the at least one vehicle warning and controlling at least one vibrational actuator to provide the at least one haptic alert based on the determined severity and duration of the at least one vehicle warning.