Yaw Rate Feedback Display for Fine Steering Stability
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Solution Overview
Problem
Drivers have difficulty recognizing minute vehicle behaviors, such as yaw rates, during fine steering adjustments, leading to inappropriate steering operations and increased wobbling, as these subtle changes are below the visual recognition threshold.
Innovation Solution
A vehicle-behavior notification device equipped with a yaw rate detector and notifier, using a microcomputer-based system that includes a yaw rate sensor and display unit to quantify and display the yaw rate, helping drivers recognize minute vehicle behaviors through visual and potentially audio cues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If drivers rely on visual recognition of vehicle behavior during fine steering adjustments, then they can maintain simple operation, but they fail to recognize minute yaw rates leading to inappropriate steering operations
Solution Approach 1:
The patent introduces a yaw rate detector and notifier as an intermediary system between the vehicle's actual behavior and the driver's perception. The detector captures minute yaw rates that are imperceptible to the driver, and the notifier translates this data into comprehensible notifications (visual, auditory, or haptic), thereby bridging the gap between actual vehicle behavior and driver awareness without requiring complex driver interpretation
Solution Approach 2:
The patent replaces the driver's natural visual recognition mechanism with an electronic sensing and notification system. Instead of relying on the driver's eyes and brain to detect subtle vehicle movements, the system uses a yaw rate detector (electronic sensor) to measure angular velocity and an notifier (display/audio/haptic device) to communicate this information, substituting biological perception with electronic measurement and communication
2Stability of the object's composition
If drivers perform frequent steering adjustments to compensate for unrecognized yaw rates, then they attempt to maintain vehicle stability, but they create excessive steering operations and increased wobbling
Solution Approach 1:
The patent implements a feedback loop where the notifier continuously informs the driver about the vehicle's actual yaw rate based on detector measurements. This feedback enables the driver to understand the true vehicle behavior, adjust steering input appropriately, and avoid both under-steering and over-steering corrections, thereby improving steering efficiency while maintaining stability
Solution Approach 2:
The system provides advance information about vehicle behavior through notifications before the driver would naturally perceive the yaw rate through visual cues. This preliminary notification allows the driver to anticipate and appropriately respond to vehicle behavior, preventing the need for reactive over-correction and reducing unnecessary steering operations
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 device enables drivers to accurately recognize and respond to minute yaw rates, reducing excessive steering operations and wobbling, by providing quantitative feedback on vehicle behavior, customizable to individual drivers' visual capabilities, and alerting them to unexpected yaw rates.
Implementation Method 1
a yaw rate detector configured to detect a yaw rate of a vehicle body of the vehicle
Data Source
AI summary
A vehicle-behavior notification device includes a yaw rate detector and a notifier. The yaw rate detector is configured to detect a yaw rate of a vehicle body of a vehicle. The notifier is configured to notify a driver who drives the vehicle of the yaw rate detected by the yaw rate detector.