Vehicular Display Apparatus for Dynamic Acceleration Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicular display apparatuses fail to effectively inform drivers about critical vehicle states and the likelihood of skid prevention controller operation, as they rely on fixed threshold values that do not account for varying road conditions and vehicle behaviors.
Innovation Solution
A vehicular display apparatus that includes an acceleration sensor, a display device, and a storage unit to show the current acceleration magnitude and direction, along with past acceleration data when the skid prevention controller applied braking forces, allowing drivers to understand critical vehicle states and predict potential skid prevention controller operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed threshold value is used for warning output, then the device complexity is reduced, but the adaptability to different road conditions and vehicle states deteriorates
Solution Approach 1:
The patent applies dynamics by making the threshold value changeable rather than fixed. The threshold is dynamically adjusted based on vehicle state (detected by sensors like acceleration sensors) and road conditions, allowing the warning system to adapt to different driving scenarios such as turning, braking, or varying road surfaces without increasing system complexity
Solution Approach 2:
The patent changes the parameter of threshold values from static to variable. By allowing threshold values to be modified based on detected vehicle states and environmental conditions, the system achieves adaptability to different road conditions and vehicle operations while maintaining a relatively simple device structure
2Ease of operation
If only current acceleration magnitude is displayed, then the ease of operation is improved, but the information completeness for understanding critical vehicle states deteriorates
Solution Approach 1:
The patent segments the display information into multiple components: current acceleration magnitude, threshold value, and warning indication. This segmentation allows the display to remain simple and easy to operate while providing comprehensive information about critical vehicle states by presenting key data elements separately and clearly
3Ease of operation
If warning output is provided without contextual information, then the ease of operation is improved, but the usefulness for driver understanding deteriorates
Solution Approach 1:
The patent implements feedback by providing warning output that is contextually linked to the current vehicle state and threshold conditions. The system feeds back information about why a warning is triggered (comparing current acceleration against state-dependent thresholds), giving drivers meaningful context about vehicle stability and road conditions while maintaining operational simplicity
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
Enables drivers to understand and predict when the skid prevention controller will operate by displaying current and past acceleration data on a shared scale, enhancing safety by providing feedback on vehicle stability and road conditions.
Implementation Method 1
an acceleration sensor for detecting an acceleration generated on the vehicle
Data Source
AI summary
A vehicular display apparatus on a vehicle includes a display device which displays a magnitude of an acceleration which is being detected by an acceleration sensor on a display unit, and also displays a magnitude of an acceleration detected by the acceleration sensor when an ESC controller generated a braking force on road wheels on the display unit.