Vehicle Head-Up Display Automatic Height Adjustment
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Solution Overview
Problem
The existing head-up displaying systems in vehicles are inconvenient as they require manual adjustment to find a comfortable viewing position for the projection image, which differs among individuals due to varying driver heights.
Innovation Solution
A head-up displaying system that includes a projector, a camera, and a seat detecting module, which automatically detects the driver's eye locations and seat position to calculate and adjust the projection image height, ensuring it is viewed comfortably without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the projection image height is fixed at a standard level, then the device complexity is reduced, but the adaptability to different driver heights deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of the projection image height based on real-time detection of driver eye position. The head-up controller dynamically modifies the projection parameters according to the detected horizontal and vertical distances, allowing the system to adapt to different drivers and seating positions automatically, thus resolving the contradiction between fixed structure and adaptability.
Solution Approach 2:
The system changes the projection image height parameter based on detected driver characteristics. By calculating the actual vertical distance between the driver's eyes and the reference point, and adjusting the projection image height accordingly, the system achieves adaptability without complex mechanical structures, using parameter modification instead.
2Device complexity
If manual adjustment of projection image height is required, then the device complexity is reduced, but the ease of operation deteriorates
Solution Approach 1:
The system performs self-adjustment by automatically detecting the driver's eye position through the camera and seat position through the seat detecting module, calculating the appropriate projection height, and adjusting it without any manual intervention. This eliminates the need for drivers to manually search for comfortable viewing positions, significantly improving ease of operation.
Solution Approach 2:
The system uses feedback from the camera detection and seat position detection to automatically adjust the projection image height. The head-up controller continuously receives detection results and modifies the projection parameters accordingly, creating a closed-loop system that automatically optimizes the viewing position for each driver.
3Adaptability or versatility
If the projection image height is adjusted for each driver, then the adaptability improves, but the loss of time increases
Solution Approach 1:
The system performs preliminary detection of the driver's eye position and seat position as soon as the driver enters the vehicle or starts the engine. By detecting and adjusting the projection image height in advance before the driver needs to view information, the system minimizes the time loss associated with adjustment, making the process transparent and seamless for the driver.
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 automatically positions the projection image at an optimal height for each driver, enhancing comfort and reducing distractions while driving by eliminating the need for manual adjustments.
Implementation Method 1
projects information onto a front windshield in a form of text and image using the optical reflection principle
Implementation Method 2
projects information onto a front windshield in a form of text and image using the optical reflection principle
Data Source
AI summary
A vehicle, a head-up displaying system and a method for adjusting a height of a projection image thereof are provided. The system includes a projector, a camera, a seat detecting module and a head-up controller. The camera is configured to detect an image having locations of the eyes of the driver and a predetermined reference point. The seat detecting module is configured to detect a position of a seat of the driver in the vehicle so as to obtain an actual horizontal distance between the eyes of the driver and the predetermined reference point. The head-up controller is configured to adjust a height of the projection image projected by the projector automatically according to the actual vertical distance. The system automatically controls the height of the projection image, and the projection image may be comfortable for the driver to view without any manual intervenes.