Vehicle HUD Display Position Control for Smooth Attitude Correction
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Solution Overview
Problem
Existing image display systems, such as head-up displays on vehicles, face challenges in smoothly adjusting the display position of images based on changes in the vehicle's attitude angle, leading to user discomfort due to sudden changes in the image position.
Innovation Solution
A display control device that adjusts the display position of images projected onto a vehicle's windshield by calculating the vehicle's attitude angle from acceleration data and setting a correction amount per unit time, allowing for gradual adjustments to maintain image stability and user comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the display position is adjusted based on attitude angle changes, then the image stability is improved, but the adjustment becomes sudden and causes user discomfort
Solution Approach 1:
The patent applies dynamics by making the correction amount variable rather than fixed. The correction amount per unit time is dynamically adjusted based on the change amount of the attitude angle, allowing the system to adapt its response characteristics to different driving conditions and attitude changes, thereby achieving both stability and comfort.
Solution Approach 2:
The patent changes the parameter of correction amount based on the attitude angle change amount. By adjusting the correction amount per unit time in accordance with the attitude angle variation, the system optimizes the display position adjustment to maintain image stability while preventing sudden changes that would cause user discomfort.
2Speed
If the correction amount is increased to respond to attitude angle changes, then the display position control responsiveness is improved, but the image position changes suddenly causing user discomfort
Solution Approach 1:
The system dynamically adjusts the correction amount based on the rate of attitude angle change. When attitude changes are rapid, the correction amount is increased to maintain responsiveness, while when changes are gradual, the correction amount is reduced to ensure comfort, achieving a balance between responsiveness and user comfort.
Solution Approach 2:
The correction amount parameter is changed according to the attitude angle change amount. This parameter adaptation allows the system to respond appropriately to different magnitudes of attitude changes, maintaining control responsiveness while avoiding excessive correction that would cause user discomfort.
3Manufacturing precision
If the correction amount per unit time is adjusted in accordance with attitude angle change, then the display position control precision is improved, but the control complexity increases
Solution Approach 1:
The patent changes the correction amount parameter based on measurable attitude angle data. By using the attitude angle change amount as the basis for adjusting the correction amount, the system achieves precise display position control without requiring complex control algorithms, thereby improving precision while limiting complexity increase.
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 solution effectively improves the control of image display positions, reducing user discomfort by smoothly adjusting image positions in response to attitude angle changes, ensuring clear and stable visual feedback during vehicle movements.
Implementation Method 1
acquiring a detection value of an acceleration acting on the mobile body; calculating an attitude angle of the mobile body based on the detection value of the acceleration
Data Source
AI summary
A display control device is configured to control a display position of an image in an image projector configured to project the image onto a display object of a mobile body. The display control device includes a processor; and a memory storing instructions that, when executed by the processor, cause the display control device to perform operations including: acquiring a detection value of an acceleration acting on the mobile body; calculating an attitude angle of the mobile body based on the detection value of the acceleration; and setting a correction amount of the display position for controlling the display position of the image to be projected onto the display object by adjusting a correction amount per predetermined unit time in accordance with a change amount of the attitude angle in a predetermined period.