Vehicle HUD Mirror Module Adaptation
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Solution Overview
Problem
Existing head-up displays for motor vehicles are not easily adaptable to different vehicle types and windshield variants, requiring component replacement and not accounting for production tolerances and assembly variations.
Innovation Solution
A head-up display system with a mirror module comprising multiple mirrors with varying curvatures, including folding and aspherical mirrors, that can be adjusted and positioned to match specific vehicle-specific windshield variants, allowing for universal use without replacing components, and an actuator for precise and easy alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a head-up display is designed for a specific windshield variant, then the image quality and focus are optimized for that variant, but the display cannot be easily adapted to different vehicle types and windshield variants
Solution Approach 1:
The patent employs movable mirrors that can be adjusted to different positions and orientations. The mirror module includes at least two mirrors with different curvatures that can be moved into the beam path, allowing the optical system to be dynamically reconfigured for different windshield variants while maintaining optimal image quality for each configuration.
Solution Approach 2:
The patent changes the curvature parameter of the mirrors to adapt to different windshield variants. By providing mirrors with different curvatures and selecting the appropriate one for each windshield type, the system maintains precise optical matching across various vehicle types without requiring complete redesign.
2Adaptability or versatility
If multiple mirrors with different curvatures are included in the mirror module, then adaptability to different windshield variants is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple mirrors with different curvatures into a single integrated mirror module. This modular design allows the mirrors to be managed as a unified assembly, reducing the complexity of handling and installation compared to having separate mirror systems for each windshield variant.
Solution Approach 2:
The mirror module is designed as a universal component that can serve multiple windshield variants. By integrating multiple mirrors with different curvatures into one module, the system achieves multi-functionality, allowing a single head-up display unit to be adapted to various vehicle types without requiring multiple specialized mirror assemblies.
3Measurement precision
If the head-up display is designed for precise alignment with specific windshields, then the virtual image position and distortion correction are optimized, but installation becomes difficult when vehicle types and assembly variations differ
Solution Approach 1:
The patent incorporates movable and adjustable mirror elements that can be positioned and oriented during installation. This dynamic adjustment capability allows installers to compensate for variations in vehicle assembly and windshield positioning, achieving precise virtual image placement and distortion correction without requiring extremely tight manufacturing tolerances.
Solution Approach 2:
The mirror module is pre-configured with multiple mirrors of different curvatures, allowing the appropriate mirror to be selected and positioned before final installation. This preliminary preparation simplifies the installation process by reducing the need for complex on-site adjustments while still achieving precise alignment for the specific vehicle type.
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 the head-up display to be used across various vehicle and windshield variants without component replacement, providing a stable and distortion-corrected virtual image at a consistent distance, facilitating easy installation and user-adjustable image positioning.
Implementation Method 1
at least one mirror module (16) for deflecting a beam path (30) which is able to be emitted by the imaging unit (12)
Implementation Method 2
the aspherical mirror, which is also referred to as concave mirror, main mirror or correction mirror, parallelizes the light rays of the beam path (30) in the process, usually magnifies the image of the head-up display and usually compensates distortions which arise from the curvature of the windshield
Data Source
AI summary
At least one imaging unit for emitting an image in the form of a beam path and at least one mirror module for deflecting the beam path which is emitted by the imaging unit are included in a head-up display for a motor vehicle. The mirror module includes at least two different mirrors which are movable into the beam path, and a respective curvature of the mirrors is matched to respective vehicle-specific windshield variants. The head-up display may be arranged in the motor vehicle by selecting one of the mirrors whose curvature is matched to the windshield variant, embodied in a vehicle-specific manner, and arranging the selected mirror in a region through which the beam path extends in the case of an activated imaging unit.