Asymmetric Onboard Screen Linkage for Clear Driver and Passenger Viewing
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Solution Overview
Problem
Existing automotive onboard screens face issues with large field of view obstruction when turning towards the driver side and a small gap between the screen and the combination switch and steering wheel when turning towards the front passenger side due to limitations in instrument panel styling.
Innovation Solution
An adjusting device with a multi-link mechanism having an asymmetric structure that allows the onboard screen to deflect and translate towards the driver or front passenger side, utilizing a first and second link mechanism with different motion strokes to achieve adjustment, driven by first and second driving assemblies to ensure the screen bracket moves away from the driver side during the adjustment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the onboard screen turns towards the driver side to improve driver comfort, then the driver's viewing angle is improved, but the field of view is largely blocked
Solution Approach 1:
The screen is configured to move along a three-dimensional trajectory that combines lateral deflection towards the driver side with simultaneous translation towards the front passenger side. This multi-dimensional motion allows the screen to improve driver viewing angle while maintaining adequate lateral clearance from the driver, thus avoiding field of view obstruction
Solution Approach 2:
The multi-link mechanism provides dynamic adjustment capability, allowing the screen to change its position and orientation based on different usage scenarios. The screen can dynamically switch between different positions (driver-side deflection for driver use, centered position for neutral state) to optimize both viewing comfort and field of view
2Ease of operation
If the onboard screen turns towards the front passenger side to provide comfortable viewing angle, then front passenger viewing comfort is improved, but the gap between the screen and the combination switch and steering wheel becomes small, likely to cause interference
Solution Approach 1:
When the screen deflects towards the front passenger side, it simultaneously translates in the longitudinal direction to maintain an appropriate distance from the steering wheel and combination switch. This two-dimensional coordinated motion ensures that the front passenger receives comfortable viewing angle while avoiding interference with the driver's controls
Solution Approach 2:
The adjustable mechanism enables the screen to dynamically position itself towards the front passenger side only when needed, while maintaining a safe distance from the steering wheel area through coordinated longitudinal translation, thus providing flexible viewing comfort without causing interference
3Device complexity
If a symmetric adjustment mechanism is used for the onboard screen, then the structure is simple, but it cannot simultaneously solve field of view obstruction and interference with steering wheel components
Solution Approach 1:
The patent employs an asymmetric multi-link mechanism where the left and right linkages have different configurations and motion strokes. This asymmetric design enables the screen to follow a non-symmetric trajectory during adjustment, allowing it to deflect towards the driver side while translating forward to avoid field of view obstruction, and deflect towards the front passenger side while maintaining clearance from steering wheel components
Data Source
AI summary
An adjusting device for an onboard screen includes a screen bracket suitable for mounting an onboard screen; a multi-link mechanism, wherein the multi-link mechanism is movably connected to the screen bracket, the multi-link mechanism has an asymmetric structure, and the multi-link mechanism is configured to drive the screen bracket to deflect and translate towards the driver side or to deflect and translate towards the front passenger side.