Seat and Head-Up Display Angle Coordination for Driver Viewability
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Solution Overview
Problem
Current control technologies for vehicle seat angle and head-up display positioning are complex and inefficient, particularly when the seat recline angle changes, affecting driver viewability during automatic driving modes.
Innovation Solution
A controller system that adjusts both the seat recline angle and the head-up display projection angle in a coordinated and simplified manner using buttons associated with specific angle settings, eliminating the need for sensors to detect these angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate control of seat angle and display position is implemented, then control flexibility is improved, but system complexity increases
Solution Approach 1:
The patent combines the control of seat backrest angle and head-up display projection angle into a single integrated control system. The control unit simultaneously adjusts both parameters based on stored correspondence data, merging two control functions into one operation. This reduces system complexity while maintaining the flexibility to adjust both parameters independently when needed.
Solution Approach 2:
The control unit is designed to perform multiple functions: it controls both the seat position and display device angle, stores correspondence data between these parameters, and can operate in different modes (automatic adjustment based on seat angle or manual adjustment). This multi-functionality allows the system to adapt to various usage scenarios without requiring separate control mechanisms.
2Measurement precision
If sensors are added to detect seat and display angles, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system uses the existing seat angle sensor data that is already available in the vehicle's seat control system. Instead of adding new sensors, the invention leverages the self-reported angle information from the seat's own control mechanisms. The control unit receives this data and uses it to automatically adjust the display angle, eliminating the need for separate detection sensors.
Solution Approach 2:
The control unit acts as an intermediary that receives seat angle information from the seat control system and translates it into appropriate display device angle adjustments. Rather than directly detecting angles with new sensors, the control unit mediates between the existing seat control system and the display device, using stored correspondence data to determine the appropriate display angle.
3Ease of operation
If manual adjustment of display position is allowed, then ease of operation is improved, but adjustment time increases
Solution Approach 1:
The system pre-stores correspondence data between seat angles and optimal display angles. When the seat angle changes, the control unit can immediately retrieve the corresponding display angle from this pre-prepared data table and execute the adjustment without requiring manual user input or complex real-time calculations. This preliminary preparation of data enables rapid automatic adjustment.
Solution Approach 2:
The system provides dynamic adjustment capability where the display angle automatically changes in response to seat angle changes. This dynamic behavior allows the system to adapt to user needs in real-time without requiring manual intervention. The control unit continuously monitors seat position and automatically adjusts the display accordingly, making the system responsive and adaptive to changing conditions.
Data Source
AI summary
A controller is connected to a seat for which a backward tilt angle of a backrest can be changed and to a display device for which an angle of projection of a display light can be changed. An acknowledgment unit acknowledges a selection of one of a plurality of items of identification information. A control unit acquires, when the acknowledgment unit acknowledges a selection of one of the plurality of items of identification information, a backward tilt angle and an angle of projection corresponding to the selected identification information from a storage to control the seat so that a first angle determined by the backward tilt angle acquired is set as the backward tilt angle of the backrest and to control the display device so that a second angle determined by the angle of projection acquired is set as the angle of projection of the display device.