Vehicle Display Screen Homing for Safe Rotation Locking
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Solution Overview
Problem
Rotations of display screens in new energy vehicles can affect driving safety due to unintended touch or operation, particularly when users mistakenly interact with the wrong screen, diverting attention and potentially causing accidents.
Innovation Solution
A vehicle display screen homing system that utilizes driving members, such as motors with hall sensors, to lock or unlock display screens based on predefined angles and vehicle speed, ensuring screens are rotated to safe positions to avoid distractions and accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If display screens are made rotatable to improve user interaction, then ease of operation is improved, but driving safety deteriorates due to unintended rotations and driver distraction
Solution Approach 1:
The system changes the operational parameters of the display screen by introducing speed-dependent rotation control. When vehicle speed exceeds a threshold, the rotation function is disabled or restricted, preventing unintended rotations during critical driving phases while maintaining full functionality at lower speeds
Solution Approach 2:
The system continuously monitors vehicle speed and screen rotation state, providing feedback control. When the screen is detected to be in a wrong position or rotating unintentionally, the system automatically triggers homing to return the screen to its correct position, ensuring safety without compromising user interaction
2Ease of operation
If multiple large-size display screens are provided to simplify interior design, then ease of operation is improved, but the risk of mistaken touch increases
Solution Approach 1:
The system performs preliminary validation by detecting touch coordinates and determining which display screen was actually touched before executing rotation commands. This preliminary identification prevents mistaken operations by ensuring the correct screen is targeted, even when multiple screens are present
Solution Approach 2:
The system introduces an intermediary validation layer between the touch input and screen rotation execution. The control unit acts as a mediator that verifies the touch intent, checks screen positions, and coordinates with vehicle speed signals before allowing rotation, preventing erroneous operations
3Adaptability or versatility
If display screens can rotate freely to allow user customization, then adaptability is improved, but driving safety deteriorates due to attention diversion
Solution Approach 1:
The system dynamically adjusts screen rotation capabilities based on real-time vehicle conditions. At low speeds, full rotation freedom is granted for customization; at high speeds, rotation is restricted or automatically reversed to maintain safety, creating a dynamic balance between adaptability and safety
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 effectively prevents unintended screen rotations by locking screens during high speeds or incorrect angles, minimizing driver distraction and enhancing safety by ensuring screens are aligned correctly, thus reducing the risk of accidents.
Implementation Method 1
driving members, such as motors with hall sensors
Data Source
AI summary
A display screen homing method applicable in a vehicle comprises: obtaining a current angle of a display screen in the vehicle, receiving a first objective angle when the display screen is in a first objective position, determining whether the first objective angle is equal to the current angle and whether the first objective angle is greater than a maximum rotation angel, switching the driving member from the locked state to an unlocked state when the first objective angle is determined not equal to the current angle and the first objective angle is determined not greater than the maximum rotation angel, and rotating the display screen to the first objective angle by the driving member. An electronic device and the vehicle are also disclosed.