Vehicle Display Control for Steering Grip Handover Alerts
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Solution Overview
Problem
Existing vehicle display systems annoy drivers by frequently requesting them to grip the steering wheel, especially when switching from autonomous to manual driving mode or approaching events like lane changes or intersections, as the requests are often too conspicuous.
Innovation Solution
A vehicle display control device that adjusts the prominence of steering wheel grip requests based on the necessity, making the requests more conspicuous when switching from autonomous to manual driving or approaching events, and less conspicuous when continuing in autonomous driving, using a processor to control display units like head-up displays and meter displays to increase image density, brightness, or size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inducement image is displayed prominently to ensure the occupant grips the steering wheel, then the reliability of mode switching is improved, but the occupant experiences annoyance due to frequent conspicuous requests
Solution Approach 1:
The patent applies local quality by varying the display prominence of the inducement image based on the specific driving situation. When mode switching is required, the image is displayed prominently in the center of the meter display. When continued autonomous driving is requested, the image is displayed with lower prominence at the periphery, thus ensuring reliability when needed while reducing annoyance during routine operations.
Solution Approach 2:
The patent implements dynamics by making the display characteristics of the inducement image changeable based on the type of request. The system dynamically adjusts between two display modes: a prominent central display for mode switching requests and a less prominent peripheral display for continued autonomous driving requests, allowing the interface to adapt to different operational contexts.
2Object-affected harmful factors
If the inducement image is displayed less prominently to reduce annoyance, then the occupant comfort is improved, but the effectiveness of critical requests is reduced
Solution Approach 1:
The patent ensures request effectiveness by displaying the inducement image prominently in the center of the meter display specifically when mode switching is required. This localized high-prominence display ensures that critical requests cannot be missed, while other situations use lower prominence to reduce annoyance.
Solution Approach 2:
The system dynamically adjusts the display prominence based on the criticality of the request. The processor determines whether mode switching or continued autonomous driving is requested and accordingly adjusts the image prominence, ensuring that critical mode switching requests are always effective while non-critical requests use lower prominence.
3Reliability
If the inducement image is always displayed prominently, then the occupancy safety is improved, but the distraction to the occupant increases
Solution Approach 1:
The patent reduces driver distraction by displaying the inducement image at the periphery of the meter display with lower prominence when continued autonomous driving is requested. This peripheral positioning and reduced prominence minimize visual distraction while still providing necessary information to the driver.
Solution Approach 2:
The system dynamically positions and sizes the inducement image based on the request type. For mode switching requests, the image is displayed prominently in the center. For continued autonomous driving requests, the image is displayed smaller and at the periphery, thus maintaining safety information while reducing distraction during less critical situations.
Data Source
AI summary
A vehicle display control device, includes a memory; and a processor coupled to the memory. The processor is configured to cause a display unit provided in a vehicle cabin to display an inducement image requesting that an occupant grip a steering wheel in a case in which it is necessary for the occupant to grip the steering wheel, and cause the display unit to display the inducement image more prominently in a case of requesting that the occupant grip the steering wheel before the vehicle switches from an autonomous driving mode to a manual driving mode as the vehicle is continuing to drive autonomously, than in a case of requesting that the occupant continue to grip the steering wheel as the vehicle is continuing to drive autonomously.