Vehicle Control Interface for User Authority Verification
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Solution Overview
Problem
Existing vehicle control systems lack clear indicators of user authority to execute specific functions, leading to potential misuse or unauthorized access.
Innovation Solution
A control device that includes a vehicle control unit to execute functions based on user authority, with separate acquisition units for temporary and permanent inputs, and notification units to inform users of their authority status, using both physical and virtual operation interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the system provides multiple operation units (temporary and permanent) for vehicle control functions, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The operation units are segmented into two distinct types: temporary operation units (displayed on screens) and permanent operation units (physical buttons). This segmentation allows the system to provide multiple input methods for different user needs while maintaining clear functional separation, resolving the contradiction between ease of operation and device complexity
Solution Approach 2:
The display control unit and notification control unit act as intermediaries between the operation units and the vehicle control unit. These intermediary components manage the complexity by handling the logic of authority checking and interface management, allowing the operation units themselves to remain simple while achieving sophisticated control functionality
2Reliability
If the system implements authority verification for vehicle control functions, then the reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The system performs preliminary authority verification before enabling vehicle control functions. The vehicle control unit checks whether the user has the necessary authority in advance, and only displays or activates operation units for users with appropriate permissions. This preliminary action ensures reliability while maintaining ease of operation for authorized users who experience no additional friction
Solution Approach 2:
Different operation units have different accessibility qualities based on user authority. Temporary operation units are displayed conditionally based on authority status, while permanent operation units provide tactile feedback only to authorized users. This local differentiation of accessibility quality ensures that authority verification does not uniformly degrade the ease of operation for all users
3Loss of information
If the system provides clear authority status indicators, then the loss of information is reduced, but the device complexity increases
Solution Approach 1:
The display control unit uses visual appearance changes to indicate authority status. Temporary operation units are displayed with different appearances (such as color, transparency, or visibility) based on whether the user has authority. This visual encoding provides clear authority information without adding complex physical components
Solution Approach 2:
The system creates visual copies or representations of operation units that indicate their accessibility status. Instead of adding physical indicators, the system uses graphical representations on displays that convey authority information, reducing device complexity while preventing information loss about user permissions
Data Source
AI summary
A control device for a vehicle executes a particular vehicle control function based at least in part on that a user of the vehicle has authority to use the vehicle control function, acquire a first instruction related to the vehicle control function from the user by using a first operation unit temporarily presented to the user, acquires a second instruction related to the vehicle control function from the user by using a second operation unit permanently presented to the user, displays the first operation unit in appearance indicating that the first instruction cannot be given in a case where the user does not have the authority, and notifies the user of the fact that the second instruction cannot be given in response to operation of the second operation unit in a case where the user does not have the authority.