Outer Vehicle Display System for External Data Access
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Solution Overview
Problem
Existing display systems for motor vehicles do not effectively convey relevant vehicle data to users outside the vehicle, requiring them to enter the vehicle to access information such as status and operational data.
Innovation Solution
A display system with a control unit that receives and displays vehicle data on an outer area of the vehicle body, using a switching device to manage power based on vehicle states, allowing users to access information like fuel level, tire pressure, and closure states without entering the vehicle, and can be programmed and operated touch-sensitively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display is mounted on an outer area of the vehicle body, then users can access vehicle data from outside the vehicle, but the display consumes energy continuously even when not needed
Solution Approach 1:
The display system is activated periodically based on specific triggering events rather than operating continuously. The control unit receives signals from sensors that detect events such as door opening, hood opening, or remote keyless entry activation, and only then powers on the display to show vehicle data. This periodic activation based on external triggers resolves the contradiction by providing accessibility when needed while conserving energy when the vehicle is in normal operation.
2Loss of information
If the display shows all vehicle data continuously, then users have complete information availability, but the display becomes complex and difficult to operate
Solution Approach 1:
The display system segments information presentation by type and timing. Different vehicle data (fuel level, battery charge, door status, hood status) are displayed separately based on which triggering event occurred. For example, opening a door triggers display of door-related information, while opening the hood triggers display of engine compartment information. This segmentation reduces interface complexity while maintaining complete information availability across different contexts.
3Loss of information
If the display is always on, then users can access vehicle data at any time, but energy is wasted when the vehicle is locked and unattended
Solution Approach 1:
The display system incorporates feedback mechanisms through sensors that detect vehicle state changes. When the vehicle transitions to a locked, unattended state, sensors detect this condition and send feedback signals to the control unit, which then powers off the display. Conversely, when events like door or hood opening occur, sensors detect these changes and trigger the display to turn on. This feedback-based control resolves the contradiction by ensuring data accessibility when relevant while eliminating energy waste during normal parked states.
Data Source
AI summary
A display system is provided for a motor vehicle including a display and a control unit for controlling the display. The control unit is adapted to receive vehicle data via an interface and to represent the vehicle data on the display. The display is attached in an outer region of the vehicle body of the motor vehicle.