Hybrid Vehicle Meter Display Switching Parameters
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Solution Overview
Problem
Hybrid vehicle meter display devices require a large display space to show multiple parameters, as they typically arrange rotation speed and torque display sections next to each other, limiting their compactness.
Innovation Solution
A meter display device that uses display control means to switch between different types of information at the same position on the display, allowing for the display of multiple parameters in a small space by controlling which information is shown based on driver input or vehicle conditions, such as switching between engine speed and output power displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple display sections (rotation speed and torque) are arranged next to each other to show all parameters, then complete information display is achieved, but display space increases
Solution Approach 1:
The patent merges multiple display sections (rotation speed display and torque display) into a single integrated display area. The display control unit selectively activates different display sections based on vehicle operating conditions, allowing both parameters to be displayed in the same physical space at different times rather than requiring separate adjacent spaces.
Solution Approach 2:
The display system dynamically switches between different display modes based on real-time vehicle conditions. The display control unit changes which parameter is displayed according to the current operating mode (e.g., motor drive mode vs. engine drive mode), making the display adaptable rather than static, thus reducing the required display area.
2Ease of operation
If the display shows all parameters simultaneously in separate sections, then information accessibility is improved, but the display panel size increases
Solution Approach 1:
The display system uses periodic switching between different parameter displays based on predetermined conditions. Instead of showing all parameters simultaneously, the system periodically alternates between displaying rotation speed, torque, or other parameters according to the current vehicle operating mode, ensuring that the most relevant information is always accessible.
Solution Approach 2:
The display control unit receives feedback about the current vehicle operating conditions and automatically adjusts which parameter is displayed. This feedback mechanism ensures that the displayed information is always relevant to the current driving situation, maintaining ease of operation while reducing display space requirements.
Data Source
AI summary
A meter display device includes a display panel that can display a plurality of different types of display information on the same position. The display information includes, at the least, first display information related to a hybrid vehicle and second display information related to the hybrid vehicle. The meter display device also includes a meter control unit that performs control such that any one of the plurality of different types of display information are displayed on the display panel.