Vehicle Display Device Driving Force Characteristic Lines
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Solution Overview
Problem
Drivers of vehicles with multiple engine driving force characteristics struggle to grasp the current operation state, leading to uncomfortable driving experiences due to the need for careful acceleration operations.
Innovation Solution
A vehicle display device featuring a display means and display control means that displays driving force information, including characteristic lines that change with accelerator operations, allowing drivers to select modes with different driving force characteristics and providing a changeover display for mode changes, emphasizing the new mode's characteristic line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple driving force characteristics are set for the engine, then driving performance and adaptability are improved, but the driver cannot grasp the present operation state, deteriorating ease of operation
Solution Approach 1:
The patent uses different colors to represent different driving force characteristic modes (e.g., normal mode, power mode, economy mode). The display control means changes the color of the driving force characteristic line according to the selected mode, enabling the driver to instantly recognize the current operation state and the relationship between accelerator opening and actual driving force output.
Solution Approach 2:
The system provides visual feedback by displaying the driving force characteristic line that corresponds to the currently selected mode. This feedback mechanism allows the driver to understand how the engine will respond to accelerator operations in the current mode, improving situational awareness and ease of operation.
2Ease of operation
If driving force information is not displayed, then device complexity is reduced, but driver awareness of operation state deteriorates
Solution Approach 1:
The display control means serves multiple functions: it displays the driving force characteristic line, indicates the selected mode through color coding, and provides visual feedback during mode transitions. By integrating these functions into a single display system, the patent achieves improved driver awareness without proportionally increasing device complexity.
Data Source
AI summary
The present invention provides a vehicle display device which allows a driver to instantaneously grasp driving force information. A meter_ECU displays a driving force display image which displays driving force information of a vehicle on an MID, displays an acceleration-torque line (driving force characteristic line) L corresponding to the currently selected mode M and, at the same time, changes a power level which is indicated in a power display region P set within the acceleration-torque line L interlockingly with an accelerator operation of a driver. Due to such a constitution, the vehicle display device allows the driver to instantaneously grasp the driving force information.