Vehicle Power Display Merging Time Indicator With Power Scale
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Solution Overview
Problem
Current display devices for electric traction drives in motor vehicles do not effectively and compactly convey the remaining time for calling up maximum power and the current power limit to drivers, making it difficult for them to plan driving maneuvers during power limitations.
Innovation Solution
A display device that integrates a power meter and a time indicator, where the time indicator progresses beyond the time scale field to display the power limit on the power scale field, allowing the driver to visualize the remaining time for maximum power usage and the subsequent power limitation in a spatially compact manner, eliminating the need for a separate display for the power limit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If separate displays are provided for power meter, time remaining, and power limit, then information completeness is improved, but device complexity and spatial occupation increase
Solution Approach 1:
The patent merges the power meter display and time remaining display into a single integrated display unit. The power scale field serves dual purposes: displaying current power consumption via a pointer and displaying the power limit via a time indicator that progresses along the same scale. This consolidation eliminates the need for separate display components while maintaining complete information presentation.
Solution Approach 2:
The power scale field is designed to serve multiple functions simultaneously. It displays real-time power consumption, shows the power limit boundary, and indicates time remaining through the progression of the time indicator. This multi-functional design reduces the number of required display elements while preserving all necessary information for the driver.
2Loss of information
If separate displays are provided for power meter, time remaining, and power limit, then information completeness is improved, but spatial occupation increases
Solution Approach 1:
The patent combines three separate information displays (power consumption, time remaining, and power limit) into a single spatial footprint. The power scale field integrates the pointer for current power, the time indicator for remaining time, and the power limit boundary, all within one display area, thereby minimizing spatial occupation while maintaining information completeness.
Solution Approach 2:
The patent utilizes the temporal dimension by having the time indicator progress along the power scale over time. This transforms the static power scale into a dynamic display that simultaneously shows power level, time progression, and power limit, effectively encoding multiple dimensions of information within a single spatial field.
3Device complexity
If the time indicator stops at the end of the time scale, then the display is simple, but the power limit information is not conveyed
Solution Approach 1:
The time indicator is designed to perform dual functions: it displays the elapsed time by progressing along the time scale, and simultaneously indicates the power limit by its position on the power scale. When the time indicator stops at the end of the time scale, it also marks the power limit boundary, conveying both time and power limit information through a single indicator element.
Solution Approach 2:
The patent merges the time indication function and power limit indication function into a single visual element. The time indicator serves as both a temporal progress marker and a power limit boundary marker, eliminating the need for separate indicators while providing complete information.
Data Source
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AI summary
The invention relates to a display device (22) for a motor vehicle (10) in which a power limiter (44) restricts the drive power to a power limit (52) if a drive system (12) has provided maximum power for a predetermined maximum duration. The display device (22) comprises a power meter (32) for displaying the currently provided drive power on a power scale (38) and a time display device (34) with a time indicator (48') for displaying a portion of the maximum duration that has already elapsed on a time scale (46). The object of the invention is to present the three displays for power meter, remaining time, and current value of the power limit in a compact manner.The performance scale field (38) has a performance scale end (40) representing the maximum performance and the time scale field (46) has a time scale end (50) representing the maximum duration, wherein the performance scale end (40) and the time scale end (50) coincide and the time indicator (48') is designed to display the performance limit (52) on the performance scale field (38) after reaching the maximum duration beyond the time scale end (50).