EV Range Display Combining Nominal and Dynamic Battery Range
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Solution Overview
Problem
Electric vehicle range indicators often provide unclear and disconnected dynamic range values that fluctuate rapidly due to changing vehicle characteristics, confusing drivers and leading to an unenjoyable driving experience.
Innovation Solution
A range indicator that combines both nominal and dynamic ranges within a linear battery icon, using distinct color shading to clearly differentiate and visually represent the impact of vehicle characteristics on the dynamic range, with control circuitry determining and displaying these ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dynamic range values are displayed to reflect real-time vehicle characteristics, then the accuracy and relevance of range information is improved, but the clarity and stability of the display deteriorates due to rapid fluctuations
Solution Approach 1:
The range display is segmented into multiple components: a base range value and adjustable range modifiers. Each modifier corresponds to a specific vehicle characteristic (e.g., driving behavior, route features, vehicle configuration). This segmentation allows the system to display detailed, accurate range information while organizing it in a structured way that reduces perceived complexity for the driver.
Solution Approach 2:
The display system dynamically adjusts the contribution of different range modifiers based on current vehicle conditions. Rather than showing all possible fluctuations simultaneously, the system dynamically weights and combines modifiers to provide stable yet accurate range information that reflects real-time changes in vehicle characteristics.
2Adaptability or versatility
If multiple range modifiers are applied to calculate dynamic range, then the comprehensiveness of range assessment is improved, but the complexity of the display system increases
Solution Approach 1:
The range assessment is divided into a base range calculation and multiple independent modifiers. Each modifier handles a specific aspect (driving behavior, route, vehicle config), allowing comprehensive assessment while keeping each component simple and manageable.
Solution Approach 2:
Different parts of the display system handle different aspects of range calculation with specialized logic. Each modifier is designed to handle its specific domain, allowing the overall system to be comprehensive while maintaining local simplicity in each modifier's implementation and presentation.
3Reliability
If real-time vehicle characteristics are continuously monitored and reflected in range display, then the usefulness of range information is improved, but the driver confusion increases due to rapid value changes
Solution Approach 1:
The system dynamically adjusts which modifiers are active and how they contribute to the final range display. Rather than showing all real-time changes equally, the system dynamically combines modifiers to provide useful range information while smoothing out unnecessary fluctuations that would confuse drivers.
Solution Approach 2:
The display system provides feedback to drivers about how vehicle characteristics affect range through the modifier framework. This structured feedback helps drivers understand the relationship between their actions and range changes, reducing confusion while maintaining usefulness.
Data Source
AI summary
Method and systems for displaying vehicle range and remaining energy to a driver is disclosed that includes a nominal range, based on a battery state of charge, and a dynamic range, based on the battery state of charge and a vehicle characteristic. The range indicator may be a linear battery icon that presents the nominal range as a first display element and the dynamic range as a second display element. The first display element may comprise a first bar length of a faded color and the second display element may comprise a second bar length of a full color.