EV Navigation System Resolving Range Anxiety via Dual Route Options

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Electric vehicle drivers experience range anxiety due to limited driving ranges and recharge times, leading to poor decision-making regarding charging stops during trips.

Innovation Solution

A method providing two navigation routes for electric vehicles: one with a charging stop and another without, along with customizable settings to limit energy consumption, allowing drivers to select routes based on their preferences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a charging stop is included in the route to ensure the electric vehicle can reach the navigation destination, then the reliability of reaching the destination is improved, but the travel time increases due to the charging stop

Engineering Contradiction:
Improvereliability of reaching destinationVSAvoidtravel time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The navigation system dynamically adjusts the state of charge threshold based on route characteristics, vehicle consumption patterns, and charging infrastructure availability. This allows the system to optimize between including and excluding charging stops based on real-time conditions, resolving the contradiction between reliability and travel time

Inventive Principle:
Principle #15Dynamics

2Reliability

If the driver charges the battery more frequently to avoid range anxiety, then the reliability of reaching the destination is improved, but the productivity of the trip decreases due to more charging stops

Engineering Contradiction:
Improvereliability of reaching destinationVSAvoidtrip efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system continuously monitors the actual energy consumption of the vehicle and compares it with predicted consumption. This feedback loop allows the navigation system to adjust the state of charge threshold and routing recommendations in real-time, optimizing the balance between reliability and productivity based on actual vehicle performance rather than conservative estimates

Inventive Principle:
Principle #23Feedback

3Loss of information

If the navigation system provides detailed consumption metrics and factors, then the information completeness is improved, but the device complexity increases making it harder for drivers to make decisions

Engineering Contradiction:
Improveinformation completenessVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The navigation system extracts and highlights only the most critical information needed for decision-making, such as the recommended state of charge threshold and key route options. Detailed consumption metrics and factors are available on demand but not prominently displayed, reducing the information overload while maintaining completeness for those who need it

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentEP4542174A1Method for providing data for navigation of an electric vehicle
Publication Date: 2025.04.23 VOLVO CAR CORP
  • EP4542174A1 patent drawingFigure 1~2
  • EP4542174A1 patent drawingFigure 3~4
  • EP4542174A1 patent drawingFigure 5~6

AI summary

The disclosure relates to a method (100) for providing first data and second data indicative of navigation of an electric vehicle (100), the method (100) comprising: - obtaining a navigation destination (3) and an indication of a state of charge of the electric vehicle (20), - obtaining the first data indicative of a first route (1) to the navigation destination (3) based on the navigation destination (3) and the indication of the state of charge, the first route including a charging stop (4) for the electric vehicle (10), - determining the second data indicative of a second route (2) to the navigation destination (3) based at least on the navigation destination (3) and the indication of the state of charge, the second route (2) excluding a charging stop for the electric vehicle (10), and the second data comprising one or more settings (6, 7, 8) of the electric vehicle (10) for limiting an energy consumption of the electric vehicle (10), and - providing the first data and the second data for user input-based selection.