EV Navigation System Weather Forecasting Battery Protection
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Solution Overview
Problem
Current navigation systems for electric vehicles do not adequately account for weather conditions, which significantly impact performance and battery health, leading to inefficient routes and potential battery degradation due to temperature extremes, wind resistance, and rain.
Innovation Solution
A navigation system and charger that integrate weather forecasting to estimate the state of charge of the electrical energy storage device along a route and determine optimal charging times based on temperature forecasts, adjusting routes and charging strategies to maintain efficient battery operation and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional navigation systems provide basic route guidance without weather consideration, then the system complexity remains low, but the battery health deteriorates due to temperature extremes and the vehicle performance decreases due to unaccounted weather impacts
Solution Approach 1:
The navigation system performs preliminary weather forecasting and state of charge estimation before the vehicle departs and along the route. By predicting weather conditions in advance and calculating their impact on battery charge, the system proactively identifies charging stops needed to maintain battery health, rather than reacting to actual weather conditions during driving
Solution Approach 2:
The route is divided into multiple segments with weather forecasts determined for each segment. The state of charge is estimated separately for each segment based on segment-specific weather conditions, allowing the system to identify specific charging locations where battery charge should be topped up to prevent temperature-related damage
2Reliability
If the navigation system integrates weather forecasting and state of charge estimation, then the battery health is protected, but the navigation system complexity increases
Solution Approach 1:
The navigation system is enhanced to perform multiple functions: basic route guidance, weather forecasting reception, state of charge estimation based on weather, and charging location identification. By integrating these functions into a single multi-functional navigation system rather than separate systems, the patent reduces overall system complexity while achieving comprehensive battery protection
Solution Approach 2:
The system uses feedback from weather forecasts to continuously update state of charge estimates along the route. This feedback loop allows the navigation system to adjust routing recommendations and charging stop suggestions based on predicted weather impacts, creating an adaptive system that protects battery health while maintaining manageable complexity through intelligent control algorithms
3Reliability
If charging is performed without considering temperature forecasts, then the charging process is simple and fast, but the battery may suffer from temperature-related degradation or thermal runaway
Solution Approach 1:
The charger system performs preliminary temperature forecasting before initiating charging. By predicting future temperature conditions at the charging location, the system can determine optimal charging start times that ensure temperatures remain within safe ranges during charging, preventing thermal runaway while minimizing delays through advance planning
Solution Approach 2:
The charging start time determination is dynamic rather than static. The system adjusts charging timing based on predicted temperature variations, allowing charging to proceed as soon as safe temperature conditions are forecasted. This dynamic approach optimizes the balance between battery safety and charging speed by adapting to weather predictions rather than following fixed charging schedules
Data Source
AI summary
A method for an electric vehicle travelling from a starting point to a destination, a navigation system for an electric vehicle, a method for charging an electrical energy storage device of an electric vehicle, a charger for charging an electrical energy storage device of an electric vehicle, and an electric vehicle are described.