EV Battery Health Prediction Using Usage and Environmental Data
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Solution Overview
Problem
Batteries in electric vehicles degrade over time due to usage patterns and environmental conditions, leading to a decrease in driving range and performance.
Innovation Solution
A battery health monitoring system (BHMS) that utilizes machine-learning logic to predict battery health based on battery characteristics, vehicle usage information, and environmental data, providing insights for battery health predictions and related services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If machine-learning logic is used to predict battery health based on multiple parameters, then measurement precision of battery health is improved, but device complexity increases
Solution Approach 1:
A computing system with trained machine-learning logic serves as an intermediary between raw battery data and health predictions. The system receives battery characteristic information, vehicle usage information, and environmental information, then processes these through ML models to generate accurate battery health predictions, reducing the complexity burden on individual vehicle systems.
Solution Approach 2:
The computing system performs multiple functions: it processes battery characteristics, analyzes usage patterns, incorporates environmental data, and generates predictions. This multi-functional approach consolidates complexity into a single system that can handle various aspects of battery monitoring and prediction.
2Reliability
If multiple data parameters are collected and processed, then reliability of battery health prediction is improved, but loss of time in data processing increases
Solution Approach 1:
The machine-learning logic is pre-trained on comprehensive datasets that include battery characteristics, usage patterns, and environmental conditions. This preliminary training allows the system to quickly process new data without requiring extensive real-time computation, as the complex analytical work has already been performed during the training phase.
Solution Approach 2:
Traditional mechanical data processing methods are replaced with machine-learning-based computational approaches. The ML models efficiently handle multiple data parameters simultaneously, reducing processing time compared to sequential analytical methods while maintaining high reliability through pattern recognition trained on extensive historical data.
Data Source
AI summary
A computing system comprises one or more processors and one or more storage devices that comprise instruction code. The instruction code is executable by the processors to cause the computing system to receive battery characteristic information associated with a battery of a vehicle, receive vehicle usage information associated with the vehicle, and receive vehicle environmental information. The vehicle usage information relates one or more of a speed and acceleration experienced by the vehicle with one or more vehicle operating periods. The vehicle environmental information relates one or more environmental conditions to which the vehicle was exposed with one or more periods. The computing system subsequently determines, via trained machine-learning logic and based on the battery characteristic information, the vehicle usage information, and the vehicle environmental information a battery health associated with the battery that is indicative of a current charge capacity of the battery relative to an original/rated charge capacity of the battery. The computing system communicates an indication of the battery health prediction.


