Battery-Charging Compatibility Simulation for Early EV Verification
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Solution Overview
Problem
The mismatch between the charge-discharge system specifications and the battery performance in vehicles, such as electric vehicles, can lead to excessive power supply, prolonged charging times, and accelerated battery deterioration, making it difficult to ensure compatibility and safety during the verification process.
Innovation Solution
A computer program and determination method that use simulation models to estimate the behavior of charge control for energy storage devices and charge systems, determining compatibility without the need for actual battery charging, thereby ensuring safety and reducing development time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive verification of the vehicle system is performed with actual battery mounting, then compatibility between charge-discharge system and battery can be confirmed, but development time is extended and specification agreement cannot be reached early
Solution Approach 1:
The patent applies preliminary action by performing compatibility verification through simulation before actual battery mounting and comprehensive vehicle system verification. The compatibility verification unit executes simulations using battery models and charge-discharge system models to predict compatibility issues in advance, allowing specification agreements to be reached early in the development phase without waiting for physical prototype testing.
Solution Approach 2:
The patent uses copying by creating virtual replicas of the battery and charge-discharge system through mathematical models. The battery model replicates battery characteristics (capacity, internal resistance, temperature responses) and the charge-discharge system model replicates system behavior, enabling virtual compatibility verification that substitutes for time-consuming physical testing while maintaining verification reliability.
2Loss of time
If simulation using battery model and charge system model is executed, then compatibility can be determined early, but computational resources and model complexity increase
Solution Approach 1:
The patent applies segmentation by dividing the verification system into distinct modular components: a battery model with specific parameters (capacity, internal resistance, temperature characteristics), a charge-discharge system model, and a compatibility verification unit. This modular structure allows each component to be developed, validated, and adjusted independently, managing overall system complexity while enabling comprehensive simulation-based verification.
Data Source
AI summary
Provided are a computer program, a determination device, and a determination method. A computer is caused to execute a process of estimating a state of at least one of an energy storage device and a charge system by executing a simulation using a battery model for simulating the energy storage device and a charge system model for simulating the charge system that charges the energy storage device and determining the compatibility between the energy storage device and the charge system based on the estimated state.