Battery-Vehicle Compatibility Simulation for Relay Self-Diagnosis
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Solution Overview
Problem
The mismatch in specifications between a vehicle and its mounted battery can lead to failures in relay self-diagnosis and current calibration, necessitating costly and time-consuming reevaluation or replacement during comprehensive vehicle verification.
Innovation Solution
A computer program and determination device utilize simulations using battery and vehicle models to determine the compatibility and success or failure of relay self-diagnosis and current calibration, eliminating the need for physical prototypes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive verification is performed with actual battery and vehicle mounting, then compatibility determination is accurate, but development time and cost increase significantly
Solution Approach 1:
The patent creates virtual copies (simulation models) of the battery management device, vehicle, and their interaction environments. These digital twins allow comprehensive verification of relay self-diagnosis and current calibration without physical assembly, maintaining accuracy while eliminating the time and cost of actual mounting verification.
Solution Approach 2:
The simulation performs compatibility verification in advance during the design phase, before actual battery-vehicle integration. By predicting potential compatibility issues through virtual testing of relay operations and sensor calibration, the system prevents costly rework during comprehensive verification stages.
2Measurement precision
If relay self-diagnosis and current calibration are tested with actual mounting, then diagnosis accuracy is verified, but specification mismatch detection is delayed
Solution Approach 1:
The simulation creates virtual representations of the relay, current sensor, and their electrical characteristics. These digital models accurately replicate the behavior of physical components during self-diagnosis and calibration, enabling precise verification of diagnostic algorithms without physical component mounting.
Solution Approach 2:
The simulation allows rapid adjustment of electrical parameters (resistance, inductance, sensor characteristics) to test different battery-vehicle compatibility scenarios. This enables comprehensive specification verification by varying parameters without physical reconfiguration, accelerating the specification agreement process.
3Reliability
If physical prototypes are used for verification, then real-world performance is confirmed, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive physical prototypes with virtual simulation models that replicate the electrical and control behavior of the battery management system. This digital copying approach maintains performance verification capability while eliminating the manufacturing costs associated with building and testing physical prototypes.
Solution Approach 2:
The simulation substitutes mechanical/electrical physical testing systems with computational modeling. By replacing physical relay switching, sensor connection, and measurement hardware with virtual equivalents, the system eliminates manufacturing costs while preserving the ability to verify real-world performance through accurate physical modeling.
Data Source
AI summary
A computer is caused to execute a process of; executing, for a system including an energy storage device and a powered unit driven by power supplied from the energy storage device wherein the energy storage device including a switch for switching between energized and non-energized states and having a switch self-diagnosis function, a simulation regarding switch self-diagnosis using a battery model for simulating the energy storage device and a powered-unit model for simulating the powered unit; and determining compatibility between the energy storage device and the powered unit based on an execution result of the simulation.