Battery Relay Activation for In-Vehicle Pack Diagnosis
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Solution Overview
Problem
Existing battery systems require disassembly for electrical connection with a charger/discharger, complicating the evaluation of battery state, particularly in electric vehicles.
Innovation Solution
A battery control apparatus and method that enables the diagnosis of a battery system assembly without disassembly by transmitting signals through an interface to simulate vehicle conditions, using a processor to activate the power relay assembly and perform integrity verification and health assessments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the battery system assembly is disassembled to establish electrical connection with charger/discharger for evaluation, then the battery state can be evaluated, but the evaluation process becomes complex and time-consuming
Solution Approach 1:
The patent introduces an external device that acts as an intermediary to simulate the vehicle's controller environment. This external device communicates with the BSA through the existing interface, enabling battery evaluation without disassembly. The intermediary device generates virtual vehicle signals and receives battery data, solving the contradiction by providing a simplified evaluation path while maintaining measurement accuracy.
Solution Approach 2:
The patent creates a virtual copy of the vehicle's controller environment using an external device. This copy reproduces the necessary signal interactions between the vehicle controller and BSA, allowing evaluation to proceed in a simplified external setup rather than requiring physical disassembly of the original system, thus reducing complexity while preserving evaluation validity.
2Productivity
If the power relay assembly remains inactive during evaluation, then the battery system maintains safety, but charging and discharging evaluation cannot be performed
Solution Approach 1:
The patent implements preliminary verification of the external device's communication capability and signal integrity before activating the power relay assembly. This preliminary action ensures that the evaluation environment is properly configured and safe, allowing the PRA to be activated subsequently for productive charging/discharging evaluation while maintaining system reliability through pre-validated safety protocols.
Data Source
AI summary
A battery control apparatus and a method thereof are provided. The battery control apparatus includes an interface that transmits at least one signal to battery system assembly (BSA), a memory, and a processor. The processor transmits an interlock signal indicating a state in which the BSA is mounted on a vehicle to the BSA via the interface, in a virtual environment corresponding to a real environment in which the BSA is mounted on the vehicle, transmits at least one of a starting signal indicating that the vehicle is ignition on or a vehicle signal associated with driving of the vehicle, or any combination thereof to the BSA, and diagnoses a state of the BSA, in a state in which power relay assembly (PRA) included in the BSA is activated in response to the at least one.