Battery Pack On-Site Diagnostic Device Using Wake-Up Signal
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Solution Overview
Problem
Current battery pack diagnostic technologies require disconnection and transfer to a separate facility for analysis, leading to increased service costs and unavailability periods, as they cannot perform on-site diagnostics efficiently.
Innovation Solution
A battery pack diagnosing device and method that generates a wake-up signal to activate the battery pack, establishes communication, and transmits state information to a user terminal, allowing for on-site diagnosis and immediate action, using a combination of switches, communication units, and controllers for signal exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If battery pack diagnosis is performed using dedicated equipment at separate facilities, then diagnostic accuracy is improved, but service cost and unavailability period increase
Solution Approach 1:
The battery pack diagnosing device integrates multiple diagnostic functions into a single portable unit that can perform comprehensive battery analysis (voltage, current, temperature, impedance measurements) without requiring specialized facility equipment. This universal device combines the capabilities of multiple dedicated tools into one multi-functional instrument that can operate at various locations.
Solution Approach 2:
The diagnosing device serves as an intermediary between the battery pack and the user terminal, establishing communication connections to transmit state information. This intermediary enables data exchange and diagnostic information transfer without requiring physical transfer of the battery pack to a separate facility, thus reducing unavailability time while maintaining diagnostic accuracy.
2Measurement precision
If battery pack is disconnected and transferred to separate facility for diagnosis, then in-depth analysis is possible, but service cost and unavailability period increase
Solution Approach 1:
The battery pack diagnosing device enables on-site self-diagnosis capabilities, allowing users to perform comprehensive battery analysis at the installation location without requiring external facility services. The device includes all necessary diagnostic functions and communication capabilities to conduct thorough analysis independently, eliminating the need for costly facility-based services.
Solution Approach 2:
The device combines diagnostic analysis capabilities, communication functions, and user interface elements into an integrated portable system. By merging these previously separate functions into one unified device, the system achieves in-depth analysis capability without requiring the battery pack to be physically transferred to a separate facility, thereby reducing service costs.
3Loss of time
If on-site diagnosis is performed, then unavailability period is reduced, but diagnostic capability may be limited
Solution Approach 1:
The diagnosing device performs preliminary diagnostic actions on-site by measuring battery state information (voltage, current, temperature, impedance) and communicating with the battery management system before any physical transfer is required. This preliminary diagnosis captures essential data at the installation location, reducing unavailability time while maintaining sufficient diagnostic capability for immediate assessment and action.
Solution Approach 2:
The device transitions from traditional facility-based diagnosis to a portable on-site diagnostic dimension. By adding mobility and on-site operational capability as a new dimension, the system maintains comprehensive diagnostic functions while enabling diagnosis at the battery's installation location, thus reducing unavailability period without sacrificing diagnostic capability.
Data Source
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Figure 2
AI summary
A battery pack diagnosing device mediating signal communication between a battery pack and a user terminal includes a controller generating a wake-up signal based on a user input to a third switch and transmitting the generated wake-up signal to the battery pack, and establishing a communication connection according to a first communication method with the battery pack turned on based on the wake-up signal and receiving state information of the battery pack through the established communication connection.