Battery Control Unit Identifies Storage Module Type via Resistance
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Solution Overview
Problem
Current methods for identifying storage module types in electrical energy stores, such as lithium ion batteries, are inadequate as they do not ensure correct module installation, leading to potential mixing of different types during exchange, which can affect performance and safety.
Innovation Solution
Incorporating temperature sensors with different resistance values or configurations to identify storage module types, where the battery control unit determines the module type based on resistance values and positions, allowing for reliable and cost-effective identification and parameter setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If barcode or data matrix code is used for identification, then identification capability is provided, but reliability of correct module installation is not ensured
Solution Approach 1:
The system automatically reads the data matrix code, determines the storage module type, and provides feedback to the service worker. This feedback mechanism ensures that only compatible modules are installed by validating the module type against requirements, thereby converting manual identification into an automated verification process that prevents incorrect installations.
Solution Approach 2:
The patent replaces manual visual inspection and physical comparison methods with automated optical reading of data matrix codes. The control unit automatically processes the code information and determines module type, substituting human judgment with automated recognition and validation systems.
2Reliability
If temperature sensors with different rated resistances are installed for encoding, then identification reliability is improved, but device complexity and costs increase
Solution Approach 1:
The patent introduces a data matrix code as an intermediary carrier that stores module type information. Instead of using complex temperature sensor configurations, the system uses a simple, readable code that the control unit automatically processes, thereby simplifying the identification mechanism while maintaining reliability.
Solution Approach 2:
The module type information is copied into a data matrix code that can be easily read and processed. This creates a simplified representation of the module's identification data that can be automatically recognized without requiring complex physical sensor configurations.
3Device complexity
If manual identification methods are used, then device complexity is kept low, but productivity and accuracy of module exchange are reduced
Solution Approach 1:
The patent replaces manual identification procedures with automated optical reading and electronic processing of data matrix codes. The control unit automatically determines module type and validates compatibility, significantly improving exchange efficiency while keeping the added complexity minimal through the use of standard coding technologies.
Solution Approach 2:
The system enables self-service identification where the data matrix code on the module provides all necessary information for the control unit to automatically determine module type and validate compatibility without requiring external assistance or complex manual procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures correct installation of compatible storage modules, enhances operational reliability by distinguishing multiple module types, and allows for parameter adjustments based on identified types, reducing the risk of errors and improving safety.
Implementation Method 1
at least one temperature sensor string having a temperature sensor in the form of a temperature-dependent resistor for measuring the storage module temperature
Data Source
AI summary
An electrical energy store has a plurality of storage modules, each of which has at least one temperature sensor string having a temperature sensor in the form of a temperature-dependent resistor for measuring the storage module temperature, and a battery control unit, which, based on the resistance values of the temperature sensor strings, determines the temperatures at the respective temperature sensors. The battery control unit is designed to determine a respective storage module type based on the measured resistance values of the temperature sensor strings. A method for identifying a storage module type, includes the steps: detecting a resistance value of at least one temperature sensor string having a temperature sensor, determining the temperatures present at the respective temperature sensors via a battery control unit on the basis of the resistance values of the temperature sensor strings, and determining a storage module type on the basis of the resistance value of the at least one temperature sensor string per storage module.