Internal Battery Resistance Measurement via Software

Solution Overview

Problem

Conventional methods require external equipment for measuring battery resistance parameters, which is impractical after the battery is encapsulated, as parameters change with temperature and environmental conditions.

Innovation Solution

An electronic device with a software module and processing circuit that measures resistance parameters, such as AC and DC resistance, internally, eliminating the need for external equipment and allowing for real-time power budget calculations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If external measuring equipment is used to manually measure battery resistance parameters, then measurement capability is provided, but the device complexity increases and ease of operation deteriorates after battery encapsulation

Engineering Contradiction:

Improveresistance parameter measurementVSAvoidexternal measuring equipment

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the resistance measurement function into the electronic device itself by integrating a processing circuit that can measure battery resistance parameters internally. This eliminates the need for separate external measuring equipment and allows the device to monitor its own battery health automatically.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The electronic device performs self-diagnosis by using its internal processing circuit to measure battery resistance parameters without requiring external equipment or manual intervention. The device monitors its own battery health status automatically, enabling self-service functionality.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If external measuring equipment is used to measure battery parameters, then resistance parameters can be measured, but ease of operation deteriorates due to encapsulation

Engineering Contradiction:

Improveresistance parameter measurementVSAvoidmanual measurement operation

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The electronic device performs self-diagnosis by using its internal processing circuit to measure battery resistance parameters without requiring external equipment or manual intervention. The device monitors its own battery health status automatically, enabling self-service functionality.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical measurement operations with an automated electronic measurement system. The processing circuit automatically measures resistance parameters through electrical signals, eliminating the need for manual connection and operation of external measuring equipment.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If manual measurement with external equipment is used, then initial parameter measurement is possible, but productivity decreases due to repeated manual measurements

Engineering Contradiction:

Improveresistance parameter measurementVSAvoidmeasurement efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The processing circuit enables continuous monitoring of battery resistance parameters without interruption. The system can continuously or periodically measure battery health status, eliminating the need for repeated manual measurement sessions and improving measurement efficiency over time.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The electronic device performs self-diagnosis by using its internal processing circuit to measure battery resistance parameters without requiring external equipment or manual intervention. The device monitors its own battery health status automatically, enabling self-service functionality.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS10132873B2Scheme applied into electronic device and capable of measuring resistance parameter(s) associated with battery cell

Publication Date: 2018.11.20 MEDIATEK INC

AI summary

A method applied into an electronic device and capable of measuring at least one resistance parameter includes: launching a program/application on the electronic device; and using the program/application to measure the at least one resistance parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device.