Charging Mode Selection for Power-Matched Battery Charging

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Solution Overview

Problem

Existing charging technologies have a rigid charging mode, leading to frequent charging faults, battery damage, and low charging efficiency, resulting in a poor user experience.

Innovation Solution

A charging control method that acquires output and battery input capability parameters to select optimal charging mode combinations, ensuring efficient charging by comparing first and second charging powers and efficiencies, thereby preventing power imbalances and maximizing charging effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a rigid charging mode is used to simplify the charging control, then the device complexity is reduced, but the charging efficiency deteriorates and charging faults increase

Engineering Contradiction:

Improvecharging control complexityVSAvoidcharging efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent implements dynamic charging mode selection by continuously monitoring battery state parameters (charge level, temperature, voltage) and adjusting the charging mode accordingly. The controller dynamically switches between different charging modes (first charging mode for normal operation, second charging mode for fast charging when conditions permit) based on real-time battery status, transforming the static rigid charging mode into a flexible dynamic system that adapts to changing conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the charging parameters (charging power, current, voltage) based on battery state parameters. The controller adjusts charging power dynamically: using higher power in the second charging mode when battery charge level is low and temperature is normal, and switching to lower power in the first charging mode when battery charge level is high or temperature exceeds thresholds, thereby optimizing charging efficiency across different operating conditions.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If a rigid charging mode is used to reduce control complexity, then the ease of operation is improved, but the reliability deteriorates due to frequent charging faults

Engineering Contradiction:

Improvecharging control easeVSAvoidcharging reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent implements a feedback mechanism where the controller continuously monitors battery state parameters (charge level, temperature, voltage) and uses this feedback to adjust the charging mode. The system detects when battery charge level reaches a threshold or when temperature exceeds safe limits, and automatically switches from the second charging mode to the first charging mode based on this feedback, preventing overcharging and thermal issues that cause charging faults.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent applies beforehand cushioning by setting preventive thresholds for battery charge level and temperature before problematic conditions occur. When the battery charge level reaches a predetermined threshold or temperature approaches unsafe levels, the system proactively switches to a safer charging mode or stops charging, preventing the actual occurrence of overcharging or thermal runaway that would cause charging faults and damage.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Productivity

If high charging power is used to improve charging speed, then the productivity is improved, but the battery safety deteriorates due to potential damage

Engineering Contradiction:

Improvecharging speedVSAvoidbattery damage risk

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent uses dynamic power adjustment based on real-time battery conditions. The controller monitors battery state parameters and dynamically switches between high power (second charging mode) when conditions are favorable and low power (first charging mode) when conditions require protection, optimizing the balance between charging speed and battery safety throughout the charging process.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies beforehand cushioning by establishing safe operating thresholds for battery charge level and temperature before dangerous conditions occur. The system prevents high power charging when the battery charge level is high or temperature is elevated, switching to protective low power mode in advance to cushion against potential battery damage from overheating or overcharging.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS20250015622A1Charging control method, controller, charging terminal, and readable storage medium

Publication Date: 2025.01.09 ZTE CORP

AI summary

Disclosed are a charging control method, a controller, a charging terminal, and a readable storage medium. The charging control method may include: acquiring an output capability parameter of a charger and a battery input capability parameter of the charging terminal; obtaining a first charging power by comparing the output capability parameter with the battery input capability parameter; acquiring a second charging power of each of a plurality of charging mode combinations of the charging terminal; selecting several candidate charging mode combinations from the plurality of charging mode combinations by comparing the first charging power with the second charging power; and acquiring a first charging efficiency of each of the candidate charging mode combinations, determining a target charging mode combination from the several candidate charging mode combinations according to the first charging efficiency, and performing charging using the target charging mode combination.