EV Battery Charging Control for Personalized Time, Range, and Cost

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Solution Overview

Problem

Current electric vehicle charging systems lack the ability to provide personalized smart charging options based on user demands, such as charging time, mileage, and cost, resulting in users being passive recipients of charging services rather than active participants in managing their charging schedules.

Innovation Solution

A battery charging method and system that allows users to input specific charging demand parameters, which are then used to calculate a target charging scheme considering actual battery operation state information, enabling personalized charging that meets user-defined requirements, including charging time, mileage, and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional charging piles are used, then charging function is provided, but users cannot obtain personalized charging services according to their own demands

Engineering Contradiction:
Improvepersonalized charging serviceVSAvoidcharging system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The charging system is segmented into multiple independent modules: user information acquisition module, parameter calculation module (charging time, mileage, electricity amount), scheme generation module, and execution module. This segmentation allows the system to provide personalized charging services by processing different user demands through separate functional blocks, improving adaptability while managing complexity through modular design.

Inventive Principle:
Principle #1Segmentation

2Loss of time

If charging time is reduced, then user efficiency is improved, but battery lifetime may be affected

Engineering Contradiction:
Improvecharging timeVSAvoidbattery lifetime
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The system dynamically adjusts charging parameters based on real-time battery state and user requirements. The calculation module determines optimal charging curves that balance charging speed with battery health protection, allowing the charging rate to vary during the process rather than maintaining a fixed high rate, thus reducing charging time while preserving battery lifetime.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes charging parameters (current, voltage, temperature thresholds) based on battery state of charge and user demands. By dynamically modifying these parameters during charging, the system achieves faster charging when appropriate while implementing protective parameter adjustments when battery health is at risk, resolving the contradiction between charging time and battery lifetime.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3760474B1Charging method, apparatus and device, medium, battery management system and charging pile
Publication Date: 2024.09.04 CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
  • EP3760474B1 patent drawingFigure 1~2
  • EP3760474B1 patent drawingFigure 3
  • EP3760474B1 patent drawingFigure 4~5

AI summary

The present application discloses a charging method, an apparatus, a device, a medium, a battery management system and a charging pile. The method includes: acquiring a charging demand parameter set by a user; calculating, according to the charging demand parameter and acquired actual operation state information of a battery, a target charging scheme for charging the battery; transmitting, according to the target charging scheme, a first charging request to a charging device, so that the charging device charges the battery according to the first charging request. According to the charging method, the apparatus, the device, medium, the battery management system and the charging pile provided in the embodiments of the present application, personalized smart charging can be achieved for different users.