UWB-Based EV Charging Port Selection and Opening

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Solution Overview

Problem

The convenience of charging operations for new energy vehicles is poor due to the need for users to manually match and open charging ports, often resulting in incorrect port selection when unfamiliar with the types of charging ports.

Innovation Solution

A charging control method utilizing ultra-wideband (UWB) antenna modules to automatically determine the type of an EV charging plug and match it with the appropriate charging port, eliminating the need for user intervention in opening the correct port.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users manually match and open charging ports, then users can control the charging process, but the convenience of charging operations deteriorates due to the need for user memory and manual matching

Engineering Contradiction:
Improveconvenience of charging operationsVSAvoidautomatic port matching
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The charging system performs self-identification and self-matching by automatically detecting the charging plug type through UWB communication and autonomously selecting the corresponding charging port, eliminating the need for user memory and manual matching operations

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical operation of opening charging ports with an automated electronic control system that uses UWB communication to detect plug types and automatically actuates the appropriate port opening through electronic control signals

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If users manually select charging ports, then users can choose the correct port, but the reliability deteriorates due to incorrect port selection when unfamiliar with charging port types

Engineering Contradiction:
Improvecorrect port selectionVSAvoidcharging port types
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system establishes a feedback loop where the UWB communication module detects the charging plug type and transmits this information to the control module, which then automatically selects and opens the matching charging port, ensuring correct port selection without requiring user knowledge of port types

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent implements a universal charging system where the vehicle can accommodate multiple types of charging plugs (AC and DC) through a single automated identification and selection mechanism, eliminating the need for users to understand different port types while maintaining compatibility with various charging standards

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If automatic port matching is implemented, then the convenience of charging operations is improved, but the device complexity increases due to the addition of UWB antenna modules and control systems

Engineering Contradiction:
Improveautomatic charging port openingVSAvoidUWB antenna modules and control system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The UWB communication module serves multiple functions including positioning the charging device, identifying the charging plug type, and enabling automatic port selection, thereby reducing the need for separate dedicated components and minimizing overall system complexity despite the added automation capabilities

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4116139A1Charging control method, vehicle, ev charging plug, charging device, and storage medium
Publication Date: 2023.01.11 GUANGZHOU XIAOPENG MOTORS TECH CO LTD
  • EP4116139A1 patent drawingFigure 1~2
  • EP4116139A1 patent drawingFigure 3
  • EP4116139A1 patent drawingFigure 4

AI summary

Embodiments of the present disclosure disclose a charging control method, a vehicle, an EV charging plug, a charging device, and a storage medium, which belong to the technical field of vehicles, and can solve the problem of poor convenience of charging operations for opening a charging port in the related art. The method is applied in a vehicle that includes at least one UWB antenna module and two charging ports of different types, and the method includes: obtaining, based on the at least one UWB antenna module, type information of an EV charging plug for charging the vehicle, where the type information is used for indicating a type of the EV charging plug; determining, based on the type of the EV charging plug, a first charging port that matches the type of the EV charging plug from the two charging ports; and opening a cover of the first charging port.