Energy Supply Device Rectifier Configuration for Wired Wireless Charging

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing energy supply devices for motor vehicles lack flexibility in installation space and operational modes, particularly in providing both wired and wireless charging capabilities efficiently.

Innovation Solution

The energy supply device incorporates a common rectifier connected to both a wired and wireless connection device, with multiple rectifiers in parallel to ensure efficient power distribution and flexible operation, allowing for both connection methods to be used simultaneously or independently, and includes a switching mechanism to adjust operating modes for optimal power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a common rectifier device is used for both wired and wireless connection devices, then device complexity is reduced and space is saved, but the ability to operate both connection devices simultaneously is limited

Engineering Contradiction:
Improverectifier device configurationVSAvoidoperational modes
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic switching mechanism that allows the rectifier device to reconfigure its operational state based on charging requirements. The switching device enables transition between different operational modes: single-mode operation (either wired or wireless), and dual-mode operation (both wired and wireless simultaneously). This dynamic reconfiguration resolves the contradiction by making the system adaptable rather than fixed, allowing simultaneous operation of both connection devices when needed while maintaining simplicity in each individual mode.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple rectifiers are connected in parallel to support simultaneous operation of both connection devices, then operational versatility is improved, but device complexity and installation space increase

Engineering Contradiction:
Improvesimultaneous operation capabilityVSAvoidrectifier device structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the rectifier device into multiple independent rectifier units (first rectifier and second rectifier) that can be connected in parallel. Each rectifier unit is independently controllable through switching devices, allowing selective activation based on operational requirements. This segmentation enables simultaneous operation of both wired and wireless connection devices when both rectifiers are activated, while still allowing single-mode operation when only one rectifier is needed, thus balancing versatility with manageable complexity.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If the energy supply device supports both wired and wireless connection methods, then adaptability is improved, but the installation space and device complexity increase

Engineering Contradiction:
Improveconnection methodsVSAvoidinstallation space
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent merges the wired connection device and wireless connection device into a single integrated energy supply device housing. Both connection devices share common components including the rectifier device, switching devices, and control unit. This consolidation allows the system to support both wired and wireless charging methods simultaneously while minimizing installation space by eliminating redundant components and utilizing shared infrastructure within a compact unified structure.

Inventive Principle:
Principle #5Merging (Combining)

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

This configuration enables a compact, highly flexible energy supply system that can provide electrical energy to motor vehicles via wired or wireless means, optimizing space usage and operational flexibility while ensuring efficient power management.

Implementation Method 1

Both the first connection device and the second connection device are connected to the mains connection via a common rectifier device

Methodology Applied
Scientific EffectRectification: Diode

Implementation Method 2

the second connection device is an inverter and via the inverter electrically connected to the DC hrichtereinrichtung having connected wireless charging device

Methodology Applied
Scientific EffectInversion: Hart's Inversor

Implementation Method 3

the second connection device is an inverter and via the inverter electrically connected to the DC hrichtereinrichtung having connected wireless charging device

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP3471235B1Energy supply device for providing electrical energy for a motor vehicle and method for operating an energy supply device
Publication Date: 2021.09.08 AUDI AG
  • EP3471235B1 patent drawingFigure 1~2
  • EP3471235B1 patent drawingFigure 3

AI summary

The invention relates to an energy supply device (1) for providing electrical energy to a motor vehicle, comprising a mains connection (3) for connecting the energy supply device (1) to an alternating current network, at least one first connection device (4) for establishing a wired electrical connection between the mains connection (3) and the motor vehicle, and at least one second connection device (5) for establishing a wireless electrical connection between the mains connection (3) and the motor vehicle. The first connection device (4) and the second connection device (5) are connected to the mains connection (3) via a common rectifier device (12). The invention further relates to a method for operating an energy supply device (1).