EV Charger Current Simulation for Home Energy Management
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Solution Overview
Problem
Existing home energy management systems face challenges in seamlessly integrating electric vehicle charging systems without causing undesired effects, requiring compatibility and additional sensors for accurate current measurement.
Innovation Solution
A method and apparatus that detect a first measurement variable at a connection point to the energy supplier network, determining a second measurement variable which simulates the current, allowing for output in analog or digital form to the home energy management system, thereby enabling integration of electric vehicle charging systems without altering existing home energy management systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electric vehicle charging system is connected to an existing home energy management system, then charging functionality is added, but undesired effects occur in the home energy management system due to measurement incompatibility
Solution Approach 1:
The patent introduces an intermediary device that sits between the electric vehicle charging system and the home energy management system. This intermediary translates the first measurement variable (actual current) into a second measurement variable (simulated current) that is compatible with the existing home energy management system's expectations, thereby enabling integration without causing undesired effects
Solution Approach 2:
The patent creates a copy or simulation of the current measurement signal. Instead of directly connecting the actual current measurement from the charging system, it generates a simulated current signal that mimics what the home energy management system would expect, allowing seamless integration without modifying the existing system
2Measurement precision
If additional sensors are installed to accurately measure current in the integrated system, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent creates a copy or simulation of the current measurement signal. Instead of directly connecting the actual current measurement from the charging system, it generates a simulated current signal that mimics what the home energy management system would expect, allowing seamless integration without modifying the existing system
Solution Approach 2:
The patent transforms the measurement signal from one parameter (first measurement variable representing actual current) to another parameter (second measurement variable representing simulated current). This parameter transformation allows the system to maintain measurement functionality without adding physical sensors
3Adaptability or versatility
If the home energy management system is modified to accommodate the electric vehicle charging system, then compatibility is improved, but ease of operation and installation deteriorate
Solution Approach 1:
The patent segments the integration function into a separate, standalone device that handles the translation between different measurement systems. This segmentation allows the existing home energy management system to remain unchanged while still achieving compatibility through the intermediary translation device
Data Source
AI summary
A method and an apparatus for energy management including an input for a first sensor, which is designed to detect a first measurement variable as information about a current to a home energy management system. A device is designed to determine a second measurement variable depending on the first measurement variable. An output designed to output the second measurement variable, instead of the first measurement variable, as information about a current to the home energy management system for the home energy management system.