EV Charging Timing Control for Household Socket Access
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Solution Overview
Problem
Users of electric vehicles face inconvenience and forgetfulness in charging their vehicles at private household sockets due to lack of connection options, safety concerns, and long charging times, especially when journeys exceed the vehicle's range and no public charging stations are available nearby.
Innovation Solution
A charging system that includes a power source, a charging module to determine the electrical charge variable, and a timing module to automatically set a charging start time via a communication interface, taking into account the charge variable, type of charging cable, and user inputs such as desired departure time and route, ensuring optimal charging and alerting users of insufficient charge for their journey.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic charging control is implemented, then user convenience is improved, but device complexity increases
Solution Approach 1:
The charging system automatically determines the charging start time based on the desired departure time and charge quantity, then autonomously activates the charging process without requiring user intervention. The system serves itself by monitoring its own state and making charging decisions, eliminating the need for manual timing and activation by the user.
Solution Approach 2:
The user inputs the desired departure time in advance, and the system pre-calculates the optimal charging start time based on this information. The charging process is prepared and scheduled beforehand, ensuring the vehicle is ready by the departure time without last-minute manual intervention.
2Adaptability or versatility
If charging at household sockets is used, then charging infrastructure accessibility is improved, but charging time increases
Solution Approach 1:
The system calculates the required charge quantity based on the desired departure time and current state of charge, then schedules the charging process to start in advance. This ensures the vehicle is fully charged by the needed time, optimizing the use of household socket charging without extending the user's waiting time.
Solution Approach 2:
The system continuously monitors the charge quantity and adjusts the charging start time accordingly. By providing feedback on the charging status and calculating the optimal start time, the system ensures efficient use of household socket charging while minimizing the impact on the user's schedule.
3Measurement precision
If manual charging monitoring is required, then charging control precision is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically monitors its own charging status and determines when to start charging based on the desired departure time and required charge quantity. This self-monitoring eliminates the need for manual tracking while maintaining precise control over the charging process timing and activation.
Solution Approach 2:
The system provides continuous feedback on the charging status and automatically adjusts the charging start time to ensure precise control. This feedback mechanism maintains measurement precision while completely eliminating the burden of manual monitoring for the user.
Data Source
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AI summary
The invention relates to a charging system for charging at least one electric vehicle, wherein the electric vehicle has an energy store. The charging system comprises at least one power source, to which the energy store can be connected and by means of which the energy store can be charged, wherein the power source is a domestic receptacle or a domestic wall charging station of a household not associated with the electric vehicle. The charging system also comprises a charging module for determining an electrical charging quantity for charging the energy store and a time switching module, which automatically determines a charging starting time for charging the energy store by means of the power source via a communication interface while taking the electrical charging quantity into account and which automatically activates a charging process at the determined charging starting time.