EV Charging Station Capacity Verification
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Solution Overview
Problem
Users of electric motor vehicles face inconvenience due to reduced charging capacity at charging stations, leading to insufficient battery charging, especially when scheduled trips require longer ranges, causing unplanned stops and time losses.
Innovation Solution
A method that verifies the current maximum charging capacity of a charging station before connecting the vehicle, issuing a warning if the desired charging state cannot be achieved within the predetermined time, allowing users to proactively select a higher capacity or change charging stations to ensure sufficient battery charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple motor vehicles are charged simultaneously at charging stations in a residential area, then the charging demand is met for multiple vehicles, but the charging capacity at individual charging stations is reduced due to variations in electrical power grid supply
Solution Approach 1:
The system performs preliminary verification of charging capacity before the actual charging process begins. The control unit checks whether the charging station can achieve the desired charging state within the predetermined time based on current grid conditions, and only then allows the charging to proceed, preventing unreliable charging outcomes.
Solution Approach 2:
The system continuously monitors the actual charging capacity provided by the charging station during the charging process. When the actual capacity deviates from the predetermined capacity, the control unit adjusts the charging parameters or terminates the charging to ensure the desired charging state is achieved reliably.
2Ease of operation
If the vehicle is connected to a charging station with reduced charging capacity, then the vehicle can be charged, but the charging duration must be extended or the charging state remains insufficient
Solution Approach 1:
The system verifies the charging station's capacity and the feasibility of achieving the desired charging state before the vehicle is connected. This preliminary check prevents the vehicle from being connected to stations that would result in insufficient charging or excessive charging times, ensuring efficient use of charging opportunities.
Solution Approach 2:
The system dynamically adjusts charging parameters based on actual charging capacity monitoring. When capacity variations are detected, the control unit modifies charging current or time parameters in real-time to optimize charging efficiency and achieve the desired charging state within acceptable time frames.
3Adaptability or versatility
If the user schedules a longer trip requiring sufficient battery range, then the user can travel longer distances, but unplanned stops at additional charging stations are required when charging capacity is reduced
Solution Approach 1:
The system verifies charging feasibility before the vehicle departs for its trip. By checking whether the desired charging state can be achieved at the selected charging station before the user leaves, the system ensures the vehicle has sufficient battery charge for the planned trip duration, preventing unplanned stops and maintaining travel schedule adherence.
4Productivity
If the charging station operates with maximum charging capacity, then the charging speed is maximized, but the electrical power grid supply must be sufficient and stable
Solution Approach 1:
The system dynamically adapts the charging process to actual grid supply conditions. The control unit continuously monitors the charging capacity provided by the station and adjusts charging parameters in real-time, allowing the system to operate at maximum speed when grid supply permits while maintaining reliability when supply varies or is insufficient.
Data Source
AI summary
The disclosure relates to a method for charging a battery of a motor vehicle by an external charging station and to a motor vehicle which is designed to carry out such a method. The method includes the following steps which occur before coupling the motor vehicle to the charging station for charging the battery of the motor vehicle: first, on the basis of charging station data received by a motor vehicle, data which characterizes a current maximum charging capacity of the charging station, it is verified whether a predetermined charging state of the battery of the motor vehicle can be achieved by the charging station within a predetermined time. If the predetermined charging state of the battery cannot be achieved, a warning signal is issued.