EV Charging Load Management via Register Address Mapping
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Solution Overview
Problem
Charging station systems with multiple manufacturers' charging stations face challenges in reliable and safe local load management due to functionally identical registers being stored at different addresses, making it difficult for the control unit to access the correct register addresses for reading and writing operations.
Innovation Solution
A computer-implemented method determines the register address for a desired function using a predetermined assignment, allowing the control unit to access and read/write registers across different charging stations, ensuring safe and effective load management by using a concordance table or assignment function to map functionally identical registers to their respective addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If charging stations from different manufacturers are connected to a shared power supply, then the charging station system can be expanded with more diverse and cost-effective options, but the local load management becomes unreliable because functionally identical registers are stored at different register addresses
Solution Approach 1:
The patent introduces a concordance table as an intermediary data structure that maps functionally identical registers across different charging station manufacturers to a unified address space. This mediator layer allows the load management control unit to access registers without needing to know manufacturer-specific address variations, thus maintaining reliability while supporting diverse charging stations
Solution Approach 2:
The patent creates a universal register access mechanism through the concordance table that works across all charging station types and manufacturers. The table stores mappings between manufacturer-specific register addresses and standardized logical addresses, enabling a single load management algorithm to universally control heterogeneous charging stations without modification
2Ease of operation
If charging stations from the same manufacturer are used, then register access is simple and reliable with identical register addresses, but the charging station system lacks flexibility and incurs higher costs when expansion is needed
Solution Approach 1:
The patent performs preliminary action by pre-populating the concordance table with register address mappings for all supported charging station types and manufacturers before load management operations begin. This advance preparation ensures that when new charging stations are added to the system, their register mappings are already available, enabling immediate integration without complex configuration or recalibration
Data Source
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AI summary
The invention relates to a computer-implemented method for the local load management of charging stations (11) for charging electric vehicles (1) in a charging station system (10), wherein the charging stations (11) are connected to a common grid connection (12) and are equipped with registers (21) that can be read and/or written by a computer (30) for local load management, wherein the charging stations (11) differ from one another in such a way that functionally identical registers (21) contained in the charging stations (11) are stored at different register addresses (22) in the charging stations (11), wherein the method comprises the following steps: (a) determining a register address of a register of one of the charging stations (11) for a desired function of this charging station (11) based on a predetermined assignment (20) of the functionally identical registers (21) to the different register addresses (22) of the charging stations (11),(b) Retrieving the determined register address (22), and (c) reading and/or writing the register (21) at the retrieved register address (22) to perform the desired function of the charging station (11) with the retrieved register address (22).