US 12,275,325 B2
Offline management for cloud-based dynamic load management
Jani Henriksson, Espoo (FI); and Vo Ngoc, Espoo (FI)
Assigned to Liikennevirta Oy / Virta Ltd, Helsinki (FI)
Appl. No. 18/692,069
Filed by LIIKENNEVIRTA OY / VIRTA LTD, Helsinki (FI)
PCT Filed Aug. 15, 2023, PCT No. PCT/FI2023/050468
§ 371(c)(1), (2) Date Mar. 14, 2024,
PCT Pub. No. WO2024/038225, PCT Pub. Date Feb. 22, 2024.
Claims priority of application No. 20225737 (FI), filed on Aug. 19, 2022.
Prior Publication US 2024/0262238 A1, Aug. 8, 2024
Int. Cl. B60L 53/67 (2019.01); B60L 53/63 (2019.01); B60L 53/68 (2019.01); G01R 19/25 (2006.01)
CPC B60L 53/67 (2019.02) [B60L 53/63 (2019.02); B60L 53/68 (2019.02); G01R 19/2513 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for dynamic load management, the apparatus comprising:
a communication interface for wireless communication with a plurality of charging stations;
at least one processor; and
at least one memory comprising instructions which, when executed by the at least one processor, cause the apparatus to:
monitor for events indicative of status changes of the plurality of charging stations via the communication interface;
determine based on the events that at least one charging station has changed status from online to offline;
determine if the at least one charging station belongs to a dynamic load management group;
determine a current maximum current rating of the dynamic load management group;
determine a latest request for a maximum charging current of the charging station accepted by the at least one charging station, wherein the latest request for a maximum charging current is sent by the apparatus to the at least one charging station and accepted by the at least one charging station before the status of the respective charging station changed from online to offline;
determine a new maximum current rating for the dynamic load management group by reducing the current maximum current rating of the dynamic load management group by a maximum charging current of the latest accepted request;
determine new maximum charging currents for each charging station in the dynamic load management group which remained online based on the determined new maximum current rating for the dynamic load management group divided by the number of online charging stations in the dynamic load management group; and
send a message comprising the new maximum charging current to each of the online charging stations for current adjustment via the communication interface.