US 10,882,414 B2Granted

Managing an installation for charging electric motor vehicle batteries in a parking lot

AssigneeOmninov

InventorMichel Le Creff

Life of this patent

Estimating the term…

Loading patent…

Abstract

The invention relates to a method for managing charging currents delivered by an installation (1) for charging electric vehicle batteries in a parking lot (P), comprising a set of electric charging terminals (B1, . . . BN) connected to an electric power distribution network (2), each terminal being able to deliver a charging current value to an electric vehicle (VE1, . . . VEj) connected thereto. The method comprises: determining a maximum permissible value of the current at a connection point (3) for connecting the installation (1) to the network (2); storing, in a central management system (4) linked to the terminals, on the one hand, the electric charging terminals of a first subset of said set corresponding to the occupied terminals and, on the other hand, the electric charging terminals of a second subset corresponding to the available terminals; measuring the sum of the charging currents delivered by the terminals of the first subset; computing, by the system (4), an available current value according to a difference between the maximum permissible value and the sum of the delivered charging currents; and, for each new electric vehicle entering the parking lot (P) for charging purposes: computing, by the system (4), a deviation between the computed available current value and a charging current value able to be delivered by a determined terminal of the second subset; if the deviation is negative, transmitting, to one or more terminals selected from the first set, an order to reduce the charging current value delivered by each terminal to the vehicle connected thereto, so as to cover the deviation in absolute value; and transmitting, to the determined terminal of the second subset, an authorization message for charging the new vehicle at a predetermined charging current value.

Claims24

Dependent claims

A method for managing charging currents delivered by an installation for charging electric vehicle batteries in a parking lot, said installation comprising:

a set of electric charging terminals connected to an electric power distribution network, each electric charging terminal being able to deliver a charging current value to an electric vehicle connected thereto, comprising the following steps:
determining a maximum permissible value IMAX of the current at a connection point for connecting the installation to the electric power distribution network and storing said maximum permissible value IMAX in a central management system linked to said terminals of the set;
centralized storing, in said central management system, on the one hand, of the electric charging terminals belonging to a first subset of said set of electric charging terminals, said first subset comprising the terminals, called occupied terminals, to which a charging electric vehicle is connected and, on the other hand, of the electric charging terminals belonging to a second subset of said set of electric charging terminals, said second subset comprising the available terminals to which no electric vehicle is connected;
measuring the sum of the charging currents delivered by the electric charging terminals of said first subset;
computing, by the central management system, an available current value Idisp according to a difference between said maximum permissible value IMAX and the sum of the delivered charging currents;
and
for each new electric vehicle entering said parking lot for charging purposes:
computing, by the central management system, a deviation between the computed available current value Idisp and a charging current value able to be delivered by a determined terminal of the second subset;
if said deviation is negative, transmitting, to one or more terminal(s) selected from the first set, an order to reduce the charging current value delivered by each terminal to the vehicle connected thereto, the sum of the corresponding reductions being intended to cover said deviation in absolute value;
and
transmitting, to said determined terminal of the second subset, an authorization message for charging said new incoming vehicle at a predetermined charging current value.

8 more elements

A system for managing charging currents delivered by an installation for charging electric vehicle batteries in a parking lot, said installation comprising:

a set of electric charging terminals connected to an electric power distribution network, each electric charging terminal being able to deliver a charging current value to an electric vehicle connected thereto, said management system comprising:
means for determining a maximum permissible value IMAX of the current at a connection point for connecting the installation to the electric power distribution network;
a central management system connected to said terminals of the set and able to store said maximum permissible value IMAX, said central management system also being able to store, on the one hand, the electric charging terminals belonging to a first subset of said set of electric charging terminals, said first subset comprising the terminals, called occupied terminals, to which a charging electric vehicle is connected and, on the other hand, the electric charging terminals belonging to a second subset of said set of electric charging terminals, said second subset comprising the available terminals to which no electric vehicle is connected;
means for measuring the sum of the charging currents delivered by the electric charging terminals of said first subset;
said central management system also being able to compute an available current value Idisp according to a difference between said maximum permissible value IMAX and the sum of the delivered charging currents, and, for each new electric vehicle entering said parking lot for charging purposes, being able:
to compute a deviation between the computed available current value Idisp and a charging current value able to be delivered by a determined terminal of the second subset;
if said deviation is negative, to transmit, to one or more terminal(s) selected from the first set, an order to reduce the charging current value delivered by each terminal to the vehicle connected thereto, the sum of the corresponding reductions being intended to cover said deviation in absolute value;
and
to transmit, to said determined terminal of the second subset, an authorization message for charging said new incoming vehicle at a predetermined charging current value.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/313,095Filed 12 Jun 2017
Priority: FR 16 563754 Jul 2016
Published: US 2019/0225106 A125 Jul 2019
Granted: 5 Jan 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

B60L 53/63
Monitoring or controlling charging stations: in response to network capacity
B60L 53/305
Constructional details of charging stations: communication interfaces
B60L 53/31
Constructional details of charging stations: charging columns specially adapted for electric vehicles
B60L 53/65
Monitoring or controlling charging stations: involving identification of vehicles or their battery types