Charging connection detection

• US 20160207412A1
• Filed: 12/23/2015
• Published: 07/21/2016
• Est. Priority Date: 06/26/2013
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Krammer, Josef, Goethel, Joachim
• Granted Patent: US 11,097,629 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 3/00 Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/60 Monitoring or controlling charging stations
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles

Abstract

A system includes a power withdrawal point on a power supply network and a vehicle for the corded charging of a traction battery at the power withdrawal point. The vehicle includes a charging electronics unit for charging, and is electrically connectable to the vehicle-external power withdrawal point via a charging cable. The charging cable is configured as a cable connected outside the vehicle to a station charging device for a charging process, or as a cable charging device. The station charging device or the cable charging device, respectively, is electrically connected to the power withdrawal point when a charging connection has been established, and the power withdrawal point can supply an alternating current respectively via the station charging device or via the cable charging device for charging. The station charging device or the cable charging device, respectively, is electrically connected to the charging electronics unit via a pilot line when the charging connection has been established, where the charging process is controllable by an electric pilot signal applied via the pilot line. The charging electronics unit detects physical parameters of the pilot signal via the pilot line, physical parameters of the power supply network at the power withdrawal point via the charging current lines, and physical parameters of the station charging device or of the cable charging device via the pilot line, respectively, during a charging process so as to produce a parameter data set characterizing the power withdrawal point.

Claims

1. A system comprising a power withdrawal point on a power supply network and comprising a vehicle for the corded charging of a traction battery of the vehicle at the power withdrawal point, the vehicle having a charging electronics unit for charging, and the vehicle being electrically connectable to the vehicle-external power withdrawal point via a charging cable for the charging process, wherein

the charging cable is configured as one of (i) a cable connected outside the vehicle to a station charging device for a charging process, and (ii) a cable charging device;

the station charging device or the cable charging device is respectively electrically connected to the power withdrawal point when a charging connection has been established, and the power withdrawal point can supply an alternating current for charging via the station charging device or via the cable charging device, respectively;

the supplied alternating current is respectively conducted from the station charging device or from the cable charging device over charging current lines of the charging cable for charging;

the station charging device or the cable charging device is respectively electrically connected to the charging electronics unit via a pilot line when the charging connection has been established;

the charging process is controllable by an electric pilot signal applied via the pilot line; and

the charging electronics unit detects physical parameters of the pilot signal via the pilot line, physical parameters of the power supply network at the power withdrawal point via the charging current lines, and physical parameters of the station charging device or of the cable charging device via the pilot line, respectively, during a charging process so as to produce a parameter data set characterizing the power withdrawal point.

2. The system according to claim 1, wherein

the vehicle comprises a GPS-based navigation system;

and

the parameter data set includes location data of the power withdrawal point.

3. The system according to claim 2, wherein

the location data is detectable by the GPS navigation system;

and

the location data is detectable by way of driving route identification when a GPS signal is not available.

4. The system according to claim 1, wherein

the produced parameter data set is stored by the charging electronics unit as a characterization data set of the power withdrawal point in a memory of at least one of the charging electronics unit and a central vehicle memory.

5. The system according to claim 2, wherein

the produced parameter data set is stored by the charging electronics unit as a characterization data set of the power withdrawal point in a memory of at least one of the charging electronics unit and a central vehicle memory.

6. The system according to claim 3, wherein

the produced parameter data set is stored by the charging electronics unit as a characterization data set of the power withdrawal point in a memory of at least one of the charging electronics unit and a central vehicle memory.

7. A system, comprising:

a plurality of power withdrawal points according to claim 1;

a plurality of vehicles according to claim 1; and

a characterization data set about a particular one of the plurality of power withdrawal points stored by the charging electronics unit of a respective one of the plurality of vehicles.

8. The system according to claim 7, wherein

one of the plurality of vehicles compares produced parameter data set to the stored characterization data set during a charging process;

and

the charging electronics unit generates an identification signal for the characterization data set that corresponds to the produced parameter data set.

9. The system according to claim 8, wherein

the comparison of the produced parameter data set to the stored characterization data set is carried out according to a statistical classification method.

10. The system according to claim 8, wherein

the charging process is controlled in an optimized manner with respect to a charging strategy when an identification signal is generated.

11. The system according to claim 8, wherein

the charging process is billed by the power provider with respect to the identified power withdrawal point when an identification signal is generated.

12. The system according to claim 7, wherein

the characterization data set is exchanged between at least two vehicles of the plurality of vehicles via data communication.

13. The system according to claim 8, wherein

the characterization data set is exchanged between at least two vehicles of the plurality of vehicles via data communication.