Charging Apparatus for a Vehicle

• US 20140197792A1
• Filed: 03/14/2014
• Published: 07/17/2014
• Est. Priority Date: 09/16/2011
• Status: Active Grant

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: WEBER, Robert, HERZOG, Torsten, KRAMMER, Josef, RESPONDEK, Michael
• Granted Patent: US 9,845,017 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• 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

Abstract

Charging apparatus for a vehicle having an energy accumulator, the charging apparatus including a charging source, a charging plug, a charging socket, a charging control device, an alternating-current charging device and a power switching device. The charging socket has nine electrically assignable contacts, the first contact being connected as a pilot contact by way of a pilot line with the charging control device, the second contact being connected as proximity contact by way of a proxy line with the charging control device, the third contact being connected as a protective grounding conductor contact by way of a ground line with the vehicle ground, the fourth contact being connected as a neutral conductor contact by way of a neutral line with the alternating-current charging device, and the fifth contact being connected as a phase 1 contact by way of a phase 1 line with the alternating-current charging device. The eighth contact is connected as a positive direct-current contact by way of a DC+ line and by way of the power switching device with the energy accumulator. The ninth contact is connected as a negative direct-current contact by way of a DC− line and by way of the power switching device with the energy accumulator. The sixth contact is connected as a phase 2 contact by way of a phase 2 line with the DC− line, and the seventh contact is connected as a phase 3 contact by way of a phase 3 line with the DC+ line.

Claims

1. A charging apparatus for charging an energy accumulator of a vehicle via a charging source having a charging plug, the charging apparatus comprising:

a charging control device of the vehicle;

an alternating-current charging device of the vehicle;

a power switching device of the vehicle;

a charging socket of the vehicle, the charging socket comprising nine electrically assignable contacts, wherein

the first contact is connected as a pilot contact by way of a pilot line with the charging control device,

the second contact is connected as a proximity contact by way of a proxy line with the charging control device,

the third contact is connected as a protective grounding conductor contact by way of a ground line with vehicle ground,

the fourth contact is connected as a neutral conductor contact by way of a neutral line with the alternating-current charging device,

the fifth contact is connected as a phase 1 contact by way of a phase 1 line with the alternating-current charging device,

the eighth contact is connectable as a positive directive-current contact by way of a DC+ line and by way of the power separating device with the energy accumulator of the vehicle,

the ninth contact is connectable as a negative direct-current contact by way of a DC−

line and by way of the power separating device with the energy accumulator of the vehicle,

the sixth contact is connected as a phase 2 contact by way of a phase 2 line with the DC−

line, and

the seventh contact is connected as a phase 3 contact by way of a phase 3 line with the DC+ line.

2. The charging apparatus according to claim 1, further comprising:

a protective cap configured for the charging socket, wherein

the protective cap is openable into an open position and closeable into a closed position, and

in the closed position, the positive direct-current contact and the negative direct-current contact are covered.

3. The charging apparatus according to claim 2, further comprising:

a sensor operatively configured to detect a position of the protective cap;

a data connection arranged between the sensor and the charging control device, wherein

a detected position of the protective cap is transmitted via the data connection from the sensor to the charging control device.

4. The charging apparatus according to claim 3, wherein

a first charging plug is attachable to the charging socket to form a plug-socket connection when the protective cap is open or when the protective cap is closed,

the first charging plug comprises at least three poles and no more than seven poles,

at least three core poles of the first charging plug are electrically assigned,

when the plug-socket connection is established via the first charging plug, the first, second and third contacts of the charging socket are connected with same assignments with the three core poles of the first charging plug,

when the plug-socket connection is established via the first charging plug, the no more than seven poles are connected with the same assignments with the first through seventh contacts of the charging socket, and

when the plug-socket connected is established with the first charging plug, the protective cap is in the closed position.

5. The charging apparatus according to claim 4, wherein

when the plug-socket connection is established with the first charging plug, in a case of an electric assignment of the fourth contact and the fifth contact of the charging socket with alternating current from the charging source, the energy accumulator is chargeable via the alternating-current charging device.

6. The charging apparatus according to claim 4, wherein

when the plug-socket connection is established with the first charging plug, in a case of an electric assignment of the sixth contact and the seventh contact with direct current from the charging source, the energy accumulator is chargeable when a power connection is established by the power switching device and the protective cap is closed.

7. The charging apparatus according to claim 3, wherein

a second charging plug is attachable to the charging socket to form a plug-socket connection when the protective cap is open,

the second charging plug comprising at least three poles and no more than nine poles,

at least three core poles of the second charging plug are electrically assigned,

when the plug-socket connection is established with the second charging plug, the first, second, and third contacts of the charging socket are connected with the same assignments with the three core poles of the second charging plug, and

when the plug-socket connection is established with the second charging plug, the no more than nine poles are connected with the same assignments with the first through ninth contacts of the charging socket.

8. The charging apparatus according to claim 7, wherein

when the plug-socket connection is established with the second charging plug, in a case of an electric assignment of the eighth contact and the ninth contact of the charging socket with direct current from the charging source, the energy accumulator is chargeable when a power connection is established by the power switching device.

9. The charging apparatus according to claim 7, wherein

when the plug-socket connection is established with the second charging plug, in a case of an electric assignment of the fourth contact and the fifth contact of the charging socket with alternating current from the charging source, the energy accumulator is chargeable by way of the alternating-current charging device.