Energy supply system for a motor vehicle

• US 10,239,409 B2
• Filed: 06/01/2016
• Issued: 03/26/2019
• Est. Priority Date: 06/03/2015
• Status: Active Grant

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Herke, Dirk
• Primary Examiner(s): Pacheco, Alexis
• Application Number:
  US15/169,826
• Publication Number:
  US 20160355096A1
• Time in Patent Office: 1,028 Days
• Field of Search: 320107, 320108, 320109, 320104, 320137, 320138, 307 91
• CPC Class Codes: B60L 2210/14 Boost converters
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/20 characterised by converters located in the vehicle
• CPC Class Codes: B60L 53/67 Controlling two or more charging stations
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the 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 10/72 Electric energy management in electromobility
• 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

An energy supply system for supplying at least first and second components of a motor vehicle with electrical energy. The energy supply system is arranged in the motor vehicle and has a charging socket (60). At least the first component an energy store and at least the second component is a consumer. The at least one first component has a first electrical voltage and the at least one second component has a second electrical voltage. To carry out a charging mode, the motor vehicle is connected via the charging socket (60) to a charging station with which current which either has the first or the second electrical voltage is to be made available. A first charging mode, a second charging mode and a travel mode of the motor vehicle can be carried out with the energy supply system (52).

Claims

1. An energy supply system for supplying at least first and second components of a motor vehicle with electrical energy, the energy supply system being arranged in the motor vehicle and having a charging socket and at least one voltage transformer, the at least one first component being an energy store and the at least one second component being a consumer, the at least one first component having a first electrical voltage and the at least one second component having a second electrical voltage,

the at least one voltage transformer configured to transform current from one of the two voltages to the other voltage, and vice versa, the at least one voltage transformer having a first input, a first output, a second input and a second output, wherein the first input and the first output are connected to one another via a first path, and the second input and the second output are connected to one another via a second path, a coil and a first active switching element being arranged along the first path, and the first and second paths being connected to one another via a second active switching element and a capacitor,

the charging socket being selectively connected to a charging station with which current of either the first or the second electrical voltage is made available to carry out a charging mode,

wherein in the event of the charging station having the first electrical voltage, the energy supply system, in a first charging mode, transmits current from the charging socket to the at least one first component, and

wherein in the event of the charging station having the second electrical voltage, the energy supply system transforms current from the charging socket from the second electrical voltage to the first electrical voltage and transmits the current to the at least one first component, and wherein the energy supply system is designed to transmit the current from the charging socket on to the at least one second component,

wherein the energy supply system, in a travel mode of the motor vehicle, transforms current from the at least one first component from the first electrical voltage to the second electrical voltage and transmits current to the at least one second component.

2. The energy supply system of claim 1, further comprising a third active switching element arranged along the second path.

3. The energy supply system of claim 1, wherein at least one of the active switching elements is a semiconductor switch.

4. The energy supply system of claim 1, wherein the first input of the at least one voltage transformer is connected via a first line to a first output of the charging socket, and the second input of the at least one voltage transformer is connected via a second line to a second output of the charging socket, and wherein the outputs of the at least one voltage transformer are connected via at least one further line to the at least one first component of the motor vehicle.

5. The energy supply system of claim 4, wherein the first line has a first node via which the first line is connected to the at least one second component, and wherein the second line has a node via which the second line is connected to the at least one second component, a protective switch being arranged between the first output of the charging socket and the first node along the first line.

6. The energy supply system of claim 5, further comprising a protective switch between the first node along the first line and the at least one second component.

7. The energy supply system of claim 4, wherein the first line has a second node via which the first line is connected to the at least one first component, and a protective switch being arranged between the second node and the at least one first component and via which the at least one first component is connected directly to the charging socket.

8. The energy supply system of claim 1, wherein at least one charging device which is arranged between the charging socket and the at least one first component.