Plug-in vehicle

• US 8,664,915 B2
• Filed: 12/04/2007
• Issued: 03/04/2014
• Est. Priority Date: 12/06/2006
• Status: Expired due to Fees

• Current Assignee: Marvell Asia Pte Limited (Marvell Technology Group Limited)
• Original Assignee: Marvell World Trade Limited (Marvell Technology Group Limited)
• Inventors: Sutardja, Sehat
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): TORRES RUIZ, JOHALI ALEJANDRA
• Application Number:
  US11/950,168
• Publication Number:
  US 20080136371A1
• Time in Patent Office: 2,282 Days
• Field of Search: 320/104, 320/109
• US Class Current: 320/109
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• CPC Class Codes: B60L 58/15 Preventing overcharging
• 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
• CPC Class Codes: Y02T 90/167 Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A system includes a control module, a network interface module, and a charging module. The control module stores a first set of charging parameters for charging a battery in a vehicle. The network interface module transmits the first set of charging parameters to a utility company and receives a reply from the utility company. The control module generates a charge control signal based on the reply and the first set of charging parameters. The charging module charges the battery of the vehicle based on the charge control signal.

Claims

1. A system comprising:

a charge monitoring module configured to monitor a charge level of a battery in a vehicle;

a control module configured to store a first set of charging parameters for charging the battery, wherein the first set of charging parameters includes (i) the charge level of the battery and (ii) a first time of the day for charging the battery;

a network interface module configured to

transmit the first set of charging parameters from the vehicle to a utility company, and

receive (i) a reply and (ii) a charge return request from the utility company, wherein the reply includes a second time of the day for charging the battery,

wherein the control module is configured to generate a charge control signal based on (i) the reply and (ii) the first set of charging parameters;

a charging module configured to charge the battery of the vehicle based on the charge control signal; and

a charge retrieval module configured to (i) selectively retrieve a charge from the battery based on the charge return request and (ii) output power generated based on the charge to the utility company until a predetermined amount of the charge is retrieved from the battery,

wherein the control module, the network interface module, the charging module, and the charge retrieval module are integrated in the vehicle.

2. The system of claim 1, wherein the reply includes a second set of charging parameters that is different than the first set of charging parameters.

3. The system of claim 1, wherein the network interface module includes a wireline interface, a wireless interface, or a powerline carrier (PLC) interface.

4. The system of claim 1, further comprising a converter configured to:

communicate with the charging module, and

convert power from alternating current (AC) power to direct current (DC) power.

5. The system of claim 1, further comprising a user interface module configured to:

communicate with the control module, and

allow user entry of the first set of charging parameters.

6. The system of claim 1, further comprising a user interface module configured to:

communicate with the control module, and

allow user entry of a default set of charging parameters,

wherein the first set of charging parameters is based on the default set of charging parameters.

7. The system of claim 1, further comprising an inverter configured to invert the charge before returning the charge to the utility company.

8. The system of claim 1, further comprising:

the battery; and

an electric motor configured to drive the vehicle,

wherein the battery is configured to provide power to the electric motor when the electric motor drives the vehicle.

9. A method comprising:

monitoring a charge level of a battery in a vehicle;

storing a first set of charging parameters in a control module, wherein the first set of charging parameters is for charging the battery in the vehicle, and wherein the first set of charging parameters includes (i) the charge level of the battery and (ii) a first time of the day for charging the battery;

transmitting the first set of charging parameters from the vehicle to a utility company;

receiving (i) a reply and (ii) a charge return request from the utility company, wherein the reply includes a second time of the day for charging the battery;

generating a charge control signal based on (i) the reply and (ii) the first set of charging parameters;

charging the battery of the vehicle based on the charge control signal;

selectively retrieving a charge from the battery based on the charge return request; and

supplying power generated based on the charge to the utility company until a predetermined amount of the charge is retrieved from the battery.

10. The method of claim 9, wherein the reply includes a second set of charging parameters that is different than the first set of charging parameters.

11. The method of claim 9, further comprising:

transmitting the first set of charging parameters; and

receiving the reply via a wireline interface, a wireless interface, or a powerline carrier (PLC) interface.

12. The method of claim 9, further comprising converting power from alternating current (AC) power to direct current (DC) power.

13. The method of claim 9, further comprising receiving the first set of charging parameters from a user of the vehicle.

14. The method of claim 9, further comprising:

receiving a default set of charging parameters from a user of the vehicle,

wherein the first set of charging parameters is based on the default set of charging parameters.

15. The method of claim 9, further comprising receiving the charge return request via a wireline interface, a wireless interface, or a powerline carrier (PLC) interface.

16. The method of claim 9, further comprising inverting the charge before returning the charge to the utility company.

17. The method of claim 9, further comprising:

providing power from the battery to an electric motor; and

driving the vehicle using the electric motor.

18. A system comprising:

a charging module configured to selectively charge a battery of a vehicle based on a first alternating current (AC) voltage received from a utility company in response to (i) transmitting a charge level of the battery and a first time of the day for charging the battery from the vehicle to the utility company, and (ii) receiving a second time of the day for charging the battery from the utility company; and

a charge retrieval module configured to selectively (i) retrieve a charge from the battery and (ii) output a second AC voltage generated based on the charge to the utility company until a predetermined amount of the charge is retrieved from the battery.

19. The system of claim 18, further comprising a network interface module configured to:

transmit charging parameters from the vehicle to the utility company, wherein the charging parameters are for charging the battery of the vehicle, and wherein the charging parameters include the charge level of the battery and the first time of the day for charging the battery, and

receive (i) a reply including the second time of the day for charging the battery and (ii) a charge return request from the utility company,

wherein the network interface module includes a wireline interface, a wireless interface, or a powerline carrier (PLC) interface.

20. The system of claim 19, further comprising a control module configured to generate (i) a charge control signal based on the reply and the charging parameters and (ii) a charge return control signal based on the charge return request.

21. The system of claim 20, further comprising a converter module configured to convert the first alternating current (AC) voltage received from the utility company into a first direct current (DC) voltage, wherein the charging module is configured to charge the battery using the first DC voltage based on the charge control signal.

22. The system of claim 20, wherein the charge retrieval module is configured to (i) retrieve the charge from the battery, and (ii) generate a second DC voltage based on the charge return control signal.

23. The system of claim 22, further comprising an inverter module configured to invert the second DC voltage into the second AC voltage based on the charge return control signal.

24. The system of claim 19, wherein the reply includes parameters that are different than the charging parameters.

25. The system of claim 19, further comprising a user interface module configured to allow a user to enter the charging parameters.

26. The system of claim 18, further comprising a charge monitoring module configured to (i) monitor the charge level of the battery, (ii) deactivate the charging module when the charge level is greater than or equal to a first level, and (iii) deactivate the charge retrieval module when the charge level is less than or equal to a second level.

27. The system of claim 18, further comprising:

the battery; and

an electric motor configured to drive the vehicle,

wherein the battery is configured to provide power to the electric motor when the electric motor drives the vehicle.