Monitoring system and method for electric vehicle and electric vehicle supply equipment

• US 8,655,553 B2
• Filed: 11/09/2011
• Issued: 02/18/2014
• Est. Priority Date: 11/09/2011
• Status: Expired due to Fees

• Current Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Wilkie, William E., Nojima, Geraldo
• Primary Examiner(s): Marc, McDieunel
• Application Number:
  US13/292,310
• Publication Number:
  US 20130116886A1
• Time in Patent Office: 832 Days
• Field of Search: 701/34, 701/49, 180/65.1, 180/65.23, 180/165, 606/50, 606/59, 606/82, 363/37, 363/118, 363/175, 292/201, 292/216, 320/109, 320/128, 903/916, 307/10.1
• US Class Current: 701/49
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• 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
• CPC Class Codes: Y10T 292/1047 Closure
• CPC Class Codes: Y10T 292/1082 Motor

Abstract

A monitoring system is for an electric vehicle and an electric vehicle supply equipment. The electric vehicle supply equipment is structured to communicate with the electric vehicle to charge the electric vehicle. The monitoring system includes a monitoring component structured to monitor communication and monitor energy or power flow between the electric vehicle supply equipment and the electric vehicle, a storage component cooperating with the monitoring component to store information corresponding to the monitored communication and the monitored energy or power flow between the electric vehicle supply equipment and the electric vehicle, and a power supply structured to power at least one of the monitoring component and the storage component.

Claims

1. A monitoring system for an electric vehicle and an electric vehicle supply equipment, said electric vehicle supply equipment being structured to communicate with said electric vehicle to charge said electric vehicle, said monitoring system comprising:

a monitoring component structured to monitor two-way communication between said electric vehicle supply equipment and said electric vehicle and monitor energy or power flow between said electric vehicle supply equipment and said electric vehicle;

a storage component cooperating with said monitoring component to store information corresponding to said monitored two-way communication and said monitored energy or power flow between said electric vehicle supply equipment and said electric vehicle; and

a power supply structured to power at least one of said monitoring component and said storage component.

2. The monitoring system of claim 1 wherein said monitoring component is further structured to time-stamp events corresponding to said monitored two-way communication and said monitored energy or power flow between said electric vehicle supply equipment and said electric vehicle, and to store said time-stamped events in said storage component.

3. The monitoring system of claim 2 wherein said monitoring component is further structured to output a sequence of events of said time-stamped events from said storage component.

4. The monitoring system of claim 1 wherein said monitoring component and said storage component are structured to continue to store said information corresponding to said monitored two-way communication and said monitored energy or power flow between said electric vehicle supply equipment and said electric vehicle until a complete termination of said two-way communication and said energy or power flow between said electric vehicle supply equipment and said electric vehicle.

5. The monitoring system of claim 1 wherein said storage component is a linear memory or a circular memory.

6. The monitoring system of claim 1 wherein said monitoring system is independent of said electric vehicle supply equipment and said electric vehicle.

7. The monitoring system of claim 1 wherein said power supply is structured to provide at least one of electromagnetic interference protection and surge protection.

8. The monitoring system of claim 1 wherein said monitoring component comprises a user interface structured to display said stored information.

9. The monitoring system of claim 1 wherein said monitoring component comprises a control monitoring circuit structured to monitor inputs to said electric vehicle supply equipment and outputs from said electric vehicle supply equipment.

10. The monitoring system of claim 9 wherein said control monitoring circuit is structured to isolate said monitoring system from said electric vehicle supply equipment.

11. The monitoring system of claim 1 wherein said monitoring component comprises a current sensor structured to sense current flowing between said electric vehicle supply equipment and said electric vehicle, and a voltage sensor structured to sense a voltage output from said electric vehicle supply equipment to said electric vehicle.

12. The monitoring system of claim 11 wherein said current sensor and said voltage sensor are both structured to isolate said monitoring system from said electric vehicle supply equipment and said electric vehicle.

13. The monitoring system of claim 1 wherein said power supply is an uninterruptible power supply.

14. The monitoring system of claim 1 wherein said monitoring component is structured to isolate said monitoring system from said electric vehicle supply equipment and said electric vehicle.

15. The monitoring system of claim 1 wherein said power supply is further structured to power said monitoring system from a battery or a power input independent from said electric vehicle supply equipment and said electric vehicle.

16. A method of monitoring an electric vehicle and an electric vehicle supply equipment structured to communicate with said electric vehicle to charge said electric vehicle, said method comprising:

monitoring with a processor two-way communication between said electric vehicle supply equipment and said electric vehicle and energy or power flow between said electric vehicle supply equipment and said electric vehicle; and

storing information corresponding to said two-way communication and said energy or power flow between said electric vehicle supply equipment and said electric vehicle.

17. The method of claim 16 further comprising:

time-stamping events corresponding to said two-way communication and said energy or power flow between said electric vehicle supply equipment and said electric vehicle; and

storing said time-stamped events.

18. The method of claim 17 further comprising:

outputting a sequence of events of said stored time-stamped events.

19. The method of claim 16 further comprising:

including with said stored information sensed current flowing between said electric vehicle supply equipment and said electric vehicle, sensed voltage output from said electric vehicle supply equipment to said electric vehicle, sensed current flowing to said electric vehicle supply equipment from a power source, and sensed voltage to said electric vehicle supply equipment from said power source.

20. The method of claim 16 further comprising:

including with said stored information communication commands from said electric vehicle to said electric vehicle supply equipment, and communication responses from said electric vehicle supply equipment to said electric vehicle.