VEHICLE BATTERY CHARGING APPARATUS AND METHOD USING THE SAME

• US 20150175020A1
• Filed: 08/15/2014
• Published: 06/25/2015
• Est. Priority Date: 12/23/2013
• Status: Abandoned Application

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Choe, Gyu Yeong, Kim, Jeeheon, Lee, Chang Dug
• Application Number:
  US14/460,752
• Publication Number:
  US 20150175020A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 2200/10 Air crafts
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2200/32 Waterborne vessels
• CPC Class Codes: B60L 2200/36 Vehicles designed to transport cargo, e.g. trucks
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2240/527 Voltage
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 2270/147 electro magnetic [EMI]
• CPC Class Codes: B60L 3/003 relating to inverters
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: Y02E 60/10 Energy storage using 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
• 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 charging method for a vehicle is provided that includes receiving, by a controller, a control pilot (CP) signal from electric vehicle supply equipment (EVSE) and smoothing the CP signal using a duty ratio of the CP signal. In addition, the controller is configured to compensate the smoothed CP signal and determine whether the compensated CP signal is within a predetermined range. The vehicle battery is then charged when the compensated CP signal is within the predetermined range.

Claims

1. A charging method for a vehicle, comprising:

receiving, by a controller, a control pilot (CP) signal from electric vehicle supply equipment (EVSE);

smoothing, by the controller, the CP signal using a duty ratio of the CP signal;

compensating, by the controller, the smoothed CP signal;

determining, by the controller, whether the compensated CP signal is within a predetermined range; and

charging, by the controller, the vehicle battery when the compensated CP signal is within the predetermined range.

2. The method of claim 1, further comprising:

determining, by the controller, a fault occurrence when the compensated CP signal exceeds the predetermined range.

3. The method of claim 1, wherein the compensating of the smoothed CP signal includes compensating, by the controller, the control signal by adding a reciprocal of the duty ratio of the CP signal to the smoothed CP signal.

4. An on-board charger, comprising:

a memory configured to store program instructions; and

a processor configured to execute the program instructions, the program instructions when executed configured to;

receive a control pilot (CP) signal from electric vehicle supply equipment (EVSE);

smooth the CP signal using a duty ratio of the CP signal;

compensate the smoothed CP signal;

determine whether the compensated CP signal is within a predetermined range; and

charge a vehicle battery when the compensated CP signal is within the predetermined range.

5. The on-board charger of claim 4, wherein the program instructions when executed are further configured to determine a fault occurrence when the compensated CP signal exceeds the predetermined range.

6. The on-board charger of claim 5, wherein the program instructions when executed are further configured to compensate the smoothed CP signal by adding a reciprocal of the duty ratio to the smoothed CP signal.

7. A charging apparatus for a vehicle, comprising:

a vehicle battery;

a battery management system (BMS) configured to detect a status of the vehicle battery; and

an on-board charger configured to charge the vehicle battery by receiving a control pilot (CP) signal and charging power from electric vehicle supply equipment (EVSE), smoothing the CP signal using a duty ratio thereof, compensating the smoothed CP signal, determining whether the compensated CP signal is within a predetermined range, and charging the vehicle battery when the compensated CP signal is within the predetermined range.

8. The apparatus of claim 7, wherein the on-board charger is configured to determine a fault occurrence when the compensated CP signal exceeds the predetermined range.

9. The apparatus of claim 7, wherein the on-board charger is configured to compensate the smoothed CP signal by adding a reciprocal of the duty ratio to the smoothed CP signal.

10. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:

program instructions that receive a control pilot (CP) signal from electric vehicle supply equipment (EVSE);

program instructions that smooth the CP signal using a duty ratio of the CP signal;

program instructions that compensate the smoothed CP signal;

program instructions that determine whether the compensated CP signal is within a predetermined range; and

program instructions that charge a vehicle battery when the compensated CP signal is within the predetermined range.

11. The non-transitory computer readable medium of claim 10, further comprising program instructions that determine a fault occurrence when the compensated CP signal exceeds the predetermined range.

12. The non-transitory computer readable medium of claim 10, further comprising program instructions that compensate the smoothed CP signal by adding a reciprocal of the duty ratio to the smoothed CP signal.