Vehicle charging system

Patent metadata

Field	Value
Publication number	US-9467002-B2
Application number	US-201213553513-A
Country	US
Kind code	B2
Filing date	Jul 19, 2012
Priority date	Jul 19, 2012
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

A vehicle is provided comprising a battery, a charge plate electrically connected to the battery, and a thermal sensor configured to output a signal indicative of a sensed temperature. The thermal sensor can be positioned to determine temperature in the area proximate to the charge plate. The vehicle further includes at least one controller configured to (a) cause an association signal to be repeatedly transmitted during a battery charge procedure such that charging of the battery via the charge plate is maintained, and (b) in response to the sensed temperature exceeding a primary threshold, cause the repeated transmission of the association signal to be interrupted such that charging of the battery ceases.

First claim

What is claimed is:

1. A vehicle comprising:
a battery;
a charge plate electrically connected to the battery;
a sensor configured to output a signal indicative of a sensed temperature; and
a vehicle controller configured to cause (a) an association signal to be repeatedly transmitted from the vehicle during a battery charge procedure such that charging of the battery via the charge plate is maintained, and (b) in response to the sensed temperature exceeding a primary threshold, the repeated transmission of the association signal from the vehicle to be interrupted such that charging of the battery ceases.

2. The vehicle of claim 1 , wherein the sensor is positioned to sense temperature in an area proximate to the charge plate.

3. The vehicle of claim 1 , wherein the at least one controller is further configured to cause, in response to the sensed temperature being greater than a secondary threshold and less than the primary threshold, a reduction signal to be transmitted such that the battery is charged via the charge plate with a reduced charging current.

4. The vehicle of claim 3 , wherein the reduced charging current has an amperage level that is a function of a degree of the sensed temperature.

5. The vehicle of claim 3 further comprising an alert mechanism in communication with the controller and configured to generate an alert in response to the sensed temperature exceeding the secondary threshold.

6. The vehicle of claim 1 , wherein the at least one controller is further configured to cause, in response to the sensed temperature exceeding the primary threshold, a termination signal to be transmitted such that charging of the battery via the charge plate ceases.

7. The vehicle of claim 1 further comprising a cover configured to shield the sensor when the sensor is inactive and retract thereby exposing the sensor when the sensor is active.

8. The vehicle of claim 1 , wherein at least one controller is further configured to cause the association signal to be repeatedly transmitted at predetermined time intervals during a charge procedure.

9. The vehicle of claim 1 , wherein at least one controller is further configured to activate the sensor prior to causing the repeated transmission of the association signal.

10. The vehicle of claim 1 further comprising an alert mechanism in communication with the controller and configured to generate an alert in response to the sensed temperature exceeding the primary threshold.

11. A vehicle comprising:
a battery;
an inductive charge plate in electrical communication with the battery;
a sensor configured to output a signal indicative of an external temperature in a vicinity of the charge plate; and
at least one controller configured to cause (a) an association signal to be repeatedly transmitted to a charge system during a charging of the battery via the charge plate such that charging of the battery is maintained, and (b) in response to the external temperature in the vicinity of the charge plate exceeding a primary threshold, the repeated transmission of the association signal to be suspended such that charging of the battery discontinues.

12. The vehicle of claim 11 , wherein the at least one controller is further configured to cause, in response to the temperature being greater than a secondary threshold and less than the primary threshold, a reduction signal to be transmitted such that the battery is charged via the charge plate at a reduced charging current.

13. The vehicle of claim 12 , wherein the reduced charging current comprises an amperage level that is based upon a degree of the temperature.

14. The vehicle of claim 12 , wherein the at least one controller is further configured to cause, in response to the temperature exceeding the primary threshold, a termination signal to be transmitted to the charging system such that charging of the battery via the charge plate ceases.

15. A method comprising:
outputting a temperature signal indicative of an external temperature proximate to an inductive charge plate;
repeatedly transmitting an association signal to a charge system during charging of a battery via the charge plate such that the charge system continues to charge the battery; and
interrupting the repeated transmission of the association signal in response to the temperature exceeding a primary threshold such that the charge system discontinues charging of the battery.

16. The method of claim 15 further comprising reducing a charge current associated with the charging of the battery in response to the temperature being greater than a secondary threshold and less than the primary threshold such that the charge system charges the battery via the charge plate at a reduced amperage.

Assignees

• Martin Douglas Raymond
• Treharne William David
• Ford Global Tech Llc

Inventors

• Martin Douglas Raymond
• Treharne William David

Classifications

• H02J7/44

  between battery management systems and power sources · CPC title

• H02J7/485 Primary

  with provisions for charging different types of batteries · CPC title

• B60L50/52

  characterised by DC-motors · CPC title

• B60L58/27

  by heating · CPC title

• B60L50/16

  with provision for separate direct mechanical propulsion · CPC title