Vehicle port door with wirelessly actuated unlatching assembly

• US 8,539,990 B2
• Filed: 06/06/2012
• Issued: 09/24/2013
• Est. Priority Date: 09/28/2011
• Status: Active Grant

• Current Assignee: Tesla Inc.
• Original Assignee: Tesla Motors Incorporated (Tesla Inc.)
• Inventors: Ferguson, Joshua Willard, Zalan, Daryl, Dai, Andrew, Nergaard, Troy Adam, Kalayjian, Nicholas Robert, Kohn, Scott Ira
• Primary Examiner(s): MAUST, TIMOTHY LEWIS
• Application Number:
  US13/489,617
• Publication Number:
  US 20130074985A1
• Time in Patent Office: 475 Days
• Field of Search: 141/83, 141/94, 141/98, 141/192, 292/144, 296/97.22, 702/64
• US Class Current: 141/94
• CPC Class Codes: B60K 15/05 Inlet covers
• CPC Class Codes: B60K 2015/03197 Systems for exchanging data
• CPC Class Codes: B60K 2015/03203 during refueling
• CPC Class Codes: B60K 2015/053 with hinged connection to the vehicle body
• CPC Class Codes: B60K 2015/0561 Locking means for the inlet cover
• CPC Class Codes: B67D 7/348 by interrogating an information transmitter, e.g. a transponder B67D7/145 takes precedence
• CPC Class Codes: F01M 11/0458 Lubricant filling and draining
• CPC Class Codes: Y10T 292/1021 Motor
• CPC Class Codes: Y10T 70/65 Central control

Abstract

A port door unlatching system is provided that may be used to open the door covering the charge port of an electric vehicle, or the door covering the fuel filler port of a conventional vehicle. The system includes a fuel delivery subsystem with a fuel coupler (e.g., a charging connector or a gas nozzle) designed to transfer fuel from the source to the vehicle via the vehicle'"'"'s fuel port. The fuel coupler includes a switch that when toggled, causes a control signal to be wirelessly transmitted over a short distance. Upon receipt of the control signal by a receiver integrated into a vehicle that is in close proximity to the fuel port, an unlatching actuator within the vehicle unlatches the port door, thereby allowing it to open and provide port access.

Claims

1. A port door unlatching system, comprising:

an on-board fueling subsystem, comprising;

a vehicle fuel port integrated into a vehicle;

a port door hingeably coupled to said vehicle, wherein in a closed position said port door covers said vehicle fuel port and in an open position said port door provides access to said vehicle fuel port;

a port door latching assembly configured to maintain said port door in said closed position;

a port door unlatching actuator coupled to said port door latching assembly, wherein activation of said port door unlatching actuator unlatches said port door latching assembly allowing said port door to move from said closed position to said open position;

an on-board controller connected to said port door unlatching actuator, said on-board controller configured to activate said port door unlatching actuator upon receipt of an activation signal; and

an on-board receiver connected to said on-board controller and configured to transmit said activation signal to said on-board controller upon receipt of a wirelessly transmitted control signal; and

a fuel delivery subsystem, comprising;

a fuel coupler connected to a fuel source, wherein said fuel coupler and said fuel source are separate and independent of said vehicle, and wherein said fuel coupler is configured to be coupled to said vehicle fuel port and to transfer fuel from said fuel source to said vehicle via said vehicle fuel port;

a transmitter configured to wirelessly transmit said control signal to said on-board receiver; and

a transmitter switch integrated into said fuel coupler, wherein toggling said transmitter switch causes said transmitter to wirelessly transmit said control signal.

2. The port door unlatching system of claim 1, wherein said vehicle fuel port is comprised of a charge port electrically connected to a vehicle battery pack, wherein said fuel source is comprised of a charging source of electrical power, and wherein said fuel coupler is a charging connector.

3. The port door unlatching system of claim 1, wherein said vehicle fuel port is comprised of a filler port connected to a vehicle fuel tank, wherein said fuel source is comprised of a source of gasoline, and wherein said fuel coupler is a gasoline nozzle connected to said source of gasoline via a gasoline pump.

4. The port door unlatching system of claim 1, wherein said transmitter is comprised of a short range device with a data transmission range of less than 4 meters.

5. The port door unlatching system of claim 1, wherein said transmitter is comprised of a short range device with an output power of less than 10 watts.

6. The port door unlatching system of claim 1, wherein said transmitter is comprised of a short range device with an output power of less than 1 watt.

7. The port door unlatching system of claim 1, said fuel delivery subsystem further comprising a directional antenna integrated into said fuel coupler, wherein said directional antenna is electrically connected to said transmitter.

8. The port door unlatching system of claim 1, wherein said on-board receiver is comprised of a first transceiver and said transmitter is comprised of a second transceiver, wherein said first transceiver is configured to transmit data to and receive data from said second transceiver, and wherein said data is in addition to said control signal.

9. The port door unlatching system of claim 1, wherein said on-board receiver requires a line-of-sight with said transmitter in order to receive said control signal.

10. The port door unlatching system of claim 1, said on-board fueling subsystem further comprising a secondary port door unlatching actuator coupled to said port door latching assembly, wherein activation of said secondary port door unlatching actuator unlatches said port door latching assembly allowing said port door to move from said closed position to said open position.

11. The port door unlatching system of claim 1, said on-board fueling subsystem further comprising a switch integrated into a passenger compartment of said vehicle and connected to said on-board controller, wherein toggling said switch sends a secondary activation signal to said on-board controller, wherein said on-board controller activates said port door unlatching actuator upon receipt of said secondary activation signal.

12. The port door unlatching system of claim 1, wherein toggling said transmitter switch causes said transmitter to wirelessly transmit said control signal for a preset period of time.

13. The port door unlatching system of claim 1, wherein said transmitter wirelessly transmits said control signal for as long as said transmitter switch is toggled.

14. The port door unlatching system of claim 1, wherein said on-board controller is configured to monitor a preset condition corresponding to said vehicle and only activate said port door unlatching actuator upon receipt of said activation signal if said preset condition is met.

15. The port door unlatching system of claim 14, wherein said preset condition corresponds to a drive system of said vehicle being in park.

16. The port door unlatching system of claim 14, wherein said preset condition corresponds to a passenger cabin of said vehicle being unlocked.

17. The port door unlatching system of claim 14, wherein said preset condition corresponds to a user RFID tag being within a preset distance of said vehicle.

18. The port door unlatching system of claim 14, wherein said on-board controller is configured to activate a user notification system upon receipt of said activation signal if said preset condition is not met.

19. The port door unlatching system of claim 18, wherein said user notification system corresponds to a warning indicator integrated into said vehicle.

20. The port door unlatching system of claim 18, wherein said user notification system corresponds to a vehicle light.