VEHICLE GUIDANCE SYSTEM

• US 20120095617A1
• Filed: 10/06/2011
• Published: 04/19/2012
• Est. Priority Date: 10/06/2011
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Martin, Douglas Raymond
• Granted Patent: US 8,483,899 B2
• Time in Patent Office: Days
• US Class Current: 701/1
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B62D 15/028 Guided parking by providing commands to the driver, e.g. acoustically or optically
• CPC Class Codes: G05D 1/0225 involving docking at a fixed facility, e.g. base station or loading bay parking aids B62D15/027
• CPC Class Codes: G05D 1/028 using a RF signal
• 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

Abstract

A vehicle guidance system is provided with a controller configured to receive input indicative of a relative position between a charging port and a charging pad, and to provide output indicative of a distance vector therebetween in response to the input. An interface communicates with the controller and is configured to display a base element representing the charging port and target element representing the charging pad positioned relative to each other according to the distance vector.

Claims

1. A vehicle guidance system comprising:

a controller configured to receive input indicative of a relative position between a charging port and a charging pad, and to provide output indicative of a distance vector therebetween in response to the input; and

an interface communicating with the controller and configured to display a base element representing the charging port and target element representing the charging pad positioned relative to each other according to the distance vector.

2. The system of claim 1 wherein the charging port is integrated with a vehicle, wherein the input comprises at least two direction signals, wherein each direction signal is indicative of an angular direction between a location on the vehicle and a location of the charging pad, and wherein the controller triangulates the distance vector in response to the at least two direction signals.

3. The system of claim 1 wherein the interface displays the base element overlaid upon the target element when the charging port is aligned with the charging pad.

4. The system of claim 1 wherein the distance vector is approximately zero when the charging port is aligned with the charging pad.

5. The system of claim 2 further comprising at least two sensor arrays communicating with the controller, wherein each sensor array is configured to provide a direction signal indicative of an angular direction between the sensor array and the charging pad and wherein the controller is further configured to provide the output indicative of the distance vector in response to the direction signals.

6. The system of claim 5 wherein the at least two sensor arrays comprise a first sensor array and a second sensor array aligned with each other along a transverse axis and wherein an angular direction between the first sensor array and the charging port and an angular direction between the second sensor array and the charging port are determined relative to the transverse axis.

7. The system of claim 5 wherein each sensor array further comprises at least two sensors each being configured to provide output indicative of a time when a signal was received from a transmitter electrically connected to the charging pad, and a microcontroller communicating with the sensors and configured to provide the direction signal in response to the output indicative of the times when the signals were received.

8. The system of claim 7 wherein the sensors are internally mounted within a body of the vehicle and configured to receive a radio frequency (RF) wireless signal.

9. The system of claim 7 wherein the sensors are externally mounted upon a body of the vehicle and configured to receive an infrared (IR) wireless signal.

10. A vehicle guidance system comprising:

a sensor array comprising;

at least two sensors each configured to provide output indicative of a time when a signal was received from a transmitter, and

a microcontroller communicating with the sensors and configured to provide output indicative of an angular direction between the sensor array and the transmitter, wherein the angular direction is based on a difference between the times when the signals were received.

11. The system of claim 10 further comprising:

at least two sensor arrays each being configured to provide output indicative of an angular direction between the sensor array and the transmitter;

a controller in communication with the sensor arrays and configured to provide output indicative of a distance vector between at least one of the sensor arrays and the transmitter in response to the output indicative of the angular direction between the sensor array and the transmitter; and

an interface communicating with the controller and configured to display a base element representing a charging port and a target element representing a charging pad positioned relative to each other according to the distance vector.

12. The system of claim 11 wherein the controller is further configured to provide an activation signal to an external controller, the external controller being electrically connected to the transmitter, and wherein the external controller instructs the transmitter to provide the signal in response to receiving the activation signal.

13. The system of claim 12 wherein the controller is further configured to provide the activation signal in response to a garage door being opened.

14. The system of claim 10 wherein the microcontroller is further configured to compare the output indicative of a time when a signal was received from a transmitter to predetermined data to calculate the angular direction.

15. A vehicle comprising:

a charging port configured to receive an inductive charging current;

at least two sensor arrays, each configured to provide output indicative of an angular direction between the sensor array and a transmitter remote from the vehicle;

a controller configured to provide output indicative of a distance vector between the charging port and the transmitter based on the output indicative of the angular direction between the sensor arrays and transmitter; and

an interface communicating with the controller and configured to display a base element representing the charging port and a target element representing a charging pad positioned relative to each other according to the distance vector.

16. The vehicle of claim 15 further comprising a battery electrically connected to the charging port for storing electrical power

17. The vehicle of claim 15 wherein the charging port is electromagnetically coupled to a charging pad of an external power supply during charging.

18. The vehicle of claim 17 wherein the charging port comprises a secondary coil for receiving electrical power from a primary coil of the charging pad during charging.

19. The vehicle of claim 15 further comprising at least one electric motor configured to provide output torque for propelling the vehicle.

20. The vehicle of claim 15 wherein the charging port receives electrical power from an external power supply having a solar panel.