VEHICLE CONTROL SYSTEM FOR ALIGNING INDUCTIVE CHARGING CONNECTION

• US 20150231981A1
• Filed: 02/18/2015
• Published: 08/20/2015
• Est. Priority Date: 02/18/2014
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: KEES, Donatus Andreas Josephine, PETRIDIS, Anthemios Philemon
• Granted Patent: US 9,487,101 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60L 1/14 to electric lighting circuits
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/37 using optical position determination, e.g. using cameras
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B62D 15/0285 Parking performed automatically
• 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 1/0234 using optical markers or beacons optical beacons per se G01S1/70
• 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

Abstract

A vehicle control system, a surface marking for a surface upon which a vehicle can be positioned and a method of positioning a vehicle is provided. The vehicle control system is configured to position a vehicle. The vehicle comprises a mobile inductive charging point. The vehicle control system comprises one or more parking sensors configured to determine the position of the vehicle relative to a surface upon which the vehicle is positioned and/or obstacles around the vehicle. The one or more parking sensors are further configured to locate a visual indicator indicating the position of a fixed inductive charging point relative to the vehicle, and a parking assistance controller configured to automatically park the vehicle in a parking space on the surface based on data from the one or more parking sensors.

Claims

1. A vehicle control system configured to position a vehicle, the vehicle comprising a mobile inductive charging point, wherein the vehicle control system comprises:

one or more parking sensors configured to determine the position of the vehicle relative to a surface upon which the vehicle is positioned, wherein the one or more parking sensors are further configured to locate a visual indicator indicating the position of a fixed inductive charging point relative to the vehicle; and

a parking assistance controller configured to automatically park the vehicle in a parking space on the surface based on data from the one or more parking sensors,

wherein the parking assistance controller is further configured to use data from the one or more parking sensors to position the vehicle in an aligned position in which the fixed inductive charging point and the mobile inductive charging point are substantially aligned.

2. The vehicle control system of claim 1, wherein the parking sensors are configured to locate a visual indicator that is on the surface upon which the vehicle is positioned.

3. The vehicle control system of claim 2, wherein the visual indicator is substantially flat with respect to a plane of the surface upon which the vehicle is positioned.

4. The vehicle control system of claim 3, wherein the parking assistance controller is configured to determine the position of the vehicle relative to the fixed charging point when the vehicle has passed over the fixed inductive charging point and the location of the fixed inductive charging point is out of view of the one or more parking sensors.

5. The vehicle control system of claim 4, wherein the parking sensors are configured to locate a visual indicator of the fixed inductive charging point that is provided at least partially outside of the location of the fixed inductive charging point and the parking assistance controller is configured to position the vehicle relative to the fixed inductive charging point based on the position of the visual indicator sensed by the one or more parking sensors.

6. The vehicle control system of claim 5, wherein the parking sensors are configured to locate a visual indicator of the fixed inductive charging point that comprises a vehicle trajectory indicator, wherein the vehicle trajectory indicator is configured to assist the vehicle control system in positioning the vehicle in the aligned position.

7. The vehicle control system of claim 6, wherein the parking sensors are configured to locate a visual indicator of the fixed inductive charging point that is arranged such that at least a discrete marker of the visual indicator remains visible to the one or more parking sensors once the vehicle is in the aligned position.

8. The vehicle control system of claim 7, wherein the discrete marker of the visual indicator that remains visible to the one or more parking sensors once the vehicle is in the aligned position comprises a T-shaped portion.

9. The vehicle control system of claim 4, wherein the parking sensors are configured to locate a discrete marker of the visual indicator of the fixed inductive charging point that does not extend beyond the location of the fixed inductive charging point, such that the discrete marker is not sensed by the one or more parking sensors once the vehicle has passed over the fixed inductive charging point, and the parking assistance controller is configured to position the vehicle relative to the fixed inductive charging point based on the position of the discrete marker last sensed by the one or more parking sensors.

10. The vehicle control system of claim 9, wherein the parking assistance controller is further configured to calculate the position and orientation of the vehicle since the discrete marker was last sensed based on a velocity and orientation of the vehicle.

11. A vehicle comprising:

an inductive charger;

a sensor; and

a controller configured to position the vehicle to align the inductive charger with a fixed charger associated with a parking surface based on data indicating relative position between the inductive and fixed chargers that is derived after the sensor has passed over an indicator substantially flush with the surface indicating a position of the fixed charger and after the indicator is beyond view of the sensor.

12. A surface marking for a surface upon which a vehicle can be positioned, the marking comprising a visual indicator on a surface indicating a position of a fixed inductive charging point, the visual indicator being arranged so as to be visible to a parking sensor of a vehicle comprising a mobile inductive charging point, the visual indicator being further arranged so as to aid a parking assistance controller using data from the one or more parking sensors to position the vehicle in an aligned position in which the fixed inductive charging point and the mobile inductive charging point are substantially aligned.

13. The surface marking of claim 12, wherein the visual indicator comprises a discrete marker that is located on the fixed inductive charging point or a set distance away from the fixed inductive charging point.

14. The surface marking of claim 13, wherein the visual indicator comprises a parking trajectory indicator that is configured to indicate an optimal trajectory for positioning the vehicle in an aligned position.

15. The surface marking of claim 14, wherein the visual indicator is configured to indicate the positions of a plurality of fixed inductive charging points.