Vehicle hitch assistance system

• US 10,035,457 B2
• Filed: 04/24/2014
• Issued: 07/31/2018
• Est. Priority Date: 04/26/2013
• Status: Active Grant

• Current Assignee: Jaguar Land Rover Limited (TATA Motors Limited)
• Original Assignee: Jaguar Land Rover Limited (TATA Motors Limited)
• Inventors: Singh, Harpreet, Ward, Damian, Bradley, Andrew
• Primary Examiner(s): Williams, Jeffery
• Application Number:
  US14/784,195
• Publication Number:
  US 20160075281A1
• Time in Patent Office: 1,559 Days
• Field of Search: 348118
• CPC Class Codes: B60D 1/36 for facilitating connection, e.g. hitch catchers , visual guide means, signalling aids B60D1/465 takes precedence; vehicle signalling in general B60Q; optical arrangements specially adapted for viewing trailer-hitches B60R1/003
• CPC Class Codes: B60D 1/62 involving supply lines, electric circuits, or the like
• CPC Class Codes: B60G 17/015 the regulating means comprising electric or electronic elements B60G17/002, B60G17/005 take precedence
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/003 for viewing trailer hitches
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 2300/808 for facilitating docking to a trailer
• CPC Class Codes: B62D 15/025 Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation B62D1/28 takes precedence
• CPC Class Codes: B62D 15/0265 Automatic obstacle avoidance by steering
• CPC Class Codes: B62D 15/028 Guided parking by providing commands to the driver, e.g. acoustically or optically
• CPC Class Codes: B62D 15/0285 Parking performed automatically
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads

Abstract

A system (1) for monitoring available space to maneuver a vehicle (3) to align a tow hitch (5) mounted to the vehicle with a trailer coupling (7) mounted to a trailer (9). An imaging system (11, 13, 15) is provided to generate image data. A processor (37) is configured to analyze said image data to identify obstructions proximal to said vehicle and/or to said trailer and to determine if there is sufficient space available to maneuver the vehicle to align the tow hitch with the trailer coupling.

Claims

1. A system for monitoring available space to maneuver a vehicle to align a tow hitch mounted to the vehicle with a trailer coupling mounted to a trailer, the system comprising:

an imaging system disposed on the vehicle to generate image data; and

a processor configured to;

receive the image data generated by the imaging system and to analyze said image data to identify obstructions proximal to said vehicle and/or to said trailer;

determine a position of the trailer relative to the vehicle and to calculate a required path to align the tow hitch with the trailer coupling such that a hitch angle is within a predefined range when the vehicle is coupled to the trailer, the hitch angle being defined between a longitudinal axis of the vehicle and a longitudinal axis of the trailer; and

determine if there is sufficient space available to maneuver the vehicle along the calculated path to align the tow hitch with the trailer coupling to provide the required alignment.

2. The system as claimed in claim 1, wherein the processor is configured to generate a steering guidance signal for steering the vehicle at least substantially to align the tow hitch with the trailer coupling avoiding any obstructions identified by said processor.

3. The system as claimed in claim 1, wherein the processor is configured to determine if there is sufficient space available to maneuver the trailer when the tow hitch is coupled to the trailer coupling.

10. The system as claimed in claim 2, wherein the processor is configured to determine if there is sufficient space available to maneuver the trailer when the tow hitch is coupled to the trailer coupling.

11. The system as claimed in claim 1, wherein the system provides a manual override to the obstruction identification performed by the processor.

12. The system as claimed in claim 1, wherein the processor is configured to calculate a route required to maneuver the vehicle into a position relative to the trailer based on a vehicle parameter.

13. The system as claimed in claim 12, wherein the vehicle parameter comprises vehicle length and/or vehicle width.

14. The system as claimed in claim 2, wherein the processor is configured to generate the steering guidance signal dynamically or by selecting a predefined steering guidance signal based on the available space to maneuver the vehicle as determined by the processor.

18. The system as claimed in claim 1, wherein the processor is configured to determine if the hitch angle is greater than a jack-knife angle and, if the hitch angle is greater than the jack-knife angle, to analyze the image data to determine if there is sufficient space available around the vehicle to complete the hitching maneuver.

19. The system as claimed in claim 1, wherein the processor is configured to adjust the calculated path of the vehicle to modify the hitch angle if the identified obstructions will limit the turning circle of the trailer.

4. A method of monitoring available space to maneuver a vehicle to align a tow hitch mounted to the vehicle with a trailer coupling mounted to a trailer, the method comprising:

receiving image data from an imaging system disposed on the vehicle;

analyzing, via a processor, said image data to identify obstructions proximal to said vehicle and/or to said trailer;

determining, via the processor, a position of the trailer relative to the vehicle and calculating a required path to align the tow hitch with the trailer coupling such that a hitch angle is within a predefined range when the vehicle is coupled to the trailer, the hitch angle being defined between a longitudinal axis of the vehicle and a longitudinal axis of the trailer; and

determining, via the processor, if there is sufficient space available to maneuver the vehicle along the calculated path to align the tow hitch with the trailer coupling to provide the required alignment.

5. The method as claimed in claim 4, comprising generating, via the processor, a steering guidance signal for steering the vehicle at least substantially to align the tow hitch with the trailer coupling avoiding any obstructions identified during analysis of said image data.

6. The method as claimed in claim 4, comprising determining, via the processor, if there is sufficient space available to maneuver the trailer when the tow hitch is coupled to the trailer coupling.

7. The method as claimed in claim 5, comprising determining, via the processor, if there is sufficient space available to maneuver the trailer when the tow hitch is coupled to the trailer coupling.

8. The method as claimed in claim 4, comprising determining, via the processor, a route required to maneuver the vehicle into a position relative to the trailer based on a vehicle parameter.

9. The method as claimed in claim 5, comprising generating, via the processor, the steering guidance signal dynamically or by selecting a predefined steering guidance signal based on the available space to maneuver the vehicle as determined by the processor.

15. A processor for a vehicle, the processor programmed to:

receive image data from an imaging system disposed on the vehicle;

analyze the image data to identify obstructions proximal to the vehicle and/or to a trailer and to determine a position of the trailer relative to the vehicle;

calculate a required path to align the tow hitch with the trailer coupling such that a hitch angle is within a predefined range when the vehicle is coupled to the trailer, the hitch angle being defined between a longitudinal axis of the vehicle and a longitudinal axis of the trailer; and

determine if there is sufficient space available to maneuver the vehicle along the calculated path to align a tow hitch with a coupling of the trailer to provide the required alignment.

16. The processor as claimed in claim 15, wherein the processor is configured to generate a steering guidance signal for steering the vehicle at least substantially to align the tow hitch with the trailer coupling avoiding any obstructions identified by the processor.

17. A computer program product for monitoring available space to maneuver a vehicle to align a tow hitch mounted to the vehicle with a trailer coupling mounted to a trailer, the computer program product comprising a non-transitory computer readable storage medium having encoded thereon instructions that, when executed on a processor, cause the processor to perform operations comprising:

receiving image data from an imaging system disposed on the vehicle;

analyzing said image data to identify obstructions proximal to said vehicle and/or to said trailer and to determine a position of the trailer relative to the vehicle;

calculating a required path to align the tow hitch with the trailer coupling such that a hitch angle is within a predefined range when the vehicle is coupled to the trailer, the hitch angle being defined between a longitudinal axis of the vehicle and a longitudinal axis of the trailer; and

determining if there is sufficient space available to maneuver the vehicle along the calculated path to align the tow hitch with the trailer coupling to provide the required alignment.