Vehicle pedestrian safety system and methods of use and manufacture thereof

• US 9,786,178 B1
• Filed: 06/20/2016
• Issued: 10/10/2017
• Est. Priority Date: 08/02/2013
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Bai, Xue, Miucic, Radovan
• Primary Examiner(s): Nwugo, Ojiako
• Application Number:
  US15/187,764
• Time in Patent Office: 477 Days
• Field of Search: 340435, 340436, 340438, 701 36, 701 49, 701300, 701301
• CPC Class Codes: B60K 2360/186 Displaying information according to relevancy
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: B60K 2370/186 Displaying Information according to relevancy
• CPC Class Codes: B60K 2370/334 Projection means
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• CPC Class Codes: B60Q 1/525 automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
• CPC Class Codes: B60Q 5/006 indicating risk of collision between vehicles or with pedestrians
• CPC Class Codes: B60Q 9/008 for anti-collision purposes
• CPC Class Codes: G08B 21/06 indicating a condition of sleep, e.g. anti-dozing alarms
• CPC Class Codes: G08G 1/161 Decentralised systems, e.g. inter-vehicle communication
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

The systems and methods are directed to a vehicle control system for use with: a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian'"'"'s location, and at least one source of vehicle system data relevant to the vehicle'"'"'s location and movement. The control system can include a processor that is configured to determine a vehicle'"'"'s current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, and define a plurality of warning zones based on the vehicle polygons, and determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons.

Claims

1. A vehicle control system for use with:

a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian'"'"'s location, and at least one source of vehicle system data relevant to the vehicle'"'"'s location and movement, the control system, comprising;

a processor that is configured to;

access the pedestrian data and the vehicle system data, determine a vehicle'"'"'s current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, classify each pedestrian detected in the pedestrian data as either at a left position or a right position relative to a centerline of the predicted path of the vehicle, define a plurality of warning zones based on the vehicle polygons, each warning zone defined by one or more vehicle polygons within the predicted path of the vehicle with a different level of warning based on a distance of each vehicle polygon from the vehicle, determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons, and actuate a warning to a vehicle operator based on an intersection of the one or more pedestrian polygons with one or more of the vehicle polygons.

2. The vehicle control system of claim 1, wherein the processor builds the predetermined number of hardcoded vehicle polygons based on at least a speed of the vehicle to determine a length of each vehicle polygon.

3. The vehicle control system of claim 1, wherein the processor builds the predetermined number of hardcoded vehicle polygons based on predetermined distances from a center point of the vehicle to determine a width of each vehicle polygon.

4. The vehicle control system of claim 1, wherein the processor builds the at least one pedestrian polygon based on at least a speed of the pedestrian to determine a length of each pedestrian polygon.

5. The vehicle control system of claim 1, further comprising the processor configured to classify each pedestrian detected in the pedestrian data as either a left movement direction or a right movement direction relative to a centerline of the predicted path of the vehicle.

6. The vehicle control system of claim 5, further comprising:

a display screen operationally connected to the controller, wherein the processor is configured to actuate the warning to the display screen, wherein the processor can display a relative direction and position each pedestrian detected in the pedestrian data.

7. The vehicle control system of claim 1, wherein the processor is further configured to actuate the warning based on an intersection of the one or more pedestrian polygons with one or more of the warning zones.

8. The vehicle control system of claim 1, wherein the processor is further configured to build the vehicle polygons by defining coordinates at each corner of each polygon based on an offset distance from a center point location of the vehicle.

9. The vehicle control system of claim 1, wherein the processor is further configured to build the vehicle polygons by defining a lane width as a width of each vehicle polygon and defining a lane curve as curvature of the predetermined number of vehicle polygons.

10. A vehicle control system for use with:

a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian'"'"'s location, and at least one source of vehicle system data relevant to the vehicle'"'"'s location and movement, the control system, comprising;

a vehicle communication system that is configured to receive pedestrian data from a pedestrian transceiver device, the pedestrian data including one or more pedestrian locations relevant to a location of the vehicle;

an electronic storage medium that is configured to store at least one of the pedestrian data and vehicle system data, a processor that is configured to;

access the pedestrian data and the vehicle system data, determine a vehicle'"'"'s current location and speed based on the vehicle system data, build a predetermined number of vehicle polygons hardcoded into an application for representing a predicted path of the vehicle, build at least one pedestrian polygon representing a predicted path for at least one pedestrian detected in pedestrian data, classify each pedestrian detected in the pedestrian data as either at a left position or a right position relative to a centerline of the predicted path of the vehicle, define a plurality of warning zones based on the vehicle polygons, each warning zone defined by one or more vehicle polygons within the predicted path of the vehicle with a different level of warning based on a distance of each vehicle polygon from the vehicle, determine if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons, and actuate a warning to a vehicle operator based on an intersection of the one or more pedestrian polygons with one or more of the vehicle polygons.

11. The vehicle control system of claim 10, wherein the processor builds the predetermined number of hardcoded vehicle polygons based on at least a speed of the vehicle to determine a length of each vehicle polygon.

12. The vehicle control system of claim 10, wherein the processor builds the predetermined number of hardcoded vehicle polygons based on predetermined distances from a center point of the vehicle to determine a width of each vehicle polygon.

13. The vehicle control system of claim 10, wherein the processor builds the at least one pedestrian polygon based on at least a speed of the pedestrian to determine a length of each pedestrian polygon.

14. The vehicle control system of claim 10, further comprising the processor configured to classify each pedestrian detected in the pedestrian data as either a left movement direction or a right movement direction relative to a centerline of the predicted path of the vehicle.

15. The vehicle control system of claim 14, further comprising:

a display screen operationally connected to the controller, wherein the processor is configured to actuate the warning to the display screen, wherein the processor can display a relative direction and position each pedestrian detected in the pedestrian data.

16. The vehicle control system of claim 10, wherein the processor is further configured to actuate the warning based on an intersection of the one or more pedestrian polygons with one or more of the warning zones.

17. The vehicle control system of claim 10, wherein the processor is further configured to build the vehicle polygons by defining coordinates at each corner of each polygon based on an offset distance from a center point location of the vehicle, and wherein the processor is further configured to build the vehicle polygons by defining a lane width as a width of each vehicle polygon and defining a lane curve as curvature of the predetermined number of vehicle polygons.

18. A method to enhance pedestrian safety using a vehicle control system that is configured for use with:

a vehicle communications network, at least one source of pedestrian data relevant to at least one pedestrian'"'"'s location, and at least one source of vehicle system data relevant to the vehicle'"'"'s location and movement, the method comprising;

accessing the pedestrian data and the vehicle system data;

determining the vehicle'"'"'s current location and speed based on the vehicle system data;

determining the pedestrian'"'"'s current location and speed based on the pedestrian data;

classify each pedestrian detected in the pedestrian data as either at a left position or a right position relative to a centerline of the predicted path of the vehicle, building a predetermined number of vehicle polygons hardcoded into an application that represent a predicted path of the vehicle;

building at least one pedestrian polygon that represents a predicted path the pedestrian;

defining a plurality of warning zones based on the vehicle polygons, each warning zone defined by one or more vehicle polygons within the predicted path of the vehicle with a different level of warning based on a distance of each vehicle polygon from the vehicle;

determining if one or more of the pedestrian polygons intersects at least one of the predetermined number of hardcoded vehicle polygons; and

actuating a warning to a vehicle operator based on an intersection of the one or more pedestrian polygons with one or more of the vehicle polygons.