System and method for detecting improper sensor installation within a vehicle to mitigate hazards associated with object detection

Patent metadata

Field	Value
Publication number	US-10452067-B2
Application number	US-201715440348-A
Country	US
Kind code	B2
Filing date	Feb 23, 2017
Priority date	Feb 23, 2017
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

A system according to the principles of the present disclosure includes a current object position module, an expected position module, and an object position comparison module. The current object position module can determine a first position of an object with respect to a position of a vehicle based upon sensor data generated by a first object detection sensor within the vehicle and determines a second position of the object with respect to the position of the vehicle based upon sensor data generated by a second object detection sensor. The expected object position module can determine an expected position of the object with respect to the position of the vehicle based upon the first position of the object. The object position comparison module can determine whether at least one object detection sensor is improperly installed within the vehicle based upon comparing the second position of the object with the expected position.

First claim

What is claimed is:

1. A system comprising:
a current object position module configured to determine a first position of an object with respect to a position of a vehicle based upon sensor data generated by at least a first object detection sensor of a plurality of object detection sensors disposed within the vehicle and determines a second position of the object with respect to the position of the vehicle based upon sensor data generated by a second object detection sensor of the plurality of object detection sensors;
an expected object position module configured to determine an expected position of the object with respect to the position of the vehicle based upon the first position of the object and sensed data corresponding to overlapping detection regions;
an object detection orientation database configured to maintain expected orientation parameters representing an expected angular deviation of the second object detection sensor with respect to the first object detection sensor, wherein the expected object position module is configured to determine the expected position of the object with respect to the position of the vehicle based upon at least the first position of the object and the expected angular deviation; and
an object position comparison module configured to determine that at least one object detection sensor of the plurality of object detection sensors is improperly installed within the vehicle when a comparison of at least the second position of the object with the expected position of the object indicates that the second position deviates from the expected position,
wherein the first position comprises a first X-coordinate and a first Y-coordinate indicative of a relative position of the object detected by the first object detection sensor and the second position comprises a second X-coordinate and a second Y-coordinate indicative of a relative position of the object detected by the second object detection sensor and the expected position comprises a first expected relative change between the second X-coordinate and the first X-coordinate and a second expected relative change between the second Y-coordinate and the first Y-coordinate.

2. The system as recited in claim 1 wherein respective sensors of the plurality of object detection sensors comprises at least one of short-range radars, medium-range radars, long-range radars, image capture devices, light detection and ranging devices, and ultrasound devices.

3. The system as recited in claim 1 further comprising:
an alert module configured to generate an alert when the object position comparison module determines that at least one object detection sensor of the plurality of object detection sensors is improperly installed.

4. The system as recited in claim 3 wherein the alert comprises at least one of an on-board diagnostic alert and a digital trouble code.

5. The system as recited in claim 1 further comprising a vehicle control module configured to generate a vehicle control signal to modify at least one operational state of the vehicle when the object position comparison module determines that at least one object detection sensor of the plurality of object detection sensors is improperly installed.

6. The system as recited in claim 1 wherein the expected object position module is further configured to generate an expected object position table that defines the expected position of the object with respect to the position of the vehicle.

7. The system as recited in claim 6 wherein the expected object position table is generated based upon an orientation parameter of the first object detection sensor.

8. A method comprising:
determining a first position of an object with respect to a position of a vehicle based upon sensor data generated by a first object detection sensor of a plurality of object detection sensors disposed within the vehicle and determines a second position of the object with respect to the position of the vehicle based upon sensor data generated by a second object detection sensor of the plurality of object detection sensors;
determining an expected position of the object with respect to the position of the vehicle based upon at least the first position of the object;
determining whether at least one object detection sensor of the plurality of object detection sensors is improperly installed within the vehicle based upon comparing at least the second position of the object with the expected position of the object,
wherein the first position comprises a first X-coordinate and a first Y-coordinate indicative of a relative position of the object detected by the first object detection sensor and the second position comprises a second X-coordinate and a second Y-coordinate indicative of a relative position of the object detected by the second object detection sensor and the expected position comprises a first expected relative change between the second X-coordinate and the first X-coordinate and a second expected relative change between the second Y-coordinate and the first Y-coordinate; and
determining that at least one object detection sensor of the plurality of object detection sensors is improperly installed within the vehicle when at least one of (1) the first expected relative change does not correspond to a first actual change comprising a difference between the second X-coordinate and the first X-coordinate and (2) the second expected relative change does not correspond to a second actual change comprising a difference between the second Y-coordinate and the first Y-coordinate.

9. The method as recited in claim 8 wherein respective sensors of the plurality of object detection sensors comprises at least one of short-range radars, medium-range radars, long-range radars, image capture devices, light detection and ranging devices, and ultrasound devices.

10. The method as recited in claim 8 further comprising:
generating an alert upon determining that at least one object detection sensor of the plurality of object detection sensors is improperly installed.

11. The method as recited in claim 10 wherein the alert comprises at least one of an on-board diagnostic alert and a digital trouble code.

12. The method as recited in claim 10 further comprising generating a control signal to modify at least one operational state of the vehicle upon determination that at least one object detection sensor of the plurality of object detection sensors is improperly installed.

13. The method as recited in claim 8 further comprising generating an expected object position table that defines the expected position of the object with respect to the position of the vehicle.

14. The method as recited in claim 13 wherein generating the expected object position table further comprises generating the expected object position table based upon an orientation parameter of the first object detection sensor.

15. The method as recited in claim 14 wherein determine the expected position of the object further comprises generating the expected position of the object with respect to the position of the vehicle based upon at least the first position of the object and an expected angular deviation of the second object detection sensor with respect to the first object detection sensor.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Adam Paul A
• Song Xiaofeng F
• Feldman Dmitriy
• Hoang Kevin K

Classifications

• G01S7/4026

  Antenna boresight · CPC title

• G01S13/723

  by using numerical data · CPC title

• G01S2013/9324

  Alternative operation using ultrasonic waves · CPC title

• G01S2013/9323

  Alternative operation using light waves · CPC title

• G01S2013/93274

  on the side of the vehicles · CPC title