Automated co-pilot control for autonomous vehicles

Patent metadata

Field	Value
Publication number	US-10073456-B2
Application number	US-201615353842-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Nov 17, 2016
Publication date	Sep 11, 2018
Grant date	Sep 11, 2018

Abstract

A control system for an autonomous vehicle includes at least one controller. The controller is programmed to receive first sensor readings from a first group of sensors, provide a first sensor fusion output based on the first sensor readings, the first sensor fusion output including a first detected state of a detected object, receive second sensor readings from a second group of sensors, and provide a second sensor fusion output based on the second sensor readings, the second sensor fusion output including a second detected state of the detected object. The controller is additionally programmed to, in response to the first detected state being outside a predetermined range of the second detected state, generate a diagnostic signal.

First claim

What is claimed is:

1. An automotive vehicle comprising:
a plurality of sensors configured to detect external features in the vicinity of the automotive vehicle;
an actuator configured to control vehicle steering, acceleration, braking, or shifting; and
at least one controller in electronic communication with respective sensors of the plurality of sensors and the actuator, the at least one controller being programmed with an automated driving system control algorithm and configured to automatically control the actuator based on the automated driving system control algorithm, the automated driving control system algorithm including:
a first sensor fusion algorithm configured to receive first sensor readings from a first group of respective sensors of the plurality of sensors and provide a first sensor fusion output based on the first sensor readings, the first sensor fusion output including a first detected state of a detected object,
a second sensor fusion algorithm configured to receive second sensor readings from a second group of respective sensors of the plurality of sensors and provide a second sensor fusion output based on the second sensor readings, the second sensor fusion output including a second detected state of the detected object, and
a sensor fusion arbitration algorithm configured to, in response to the first detected state being outside a predetermined range of the second detected state, generate a diagnostic signal;

wherein the at least one controller is further programmed to, in response to the diagnostic signal, control the actuator according to a fall back command.

2. The automotive vehicle of claim 1 , wherein the first detected state includes a first detected position, first detected velocity, and first detected acceleration of the detected object, and wherein the second detected state includes a second detected position, second detected velocity, and second detected acceleration of the detected object.

3. The automotive vehicle of claim 1 , wherein the diagnostic signal includes a parameter representative of a difference between the first detected state and the second detected state.

4. The automotive vehicle of claim 1 , wherein the at least one controller includes a first controller and a second controller, the first controller being programmed with the first sensor fusion algorithm and the second controller being programmed with the second sensor fusion algorithm.

5. The automotive vehicle of claim 1 , wherein the first group of respective sensors includes a respective sensor which is not among the second group of respective sensors.

6. A method of controlling a vehicle, comprising:
providing the vehicle with a plurality of sensors configured to detect external features in the vicinity of the vehicle;
providing the vehicle with an actuator configured to control vehicle steering, throttle, braking, or shifting;
providing the vehicle with at least one controller in electronic communication with respective sensors of the plurality of sensors and the actuator, the at least one controller being programmed with an automated driving control system algorithm;
receiving, via the at least one controller, first sensor readings from a first group of respective sensors of the plurality of sensors;
determining, via the at least one controller, a first sensor fusion output based on the first sensor readings, the first sensor fusion output including a first detected state of a detected object;
receiving, via the at least one controller, second sensor readings from a second group of respective sensors of the plurality of sensors;
determining, via the at least one controller, a second sensor fusion output based on the second sensor readings, the second sensor fusion output including a second detected state of a detected object;
in response to the first detected state being outside a predetermined range of the second detected state, automatically generating a diagnostic signal; and
in response to the diagnostic signal, automatically controlling the actuator according to a fall back command.

7. The method of claim 6 , wherein the first detected state includes a first detected position, first detected velocity, and first detected acceleration of the detected object, and wherein the second detected state includes a second detected position, second detected velocity, and second detected acceleration of the detected object.

8. The method of claim 6 , wherein the diagnostic signal includes a parameter representative of a difference between the first detected state and the second detected state.

9. The method of claim 6 , wherein providing the vehicle with at least one controller includes providing the vehicle with a first controller and a second controller, receiving first sensor readings is performed via the first controller, determining a first fusion output is performed via the first controller, receiving second sensor readings is performed via the second controller, and determining a second fusion output is performed via the second controller.

10. The method of claim 6 , wherein the first group of respective sensors includes a respective sensor which is not among the second group of respective sensors.

11. A control system for a vehicle including at least one controller programmed to:
receive first sensor readings from a first group of sensors;
provide a first sensor fusion output based on the first sensor readings, the first sensor fusion output including a first detected state of a detected object;
receive second sensor readings from a second group of sensors;
provide a second sensor fusion output based on the second sensor readings, the second sensor fusion output including a second detected state of the detected object;
in response to the first detected state being outside a predetermined range of the second detected state, generate a diagnostic signal; and
in response to the diagnostic signal, control at least one vehicle actuator according to a fall back command.

12. The control system of claim 11 , wherein the first detected state includes a first detected position, first detected velocity, and first detected acceleration of the detected object, and wherein the second detected state includes a second detected position, second detected velocity, and second detected acceleration of the detected object.

13. The control system of claim 11 , wherein the diagnostic signal includes a parameter representative of a difference between the first detected state and the second detected state.

14. The control system of claim 11 , wherein the at least one controller is further programmed to, in response to no diagnostic signal being generated, control the at least one vehicle actuator according to an automated driving algorithm.

15. The control system of claim 11 , wherein the first group of sensors includes a respective sensor which is not among the second group of sensors.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Mudalige Upali P
• Sundaram Padma

Classifications

• G01S13/865

  Combination of radar systems with lidar systems · CPC title

• G01S13/867

  Combination of radar systems with cameras · CPC title

• G01S13/931

  of land vehicles · CPC title

• G05D1/021 Primary

  specially adapted to land vehicles · CPC title

• B60W30/00

  Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units · CPC title