System and Method to Operate an Automated Vehicle
Systems and methods for operating an automated vehicle such as an autonomous vehicle may include an autonomous guidance system, a method of automatically controlling and autonomous vehicle based on electronic messages from roadside infrastructure or other-vehicles, a method of automatically controlling an autonomous vehicle based on cellular telephone location information, pulsed LED vehicle-to-vehicle (V2V) communication system, a method and apparatus for controlling an autonomous vehicle, an autonomous vehicle with unobtrusive sensors, and adaptive cruise control integrated with a lane keeping assist system. The systems and methods may use information from radar, lidar, a camera or vision/image devices, ultrasonic sensors, and digital map data to determine a route or roadway position and provide for steering, braking, and acceleration control of a host vehicle.
1 . A method comprising:
receiving, via an electronic receiver of a vehicle, a message from another vehicle; and
responsive to receiving the message from the other vehicle, providing, by a computer system of the vehicle in communication with said electronic receiver and to a vehicle system of the vehicle, instructions that configure the vehicle system of the vehicle to automatically implement countermeasure behavior with the vehicle.
2 . The method of claim 1 , wherein:
the message includes data indicative of a location of the other vehicle;
the vehicle system includes a braking system; and
providing the instructions includes providing at least a portion of the instructions to the braking system that configure the braking system to apply brakes of the vehicle based on a speed of the vehicle and a distance between the vehicle and the location of the other vehicle.
3 . The method of claim 2 , wherein:
the message further includes data indicative of whether the other vehicle is stopped; and
providing the instructions further includes providing at least another portion of the instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the data indicative of whether the other vehicle is stopped.
4 . The method of claim 3 , wherein the other vehicle includes a school bus and the data indicative of whether the other vehicle is stopped is a stop signal status of the school bus.
5 . The method of claim 2 , wherein:
the message further includes data indicative of a safe following distance to the other vehicle; and
providing the instructions further includes providing at least another portion of the instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the safe following distance to the other vehicle.
6 . The method of claim 5 , wherein:
providing the instructions further includes providing the at least other portion of the instructions to the braking system to apply vehicle brakes of the vehicle in response to determining that a difference between the safe following distance of the other vehicle and the distance between the vehicle and the location of the other vehicle and is less than a threshold.
7 . The method of claim 6 , further comprising:
providing, by the computer system and to a powertrain system of the vehicle, additional instructions to adjust the speed of the vehicle so that the difference between the safe following distance of the other vehicle and the distance between the vehicle and the location of the other vehicle and is less than or equal to zero.
8 . The method of claim 2 , wherein:
the message further includes data indicative of an emergency warning light status of the other vehicle; and
providing the instructions further includes providing at least another portion of the instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the emergency warning light status of the other vehicle.
9 . The method of claim 8 , further comprising:
determining, via a forward looking sensor of the vehicle, a location of an unobstructed portion of a road shoulder, wherein
providing the instructions further includes providing the at least other portion of the instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the location of the unobstructed portion of the road shoulder.
10 . The method of claim 9 , further comprising:
determining a steering angle based on the distance between the vehicle and the other vehicle and the location of the unobstructed portion of the road shoulder, wherein
providing the instructions further includes providing additional instructions to at least one of a steering system of the vehicle or a power train system of the vehicle that adjust a travel path of the vehicle based on the steering angle.
11 . A autonomous system of a vehicle comprising:
an electronic receiver configured to receive a message from another vehicle; and
a computer system configured to in response to receiving the message from the other vehicle, provide instructions to a vehicle system that configures the vehicle system to automatically implement countermeasure behavior with the vehicle.
12 . The autonomous system of claim 11 , wherein:
the message includes data indicative of a location of the other vehicle;
the vehicle system includes a braking system; and
the computer system is configured to provide the instructions by providing instructions to the braking system that configure the braking system to apply brakes of the vehicle based on a speed of the vehicle and a distance between the vehicle and the location of the other vehicle.
13 . The autonomous system of claim 12 , wherein:
the message further includes data indicative of whether the other vehicle is stopped; and
the computer system is configured to provide the instructions by providing instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the data indicative of whether the other vehicle is stopped.
14 . The autonomous system of claim 13 , wherein the other vehicle includes a school bus and the data indicative of whether the other vehicle is stopped is a stop signal status of the school bus.
15 . The autonomous system of claim 12 , wherein:
the message further includes data indicative of a safe following distance to the other vehicle; and
the computer system is configured to provide the instructions by providing instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the safe following distance to the other vehicle.
16 . The autonomous system of claim 15 , wherein the computer system is configured to provide the instructions by providing instructions to the braking system to apply vehicle brakes of the vehicle in response to determining that a difference between the safe following distance of the other vehicle and the distance between the vehicle and the location of the other vehicle and is less than a threshold.
17 . The autonomous system of claim 16 , wherein the computer system is further configured to provide, to a powertrain system of the vehicle, additional instructions to adjust the speed of the vehicle so that the difference between the safe following distance of the other vehicle and the distance between the vehicle and the location of the other vehicle and is less than or equal to zero.
18 . The autonomous system of claim 12 , wherein:
the message further includes data indicative of an emergency warning light status of the other vehicle; and
the computer system is configured to provide the instructions by providing instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the emergency warning light status of the other vehicle.
19 . The autonomous system of claim 18 , further comprising:
determining, via a forward looking sensor of the vehicle, a location of an unobstructed portion of a road shoulder; and
determining a steering angle based on the distance between the vehicle and the other vehicle and the location of the unobstructed portion of the road shoulder,
wherein providing the instructions further includes:
providing instructions to the braking system that configure the braking system to apply brakes of the vehicle based further on the location of the unobstructed portion of the road shoulder; and
providing additional instructions to at least one of a steering system of the vehicle or a power train system of the vehicle that adjust a travel path of the vehicle based on the steering angle.
20 . A system comprising:
means for receiving a message by a vehicle and from another vehicle; and
means for providing instructions to a braking system of the vehicle or a power train system of the vehicle that configure the braking system or the power train system to automatically adjust a speed of the vehicle as a countermeasure behavior in response to receiving the message by the vehicle from the other vehicle.