Self-driving vehicle's response to a proximate emergency vehicle

Patent metadata

Field	Value
Publication number	US-9869560-B2
Application number	US-201514815361-A
Country	US
Kind code	B2
Filing date	Jul 31, 2015
Priority date	Jul 31, 2015
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

A computer-implemented method, system, and/or computer program product controls self-driving vehicles (SDVs). An emergency message is transmitted to a receiver within a self-driving vehicle (SDV). The emergency message describes an emergency state of an emergency vehicle and an identified future route of the emergency vehicle. In response to the SDV receiving the emergency message, the SDV is redirected, via an auto-control hardware system on the SDV, to a location and on a route that does not conflict with the identified future route of the emergency vehicle.

First claim

What is claimed is:

1. A computer-implemented method for controlling self-driving vehicles (SDVs), the computer-implemented method comprising:
transmitting, to a receiver within a self-driving vehicle (SDV), an emergency message, wherein the emergency message describes an emergency state of an emergency vehicle and an identified future route of the emergency vehicle, wherein the identified future route is a planned route to an emergency destination for the emergency vehicle that includes a first pathway;
in response to the SDV receiving the emergency message, redirecting, via an auto-control hardware system on the SDV, the SDV to drive to a second pathway that does not conflict with the identified future route of the emergency vehicle; and
in response to the receiver within the SDV receiving the emergency message, automatically transmitting, to the emergency vehicle, real-time current traffic patterns of a current location of the SDV, wherein the real-time current traffic patterns are generated based on positioning signals generated by positioning systems in multiple SDVs that are in the current location of the SDV.

2. The computer-implemented method of claim 1 , wherein the SDV is initially operating in manual mode in which the SDV is manually controlled by a driver of the SDV, and wherein the computer-implemented method further comprises:
in response to the receiver within the SDV receiving the emergency message, one or more processors automatically switching control of the SDV from the manual mode to an autonomous mode, wherein the autonomous mode directs the auto-control hardware system on the SDV to autonomously control movement of the SDV.

3. The computer-implemented method of claim 1 , further comprising:
transmitting, to the receiver within the SDV, the emergency message in response to a warning system being activated within the emergency vehicle, wherein the warning system warns the SDV of the emergency state of the emergency vehicle.

4. The computer-implemented method of claim 1 , further comprising:
adjusting, by one or more processors, a level of autonomous control of the SDV by the auto-control hardware system on the SDV based on a presence of fragile cargo being transported by the SDV.

5. The computer-implemented method of claim 1 , further comprising:
retrieving, by one or more processors, data describing historic traffic patterns of the identified future route; and
adjusting, via the auto-control hardware system on the SDV, said redirecting of the SDV according to the historic traffic patterns of the identified future route.

6. The computer-implemented method of claim 1 , further comprising:
in response to receivers within multiple SDVs receiving the emergency message, automatically transmitting, to the emergency vehicle, real-time current traffic patterns of current locations of the multiple SDVs.

7. The computer-implemented method of claim 1 , wherein the identified future route is on a first roadway, and wherein the computer-implemented method further comprises:
receiving, from multiple SDVs along the identified future route, real-time current traffic patterns of current locations of the multiple SDVs;
redirecting, via auto-control hardware systems on the multiple SDVs, the SDVs to positions that clear out a new route on a second roadway for the emergency vehicle, wherein the first roadway and the second roadway are different roadways; and
transmitting a redirection message to the emergency vehicle, wherein the redirection message redirects the emergency vehicle to the new route after the SDVs have been repositioned to clear out the new route.

8. The computer-implemented method of claim 1 , wherein the SDV is equipped with a minimum spacing device that automatically maintains a predefined minimum distance between the SDV and another vehicle, and wherein the computer-implemented method further comprises:
in response to the SDV receiving the emergency message, modifying the predefined minimum distance between the SDV and said another vehicle.

9. The computer-implemented method of claim 1 , further comprising:
assigning, by one or more processors, a driver of the SDV to a cohort of SDV drivers that each have a particular trait; and
adjusting, by one or more processors, a level of autonomous control of the SDV by the auto-control hardware system on the SDV based on traits of non-driver occupants in the SDV.

10. The computer-implemented method of claim 1 , further comprising:
retrieving, by one or more processors, historical data related to a frequency of activation of the autonomous mode in other SDVs in a particular geography; and
adjusting, by one or more processors, a level of autonomous control of the SDV by the auto-control hardware system on the SDV based on the frequency of activation of the autonomous mode in the other SDVs in the particular geography.

11. A computer program product for controlling self-driving vehicles (SDVs), the computer program product comprising a non-transitory computer readable storage medium having program code embodied therewith, the program code readable and executable by a processor to perform a method comprising:
transmitting, to a receiver within a self-driving vehicle (SDV), an emergency message, wherein the emergency message describes an emergency state of an emergency vehicle and an identified future route of the emergency vehicle, wherein the identified future route is a planned route to an emergency destination for the emergency vehicle that includes a first pathway; and
in response to the SDV receiving the emergency message, redirecting, via an auto-control hardware system on the SDV, the SDV to drive to a second pathway that does not conflict with the identified future route of the emergency vehicle.

12. The computer program product of claim 11 , wherein the SDV is initially operating in manual mode in which the SDV is manually controlled by a driver of the SDV, and wherein the method further comprises:
in response to the receiver within the SDV receiving the emergency message, automatically switching control of the SDV from the manual mode to an autonomous mode, wherein the autonomous mode directs the auto-control hardware system on the SDV to autonomously control movement of the SDV.

13. The computer program product of claim 11 , wherein the method further comprises:
adjusting a level of autonomous control of the SDV by the auto-control hardware system on the SDV based on traits of non-driver occupants in the SDV.

14. The computer program product of claim 11 , wherein the SDV is equipped with a minimum spacing device that automatically maintains a predefined minimum distance between the SDV and another vehicle, and wherein the method further comprises:
in response to the SDV receiving the emergency message, reducing the predefined minimum distance between the SDV and said another vehicle.

15. A computer system comprising:
a processor, a computer readable memory, and a non-transitory computer readable storage medium;
first program instructions to transmit, to a receiver within a self-driving vehicle (SDV), an emergency message, wherein the emergency message describes an emergency state of an emergency vehicle and an identified future route of the emergency vehicle, wherein the identified future route is a planned route to an emergency destination for the emergency vehicle that includes a first pathway;
second program instructions to, in response to the SDV receiving the emergency message, redirect, via an auto-control hardware system on the SDV, the SDV to drive to a second pathway that does not conflict with the identified fu

Assignees

• IBM

Inventors

• Gordon Michael S
• Kozloski James R
• Kundu Ashish
• Malkin Peter K
• Pickover Clifford A

Classifications

• B60W2556/65

  Data transmitted between vehicles · CPC title

• B60W30/0956

  the prediction being responsive to traffic or environmental parameters · CPC title

• G01C21/3415 Primary

  Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents · CPC title

• B60W50/14

  Means for informing the driver, warning the driver or prompting a driver intervention · CPC title

• G01C21/3492

  employing speed data or traffic data, e.g. real-time or historical (traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968) · CPC title