Measuring operator readiness and readiness testing triggering in an autonomous vehicle

Abstract

This disclosure relates to a system and method for transitioning vehicle control between autonomous operation and manual operation. The system includes sensors configured to generate output signals conveying information related to the vehicle and its operation. During autonomous vehicle operation, the system gauges the level of responsiveness of a vehicle operator through challenges and corresponding responses. The system determines when to present a challenge to the vehicle operator based on internal and external factors. If necessary, the system will transition from an autonomous operation mode to a manual operation mode.

What is claimed is: 
     
         1 . A system configured to determine whether to transition vehicle control of a vehicle between an autonomous operation mode and another mode of operation, wherein the system is configured to couple with the vehicle that includes a user interface, wherein the user interface is configured to provide an interface between the system and a vehicle operator of the vehicle, the system comprising:
 one or more processors configured to:
 determine biometric information for the vehicle operator; 
 based on the biometric information, present a challenge to the vehicle operator to gauge responsiveness of the vehicle operator while the vehicle is in the autonomous operation mode, wherein the challenge corresponds to an expected response by the vehicle operator, and wherein continued control of the vehicle through the autonomous operation mode requires the vehicle operator to respond to the challenge in a manner that matches the expected response; 
 detect whether a response by the vehicle operator to the challenge matches the expected response, wherein detection is based on an interaction between the user interface and the vehicle operator; and 
 determine whether to effectuate continued operation in the autonomous operation mode of the vehicle or to effectuate a transition of vehicle control to another mode of operation, wherein the determination is based on the detection. 
   
     
     
         2 . The system of  claim 1 , wherein the user interface includes a microphone, and wherein the detection is based on audio information captured by the microphone. 
     
     
         3 . The system of  claim 1 , further comprising:
 control a frequency of presenting challenges to the vehicle operator based on the biometric information.   
     
     
         4 . The system of  claim 1 , wherein the detection is based on tactile feedback provided by the vehicle operator. 
     
     
         5 . The system of  claim 1 , wherein the detection is based on an amount of elapsed time between the challenge and the response. 
     
     
         6 . The system of  claim 1 , including the user interface, wherein the challenge is provided through the user interface. 
     
     
         7 . The system of  claim 1 , wherein the biometric information includes a direction of view for the vehicle operator. 
     
     
         8 . The system of  claim 1 , wherein the one or more processors are further configured to operate the vehicle in the autonomous operation mode. 
     
     
         9 . The system of  claim 1 , wherein the transition transitions the vehicle control to a manual mode of operation. 
     
     
         10 . The system of  claim 1 , wherein the transition instructs the vehicle control to park the vehicle. 
     
     
         11 . A method to transition vehicle control of a vehicle between an autonomous operation mode and another mode of operation, wherein the vehicle includes a user interface that provides an interface between the vehicle and a vehicle operator of the vehicle, the method comprising:
 determining biometric information for the vehicle operator;   based on the biometric information, presenting a challenge to the vehicle operator to gauge responsiveness of the vehicle operator while the vehicle is in the autonomous operation mode, wherein the challenge corresponds to an expected response by the vehicle operator, and wherein continued control of the vehicle through the autonomous operation mode requires the vehicle operator to respond to the challenge in a manner that matches the expected response;   detecting a response by the vehicle operator to the challenge matches the expected response, wherein detection is based on an interaction between the user interface and the vehicle operator; and   determining whether to effectuate continued operation in the autonomous operation mode of the vehicle or to effectuate a transition of vehicle control to another mode of operation, wherein the determination is based on the detection.   
     
     
         12 . The method of  claim 11 , wherein the user interface includes a microphone, and wherein the detection is based on audio information captured by the microphone. 
     
     
         13 . The method of  claim 11 , further comprising:
 controlling a frequency of presenting challenges to the vehicle operator based on the biometric information.   
     
     
         14 . The method of  claim 11 , wherein the detection is based on tactile feedback provided by the vehicle operator. 
     
     
         15 . The method of  claim 11 , wherein the detection is based on an amount of elapsed time between the challenge and the response. 
     
     
         16 . The method of  claim 11 , further comprising providing the user interface to the vehicle operator, wherein the challenge is provided through the user interface. 
     
     
         17 . The method of  claim 11 , wherein the biometric information includes a direction of view for the vehicle operator. 
     
     
         18 . The method of  claim 11 , further comprising operating the vehicle in the autonomous operation mode. 
     
     
         19 . The method of  claim 11 , wherein the transition transitions the vehicle control to a manual mode of operation. 
     
     
         20 . The method of  claim 11 , wherein the transition instructs the vehicle control to park the vehicle.