Handover procedure for driver of autonomous vehicle
First Claim
1. A vehicle control system for a vehicle that is operable to control the vehicle in an autonomous or semi-autonomous mode, said vehicle control system comprising:
- a plurality of sensors disposed at the vehicle and having fields of sensing exterior of the vehicle;
a processor operable to process data captured by said sensors;
wherein, when said vehicle control system is operating in the autonomous or semi-autonomous mode and responsive to a determination of a triggering event that requires the vehicle control system to hand over control of the vehicle to a driver of the vehicle before the vehicle encounters an event point, said vehicle control system determines (i) a total action time until the vehicle encounters the event point, (ii) an estimated time for the driver to take over control of the vehicle and (iii) an estimated handling time for the vehicle to be controlled before the vehicle encounters the event point; and
wherein, responsive to the determined total action time, estimated driver take over time and estimated handling time, said vehicle control system one of (i) allows the driver to take over control of the vehicle and (ii) controls the vehicle to slow down and stop the vehicle before the event point.
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Abstract
A control system that is operable to control a vehicle in an autonomous or semi-autonomous mode includes a processor that processes data captured by a plurality of exterior sensing sensors. When the control system is operating in the autonomous or semi-autonomous mode and responsive to a determination of an upcoming event that requires the system to hand over control of the vehicle to a driver before the vehicle encounters the event, the control determines (i) a total action time until the vehicle encounters the event, (ii) an estimated time for the driver to take over control and (iii) an estimated handling time for the vehicle to be controlled before the vehicle encounters the event. Responsive to the determinations, the control system (i) allows the driver to take over control of the vehicle or (ii) controls the vehicle to slow down and stop the vehicle before the vehicle encounters the event.
55 Citations
20 Claims
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1. A vehicle control system for a vehicle that is operable to control the vehicle in an autonomous or semi-autonomous mode, said vehicle control system comprising:
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a plurality of sensors disposed at the vehicle and having fields of sensing exterior of the vehicle; a processor operable to process data captured by said sensors; wherein, when said vehicle control system is operating in the autonomous or semi-autonomous mode and responsive to a determination of a triggering event that requires the vehicle control system to hand over control of the vehicle to a driver of the vehicle before the vehicle encounters an event point, said vehicle control system determines (i) a total action time until the vehicle encounters the event point, (ii) an estimated time for the driver to take over control of the vehicle and (iii) an estimated handling time for the vehicle to be controlled before the vehicle encounters the event point; and wherein, responsive to the determined total action time, estimated driver take over time and estimated handling time, said vehicle control system one of (i) allows the driver to take over control of the vehicle and (ii) controls the vehicle to slow down and stop the vehicle before the event point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vehicle control system for a vehicle that is operable to control the vehicle in an autonomous or semi-autonomous mode, said vehicle control system comprising:
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a plurality of sensors disposed at the vehicle and having fields of sensing exterior of the vehicle, wherein said plurality of sensors comprises a plurality of cameras disposed at the vehicle and a plurality of radar sensors disposed at the vehicle; a processor operable to process data captured by said sensors; wherein said vehicle control system determines an upcoming event that cannot be handled by said vehicle control system when said vehicle control system is operating in the autonomous or semi-autonomous mode; wherein, when said vehicle control system is operating in the autonomous or semi-autonomous mode and responsive to a determination of the upcoming event that requires the vehicle control system to hand over control of the vehicle to a driver of the vehicle before the vehicle encounters the event, said control determines (i) a total action time until the vehicle encounters the event, (ii) an estimated time for the driver to take over control of the vehicle and (iii) an estimated handling time for the vehicle to be controlled before the vehicle encounters the event; and wherein, responsive to the determined total action time, estimated driver take over time and estimated handling time, said vehicle control system one of (i) allows the driver to take over control of the vehicle and (ii) controls the vehicle to slow down and stop the vehicle before the vehicle encounters the event. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A vehicle control system for a vehicle that is operable to control the vehicle in an autonomous or semi-autonomous mode, said vehicle control system comprising:
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a plurality of sensors disposed at the vehicle and having fields of sensing exterior of the vehicle, wherein said plurality of sensors comprises a plurality of cameras disposed at the vehicle and a plurality of radar sensors disposed at the vehicle; a processor operable to process data captured by said sensors; wherein said vehicle control system determines an upcoming event that cannot be handled by said vehicle control system when said vehicle control system is operating in the autonomous or semi-autonomous mode; wherein, when said vehicle control system is operating in the autonomous or semi-autonomous mode and responsive to a determination of the upcoming event that requires the vehicle control system to hand over control of the vehicle to a driver of the vehicle before the vehicle encounters the event, said control determines (i) a total action time until the vehicle encounters the event, (ii) an estimated time for the driver to take over control of the vehicle and (iii) an estimated handling time for the vehicle to be controlled before the vehicle encounters the event; wherein, responsive to the determined total action time, estimated driver take over time and estimated handling time, said vehicle control system one of (i) allows the driver to take over control of the vehicle and (ii) controls the vehicle to slow down and stop the vehicle before the vehicle encounters the event; wherein, responsive to the estimated driver takeover time being greater than the difference between the total action time and the estimated handling time, said vehicle control system controls the vehicle to slow down and stop the vehicle; wherein, responsive to the estimated driver takeover time being less than the difference between the total action time and the estimated handling time, said vehicle control system allows the driver to take over control of the vehicle; and wherein, responsive to said control allowing the driver to take over control of the vehicle and responsive to the driver not taking over control of the vehicle by the difference between the total action time and the estimated handling time, said vehicle control system controls the vehicle to slow down and stop the vehicle. - View Dependent Claims (20)
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Specification