DRIVER PERFORMANCE METRIC
First Claim
1. A method, using a computer, for assessing driver performance relative to a standard of performance, the method comprising:
- receiving, at a computer, a vehicle location state from a vehicle location sensor, the vehicle location state representing the geographical location of the vehicle;
identifying, with the computer, a road segment corresponding to the received vehicle location state, the identified road segment comprising a road segment type and one or more road segment parameters, the road segment type representing a category to which the road segment belongs, and the one or more road segment parameters comprising numeric values corresponding to geometric characteristics of the road segment;
receiving measurement data at the computer from one or more of;
a steering sensor, an accelerator sensor, a brake sensor, a clutch sensor, gearing sensor, a turn signal sensor, a hazard light sensor, a windshield-wiper sensor, an entertainment-system sensor, a parking-brake sensor, fuel-gauge sensor, throttle-angle sensor, an engine-speed sensor, a turbine-speed sensor, an engine-torque sensor, a driven-wheel speed sensor, a drive-wheel speed sensor, a fuel-flow sensor, fuel-injection system sensor, and an engine-piston firing period sensor, a vehicle position sensor, a vehicle orientation sensor, a vehicle speed sensor, a vehicle acceleration sensor, sensors for determining or more time derivatives of the vehicle'"'"'s orientation, a lane-position sensor, and a collision-risk sensor;
the measurement data indicative of one or more vehicle state parameters corresponding to a driver operating the vehicle on at least a portion of the identified road segment;
receiving, from an automated driving unit, reference data at the computer, the reference data comprising one or more vehicle state parameters corresponding to target values of the one or more vehicle state parameters comprising the received measurement data;
determining, at the computer, at least one driver performance level based at least in part on the received measurement data and the received reference data, the driver performance level indicative of an assessment of the driver operating the vehicle relative to the standard of performance for at least a portion of the identified road segment; and
invoking, with the computer, one or more alert events based upon the determined driver performance levels.
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Abstract
Systems and methods for quantifiable assessment of vehicle driver performance based upon objective standards are disclosed. The physical and/or control states of a vehicle are monitored by sensors during a driving trip. Measurement data, optionally comprising a measurement signal, is composed from parameters selected from the measured physical and/or control states. The measurement data is then compared to reference data, optionally comprising a reference signal, comprising the same or similar physical and control state parameters, for the same or analogous driving trip or portion thereof, including discrete driving tasks, as determined by one or more of: a known driver of specific attributes, a population average, or an autonomous driving algorithm. A driver performance level may be determined as one or more characteristic metrics of a driving task, according to one or more path metrics of a driving task, or as a signal distance metric between the reference and measurement signals.
64 Citations
17 Claims
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1. A method, using a computer, for assessing driver performance relative to a standard of performance, the method comprising:
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receiving, at a computer, a vehicle location state from a vehicle location sensor, the vehicle location state representing the geographical location of the vehicle; identifying, with the computer, a road segment corresponding to the received vehicle location state, the identified road segment comprising a road segment type and one or more road segment parameters, the road segment type representing a category to which the road segment belongs, and the one or more road segment parameters comprising numeric values corresponding to geometric characteristics of the road segment; receiving measurement data at the computer from one or more of;
a steering sensor, an accelerator sensor, a brake sensor, a clutch sensor, gearing sensor, a turn signal sensor, a hazard light sensor, a windshield-wiper sensor, an entertainment-system sensor, a parking-brake sensor, fuel-gauge sensor, throttle-angle sensor, an engine-speed sensor, a turbine-speed sensor, an engine-torque sensor, a driven-wheel speed sensor, a drive-wheel speed sensor, a fuel-flow sensor, fuel-injection system sensor, and an engine-piston firing period sensor, a vehicle position sensor, a vehicle orientation sensor, a vehicle speed sensor, a vehicle acceleration sensor, sensors for determining or more time derivatives of the vehicle'"'"'s orientation, a lane-position sensor, and a collision-risk sensor;
the measurement data indicative of one or more vehicle state parameters corresponding to a driver operating the vehicle on at least a portion of the identified road segment;receiving, from an automated driving unit, reference data at the computer, the reference data comprising one or more vehicle state parameters corresponding to target values of the one or more vehicle state parameters comprising the received measurement data; determining, at the computer, at least one driver performance level based at least in part on the received measurement data and the received reference data, the driver performance level indicative of an assessment of the driver operating the vehicle relative to the standard of performance for at least a portion of the identified road segment; and invoking, with the computer, one or more alert events based upon the determined driver performance levels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method, using a computer, for assessing driver performance relative to a standard of performance, the method comprising:
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receiving, at a computer, a vehicle location state from a vehicle location sensor, the vehicle location state representing the geographical location of the vehicle; identifying, with the computer, a road segment corresponding to the received vehicle location state, the identified road segment comprising a road segment type and one or more road segment characteristics, the road segment type representing a category to which the road segment belongs, and the one or more road segment characteristics identifying parameters of the road segment specific to the road segment type; receiving, from at least one vehicle state sensor, measurement data at the computer, the measurement data indicative of one or more vehicle state parameters corresponding to a driver operating the vehicle on at least a portion of the identified road segment; receiving, from a driver population module, driver-population data comprising vehicle state data corresponding to how one or more driver drivers navigated the identified road segment; creating, with the computer, reference data based at least in part on the received driver-population data, the reference data indicative of one or more vehicle state parameters corresponding to a standard of performance for the vehicle on at least a portion of the identified road segment; determining, at the computer, at least one driver performance level based at least in part on the received measurement data and the received reference data, the driver performance level indicative of an assessment of the driver operating the vehicle relative to the standard of performance for at least a portion of the identified road segment; and invoking, with the computer, one or more alert events based upon the determined driver performance levels. - View Dependent Claims (16, 17)
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Specification