Systems and methods for scheduling driver interface tasks based on driver workload
First Claim
Patent Images
1. A method for managing a plurality of driver interface tasks comprising:
- categorizing a driver workload into a plurality of workload classes representing differing levels of driver workload;
for a specified time period, determining a relative frequency with which the driver workload falls within each of the classes including determining, for each of the classes, a long term driver workload based on the driver workload from a current time period and the driver workload from a past time period, and a scale factor that determines the specified time period;
scheduling the tasks for execution based on the relative frequencies; and
executing the tasks according to the schedule.
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Abstract
A vehicle'"'"'s dynamic handling state, driver inputs to the vehicle, etc. may be examined to determine one or more measures of driver workload. Driver interface tasks may then be delayed and/or prevented from executing based on the driver workload so as to not increase the driver workload. Alternatively, driver interface tasks may be schedule for execution based on the driver workload and caused to execute according to the schedule, for example, to minimize the impact the executing driver interface tasks have on driver workload.
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Citations
15 Claims
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1. A method for managing a plurality of driver interface tasks comprising:
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categorizing a driver workload into a plurality of workload classes representing differing levels of driver workload; for a specified time period, determining a relative frequency with which the driver workload falls within each of the classes including determining, for each of the classes, a long term driver workload based on the driver workload from a current time period and the driver workload from a past time period, and a scale factor that determines the specified time period; scheduling the tasks for execution based on the relative frequencies; and executing the tasks according to the schedule. - View Dependent Claims (2, 3, 4)
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5. A vehicle comprising:
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an interface; and a processor configured to (i) categorize a driver workload into a plurality of classes representing differing levels of workload, (ii) for a specified time period, determine a relative frequency with which the driver workload falls within each of the classes, (iii) receive a plurality of driver interface tasks to be executed via the interface, (iv) schedule the tasks for execution based on the relative frequencies, and (v) execute the tasks according to the schedule. - View Dependent Claims (6, 7, 8, 9)
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10. A vehicle comprising:
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a plurality of driver-vehicle interfaces; and at least one processor configured to (i) determine a plurality of scaled parameters each representing a driver workload and each based on one of (a) a level of interaction between a driver and one or more of the driver-vehicle interfaces, (b) a margin between the vehicle'"'"'s current handling condition and limit handling condition, (c) a variability of at least one driver control action input, or (d) a headway between the vehicle and another object, (ii) receive a plurality of driver interface tasks to be executed, and (iii) selectively delay or prevent at least some of the plurality of driver interface tasks from being executed based on a maximum or aggregation of the plurality of scaled parameters. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification