Stochastic range
First Claim
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1. A system comprising:
- a processor configured toidentify an expected time-of-arrival distribution to a waypoint along a vehicle route,utilize map data to determine alternate routes branching from the route,determine energy usage along the route according to a plurality of arrival timing states of a traffic control located at the waypoint given the expected time-of-arrival distribution,determine energy usage along the alternate routes,form range contours by connecting points along the route and the alternate routing having substantially equal likelihoods of running out of fuel, the range contours including a first range contour indicating a first likelihood of running out of fuel and a second range contour indicating a second likelihood of running out of fuel greater than the first likelihood, anddisplay a map including the vehicle route and the range contours indicative of alternative results of arriving at the waypoint at the plurality of arrival states.
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Abstract
A system may identify an expected time-of-arrival distribution to a waypoint along a vehicle route, determine energy usage along the route according to a plurality of arrival timing states of a traffic control located at the waypoint given the expected time-of-arrival distribution, and display a map including the vehicle route and range contours indicative of alternative results of arriving at the waypoint at the plurality of arrival states. The system may also determine energy usage along the vehicle route and update an expected available range of the vehicle along the route.
12 Citations
20 Claims
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1. A system comprising:
a processor configured to identify an expected time-of-arrival distribution to a waypoint along a vehicle route, utilize map data to determine alternate routes branching from the route, determine energy usage along the route according to a plurality of arrival timing states of a traffic control located at the waypoint given the expected time-of-arrival distribution, determine energy usage along the alternate routes, form range contours by connecting points along the route and the alternate routing having substantially equal likelihoods of running out of fuel, the range contours including a first range contour indicating a first likelihood of running out of fuel and a second range contour indicating a second likelihood of running out of fuel greater than the first likelihood, and display a map including the vehicle route and the range contours indicative of alternative results of arriving at the waypoint at the plurality of arrival states. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
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10. A system comprising:
a processor configured to compute a probability distribution of a plurality of arrival timing states of a traffic control located at a waypoint along a vehicle route based on an expected time-of-arrival to the waypoint, utilize map data to determine alternate routes branching from the vehicle route at the waypoint, determine energy usage along the vehicle route according to the probability distribution, expected propulsion energy usage, and expected accessory energy usage of the vehicle, determine energy usage along the alternate routes, form range contours by connecting points along the route and the alternate routing having substantially equal likelihoods of running out of fuel, the range contours including a first range contour indicating a first likelihood of running out of fuel and a second range contour indicating a second likelihood of running out of fuel greater than the first likelihood, and update an expected available range of the vehicle along the route using the determined energy usage along the vehicle route. - View Dependent Claims (11, 12, 13, 19)
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14. A non-transitory computer-readable medium embodying instructions that, when executed by a processor, are configured to cause the processor to:
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compute a probability distribution of a plurality of arrival timing states of a traffic control located at a waypoint along a vehicle route based on an expected time-of-arrival to the waypoint, utilize map data to determine alternate routes branching from the vehicle route at the waypoint, determine energy usage along the vehicle route according to the probability distribution, expected propulsion energy usage, and expected accessory energy usage of the vehicle, determine energy usage along the alternate routes, form range contours by connecting points along the route and the alternate routing having substantially equal likelihoods of running out of fuel, the range contours including a first range contour indicating a first likelihood of running out of fuel and a second range contour indicating a second likelihood of running out of fuel greater than the first likelihood, and at least one of (i) update an expected available range of the vehicle along the route and (ii) display a map including the vehicle route and the range contours indicative of alternative results of arriving at the waypoint at the plurality of arrival states. - View Dependent Claims (15, 16, 17, 20)
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Specification