Automotive Drone Deployment System
US-2016016663-A1 · Jan 21, 2016 · US
Motion planning for a vehicle using traction information
US2017166216A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017166216-A1 |
| Application number | US-201615376583-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 12, 2016 |
| Priority date | Dec 10, 2015 |
| Publication date | Jun 15, 2017 |
| Grant date | — |
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- Title
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Abstract
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A vehicle determines an expected traction value for a region of a road segment on which the vehicle is approaching. A set of motion parameters may be determined based on the expected traction value. A vehicle control operation can be implemented based on the determined set of motion parameters.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for operating an autonomous vehicle, the method comprising: determining an expected traction value for a region of a road segment on which the vehicle is approaching; determining a set of motion parameters based on the expected traction value; and implementing a vehicle control operation based on the determined set of motion parameters. 2 . The method of claim 1 , wherein determining the expected traction value includes determining a reflectance characteristic of light from a surface of the road segment. 3 . The method of claim 2 , wherein determining the reflectance characteristic of light includes using a passive camera to capture an image of the surface of the road segment. 4 . The method of claim 3 , wherein determining the reflectance characteristic of light includes detecting a white characteristic for snow. 5 . The method of claim 2 , wherein determining the reflectance characteristic of light includes using an active light source to direct light onto the surface of the road segment to create a reflected signal. 6 . The method of claim 5 , wherein determining the reflectance characteristic includes detecting a variation of at least one of a power or intensity from a reflection from the road segment of the directed light. 7 . The method of claim 6 , wherein determining the expected traction value includes: detecting precipitation on the road segment; classifying the precipitation based on the detected variation. 8 . The method of claim 7 , wherein the traction value is based on a classification of the precipitation. 9 . The method of claim 1 , wherein determining the expected traction value includes storing a set of traction values that are expected for each of a plurality of locations, including for one or more locations in the region of the road segment. 10 . The method of claim 9 , further comprising receiving the set of traction values from a network service when the vehicle is on a trip that is to go through the road segment. 11 . The method of claim 1 , wherein determining the set of motion parameters includes determining a forward or reverse acceleration parameter for the vehicle in the region of the road segment. 12 . The method of claim 1 , wherein determining the set of motion parameters includes determining a steering parameter for the vehicle in the region of the road segment. 13 . The method of claim 1 , wherein determining the set of motion parameters includes determining an immediate trajectory of the vehicle with respect to the region of the road segment. 14 . The method of claim 1 , wherein determining the set of motion parameters includes selecting one or more motion parameters based at least in part on the expected traction value. 15 . The method of claim 1 , wherein determining the set of motion parameters includes determining a braking distance for the vehicle through traffic of the road segment.
Assignees
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Classifications
Preventing, or responsive to skidding of wheels · CPC title
Input parameters relating to infrastructure · CPC title
Coefficient of friction · CPC title
- B60W40/068Primary
Road friction coefficient · CPC title
Predicting future conditions · CPC title
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Frequently asked questions
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- What does patent US2017166216A1 cover?
- A vehicle determines an expected traction value for a region of a road segment on which the vehicle is approaching. A set of motion parameters may be determined based on the expected traction value. A vehicle control operation can be implemented based on the determined set of motion parameters.
- Who is the assignee on this patent?
- Uber Technologies Inc
- What technology area does this patent fall under?
- Primary CPC classification B60W40/068. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 15 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).