Patent · US Active

Road friction estimation

US11543343B2 · kind B2 · utility

2Cited by

14References

20Claims

0Family size

Assignee

VOLVO CAR CORPORATION · SE

Inventors

Derong Yang · Gothenburg, SE
Mats Jonasson · Partille, SE

Key dates

Filing date	Sep 5, 2019
Grant date	Jan 3, 2023
Priority date	—
Expiry date	Jun 23, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60W2720/28
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Techniques are described for dynamically selecting vehicles to perform road friction probing maneuvers and estimating road friction based on sensor data collected while a vehicle performs the road friction probing maneuvers. In one example, a computing system is configured to select, from a plurality of vehicles, based on an amount of elapsed time since each respective vehicle of the plurality of vehicles has performed a road friction probing maneuver, a vehicle to perform the road friction probing maneuver within a road segment of a roadway, and responsive to selecting the vehicle, output, to the vehicle, a command causing the vehicle to perform the road friction probing maneuver within the road segment.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.