Invention Grant
- Patent Title: Road friction estimation techniques
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Application No.: US17022875Application Date: 2020-09-16
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Publication No.: US11639177B2Publication Date: 2023-05-02
- Inventor: Kun Zhang , Xiaoling Han , Weina Mao , Zehua Huang , Charles A. Price
- Applicant: TUSIMPLE, INC.
- Applicant Address: US CA San Diego
- Assignee: TUSIMPLE, INC.
- Current Assignee: TUSIMPLE, INC.
- Current Assignee Address: US CA San Diego
- Agency: Glenn Theodore Mathews Perkins Coie, LLP
- Agent Paul Liu
- Main IPC: B60W40/068
- IPC: B60W40/068 ; B60W10/18 ; B60W30/14

Abstract:
Techniques are described for estimating road friction between a road and tires of a vehicle. A method includes receiving, from a temperature sensor on a vehicle, a temperature value that indicates a temperature of an environment in which a vehicle is operated, determining a first range of friction values that quantify a friction between a road and tires of a vehicle based on a function of the temperature value and an extent of precipitation in a region that indicate a hazardous driving condition, obtaining, from the first range of friction values, a value that quantifies the friction between the road and the tires of the vehicle, where the value is obtained based on a driving related behavior of the vehicle, and causing the vehicle to operate on the road based on the value obtained from the first range of friction values.
Public/Granted literature
- US20210086777A1 ROAD FRICTION ESTIMATION TECHNIQUES Public/Granted day:2021-03-25
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