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A low-cost pavement adhesion coefficient determination method and system

A technology of road adhesion coefficient and adhesion coefficient, applied in the automotive field, can solve the problems of high price of sensors and inability to apply to mass-produced vehicles.

Active Publication Date: 2022-07-22
HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of this method is that it is direct and easy to operate. The disadvantage is that the sensor is expensive and cannot be used in mass-produced vehicles.

Method used

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  • A low-cost pavement adhesion coefficient determination method and system
  • A low-cost pavement adhesion coefficient determination method and system
  • A low-cost pavement adhesion coefficient determination method and system

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Embodiment Construction

[0075] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

[0076] The embodiment of the present invention provides a low-cost method for determining the road adhesion coefficient, such as figure 1 shown, including:

[0077] Step S1: obtaining the positioning information of the first vehicle through the vehicle-mounted positioning module;

[0078] Step S2: obtaining a road adhesion coefficient map through a big data platform;

[0079] Step S3: Based on the positioning information and the road adhesion coefficient map, determine the first road surface adhesion coefficient of the road where the current first vehicle is located.

[0080] The working principle and beneficial effects of the above technical solutions are as follows:

[0081...

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Abstract

The present invention provides a low-cost road adhesion coefficient determination method and system, wherein the method includes: obtaining positioning information of a first vehicle through a vehicle-mounted positioning module; obtaining a road adhesion coefficient map through a big data platform; based on the positioning information and the road adhesion coefficient A map is used to determine the first road surface adhesion coefficient of the road where the current first vehicle is located. The low-cost pavement adhesion coefficient determination method of the present invention realizes fast and low-cost determination of the pavement adhesion coefficient by obtaining the road adhesion coefficient map from the big data platform, and then determining the pavement adhesion coefficient of the road on which the vehicle travels.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a low-cost road adhesion coefficient determination method and system. Background technique [0002] At present, in the process of vehicle driving, except for air resistance, most of the external forces acting on the vehicle come from the contact force between the tire and the ground. Therefore, the contact between the tire and the road surface affects the safety and power of the vehicle. Performance plays a decisive role. The road adhesion coefficient represents the contact between the tire and the road surface, and also limits the maximum road force that the tire can obtain. Therefore, the road adhesion coefficient is a key parameter affecting the performance of active safety systems such as active collision avoidance. [0003] At present, there are mainly cause-based methods for the detection of the adhesion coefficient, which identify the specific adhesion coefficient acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/02
Inventor 刘玮张庆杰王啸威于水胜
Owner HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD