Road surface friction coefficient determination method and device based on Internet of Vehicles and electronic equipment
A technology of road friction coefficient and determination method, applied in the field of Internet of Vehicles, can solve problems such as limited applicable working conditions
Active Publication Date: 2021-05-11
HEBEI PROVINCIAL COMM PLANNING & DESIGN INST +2
View PDF12 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to ensure the estimation accuracy under different vehicle conditions, it is necessary to overcome the influence of tire wear on the estimation. However, the existing tire model or slip rate-adhesion coefficient prior data is obtained from theory or special experiments, and it is difficult to provide a wide range of conditions for the estimation method of road friction coefficient. Provides sufficient correction factors for applications under
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments of this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0025] As mentioned in the background art, timely estimation of the road surface friction coefficient of a vehicle is of great significance for vehicle driving assistance and traffic management to ensure traffic safety, and to ensure the estimation accuracy under different vehicle conditions, it is necessary to overcome the influence of tire wear on th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to the technical field of Internet of Vehicles, in particular to a road surface friction coefficient determination method and device based on Internet of Vehicles and electronic equipment. The method provided by the invention comprises the following steps: acquiring current driving environment data of a target vehicle; searching a road surface friction coefficient estimation value matched with the current driving environment data from a pre-established road surface friction coefficient map according to the current driving environment data; determining the searched road surface friction coefficient estimated value as the road surface friction coefficient of the target vehicle, wherein the road surface friction coefficient atlas is established on the basis of road surface friction coefficient estimation values, obtained by the Internet of Vehicles, of all vehicles in different driving environments. According to the scheme, the influence of tire wear on the road surface friction coefficient estimation value can be overcome, so that the adaptability of the road surface friction coefficient estimation value to the driving working condition of the vehicle is improved, and a more accurate friction coefficient is provided for the vehicle.
Description
technical field [0001] The present application relates to the technical field of the Internet of Vehicles, in particular to a method, device and electronic equipment for determining the friction coefficient of a road surface based on the Internet of Vehicles. Background technique [0002] During the driving process of the vehicle, for different road surface areas, road conditions (such as asphalt road, gravel road, dry road, wet road, ice and snow road, etc.), driving conditions, environmental conditions (such as the temperature and humidity of the area where the vehicle is located) and other external environments), vehicles have different road surface friction coefficients, and these different road surface friction coefficients will affect tire grip and vehicle stability. Therefore, timely estimation of road surface friction coefficient is of great significance for vehicle driving assistance and traffic management to ensure traffic safety. [0003] In the prior art, vehicl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/36G06F17/17
CPCG06F16/367G06F17/17
Inventor 何勇海雷伟李春杰宣智渊宦涣焦彦利杨轩常雪阳赵清杰解振龙
Owner HEBEI PROVINCIAL COMM PLANNING & DESIGN INST