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Automobile driving characteristic evaluation and early warning method based on driving inclination

A driving feature and vehicle driving technology, which is applied in the field of intelligent vehicle interaction, can solve the problems of inability to extract the driver's significant driving characteristics, inability to evaluate, and low evaluation accuracy, and achieve the effects of rich content, avoiding driving games, and facilitating comparison

Active Publication Date: 2020-09-04
JILIN UNIV
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a vehicle driving characteristic evaluation and early warning method based on driving inclination to solve the problem of low evaluation accuracy, inability to extract driver's significant driving characteristics and inability to evaluate short-term, The problem of abnormal state characteristics

Method used

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  • Automobile driving characteristic evaluation and early warning method based on driving inclination
  • Automobile driving characteristic evaluation and early warning method based on driving inclination

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Embodiment Construction

[0048]A car driving characteristic evaluation and early warning method based on driving tendency, such as figure 1 As shown, it includes the following eleven steps from S1001 to S1011: wherein the English abbreviation of Hidden Markov Model is HMM, and HMM is used to represent Hidden Markov Model to explain the invention below,

[0049] Step S1001, collecting and storing vehicle driving data in real time;

[0050] Specifically, for the current mainstream traditional fuel vehicles, it is a mature and convenient way to obtain driving data through the CAN bus. For highly intelligent vehicles, vehicle driving data can be directly obtained through on-board automatic driving systems and other means. The acquired vehicle driving data include but not limited to: vehicle speed, engine speed, engine torque, throttle opening, rate of change of throttle opening, brake pressure, rate of change of brake pressure, steering angle, steering angular velocity, lateral acceleration, Turn signal...

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Abstract

The invention discloses an automobile driving characteristic evaluation and early warning method based on driving inclination, which belongs to the technical field of automobile intelligent interaction. The invention aims at collecting real-time operation data of an automobile as original data for evaluating automobile driving characteristics, extracting the original data according to scenes and exerting the characteristic advantage that the driving inclination evaluates specific scenes in real time. The data complexity can be reduced by using a time sequence dimension reduction algorithm, andmeanwhile, time sequence characteristics implicit in the data are reserved; operation fragments are counted to obtain a high-frequency operation fragment database, and detailed driving characteristicbehavior description can be carried out; an HMM model is used for inclination identification, and an identification result has high credibility; by further calculating the camber value, the operationcharacteristics of all parties of a driving game can be compared; early warning information is obtained through quantitative and qualitative evaluation results, and the content is convenient to compare; the data are continuously updated along with the operation of the automobile, the real-time performance of the evaluation result and the early warning information is ensured, and the practicability is very high.

Description

technical field [0001] The invention belongs to the technical field of automobile intelligent interaction, and in particular relates to a method for evaluating and early warning of automobile driving characteristics based on real-time driving tendency analysis. Background technique [0002] With the advent of the era of artificial intelligence, modern automotive intelligent technology has made great breakthroughs and developments, and the transportation system has begun to develop in the direction of networking and intelligence, and the amount of information in the traffic scene continues to increase. The driving characteristics of each vehicle form the unique label of the vehicle. On this basis, the intelligent early warning and operation regulation of other vehicles in the traffic network can be carried out by evaluating the driving tendency of the vehicle in the area, so as to avoid the occurrence of dangerous accidents. Accurate, rapid and real-time evaluation of vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/08G06F16/21G06N5/04
CPCG06N5/042G07C5/0808G07C5/0816G07C5/0841G06F16/21
Inventor 李世武赵士舒郭梦竹
Owner JILIN UNIV
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