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Vehicle following model stability control method considering driver perception error

A technology for stability control and vehicle following, which is applied in the field of traffic control and can solve the problem of no driver being given.

Active Publication Date: 2020-04-10
BEIHANG UNIV +1
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AI Technical Summary

Problems solved by technology

Although scholars have considered the physiological and psychological characteristics of different drivers and the traffic environment, established corresponding car-following models, and designed corresponding feedback control methods to enhance the stability of the model, but in the process of relevant literature retrieval It is found that the existing technology does not provide a vehicle following model that takes into account the driver's perception error and based on the confidence of the perceived speed and the distance between the heads of the vehicle, and at the same time designs a corresponding feedback control method to enhance the stability of the model

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  • Vehicle following model stability control method considering driver perception error
  • Vehicle following model stability control method considering driver perception error
  • Vehicle following model stability control method considering driver perception error

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] Such as figure 1 , figure 2 As shown, the present invention sets the traffic scene that needs to be simulated through the motion-controllable guiding vehicle, and selects the value of the parameters according to the set traffic scene, including the driver's reaction time τ, acceleration sensitivity coefficient k, λ, front The confidence levels of the speed of the vehicle and the distance between the heads are α and β respectively, and the standard deviations of the perception errors of the speed of the preceding vehicle and the distance between the heads are ζ(v n-1 )with The adjustable gain parameter γ of the feedback controller, the response delay time lag τ of the feedback controller * .

[0034] The present invention first obtains the initial state of all vehicles. The simulation simulates the movement state of the vehicle platoon when t...

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Abstract

The invention discloses a vehicle following model stability control method considering driver perception error, which is used for solving the influence of the driver random perception error on the traffic flow stability. According to the method, under the condition of considering that a driver has an information perception error for the motion state of a preceding vehicle in the vehicle followingprocess, vehicle head distance and preceding vehicle speed confidence level parameters are introduced, a vehicle following model considering the driver perception error is established, and on the basis, a feedback control method is designed to enhance the stability of the model. Compared with a model which does not consider a feedback control method, the provided feedback control method can effectively improve the stability of the queue, and technical support is provided for queue stability control methods in the fields of traffic management and control, vehicle intelligent control and the like.

Description

technical field [0001] The invention relates to the field of traffic control methods, in particular to a vehicle-following model stability control method considering driver perception errors. Background technique [0002] The problem of traffic congestion in today's society has increasingly become the focus of attention. As a macroscopic model, the traffic flow model can effectively describe the mathematical model of traffic flow, and the car-following model can further reveal the mechanism of traffic congestion and describe the driving behavior characteristics of a single vehicle. Therefore, in recent years, scholars have proposed a variety of car-following models to analyze the impact of driving behavior characteristics on traffic flow stability. [0003] In 1953, Pipes proposed a groundbreaking vehicle-following model. Subsequently, on the basis of the stimulus-response conceptual model, Chandler et al. proposed the first linear car-following model with only relative spe...

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Application Information

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IPC IPC(8): B60W30/02B60W30/165
CPCB60W30/02B60W30/165
Inventor 张俊杰于海洋任毅龙杨灿冀浩杰
Owner BEIHANG UNIV
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