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Acceleration control method of vehicle follow gallop sports

An acceleration control, vehicle following technology, applied in the direction of speed/acceleration control, non-electric variable control, adaptive control, etc., can solve problems such as vehicle speed shock, and achieve the effect of easy understanding and processing

Inactive Publication Date: 2006-01-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When describing the same traffic situation, MOV can obtain the actual driver reaction time value (about 1s), but there will still be very serious speed oscillations.

Method used

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  • Acceleration control method of vehicle follow gallop sports
  • Acceleration control method of vehicle follow gallop sports
  • Acceleration control method of vehicle follow gallop sports

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: A slow vehicle appears in front of the queue of vehicles traveling at a constant speed.

[0031] (1) Traffic situation setting: select a queue of vehicles traveling at a constant speed, and the distance between vehicles is h 0 =25m; when the zero time (initial time) is set, a slow car appears at a distance of 25m ahead of the vehicle queue, and the slow car will always maintain a relatively low-speed uniform motion state. The total number of vehicles is N=500, the number of slow vehicles is 1, and the vehicles are numbered sequentially according to the driving direction.

[0032] (2) Select parameter value: According to the above setting, select α=1 / 40s -1 , β=3.5s -1 , τ=1s, τ 1 =0.1s and V(Δx n (t-τ))=16.8(tanh(0.0860(Δxn (t-τ)-25))+0.913)

[0033] G ( Δ v n ( t - τ 1 ...

Embodiment 2

[0038] Example 2: The movement of the queue of vehicles waiting in front of the traffic light after the red light turns green

[0039] (1) Traffic situation setting: select a queue of waiting vehicles, and the distance between vehicles is h 0 =7m; when setting the zero moment (initial moment), the interfering vehicle parked at a distance of 7m in front of the vehicle queue with an acceleration of 5m / s 2 Accelerate to 15m / s all the time, then keep moving at a constant speed, and the vehicle queue starts at the same time. The total number of vehicles is N=500, and the number of the interfering vehicle is also 1, and the vehicles are numbered sequentially according to the driving direction.

[0040] (2) Select parameter value: According to the above setting, select α=1 / 10s -1 , β=1.5s -1 , τ=1s, τ 1 =0.1s and V(Δx n (t-τ))=16.8(tanh(0.0860(Δx n (t-τ)-25))+0.913)

[0041] G ( Δ v n ...

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PUM

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Abstract

The present invention relates to an acceleration control method for car following movement in the field of vehicle engineering technology. Said method includes the following steps: (1). Setting traffic condition; (2). Selecting parameter value; (3) obtaining initial state of all the vehicles; and (4). Observing running state of vehicle queue when t is greater than O. said invention is mainly aimed at preventing traffic accident.

Description

technical field [0001] The invention relates to a method for controlling the car-following motion of a vehicle used in the technical field of vehicle engineering, in particular to an acceleration control method for the car-following motion of the vehicle. Background technique [0002] For a long time, car-following research has focused on the driving behavior of individual vehicles in the vehicle platoon. Usually, when a driver finds that the vehicle in front of him is faster than him, he always wants to speed up his own speed, and the greater the distance between the two vehicles, the greater the adjustment to the acceleration (or deceleration); otherwise, when the driver finds When the speed of the vehicle in front is slower than him, it will slow down to avoid a collision. At this time, the smaller the distance between the two vehicles, the greater the adjustment to the acceleration (or deceleration). Assuming that vehicles with the same attributes drive in a line on a c...

Claims

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Application Information

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IPC IPC(8): G05B13/00G05B13/04G05D13/00
Inventor 李莉施鹏飞
Owner SHANGHAI JIAO TONG UNIV
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