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Queuing control system and vehicle

一种队列行驶、控制系统的技术，应用在交通控制系统、道路车辆的交通控制系统、控制装置等方向

Inactive Publication Date: 2011-12-14
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has the following problem: when the front vehicle is disturbed by road slope and wind, the error of inter-vehicle distance is propagated to the rear vehicle
[0004] Like this control system, a control method that theoretically does not cause inter-vehicle distance error propagation has been proposed in the past. The main reason such as delay, it is difficult to avoid the generation of error propagation

Method used

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  • Queuing control system and vehicle
  • Queuing control system and vehicle
  • Queuing control system and vehicle

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0023] figure 1 The illustrated platoon travel control system 1 is a system for controlling the respective travel states of a plurality of vehicles so that the plurality of vehicles travel in a platoon. Utilizing the platoon driving control system 1 can realize platoon driving in which a plurality of vehicles line up longitudinally in a row with a relatively narrow inter-vehicle distance. The platooning control system 1 can realize platooning composed of any number of vehicles, but here, as figure 2 As shown, with 5 vehicles C 1 、C 2 、C 3 、C 4 、C 5 A case where platooning is carried out will be described as an example.

[0024] Also, in the following explanations, where necessary, such as figure 2 As shown, use "a n "Represents the nth (n=1, 2,..., 5) vehicle C from the front of the queue n acceleration, with "V n ” means vehicle C n speed, use "u n ” means vehicle C n acceleration command value. In addition, with "L n-tgt ” means vehicle C n and vehicle C n...

no. 2 Embodiment approach

[0048] Next, a second embodiment of the platooning control system of the present invention will be described. The physical composition of the platoon driving control system 201 of the present embodiment is as follows: figure 1 As shown, it is the same as the platooning control system 1 , so redundant description thereof will be omitted.

[0049] As described above, in such platoon travel, the inter-vehicle error propagation ratio S depends on the acceleration frequency of the vehicle, and there is a vehicle acceleration frequency such that the inter-vehicle error propagation ratio S becomes S>1. For example, in image 3 In the example, 6·10 -2 Frequencies around Hz agree with this. In this way, the acceleration frequency of the vehicle such that the inter-vehicle error propagation ratio S becomes S>1 is called an "inappropriate frequency" hereinafter. As above, if the leading vehicle C 1Acceleration and deceleration at an inappropriate frequency will increase the vehicle-...

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PUM

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Abstract

A row-running control system is usable for controlling the relative relations between vehicles so that the vehicles run in a row. In the system, the target value of each relative relation between the vehicles longitudinally and continuously arranged in a row is determined based on a relative relation error propagation rate as the propagation rate of the error in the relative relation propagated to the rear vehicle while the vehicles run in a row.

Description

technical field [0001] The present invention relates to a platooning control system for controlling a relative relationship between vehicles so that a plurality of vehicles travel in a platoon, and a vehicle provided with such a system. Background technique [0002] In recent years, in order to improve traffic flow and improve fuel efficiency by reducing air resistance, attention has been paid to technologies that allow a plurality of vehicles to travel in a single platoon with a short inter-vehicle distance. Conventionally, as a technique for such platooning, there is known a system in which each subsequent vehicle in the platoon individually controls the inter-vehicle distance to the preceding vehicle. This method has the following problem: when the front vehicle is disturbed by road gradient and wind, the error of the inter-vehicle distance is propagated to the rear vehicle. To solve this problem, a system disclosed in JP-A-10-162282 has been proposed. In this system, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00B60W30/16G08G1/09
CPCB60W30/16B60W2550/408B60W2050/008G08G1/22B60W2556/65B60W2050/0075
Inventor 志田充央
Owner TOYOTA JIDOSHA KK
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