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Method for determining a dynamic vehicle distance between a following vehicle and a preceding vehicle of a platoon

A technology of rear and front vehicles, applied in the field of dynamic vehicle spacing, can solve the problems that the vehicle spacing is not optimally adjusted and the efficiency is not improved to the best, and achieve the effect of saving fuel

Inactive Publication Date: 2019-04-26
WABCO EURO BVBA SPRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It may thus be found that the actual distance between vehicles is not adjusted optimally because, for example, the minimum required braking performance results in a distance between vehicles which may not be exceeded based on actual values.
Therefore, although the safety is improved, the efficiency has not been improved to the best

Method used

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  • Method for determining a dynamic vehicle distance between a following vehicle and a preceding vehicle of a platoon
  • Method for determining a dynamic vehicle distance between a following vehicle and a preceding vehicle of a platoon
  • Method for determining a dynamic vehicle distance between a following vehicle and a preceding vehicle of a platoon

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Embodiment Construction

[0030] according to figure 1 Shown is a train 100 in which a plurality of vehicles 10 , 20 , 30 , 40 , preferably private cars and / or commercial vehicles, in particular tractor trains or trucks with trailers, travel one behind the other.

[0031] The vehicle 20, 30, 40 is the following vehicle FF and the vehicle 10, 20, 30 is the leading vehicle VF, wherein the following vehicle FF follows figure 2 The preceding vehicle VF is followed by a specific dynamic vehicle distance Adyn, wherein the dynamic vehicle distance Adyn specifies the spatial distance. The dynamic vehicle distance Adyn between the following vehicle FF and the corresponding leading vehicle VF can be changed, since the minimum safe vehicle distance can be adjusted dynamically relative to the leading vehicle VF, that is to say, with the relevant vehicles 10, 20, The corresponding driving situation of 30, 40 is adapted.

[0032] For this purpose, the dynamic vehicle distance Adyn is selected in such a way that a c...

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Abstract

The invention relates to a method for determining a dynamic vehicle distance (Adyn) between a following vehicle (FF) and a preceding vehicle (VF) of a platoon, wherein a V2V signal (S1) can be wirelessly transferred between the following vehicle (FF) and the preceding vehicle (VF), comprising at least the following steps: determining a current maximum following-vehicle deceleration (zMax_FF) of the following vehicle (FF); determining a current transfer time for transferring to the following vehicle (FF) the information that the preceding vehicle (VF) has initiated an emergency braking operation (N); determining a current maximum preceding-vehicle deceleration (zMax_VF) of the preceding vehicle (VF); and determining the dynamic vehicle distance (Adyn) from a transfer distance (s) and from abraking distance difference (sB), wherein the transfer distance (s) indicates the distance traveled by the following vehicle (FF) between the initiation of an emergency braking operation (N) by the preceding vehicle (VF) and the initiation of an emergency braking operation (N) by the following vehicle (FF), wherein the transfer distance (s) depends on the current transfer time, and wherein the braking distance difference (sB) indicates a difference between a preceding-vehicle braking distance (w_VF) defined by the maximum preceding-vehicle deceleration (zMax_W) and a following-vehicle brakingdistance (w_FF) defined by the maximum following-vehicle deceleration (zMax_FF).

Description

technical field [0001] The invention relates to a method for determining the dynamic vehicle distance between a vehicle behind and a vehicle ahead in a train. Background technique [0002] In trains or convoys of several vehicles traveling in succession, preferably commercial vehicles, the distance between vehicles is usually adjusted stably based on usual and stably pre-set values ​​for braking performance and transmission time of information. This should ensure that, in the worst-case scenario, emergency braking by a vehicle in front does not lead to a collision with a vehicle immediately behind. [0003] Here, a usual or minimum required maximum front vehicle deceleration is assumed as a stably adjusted value for the vehicle in front, and a usual or worst possible or minimum required maximum rear vehicle deceleration is assumed for the rear vehicle and Assume a usual transmission time for communicating the information that the vehicle ahead has initiated emergency brakin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00B60W30/165G05D1/02G08G1/16
CPCG05D1/0293G08G1/162G08G1/22B60W30/16B60W2520/105B60W30/18109B60W2754/10B60W2554/80B60W2556/65B60W30/165B60W2554/804B60W2554/802B60W2754/30H04W4/46
Inventor 尼克拉斯·布罗尔托马斯·迪克曼托马斯·沃尔夫
Owner WABCO EURO BVBA SPRL
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