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Automatic vehicle lane changing method

A lane-changing and vehicle technology, applied in the direction of control devices, etc., can solve the problems of failure to mitigate and eliminate collision risks, no coordinated control of rear vehicles, user losses, etc., to improve driving experience, reduce risks, and increase fault tolerance. Effect

Active Publication Date: 2019-09-17
ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the current vehicle changes lanes and the vehicle behind fails to respond in time or makes a wrong response, which may lead to accidents and bring great losses to users.
[0003] At present, vehicles on the market mainly rely on the driver's naked eyes to identify the visibility and then perform corresponding operations; although there are some technologies that can be applied to devices or systems for automatic lane change of vehicles, most of them are limited to control from the perspective of the vehicle alone. There is no coordinated control of the rear vehicle in the lane change scenario, so it has no effect on mitigating and eliminating the risk of such a collision

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0089] Example 1: When the system recommended mode is selected as the lane change mode, and the lane change type is emergency lane change, the weight factor (6) target vehicle comfort is introduced at this time, and the preset lane change threshold is set to 5:

[0090] Table 1

[0091]

[0092] Wherein, the target vehicle 1, the target vehicle 2 and the target vehicle 3 are the vehicles detected by the own vehicle and located on the target lane within the preset area of ​​the own vehicle. It can be seen from the above table that the sum of the weight coefficients of each weight element is 100%. Specifically, target vehicle 1 and target vehicle 2 have higher vehicle priorities, and target vehicle 3 has lower vehicle priority, so the weights of the vehicle priorities of target vehicle 1 and target vehicle 2 are higher than those of target vehicle 3. Weight; because the lane change type is emergency lane change, so introduce the weight factor (6) target vehicle comfort, and ap...

example 2

[0093] Example 2: When the system recommendation mode is still used as the lane change mode, and the lane change type is normal lane change, the weight factor (6) target vehicle comfort is not required at this time, and the preset lane change threshold is 6:

[0094] Table 2

[0095]

[0096]

[0097] Similar to Example 1, since the weight element (6) target vehicle comfort is not introduced in this lane change mode, the weight element (6) target vehicle comfort has no effect, and the weight coefficient sum of other weight elements is 100%. Calculate the weight of each target vehicle, and judge that the weight of the target vehicle 2 is less than the preset lane change threshold at this time, judge that the own vehicle meets the lane change condition, and select the target vehicle 2 as the vehicle to be changed.

[0098] Example 3: Similarly, when the user setting mode is selected, the preset lane change threshold is 5,

[0099] table 3

[0100] weight facto...

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Abstract

The invention discloses an automatic vehicle lane changing method. The automatic vehicle lane changing method includes the steps that user lane change information and lane changing mode confirmation information are received; a preset area of a vehicle is monitored, environmental data around the vehicle is acquired in real time and target vehicles are screened, and environmental data around each target vehicle is acquired; the weight of each target vehicle is calculated to determine whether the vehicle meets the lane changing condition or not; if the lane changing condition is not met, the vehicle is fed back to abandon lane changing; and if the lane changing condition is met, the target vehicle with the smallest weight is selected as a lane changing vehicle, the lane changing path is planned, and the automatic lane change of the vehicle is executed. The automatic vehicle lane changing method can not only screen the lane changed vehicle, complete the lane changing path planning and execute the automatic lane changing, but also can monitor the lane changed vehicle in real time and alert the collision risk and assist the coordinated lane changing of the lane changed vehicle, and the safety of the vehicle lane changing is increased; and the fault tolerance is increased, the risk caused by human error operation is reduced, and the driving experience of a user is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle safety and control, in particular to a method for automatically changing lanes of a vehicle. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of people's living standards, the demand and holdings of automobiles are also increasing. Automobiles have become an important means of transportation for people, and users have more and more demands on the safety performance of passenger cars. high. Vehicles running on the road often change their driving lanes. When changing lanes, due to some accidents, misjudgments, negligence and other human errors, collisions between the lane-changing vehicle and the lane-changing vehicle are likely to occur. For example, the vehicle in front changes lanes and the vehicle behind fails to respond in time or makes a wrong response, which may lead to accidents and bring great losses to users. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W40/00B60W40/105B60W40/107B60W50/00
CPCB60W30/18163B60W40/00B60W40/105B60W40/107B60W2050/0043B60W2520/10B60W2520/105
Inventor 孙凯邓堃张军刘卫国
Owner ZHEJIANG GEELY HOLDING (GROUP) CO LTD
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