Automobile active anti-collision curve false-alarm eliminating method

A technology for automobiles and curves, applied to vehicle components, external condition input parameters, control devices, etc., can solve the problems of multiple false alarms and difficult to distinguish vehicles, and achieve traffic safety, improve transportation capacity, and reduce loss of life and property Effect

Active Publication Date: 2014-12-10
上海保资智能科技有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

On the curved road section, it is impossible to judge the relative position of vehicles on different lanes by relying solely on radar, and it is difficult to identify vehicles that pose a danger to the vehicle in this lane, and there are often more false alarms

Method used

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  • Automobile active anti-collision curve false-alarm eliminating method
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  • Automobile active anti-collision curve false-alarm eliminating method

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] The invention adopts the azimuth measurement method combined with the virtual road fitting technology to eliminate false alarms. The defined azimuth is the angle between the line formed by the two vehicles and the line formed directly in front of the vehicle, as shown in the attached figure 1 As shown, the vehicle 1 and the vehicle in front 2 are driving on the curve 3. According to their speed and distance, if they follow the straight lane judgment rules, they will issue a collision warning or take active anti-collision measures; but because they are in the curve 3 In the different lanes on the road, no collision is expected, so it is a "false alarm". In order to remove this false alarm, it is necessary to judge whether the two vehicles are in the same lane. If they are in the same lane, it is not a false alarm. If they are in different lanes, they are false a...

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Abstract

The invention relates to an automobile active anti-collision curve false-alarm eliminating method. According to the automobile active anti-collision curve false-alarm eliminating method, an automobile is idealized into a mass point, and the automobile runs along a central line of a curve; an azimuth angle is defined to be the included angle between the straight line formed by two automobiles and the straight line formed by the exact front of the automobile, and the changing range of the azimuth angle in the same lane is worked out along the dynamic changes of the present range D of the two automobiles. The relative distance D and the azimuth angle theta are measured through a video or a millimeter-wave radar or a laser radar sensor, whether the azimuth angle is within the range or not is judged, and if yes, it is indicated that the two automobiles are in the same lane; if not, the two automobiles are not in the same lane, and a false alarm can be eliminated. The automobile active anti-collision curve false-alarm eliminating method has great practical significance and wide application prospects for solving the problem of traffic safety, improving transportation capability, reducing the occurrence rate of terrible traffic accidents, reducing losses of life and properties and improving social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an automatic control method for automobiles, in particular to a method for eliminating false alarms on curves for active collision avoidance technology of automobiles. Background technique [0002] As a modern and advanced means of transportation, automobiles have changed people's way of life, promoted the development of social economy and the progress of human culture, brought great convenience to people's life, but also brought serious traffic safety problems. In order to reduce traffic accidents and casualties, countries are actively researching countermeasures and using various methods and measures to reduce the occurrence of traffic accidents. Not only that, the car anti-collision system is closely related to the future development direction of cars. In the near future, car driving will become simple and convenient, and the dependence on the level of driving skills of pers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/08B60W40/06B60W40/10B60W40/105B60W40/107
CPCB60W30/0953B60W40/06B60W40/10B60W2520/06B60W2552/00B60W2552/30B60W2554/801
Inventor 姜显扬
Owner 上海保资智能科技有限公司
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