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Lane changing assistance early warning system and control method thereof

A technology of lane change assistance and early warning system, applied in signal devices and other directions, can solve problems such as difficult expansion, limited expansion of active safety technology, poor versatility of radar sensors, etc., and achieve the effect of increasing energy

Active Publication Date: 2016-02-03
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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  • Application Information

AI Technical Summary

Problems solved by technology

The blind spot detection system based on millimeter-wave radar currently mainly adopts a master-slave structure, which is not easy to expand, and the versatility of radar sensors is poor. The expansion of active safety technology based on millimeter-wave radar technology is limited, and the resource reuse rate is low.

Method used

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  • Lane changing assistance early warning system and control method thereof
  • Lane changing assistance early warning system and control method thereof
  • Lane changing assistance early warning system and control method thereof

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Embodiment Construction

[0028] Such as figure 1 As shown, the vehicle lane change auxiliary early warning system uses millimeter-wave radar sensors to detect multiple targets in the blind areas on both sides of the rear of the vehicle and in the rear area. The radar sensors send the detected data to the main control unit in real time through the CAN bus and transmit them Easy system expansion. The main control unit collects vehicle-related status information, including the vehicle speed signal acquisition unit for collecting the current vehicle speed, the left and right turn signal switch signal acquisition unit for collecting the turn signal switch signal, and the steering wheel angle signal acquisition unit for collecting the steering wheel angle signal. Combining information such as turn signal status, vehicle speed, steering wheel angle and other information with radar detection data, first filter out static targets, and then judge whether the dynamic target is in the danger alarm area. If it is ...

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Abstract

The invention discloses a lane changing assistance early warning system. A right rear radar sensor and a left rear radar sensor used for detecting the two sides of the rear area are arranged on the two sides of a vehicle respectively, the right rear radar sensor and the left rear radar sensor output detection signals to a main control unit through a CAN bus, and the main control unit outputs a warning signal to a warning control unit. The early warning system is realized based on a lane changing assistance control unit of a single-chip microcomputer system and the DSP-based millimeter-wave radar sensors installed on the two sides of the rear area of the vehicle, and communication between the lane changing assistance control unit and the millimeter-wave radar sensors is achieved through the CAN bus; furthermore, the early warning system can be expanded by adding algorithms and radar modules, the expandability of the system is improved, and then an active safe system capable of achieving rear collision prevention, door opening warning and front collision prevention is obtained.

Description

technical field [0001] The invention relates to the technical field of automobile active safety, in particular to a CAN bus-based vehicle lane change auxiliary early warning system and its control method (LCA, LineChangeAssistant) system. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of automobile driving performance, people pay more and more attention to the safety of automobiles. Active safety technology plays a particularly prominent role in vehicle safety, which can effectively prevent accidents. [0003] According to statistics, in vehicle accidents, due to the blind spot of the rear view of the vehicle, the accident of colliding with the car coming from behind when the vehicle changes lanes accounts for 5%. The vehicle lane change auxiliary warning system is an active safety technology developed to avoid such accidents. [0004] At present, the lane change assistance technology is mainly implemented ...

Claims

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Application Information

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IPC IPC(8): B60Q9/00
Inventor 刘贵如周鸣争汪军卢桂馥王陆林邹姗
Owner ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
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