Automatic emergency brake grading control method and system

Abstract

The invention provides an automatic emergency brake grading control method and system. The self car surrounding information is obtained in real time; according to the collected self car surrounding information, whether the road is the straight multiple lane or curve multiple lane is judged; if the road is the straight multiple lane, through the least square method and the track preliminary calculation method, a sidecar doubling track is predicated; if the road is the curve multiple lane, through the threshold value method, a disturbance target is removed, through a target position compensationmethod, the relative transverse distance between the self car and the sidecar is judged; a safety distance model is used for calculating the dangerous coefficient; and when the dangerous coefficientis smaller than or equal to 1, according to the preset level, grading brake is carried out. The capacity of autonomous vehicle for responding to different environments and automatic processing can beobviously improved, and the safety and comfort of the autonomous vehicles can be improved.

Description

technical field [0001] The invention belongs to the field of automatic emergency braking for automatic driving, and in particular relates to a hierarchical control method and system for automatic emergency braking. Background technique [0002] The field of autonomous driving is developing rapidly. Automatic driving can assist the driver to make correct decisions through intelligent systems or take over the driver's direct control of the vehicle before an accident occurs, enabling the vehicle to achieve the ideal driving behavior of safe driving to the greatest extent. Therefore, automatic driving has become a research field in the field of vehicle safety. Hot spots, the existing automatic driving technology mainly includes adaptive cruise system, lane change assist system, automatic emergency braking system, etc. [0003] The automatic emergency braking system can judge the safety status of the own vehicle through the dynamic and static obstacles in the driving environment...

AI Technical Summary

Problems solved by technology

[0004] At present, the automatic emergency braking system has been mass-produced on some models, but the applicable scenarios are relatively simple, and there are many ideal assumptions. In complex scenes such as intersections, pedestrian detection, and multiple moving obstacle targets, there are more restrictive conditions, and the scope of application of related algorithms still needs to be expanded.

Algorithm models related to automatic emergency braking systems, especially the extended automatic emergency braking system models implemented by intelligent algorithms, are mostly only verified in the virtual simulation environment, and their application in actual vehicles remains to be explored

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