Front curve detection system and method for automotive self-adaptive cruise

Abstract

The invention relates to the technical field of automobile automatic driving, in particular to a front curve detection system and method for automotive self-adaptive cruise. In the vehicle self-adaptive cruise state, vehicle rough positioning information sent by a GPS is received in real time; automatic driving map information around the vehicle is obtained according to the vehicle rough positioning information, and road information around the vehicle is obtained by using a camera; if the camera can acquire the information of the road around the vehicle, the automatic driving map information is compared with the information of the road around the vehicle to realize accurate positioning of a lane level, and then information of a curve in front of the vehicle is obtained; and if the camera cannot acquire the information of the road around the vehicle, front curve information acquired by the front vehicle is received, and front curve information of the vehicle is acquired according to thefront curve information acquired by the front vehicle. An automatic driving map, a vehicle-mounted camera and a V2X vehicle communication technology are used for achieving front curve recognition, two sets of systems which are redundant to each other are formed, and the robustness of the systems is effectively improved.

Description

technical field [0001] The invention relates to the technical field of automobile automatic driving, in particular to a front curve detection system and method for automobile self-adaptive cruise. Background technique [0002] At present, the automobile industry is showing the development trend of "electrification, intelligence, networking, and sharing", and an important aspect of the intelligence and networking of automobiles is autonomous driving. Autonomous driving can be divided into L1-L5 autonomous driving. Currently, due to the limitations of on-board sensors (radar, camera, etc.), controller performance, and the degree of automotive networking, cars cannot yet achieve L5 fully autonomous driving. However, many new models Already equipped with L2 automatic driving system, ADAS (Advanced Driving Assistant System, Advanced Driver Assistance System). ADAS generally includes ACC (Adaptive Cruise Control, adaptive cruise control) function, and ACC is developed on the basi...

AI Technical Summary

Problems solved by technology

The single radar sensor solution cannot detect the curve ahead, so when entering the curve, the vehicle speed may be high, giving the driver a great sense of insecurity, and even traffic accidents; the sensor solution of millimeter wave radar plus camera can be used in the lane However, it cannot achieve satisfactory performance in many situations, such as unclear lane lines, poor lighting conditions, lane The line is blocked by the vehicle in front, etc.

Images