A driving assistance system and control method for automatically identifying small obstacles and braking

Abstract

The invention discloses a driving assistance system and control method for automatic identifying small obstacles and braking. The driving assistance system comprises a projection unit for projecting standard graphs to the ground in front of a vehicle, a receiving unit and a control unit; the height from the receiving unit to the ground is larger than the height from the projection unit to the ground, and the receiving unit is used for receiving reflection graphs, generated by the standard graphs, on the ground or the obstacles in front of the vehicle; and the control unit is used for judging whether the obstacles exist in front of the vehicle or not according to the standard graphs and the reflection graphs, when the obstacles exist in front of the vehicle, the size of the obstacles and the position of the obstacles relative to the vehicle are determined, and whether the vehicle is controlled to be subjected to deceleration braking or steering avoidance is determined according to the size of the obstacles. According to the driving assistance system, deformation of the standard graphs on the pavement with the small obstacles relative to a smooth pavement is utilized to judge the position of the obstacles relative to the vehicle and the height or depth of the obstacles, then the vehicle is controlled to be subjected to deceleration braking or steering avoidance, and driving safety and comfort are effectively improved.

Description

Technical field [0001] The invention belongs to the technical field of automobiles, and specifically relates to a driving assistance system and a control method that automatically recognize and brake small obstacles. Background technique [0002] Although the current vehicle low-speed anti-collision system can realize automatic deceleration, it can only recognize large objects such as vehicles and pedestrians, and cannot recognize obstacles with a height of about 10 cm, and cannot recognize road pits. On some national highways or some other non-enclosed paved roads, there are usually some obstacles such as holes or stones. In the case of fast speed or poor lighting conditions, it is difficult for the driver to recognize in advance and slow down in time , Passing these small obstacles at high speed will not only cause severe bumps to passengers but also cause certain damage to the vehicle. Summary of the invention [0003] The purpose of the present invention is to solve the short...

AI Technical Summary

Problems solved by technology

[0002] Although the current vehicle low-speed anti-collision system can realize automatic deceleration, it can only recognize large objects such as vehicles and pedestrians, and cannot recognize obstacles with a height of about 10cm, let alone road pits.

On some national highways, provincial roads or other non-closed paved roads, there are usually some obstacles such as holes or stones. It is difficult for the driver to identify in advance and slow down in time when the vehicle speed is fast or the lighting conditions are poor. When passing through these small obstacles at high speed, it will not only cause serious bumps to passengers but also cause certain damage to the vehicle

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