An automatic emergency braking system combined with driver status monitoring

Abstract

The invention discloses an automatic emergency braking system combined with driver state monitoring. The key points of the technical scheme include an AEB system and a driver state judging system. The driver state judging system includes an image acquisition unit and an image processing unit; The unit collects the driving image of the driver when driving the vehicle and sends it to the image processing unit. The image processing unit processes the driving image to obtain the driver's face orientation at each moment; The time threshold, sub-normal collision time threshold and abnormal collision time threshold, the AEB system calculates the safety distance value, when the distance between the vehicle and the obstacle in front is less than or equal to the safety distance value, the AEB system intervenes to brake. The system can automatically adjust the sensitivity of the AEB system according to the actual driving state of the driver, so as to improve the driving experience of the driver when driving normally and the driving safety when the driver is not paying attention.

Description

technical field [0001] The invention relates to the technical field of emergency braking of intelligent vehicles, and more specifically relates to an automatic emergency braking system combined with driver state monitoring. Background technique [0002] Automatic Brake Assist (AEB) is widely used in intelligent vehicles. The working principle of the AEB system is as follows: the AEB system is equipped with an alarm distance and a safety distance. The AEB system uses ranging tools such as radar to measure the distance to the vehicle in front or obstacles, and then uses the data analysis module to compare the measured distance with the alarm distance. When the safety distance is smaller than the warning distance, the warning will be given. If the safety distance is smaller than the safety distance, even if the driver does not have time to step on the brake pedal, the AEB system will start to make the car brake automatically, so as to ensure safe travel. Escort. The AEB syste...

AI Technical Summary

Problems solved by technology

[0004] 1. For drivers who are inattentive and like to look left and right, when encountering a collision danger, the driver does not pay attention to the early warning prompt of the vehicle's forward collision warning system (FCW), and does not intervene in the brakes in advance, even if the AEB brakes fully in the later stage , the collision is still inevitable, causing damage to the driver himself, other vehicles and others

[0005] 2. The sensitivity level cannot be automatically adjusted according to the driver's actual driving status. Some drivers like to drive close to the vehicle in front due to their driving habits, which may easily trigger AEB by mistake. When AEB is triggered, it will produce relatively strong braking, which will affect the driving experience and may rear-end accident

Images