Automatic emergency braking system and adjusting method and system of automatic emergency braking system

Abstract

The embodiment of the invention discloses an automatic emergency braking system and an adjusting method and system of the automatic emergency braking system. The system comprises a front road information sensing module, a vehicle speed sensing module, an automatic emergency braking controller, an alarm module, a vehicle body electronic stability system controller and a braking execution mechanism module. The automatic emergency braking controller is used for calculating braking acceleration corresponding to the vehicle according to the collision time, a preset collision time threshold value and an acceleration coefficient corresponding to the preset collision time threshold value and sending a deceleration request to the vehicle body electronic stability system controller; entering an adjustment mode according to an adjustment mode entering command sent by the external diagnosis equipment; and updating the control parameters and the control logic according to an adjustment control command sent by the external diagnosis equipment. According to the system of the invention, the braking acceleration logic of the AEB controller can be optimized, and the key parameters in the control logic of the automatic emergency braking system can be adjusted in real time.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of automobiles, and in particular to an automatic emergency braking system, a method and a system for adjusting the automatic emergency braking system. Background technique [0002] With the increase in car ownership and the development of autonomous driving technology, more and more cars have the function of automatic emergency braking. Automatic emergency braking is an effective means of avoiding collisions. The vehicle's automatic emergency braking system can perceive the road conditions ahead through the perception sensor, and transmit the perception result back to the automatic emergency braking (Autonomous Emergency Braking, AEB) controller. The AEB controller compares the perception result with the preset threshold to generate a corresponding The deceleration request including the braking acceleration is given to the Electronic Stability Controller (ESC) controller of the ve...

AI Technical Summary

Problems solved by technology

[0004]The disadvantages of related technologies are: each parameter adjustment process will last for a long time, resulting in an increase in the development cycle of the vehicle and an increase in cost; The adjustment method of the AEB controller is not real-time online, which leads to false triggering and unsatisfactory timing of the automatic emergency braking system of the vehicle; the braking acceleration logic of the AEB controller is usually roughly based on the collision The time or collision distance is divided into several collision time periods or collision distance periods. Each collision time period or collision distance period corresponds to the same braking acceleration, which will lead to poor experience caused by different dangerous situations corresponding to the same deceleration experience. driving experience

Images