An aebs master control method
A main control and braking distance technology, applied in the field of vehicle auxiliary driving, can solve problems such as single, unable to set control strategy and diverse parameters, and poor braking effect
Active Publication Date: 2020-12-11
中科安达(北京)科技有限公司
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Problems solved by technology
[0003] The main control program of the existing AEBS adopts a single TTC (time to collision) parameter, which cannot provide accurate ranging values for different vehicle types and obstacles, and cannot set different control strategies and diverse parameters, resulting in obstacle target Improper handling of distance measurement and poor braking effect
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[0084] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0085] The present invention provides a main control method for AEBS, which aims to improve the reliability and safety of AEBS, reduce the probability of missing brakes and false brakes, by setting a variety of ranging models and braking strategies according to different vehicle speeds and different models. Avoid rear-end collisions and injuries to passengers in the car, and improve user experience while ensuring safety. The vehicles described in the embodiments of the present invention include all motor vehicles that can be installed and run normally with AEBS, and the automatic braking system of AEBS is isolated from the normal running power system of the vehicle, ...
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The invention discloses an AEBS main control method which comprises the following steps: measuring the distance between an automobile and an obstacle which is nearest from the automobile by using a sensor on an AEBS at a time point of a present frame, so as to obtain a reference valuing code c1; judging whether the reference valuing code c1 is smaller than a preset safety threshold N or not; if c1is smaller than N, starting a braking instruction according to a preset braking distance comparison table, and performing braking operation of the automobile; if c1 is greater than or equal to N, continuously executing monitoring operation on the automobile. The purpose that distance measurement models and braking strategies are set diversely according to parameters such as different automobile speeds and different automobile models is achieved, the reliability and the security of automatic braking of the AEBS are improved, and the rate of braking omission and wrong braking can be reduced.
Description
technical field [0001] The invention relates to the technical field of vehicle auxiliary driving, in particular to an AEBS main control method. Background technique [0002] AEBS stands for Autonomous Emergency Braking System, an automatic emergency braking system, which is an autonomous and automatic road vehicle safety system. It uses sensors to monitor the relative speed and distance between the vehicle in front and the detected and target vehicle, and also monitors the front and rear of the vehicle. Obstacles are detected, and after a series of internal program calculations, the upcoming situation is calculated. Under normal circumstances, AEBS will give an alarm first, and if the driver is not in danger of actively braking, the braking signal will be transmitted to the AEBS control system for automatic braking, and emergency braking can automatically avoid collisions or reduce their impact. [0003] The main control program of the existing AEBS adopts a single TTC (tim...
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IPC IPC(8): B60W30/09
Inventor 冉绍平邢伟一李赞姜晓燕
Owner 中科安达(北京)科技有限公司