CN207510403U - A kind of automatic braking device for vehicle - Google Patents

A kind of automatic braking device for vehicle Download PDF

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Publication number
CN207510403U
CN207510403U CN201720313484.4U CN201720313484U CN207510403U CN 207510403 U CN207510403 U CN 207510403U CN 201720313484 U CN201720313484 U CN 201720313484U CN 207510403 U CN207510403 U CN 207510403U
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CN
China
Prior art keywords
vehicle
speed
microcontroller
distance
controller
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720313484.4U
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Chinese (zh)
Inventor
黄莉莉
刘小斌
张亚萍
包尔慨
王珺
李彦晶
柳毅
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Lanzhou Institute of Technology
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Lanzhou Institute of Technology
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Priority to CN201720313484.4U priority Critical patent/CN207510403U/en
Application granted granted Critical
Publication of CN207510403U publication Critical patent/CN207510403U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of automatic braking device for vehicle, it is therefore intended that, it realizes the potential risk of collision of early warning and informs driver in time, and automatically control braking system in the case of necessary and complete self-actuating brake, used technical solution is:Ultrasonic detector including being arranged on front part of vehicle and rear portion, and it is arranged on the vehicle speed sensor of vehicle chassis, ultrasonic detector and vehicle speed sensor are connected to vehicle-mounted computer, vehicle-mounted computer is connected with microcontroller and display system, microcontroller is connected with controller, controller connection brake actuating mechanism;The obstacle distance information and speed information of acquisition by display system are shown and send microcontroller to by vehicle-mounted computer, the obstacle distance information and speed information and threshold value comparison that microcontroller will receive, if prompting operator brake when speed is more than alarm speed, obstacle distance is less than alarm distance;Start brake actuating mechanism by controller when if speed is more than safe speed, obstacle distance is less than safe distance to brake.

Description

A kind of automatic braking device for vehicle
Technical field
The utility model belongs to computer application field, is related to auto electronic control technology, and in particular to a kind of vehicle is certainly Dynamic brake gear.
Background technology
With application of the electronic technology on automobile, people to vehicle safety, comfort, energy saving got over environmentally friendly requirement Come it is higher, particularly after the advent of intelligent automobile so that people propose requirements at the higher level to the quality of the life on wheel, it is desirable to In the case where current energy shortage environmental problem is more and more severe, automobile economical, environmentally friendly, safe can be gone on a journey, wherein safe Property is one of core technology of automobile.
With the increase of world car ownership, capricious weather fresh driver and is not abided by also than being increased in the past The driver for keeping traffic law is more and more, it is impossible to automobile safety distance and safe speed is preferably grasped, when causing driving Automobile is unable to normally travel or safety traffic or even can collide, knock into the back and cause major traffic accidents life threatening.
Therefore, this automobile quantity of solution how could be appropriate increase sharply and irregularly driving and vehicle safety travel Between contradictory relationBy making full use of existing science and technology, installation active anti-collision device for automobile avoids unnecessary Traffic accident, is a kind of highly effective means, and autobrake system also just comes into being.
Autobrake system is mainly used for driver and is unable to control safe distance between vehicles and safe speed, in order to avoid traffic thing Therefore the generation system of taking brake operation automatically by automobile.Current vehicle brake suddenly or rear vehicle speed increase suddenly so that two vehicles Distance is less than alarm distance, and system prompts driver to take brake in a manner that acousto-optic combines automatically driver is not braked again when Vehicle measure, at the same time, autobrake system are in state to be launched convenient for reply emergency braking in time;If driver does not adopt Measure is taken, system will start autobrake system and open danger alarm lamp prompting when two vehicles distance is less than safe distance critical value Other vehicles will substantially reduce the generation of traffic accident probability, especially rear-end collision in this way.
With autobrake system control theory and the constantly improve of model, autobrake system has also obtained certain hair Exhibition.But the development of China's autobrake system is unsatisfactory, the exploitation in kind of vehicle autobrake system is also in research rank Section, most of achievements in research are also in the experimental model stage.Solve the problems, such as that this needs the joint efforts of relevant person, constantly It proposes the research viewpoint in relation to vehicle autobrake system, and wishes to be on the actual application.
Invention content
In order to solve the problems in the prior art, the utility model proposes a kind of automatic braking device for vehicle, can realize The potential risk of collision of early warning simultaneously informs driver in time, and automatically controls braking system in the case of necessary and complete automatic brake Vehicle operates, and improves comfort, operability and the safety of automobile.
In order to achieve the goal above, technical solution is used by the utility model:Including being arranged on front part of vehicle with after The ultrasonic detector in portion and the vehicle speed sensor for being arranged on vehicle chassis, the ultrasonic detector and vehicle speed sensor Vehicle-mounted computer is connected to, vehicle-mounted computer is connected with microcontroller and display system, and microcontroller is connected with controller, and the controller connects Connect brake actuating mechanism;The vehicle-mounted computer shows the obstacle distance information and speed information of acquisition simultaneously by display system Microcontroller, the obstacle distance information and speed information and threshold value comparison that microcontroller will receive are sent to, if speed is more than alarm Speed, obstacle distance prompt operator brake when being less than alarm distance;If speed is more than safe speed, obstacle distance is less than Start brake actuating mechanism by controller during safe distance to brake.
The ultrasonic detector includes three groups of signal receiving sensors and signal emission sensor, front part of vehicle are provided with Two groups, vehicle rear is provided with one group.
The ultrasonic detector is dual-frequency ranging sensor.
Acoustic-optic alarm is provided on the microcontroller.
The vehicle speed sensor is Hall vehicle speed sensor.
The microcontroller is the MC9S12DG128B microcontrollers of 16.
The controller is SPT-K controllers.
It is total by CAN between the vehicle-mounted computer and microcontroller and display system and between microcontroller and controller Line connects.
The controller connects vehicle risk alarm lamp.
Compared with prior art, the utility model utilizes the range information of ultrasonic detector collection vehicle and barrier, Using vehicle speed sensor collection vehicle speed information, vehicle-mounted computer is got after obstacle distance information and speed information by aobvious Show system real-time display, observed for driver, while vehicle-mounted computer sends obstacle distance information and speed information to monolithic Machine, the obstacle distance information and speed information and threshold value comparison that microcontroller will receive, if speed is more than alarm speed, barrier Distance prompts operator brake when being less than alarm distance;If speed is more than safe speed, obstacle distance is less than safe distance Start brake actuating mechanism by controller to brake.The utility model can realize the potential risk of collision of early warning and inform in time Driver, and automatically control braking system in the case of necessary and complete automatic brake operation, improve comfort, the behaviour of automobile The property made and safety, when vehicle operating range is less than safe distance or safety of person vehicle is on the hazard, vehicle realizes report automatically Alert, self-actuating brake can be effectively prevented from traffic accident, ensure that the people go on a journey safely.
Further, front part of vehicle installs two groups of signal receiving sensors and signal emission sensor, and one group of letter is installed at rear portion Number receiving sensor and signal emission sensor, for measuring the barrier of vehicle front and rear, in vehicle traveling accurately It measures the driving safety distance of vehicle, find road safety hidden danger barrier in time, driver is reminded to take measures or complete Automatic brake functions.
Further, when speed be more than alarm speed, distance be less than alarm distance when microcontroller carried by audible and visible alarm device Show operator brake.
Further, microcontroller is the MC9S12DG128B microcontrollers of 16, and interior curing has SPT-K controller softwares, is used Several 16 high-performance microprocessors make it have extremely strong digital processing capabilities with the memory headroom of very big capacity, can be complete Into the complicated algorithm that must be programmed by computer high-level language before very much, such as straight trip rectify a deviation more IPD control, oil pump for engine it is multiple Close control, gesture ambiguity control, automatic Pilot etc..
Further, controller uses SPT-K controllers, simplifies circuit system, facilitates design and repair.And SPT- The reliability of K controller hardwares is much better than similar product so that no matter extremely trembles with fear in northeast snowfield or in southeast hylaeion hypotropicum In, all have high reliability, accident rate is greatly lowered.Controller is the product developed based on CAN bus, when being Unite that node is more or signal transmission distance farther out when, more than one controller networking can be used, save wiring, improve it is reliable Property and flexibility and scalability greatly reinforce.
Description of the drawings
Fig. 1 is the structure diagram of the utility model;
Fig. 2 is the control principle drawing of the utility model;
Fig. 3 is the work flow diagram of the utility model.
Specific embodiment
With reference to specific embodiment and Figure of description the utility model is further explained explanation.
Referring to Fig. 1, the utility model includes being arranged on the ultrasonic detector of front part of vehicle and rear portion and is arranged on vehicle The vehicle speed sensor on chassis, the ultrasonic detector and vehicle speed sensor are connected to vehicle-mounted computer, and vehicle-mounted computer is connected with Microcontroller and display system, microcontroller are connected with controller, and the controller connects brake actuating mechanism;The vehicle-mounted computer will The obstacle distance information and speed information of acquisition shown by display system and sends microcontroller to, the barrier that microcontroller will receive Hinder object range information and speed information and threshold value comparison, if speed is more than alarm speed, obstacle distance is less than alarm distance Prompt operator brake;It brakes if being started when speed is more than safe speed, obstacle distance is less than safe distance by controller Executing agency brakes.Ultrasonic detector includes three groups of signal receiving sensors and signal emission sensor, front part of vehicle setting There are two groups, vehicle rear is provided with one group, and ultrasonic detector is dual-frequency ranging sensor.Sound-light alarm is provided on microcontroller Device, vehicle speed sensor are Hall vehicle speed sensor, and microcontroller is the MC9S12DG128B microcontrollers of 16, controller SPT- K controllers are connected between vehicle-mounted computer and microcontroller and display system and between microcontroller and controller by CAN bus It connects, controller connection vehicle risk alarm lamp.
The utility model includes vehicle-mounted computer, ultrasonic detector, vehicle speed sensor, microcontroller, controller and brake Executing agency.Ultrasonic detector is mainly used for the data such as the distance of the distance to front truck and rear car, automobile and barrier and vapour Vehicle data measures, and data are then transmitted to vehicle-mounted computer in real time again.And processing and automobile itself phase in vehicle-mounted computer The data of pass include speed, acceleration, position;And the transport condition of automobile is monitored in real time, contributes in due course alarm and automatic brake Vehicle.Ultrasonic sensor uses dual-frequency ranging sensor, and three are signal receiving sensor, and three are signal emission sensor, The distance before and after automobile with neighbouring barrier can be measured using the ultrasonic wave time difference;Controller be SPT-K controllers, the controller It can work in the presence of a harsh environment for a long time, have very high reliability, failure rate will be substantially reduced.
Referring to Fig. 2, the acquisition and processing of data:
To realize the self-actuating brake of vehicle, perceived distance and environmental information are first had to, to being equipped with the vehicle of autobrake system For, it is necessary first to measure the distance between vehicle and barrier and peripheral vehicle environment in real time.By various sensors Property is it is found that ultrasonic ranging is to carry out measurement distance from the time difference for being emitted to reception ultrasonic wave, for contactless range measurement side Method, and it is not illuminated by the light the influence of the factors such as intensity, electromagnetic field, measured object color, there is higher sensitivity.Measurement data result It is transmitted to display system and SPT-K controllers respectively by CAN bus;Driver according to the prompting of display system decide whether into Row is braked, and cured SPT-K controllers send out sound-light alarm prompting driver's drop when distance is less than early warning distance in microcontroller Low speed, SPT-K controllers start electric control brake system to start self-actuating brake executing agency when distance is less than safe distance Brake task is performed, and opens danger alarm lamp to prompt other vehicles, so as to which vehicle deceleration be made to stop the hair that avoids traffic accident It is raw.
Microcontroller is analyzed and processed the collected data information of ultrasonic detector in real time, is connected by CAN bus The display system of automobile, shows train safety information in real time;The status information of automobile at this time is carried out by vehicle-mounted computer real When, synthesis analyzing and processing after, judge whether to need to prompt driver by sound-light alarm;And it is controlled by CAN bus SPT-K controllers start electric control brake system, and autobrake system is made to be in state to be triggered, when distance is less than safe distance In order to the braking of effective and safe.
Referring to Fig. 3, utility model works flow is as follows:
(1) SCM program is mainly including the initialization of program, data processing subprogram, and program starts when automobile is powered Operation, the function of main program are to utilize the time difference measurement automobile and barrier for receiving and emitting ultrasonic wave by ultrasonic detector Distance;Speed is detected by being mounted on the Hall vehicle speed sensor at chassis;
(2) by some aggregation of data of the related data in step (1) and automobile mounted computer itself to being sent to together Vehicle-mounted computer is calculated the distance of automobile and current barrier, the speed of automobile by vehicle-mounted computer and is shown;
(3) distance and speed information are transferred to by the control module of display system and microcontroller for core by CAN bus To judge whether vehicle distances come less than early warning distance and safe distance, road speed less than early warning speed and safe speed Control autobrake system ensures vehicle safety travel, the system when speed is more than alarm speed, distance is less than alarm distance Audible and visible alarm prompting operator brake can be sent out;When speed be more than safe speed, distance be less than safe distance when system start from Dynamic brake system, and open danger alarm lamp.
The utility model can be when vehicle operating range be less than safe distance or safety of person vehicle is on the hazard, and vehicle is certainly It is dynamic to realize alarm, self-actuating brake, traffic accident can be effectively prevented from, ensures that the people go on a journey safely.

Claims (1)

1. a kind of automatic braking device for vehicle, which is characterized in that the ultrasonic detector including being arranged on front part of vehicle and rear portion, And the vehicle speed sensor of vehicle chassis is arranged on, the ultrasonic detector and vehicle speed sensor are connected to vehicle-mounted computer, vehicle It carries computer and is connected with microcontroller and display system, microcontroller is connected with controller, and the controller connects brake actuating mechanism;Institute It states vehicle-mounted computer to show the obstacle distance information and speed information of acquisition by display system and send microcontroller to, monolithic The obstacle distance information and speed information and threshold value comparison that machine will receive, if speed is small more than alarm speed, obstacle distance Operator brake is prompted when alarm distance;Pass through control when if speed is more than safe speed, obstacle distance is less than safe distance Device processed starts brake actuating mechanism braking;The ultrasonic detector includes three groups of signal receiving sensors and signal transmitting sensing Device, front part of vehicle are provided with two groups, and vehicle rear is provided with one group;
The ultrasonic detector is dual-frequency ranging sensor;
Acoustic-optic alarm is provided on the microcontroller;
The vehicle speed sensor is Hall vehicle speed sensor;
The microcontroller is the MC9S12DG128B microcontrollers of 16;
The controller is SPT-K controllers;
Connected between the vehicle-mounted computer and microcontroller and display system and between microcontroller and controller by CAN bus It connects;
The controller connects vehicle risk alarm lamp.
CN201720313484.4U 2017-03-28 2017-03-28 A kind of automatic braking device for vehicle Expired - Fee Related CN207510403U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720313484.4U CN207510403U (en) 2017-03-28 2017-03-28 A kind of automatic braking device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720313484.4U CN207510403U (en) 2017-03-28 2017-03-28 A kind of automatic braking device for vehicle

Publications (1)

Publication Number Publication Date
CN207510403U true CN207510403U (en) 2018-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720313484.4U Expired - Fee Related CN207510403U (en) 2017-03-28 2017-03-28 A kind of automatic braking device for vehicle

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108909622A (en) * 2018-07-25 2018-11-30 合肥市智信汽车科技有限公司 A kind of reminding method of vehicle braking
CN108944857A (en) * 2018-06-27 2018-12-07 昆明理工大学 A kind of nearly zebra stripes forced deceleration of vehicle or parking device
CN112201080A (en) * 2020-08-20 2021-01-08 湖南猎豹汽车股份有限公司 Automatic alarm braking system based on parking lot low-speed parking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108944857A (en) * 2018-06-27 2018-12-07 昆明理工大学 A kind of nearly zebra stripes forced deceleration of vehicle or parking device
CN108909622A (en) * 2018-07-25 2018-11-30 合肥市智信汽车科技有限公司 A kind of reminding method of vehicle braking
CN112201080A (en) * 2020-08-20 2021-01-08 湖南猎豹汽车股份有限公司 Automatic alarm braking system based on parking lot low-speed parking

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180619

Termination date: 20190328

CF01 Termination of patent right due to non-payment of annual fee