CN104369729A - Active automobile braking method - Google Patents
Active automobile braking method Download PDFInfo
- Publication number
- CN104369729A CN104369729A CN201410574565.0A CN201410574565A CN104369729A CN 104369729 A CN104369729 A CN 104369729A CN 201410574565 A CN201410574565 A CN 201410574565A CN 104369729 A CN104369729 A CN 104369729A
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- CN
- China
- Prior art keywords
- automobile
- distance
- active brake
- warning
- meters
- Prior art date
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/02—Active or adaptive cruise control system; Distance control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2201/00—Particular use of vehicle brake systems; Special systems using also the brakes; Special software modules within the brake system controller
- B60T2201/08—Lane monitoring; Lane Keeping Systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2210/00—Detection or estimation of road or environment conditions; Detection or estimation of road shapes
- B60T2210/30—Environment conditions or position therewithin
- B60T2210/32—Vehicle surroundings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2250/00—Monitoring, detecting, estimating vehicle conditions
- B60T2250/04—Vehicle reference speed; Vehicle body speed
Abstract
The invention discloses an active automobile braking method. The method includes the steps that firstly, a distance induction module is arranged for acquiring the distance between an automobile and a front-end obstacle of the automobile currently and a speed acquisition module is arranged for acquiring the current speed of the automobile; according to the current speed of the automobile, the shortest braking distance of the automobile is calculated, and on the basis, the preset buffering distance and the preset isolation distance are added to the shortest braking distance of the automobile, so that the warning distance and the braking distance of the automobile are acquired; if the distance between the automobile and the front-end obstacle of the automobile currently is smaller than or equal to the warning distance of the automobile, a warning is given to an automobile driver; if the distance between the automobile and the front-end obstacle of the automobile currently is smaller than or equal to the braking distance of the automobile, a braking system of the automobile is controlled to brake the automobile. According to the method, automobile accidents can be effectively avoided.
Description
Technical field
The present invention relates to field of automobile control, particularly relate to a kind of method that automobile initiatively brakes.
Background technology
Vehicle electronics is the general name of car body electronic control device for vehicle and vehicular automotive electronic control setup.Car body electronic control device for vehicle, comprises engine management system, chassis control system and electrical control unit system (body electronics ECU).The most notable feature of vehicle electronics advances to control systemization, with the electric-control system of sensor, microprocessor MPU, actr, tens of even up to a hundred electronic devices and components and parts thereof composition, just obtaining market extremely widely.Car body electronic control device for vehicle is just like human body that is bald-faced, that do not dress any clothing jewelry; Vehicular automotive electronic comprises vehicle information system, auto-navigation system and automotive entertainment system.Vehicular automotive electronic control setup is just like clothing, the jewelry of the person.
Automotive circuit diagram is considered to the revolution in automotive technology development process, and the degree of automotive circuit diagram is counted as the important symbol weighing modern automobile level, is used to develop new model, improves the most important technical measures of automotive performance.Automaker thinks that the quantity of increase vehicle electronics, promotion automotive circuit diagram are the important effective means capturing future automobile market.
According to statistics, from 1989 to 2000, the ratio that on average on each car, electronics package is shared in whole Automobile manufacturing cost increases to more than 23% by 16%.On some Pullman saloons, use the quantity of one chip microcomputer to reach 48, electronic product accounts for more than 50% of integral vehicle cost, and the application of current Eltec has almost been deep into all systems of automobile.
Divide according on the impact of running car performance effect, automobile electronics can be summarized as two classes: a class is electronic control device for vehicle, electronic control device for vehicle will carry out with the use of, the i.e. auto electroincs of so-called " electric-mechanic control system " with mechanical system on car; They comprise driving engine, chassis, electrical control unit.Such as Jetronic, braking anti-lock control, anti-sliding control, polling power controlling, Electronic control suspension, electronic automatic transmission, electrical power steering etc., another kind of is vehicular automotive electronic device, vehicular automotive electronic device is the electronics package that can independently use under automotive environment, and it there is no direct relation with the performance of automobile itself.They comprise vehicle information system (car running computer), navigationsystem, auto audio equipment and tv entertainment system, Vehicular communication system, equipment for surfing the net etc.
The electronic control package of present automobile has had very complete consideration to various situation, but, some places are still had not consider: automobile is when traveling, brake is all controlled by chaufeur substantially, driver fatigue, desert in, be easy to get into an accident, knock the obstacle in front, existing electronic machine can not initiatively brake substantially, avoids the generation of traffic accident.
Patent " automobile active breaking systems and automobile " (application number: 201210067652.8, the applying date: 2012-03-15) discloses a kind of automobile active breaking systems, and it comprises laser transmitting-receiving device, image acquisition system, brake system and control system; Control system is connected with laser transmitting-receiving device, image acquisition system and brake system respectively; Laser transmitting-receiving device is used for launching a light beam along the travel direction of this automobile and receiving this light beam light beam after reflection; When the intensity of folded light beam that laser transmitting-receiving device receives is greater than a preset value, control system triggers image acquisition system obtains current road conditions image along the travel direction of automobile in real time; Control system is analyzed the image that image acquisition system obtains, and when there is character features in image, control system starts brake system ACTIVE CONTROL braking automobile.The automobile active breaking systems that this invention provides judges initiatively to start brake system when there is character features in image, effectively reduces the unexpected injury to pedestrian.This invention also provides a kind of automobile using this automobile active breaking systems.
This mode is not reminded chaufeur when vehicle is by clobber, does not carry out emergency braking yet, only starts brake system when obstacle exists characteristics of human body, has great deficiency.
Summary of the invention
Technical matters to be solved by this invention is for defect involved in background technology, provides a kind of method that automobile initiatively brakes.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
The method that automobile initiatively brakes, comprises following steps:
Step 1), arranges distance perspective and answers distance between the current automobile of module acquires and its front end obstacle;
Step 2), the present speed of speed acquisition module acquires automobile is set;
Step 3), calculates the shortest stopping distance of automobile according to the present speed of automobile;
By the shortest stopping distance of automobile, step 4), adds that default buffer distance obtains the warning distance of automobile;
By the shortest stopping distance of automobile, step 5), adds that default isolation distance obtains the braking distance of automobile;
Step 6), judges whether the distance between current automobile and its front end obstacle is less than or equal to the warning distance of automobile, if be less than or equal to, then gives a warning to the chaufeur of automobile;
Step 7), judge whether the distance between current automobile and its front end obstacle is less than or equal to the braking distance of automobile, if be less than or equal to, then the brake system controlling automobile is braked to automobile.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, described distance-sensor adopts infrared inductor.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, described distance-sensor adopts ultrasonic detection device.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, described speed acquisition module is the vehicle-mounted ecu of automobile itself.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, the scope of described default buffer distance is 2 meters to 20 meters.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, described default buffer distance is 10 meters.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, the scope of described default isolation distance is 0.5 meter to 2 meters.
As the further prioritization scheme of method that a kind of automobile of the present invention initiatively brakes, described default isolation distance is 1 meter.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. can point out chaufeur when automobile is in unsafe condition, improve the vigilant of chaufeur, avoid the generation of traffic accident;
3. initiatively can brake when automobile is in emergency, avoid the generation of traffic accident.
Detailed description of the invention
Below technical scheme of the present invention is described in further detail:
The invention discloses a kind of method that automobile initiatively brakes, comprise following steps:
Step 1), arranges distance perspective and answers distance between the current automobile of module acquires and its front end obstacle;
Step 2), the present speed of speed acquisition module acquires automobile is set;
Step 3), calculates the shortest stopping distance of automobile according to the present speed of automobile;
By the shortest stopping distance of automobile, step 4), adds that default buffer distance obtains the warning distance of automobile;
By the shortest stopping distance of automobile, step 5), adds that default isolation distance obtains the braking distance of automobile;
Step 6), judges whether the distance between current automobile and its front end obstacle is less than or equal to the warning distance of automobile, if be less than or equal to, then gives a warning to the chaufeur of automobile;
Step 7), judge whether the distance between current automobile and its front end obstacle is less than or equal to the braking distance of automobile, if be less than or equal to, then the brake system controlling automobile is braked to automobile.
Described distance-sensor can adopt infrared inductor.
Described distance-sensor also can adopt ultrasonic detection device.
Described speed acquisition module can use the vehicle-mounted ecu of automobile itself.
The scope of described default buffer distance is 2 meters to 20 meters, is preferably 10 meters.
The scope of described default isolation distance is 0.5 meter to 2 meters, is preferably 1 meter.
For example, when automobile present speed is 100 yards, buffer distance is preset as 10 meters, and isolation distance is preset as 1 meter, the shortest stopping distance then calculating this automobile is after 3 meters, binding buffer distance, to calculate warning distance be 13 meters to isolation distance, and braking distance is 4 meters, so when automobile with the speed of 100 yards close to obstacle time, time distance when is between the two less than or equal to 13 meters, give a warning prompting chaufeur, before have obstacle, please drive with caution.
If now chaufeur does not react, still with the speed of 100 yards close to obstacle, then when distance be between the two less than or equal to 4 meters time, by force control brake system drag is carried out to automobile, occur to avoid traffic accident.
And if now chaufeur heeds the warning and reduces speed, so, again carries out calculating warning distance and braking distance according to new speed.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method for automobile active brake, is characterized in that, comprise following steps:
Step 1), arranges distance perspective and answers distance between the current automobile of module acquires and its front end obstacle;
Step 2), the present speed of speed acquisition module acquires automobile is set;
Step 3), calculates the shortest stopping distance of automobile according to the present speed of automobile;
By the shortest stopping distance of automobile, step 4), adds that default buffer distance obtains the warning distance of automobile;
By the shortest stopping distance of automobile, step 5), adds that default isolation distance obtains the braking distance of automobile;
Step 6), judges whether the distance between current automobile and its front end obstacle is less than or equal to the warning distance of automobile, if be less than or equal to, then gives a warning to the chaufeur of automobile;
Step 7), judge whether the distance between current automobile and its front end obstacle is less than or equal to the braking distance of automobile, if be less than or equal to, then the brake system controlling automobile is braked to automobile.
2. the method for automobile active brake according to claim 1, it is characterized in that, described distance-sensor adopts infrared inductor.
3. the method for automobile active brake according to claim 1, it is characterized in that, described distance-sensor adopts ultrasonic detection device.
4. the method for automobile active brake according to claim 1, it is characterized in that, described speed acquisition module is the vehicle-mounted ecu of automobile itself.
5. the method for automobile active brake according to claim 1, it is characterized in that, the scope of described default buffer distance is 2 meters to 20 meters.
6. the method for automobile active brake according to claim 5, it is characterized in that, described default buffer distance is 10 meters.
7. the method for automobile active brake according to claim 1, it is characterized in that, the scope of described default isolation distance is 0.5 meter to 2 meters.
8. the method for automobile active brake according to claim 7, it is characterized in that, described default isolation distance is 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574565.0A CN104369729A (en) | 2014-10-24 | 2014-10-24 | Active automobile braking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574565.0A CN104369729A (en) | 2014-10-24 | 2014-10-24 | Active automobile braking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104369729A true CN104369729A (en) | 2015-02-25 |
Family
ID=52549010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410574565.0A Withdrawn CN104369729A (en) | 2014-10-24 | 2014-10-24 | Active automobile braking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104369729A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128838A (en) * | 2015-09-11 | 2015-12-09 | 浙江吉利汽车研究院有限公司 | Method and system for initiatively reducing speed of vehicle on pedestrian crosswalk |
| CN105752012A (en) * | 2016-04-11 | 2016-07-13 | 新蕾车业无锡有限公司 | Automobile fire catching emergency life escape module |
| CN108189045A (en) * | 2018-01-25 | 2018-06-22 | 中原工学院 | A kind of warp beam of warping machine transport robot and its control method |
| CN110604652A (en) * | 2018-06-15 | 2019-12-24 | 松下知识产权经营株式会社 | Electric vehicle |
| CN114084109A (en) * | 2021-11-03 | 2022-02-25 | 河北汉光重工有限责任公司 | Emergency braking system for unmanned remote control target vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040145238A1 (en) * | 2003-01-24 | 2004-07-29 | Nissan Motor Co., Ltd. | Braking control device |
| CN201224413Y (en) * | 2008-01-21 | 2009-04-22 | 曾昭南 | Train accident prewarning and anticollision device |
| CN203020178U (en) * | 2012-11-08 | 2013-06-26 | 长安大学 | Rear-end collision prevention device based on single chip microcomputer |
| CN103419737A (en) * | 2013-08-15 | 2013-12-04 | 深圳市赛格导航科技股份有限公司 | Anti-collision control method and system for vehicle |
-
2014
- 2014-10-24 CN CN201410574565.0A patent/CN104369729A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040145238A1 (en) * | 2003-01-24 | 2004-07-29 | Nissan Motor Co., Ltd. | Braking control device |
| CN201224413Y (en) * | 2008-01-21 | 2009-04-22 | 曾昭南 | Train accident prewarning and anticollision device |
| CN203020178U (en) * | 2012-11-08 | 2013-06-26 | 长安大学 | Rear-end collision prevention device based on single chip microcomputer |
| CN103419737A (en) * | 2013-08-15 | 2013-12-04 | 深圳市赛格导航科技股份有限公司 | Anti-collision control method and system for vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128838A (en) * | 2015-09-11 | 2015-12-09 | 浙江吉利汽车研究院有限公司 | Method and system for initiatively reducing speed of vehicle on pedestrian crosswalk |
| CN105128838B (en) * | 2015-09-11 | 2019-05-14 | 浙江吉利汽车研究院有限公司 | The method and system of active reduction of speed are carried out to automobile in crossing |
| CN105752012A (en) * | 2016-04-11 | 2016-07-13 | 新蕾车业无锡有限公司 | Automobile fire catching emergency life escape module |
| CN108189045A (en) * | 2018-01-25 | 2018-06-22 | 中原工学院 | A kind of warp beam of warping machine transport robot and its control method |
| CN110604652A (en) * | 2018-06-15 | 2019-12-24 | 松下知识产权经营株式会社 | Electric vehicle |
| CN114084109A (en) * | 2021-11-03 | 2022-02-25 | 河北汉光重工有限责任公司 | Emergency braking system for unmanned remote control target vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150225 |