CN104369728A - Automotive active braking system - Google Patents
Automotive active braking system Download PDFInfo
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- CN104369728A CN104369728A CN201410574529.4A CN201410574529A CN104369728A CN 104369728 A CN104369728 A CN 104369728A CN 201410574529 A CN201410574529 A CN 201410574529A CN 104369728 A CN104369728 A CN 104369728A
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- Prior art keywords
- distance
- automobile
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- warning
- braking
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses an automotive active braking system. The system comprises a distance sensing module, a speed acquiring module, a braking module, a warning module and a control module, wherein the control module comprises a calculating unit, a judging unit and an executing unit, the calculating unit is used for calculating the shortest braking distance according to the current speed of an automobile, obtaining warning distance by adding preset buffering distance to the shortest braking distance and obtaining braking distance by adding preset isolation distance to the shortest braking distance, the judging unit is used for sending a warning instruction to the executing unit when the distance between the automobile and an obstacle in front is smaller than or equal to the warning distance and sending a braking instruction to the executing unit when the distance between the automobile and the obstacle in front is smaller than or equal to the braking distance, and the executing unit is used for controlling the warning module to give a warning prompt to a driver after receiving the warning instruction and controlling the braking module to brake the automobile after receiving the braking instruction. By the adoption of the system, car accidents can be effectively avoided.
Description
Technical field
The present invention relates to field of automobile control, particularly relate to a kind of automobile active breaking systems.
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 automobile active breaking systems.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of automobile active breaking systems, comprise distance induction module, speed acquisition module, brake module, alert module and control module, described control module is electrically connected respectively and apart from induction module, speed acquisition module, brake module;
Described distance induction module is used for the distance between measured automobiles and its front end obstacle, and this distance is passed to described control module;
Described speed acquisition module for gathering the present speed of running car, and is passed to described control module;
Described brake module is used for carrying out drag to automobile;
Described alert module is for the prompting that gives a warning to chaufeur;
Described control module comprises calculating unit, judging unit and performance element;
Described calculating unit calculates the shortest stopping distance of automobile according to the present speed of automobile, the shortest stopping distance is added default buffer distance obtains warning distance, the shortest stopping distance added default isolation distance obtains braking distance;
Described judging unit judges whether the distance between automobile and its front end obstacle is less than or equal to warning distance and braking distance respectively, in the distance between automobile and its front end obstacle is less than or equal to warning distance, sends warning instruction to performance element; In distance between automobile and its front end obstacle is less than or equal to braking distance, send brake instruction to performance element;
Described performance element, when receiving warning instruction, controls alert module and to give a warning prompting to chaufeur; When receiving brake instruction, controlling brake module and drag is carried out to automobile.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, the treater of described control module adopts AVR series monolithic.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, the treater of described control module adopts Atmega168PA micro controller system.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, described distance-sensor adopts infrared inductor.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, described distance-sensor adopts ultrasonic detection device.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, the scope of described default buffer distance is 2 meters to 20 meters.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, described default buffer distance is 10 meters.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, the scope of described default isolation distance is 0.5 meter to 2 meters.
As the further prioritization scheme of a kind of automobile active breaking systems of the present invention, 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 automobile active breaking systems, comprise distance induction module, speed acquisition module, brake module, alert module and control module, described control module is electrically connected respectively and apart from induction module, speed acquisition module, brake module;
Described distance induction module is used for the distance between measured automobiles and its front end obstacle, and this distance is passed to described control module;
Described speed acquisition module for gathering the present speed of running car, and is passed to described control module;
Described brake module is used for carrying out drag to automobile;
Described alert module is for the prompting that gives a warning to chaufeur;
Described control module comprises calculating unit, judging unit and performance element;
Described calculating unit calculates the shortest stopping distance of automobile according to the present speed of automobile, the shortest stopping distance is added default buffer distance obtains warning distance, the shortest stopping distance added default isolation distance obtains braking distance;
Described judging unit judges whether the distance between automobile and its front end obstacle is less than or equal to warning distance and braking distance respectively, in the distance between automobile and its front end obstacle is less than or equal to warning distance, sends warning instruction to performance element; In distance between automobile and its front end obstacle is less than or equal to braking distance, send brake instruction to performance element;
Described performance element, when receiving warning instruction, controls alert module and to give a warning prompting to chaufeur; When receiving brake instruction, controlling brake module and drag is carried out to automobile.
The treater of described control module adopts AVR series monolithic, such as Atmega168PA micro controller system.
Described distance-sensor can adopt infrared inductor.
Described distance-sensor also can adopt ultrasonic detection device.
The scope of described default buffer distance is 2 meters to 20 meters, is optimized for 10 meters.
The scope of described default isolation distance is 0.5 meter to 2 meters, is optimized for 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 (9)
1. an automobile active breaking systems, is characterized in that, comprise distance induction module, speed acquisition module, brake module, alert module and control module, described control module is electrically connected respectively and apart from induction module, speed acquisition module, brake module;
Described distance induction module is used for the distance between measured automobiles and its front end obstacle, and this distance is passed to described control module;
Described speed acquisition module for gathering the present speed of running car, and is passed to described control module;
Described brake module is used for carrying out drag to automobile;
Described alert module is for the prompting that gives a warning to chaufeur;
Described control module comprises calculating unit, judging unit and performance element;
Described calculating unit calculates the shortest stopping distance of automobile according to the present speed of automobile, the shortest stopping distance is added default buffer distance obtains warning distance, the shortest stopping distance added default isolation distance obtains braking distance;
Described judging unit judges whether the distance between automobile and its front end obstacle is less than or equal to warning distance and braking distance respectively, in the distance between automobile and its front end obstacle is less than or equal to warning distance, sends warning instruction to performance element; In distance between automobile and its front end obstacle is less than or equal to braking distance, send brake instruction to performance element;
Described performance element, when receiving warning instruction, controls alert module and to give a warning prompting to chaufeur; When receiving brake instruction, controlling brake module and drag is carried out to automobile.
2. automobile active breaking systems according to claim 1, is characterized in that, the treater of described control module adopts AVR series monolithic.
3. automobile active breaking systems according to claim 2, is characterized in that, the treater of described control module adopts Atmega168PA micro controller system.
4. automobile active breaking systems according to claim 1, is characterized in that, described distance-sensor adopts infrared inductor.
5. automobile active breaking systems according to claim 1, is characterized in that, described distance-sensor adopts ultrasonic detection device.
6. automobile active breaking systems according to claim 1, is characterized in that, the scope of described default buffer distance is 2 meters to 20 meters.
7. automobile active breaking systems according to claim 6, is characterized in that, described default buffer distance is 10 meters.
8. automobile active breaking systems according to claim 1, is characterized in that, the scope of described default isolation distance is 0.5 meter to 2 meters.
9. automobile active breaking systems according to claim 8, is characterized in that, described default isolation distance is 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574529.4A CN104369728A (en) | 2014-10-24 | 2014-10-24 | Automotive active braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574529.4A CN104369728A (en) | 2014-10-24 | 2014-10-24 | Automotive active braking system |
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| Publication Number | Publication Date |
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| CN104369728A true CN104369728A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410574529.4A Withdrawn CN104369728A (en) | 2014-10-24 | 2014-10-24 | Automotive active braking system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015520A (en) * | 2015-07-27 | 2015-11-04 | 苏州宏展信息科技有限公司 | Anti-collision system for automobile |
| 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 |
| CN105150930A (en) * | 2015-08-24 | 2015-12-16 | 无锡伊佩克科技有限公司 | Large vehicle blind area monitoring system based on infrared induction |
| CN108973861A (en) * | 2018-07-24 | 2018-12-11 | 浙江合众新能源汽车有限公司 | A kind of intelligence A column driving safety system |
| CN113291273A (en) * | 2021-07-28 | 2021-08-24 | 天津所托瑞安汽车科技有限公司 | AEB-based vehicle brake control method and device, electronic device and medium |
-
2014
- 2014-10-24 CN CN201410574529.4A patent/CN104369728A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105015520A (en) * | 2015-07-27 | 2015-11-04 | 苏州宏展信息科技有限公司 | Anti-collision system for automobile |
| CN105150930A (en) * | 2015-08-24 | 2015-12-16 | 无锡伊佩克科技有限公司 | Large vehicle blind area monitoring system based on infrared induction |
| 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 |
| CN108973861A (en) * | 2018-07-24 | 2018-12-11 | 浙江合众新能源汽车有限公司 | A kind of intelligence A column driving safety system |
| CN113291273A (en) * | 2021-07-28 | 2021-08-24 | 天津所托瑞安汽车科技有限公司 | AEB-based vehicle brake control method and device, electronic device and medium |
| CN113291273B (en) * | 2021-07-28 | 2021-09-24 | 天津所托瑞安汽车科技有限公司 | AEB-based vehicle brake control method and device, electronic device and medium |
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Application publication date: 20150225 |