CN1070879A - Automabile safety driving anti-striking fuzzy control unit - Google Patents
Automabile safety driving anti-striking fuzzy control unit Download PDFInfo
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- CN1070879A CN1070879A CN 92113256 CN92113256A CN1070879A CN 1070879 A CN1070879 A CN 1070879A CN 92113256 CN92113256 CN 92113256 CN 92113256 A CN92113256 A CN 92113256A CN 1070879 A CN1070879 A CN 1070879A
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Abstract
The present invention relates to vehicle safety travel anti-collision technique field, be applicable to car, the utility van of hydraulic braking.
Automabile safety driving anti-striking fuzzy control unit, comprise hardware and software, it is characterized in that hardware configuration by 8098 single-chip microprocessor systems, active ultrasonic velocity measurement ranging system, self-actuating brake actuating system, digital display circuit, other control circuit, EPROM fuzzy control software system and DC/DC power converting circuit are formed.Dependable performance, good stability, reaction time≤0.2 second, thus avoid or traffic accident takes place when reducing running car, guaranteed traffic safety.
Description
The present invention relates to vehicle safety travel anti-collision technique field, be applicable to the car of hydraulic braking, utility van.
Since the seventies, every year is died from the number of traffic accident up to 40-60 ten thousand people in the whole world.And corresponding economically loss is more heavy.Only U.S.'s loss in 1987 is nearly 20,000,000,000 dollars, nearly 35,000,000,000 dollars of nineteen ninety losses.In traffic accident, the 89%th, the self-propelled vehicle accident, wherein automobile accident accounts for 80%.According to the traffic management system reflection, the main reason of accident is that the driver steps on the gas.In the driver was driving fast running, emergency brake or pedestrian appear suddenly in the place ahead to fall suddenly when Che Qian etc. jeopardizes safe situation, tends to cause traffic accident.This mainly is relevant in the psychological quality at crucial moment with the driver, is on the other hand to take the emergency brake measure because the driver has little time reaction at urgent brains constantly.According to the statistics made by the departments concerned, the driver causes traffic accident to account for 59.6% owing to discovering late reaction in reaction, judgement, operating process slowly, accounts for 34.8% owing to misjudgment causes traffic accident, and mistake is driven and caused traffic accident to account for 4.8%.Above-mentioned total causes traffic accident to account for 99.2%.This shows that it is the major cause that causes traffic accident that the driver reacts untimely.
At present, countries in the world reduce the traffic accident loss for reducing traffic accident, and people are being engaged in the work of the research and development product of running car anti-collision technique.According to the relevant report with the U.S. of Japan, " active radar ranging automobile collision avoidance system ", " active laser range finding automobile collision avoidance system " carry out in the development process.Up to now, also there is not better running car anti-collision technique in the world.
The objective of the invention is for fear of or traffic accident takes place when reducing running car, guarantee traffic safety and design performance is reliable, good stability, the fast automabile safety driving anti-striking fuzzy control unit of speed of response.
To achieve these goals, the present invention by the following technical solutions.
Automabile safety driving anti-striking fuzzy control unit, comprise hardware and software, it is characterized in that hardware configuration by 8098 single-chip microprocessor systems, with the joining active ultrasonic velocity measurement ranging system of 8098 single-chip microprocessor systems, with the joining self-actuating brake actuating system of 8098 single-chip microprocessor systems, with the joining digital display circuit of 8098 single-chip microprocessor systems, with joining other control circuit of 8098 single-chip microprocessor systems, formed with 8098 single-chip microprocessor systems joining EPROM fuzzy control software system and DC/DC power converting circuit.
Active ultrasonic velocity measurement ranging system is made up of pulse oscillation circuit → pulse modulated circuit → power amplification circuit → push-pull output circuit → ultrasonic probe → clamp buffer circuit → pre-amplification circuit → second-order active filter 1 → second-order active filter 2 → second-order active filter 3 → amplifying circuit → rectification buffer circuit → noise threshold comparator circuit.
The self-actuating brake actuating system is made up of the self-actuating brake actuating mechanism circuit that just changes control circuit and reverse turn control circuit and connect with the forward and backward control circuit respectively parallel with one another.
Owing to adopted technique scheme, the dependable performance of automabile safety driving anti-striking fuzzy control unit, good stability, reaction time≤0.2 second, thus avoid or traffic accident takes place when reducing running car, guaranteed traffic safety.
Description of drawings:
Fig. 1 is the hardware block diagram of automabile safety driving anti-striking fuzzy control unit.
Fig. 2 is the structured flowchart of automabile safety driving anti-striking fuzzy control unit.
Fig. 3 is the software system block diagram of automabile safety driving anti-striking fuzzy control unit.
The present invention is further described as follows below in conjunction with description of drawings:
The core of automabile safety driving anti-striking fuzzy control unit is 8098 single-chip microprocessor systems.8098 single-chip microprocessor systems have High Performance multiple accumulator structure, A/D converter (10 two scale notations of resolution) are arranged, the D/A converter of pulse width modulation mode; The synchronous/asynchronous serial communication interface is arranged; The HSI of suitable high speed processing switching value I/O and HSO etc. are arranged.
Traffic regulation regulation: " traveling automobile in the same way, back car needs according to weather, road conditions, keeps " necessary security distance " with front truck, and this " necessary security apart from " is exactly one " fuzzy concept ".We are the boundary line according to fuzzy control theory with " necessary security distance ", and the automobile in travelling is implemented crashproof control.
Automobile travels on highway with certain speed per hour, active ultrasonic velocity measurement ranging system real-time ultrasound is measured front truck (or obstacle) and this car relative velocity and distance, fuzzy algorithm through automabile safety driving anti-striking fuzzy control unit, after software such as fuzzy diagnosis and the fuzzy judgment fast processing, drive the self-actuating brake actuating system and finish corresponding deceleration or braking automatically.Include " keeping former speed ", " some braking ", " brake snub " and corresponding actions such as " emergency brakings "." some braking ", " brake snub " reach the strength size of " emergency braking " all to be decided on particular cases such as weather, road conditions, distance, speed, adopts the stepless variable process, is implemented automatically by automabile safety driving anti-striking fuzzy control unit.
When the distance of Ben Che and front truck (or obstacle) is crossed " the necessary security distance " of this speed per hour, this car will be implemented braking maneuver.It is big more that front and back two cars are broken through safety distance, and this car rate of braking is big more, otherwise more little.
Brake complete anthropomorphic dummy, divide the action of three parts.When approaching " necessary security distance " with leading vehicle distance, implement " point stop system "; When equaling " necessary security distance " with leading vehicle distance, implement " brake snub "; When during seriously less than " necessary security distance ", implementing " emergency braking " with leading vehicle distance.
Various decelerations and braking maneuver are controlled by automabile safety driving anti-striking fuzzy control unit, are not subjected to the influence of driver factor.
Automabile safety driving anti-striking fuzzy control unit will be according to moving velocity (relative velocity), road conditions and two spacings of front and back car, come the speed of a motor vehicle of car behind the quick adjusting, make it and front truck keeps " necessary security distance ".When two spacings during less than " necessary security distance ", this car is in time regulated by the automabile safety driving anti-striking fuzzy control unit automatic guidance, till two spacings are during more than or equal to " necessary security distance ".At this moment, automabile safety driving anti-striking fuzzy control unit can not limit acceleration.
In normal driving, outside vehicle front " safety distance " limit at the traffic regulation defined, suddenly manifest obstacle information, automabile safety driving anti-striking fuzzy control unit also can in time be regulated the speed of a motor vehicle or enforcement " emergency braking ", avoids or reduce the generation of human accident.
Automabile safety driving anti-striking fuzzy control unit all reaches every performance figure after being contained in and moving on the three peak board utility vans:
Reaction time :≤0.2 paper money
Oscillation frequency: 12MHz
Synchronous signal cycle: 131ms
Ultrasonic signal frequencies: 22.8KHz ± 0.1%
Operating ambient temperature :-20 ℃-+40 ℃
Relative humidity: less than 90%
Numeric display: 10 systems, wherein measured distance shows 2; Take the measured distance of glancing impact to show 2.DC/DC power supply :+5V; ± 12V(provides by automobile storage battery 12V)
The control action scope: " keeping former speed "-when with leading vehicle distance during greater than " necessary security distance ";
" some braking "-when being tending towards near " necessary security distance " with leading vehicle distance;
" brake snub "-when equaling " necessary security distance " with leading vehicle distance;
" emergency braking "-when with leading vehicle distance during less than " necessary security distance ".
Claims (3)
1, automabile safety driving anti-striking fuzzy control unit, comprise hardware and software, it is characterized in that hardware configuration by 8098 single-chip microprocessor systems, with the joining active ultrasonic velocity measurement ranging system of 8098 single-chip microprocessor systems, with the joining self-actuating brake actuating system of 8098 single-chip microprocessor systems, with the joining digital display circuit of 8098 single-chip microprocessor systems, with 8098 single-chip microprocessor systems link other control circuit, formed with 8098 single-chip microprocessor systems joining EPROM fuzzy control software system and DC/DC power converting circuit.
2, automabile safety driving anti-striking fuzzy control unit according to claim 1 is characterized in that active ultrasonic velocity measurement ranging system is made up of pulse oscillation circuit → pulse modulated circuit → power amplification circuit → push-pull output circuit → ultrasonic probe → clamp buffer circuit → pre-amplification circuit → second-order active filter 1 → second-order active filter 2 → second-order active filter 3 → amplifying circuit → rectification buffer circuit → noise threshold comparator circuit.
3, automabile safety driving anti-striking fuzzy control unit according to claim 1 is characterized in that the self-actuating brake actuating system is made up of the self-actuating brake actuating mechanism circuit that just changes control circuit and reverse turn control circuit and connect with the forward and backward control circuit respectively parallel with one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113256 CN1070879A (en) | 1992-11-26 | 1992-11-26 | Automabile safety driving anti-striking fuzzy control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113256 CN1070879A (en) | 1992-11-26 | 1992-11-26 | Automabile safety driving anti-striking fuzzy control unit |
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| Publication Number | Publication Date |
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| CN1070879A true CN1070879A (en) | 1993-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113256 Pending CN1070879A (en) | 1992-11-26 | 1992-11-26 | Automabile safety driving anti-striking fuzzy control unit |
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| CN (1) | CN1070879A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556022A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Intelligent brake control device and control method thereof |
| CN102862557A (en) * | 2012-08-27 | 2013-01-09 | 张美玲 | Automatic brake device of automotive vehicle |
| CN102897156A (en) * | 2012-10-22 | 2013-01-30 | 安徽省鸿运机械制造有限公司 | Intelligent slowing system for vehicle |
| CN103010140A (en) * | 2012-12-29 | 2013-04-03 | 苏州市职业大学 | Ultrasonic vehicle induction safety deceleration system |
| CN103029695A (en) * | 2012-05-04 | 2013-04-10 | 上海华普汽车有限公司 | Electric power-assisted brake device of automobile and control method |
| CN103112439A (en) * | 2011-11-16 | 2013-05-22 | 康德彪 | Natural circulation system for automobile automatic braking |
| CN101648521B (en) * | 2008-08-12 | 2013-05-29 | 比亚迪股份有限公司 | Self-actuating braking system and control method thereof |
| CN104129377A (en) * | 2014-07-25 | 2014-11-05 | 杭州电子科技大学 | Initiative anticollision self-adapting fuzzy control method for vehicle |
| CN106249739A (en) * | 2016-08-26 | 2016-12-21 | 广州小瓦智能科技有限公司 | Moving algorithm is hit in a kind of high-performance machine people's air defense |
| CN107618435A (en) * | 2016-07-15 | 2018-01-23 | 芜湖优必慧新能源科技有限公司 | A kind of preventing car from close trailing collision active safety system |
-
1992
- 1992-11-26 CN CN 92113256 patent/CN1070879A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101648521B (en) * | 2008-08-12 | 2013-05-29 | 比亚迪股份有限公司 | Self-actuating braking system and control method thereof |
| CN103112439B (en) * | 2011-11-16 | 2015-04-08 | 康德彪 | Natural circulation system for automobile automatic braking |
| CN103112439A (en) * | 2011-11-16 | 2013-05-22 | 康德彪 | Natural circulation system for automobile automatic braking |
| CN102556022A (en) * | 2012-01-16 | 2012-07-11 | 浙江吉利汽车研究院有限公司 | Intelligent brake control device and control method thereof |
| CN103029695A (en) * | 2012-05-04 | 2013-04-10 | 上海华普汽车有限公司 | Electric power-assisted brake device of automobile and control method |
| CN102862557A (en) * | 2012-08-27 | 2013-01-09 | 张美玲 | Automatic brake device of automotive vehicle |
| CN102897156B (en) * | 2012-10-22 | 2015-09-30 | 安徽省鸿运机械制造有限公司 | A kind of vehicle slow system of intelligence |
| CN102897156A (en) * | 2012-10-22 | 2013-01-30 | 安徽省鸿运机械制造有限公司 | Intelligent slowing system for vehicle |
| CN103010140A (en) * | 2012-12-29 | 2013-04-03 | 苏州市职业大学 | Ultrasonic vehicle induction safety deceleration system |
| CN104129377A (en) * | 2014-07-25 | 2014-11-05 | 杭州电子科技大学 | Initiative anticollision self-adapting fuzzy control method for vehicle |
| CN104129377B (en) * | 2014-07-25 | 2017-08-04 | 杭州电子科技大学 | Automobile active anticollision adaptive fuzzy control method |
| CN107618435A (en) * | 2016-07-15 | 2018-01-23 | 芜湖优必慧新能源科技有限公司 | A kind of preventing car from close trailing collision active safety system |
| CN106249739A (en) * | 2016-08-26 | 2016-12-21 | 广州小瓦智能科技有限公司 | Moving algorithm is hit in a kind of high-performance machine people's air defense |
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