CN101554836A - Speed limit sensing and vehicle speed control device - Google Patents
Speed limit sensing and vehicle speed control device Download PDFInfo
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- CN101554836A CN101554836A CNA2009100986772A CN200910098677A CN101554836A CN 101554836 A CN101554836 A CN 101554836A CN A2009100986772 A CNA2009100986772 A CN A2009100986772A CN 200910098677 A CN200910098677 A CN 200910098677A CN 101554836 A CN101554836 A CN 101554836A
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Abstract
The invention discloses a speed limit sensing and vehicle speed control device which comprises a speed limit signal generation and on-vehicle receiver, a vehicle speed sensor, an over-speed prompt and control device and an ECU, wherein the signal generation and on-vehicle receiver comprises a speed limit launcher and an on-vehicle GPS, and the over-speed prompt and control device comprises an air throttle control motor and an accelerator pedal sensor; the on-vehicle GPS, the vehicle speed sensor, the air throttle control motor and the accelerator pedal sensor are all connected with the ECU, the speed limit launcher launches and edits GPS signals with road speed limit information, the on-vehicle GPS receives the GPS signals and sends the GPS signals to the ECU, and when the current vehicle speed which is transmitted to the ECU by the vehicle speed sensor is larger than the road speed limit, the ECU controls the air throttle control motor to run and then controls the current vehicle speed. The device realizes reasonable control of existing devices by electric control to realize the control of vehicle speed limit, and utilizes precise positioning of GPS to realize precise sensing and receiving of speed limit.
Description
Technical field
The present invention relates to a kind of car speed control setup, be specially a kind of speed limit sensing and speed controller.
Background technology
Along with the development of auto-industry and expressway construction, annual because the personal casualty number that various traffic accidents cause is surprising, caused enormous economic loss.According to statistics, the major cause that causes various traffic accidents is the overload of vehicle and drives over the speed limit, and latter's randomness is very big, entangle the chapter difficulty, and since Chinese Highway Conditions complexity, the maximum speed difference that the highway of different brackets allows, and existing speed-limit device is difficult to adapt to this situation.At this situation, the device that exploitation has overspeed alarming and vehicle speed control system seems very important to traffic safety and automatic steering.
Existing many at present research reports about car speed restriction aspect, such as:
Publication number is the utility model patent of CN2167886, a kind of automobile speed limit device is disclosed, it can be according to the speed limit signal volitional check speed of a motor vehicle that receives, comprise receiving processor and actuating unit, receiving processor comprises radio receiver, speed sensor, one-chip computer, demoder, electric pressure converter and comparator etc., actuating unit mainly is a retractor device that is driven by stepping motor, actuating unit is arranged on the acceleration cable, thereby the size of the length control carburetion moral valve opening by changing acceleration cable reaches the speed limit purpose.
Publication number is the utility model patent of CN200979747, discloses a kind of power actuated vehicle automatic speed limit device, buries inductor and radio data feedway on the speed limit highway section underground; Radio data receiving system and speed limit valve body are installed on automobile; The middle axle center of speed limit valve body with handle motor and link to each other, the manipulation motor links to each other with the radio data receiving system, the speed limit valve body be installed on carburettor acclerating section valve on the driving engine above or below; By the rotating speed that above structure can Control of Automobile be started, can keep again that the former car power of automobile is constant, easy driving freely.
But great majority all at be carbureted engine and mechanical type acceleration pedal, and along with development of electronic technology, increasing Eltec is applied on the automobile, and development tendency in the future must be that electric-controlled type driving engine and electronic accelerator pedal replace conventional device.Existing restricting signal has the speed limitation board of physics formula, and it is subjected to can be subjected to a great extent the influence of weather conditions, and wireless launcher then has corresponding blind area and crosses, and can influence corresponding signal and receive.
Summary of the invention
The invention provides a kind of speed limit sensing and speed controller, is to be primarily aimed at electronic throttle and electronic accelerator pedal design-calculated speed control, and utilizes global positioning system (GPS) accurate in locating to realize the accurate induction and the reception of speed limit.
The inventive system comprises restricting signal generation and vehicle-mounted receiver apparatus, car speed sensor, overspeed alarm and control setup and electronic control unit (Electronic Control Unit, be called for short ECU), described signal takes place and vehicle-mounted receiver apparatus comprises speed limit feedway and vehicle GPS; Described overspeed alarm and control setup comprise throttle-valve control motor and accelerator pedal sensor; Vehicle GPS, car speed sensor, throttle-valve control motor and accelerator pedal sensor all insert ECU;
The road speed-limiting messages is edited on the GPS map in advance, speed limit feedway emission editor has the gps signal of road speed-limiting messages, vehicle GPS is passed to ECU after receiving and editing the gps signal that the road speed-limiting messages is arranged, the current vehicle speed of passing to ECU when car speed sensor is during greater than the road speed limit, ECU notes down down the electric signal I of accelerator pedal sensor at this moment, control the counter-rotating of throttle-valve control motor simultaneously, slow down; If the electric signal of current accelerator pedal sensor is less than I, motor recovers just to change, until current vehicle speed smaller or equal to the road speed limit; If the electric signal of current accelerator pedal sensor is greater than I, the throttle-valve control motor continues counter-rotating, until current vehicle speed smaller or equal to the road speed limit.
The signal of wireless launcher emission produces unavoidably and intersects or the blind area, influences the normal reception of limiting vehicle speed, can't make rational use of resources.Therefore the present invention adopts following design plan: utilize existing GPS map, when editor's road section information, the speed-limiting messages in affix highway section makes vehicle can receive the different speed-limiting messages in each highway section exactly, no longer has the blind area and the cross-cutting issue of signal.
The road restricting signal that has had GPS to be provided with in advance, vehicle GPS just can be in the speed limit highway section or four corners receive corresponding restriction speed per hour, bring great convenience for travelling of vehicle.
The GPS restricting signal the time can also pre-set the road speed limit of corresponding vehicle editor, can replace corresponding vehicle with digital signal, such as representing lorry with 1,2 represent car etc., and how many its speed limits of separate provision is.And accordingly when vehicle GPS default, should set and the cooresponding vehicle code name of GPS feedway, when obtaining corresponding speed limit, can well be mated.
After obtaining corresponding road restricting signal, be sent to ECU immediately, ECU can obtain to correspond to the place road speed limit Vs of own vehicle in the very first time.
The GPS accurate positioning, road information is clear, can utilize resource to greatest extent, and road speed-limiting messages accurately can be provided.
Described car speed sensor is the usual means of existing automobile, and the more of usefulness is magneto-electric car speed sensor and Hall-type car speed sensor, comes by pre-determined transformational relation by the measurement to vehicle wheel rotational speed, is converted to the current vehicle speed V of vehicle.
The effect of throttle gate is the charge flow rate of control driving engine, the operating condition of decision driving engine, and chaufeur comes the control node valve opening by the operation acceleration pedal.Accelerator pedal sensor is one does not have the bipotential device sensor that gets an electric shock, the variation of accelerator pedal position can cause the linear change of respective resistivity values, and produce different electric signal, and give ECU with this electric signal, ECU comes throttle gate is regulated by control throttle-valve control motor according to the size of electric signal, to arrive the speed of a motor vehicle that the driver wants.
Described ECU also can be connected with loud speaker, and during greater than road speed limit Vs, loud speaker is opened at current vehicle speed V, to remind the driver.
After ECU obtains road speed limit Vs and two corresponding signals of vehicle present speed V, handle accordingly immediately, vehicle velocity V and road speed limit Vs are compared;
When V＜=Vs, all are normal;
And when V＞Vs, corresponding device thereof is started working.Owing to do passing maneuver through regular meeting, the hypervelocity phenomenon of short-term just will certainly appear, so leave certain hypervelocity scope to car at the vehicle of travels down.With hypervelocity scope location 120%Vs (during practical application the highest hypervelocity scope can be set), when Vs＜V≤120%Vs,, send caution such as first hypothesis, illustrate and exceed the speed limit to the driver by ECU control loudspeaker sounding according to the actual conditions on the road; When current vehicle speed V＜=speed limit Vs, loud speaker quits work; And when V＞120%Vs, ECU will intervene the speed of a motor vehicle, promptly throttle gate is controlled, and controls the speed of a motor vehicle.
This device is realized the control of limiting vehicle speed by the automatically controlled reasonable control that has realized existing apparatus.To arteries of communication flourishing day by day today, the speed limit of vehicle can very big limit reduces the economic loss brought because of traffic accident, when also better having improved vehicle ' to self and to the safety of surrounding environment.
Description of drawings
Fig. 1 is apparatus of the present invention scheme drawing;
Fig. 2 is apparatus of the present invention workflow diagram.
The specific embodiment
Device as shown in Figure 1, comprise restricting signal generation and vehicle-mounted receiver apparatus, car speed sensor, overspeed alarm and control setup and ECU, signal takes place and vehicle-mounted receiver apparatus comprises speed limit feedway 1 and vehicle GPS 2, speed limit feedway 1 is installed in the speed limit highway section, and the emission editor has the GPS map signal of road speed-limiting messages; Overspeed alarm and control setup comprise throttle-valve control motor 6 and accelerator pedal sensor 4; Vehicle GPS 2, car speed sensor 5, throttle-valve control motor 6 and accelerator pedal sensor 4 all insert ECU3.
Car speed sensor adopts the Hall car speed sensor, and its structure mainly is made up of gear ring, Hall element, permanent magnet and electronic circuit etc.Principle of work is that the permanent magnet magnetic force line passes Hall element and leads to the triggering gear ring, at this moment gear ring is equivalent to a collection chinaware, cause the changes of magnetic field of passing Hall element by the gear ring rotation, thereby cause that Hall voltage changes, and is transformed into standard impulse voltage by electronic circuit at last.One nonmagnetic disk is installed on rotation shaft of wheel, equidistant stickup upper magnetic steel at the edge of disk, magnet steel is the little magnetic patch that permanent magnet is divided into, and has the magnetic of robbing.Hall element is fixed on apart from magnetic patch plane 1mm～3mm place, and when magnetic patch and Hall element relative position changed, the magnetic-field intensity by the Hall element magnetic surface will change.
Along with the rotation of disk, magnetic-field intensity is with regard to the variation of generating period.When magnetic patch when the Hall element, the magnetic field of passing Hall element is stronger, when Hall element was between magnetic patch, magnetic line of force disperseed, the Hall element output low level; When field weakening, Hall element output high level makes in the wheel process, Hall switch output consecutive pulses signal.The amplification shaping and corresponding conversion that obtain impulse singla are all finished by ECU, and obtain corresponding vehicle velocity V.
The road restricting signal Vs of speed limit feedway emission passes to ECU after being received by vehicle GPS, and the vehicle current vehicle speed V that car speed sensor obtains also passes to ECU.
Current vehicle speed V is during greater than 120%Vs, ECU notes the acceleration pedal electric signal I of this moment, and ECU control throttle-valve control motor with less acceleration/accel (if acceleration/accel is too big, can cause the unexpected deceleration of vehicle, may cause the generation of traffic accident) counter-rotating (promptly rotating towards the direction of slowing down), come work according to the situation of change of accelerator pedal position then.The electric signal that transmits when accelerator pedal position sensor is bigger than the I of record, that ECU continues the counter-rotating of control throttle-valve control motor, continue to slow down, even the driver continues bend the throttle, because motor no longer forward (acceleration direction) rotates, so throttle opening can not increase, so the speed of a motor vehicle can not continue to increase.And ECU is analyzing V and I always.The electric signal that transmits when accelerator pedal position sensor is during less than the electric signal I of the record 20% time of exceeding the speed limit before, and it is normal that the throttle-valve control motor recovers.If the electric signal that accelerator pedal position sensor transmitted is always greater than I, ECU can recover normal when vehicle velocity V＜=Vs so.And can compare analysis with I to the electric signal I ' that accelerator pedal position sensor transmitted of this moment, if the difference of present electric signal I ' and the electric signal I of record (I '-I)＞during setting value, ECU still can not come work according to the signal that accelerator pedal position sensor transmits, slowly just change but control the throttle-valve control motor, prevent that the driver does not comprehend when motor reverses, continue stepping on accelerator pedal, recover just often and work as ECU, the speed of a motor vehicle increases severely, and is easy to cause traffic accident.
During this period, loud speaker is being worked always, the prompting driver, and after the moving velocity of vehicle was less than the road speed limit, loud speaker just quit work.
Claims (2)
1, a kind of speed limit sensing and speed controller, it is characterized in that: comprise restricting signal generation and vehicle-mounted receiver apparatus, car speed sensor, overspeed alarm and control setup and electronic control unit, described signal takes place and vehicle-mounted receiver apparatus is made up of speed limit feedway and vehicle GPS; Described overspeed alarm and control setup comprise throttle-valve control motor and accelerator pedal sensor; Vehicle GPS, car speed sensor, throttle-valve control motor and accelerator pedal sensor all insert electronic control unit;
Speed limit feedway emission editor has the gps signal of road speed-limiting messages, vehicle GPS is passed to electronic control unit after receiving gps signal, the current vehicle speed of passing to electronic control unit when car speed sensor is during greater than the road speed limit, electronic control unit is noted down down at this moment, and the electric signal of accelerator pedal sensor is I, control the counter-rotating of throttle-valve control motor simultaneously, slow down; If the electric signal of current accelerator pedal sensor is less than I, motor recovers just to change, until current vehicle speed smaller or equal to the road speed limit; If the electric signal of current accelerator pedal sensor is greater than I, the throttle-valve control motor continues counter-rotating, until current vehicle speed smaller or equal to the road speed limit.
2, speed limit sensing as claimed in claim 1 and speed controller is characterized in that: described ECU is connected with loud speaker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100986772A CN101554836B (en) | 2009-05-19 | 2009-05-19 | Speed limit sensing and vehicle speed control device |
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| CN2009100986772A CN101554836B (en) | 2009-05-19 | 2009-05-19 | Speed limit sensing and vehicle speed control device |
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| CN101554836A true CN101554836A (en) | 2009-10-14 |
| CN101554836B CN101554836B (en) | 2011-06-29 |
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| CN2009100986772A Expired - Fee Related CN101554836B (en) | 2009-05-19 | 2009-05-19 | Speed limit sensing and vehicle speed control device |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887643A (en) * | 2010-06-18 | 2010-11-17 | 北京理工大学 | Vehicular intelligent speed-limiting device |
| CN102490607A (en) * | 2011-11-25 | 2012-06-13 | 杭州鸿泉数字设备有限公司 | Energy-saving realizing device of electronic throttle |
| CN102562324A (en) * | 2012-01-05 | 2012-07-11 | 江苏技术师范学院 | Training car speed limiting system |
| EP2514652A1 (en) | 2011-04-14 | 2012-10-24 | Thomas Rastija | Method and device for limiting the speed of a motor vehicle |
| CN103226895A (en) * | 2012-01-26 | 2013-07-31 | 罗伯特·博世有限公司 | A method for providing speed alarm information for a navigation apparatus |
| CN103318025A (en) * | 2013-06-08 | 2013-09-25 | 浙江科技学院 | Dynamic real-time speed-limiting system for electronic throttle valve vehicle and method thereof |
| CN103538478A (en) * | 2013-10-29 | 2014-01-29 | 苏州市职业大学 | Vehicle speed limiting system |
| CN103742279A (en) * | 2013-12-25 | 2014-04-23 | 东风汽车公司 | Vehicle intelligent speed limit system and method |
| CN103818258A (en) * | 2014-02-26 | 2014-05-28 | 厦门金龙联合汽车工业有限公司 | Automatic vehicle speed limit control system and control method |
| CN103863117A (en) * | 2014-03-13 | 2014-06-18 | 小米科技有限责任公司 | Method and device for limiting speed of car |
| CN104228581A (en) * | 2014-10-09 | 2014-12-24 | 重庆电子工程职业学院 | Vehicle forced speed limiting method |
| CN104228609A (en) * | 2014-09-25 | 2014-12-24 | 吉林大学 | Vehicle speed control method for wheel hub motor-driven vehicle |
| CN104590022A (en) * | 2015-01-29 | 2015-05-06 | 中国农业大学 | Vehicle accelerator active intervention safety control system and control method of vehicle accelerator active intervention safety control system |
| CN104781123A (en) * | 2012-11-27 | 2015-07-15 | 日产自动车株式会社 | Vehicle acceleration-suppression device, and vehicle acceleration-suppression method |
| CN105083013A (en) * | 2015-09-16 | 2015-11-25 | 重庆大学 | Self-adaption forced speed limit system based on real-time road information and control method thereof |
| US9268026B2 (en) | 2012-02-17 | 2016-02-23 | Samsung Electronics Co., Ltd. | Method and apparatus for location positioning in electronic device |
| CN105946620A (en) * | 2016-06-07 | 2016-09-21 | 北京新能源汽车股份有限公司 | Electric automobile and active speed-limiting control method and system thereof |
| CN106183810A (en) * | 2015-05-26 | 2016-12-07 | 丰田自动车株式会社 | speed limiting system |
| CN107139723A (en) * | 2017-04-21 | 2017-09-08 | 奇瑞汽车股份有限公司 | The method and apparatus for controlling the travel speed of vehicle |
| CN108407615A (en) * | 2016-08-16 | 2018-08-17 | 董润 | The control method of the control system of restricted speed |
| CN106240365B (en) * | 2015-06-04 | 2019-08-06 | 丰田自动车株式会社 | Speed Limitation Devices |
| CN110962596A (en) * | 2019-12-20 | 2020-04-07 | 奇瑞汽车股份有限公司 | Vehicle speed control method and device of automobile and storage medium |
| CN111483444A (en) * | 2019-01-29 | 2020-08-04 | 郑州宇通客车股份有限公司 | Vehicle, brake control method and device |
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| CN1046630A (en) * | 1989-04-22 | 1990-10-31 | 庄风仪 | Overspeed of vehicle and inertia automatic monitoring instrument |
| CN2167886Y (en) * | 1993-05-11 | 1994-06-08 | 张然 | Overrunning governor for automobile |
| CN1811848A (en) * | 2006-03-01 | 2006-08-02 | 四川交通职业技术学院 | Method and system for vehicle speed limiting and safety space controlling |
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2009
- 2009-05-19 CN CN2009100986772A patent/CN101554836B/en not_active Expired - Fee Related
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| CN101887643A (en) * | 2010-06-18 | 2010-11-17 | 北京理工大学 | Vehicular intelligent speed-limiting device |
| EP2514652A1 (en) | 2011-04-14 | 2012-10-24 | Thomas Rastija | Method and device for limiting the speed of a motor vehicle |
| CN102490607A (en) * | 2011-11-25 | 2012-06-13 | 杭州鸿泉数字设备有限公司 | Energy-saving realizing device of electronic throttle |
| CN102562324A (en) * | 2012-01-05 | 2012-07-11 | 江苏技术师范学院 | Training car speed limiting system |
| CN102562324B (en) * | 2012-01-05 | 2014-05-07 | 江苏理工学院 | Training car speed limiting system |
| CN103226895A (en) * | 2012-01-26 | 2013-07-31 | 罗伯特·博世有限公司 | A method for providing speed alarm information for a navigation apparatus |
| US9268026B2 (en) | 2012-02-17 | 2016-02-23 | Samsung Electronics Co., Ltd. | Method and apparatus for location positioning in electronic device |
| CN104781123A (en) * | 2012-11-27 | 2015-07-15 | 日产自动车株式会社 | Vehicle acceleration-suppression device, and vehicle acceleration-suppression method |
| CN104781123B (en) * | 2012-11-27 | 2016-08-24 | 日产自动车株式会社 | Vehicle is with accelerating restraining device and vehicle with accelerating suppressing method |
| CN103318025A (en) * | 2013-06-08 | 2013-09-25 | 浙江科技学院 | Dynamic real-time speed-limiting system for electronic throttle valve vehicle and method thereof |
| CN103318025B (en) * | 2013-06-08 | 2016-08-10 | 浙江科技学院 | A kind of electronic throttle vehicle dynamic real-time speed limit system and method |
| CN103538478A (en) * | 2013-10-29 | 2014-01-29 | 苏州市职业大学 | Vehicle speed limiting system |
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| CN103818258A (en) * | 2014-02-26 | 2014-05-28 | 厦门金龙联合汽车工业有限公司 | Automatic vehicle speed limit control system and control method |
| CN103863117A (en) * | 2014-03-13 | 2014-06-18 | 小米科技有限责任公司 | Method and device for limiting speed of car |
| CN104228609A (en) * | 2014-09-25 | 2014-12-24 | 吉林大学 | Vehicle speed control method for wheel hub motor-driven vehicle |
| CN104228581A (en) * | 2014-10-09 | 2014-12-24 | 重庆电子工程职业学院 | Vehicle forced speed limiting method |
| CN104590022B (en) * | 2015-01-29 | 2017-02-22 | 中国农业大学 | Vehicle accelerator active intervention safety control system and control method of vehicle accelerator active intervention safety control system |
| CN104590022A (en) * | 2015-01-29 | 2015-05-06 | 中国农业大学 | Vehicle accelerator active intervention safety control system and control method of vehicle accelerator active intervention safety control system |
| CN106183810A (en) * | 2015-05-26 | 2016-12-07 | 丰田自动车株式会社 | speed limiting system |
| CN106240365B (en) * | 2015-06-04 | 2019-08-06 | 丰田自动车株式会社 | Speed Limitation Devices |
| CN105083013A (en) * | 2015-09-16 | 2015-11-25 | 重庆大学 | Self-adaption forced speed limit system based on real-time road information and control method thereof |
| CN105946620A (en) * | 2016-06-07 | 2016-09-21 | 北京新能源汽车股份有限公司 | Electric automobile and active speed-limiting control method and system thereof |
| CN108407615A (en) * | 2016-08-16 | 2018-08-17 | 董润 | The control method of the control system of restricted speed |
| CN108407616A (en) * | 2016-08-16 | 2018-08-17 | 董润 | Using the control system of the restricted speed of information process unit |
| CN107139723A (en) * | 2017-04-21 | 2017-09-08 | 奇瑞汽车股份有限公司 | The method and apparatus for controlling the travel speed of vehicle |
| CN111483444A (en) * | 2019-01-29 | 2020-08-04 | 郑州宇通客车股份有限公司 | Vehicle, brake control method and device |
| CN111483444B (en) * | 2019-01-29 | 2021-07-16 | 郑州宇通客车股份有限公司 | Vehicle, brake control method and device |
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