CN202294492U - Intelligent control device for automobile braking lamp - Google Patents
Intelligent control device for automobile braking lamp Download PDFInfo
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- CN202294492U CN202294492U CN2011202416672U CN201120241667U CN202294492U CN 202294492 U CN202294492 U CN 202294492U CN 2011202416672 U CN2011202416672 U CN 2011202416672U CN 201120241667 U CN201120241667 U CN 201120241667U CN 202294492 U CN202294492 U CN 202294492U
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- brake lamp
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- displacement
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Abstract
The utility model discloses an intelligent control device for an automobile braking lamp for preventing rear vehicles from colliding. The device is characterized by comprising a central processing unit (CPU) (1), an accelerator pedal displacement sensor (2) and a braking lamp control circuit (3); the accelerator pedal displacement sensor (2) is used for acquiring accelerator pedal displacement change signals (4) and sending the signals to the CPU (1); the CPU (1) is used for calculating the accelerator pedal displacement change rate according to the accelerator pedal displacement change signals (4), wherein the accelerator pedal displacement change rate can be positive and negative, and the positive and negative change rates are respectively used for expressing that an accelerator pedal is treaded and loosened; and when the accelerator pedal displacement change rate reaches an accelerator pedal displacement change rate threshold value set in the CPU (1), namely a driver loosens the accelerator pedal very quickly, the CPU (1) considers that the driver is about to adopt emergency braking and then sends a control signal (8) to the braking lamp control circuit (3), and a braking lamp is lightened before the driver treads a braking pedal.
Description
Technical field
The utility model relates to the automobile active safety field, more specifically, relates to a kind of automobile brake lamp intelligence controlling device that prevents the back car to knock into the back.
Background technology
At present; Thereby traditional automobile brake lamp coutrol device is after chaufeur is stepped on brake pedal, to light brake lamp caution back car front truck to brake; The problem that exists like this is; When the front vehicle chaufeur saw that the front vehicles brake lamp is lighted, the front vehicles chaufeur had been implemented braking, and front vehicles has been in deceleration regime.Back car chaufeur being made the decision-making of slowing down according to the deceleration intention of the brake lamp perception front vehicles chaufeur of lighting, and after stepping on brake pedal and implementing braking action, front vehicle speed just begins to descend.Because front and back vehicle driver's the behavior of stepping on brake pedal exists certain time difference, forwardly the car brakeing initial stage, often greater than the speed of front vehicles, the spacing of front and back vehicle will reduce the speed of front vehicle.When the place ahead emergency brake of vehicle, when the too fast or following distance of the front vehicle speed of a motor vehicle was too near, rear-end collision took place in front vehicle easily.Thereby; Anticipation front vehicles braking intention has just appearred in the prior art wanting; Do not implement glancing impact at front truck and can light the device that brake lamp is reminded the front vehicle chaufeur, application number is promptly to disclose such brake lamp coutrol device in 201020299645.7 the Chinese patent document.This brake lamp coutrol device utilizes the acceleration pedal switch to judge whether bend the throttle of chaufeur, if do not step on, thinks that then chaufeur has the braking intention, thereby lights the bulb of brake snub lamp or all light, but brightness is lower.Yet; This device has been judged as the braking intention with " acceleration pedal is not stepped on " this behavior simply, is unscientific, because in actual driving procedure;, the chaufeur release the gas pedal do not continue to step on the situation of brake pedal after appearring in regular meeting, i.e. not braking intention of chaufeur.Though; This device adopts and light the brake snub lamp, perhaps lights all but the lower ways of brightness are distinguished the state of real glancing impact brake lamp; But so still might cause false-alarm, false alert; And need of the again study of other chaufeurs, otherwise whether really other chaufeurs can not distinguish front vehicles braking, and then influence the traffic safety of other chaufeurs brake lamp signal knowledge.In addition, the rate of change of the speed of a motor vehicle existed bigger difference when chaufeur carried out emergency braking and conventional brake, caused rear-end collision when vehicle carries out emergency braking forwardly often easily, and the effectively identified emergency braking of above-mentioned brake lamp coutrol device.Thereby above-mentioned brake lamp coutrol device has functional limitation, can not reduce the possibility that the back car knocks into the back well, can not really bring into play the effect that improves traffic safety.
Summary of the invention
The purpose of the utility model is exactly the deficiency that will overcome prior art, and a kind of automobile brake lamp intelligence controlling device that prevents the back car to knock into the back is provided.
Automobile brake lamp intelligence controlling device according to the utility model is characterized in that: comprise central process unit, acceleration pedal displacement pickup, brake lamp control circuit; Said acceleration pedal displacement pickup is gathered the change in displacement signal of pilot control acceleration pedal and is sent in the central process unit; Said central process unit is according to the change in displacement calculated signals acceleration pedal change in displacement rate of acceleration pedal, and acceleration pedal change in displacement rate has positive and negative branch, representes stepping on accelerator pedal and loose acceleration pedal respectively; When said acceleration pedal change in displacement rate arrives a certain threshold value that in central process unit, configures in advance; Be that the speed of loose acceleration pedal is when very fast; Said central process unit thinks that chaufeur is about to take the emergency braking behavior; Thereby sending controling instruction is given the brake lamp control circuit, before chaufeur is stepped on brake pedal, lights brake lamp.
Through this device; Adopt the acceleration pedal displacement pickup to obtain the acceleration pedal displacement signal; And will speed up the pedal displacement signal and send to central process unit and handle; Central process unit calculates acceleration pedal change in displacement rate through algorithm model, according to the emergency braking intention of the change rate forecast chaufeur of acceleration pedal displacement, effectively the emergency braking situation of identification of driver.Its scientific basis is to find that through a large amount of driving behavior collection experiments when chaufeur ran into emergency case suddenly in normal driving, right crus of diaphragm is release the gas pedal promptly, removes to step on brake pedal then; Show through the quantitative analysis driving behavior; Right crus of diaphragm is approximately 0.1-0.3 second from leaving acceleration pedal apace to the time of stepping on brake pedal; And the vehicle of running at high speed for the rear; Between second, its displacement can reach several meters even tens meters at this of short duration 0.1-0.3, and rear-end collision may take place front vehicle.This automobile brake lamp intelligence controlling device according to the utility model; Judge the emergency braking intention of chaufeur through acceleration pedal change in displacement rate; In advance 0.1-0.3 lights brake lamp second; Caution front vehicle chaufeur front vehicles is about to braking, thereby makes front vehicle take braking action in advance, reduces the possibility that knocks into the back greatly; And; This device adopts car speed sensor to introduce the influence of current vehicle speed state to emergency braking intention judgment threshold, and its judgement to the emergency braking intention is intelligent, flexibly, but not does not still step on brake pedal and judge the braking intention through stepping on brake pedal simply; Therefore; Science is more judged in prediction to emergency braking intention, thereby the generation of the phenomenon that prevents effectively to knock into the back improves safety traffic.
Preferably, said brake lamp control circuit is connected with former brake lamp control circuit is parallel, does not form interference mutually; And when said central process unit is lighted brake lamp through the brake lamp control circuit, it was lighted 1 second, then it is extinguished.
Preferably, said central process unit adopts flush bonding processor.Like this can be so that this device in the installation application that has vehicle now, adapts to the abominable working environment of vehicle.
Preferably, said central process unit adopts former car ECU as treater.Can when new car dispatches from the factory, just assemble this device like this, thereby improve safety traffic.
Preferably, said automobile brake lamp intelligence controlling device is used for automatic catch automobile.
Preferably; For manual-gear vehicle; Said automobile brake lamp intelligence controlling device also comprises clutch displacement sensor, and said central process unit receives the power-transfer clutch displacement signal that clutch displacement sensor sends, thereby judges that whether chaufeur is just at stepping on clutch; When said acceleration pedal change in displacement rate arrives the threshold value of in central process unit, choosing; And this moment, chaufeur did not have the behavior of stepping on clutch; Then said central process unit thinks that chaufeur is about to take the emergency braking behavior; Thereby sending controling instruction is given the brake lamp control circuit, before chaufeur is stepped on brake pedal, lights brake lamp.
Most preferably; Said automobile brake lamp intelligence controlling device also comprises car speed sensor; Said central process unit receives the GES that car speed sensor sends; And take the Different control strategy according to current different speed of a motor vehicle state, select different acceleration pedal change in displacement rate threshold values for use, thereby better brake lamp is controlled.
Obviously, the automobile brake lamp intelligence controlling device of the utility model has been realized science and the reliable prediction to chaufeur emergency braking intention.This device is according to the emergency braking intention of acceleration pedal change in displacement rate prediction chaufeur, but also the speed information that can further export according to car speed sensor adopts the Different control strategy; Set different acceleration pedal change in displacement rate threshold values; To improve to chaufeur emergency braking intention prediction accuracy,, chaufeur lights brake lamp before stepping on brake pedal, and warning in advance front vehicle chaufeur front vehicles is about to take braking action; Guiding front vehicle chaufeur is in time implemented braking action; To reduce the generation of rear-end collision, improve travel safety, improve safety traffic.
Description of drawings
Fig. 1 is the scheme drawing of most preferred embodiment of the automobile brake lamp intelligence controlling device of the utility model;
Fig. 2 is the fundamental diagram of the automobile brake lamp intelligence controlling device of the utility model shown in Figure 1.
Reference numeral:
1. central process unit 5. car speed sensors
2. acceleration pedal displacement pickup 6. former brake lamp control circuits
3. brake lamp control circuit 7. GESs
4. acceleration pedal change in displacement signal 8. control signals
The specific embodiment
Shown in Figure 1 is a most preferred embodiment of the utility model.
As shown in Figure 1, the automobile brake lamp intelligence controlling device of the utility model comprises central process unit 1, acceleration pedal displacement pickup 2, brake lamp control circuit 3 and car speed sensor 5; Said brake lamp control circuit 3 and former 6 parallel connections of brake lamp control circuit; Said acceleration pedal displacement pickup 2 is gathered acceleration pedal change in displacement signal 4 and is sent in the central process unit 1; Said central process unit 1 calculates acceleration pedal change in displacement rate according to acceleration pedal change in displacement signal 4, and acceleration pedal change in displacement rate has positive and negative branch, representes stepping on accelerator pedal and loose acceleration pedal respectively; Said central process unit 1 also receives the GES 7 that car speed sensor 5 sends, and takes the Different control strategy according to current different speed of a motor vehicle state, sets different acceleration pedal change in displacement rate threshold values; When said acceleration pedal change in displacement rate reaches the selected acceleration pedal change in displacement rate threshold value of central process unit 1; Be that the action of loose acceleration pedal is when very fast; Said central process unit 1 thinks that chaufeur is about to take the emergency braking behavior; Thereby transmit control signal 8 to brake lamp control circuit 3, before chaufeur is stepped on brake pedal, light brake lamp.
The automobile brake lamp intelligence controlling device principle of work of present embodiment is following:
Central process unit receives and handles the acceleration pedal change in displacement signal of acceleration pedal displacement pickup transmission, the GES of car speed sensor output; And take corresponding control strategies according to the current vehicle speed state of the GES representative after handling; Select different emergency braking intention judgment thresholds for use, simultaneously according to acceleration pedal change in displacement calculated signals acceleration pedal change in displacement rate, when said acceleration pedal change in displacement rate reaches emergency braking intention judgment threshold; Be that the action of chaufeur release the gas pedal is when very fast; Said central process unit thinks that chaufeur is about to take the emergency braking behavior, thereby transmits control signal to the brake lamp control circuit, lights brake lamp in advance; Caution front vehicle chaufeur front vehicles is about to braking, thereby actv. is avoided the generation of rear-end collision.
Adopt the automobile brake lamp intelligence controlling device of the utility model that the judgement that the chaufeur emergency braking is intended to is had intelligent, reliability:
Intelligent: owing to adopt car speed sensor; The automobile brake lamp intelligence controlling device of the utility model can change with the variation of current vehicle speed state the judgment threshold of emergency braking intention; To choosing of emergency braking intention judgment threshold is intelligent, flexibly, but not mono-, fixing.The setting that so just can make emergency braking intention judgment threshold is science more, and the generation of phenomenon improves safety traffic thereby actv. prevents to knock into the back.
Reliability: because the automobile brake lamp intelligence controlling device of the utility model is handled the behavior of acceleration pedal based on acceleration pedal change in displacement rate identification of driver; When the speed of chaufeur pine acceleration pedal is very fast; Represent that it is about to take the emergency braking behavior; More accurately and reliably, can effectively reduce the possibility that rear-end collision takes place to the judgement of emergency braking intention.
Though combine accompanying drawing that the description of the utility model is helped to understand the utility model above, the utility model never is limited to this illustrated embodiment.On the contrary, in claims institute restricted portion, can make various improvement and replacement to the utility model.
Claims (8)
1. an automobile brake lamp intelligence controlling device that prevents the back car to knock into the back is characterized in that: comprise central process unit (1), acceleration pedal displacement pickup (2), brake lamp control circuit (3);
Said acceleration pedal displacement pickup (2) is gathered acceleration pedal change in displacement signal (4) and is sent in the central process unit (1);
Said central process unit (1) calculates acceleration pedal change in displacement rate according to acceleration pedal change in displacement signal (4), and acceleration pedal change in displacement rate has positive and negative branch, representes stepping on accelerator pedal and loose acceleration pedal respectively;
When said acceleration pedal change in displacement rate reaches the acceleration pedal change in displacement rate threshold value that sets in the central process unit (1); Be that the action of chaufeur pine acceleration pedal is when very fast; Said central process unit (1) thinks that chaufeur is about to take emergency braking; Brake lamp control circuit (3) is given in transmit control signal thereby (8), before chaufeur is stepped on brake pedal, lights brake lamp.
2. automobile brake lamp intelligence controlling device as claimed in claim 1; It is characterized in that: said automobile brake lamp intelligence controlling device also comprises car speed sensor (5); Said central process unit (1) receives the GES (7) that car speed sensor (5) sends; And take the Different control strategy according to current different speed of a motor vehicle state, set different acceleration pedal change in displacement rate threshold values, thereby better brake lamp is controlled.
3. according to claim 1 or claim 2 automobile brake lamp intelligence controlling device, it is characterized in that: said brake lamp control circuit (3) is connected with former brake lamp control circuit (6) is parallel, does not form interference mutually.
4. automobile brake lamp intelligence controlling device as claimed in claim 3 is characterized in that: said central process unit (1) when lighting brake lamp, only makes it light through brake lamp control circuit (3) 1 second, then it is extinguished.
5. like the described automobile brake lamp intelligence controlling device of one of claim 1-4, it is characterized in that: said central process unit (1) adopts flush bonding processor.
6. like the described automobile brake lamp intelligence controlling device of one of claim 1-4, it is characterized in that: said central process unit (1) adopts former car ECU as treater.
7. like claim 5 or 6 described automobile brake lamp intelligence controlling devices, it is characterized in that: said automobile brake lamp intelligence controlling device is used for automatic catch automobile.
8. like claim 5 or 6 described automobile brake lamp intelligence controlling devices; It is characterized in that: for manual-gear vehicle; Said automobile brake lamp intelligence controlling device also comprises clutch displacement sensor; Said central process unit (1) receives the power-transfer clutch displacement signal that clutch displacement sensor sends, thereby judges that whether chaufeur is just at stepping on clutch; When said acceleration pedal change in displacement rate reaches the acceleration pedal change in displacement rate threshold value that sets in the central process unit (1); And this moment, chaufeur did not have the behavior of stepping on clutch; Then said central process unit (1) thinks that chaufeur is about to take the emergency braking behavior; Brake lamp control circuit (3) is given in transmit control signal thereby (8), before chaufeur is stepped on brake pedal, lights brake lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202416672U CN202294492U (en) | 2011-07-11 | 2011-07-11 | Intelligent control device for automobile braking lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202416672U CN202294492U (en) | 2011-07-11 | 2011-07-11 | Intelligent control device for automobile braking lamp |
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| Publication Number | Publication Date |
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| CN202294492U true CN202294492U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202416672U Expired - Fee Related CN202294492U (en) | 2011-07-11 | 2011-07-11 | Intelligent control device for automobile braking lamp |
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| CN (1) | CN202294492U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343860A (en) * | 2011-07-11 | 2012-02-08 | 北京理工大学 | Intelligent control device for automobile brake lamp |
| CN104015655A (en) * | 2014-05-29 | 2014-09-03 | 北京恒华伟业科技股份有限公司 | Vehicle braking pre-warning system and method |
| CN104539279A (en) * | 2014-12-19 | 2015-04-22 | 乐清市裕汇电器电子有限公司 | Intelligent double-contact brake lamp switch |
| CN105835879A (en) * | 2015-01-28 | 2016-08-10 | 本田技研工业株式会社 | Travel control device for vehicle |
-
2011
- 2011-07-11 CN CN2011202416672U patent/CN202294492U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343860A (en) * | 2011-07-11 | 2012-02-08 | 北京理工大学 | Intelligent control device for automobile brake lamp |
| CN104015655A (en) * | 2014-05-29 | 2014-09-03 | 北京恒华伟业科技股份有限公司 | Vehicle braking pre-warning system and method |
| CN104539279A (en) * | 2014-12-19 | 2015-04-22 | 乐清市裕汇电器电子有限公司 | Intelligent double-contact brake lamp switch |
| CN104539279B (en) * | 2014-12-19 | 2019-01-22 | 乐清市裕汇电器电子有限公司 | A kind of intelligence double-contact braking light switch |
| CN105835879A (en) * | 2015-01-28 | 2016-08-10 | 本田技研工业株式会社 | Travel control device for vehicle |
| CN105835879B (en) * | 2015-01-28 | 2018-07-24 | 本田技研工业株式会社 | Vehicle running control device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20130711 |