CN203590571U - Fault alarm device of automobile break lamp - Google Patents
Fault alarm device of automobile break lamp Download PDFInfo
- Publication number
- CN203590571U CN203590571U CN201320619733.4U CN201320619733U CN203590571U CN 203590571 U CN203590571 U CN 203590571U CN 201320619733 U CN201320619733 U CN 201320619733U CN 203590571 U CN203590571 U CN 203590571U
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- circuit
- brake lamp
- automobile
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- operational amplification
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a fault alarm device of an automobile break lamp. An automobile power supply supplies power for the fault alarm device. The fault alarm device comprises a first brake lamp (M1), a second brake lamp (M2), a work indication circuit, a voltage comparison circuit, and an alarm circuit. The voltage comparison circuit comprises a voltage division circuit, a first clamping circuit, a second clamping circuit, and an operation and amplification circuit. The fault alarm device is simple in structure; practical and reliable; suitable for various vehicles, capable of monitoring a work state of the automobile break lamp automatically, and sending out a voice or light alarm for the break lamp and the circuit of the break lamp. At the same time, the break lamp can be used as an automobile break lamp indication lamp, and carry out detection for break lamp, fuse and circuit faults, so that a driver is allowed to know about the work state in real time according to the sound and light signal of the alarming device, and therefore rear collision accidents caused by break lamp fault are reduced.
Description
Technical field
The utility model relates to a kind of automobile brake lamp accident warning device.
Background technology
As everyone knows, stop, tail and number plate light is one of of paramount importance signal lamp of automobile, and it is closely related with the safety of driving.Once Brake lamp breaks down, the braking deceleration information of front vehicles cannot pass to the vehicle travelling in the wings timely and accurately, in addition Brake lamp is arranged on the tailstock, and driver is difficult for discovering, often because emergency processing causes the traffic accident of knocking into the back and bumping against not in time.
At present, all kinds of visitors, lorry and most car all lack effectively monitoring to Brake lamp fault, along with the develop rapidly of Domestic Automotive Industry and the significantly raising of automobile pollution, rear-end collision traffic accident takes place frequently, caused a large amount of casualties and property loss, made the security performance of automobile and relevant prevention device day by day be subject to people's attention.In order to improve the fail safe of Vehicle Driving Cycle, some automaker has installed braking indicator light on panel board, but can only show brake line and braking light switch well whether, the working condition that can not comprehensively and objectively reflect Brake lamp, even if occurred that the faults such as Brake lamp bad earth, bulb-damage or line end open circuit cause one or both sides Brake lamp not lighted, and braking indicator light is lighted as usual.At present, the Brake lamp failure warning system complex structure that some vehicle is used, and be vulnerable to electromagnetic interference, functional reliability is poor; Also have some vehicles to use reed switch formula Brake lamp failure alarm circuit, the fault that can only occur a side Brake lamp is reported to the police, and cannot report to the police to both sides Brake lamp fault, for hidden danger has been buried in safe driving.
Therefore, in order to reduce the incidence of rear-end collision accident, improve travel safety, be extremely necessary to design a kind of automobile brake lamp accident warning device of easy to use, dependable performance.
Summary of the invention
The purpose of this utility model is to provide a kind of automobile brake lamp accident warning device.
A kind of automobile brake lamp accident warning device, by automobile power source, powered, comprise the first Brake lamp (M1), the second Brake lamp (M2), working indicating, voltage comparator circuit, warning circuit, described voltage comparator circuit comprises bleeder circuit, the first clamp circuit, the second clamp circuit and operational amplification circuit;
The input of described bleeder circuit is coupled to described automobile power source, and output is connected to the 3rd input, the four-input terminal of described operational amplification circuit;
The first end of described the first clamp circuit is connected with the second end of described the first Brake lamp (M1), the first input end of described operational amplification circuit, its second end bonding;
The first end of described the second clamp circuit is connected with the second end of described the second Brake lamp (M2), the second input of described operational amplification circuit, its second end bonding;
The power end of described operational amplification circuit is coupled to described automobile power source, earth terminal bonding, and the first output and the second output are connected to described warning circuit.
Preferably, described bleeder circuit comprises the first resistance (R1) and the second resistance (R2), the first end of described the first resistance (R1) is coupled to described automobile power source, input as described bleeder circuit, the second end is connected with the first end of described the second resistance (R2), as the output of described bleeder circuit; The second end bonding of described the second resistance (R2).
Preferably, described the first clamp circuit comprises the first diode (VD1), and the anode of described the first diode (VD1) is as the first end of described the first clamp circuit, and negative electrode is as the second end of described the first clamp circuit;
Described the second clamp circuit comprises the second diode (VD2), and the anode of described the second diode (VD2) is as the first end of described the second clamp circuit, and negative electrode is as the second end of described the second clamp circuit.
Preferably, described operational amplification circuit comprises operational amplifier LM358,3,5,2,6 pin of described operational amplifier LM358 are respectively as first, second, third, fourth input of described operational amplification circuit, 1,7 pin are respectively as first, second output of described operational amplification circuit, 8 pin are as the power end of described operational amplification circuit, and 4 pin are as the earth terminal of described operational amplification circuit.
Preferably, described warning circuit comprises the 3rd resistance (R3), gating circuit and buzzer (BL), and the first end of described the 3rd resistance (R3) is coupled to described automobile power source, and the second end is connected to the first end of described buzzer (BL); First, second input of described gating circuit is connected to respectively first, second output of described operational amplification circuit, and output is connected to the second end of described buzzer (BL).
Further preferably, described gating circuit comprises the 3rd diode (VD3) and the 4th diode (VD4), the anode of described the 4th diode (VD4) is connected with the second end of the anode of described the 3rd diode (VD3), described buzzer (BL), and negative electrode is connected with the first output of described operational amplification circuit; Described the 3rd negative electrode of diode (VD3) and the second output of described operational amplification circuit are connected.
Preferably, described working indicating comprises the 4th resistance (R4) and light-emitting diode, and the first end of described the 4th resistance (R4) is coupled to described automobile power source, and the second end is connected to the anode of described light-emitting diode, the negative ground of described light-emitting diode.
The beneficial effects of the utility model are:
1, simple in structure, practical reliable, be applicable to various vehicles;
2, the operating state of automobile brake lamp can be automatically monitored, to Brake lamp and line fault thereof, sound and light alarm can be sent.
3, can be used as automobile brake indicator light, and can detect braking light switch, fuse and line fault thereof.
4, in Vehicle Driving Cycle process, driver can grasp in real time by the sound and light signal of warning device the operating state of Brake lamp, without other people, assists or the inspection of getting off, easy to use.
Accompanying drawing explanation
Fig. 1 is basic circuit diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
This automobile brake lamp accident warning device comprises the first Brake lamp M1, the second Brake lamp M2, working indicating, voltage comparator circuit, warning circuit, without additional power source, by automobile power source Vcc, through fuse FU, braking light switch F, to it, is powered.
Voltage comparator circuit comprises bleeder circuit, the first clamp circuit, the second clamp circuit and operational amplification circuit; Wherein,
Bleeder circuit comprises that the first end of the first resistance R 1 and the second resistance R 2, the first resistance R 1 is coupled to described automobile power source Vcc, and the second end is connected with the first end of the second resistance R 2; The second end bonding of the second resistance R 2;
The first clamp circuit comprises the first diode VD1, the anode of the first diode VD1 is as the first end of the first clamp circuit, be connected with the second end of the first Brake lamp M1, the first input end of operational amplification circuit, negative ground is as the second end of the first clamp circuit;
The second clamp circuit comprises the second diode VD2, the anode of the second diode VD2 is as the first end of the second clamp circuit, be connected with the second end of the second Brake lamp M2, the second input of operational amplification circuit, negative ground is as the second end of the second clamp circuit;
Operational amplification circuit comprises operational amplifier LM358, and 3,5 pin of operational amplifier LM358, respectively as the first and second inputs of operational amplification circuit, are connected to respectively the second end of the first Brake lamp M1 and the second end of the second Brake lamp M2; 2,6 pin, respectively as the third and fourth input of operational amplification circuit, are connected to the common port of the first resistance R 1 and the second resistance R 2 jointly; 1,7 pin, respectively as first, second output of operational amplification circuit, are connected to warning circuit jointly; 8 pin, as the power end of operational amplification circuit, are coupled to automobile power source Vcc; 4 pin bonding are as the earth terminal of described operational amplification circuit.Operational amplifier, by reading, compare the magnitude of voltage of forward and reverse input signal, is realized the variation of output voltage.Warning circuit comprises the 3rd resistance R 3, gating circuit and buzzer BL.Wherein,
The first end of the 3rd resistance R 3 is coupled to automobile power source Vcc, and the second end is connected to the first end of buzzer BL;
Described gating circuit comprises the 3rd diode VD3 and the 4th diode VD4, the negative electrode of the 3rd diode VD3 and the 4th diode VD4 is respectively as first, second input of gating circuit, first, second output (being 7,1 pin of operational amplifier) that is connected to operational amplification circuit, output is connected to the second end of described buzzer BL; The second end that the anode of the 3rd diode VD3 and the 4th diode VD4 is connected to buzzer BL is jointly connected, as the output of gating circuit;
Once Brake lamp circuit breaks down, the buzzer BL warning of sounding.Working indicating comprises the 4th resistance R 4 and LED, and the first end of the 4th resistance R 4 is coupled to automobile power source Vcc, and the second end is connected to the anode of LED, the negative ground of LED.。Because LED is with Brake lamp synchronous working, thereby working indicating can be used as braking indicator light, also can be used for the monitoring of automobile power source Vcc, brake switch F, fuse work FU situation.
In this device, the first described resistance R 1 and the 4th R4 select the carbon film resistor of 1/4 W, 1K Ω, the 2nd R2 selects the carbon film resistor of 1/4 W, 27K Ω, the 3rd R3 selects the carbon film resistor of 1/4 W, 5.1 Ω, first to fourth diode VDl ~ VD4 selects 1N4001 or 1N4002 type silicon rectifier diode, buzzer BL selects intermittently active buzzer of 12V, HYD-4216W, and LED is selected the common light-emitting diode of 2EF401 type, and operational amplifier is selected LM358 type.
Operation principle of the present utility model:
Operational amplifier LM358 inside have two independently, the dual operational amplifier of high-gain, internal frequency compensation, it is the core component of this warning device, by reading, compare the magnitude of voltage of forward and reverse input signal, realize the variation of output voltage, thereby control the work of buzzer BL, the warning of Brake lamp fault is realized after the applied signal voltage value by operational amplifier LM358 comparison bipod.
When the both sides of automobile Brake lamp M1 and M2 and circuit thereof are when normal, 3 pin of operational amplifier LM358 and the magnitude of voltage of 5 pin are than the height of 2 pin and 6 pin, and operational amplifier LM358 exports high level, and buzzer BL does not work.
When Brake lamp M1 or the M2 of one or both sides occur that filament damages and line broken circuit, once driver touches on the brake, 2 pin of operational amplifier LM358, the magnitude of voltage of 6 pin are than the height of 3 pin, 5 pin, operational amplifier LM358 is output low level, make buzzer BL work, send the sound, remind driver to drive with caution, and maintenance in time.
Working indicating in this device is comprised of the 4th resistance R 4 and LED.If automobile power source Vcc is normal, i.e. fuse FU, braking light switch F and circuit fault-free, LED is synchronously lighted with automobile brake lamp M1 and M2; Once automobile power source Vcc breaks down or low voltage, during braking, LED can not be lighted or partially dark.Therefore, this device also can be used as braking indicator light, also can detect the fuse of braking system, braking light switch, relay and line fault simultaneously.
Finally, it is also to be noted that, what more than enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection range of the present utility model.
Claims (7)
1. an automobile brake lamp accident warning device, it is characterized in that: by automobile power source, powered, comprise the first Brake lamp (M1), the second Brake lamp (M2), working indicating, voltage comparator circuit, warning circuit, described voltage comparator circuit comprises bleeder circuit, the first clamp circuit, the second clamp circuit and operational amplification circuit;
The input of described bleeder circuit is coupled to described automobile power source, and output is connected to the 3rd input, the four-input terminal of described operational amplification circuit;
The first end of described the first clamp circuit is connected with the second end of described the first Brake lamp (M1), the first input end of described operational amplification circuit, its second end bonding;
The first end of described the second clamp circuit is connected with the second end of described the second Brake lamp (M2), the second input of described operational amplification circuit, its second end bonding;
The power end of described operational amplification circuit is coupled to described automobile power source, earth terminal bonding, and the first output and the second output are connected to described warning circuit.
2. automobile brake lamp accident warning device according to claim 1, it is characterized in that: described bleeder circuit comprises the first resistance (R1) and the second resistance (R2), the first end of described the first resistance (R1) is coupled to described automobile power source, input as described bleeder circuit, the second end is connected with the first end of described the second resistance (R2), as the output of described bleeder circuit; The second end bonding of described the second resistance (R2).
3. automobile brake lamp accident warning device according to claim 1, is characterized in that:
Described the first clamp circuit comprises the first diode (VD1), and the anode of described the first diode (VD1) is as the first end of described the first clamp circuit, and negative electrode is as the second end of described the first clamp circuit;
Described the second clamp circuit comprises the second diode (VD2), and the anode of described the second diode (VD2) is as the first end of described the second clamp circuit, and negative electrode is as the second end of described the second clamp circuit.
4. automobile brake lamp accident warning device according to claim 1, it is characterized in that: described operational amplification circuit comprises operational amplifier LM358,3,5,2,6 pin of described operational amplifier LM358 are respectively as first, second, third, fourth input of described operational amplification circuit, 1,7 pin are respectively as first, second output of described operational amplification circuit, 8 pin are as the power end of described operational amplification circuit, and 4 pin are as the earth terminal of described operational amplification circuit.
5. automobile brake lamp accident warning device according to claim 1, it is characterized in that: described warning circuit comprises the 3rd resistance (R3), gating circuit and buzzer (BL), the first end of described the 3rd resistance (R3) is coupled to described automobile power source, and the second end is connected to the first end of described buzzer (BL); First, second input of described gating circuit is connected to respectively first, second output of described operational amplification circuit, and output is connected to the second end of described buzzer (BL).
6. automobile brake lamp accident warning device according to claim 5, it is characterized in that: described gating circuit comprises the 3rd diode (VD3) and the 4th diode (VD4), the anode of described the 4th diode (VD4) is connected with the second end of the anode of described the 3rd diode (VD3), described buzzer (BL), and negative electrode is connected with the first output of described operational amplification circuit; Described the 3rd negative electrode of diode (VD3) and the second output of described operational amplification circuit are connected.
7. automobile brake lamp accident warning device according to claim 1, it is characterized in that: described working indicating comprises the 4th resistance (R4) and light-emitting diode, the first end of described the 4th resistance (R4) is coupled to described automobile power source, the second end is connected to the anode of described light-emitting diode, the negative ground of described light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619733.4U CN203590571U (en) | 2013-10-09 | 2013-10-09 | Fault alarm device of automobile break lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619733.4U CN203590571U (en) | 2013-10-09 | 2013-10-09 | Fault alarm device of automobile break lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203590571U true CN203590571U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320619733.4U Expired - Fee Related CN203590571U (en) | 2013-10-09 | 2013-10-09 | Fault alarm device of automobile break lamp |
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| Country | Link |
|---|---|
| CN (1) | CN203590571U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957564A (en) * | 2017-12-06 | 2018-04-24 | 东风商用车有限公司 | A kind of Brake lamp fault diagnosis circuit |
| CN107985183A (en) * | 2017-12-19 | 2018-05-04 | 苏州普罗森美电子科技有限公司 | Electric automobile fog lamp fault secure circuit |
| CN108528338A (en) * | 2018-05-31 | 2018-09-14 | 常州机电职业技术学院 | Automotive lighting signal lamp failure alarm device |
| CN109613373A (en) * | 2019-01-07 | 2019-04-12 | 蜂巢能源科技有限公司 | High voltage loop of electric automobile protects diagnostic system and diagnostic method and vehicle |
| CN112874432A (en) * | 2021-02-08 | 2021-06-01 | 一汽解放汽车有限公司 | Brake lamp control system and method and driving equipment |
-
2013
- 2013-10-09 CN CN201320619733.4U patent/CN203590571U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957564A (en) * | 2017-12-06 | 2018-04-24 | 东风商用车有限公司 | A kind of Brake lamp fault diagnosis circuit |
| CN107985183A (en) * | 2017-12-19 | 2018-05-04 | 苏州普罗森美电子科技有限公司 | Electric automobile fog lamp fault secure circuit |
| CN108528338A (en) * | 2018-05-31 | 2018-09-14 | 常州机电职业技术学院 | Automotive lighting signal lamp failure alarm device |
| CN109613373A (en) * | 2019-01-07 | 2019-04-12 | 蜂巢能源科技有限公司 | High voltage loop of electric automobile protects diagnostic system and diagnostic method and vehicle |
| CN112874432A (en) * | 2021-02-08 | 2021-06-01 | 一汽解放汽车有限公司 | Brake lamp control system and method and driving equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141009 |
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| EXPY | Termination of patent right or utility model |