CN102166984B - State monitoring system for turning lights and braking lights of automobile - Google Patents
State monitoring system for turning lights and braking lights of automobile Download PDFInfo
- Publication number
- CN102166984B CN102166984B CN2011100854060A CN201110085406A CN102166984B CN 102166984 B CN102166984 B CN 102166984B CN 2011100854060 A CN2011100854060 A CN 2011100854060A CN 201110085406 A CN201110085406 A CN 201110085406A CN 102166984 B CN102166984 B CN 102166984B
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- China
- Prior art keywords
- divider resistance
- photoisolator
- brake lamp
- electric wire
- power supply
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Abstract
The invention discloses a state monitoring system for turning lights and braking lights of an automobile. The state monitoring system consists of a power supply detection part and a light intensity detection part, wherein the power supply detection part consists of a first divider resistor, a photoisolator and a second divider resistor; one end of the first divider resistor is connected with the positive pole of a 24V power supply, and the other end of the first divider resistor is connected with the No.1 wiring end of the photoisolator; the No.2 wiring end of the photoisolator is connected with the negative pole of the 24V power supply; one end of the second divider resistor is connected with the No.3 wiring end of the photoisolator, and the other end of the second divider resistor is connected with the negative pole of a 5V power supply; the N0.4 wiring end of the photoisolator is connected with the positive pole of the 5V power supply; the No.3 wiring end of the photoisolator is also set as an output end U01; the light intensity detection part consists of a photoresistor and a divider resistor; one end of the photoresistor is connected with the negative pole of the 5V power supply, and the other end of the photoresistor is connected with the divider resistor; the other end of the divider resistor is connected with the positive pole of the 5V power supply; and the photoresistor and the public wiring end of the divider resistor are connected with an output end U02.
Description
Technical field
The present invention relates to the checking system in a kind of vehicle testing technique field, more particularly, the present invention relates to a kind of condition monitoring system of motor turning brake lamp.
Background technology
Along with the fast development of Domestic Automotive Industry, the increasing sharply of automobile pollution, motor traffic accidents also increases thereupon.In the vehicle traveling process; Some large-scale transportation lorries particularly; Regular meeting can't discover because of brake lamp fault, steering indicating light fault chaufeur, causes and can not exactly braking deceleration information, direction information be passed to back vehicle, thereby cause pernicious traffic accident; Especially when night running, the risk that accident occurs is higher.
For improving the safety of vehicle '; Many automakers have installed the braking indicator lamp at gauge panel; But this indicator lamp can only show the good of stop lamp switch, can not the objective working condition that reflects brake lamp all sidedly, damage or line end fault such as open circuit all can cause one or two brake lamp not work like brake lamp bad earth, bulb; And in these cases, the braking indicator lamp of gauge panel is but glittering as usual.
Dispose Der Blink und Abblendschalter in the steering swivel system, when the steering indicating light of vehicle had fault, the glittering frequency of Der Blink und Abblendschalter can change; But concerning some Oversize vehicles; Because steering indicating light is many, the change of frequency of Der Blink und Abblendschalter is not obvious, and the driver of general long-distance driving is difficult to judge steering indicating light fault has taken place.
Summary of the invention
Technical matters to be solved by this invention is to have overcome the problem that prior art exists, and a kind of condition monitoring system of motor turning brake lamp is provided.
For solving the problems of the technologies described above, the present invention adopts following technical scheme to realize: the condition monitoring system of described motor turning brake lamp is made up of power supply test section and light intensity test section.
The power supply test section is made up of first divider resistance, photoisolator and second divider resistance.
One end of first divider resistance is connected with the 24V positive source electric wire of motor turning brake lamp, and the other end is connected with No. 1 terminals electric wire of photoisolator, and No. 2 terminals of photoisolator are connected with the 24V power cathode electric wire of motor turning brake lamp.One end of second divider resistance is connected with No. 3 terminals electric wires of photoisolator, and the other end of second divider resistance is connected with 5V power cathode electric wire.No. 4 terminals of photoisolator are connected with 5V positive source electric wire, and No. 3 terminals of photoisolator are set to the signal output part U01 of the on/off of motor turning brake lamp simultaneously.
The light intensity test section is made up of photoconductive cell and divider resistance.
One end of photoconductive cell is connected with 5V power cathode electric wire; The other end of photoconductive cell is connected with an end electric wire of divider resistance; The other end of divider resistance is connected with 5V positive source electric wire, and the common terminal of photoconductive cell and divider resistance is connected with the mouth U02 electric wire of light intensity signal.
The resistance of second divider resistance described in the technical scheme is 1～2K Ω, and the resistance of first divider resistance is 1.9～3.9 times of second divider resistance, and the resistance of divider resistance is 3.5～5.1 times of second divider resistance; Described photoisolator employing model is 521 chip.
Compared with prior art the invention has the beneficial effects as follows:
1. the condition monitoring system of motor turning brake lamp of the present invention has the function of the state of real-time monitoring motor turning brake lamp; Owing to adopt photoconductive cell; Whether glittering, realize the faulty condition of accurate fast monitored motor turning brake lamp if directly detecting the motor turning brake lamp, use the photoconductive cell cost low; Working stability, efficient is high.Avoided of the traffic accident of braking in a turn lamp because of can't promptly and accurately reporting to the police and take place.
2. the condition monitoring system of motor turning brake lamp of the present invention adopts photoisolator, avoids judging accurately because of the fluctuation of the battery-operated voltage influence to computer input signal whether braking in a turn lamp two ends have.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is the electrical schematic diagram of the condition monitoring system of motor turning brake lamp of the present invention;
Among the figure: A. power supply test section, B. light intensity test section, 1. first divider resistance, 2. photoisolator, 3. second divider resistance, 4. photoconductive cell, 5. divider resistance.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is explained in detail:
The condition monitoring system of motor turning brake lamp of the present invention has the function of the state of real-time monitoring motor turning brake lamp; Whether monitoring motor turning brake lamp two ends have; And whether the motor turning brake lamp is glittering, and can avoid because of automotive battery the harmful effect of voltage instability to computer input signal being provided through photoisolator.
Consult Fig. 1, the condition monitoring system of motor turning brake lamp of the present invention is made up of power supply test section A and light intensity test section B.
Power supply test section A is made up of first divider resistance 1, photoisolator 2 and second divider resistance 3.
The light intensity test section is made up of photoconductive cell 4 and divider resistance 5.
One (left side) end of first divider resistance 1 among the A of power supply test section is connected with the 24V positive source electric wire of motor turning brake lamp; The other end of first divider resistance 1 is connected with No. 1 terminals electric wire of photoisolator 2; Photoisolator 2 employing models are 521 chip; No. 2 terminals of photoisolator 2 are connected with the 24V power cathode electric wire of motor turning brake lamp; One (left side) end of second divider resistance 3 is connected with No. 3 terminals electric wires of photoisolator 2; Another (right side) of second divider resistance 3 end is connected with 5V power cathode electric wire, and No. 4 terminals of photoisolator 2 are connected with 5V positive source electric wire, and wherein photoisolator 2 No. 3 terminals are set to the signal output part U01 of the on/off of motor turning brake lamp simultaneously:
One (left side) end of the photoconductive cell 4 among the B of light intensity test section and another (right side) end of second divider resistance 3 are connected with 5V power cathode while electric wire; Another of photoconductive cell 4 (right side) end is connected with one (left side) the end electric wire of divider resistance 5; And another (right side) of divider resistance 5 end is connected with 5V positive source electric wire, and the common terminal of photoconductive cell 4 and divider resistance 5 is connected with the mouth U02 electric wire of light intensity signal.
The resistance of second divider resistance 3 is 1～2K Ω, and the resistance of first divider resistance 1 is 1.9～3.9 times of second divider resistance 3, and the resistance of divider resistance 5 is 3.5～5.1 times of second divider resistance 3.
The principle of work of the condition monitoring system of motor turning brake lamp
According to the electrical schematic diagram of the condition monitoring system of motor turning brake lamp circuit component is connected with the steering indicating light and the brake lamp of automobile respectively.
The steering indicating light of opening automobile, according to the output voltage that No. 3 terminals of photoisolator 2 are mouth U01, if voltage is low level, then the steering indicating light power supply opens circuit, and steering indicating light does not work; If voltage is high level; Steering indicating light power supply path then; Steering indicating light power supply trouble free, when the common terminal of divider resistance 5 and photoconductive cell 4 is that mouth U02 output voltage is high level or low level always, then steering indicating light has fault not flash; When the common terminal of divider resistance 5 and photoconductive cell 4 is that mouth U02 output voltage is high level and low level alternate, then the steering indicating light trouble free flashes.
Step on brake pedal, according to the output voltage that No. 3 terminals of photoisolator 2 are mouth U01, if voltage is low level, then the brake lamp power supply opens circuit, and brake lamp does not work; If voltage is high level; Brake lamp power supply path then; Brake lamp power supply trouble free, when the common terminal of divider resistance 5 and photoconductive cell 4 is that mouth U02 output voltage is high level always, then brake lamp has fault not work; When the common terminal of divider resistance 5 and photoconductive cell 4 is that mouth U02 output voltage is a low level, then the brake lamp trouble free is bright.
Claims (3)
1. the condition monitoring system of a motor turning brake lamp is characterized in that, the condition monitoring system of described motor turning brake lamp is made up of with light intensity test section (B) power supply test section (A);
Power supply test section (A) is made up of with second divider resistance (3) first divider resistance (1), photoisolator (2);
One end of first divider resistance (1) is connected with the 24V positive source electric wire of motor turning brake lamp; The other end is connected with No. 1 terminals electric wire of photoisolator (2); No. 2 terminals of photoisolator (2) are connected with the 24V power cathode electric wire of motor turning brake lamp; One end of second divider resistance (3) is connected with No. 3 terminals electric wires of photoisolator (2); The other end of second divider resistance (3) is connected with 5V power cathode electric wire, and No. 4 terminals of photoisolator (2) are connected with 5V positive source electric wire, and No. 3 terminals of photoisolator (2) are set to the signal output part U01 of the on/off of motor turning brake lamp simultaneously;
Light intensity test section (B) is made up of photoconductive cell (4) and divider resistance (5);
One end of photoconductive cell (4) is connected with 5V power cathode electric wire; The other end of photoconductive cell (4) is connected with an end electric wire of divider resistance (5); The other end of divider resistance (5) is connected with 5V positive source electric wire, and the common terminal of photoconductive cell (4) and divider resistance (5) is connected with the mouth U02 electric wire of light intensity signal.
2. according to the condition monitoring system of the described motor turning brake lamp of claim 1; It is characterized in that; The resistance of described second divider resistance (3) is 1～2K Ω; The resistance of first divider resistance (1) is 1.9～3.9 times of second divider resistance (3), and the resistance of divider resistance (5) is 3.5～5.1 times of second divider resistance (3).
3. according to the condition monitoring system of the described motor turning brake lamp of claim 1, it is characterized in that described photoisolator (2) employing model is 521 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100854060A CN102166984B (en) | 2011-04-06 | 2011-04-06 | State monitoring system for turning lights and braking lights of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100854060A CN102166984B (en) | 2011-04-06 | 2011-04-06 | State monitoring system for turning lights and braking lights of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102166984A CN102166984A (en) | 2011-08-31 |
| CN102166984B true CN102166984B (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100854060A Expired - Fee Related CN102166984B (en) | 2011-04-06 | 2011-04-06 | State monitoring system for turning lights and braking lights of automobile |
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| Country | Link |
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| CN (1) | CN102166984B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495379A (en) * | 2011-12-04 | 2012-06-13 | 吉林大学 | State monitoring system for vehicle brake lamp |
| CN102662150A (en) * | 2012-05-31 | 2012-09-12 | 吉林大学 | Shunt type steering and braking lamp state monitoring system for commercial vehicle |
| CN112124225A (en) * | 2020-08-31 | 2020-12-25 | 广汽蔚来新能源汽车科技有限公司 | Fault diagnosis system and method for running water steering lamp, vehicle body controller and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128760A (en) * | 1977-04-07 | 1978-12-05 | Ncr Corporation | Ambient light compensating circuit |
| CN2129238Y (en) * | 1992-04-30 | 1993-04-07 | 广州万达电子仪器有限公司 | Monitoring instrument for automobile headlight |
| EP0802081A2 (en) * | 1996-04-20 | 1997-10-22 | Reitter & Schefenacker GmbH & Co. KG | Rear lights for vehicle |
| CN2500547Y (en) * | 2001-02-08 | 2002-07-17 | 葛运昌 | Automatic monitoring device for failure of automobile |
| CN202018337U (en) * | 2011-04-06 | 2011-10-26 | 吉林大学 | State monitoring system of motor steering brake lamp |
-
2011
- 2011-04-06 CN CN2011100854060A patent/CN102166984B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128760A (en) * | 1977-04-07 | 1978-12-05 | Ncr Corporation | Ambient light compensating circuit |
| CN2129238Y (en) * | 1992-04-30 | 1993-04-07 | 广州万达电子仪器有限公司 | Monitoring instrument for automobile headlight |
| EP0802081A2 (en) * | 1996-04-20 | 1997-10-22 | Reitter & Schefenacker GmbH & Co. KG | Rear lights for vehicle |
| CN2500547Y (en) * | 2001-02-08 | 2002-07-17 | 葛运昌 | Automatic monitoring device for failure of automobile |
| CN202018337U (en) * | 2011-04-06 | 2011-10-26 | 吉林大学 | State monitoring system of motor steering brake lamp |
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| Publication number | Publication date |
|---|---|
| CN102166984A (en) | 2011-08-31 |
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