CN2748332Y - Intelligent type automobile high-order braking lamp controller - Google Patents
Intelligent type automobile high-order braking lamp controller Download PDFInfo
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- CN2748332Y CN2748332Y CN 200420089045 CN200420089045U CN2748332Y CN 2748332 Y CN2748332 Y CN 2748332Y CN 200420089045 CN200420089045 CN 200420089045 CN 200420089045 U CN200420089045 U CN 200420089045U CN 2748332 Y CN2748332 Y CN 2748332Y
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Abstract
The utility model discloses an intelligent type automobile high-order braking lamp controller, comprising a wavelike disposal circuit, a microprocessor chip, an output switch circuit and a power circuit. The signal output end of the detection sensor of automobile speed is connected with the signal input end of the microprocessor chip by the wavelike disposal circuit and the output end of the control signals of the microprocessor chip is connected with an automobile high-order braking lamp by the output switch circuit, which controls the lamp to turn on or turn off. The microprocessor chip reads frequency signals which react the automobile speed and are output by the detection sensor of the automobile speed in every definite sampling period, and compares to the sampling frequency signals last time. If the automobile speed slows down, the microprocessor can output control singals, turn on the high-order braking lamp, prompt a driver at the rear automobile that the automobile has slowed down; the driver needs to adopt corresponding measures to keep the safe distance of two automobiles. The utility model has the advantages of simple structure, fast reaction speed and high dependability; the intelligent type automobile high-order braking lamp controller can effectively avoid generating the accidents of the automobile rear-end collision.
Description
Technical field
The utility model relates to a kind of controller that High-Position Automotive Brake Lights is carried out intelligent control, specifically, after the utility model is controlled the high-mount brake lamp that is installed in automobile tail, not only make it have the drag Presentation Function, and, also have the car deceleration Presentation Function, can avoid the generation of rear-end collision accident effectively.
Background technology
In recent years, along with the increase of car owning amount, the raising of the speed of a motor vehicle, traffic accident is linearly risen.Wherein, the rear-end collision accident is particularly outstanding.Particularly on express highway, be car crash in case rear-end collision accident majority takes place, sometimes even the pernicious traffic accident of several cars and even tens a chain of rear-end impacts of car takes place, suffer heavy losses.Along with the progress of science and technology, people recognize that gradually it is impossible stopping traffic accident fully, and still, it is possible initiatively reducing, prevent traffic accident, avoid personnel to injure.According to investigations, for the traffic accident more than 90%, take emergency measures if chaufeur can shift to an earlier date a second, traffic accident (traffic accident) is avoidable.By analyzing the rear-end impact accident causation, we find that also its major cause is: back vehicle and fwd vehicle distances are near excessively, and back vehicle has little time to take emergency measures.In accident investigation, the car driver of knocking into the back has common words " ... I touch on the brake at once, but there's not enough time "." have little time " to take in other words the time of emergency braking not enough.When front car driver finds that situation or obstacle appear in road surface, the place ahead, can slow down or slide, but back car driver does not often know that situation appears in the front, and the front car slows down, still keep original speed, cause having shortened in unconscious distance between two cars,, may find situation when back car driver recognizes the front along with the minimizing of two spacings, take measures there's not enough time, car has bumped against the tailstock of front car again.
At China's development of automobile initial stage, country just will react the braking taillight of braking automobile braking situation and classify the legal indispensable device of automobile as, and the display lamp of reaction braking automobile braking promptly each side is installed at the afterbody of automobile.At the development of automobile initial stage, quantity is few, the speed of a motor vehicle is low because highway is got on the car, distance between car and the car is bigger, after back car driver sees front car drag, there is the enough time to take corresponding measure, so, brake taillight at that time and played very large effect really, save millions upon millions of people's life, and be leveraged to the present.But, along with being doubled and redoubled of car owning amount, the significantly improving of the speed of a motor vehicle, the dwindling of distance between car and the car still prolonged with two braking taillights signal speed informations, and quantity of information is nowhere near.
In recent years, some vehicle has installed high-mount brake lamp again additional on the automobile tail back window glass, and it is in parallel with left and right sides drag lamp.When the chaufeur drag, high-mount brake lamp and left and right sides drag lamp are lighted simultaneously.Though high-mount brake lamp is installed in the higher position of back window glass, can more observably point out back this car of driver to take drag,, its same quantity of information of reacting with left and right sides brake lamp is still very limited.Sometimes, because the hypotelorism between car and the car, when seeing that high-mount brake lamp is lighted, back car driver takes measures again, time still there's not enough time, cause rear-end collision, thus, the quantity of information of high-mount brake lamp reaction is still very limited, does not fundamentally solve the reason that causes the rear-end collision accident to take place.
Summary of the invention
In view of the foregoing, the purpose of this utility model provides a kind of intelligent High-Position Automotive Brake Lights controller, this full automatic vehicle high-mount brake lamp controller combines with high-mount brake lamp, not only can make high-mount brake lamp have the drag Presentation Function, and, the car deceleration Presentation Function also had, promptly in front truck driver Reduced Speed Now, remind back car driver to note in time taking corresponding measure, keep two spacings, avoid the generation of rear-end impact accident.
For achieving the above object, the utility model by the following technical solutions: a kind of full automatic vehicle high-mount brake lamp controller, it comprises microprocessor chip, output switch circuit and power circuit; The signal input part of microprocessor chip links to each other with the signal output part of car speed sensor or wheel speed sensors, and the control signal output ends of microprocessor chip links to each other with High-Position Automotive Brake Lights by output switch circuit, controls it and lights or extinguish;
Described microprocessor chip is a core component of the present utility model, it reads the frequency signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output every certain sampling period, and with the frequency signal of the preceding once reaction speed of a motor vehicle of sampling relatively, analyze, judge, the output control signal is lighted or is extinguished high-mount brake lamp.
When the output of car speed sensor or wheel speed sensors be sine wave signal the time, this full automatic vehicle high-mount brake lamp controller also comprises a waveform finishing circuit, the signal input part of this waveform finishing circuit links to each other with the signal output part of automobile speed detecting sensor, and the signal output part of waveform finishing circuit links to each other with the signal input part of microprocessor chip.
Described waveform finishing circuit is a representative type Schmitt trigger circuit, it is made of phase inverter, resistance, its signal input part links to each other with the signal output part of described car speed sensor or wheel speed sensors, detection signal to car speed sensor or wheel speed sensors output carries out the waveform arrangement, and the signal output part of described waveform finishing circuit links to each other with the signal input part of described microprocessor chip.
In the utility model, the sampling period of described microprocessor is 300 milliseconds.
In specific embodiment of the utility model, described output switch circuit can be the chattering type output switch circuit; It can also be the non-contact type output switch circuit.
Core component of the present utility model is a microprocessor chip, it just reads the frequency signal of the reaction speed of a motor vehicle of a speed of a motor vehicle detecting sensor output every certain sampling period, and with last time the sampling frequency signal compare, if automobile speed slows down, microprocessor is just exported control signal, lights high-mount brake lamp, reminds back this car of car driver to slow down, need take corresponding measure, keep the safety distance of two cars.Because the utility model does not change high-mount brake lamp original function and circuit connecting relation,, represent the drag state again so when chaufeur was taked the drag measure, high-mount brake lamp was still lighted together with left and right sides drag lamp.
The utility model has the advantages that: 1, simple in structure, speed of response is fast, reliability is high.2, the most important thing is that the utility model can avoid rear-end collision collision effectively, when travelling, can make back car driver learn front truck Reduced Speed Now information, reduce tired driver in the very first time with car.3, car driver in back can receive throttle, fuel-economizing in advance; Reduce the braking number of times, prolong drg and integeral vehicle life.4, the utility model can be applicable in existing any vehicle, and is easy for installation.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model
Fig. 2 is physical circuit figure of the present utility model
Fig. 3, Fig. 4 are the annexation figure of the utility model and dissimilar high-mount brake lamp
Fig. 5 is the physical circuit figure of the another kind of switch circuit of the utility model
The specific embodiment
High-Position Automotive Brake Lights with about the braking taillight be relation in parallel, when the driver stepped on brake pedal, it is luminous that it and vehicle right and left are braked the taillight while, represents that this car brake driver braked.The utility model does not change the former function of high-mount brake lamp, do not change its internal structure and it and about the annexation of braking taillight, just with it with about the braking taillight separate, controlled by the disclosed controller of the utility model, make it have when deceleration luminous slightly in the speed of a motor vehicle, the driver is not stepped on brake pedal, and the information of doing even Reduced Speed Now passes to back car driver but the speed of a motor vehicle descends, make it obtain the front truck deceleration with high-mount brake lamp, improve judgement, in time take corresponding measure, keep two car safety distances, to avoid the generation of rear-end impact accident.
As shown in Figure 1, the disclosed full automatic vehicle high-mount brake lamp of the utility model controller mainly is made of microprocessor chip MCU, output switch circuit and power circuit.The signal input part of microprocessor chip links to each other with the signal output part of car speed sensor or wheel speed sensors, microprocessor reads the rectangular pulse frequency signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output every certain sampling period, and with the frequency signal of the preceding once reaction speed of a motor vehicle of sampling relatively, analyze, judge, the output control signal; The control signal output ends of microprocessor chip links to each other with High-Position Automotive Brake Lights by output switch circuit, controls it and lights or extinguish.
Because car speed sensor and wheel speed sensors is of a great variety, the signal of its output has sine wave signal, also has rectangular pulse signal.If its output is rectangular pulse signal, as mentioned above, the signal input part of microprocessor chip directly links to each other with the signal input part of microprocessor chip with the signal output part of car speed sensor or wheel speed sensors.If its output is sine wave signal, so, the signal output part of car speed sensor or wheel speed sensors links to each other with the signal input part of microprocessor chip through the shaping of waveform finishing circuit.
Core component of the present utility model is microprocessor chip MCU, it reads the frequency signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output every certain sampling period, calculate the speed of automobile this moment, and compare, analyze, judge (frequency gets higher equals to quicken, and frequency becomes the end and equals to slow down) with the speed of a motor vehicle of last time calculating.If automobile speed is slack-off, then the control signal output ends of microprocessor chip MCU is just exported control signal, makes High-Position Automotive Brake Lights bright, and prompting back car driver notices that this car reduces speed now, and back car driver should take corresponding measure, keeps two car safe distance between vehicles.Because the utility model is not done any change to the annexation of original high-mount brake lamp of automobile and left and right sides drag lamp, so, when front truck brake driver glancing impact, high-mount brake lamp and left and right sides drag lamp are lighted simultaneously, and expression Ben Che driver touches on the brake and braked.
Because the roadlice that dispatched from the factory in recent years, the application of electronic type car speed mileage table and automatically controlled wheel anti-lock (ABS) system is quite universal, so car speed sensor and wheel speed sensors become the requisite independent accessory of automobile, their function all is that the physical quantity that the speed of a motor vehicle changes is converted to the electric pulse variable quantity, all be detection signal to be transferred to separately controller with lead, so, the utility model be exactly from above-mentioned two leads any one as automobile speed change detection signal source.But because vehicle is numerous, the parameter of car speed sensor and wheel speed sensors is different, the waveform of output is also different, the waveform of output has two kinds of sinusoidal waveform and squares wave, amplitude 5V and 12V do not wait, so, be the car speed sensor or the wheel speed sensors of sinusoidal waveform for output wave shape, it is the signal input part that the rectangular pulse frequency signal of 5V is transferred to microprocessor MCU that the utility model is organized into amplitude by the waveform finishing circuit with the detection signal of car speed sensor or wheel speed sensors output.
Owing to the high-mount brake lamp that automobile is original-pack is in parallel with other two braking taillights, controlled by a brake switch, expression automobile brake state, goal of the invention of the present utility model is this function that does not change high-mount brake lamp, but the deceleration Presentation Function of increase high-mount brake lamp, promptly when driver's Reduced Speed Now, variation by the high-mount brake lamp display automobile speed of a motor vehicle, so, the utility model on the basis that does not change the original circuit connecting relation of high-mount brake lamp, the output switch circuit that links to each other with microprocessor MCU control signal output ends of in the high-mount brake lamp loop, having connected.This output switch circuit comprises a pair of open contact and the normally closed contact that is subjected to microprocessor MCU control.Under the normal circumstances, normally closed contact is connected in the high-mount brake lamp primary circuit, makes high-mount brake lamp still be subjected to the control of drag switch, keeps its original drag Presentation Function, if this moment, the driver taked brake measure, three brake lamies are simultaneously luminous; Open contact in the output switch circuit is subjected to the control of microprocessor MCU, connects with high-mount brake lamp, power supply to constitute another current return, when the driver is slowed down, microprocessor MCU exports control signal, normally closed contact is disconnected, and the open contact closure makes high-mount brake lamp link to each other with the utility model, be subjected to the utility model control luminous, the expression car deceleration is not if this moment, the driver taked brake measure, when only slowing down row, then have only high-mount brake lamp luminous, the signal speed of a motor vehicle is even slows down.
Fig. 2 is physical circuit figure of the present utility model.As shown in the figure, power circuit mainly comprises 5V voltage stabilizing chip U1 (78L05), and it mainly is that (phase inverter U2a, U2b, resistance R 1～R4) and output switch circuit (aerotron T1, relay K 1) provide 5V power supply for microprocessor chip U3 (PIC12C509), waveform finishing circuit.
The typical Schmidt trigger that phase inverter U2a, U2b (model C D4049), resistance R 1～R3 form has constituted the waveform finishing circuit, is that to be organized into amplitude be the signal input part GP5 that the rectangular pulse frequency signal of 5V is transferred to microprocessor U3 for the frequency signal of the reaction speed of a motor vehicle of the car speed sensor of 12V or wheel speed sensors output with output wave shape for the sinusoidal waveform amplitude.
When the frequency signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output was rectangular pulse signal, its signal output part directly linked to each other with the signal input part GP5 of microprocessor U3.
Microprocessor chip U3 (PIC12C509) is a core component of the present utility model, and it has 4 tunnel 8 A/D interfaces, is built-in with 4MH
ZRC type oscillation source.As shown in the figure, the detection signal f of car speed sensor or wheel speed sensors output or directly is transferred to the signal input part GP5 of microprocessor U3 after the waveform finishing circuit arrangement that phase inverter U2a, U2b, resistance R 1～R4 form.
Aerotron T1 constitutes output switch circuit with the relay K 1 that has a pair of open contact, normally closed contact.The control signal output ends GP1 of microprocessor chip U3 links to each other with the base stage of aerotron T1, and the coil of relay K 1 is connected in the 5V electric power loop by collecting electrode, the emitter of aerotron T1.As Fig. 2, shown in Figure 3, during normal circumstances, the normally closed contact of relay K 1 is connected in the high-mount brake lamp primary circuit, keeps the original circuit connecting relation of high-mount brake lamp, keeps its original braking Presentation Function; Simultaneously, a pair of open contact of relay K 1 is connected with high-mount brake lamp, 12V power supply again and is constituted another current return.When the driver steps on the drag pedal, the stop lamp switch closure, left and right sides brake lamp is bright, simultaneously, electric current flows back to the earth through 12V power supply, stop lamp switch, the normally closed contact of relay K 1, high-mount brake lamp and also forms a current return, high-mount brake lamp is bright, and three lamps are lighted simultaneously, the braking of expression braking automobile.When driver's cruising is received throttle or the deceleration of other situation, microprocessor U3 exports control signal immediately, and promptly the control signal output ends GP1 of U3 is a high level, the T1 conducting, relay K 1 adhesive, its normally closed contact disconnects, the open contact closure, and electric current flows back to the earth through open contact, the high-mount brake lamp of 12V power supply, relay K 1 closure and forms a current return, high-mount brake lamp is bright, at this moment, left and right sides brake lamp does not work, the expression car deceleration.
Since at present the control brake lamp light/or the stop lamp switch that extinguishes control anodal (as shown in Figure 3) is arranged and controls the branch of negative pole (as shown in Figure 4), for the anodal vehicle (shown in Figure 3) of stop lamp switch control, as shown in Figure 2, the open contact of relay K 1 links to each other with the 12V power supply by change-over swith P3, for the vehicle (shown in Figure 4) of stop lamp switch control negative pole, the open contact of relay K 1 links to each other with ground by change-over swith P3.
Output switch circuit shown in Figure 2 is the chattering type output switch circuit, certainly, it can also be non-contact type output switch circuit as shown in Figure 5.This non-contact type output switch circuit comprises NPN type aerotron T2, positive-negative-positive aerotron T3, resistance R 7～R9, diode Z2, Z3.The base stage of T2 links to each other with the control signal output ends GP1 of microprocessor U3, the collecting electrode of T2, emitter link to each other with ground with the 12V power supply by resistance R 8, R9, the collecting electrode of T2 is as control signal output ends L2, the collecting electrode of T2 through diode Z3 as control signal output ends L1.The base stage of aerotron T3 links to each other with the collecting electrode of T2 through resistance R 9, and its collecting electrode links to each other with the 12V power supply, and its emitter is as control signal output ends H2, its emitter through diode Z2 as control signal output ends H1.
For the anodal vehicle (shown in Figure 3) of stop lamp switch control, the interface 1,2 of H1, H2 interface difference connection diagram three among the figure five, when stop lamp switch was closed, electric current to high-order brake lamp, made high-mount brake lamp still keep former function through Z2.When slowing down, GP1 becomes high level, the T2 conducting, the T3 base tension reduces and conducting, electric current is powered to high-mount brake lamp through 12V power supply, aerotron T3, because the blocking effect of Z2 makes supply current can not flow to two brake lamies in addition, have only this moment high-mount brake lamp bright and in addition two brake lamies do not work the expression car deceleration.
Vehicle (shown in Figure 4) for stop lamp switch control negative pole, interface 1,2 among the figure five in L1, the L2 difference connection diagram four, when stop lamp switch is closed, the electric current of high-mount brake lamp forms the loop through interface L2, Z3, interface L1, stop lamp switch, makes high-mount brake lamp still keep former function.When slowing down, GP1 becomes high level, the T2 conducting, the electric current of high-mount brake lamp flows back to the earth through interface L2, T2 and forms the loop, because the blocking effect of Z3 makes two brake lamp not conductings over the ground in addition, have only this moment high-mount brake lamp bright and in addition two brake lamies do not work the expression car deceleration.
Certainly also have simpler method: for the anodal circuit (Fig. 3) of stop lamp switch control, cut off the feed circuit of high-mount brake lamp after, with the terminal 2 of high-mount brake lamp directly with Fig. 2 in lead-out terminal 2 or the lead-out terminal H2 among Fig. 5 link to each other; Circuit (Fig. 4) for stop lamp switch control negative pole, after cutting off the high-mount brake lamp control circuit, with the jumper switch P3 reconfiguration 2-3 among Fig. 2, with the terminal 2 of high-mount brake lamp directly with Fig. 2 in lead-out terminal 2 or the lead-out terminal L2 among Fig. 5 link to each other, also can realize control to high-mount brake lamp, make it when car deceleration travels, light.Though connection is simple like this, high-mount brake lamp is not subjected to the control of former car stop lamp switch, controlled by the utility model, can only the display automobile deceleration regime, and braking mode that can't display automobile.
No matter be the chattering type output switch circuit, or the non-contact type output switch circuit all can make high-mount brake lamp in Ben Che driver's Reduced Speed Now, light prompting back car driver and note.
Principle of work of the present utility model is: microprocessor U3 every the sampling of certain sampling period, read the signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output, store, and with preceding once the sampling signal compare, analyze, judge, if the speed of a motor vehicle slows down, microprocessor is just exported control signal, makes high-mount brake lamp bright, if the speed of a motor vehicle is accelerated or do not changed, microprocessor output control signal does not work high-mount brake lamp.
The microprocessor U3 (PIC12C509) that the utility model is selected for use is built-in with 4MH
zRC type oscillation source, it every at regular intervals, to car speed sensor/or the frequency signal of wheel speed sensors output reads, calculates, more once, its method is as follows:
Setting 300ms is a time cycle (during speed of a motor vehicle 120km/h, being equivalent to 10m/300ms), and the frequency (f) that reads for the first time is F
n, depositing register in, the frequency (f) that reads for the second time behind the 300ms is F
N+1(depositing register again in) is with F
N+1With F
nCompare, if:
F
N+1＞F
nThe expression speed of a motor vehicle rises
F
N+1=F
nThe expression speed of a motor vehicle is constant
F
N+1＜F
nThe expression speed of a motor vehicle descends
Behind the 300ms, the f that microprocessor reads for the third time is F
N+2, and and F
N+1Relatively, its method is the same, and the rest may be inferred, continual like this every 300 milliseconds of one-periods more once, if speed of a motor vehicle decline is F
N+1＜F
n, the control signal output ends GP1 of microprocessor U3 fails high level, makes the T1 conducting, and relay K 1 coil gets electric adhesive, its open contact closure, the normally closed contact end is opened, and high-mount brake lamp is bright, show that this car speed of a motor vehicle reduces, slows down, remind back car driver to note, play deceleration demonstration effect.When the speed of a motor vehicle rises F
N+1〉=F
nThe time, the control signal output ends GP1 of microprocessor U3 fails low level, and T1 is ended, relay K 1 coil blackout, and closed open contact end is opened, and high-mount brake lamp is extinguished.
The inventor verifies deceleration prompting effect of the present utility model on express highway: when the speed of a motor vehicle is 120km/h, two following distances remain on when being not less than 200m, 300ms running car 10m, when two cars one in front and one in back travel in the same way, front truck has just begun even the deceleration, high-mount brake lamp is in time luminous, the visual light of rear driver to high-order deceleration lamp, determine very clearly that front truck has slowed down and Ex post, this moment, two spacings only shortened 3m, and the distance between two cars still remains on about 200m-3m.But if do not use the utility model, the speed of a motor vehicle, spacing are identical with above-mentioned situation, when front truck does not touch on the brake and when only receiving throttle or unclamping that throttle is even to slow down, because the visual defective of people, after the car driver recognized that front truck slows down after treating, the spacing of two cars shortened to about 140m.This shows that behind use the utility model, the judgement that front truck is slowed down can improve tens times.
The utility model is simple in structure, speed of response is fast, reliability is high; Can avoid the rear-end collision collision effectively, when travelling, can make back car driver grasp the speed information of front truck at any time, increase driving enjoyment, reduce tired driver in fleet or with car.The utility model can be applicable in existing any vehicle, and is easy for installation.
Along with the widespread use of microcontroller at vehicle electric field, increasing electric control unit has adopted microprocessor MCU to control, for example: 1. the electronic type speed of a motor vehicle, mileage meter ECU controller; 2. the constant speed of the go the rounds ECU of system controller; 3. anti-blocking brake system ECU controller; 4. reverse radar system ECU controller; 5. anti-theft system ECU controller; Also have various controllers in addition.Because control theory of the present invention is simple, only need a signal input of microprocessor, a control signal delivery port.Only use two I/O mouths, and take various program areas and the space, data field is little, so, can make full use of the existing various microprocessor units of automobile, program of the present invention is write microcontroller get final product.For example: 3. 2. 1. above plant microprocessor and car speed sensor or contact directly with wheel speed sensors, can save a signal input interface, write program of the present invention, make microprocessor increase a deceleration control function, although can drive former overall height position brake lamp. 5. 4. the plant the not contact of microprocessor and car speed sensor, but also can 4. 5. plant microprocessor to car speed sensor or wheel speed sensors signal output part and connects, promptly do not influence former function, increased the deceleration control function again, also can be used for the present invention.
The above is concrete enforcement example of the present utility model and the know-why used, and is any based on the equivalent transformation on the technical solutions of the utility model basis, all belongs within the utility model protection domain.
Claims (6)
1, a kind of full automatic vehicle high-mount brake lamp controller, it is characterized in that: it comprises microprocessor chip, output switch circuit and power circuit; The signal input part of microprocessor chip links to each other with the signal output part of car speed sensor or wheel speed sensors, and the control signal output ends of microprocessor chip links to each other with High-Position Automotive Brake Lights by output switch circuit, controls it and lights or extinguish;
Described microprocessor chip is a core component of the present utility model, it reads the frequency signal of the reaction speed of a motor vehicle of car speed sensor or wheel speed sensors output every certain sampling period, and with the frequency signal of the preceding once reaction speed of a motor vehicle of sampling relatively, analyze, judge, the output control signal is lighted or is extinguished high-mount brake lamp.
2, full automatic vehicle high-mount brake lamp controller according to claim 1, it is characterized in that: this controller also comprises a waveform finishing circuit, the signal input part of this waveform finishing circuit links to each other with the signal output part of automobile speed detecting sensor, and the signal output part of waveform finishing circuit links to each other with the signal input part of microprocessor chip.
3, full automatic vehicle high-mount brake lamp controller according to claim 2, it is characterized in that: described waveform finishing circuit is a representative type Schmitt trigger circuit, it is made of phase inverter, resistance, its signal input part links to each other with the signal output part of described car speed sensor or wheel speed sensors, detection signal to car speed sensor or wheel speed sensors output carries out the waveform arrangement, and the signal output part of described waveform finishing circuit links to each other with the signal input part of described microprocessor chip.
4, according to claim 1 or 2 or 3 described full automatic vehicle high-mount brake lamp controllers, it is characterized in that: the sampling period of described microprocessor is 300 milliseconds.
5, full automatic vehicle high-mount brake lamp controller according to claim 4, it is characterized in that: described output switch circuit is the chattering type output switch circuit; This chattering type output switch circuit by aerotron, have a pair ofly often open/relay of normally closed contact constitutes;
The control signal output ends of described microprocessor chip links to each other with the base stage of aerotron, controls the conducting and the shutoff of this aerotron; The coil of relay is connected with the collecting electrode of aerotron, emitter, direct supply, the earth and is constituted a loop; The normally closed contact of this relay is connected in the high-mount brake lamp primary circuit loop; Simultaneously, the open contact of relay is connected with high-mount brake lamp, direct supply, the earth again and is constituted another current return.
6, full automatic vehicle high-mount brake lamp controller according to claim 4, it is characterized in that: described output switch circuit is the non-contact type output switch circuit; This non-contact type output switch circuit comprises NPN type aerotron, positive-negative-positive aerotron, resistance;
The base stage of NPN type aerotron links to each other with described microprocessor control signal output, its collecting electrode, emitter link to each other NPN type aerotron as switching valve by resistance and 12V power supply with ground, its collecting electrode is connected with high-mount brake lamp, direct supply as control signal output ends and is constituted a current return, the lighting or extinguish of control high-mount brake lamp;
The base stage of positive-negative-positive aerotron links to each other through the collecting electrode of resistance NPN type aerotron, its collecting electrode links to each other with direct supply, its emitter is connected with high-mount brake lamp, the earth as control signal output ends and is constituted a current return, the lighting or extinguish of control high-mount brake lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089045 CN2748332Y (en) | 2004-08-31 | 2004-08-31 | Intelligent type automobile high-order braking lamp controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089045 CN2748332Y (en) | 2004-08-31 | 2004-08-31 | Intelligent type automobile high-order braking lamp controller |
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| CN2748332Y true CN2748332Y (en) | 2005-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420089045 Expired - Fee Related CN2748332Y (en) | 2004-08-31 | 2004-08-31 | Intelligent type automobile high-order braking lamp controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584408A (en) * | 2014-10-22 | 2016-05-18 | 陕西重型汽车有限公司 | Speed reduction alarm brake lamp control system, vehicle control system and vehicle |
| CN107444253A (en) * | 2016-06-01 | 2017-12-08 | 常州星宇车灯股份有限公司 | A kind of intelligent controller for automobile brake lamp |
-
2004
- 2004-08-31 CN CN 200420089045 patent/CN2748332Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105584408A (en) * | 2014-10-22 | 2016-05-18 | 陕西重型汽车有限公司 | Speed reduction alarm brake lamp control system, vehicle control system and vehicle |
| CN107444253A (en) * | 2016-06-01 | 2017-12-08 | 常州星宇车灯股份有限公司 | A kind of intelligent controller for automobile brake lamp |
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