CN110065430A - The vehicle front lighting lamp system and its state monitoring method of carrier state feedback - Google Patents
The vehicle front lighting lamp system and its state monitoring method of carrier state feedback Download PDFInfo
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- CN110065430A CN110065430A CN201910393344.6A CN201910393344A CN110065430A CN 110065430 A CN110065430 A CN 110065430A CN 201910393344 A CN201910393344 A CN 201910393344A CN 110065430 A CN110065430 A CN 110065430A
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- circuit
- headlamp
- feedback signal
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- nmos tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
- B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a kind of vehicle front lighting lamp system of carrier state feedback and its state monitoring methods and car headlamp state indication method.The present invention joined state feedback function on the basis of existing vehicle front lighting lamp system, status monitoring is carried out to each module in vehicle front lighting lamp system by control circuit, in conjunction with the status monitoring to headlamp start-up circuit and to circuit of power factor correction, the status monitoring of DC transfer circuit and low frequency inverter circuit, whether the working condition to judge vehicle front lighting lamp system is normal, it and is car headlamp damage when the working state abnormal of vehicle front lighting lamp system, or the car headlamp system failure, and judging result is fed back into automobile instrument panel or vehicle audio.Automobile instrument panel or vehicle audio can be according to the corresponding indication signals of the delivering received, to remind the current state of driver's vehicle front lighting lamp system and car headlamp, it is ensured that driving at night safety.
Description
Technical field
The vehicle front lighting lamp system and its state fed back the present invention relates to automotive electronic technology more particularly to a kind of carrier state
Monitoring method and car headlamp state indication method.
Background technique
It is generally known that the proper use of of car headlamp is of great significance for ride safety of automobile.Currently, in automobile
Instruction message reflection on bridge instrumentation disk in relation to car headlamp is mode of operation of the driver to headlamp.Traditional
Head lamp system by battery pack, circuit of power factor correction, DC transfer circuit, low frequency inverter circuit, headlamp start-up circuit,
Control circuit and headlamp composition.Wherein circuit of power factor correction, DC transfer circuit, low frequency inverter circuit and headlamp open
The core devices of dynamic circuit are all all-controlling power electronics devices, and the driving signal that can be issued by control circuit, which is realized, opens
And closing.Control circuit in the system is responsible for guarantee whole system normal table operation, and is not implemented to system mode
Monitoring state is not more fed back to instrument board headlamp instruction system, can not reflect the practical work of car headlamp by monitoring
Make state.Partial automobile has whether auto lamp damages indicator light on bridge instrumentation disk, however the indicator light can not be accurate
Reflect it is which type of auto lamp damage.
In conclusion being based on the prior art, driver can not judge whether be executed correctly to the operational order of headlamp,
It can not judge the actual working state of car headlamp.This causes severe compromise to the automobile in traveling.
Summary of the invention
Present invention is primarily aimed at provide vehicle front lighting lamp system and its status monitoring side of a kind of carrier state feedback
Method and car headlamp state indication method can not judge to refer to the operation of headlamp to solve driver in the prior art
Enable the problem of whether being executed correctly, can not judging the actual working state of car headlamp.
The present invention is achieved through the following technical solutions:
A kind of vehicle front lighting lamp system of carrier state feedback, including sequentially connected circuit of power factor correction, direct current become
Change circuit, low frequency inverter circuit and headlamp start-up circuit；
Output is to described low after the boost in voltage to setting value that the DC transfer circuit is used to export automobile batteries group
Frequency inverter circuit；
The low frequency inverter circuit is for exporting the voltage inversion after DC transfer circuit boosting after alternating current
To the headlamp start-up circuit；
The headlamp start-up circuit for that will be exported after the exchange electric boost to car headlamp, with drive it is described before
Illuminator；
The circuit of power factor correction is used to improve the power factor of system, and the control battery pack and described straight
The on-off connected between stream translation circuit；
The system also includes control circuit, the control circuit and the circuit of power factor correction, the direct current become
Change circuit, the low frequency inverter circuit connects with the headlamp start-up circuit, and is connected to automobile instrument panel or vehicle audio,
For monitor and control the circuit of power factor correction, the DC transfer circuit, the low frequency inverter circuit and it is described before
The working condition of illuminator start-up circuit, and when monitoring that the headlamp start-up circuit working condition is normal, to instrument board
Or vehicle audio sends expression normal first feedback signal of car headlamp working state of system, when the headlamp opens
Dynamic circuit working state is abnormal, but the circuit of power factor correction, the DC transfer circuit and the low frequency inverter circuit
When working condition is normal, the second feedback signal for indicating that the headlamp damages is sent to instrument board or vehicle audio, works as institute
It is abnormal to state headlamp start-up circuit working condition, and the circuit of power factor correction, the DC transfer circuit and described low
When having the working condition exception of at least one in frequency inverter circuit, sending to instrument board or vehicle audio indicates the vehicle front lighting
The third feedback signal of lamp system failure.
Further, the circuit of power factor correction, the DC transfer circuit, the low frequency inverter circuit and described
Headlamp start-up circuit is all-controlling power electronics device.
Further, the circuit of power factor correction includes inductance L1, NMOS tube S0 and NMOS tube S1, and the one of inductance L1
It holds and is connect with the anode of the battery pack, the other end of inductance L1 is connect with the drain electrode of NMOS tube S0 and the drain electrode of NMOS tube S1,
The source electrode of NMOS tube S1 is connect with the cathode of the battery pack, the input terminal of the source electrode of NMOS tube S0 and the DC transfer circuit
Connection.
Further, the DC transfer circuit includes NMOS tube S2, diode D and inductance L2, the drain electrode of NMOS tube S2
Input terminal as the DC transfer circuit is connect with the circuit of power factor correction, the source electrode and diode of NMOS tube S2
The cathode of D is connected with one end of inductance L2, and the other end of inductance L2 is inverse as the output end and low frequency of the DC transfer circuit
The input terminal on power transformation road connects, and the anode of diode D is connect with the cathode of the battery pack.
Further, the low frequency inverter circuit includes NMOS tube S3, NMOS tube S4, NMOS tube S5 and NMOS tube S6,
NMOS tube S3, NMOS tube S4, NMOS tube S5 and NMOS tube S6 form unidirectional full bridge inverter, the unidirectional full bridge inverter
Input terminal connected as the input terminal of the low frequency inverter circuit and the output end of DC transfer circuit, the unidirectional full-bridge is inverse
The output end on power transformation road is connect as the output end of the low frequency inverter circuit with the input terminal of the headlamp start-up circuit.
Further, the headlamp start-up circuit includes bilateral diode D2, capacitor C3 and transformer T1, two-way two pole
One end of pipe D2 is connect as the input terminal of the headlamp start-up circuit with the output end of the low frequency inverter circuit, for connecing
Enter the alternating current, the other end of bilateral diode D2 is connect with one end of capacitor C3, the other end and transformer T1 of capacitor C3
Primary side connection, the secondary side of transformer T1 connect with the headlamp, and the alternating current is successively through bilateral diode D2, electricity
Hold C3 and input the primary side of the transformer T1, the transformer T1 by after the exchange electric boost by its secondary side export to
The headlamp, to drive the headlamp.
A method of the state of the vehicle front lighting lamp system of carrier state as described above feedback is monitored, including such as
Lower step:
Whether control circuit monitors headlamp start-up circuit normal to detect its working condition；
When the headlamp start-up circuit working condition is normal, the control circuit is to the instrument board or vehicle audio
Sending indicates normal first feedback signal of car headlamp working state of system；
When the headlamp start-up circuit working condition exception, the control circuit detects the PFC electricity
Road, the DC transfer circuit and the low frequency inverter circuit working condition, and in the circuit of power factor correction, described
When the working condition of DC transfer circuit and the low frequency inverter circuit is normal, Xiang Suoshu instrument board or vehicle audio are sent
The second feedback signal for indicating the headlamp damage, in the circuit of power factor correction, the DC transfer circuit and institute
When stating the working condition exception of any one in low frequency inverter circuit, Xiang Suoshu instrument board or vehicle audio are sent described in expression
The third feedback signal of the car headlamp system failure；
The instrument board or vehicle audio receive first feedback signal, second feedback signal or the third
When feedback signal, corresponding indication signal is issued.
Further, after the control circuit issues second feedback signal, control circuit of power factor correction is disconnected
Connection between the battery pack and the DC transfer circuit also controls power factor after issuing the third feedback signal
Correcting circuit disconnects the connection between the battery pack and the DC transfer circuit.
A kind of car headlamp state indication method, including
Whether detection automobile has been carried out the operation for opening headlamp；
When the automobile has been carried out the operation for opening headlamp, method as claimed in claim 7 or 8 is executed, together
When, execute following any operation:
Instrument board lights full beam indicator lamp when receiving first feedback signal, is receiving second feedback
When signal, extinguish the indicator light, when receiving the third feedback signal, the indicator light is made to change colour or flash；Or
Vehicle audio issues the first voice signal, is receiving second feedback signal when receiving first feedback signal
When, second sound signal is issued, when receiving the third feedback signal, issues third voice signal.
When the automobile is not carried out the operation for opening headlamp, method as claimed in claim 7 or 8 is executed, together
When, execute following any operation:
Instrument board extinguishes the indicator light when receiving first feedback signal, is receiving second feedback
When signal, the indicator light is lighted, when receiving the third feedback signal, the indicator light is made to change colour or flash；Or
Vehicle audio issues the second sound signal when receiving first feedback signal, is receiving second feedback
When signal, issues first voice signal and issue the third voice signal when receiving the third feedback signal.
Further, it is carried out between the control circuit and the instrument board or vehicle audio by wired or wireless way
Data communication.
Compared with prior art, the vehicle front lighting lamp system of carrier state feedback provided by the invention and its status monitoring side
Method and car headlamp state indication method joined state feedback function on the basis of existing vehicle front lighting lamp system,
Status monitoring is carried out to each module in vehicle front lighting lamp system by control circuit, in conjunction with the state to headlamp start-up circuit
Monitoring and to the status monitoring of circuit of power factor correction, DC transfer circuit and low frequency inverter circuit, to judge vehicle front lighting
Whether the working condition of lamp system is normal, and is car headlamp damage when the working state abnormal of vehicle front lighting lamp system
The bad or car headlamp system failure, and judging result is fed back into automobile instrument panel or vehicle audio.Automobile instrument panel or
Vehicle audio can be according to the corresponding indication signal of the delivering received, before reminding driver's vehicle front lighting lamp system and automobile
The current state of illuminator, it is ensured that driving at night safety.
Detailed description of the invention
Fig. 1 is the theory of constitution schematic diagram of the vehicle front lighting lamp system of carrier state of embodiment of the present invention feedback；
Fig. 2 is the circuit theory schematic diagram of the vehicle front lighting lamp system of carrier state of embodiment of the present invention feedback；
Fig. 3 is that the embodiment of the present invention is monitored the state for the vehicle front lighting lamp system that carrier state as described above is fed back
Method flow schematic diagram；
Fig. 4 is the flow diagram of the headlamp state indication method based on instrument board instruction；
Fig. 5 is the flow diagram of the headlamp state indication method based on vehicle audio instruction.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail.
As shown in Figure 1, the vehicle front lighting lamp system for the carrier state feedback that the embodiment of the present invention one provides, including be sequentially connected with
Circuit of power factor correction 2, DC transfer circuit 3, low frequency inverter circuit 4 and headlamp start-up circuit 5.The system is mainly answered
For HID (High intensity Discharge) Xenon headlamp.In the system:
Low frequency inversion is given in output after the boost in voltage to setting value that DC transfer circuit 3 is used to export automobile batteries group 1
Circuit 4.The voltage that battery pack 1 provides is lower, needs DC transfer circuit 3 that voltage is raised to after 400V and is supplied to low frequency inversion electricity
Road 4.Therefore the setting value is usually set to 400V or more.After low frequency inverter circuit 4 is used to boost DC transfer circuit 3
Voltage inversion is output after alternating current to headlamp start-up circuit 5.When the system is applied to HID Xenon headlamp, due to HID
Xenon or metal halide gas are full of in Xenon headlamp, the lamp is without filament, and only there are two electrodes, needs between two electrodes
It establishes high pressure and will generate arc light after gas breakdown and light, therefore it is defeated after electric boost for that will exchange that headlamp start-up circuit 5 is arranged
Out to car headlamp 6, to drive headlamp 6.Circuit of power factor correction 2 is used to improve the power factor of system, and control
The on-off connected between battery pack 1 processed and DC transfer circuit 3.
The vehicle front lighting lamp system further includes control circuit 7, control circuit 7 and circuit of power factor correction 2, DC converting
Circuit 3, low frequency inverter circuit 4 and headlamp start-up circuit 5 connect, and are connected to automobile instrument panel 8 or vehicle audio 9, are used for
The work of monitoring and control circuit of power factor correction 2, DC transfer circuit 3, low frequency inverter circuit 4 and headlamp start-up circuit 5
Make state.When control circuit 7 monitors that 5 working condition of headlamp start-up circuit is normal, show at the vehicle front lighting lamp system
In normal operating conditions, at this point, control circuit 7 is sent to instrument board 8 indicates car headlamp working state of system normal the
One feedback signal；When control circuit 7 monitors that headlamp start-up circuit 5 working condition is abnormal, but circuit of power factor correction 2,
When DC transfer circuit 3 and normal 4 working condition of low frequency inverter circuit, explanation is that headlamp 6 damages, at this point, control circuit 7
The second feedback signal for indicating that headlamp 6 damages is sent to instrument board 8 or vehicle audio 9；When control circuit 7 monitors headlamp
Start-up circuit 5 working condition is abnormal, and have in circuit of power factor correction 2, DC transfer circuit 3 and low frequency inverter circuit 4 to
When few one working condition exception, explanation is that circuit of power factor correction 2, DC transfer circuit 3 or low frequency inverter circuit 4 are sent out
Raw failure, rather than headlamp 6 damages, at this point, control circuit 7 is sent to instrument board 8 or vehicle audio 9 indicates car headlamp system
The third feedback signal for failure of uniting.
After instrument board 8 or vehicle audio 9 receive the first feedback signal, the second feedback signal or third feedback signal, energy
Corresponding indication signal is enough issued, to remind the current state of driver's vehicle front lighting lamp system and car headlamp 6, it is ensured that night
Between traffic safety.
In the present embodiment, circuit of power factor correction 2, DC transfer circuit 3, low frequency inverter circuit 4 and headlamp starting
Circuit 5 is all-controlling power electronics device, and all-controlling power electronics device is a kind of both to can control it by controlling signal
Conducting, and can control the power electronic devices of its shutdown, can be realized by driving signal that control circuit 7 issues conducting and
Shutdown.
As shown in Fig. 2, circuit of power factor correction 2 includes inductance L1, NMOS tube S0 and NMOS tube S1 in the present embodiment,
One end of inductance L1 is connect with the anode of battery pack 1, the leakage of the other end of inductance L1 and the drain electrode of NMOS tube S0 and NMOS tube S1
Pole connection, the source electrode of NMOS tube S1 are connect with the cathode of battery pack 1, the input of the source electrode and DC transfer circuit 3 of NMOS tube S0
End connection.It can be improved the power factor of system by circuit of power factor correction 2, to reduce reactive power consumption, improve electricity
Road efficiency.
DC transfer circuit 3 includes NMOS tube S2, diode D and inductance L2, and the drain electrode of NMOS tube S2 is as DC converting
The input terminal of circuit 3 is connect with circuit of power factor correction 2, the source electrode of NMOS tube S2 and the cathode of diode D and inductance L2's
One end connection, the other end of inductance L2 are connect as the output end of DC transfer circuit 3 with the input terminal of low frequency inverter circuit 4,
The anode of diode D is connect with the cathode of battery pack 1.
Low frequency inverter circuit 4 includes NMOS tube S3, NMOS tube S4, NMOS tube S5 and NMOS tube S6, NMOS tube S3, NMOS tube
S4, NMOS tube S5 and NMOS tube S6 form unidirectional full bridge inverter, the input terminal of unidirectional full bridge inverter (in the accompanying drawings for
The connecting pin of NMOS tube S3 and NMOS tube S4 and the connecting pin of NMOS tube S4 and NMOS tube S5) as the defeated of low frequency inverter circuit 4
Enter end to connect with the output end of DC transfer circuit 3, the output end of unidirectional full bridge inverter (in the accompanying drawings for NMOS tube S3 with
The connecting pin of NMOS tube S4 and the connecting pin of NMOS tube S5 and NMOS tube S6) as low frequency inverter circuit 4 output end and preceding photograph
The input terminal of lamp start-up circuit 5 connects.
Headlamp start-up circuit 5 includes bilateral diode D2, capacitor C3 and transformer T1, and one end of bilateral diode D2 is made
It is connect for the input terminal of headlamp start-up circuit 5 with the output end of low frequency inverter circuit 4, for accessing alternating current, two-way two pole
The other end of pipe D2 is connect with one end of capacitor C3, and the other end of capacitor C3 is connect with the primary side of transformer T1, transformer T1
Secondary side connect with headlamp 6, the alternating current successively primary side through bilateral diode D2, capacitor C3 input transformer T1 becomes
Depressor T1 is exported by its secondary side to headlamp after exchanging electric boost, to drive headlamp 6.After headlamp 6 is lit, two
Pole pipe D2 is disconnected, and is that headlamp 6 is powered by low frequency inverter circuit 4.Existing head lamp system is in circuit of power factor correction 2
Said effect can not thoroughly be realized using diode, before not replaced and being repaired, when starting every time and is flame-out
A charge and discharge process will be done.Head lamp system provided by the invention can be realized each by the control signal of control circuit 7
The open and-shut mode of all-controlling power electronics device, can control to avoid existing head lamp system to NMOS tube S1 and NMOS tube S2
Fail the complete resection of problem of faulty circuit.
With reference to Fig. 3, second embodiment of the present invention provides before the automobile of the feedback of carrier state described in a kind of pair of embodiment one
The method that the state of illuminator system is monitored, this method comprises the following steps:
Whether control circuit 7 monitors headlamp start-up circuit 5 normal to detect its working condition；
When 5 working condition of headlamp start-up circuit is normal, control circuit 7 sends to instrument board 8 or vehicle audio 9 and indicates
Normal first feedback signal of car headlamp working state of system；
When 5 working condition exception of headlamp start-up circuit, control circuit 7 detects circuit of power factor correction 2, direct current becomes
The working condition of circuit 3 and low frequency inverter circuit 4 is changed, and inverse in circuit of power factor correction 2, DC transfer circuit 3 and low frequency
When the working condition on power transformation road 4 is normal, the second feedback for indicating that headlamp 6 damages is sent to instrument board 8 or vehicle audio 9
Signal, the working condition of any one in circuit of power factor correction 2, DC transfer circuit 3 and low frequency inverter circuit 4 are different
Chang Shi sends the third feedback signal for indicating the car headlamp system failure to instrument board 8 or vehicle audio 9；
When instrument board 8 or vehicle audio 9 receive the first feedback signal, the second feedback signal or third feedback signal, hair
Corresponding indication signal out.The indication signal that instrument board 8 is issued is the optical signal of indicator light in instrument board 8, and vehicle audio 9 issues
Indication signal be voice signal.
After control circuit 7 issues the second feedback signal, control circuit of power factor correction 2 disconnects battery pack 1 and direct current becomes
The connection between circuit 3 is changed, after issuing third feedback signal, circuit of power factor correction 2 is also controlled and disconnects battery pack 1 and direct current
Connection between translation circuit 3, thus disengagement failure circuit.
The embodiment of the present invention three provides a kind of car headlamp state indication method, includes the following steps:
Whether detection automobile has been carried out the operation for opening headlamp 6.When automobile has been carried out the operation of unlatching headlamp 6
When, execute the side that the state of the vehicle front lighting lamp system to carrier state as described above feedback in embodiment two is monitored
Method, meanwhile, execute following any operation:
Instrument board 8 illustrates that head lamp system working condition is normal when receiving the first feedback signal, and automobile is carried out
The operation for opening headlamp 6 illustrates that headlamp 6 is strictly open state, then lights full beam indicator lamp；Receiving second
When feedback signal, illustrates that headlamp 6 damages, then extinguish indicator light to remind driver's headlamp 6 to damage；It is anti-receiving third
When feedback signal, illustrate the car headlamp system failure, then indicator light is made to change colour or flash.Or vehicle audio 9 is receiving
When one feedback signal, the first voice signal is issued, to prompt headlamp normally-open, when receiving the second feedback signal,
Second sound signal is issued, to prompt headlamp to damage, when receiving third feedback signal, issues third voice signal,
To prompt head lamp system failure.
When automobile is not carried out the operation for opening headlamp 6, also execute anti-to carrier state as above in embodiment two
The method that the state of the vehicle front lighting lamp system of feedback is monitored, meanwhile, execute following any operation:
Instrument board 8 illustrates that head lamp system working condition is normal when receiving the first feedback signal, and automobile not by
The operation for implementing unlatching headlamp 6 illustrates that headlamp 6 is strictly OFF state, then extinguishes indicator light；Receiving the second feedback
When signal, illustrate headlamp 6 damage, and at this time automobile be not carried out open headlamp 6 operation, therefore light indicator light with
Driver's headlamp 6 is reminded to damage.When receiving third feedback signal, illustrate the car headlamp system failure, then makes to indicate
Lamp discoloration or flashing.Or vehicle audio 9 issues the first voice signal when receiving the first feedback signal, to prompt preceding shine
Lamp normally extinguishes, when receiving the second feedback signal, issues second sound signal and is being connect with prompting headlamp to damage
When receiving third feedback signal, third voice signal is issued, to prompt head lamp system failure.
Fig. 4 and Fig. 5 is respectively the headlamp state indication method indicated based on instrument board and is indicated based on vehicle audio
The flow diagram of headlamp state indication method.
First voice signal is for prompting headlamp normally-open or closing, and second sound signal is for prompting headlamp
It has been damaged that, third voice signal is for prompting the car headlamp system failure.The particular content of each voice signal can arbitrarily be set,
Corresponding meaning is understood as long as can be shown that.In the present invention, according to user's needs, Instruments Authorized disk 8 indicates headlamp state,
Or headlamp state is indicated using vehicle audio 9.The present invention will appreciate that by the real-time monitoring to vehicle front lighting lamp system
Whether the actual working state and vehicle front lighting lamp system of car headlamp work normally, it is ensured that traffic safety, especially to night
Evening driving plays the role of improving safety.
In the present embodiment, counted between control circuit 7 and instrument board 8 or vehicle audio 9 by wired or wireless way
According to communication.
Above-described embodiment is only preferred embodiment, the protection scope being not intended to limit the invention, in spirit of the invention
With any modifications, equivalent replacements, and improvements made within principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of vehicle front lighting lamp system of carrier state feedback, which is characterized in that including sequentially connected PFC electricity
Road, DC transfer circuit, low frequency inverter circuit and headlamp start-up circuit；
Output is inverse to the low frequency after the boost in voltage to setting value that the DC transfer circuit is used to export automobile batteries group
Power transformation road；
The low frequency inverter circuit is used to the voltage inversion after DC transfer circuit boosting be output after alternating current to institute
State headlamp start-up circuit；
The headlamp start-up circuit is used for output after the exchange electric boost to car headlamp, to drive the preceding photograph
Lamp；
The circuit of power factor correction is used to improve the power factor of system, and the control battery pack and the direct current become
Change the on-off connected between circuit；
The system also includes control circuit, the control circuit and the circuit of power factor correction, DC converting electricity
Road, the low frequency inverter circuit connect with the headlamp start-up circuit, and are connected to automobile instrument panel or vehicle audio, are used for
Monitor and control the circuit of power factor correction, the DC transfer circuit, the low frequency inverter circuit and the headlamp
The working condition of start-up circuit, and when monitoring that the headlamp start-up circuit working condition is normal, to instrument board or vehicle
It carries sound equipment and sends expression normal first feedback signal of car headlamp working state of system, when the headlamp starts electricity
Road working condition is abnormal, but the circuit of power factor correction, the DC transfer circuit and low frequency inverter circuit work
When state is normal, the second feedback signal for indicating that the headlamp damages is sent to instrument board or vehicle audio, before described
Illuminator start-up circuit working condition is abnormal, and the circuit of power factor correction, the DC transfer circuit and the low frequency are inverse
When having the working condition exception of at least one in power transformation road, sending to instrument board or vehicle audio indicates the car headlamp system
The third feedback signal for failure of uniting.
2. the vehicle front lighting lamp system of carrier state feedback as described in claim 1, which is characterized in that the PFC
Circuit, the DC transfer circuit, the low frequency inverter circuit and the headlamp start-up circuit are full-control type power electronic
Device.
3. the vehicle front lighting lamp system of carrier state feedback as claimed in claim 1 or 2, which is characterized in that the power factor
Correcting circuit includes inductance L1, NMOS tube S0 and NMOS tube S1, and one end of inductance L1 is connect with the anode of the battery pack, inductance
The other end of L1 is connect with the drain electrode of NMOS tube S0 and the drain electrode of NMOS tube S1, and the source electrode of NMOS tube S1 is negative with the battery pack
Pole connection, the source electrode of NMOS tube S0 are connect with the input terminal of the DC transfer circuit.
4. the vehicle front lighting lamp system of carrier state feedback as claimed in claim 1 or 2, which is characterized in that the DC converting
Circuit includes NMOS tube S2, diode D and inductance L2, the drain electrode of NMOS tube S2 as the DC transfer circuit input terminal and
The circuit of power factor correction connection, the source electrode of NMOS tube S2 are connect with one end of the cathode of diode D and inductance L2, inductance
The other end of L2 is connect as the output end of the DC transfer circuit with the input terminal of low frequency inverter circuit, and diode D is just
Pole is connect with the cathode of the battery pack.
5. the vehicle front lighting lamp system of carrier state feedback as claimed in claim 1 or 2, which is characterized in that the low frequency inversion
Circuit includes NMOS tube S3, NMOS tube S4, NMOS tube S5 and NMOS tube S6, NMOS tube S3, NMOS tube S4, NMOS tube S5 and NMOS
Pipe S6 forms unidirectional full bridge inverter, and the input terminal of the unidirectional full bridge inverter is as the defeated of the low frequency inverter circuit
The output end for entering end and DC transfer circuit connects, and the output end of the unidirectional full bridge inverter is as the low frequency inversion electricity
The output end on road is connect with the input terminal of the headlamp start-up circuit.
6. the vehicle front lighting lamp system of carrier state feedback as claimed in claim 1 or 2, which is characterized in that the headlamp opens
Dynamic circuit includes bilateral diode D2, capacitor C3 and transformer T1, and one end of bilateral diode D2 starts as the headlamp
The input terminal of circuit is connect with the output end of the low frequency inverter circuit, for accessing the alternating current, bilateral diode D2's
The other end is connect with one end of capacitor C3, and the other end of capacitor C3 is connect with the primary side of transformer T1, and transformer T1's is secondary
Side is connect with the headlamp, and the alternating current successively inputs the primary of the transformer T1 through bilateral diode D2, capacitor C3
Side, the transformer T1 will be exported by its secondary side to the headlamp after the exchange electric boost, to drive the preceding photograph
Lamp.
7. a kind of state of the vehicle front lighting lamp system to the carrier state feedback as described in any in claim 1 to 6 is supervised
The method of survey, which comprises the steps of:
Whether control circuit monitors headlamp start-up circuit normal to detect its working condition；
When the headlamp start-up circuit working condition is normal, the control circuit is sent to the instrument board or vehicle audio
Indicate normal first feedback signal of the car headlamp working state of system；
When the headlamp start-up circuit working condition exception, the control circuit detect the circuit of power factor correction,
The working condition of the DC transfer circuit and the low frequency inverter circuit, and in the circuit of power factor correction, described straight
When the working condition of stream translation circuit and the low frequency inverter circuit is normal, Xiang Suoshu instrument board or vehicle audio send table
The second feedback signal for showing headlamp damage, in the circuit of power factor correction, the DC transfer circuit and described
When the working condition exception of any one in low frequency inverter circuit, Xiang Suoshu instrument board or vehicle audio, which are sent, indicates the vapour
The third feedback signal of the Chinese herbaceous peony illuminator system failure；
The instrument board or vehicle audio receive first feedback signal, second feedback signal or third feedback
When signal, corresponding indication signal is issued.
8. the method for claim 7, which is characterized in that after the control circuit issues second feedback signal, control
Circuit of power factor correction processed disconnects the connection between the battery pack and the DC transfer circuit, issues the third feedback
After signal, also controls circuit of power factor correction and disconnect the connection between the battery pack and the DC transfer circuit.
9. a kind of car headlamp state indication method, which is characterized in that including
Whether detection automobile has been carried out the operation for opening headlamp；
When the automobile has been carried out the operation for opening headlamp, method as claimed in claim 7 or 8 is executed, meanwhile, it holds
The following any operation of row:
Instrument board lights full beam indicator lamp when receiving first feedback signal, is receiving second feedback signal
When, extinguish the indicator light, when receiving the third feedback signal, the indicator light is made to change colour or flash；Or it is vehicle-mounted
Sound equipment issues the first voice signal when receiving first feedback signal, when receiving second feedback signal, hair
Second sound signal out issues third voice signal when receiving the third feedback signal.
When the automobile is not carried out the operation for opening headlamp, method as claimed in claim 7 or 8 is executed, meanwhile, it holds
The following any operation of row:
Instrument board extinguishes the indicator light when receiving first feedback signal, is receiving second feedback signal
When, the indicator light is lighted, when receiving the third feedback signal, the indicator light is made to change colour or flash；Or it is vehicle-mounted
Sound equipment issues the second sound signal when receiving first feedback signal, is receiving second feedback signal
When, it issues first voice signal and issues the third voice signal when receiving the third feedback signal.
10. car headlamp state indication method as claimed in claim 9, which is characterized in that the control circuit with it is described
Data communication is carried out by wired or wireless way between instrument board or vehicle audio.
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| CN201910393344.6A CN110065430B (en) | 2019-05-13 | 2019-05-13 | Automobile headlamp system with state feedback and state monitoring method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910393344.6A CN110065430B (en) | 2019-05-13 | 2019-05-13 | Automobile headlamp system with state feedback and state monitoring method thereof |
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| CN110065430A true CN110065430A (en) | 2019-07-30 |
| CN110065430B CN110065430B (en) | 2020-07-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022142353A1 (en) * | 2020-12-28 | 2022-07-07 | 常州星宇车灯股份有限公司 | Vehicle light control device and method |
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| CN201018704Y (en) * | 2007-03-19 | 2008-02-06 | 余启发 | Digitalized intelligent power supply of electromagnetic induction lamp |
| US20180050631A1 (en) * | 2016-08-19 | 2018-02-22 | Sl Corporation | Automotive led driving apparatus |
| CN108569212A (en) * | 2017-10-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of fault diagnosis reponse system of automobile LED car light |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018704Y (en) * | 2007-03-19 | 2008-02-06 | 余启发 | Digitalized intelligent power supply of electromagnetic induction lamp |
| US20180050631A1 (en) * | 2016-08-19 | 2018-02-22 | Sl Corporation | Automotive led driving apparatus |
| CN108569212A (en) * | 2017-10-27 | 2018-09-25 | 常州星宇车灯股份有限公司 | A kind of fault diagnosis reponse system of automobile LED car light |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110065430B (en) | 2020-07-21 |
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