CN106809227B - The control system and control method of railroad vehicle and car light - Google Patents
The control system and control method of railroad vehicle and car light Download PDFInfo
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- CN106809227B CN106809227B CN201610838119.5A CN201610838119A CN106809227B CN 106809227 B CN106809227 B CN 106809227B CN 201610838119 A CN201610838119 A CN 201610838119A CN 106809227 B CN106809227 B CN 106809227B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D29/00—Lighting
Abstract
The invention discloses the control system and control method of a kind of railroad vehicle and car light, the control system includes：Current detection module, current detection module are used for the working current value for detecting car light in real time；Acquisition module, acquisition module are used to obtaining the current level of illumination of car light, and according to corresponding to obtaining current level of illumination car light target current value；Control module, control module are connected with current detection module and acquisition module respectively, and the current differential that control module is used between the working current value and target current value according to car light is controlled to car light.The system can according to current level of illumination determine corresponding to car light target current value, and car light is controlled according to the current differential between working current value and target current value, more grades control of car light can not only be realized, so that illumination more conforms to actual conditions, and closed-loop control can be realized, ensure the accuracy of control.
Description
Technical field
The present invention relates to technical field of vehicle, more particularly to a kind of control system of car light, a kind of having with the system
Rail vehicle, and a kind of control method of car light.
Background technology
At present, vehicle (including automobile, train and tramcar etc.) has become a kind of the most widely used traffic
Instrument, and with the horizontal continuous improvement of vehicle technology, user not only concentrate on focus the dynamic property, handling of vehicle
And security etc., and increasingly pay close attention to the overall performance of vehicle.For example, user have to the car light of vehicle it is higher
It is required that, it is desirable to the car light of vehicle more conforms to actual user's actual demand.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, it is an object of the present invention to propose a kind of control system of car light, the system can shine according to current
The target current value of car light corresponding to bright grade determination, and according to the current differential pair between working current value and target current value
Car light is controlled, and can not only realize more grades control of car light so that illumination more conforms to actual conditions, and can realize
Closed-loop control, ensure the accuracy of control.
It is another object of the present invention to propose a kind of railroad vehicle.
A further object of the present invention is to propose a kind of control method of car light.
To achieve the above object, the control system for a kind of car light that one aspect of the present invention embodiment proposes, including：Electric current is examined
Module is surveyed, the current detection module is used for the working current value for detecting car light in real time；Acquisition module, the acquisition module are used for
Obtain the current level of illumination of the car light, and according to corresponding to obtaining the current level of illumination car light target current
Value；Control module, the control module are connected with the current detection module and the acquisition module respectively, the control module
The car light is controlled for the current differential between the working current value according to the car light and the target current value.
The control system of car light according to embodiments of the present invention, detect the work electricity of car light in real time by current detection module
Flow valuve, and pass through the current level of illumination of acquisition module acquisition car light, and the car light according to corresponding to obtaining current level of illumination
Target current value, control module carries out according to the current differential between the working current value and target current value of car light to car light
Control.The system can according to corresponding to determining current level of illumination car light target current value, and according to working current value and
Current differential between target current value is controlled to car light, can not only realize more grades control of car light so that illumination
Actual conditions are more conformed to, and closed-loop control can be realized, ensure the accuracy of control.
According to one embodiment of present invention, working current value and the target of the control module according to the car light
When current differential between current value is controlled to the car light, wherein, if the working current value is more than the target
The absolute value of current differential between current value and the working current value and the target current value is more than the first default threshold
Value, then the control module turns down the operating current of the car light；If the working current value be less than the target current value,
It is described and the absolute value of the current differential between the working current value and the target current value is more than the second predetermined threshold value then
Control module judges that the car light breaks down, and sends alarm；If the working current value is less than target electricity
It is pre- that the absolute value of current differential between flow valuve and the working current value and the target current value is less than or equal to described second
If threshold value, then the control module heightens the operating current of the car light.
According to one embodiment of present invention, the current detection module includes：Current sampling circuit, the current sample
Circuit is used to the operating current signal of the car light being converted to voltage signal；Signal processing circuit, the signal processing circuit
Be connected with the current sampling circuit, the signal processing circuit be used for the voltage signal is handled with obtain with it is described
The corresponding voltage difference of the working current value of car light；Analog to digital conversion circuit, analog-digital conversion circuit as described respectively with the signal
Process circuit is connected with the control module, and analog-digital conversion circuit as described is used to the voltage difference being converted to data signal,
So that the control module obtains the working current value of the car light according to the data signal.
According to one embodiment of present invention, the current sampling circuit includes：First to fourth sampling resistor in parallel,
One end of any one sampling resistor is connected with power supply in first to fourth sampling resistor, first to fourth electricity
The other end of any one resistance is connected with the car light in resistance；Amplitude limiter circuit, the amplitude limiter circuit and described first to the
Four sampling resistors are in parallel；First electric capacity, first electric capacity is in parallel with the amplitude limiter circuit, and one end of first electric capacity
By being grounded after the second electric capacity, the other end of first electric capacity is followed by described by the 3rd electric capacity.
According to one embodiment of present invention, the amplitude limiter circuit includes the first diode and the two or two pole of reverse parallel connection
Pipe.
According to one embodiment of present invention, the signal processing circuit includes：First resistor, the one of the first resistor
End is connected with one end of first electric capacity；The second resistance of series connection and the 4th electric capacity, one end of the second resistance with it is described
The other end of first electric capacity is connected, and the other end of the second resistance is connected with one end of the 4th electric capacity, the 4th electricity
The other end ground connection of appearance；Operational amplifier, the negative input end of the operational amplifier are connected with the other end of the first resistor,
The negative input end of the operational amplifier is also by defeated with the operational amplifier after the 3rd resistor of parallel connection and the 5th electric capacity
Go out end to be connected, the positive input terminal of the operational amplifier is connected by the 4th resistance with default power supply, the operational amplifier
Output end is connected by the 5th resistance with analog-digital conversion circuit as described.
According to one embodiment of present invention, the level of illumination of the car light includes multiple level of illuminations, wherein, Mei Gezhao
The brightness of the car light corresponding to bright grade is different.
To achieve the above object, another aspect of the present invention embodiment proposes a kind of railroad vehicle, and it includes above-mentioned car
The control system of lamp.
Railroad vehicle according to embodiments of the present invention, can be according to working as front lit by the control system of above-mentioned car light
The target current value of car light corresponding to grade determination, and according to the current differential between working current value and target current value to car
Lamp is controlled, and can not only realize more grades control of car light so that illumination more conforms to actual conditions, and can realize and close
Ring controls, and ensures the accuracy of control.
To achieve the above object, another aspect of the invention embodiment proposes a kind of control method of car light, including following
Step：The working current value of detection car light in real time；The current level of illumination of the car light is obtained, and according to described when front lit etc.
The target current value of the car light corresponding to level acquisition；And the working current value according to the car light and the target current value
Between current differential the car light is controlled.
The control method of car light according to embodiments of the present invention, detects the working current value of car light in real time, and obtains car light
Current level of illumination, and according to current level of illumination obtain corresponding to car light target current value, then, according to car light
Current differential between working current value and target current value is controlled to car light.This method can be according to current level of illumination
It is determined that the target current value of corresponding car light, and car light is entered according to the current differential between working current value and target current value
Row control, it can not only realize more grades control of car light so that illumination more conforms to actual conditions, and can realize closed loop control
System, ensure the accuracy of control.
According to one embodiment of present invention, the working current value according to the car light and the target current value it
Between current differential the car light is controlled, including：If the working current value is more than the target current value and institute
The absolute value for stating the current differential between working current value and the target current value is more than the first predetermined threshold value, then turns down described
The operating current of car light；If the working current value is less than the target current value and the working current value and the mesh
The absolute value of current differential between mark current value is more than the second predetermined threshold value, then judges that the car light breaks down, and send
Alarm；If the working current value is less than the target current value and the working current value and the target current
The absolute value of current differential between value is less than or equal to second predetermined threshold value, then heightens the operating current of the car light.
According to one embodiment of present invention, the level of illumination of the car light includes multiple level of illuminations, wherein, Mei Gezhao
The brightness of the car light corresponding to bright grade is different.
Brief description of the drawings
Fig. 1 is the block diagram of the control system of car light according to embodiments of the present invention；
Fig. 2 is the block diagram of the control system of car light according to an embodiment of the invention；
Fig. 3 is the circuit diagram of current detection module according to an embodiment of the invention；
Fig. 4 is the flow chart of the control method of car light according to embodiments of the present invention；And
Fig. 5 is the block diagram of railroad vehicle according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
With reference to the accompanying drawings come the control system of the car light that describes to propose according to embodiments of the present invention, there is the control system
Railroad vehicle and car light control method.
Fig. 1 is the block diagram of the control system of car light according to embodiments of the present invention.As shown in figure 1, the car light
Control system may include：Current detection module 10, acquisition module 20 and control module 30.
Wherein, current detection module 10 is used for the working current value for detecting car light 40 in real time.Acquisition module 20 is used to obtain
The current level of illumination of car light 40, and according to current level of illumination obtain corresponding to car light 40 target current value.Control module
30 are connected with current detection module 10 and acquisition module 20 respectively, control module 30 be used for according to the working current value of car light 40 with
Current differential between target current value is controlled to car light 40.
In an embodiment of the present invention, the level of illumination of car light 40 may include multiple level of illuminations, wherein, each illumination etc.
The brightness of car light 40 is different corresponding to level.
Specifically, car light 40 can be the illuminating lamp in compartment, and its level of illumination can be divided into multiple level of illuminations.Example
Such as, level of illumination can be divided into by multiple level of illuminations according to the time, for example, level of illumination can be divided into according to the time
Two level of illuminations, in summer, in the morning 7:00- evenings 6:In 00 period, the level of illumination of illuminating lamp is the first illumination
Grade, the brightness of illuminating lamp is relatively low corresponding to the level of illumination, and at night 6:00- mornings next day 7:In 00 period, shine
The level of illumination of bright lamp is the second level of illumination, and the brightness of illuminating lamp is higher corresponding to the level of illumination.
But, it is contemplated that cloudy day on daytime, vehicle process of passing through tunnel on daytime or night vehicle are in very strong place of illumination etc.
When, if dividing level of illumination with the time, the brightness of illuminating lamp may be caused too high or too low, accordingly it is also possible to root
Level of illumination is divided into multiple level of illuminations according to intensity of illumination.For example, level of illumination can be divided into two level of illuminations：First
Level of illumination and the second level of illumination, wherein, the brightness of the first level of illumination is relatively low, institute in compartment when correspondingly intensity of illumination is stronger
The visualization normal brightness needed, the brightness of the second level of illumination is higher, required visual in compartment when corresponding intensity of illumination is relatively low
Change normal brightness.Specifically divide how many individual level of illuminations and how to divide, can be demarcated according to actual conditions, can also
Tested and obtained by many experiments, so that the brightness of illuminating lamp more conforms to actual conditions, is not limited here specifically.
It is assumed that level of illumination is currently divided into two level of illuminations according to the time, and current time is at night 10:
30, then the current level of illumination that interior vehicular illumination lamp is got according to current time is second illumination etc. by acquisition module 20
Level, the target current value of corresponding illuminating lamp is the second target current value (larger), and control module 30 is according to the target current value
Corresponding control signal is exported to illuminating lamp, meanwhile, current detection module 10 detects the working current value of illuminating lamp in real time, control
Module 30 carries out closed-loop control according to the current differential between the working current value and target current value of illuminating lamp to illuminating lamp.
When current time is morning 7:When 00, acquisition module 20 works as front lit by get illuminating lamp according to current time
Grade is the first level of illumination, and now the target current value of corresponding illuminating lamp is first object current value (smaller), controls mould
Block 30 exports corresponding control signal to illuminating lamp according to the target current value, meanwhile, current detection module 10 in real time shine by detection
The working current value of bright lamp, control module 30 is according to the current differential pair between the working current value and target current value of illuminating lamp
Illuminating lamp carries out closed-loop control.
Assume again that, level of illumination is currently divided into two level of illuminations according to intensity of illumination, then light can be first passed through
Current vehicle external environment intensity of illumination is obtained according to sensor, then, the illumination according to corresponding to obtaining the intensity of illumination of acquisition module 20
The current level of illumination of lamp.For example, intensity of illumination than it is relatively low when, acquisition module 20 will get the current level of illumination of illuminating lamp
For the second level of illumination, the target current value of corresponding illuminating lamp is the second target current value (larger), the basis of control module 30
The target current value exports corresponding control signal to illuminating lamp, meanwhile, current detection module 10 detects the work of illuminating lamp in real time
Make current value, control module 30 is entered according to the current differential between the working current value and target current value of illuminating lamp to illuminating lamp
Row closed-loop control；When intensity of illumination is higher, the current level of illumination for getting illuminating lamp is the first illumination by acquisition module 20
Grade, the target current value of corresponding illuminating lamp is first object current value (smaller), and control module 30 is according to the target current
Value exports corresponding control signal to illuminating lamp, meanwhile, current detection module 10 detects the working current value of illuminating lamp in real time, control
Molding block 30 carries out closed-loop control according to the current differential between the working current value and target current value of illuminating lamp to illuminating lamp.
Wherein, control module 30 has a variety of to the control mode of car light 40, for example, control module 30 can use PWM
(Pulse Width Modulation, pulse width modulation) mode is controlled to car light 40.
Therefore, the control system of car light according to embodiments of the present invention, can be according to corresponding to determining current level of illumination
The target current value of car light, and car light is controlled according to the current differential between working current value and target current value, no
More grades control of car light can only be realized so that illumination more conforms to actual conditions, and can realize closed-loop control, ensures control
The accuracy of system.
According to one embodiment of present invention, control module 30 according to the working current value of car light 40 and target current value it
Between current differential when being controlled to car light 40, wherein, if working current value is more than target current value and working current value
The absolute value of current differential between target current value is more than the first predetermined threshold value, then control module 30 turns down the work of car light 40
Make electric current；If working current value is less than the current differential between target current value and working current value and target current value
Absolute value is more than the second predetermined threshold value, then control module 30 judges that car light 40 breaks down, and sends alarm；If work
The absolute value that current value is less than current differential between target current value and working current value and target current value is less than or equal to the
Two predetermined threshold values, then control module 30 heighten the operating current of car light.Wherein, the first predetermined threshold value and the second predetermined threshold value can be with
Demarcated according to actual conditions.
Specifically, when the level of illumination of car light 40 switches to the first level of illumination from the second level of illumination, due to second
The target current value of car light 40 corresponding to level of illumination is more than the target current value of car light 40 corresponding to the first level of illumination, because
This, in switching, the working current value of car light 40 will be greater than the target current value of car light 40, and control module 30 will control car light 40
Input current reduce so that car light 40 operating current reduce, and then reduce car light 40 brightness.
When the level of illumination of car light 40 switches to the second level of illumination from the first level of illumination, due to the second level of illumination
The target current value of corresponding car light 40 is more than the target current value of car light 40 corresponding to the first level of illumination, therefore, is switching
When, the working current value of car light 40 will will control the input electricity of car light 40 less than the target current value of car light 40, control module 30
Stream rise.But when the working current value of car light 40 is less than the target current value of car light 40, also, the working current value and mesh
The absolute value of current differential between mark current value is more than the second predetermined threshold value, then illustrates that car light 40 breaks down, control module
30 will send alarm.For example, when car light 40 damages or open circuit fault occurs, the working current value of car light 40 will be 0,
Now working current value is much smaller than target current value, and control module 30 may determine that car light 40 has failure.
Therefore, by the closed-loop control to car light, the real-time regulation to vehicle lamp brightness can not only be realized, and can have
Effect judges whether car light breaks down.
The concrete structure of current detection module in the control system of the car light of the embodiment of the present invention is described in detail below.
According to one embodiment of present invention, as shown in Fig. 2 current detection module 10 may include：Current sampling circuit 11,
Signal processing circuit 12 and analog to digital conversion circuit 13.Wherein, current sampling circuit 11 is used for the operating current signal of car light 40
Voltage signal is converted to, signal processing circuit 12 is connected with current sampling circuit 10, and signal processing circuit 12 is used to believe voltage
Number handled to obtain the voltage difference corresponding with the working current value of car light 40.Analog to digital conversion circuit 13 respectively with signal
Process circuit 12 is connected with control module 30, and analog to digital conversion circuit 13 is used to voltage difference being converted to data signal, so that control
Molding block 30 obtains the working current value of car light 40 according to data signal.
Specifically, can be believed by modes such as sampling resistor or current transformers to obtain the operating current of car light 40
Number, processing etc. is then amplified to the operating current signal, exports analog voltage signal, will be simulated finally by analog-to-digital conversion
Voltage signal is converted to digital voltage signal and sent to control module 30, control module 30 to be calculated according to the digital voltage signal
The working current value of actual car light 40.
According to one embodiment of present invention, as shown in figure 3, current sampling circuit 11 may include：In parallel first is to the
Four sampling resistor RS1, RS2, RS3 and RS4, amplitude limiter circuit U1, the first electric capacity C1, the second electric capacity C2 and the 3rd electric capacity C3.Wherein,
GND is connected with power supply for one end of any one sampling resistor in first to fourth sampling resistor, in first to fourth resistance
The other end of any one resistance is connected with car light 40.Amplitude limiter circuit U1 is in parallel with first to fourth sampling resistor, the first electricity
It is in parallel with amplitude limiter circuit U1 to hold C1, and the first electric capacity C1 one end, by being grounded after the second electric capacity C2, the first electric capacity C1's is another
One end after the 3rd electric capacity C3 by being grounded.
Wherein, amplitude limiter circuit U1 may include the first diode D1 and the second diode D2 of reverse parallel connection.
Further, as shown in figure 3, signal processing circuit 12 may include：First resistor R1, second resistance R2, the 4th electricity
Hold C4, operational amplifier U2,3rd resistor R3, the 5th electric capacity C5 and the 4th resistance R4.Wherein, first resistor R1 one end and the
One electric capacity C1 one end is connected, and second resistance R2 and the 4th electric capacity C4 series connection, second resistance R2 one end is with the first electric capacity C1's
The other end is connected, and the second resistance R2 other end is connected with the 4th electric capacity C4 one end, the 4th electric capacity C4 other end ground connection.Fortune
The negative input end IN- for calculating amplifier U2 is connected with the first resistor R1 other end, and operational amplifier U2 negative input end IN- is also logical
It is connected after crossing the 3rd resistor R3 and the 5th electric capacity C5 of parallel connection with operational amplifier U2 output end, operational amplifier U2's is just defeated
Enter to hold IN+ to be connected by the 4th resistance R4 with default power supply VCC1 (voltage can be 2.5V), operational amplifier U2 output end
It is connected by the 5th resistance R5 with the input ADC1 of analog to digital conversion circuit 13.
In addition, operational amplifier U2 positive source is connected with default power supply VCC2 (voltage can be 3.3V), and also
Voltage stabilizing is carried out by the 6th electric capacity C6 and the 7th electric capacity C7 of parallel connection, operational amplifier U2 power cathode is directly grounded.It is default
Power supply VCC1 can carry out voltage conversion acquisition by voltage stabilizing chip U3 to default power supply VCC2.
Specifically, as shown in figure 3, passing through first to fourth sampling resistor RS1, RS2, RS3 and RS4 real-time sampling car light
Current signal in 40 performance loop, then, the difference amplifier being made up of operational amplifier U2 and other components obtain
The voltage difference between first to fourth sampling resistor RS1, RS2, RS3 and RS4 voltage and reference voltage is obtained, finally, is passed through
Voltage difference is fed back to control module 30 by analog-digital converter.Control module 30 obtains the reality of car light 40 according to the voltage difference
Working current value, and pwm signal is adjusted according to the current differential between real work current value and target current value in real time, with right
Car light 40 carries out closed-loop control.
In summary, the control system of car light according to embodiments of the present invention, car is detected by current detection module in real time
The working current value of lamp, and obtained by the current level of illumination of acquisition module acquisition car light, and according to current level of illumination
The target current value of corresponding car light, control module is according to the current differential between the working current value and target current value of car light
Car light is controlled.The system can according to corresponding to determining current level of illumination car light target current value, and according to work
The current differential made between current value and target current value is controlled to car light, can not only realize more grade controls of car light
System so that illumination more conforms to actual conditions, and can realize closed-loop control, ensures the accuracy of control.Moreover, by car
The closed-loop control of lamp, the real-time regulation to vehicle lamp brightness can not only be realized, and can effectively judge whether car light occurs
Failure.
Fig. 4 is the flow chart of the control method of car light according to embodiments of the present invention, as shown in figure 4, the control of the car light
Method may include following steps：
S1, the working current value of car light is detected in real time.
Specifically, the operating current of car light can be detected in real time by modes such as sampling resistor or current transformers
Value.
S2, obtains the current level of illumination of car light, and according to corresponding to obtaining current level of illumination car light target current
Value.
In an embodiment of the present invention, the level of illumination of car light includes multiple level of illuminations, wherein, each level of illumination pair
The brightness for the car light answered is different.
S3, car light is controlled according to the current differential between the working current value and target current value of car light.
Specifically, car light can be the illuminating lamp in compartment, and its level of illumination can be divided into multiple level of illuminations.For example,
Level of illumination can be divided into by multiple level of illuminations according to the time, for example, level of illumination can be divided into two according to the time
Individual level of illumination, in summer, in the morning 7:00- evenings 6:In 00 period, the level of illumination of illuminating lamp is first illumination etc.
Level, the brightness of illuminating lamp is relatively low corresponding to the level of illumination, and at night 6:00- mornings next day 7:In 00 period, illumination
The level of illumination of lamp is the second level of illumination, and the brightness of illuminating lamp is higher corresponding to the level of illumination.
But, it is contemplated that cloudy day on daytime, vehicle process of passing through tunnel on daytime or night vehicle are in very strong place of illumination etc.
When, if dividing level of illumination with the time, the brightness of illuminating lamp may be caused too high or too low, accordingly it is also possible to root
Level of illumination is divided into multiple level of illuminations according to intensity of illumination.For example, level of illumination can be divided into two level of illuminations：First
Level of illumination and the second level of illumination, wherein, the brightness of the first level of illumination is relatively low, institute in compartment when correspondingly intensity of illumination is stronger
The visualization normal brightness needed, the brightness of the second level of illumination is higher, required visual in compartment when corresponding intensity of illumination is relatively low
Change normal brightness.Specifically divide how many individual level of illuminations and how to divide, can be demarcated according to actual conditions, can also
Tested and obtained by many experiments, so that the brightness of illuminating lamp more conforms to actual conditions, is not limited here specifically.
It is assumed that level of illumination is currently divided into two level of illuminations according to the time, and current time is at night 10:
30, then according to current time by the current level of illumination for getting interior vehicular illumination lamp it is the second level of illumination, corresponding photograph
The target current value of bright lamp is the second target current value (larger), and controller exports corresponding control letter according to the target current value
Number to illuminating lamp, meanwhile, detect the working current value of illuminating lamp in real time, controller is according to the working current value and target of illuminating lamp
Current differential between current value carries out closed-loop control to illuminating lamp.
When current time is morning 7:When 00, according to current time by get illuminating lamp current level of illumination be first
Level of illumination, now the target current value of corresponding illuminating lamp is first object current value (smaller), and controller is according to the target
Current value exports corresponding control signal to illuminating lamp, meanwhile, the working current value of illuminating lamp is detected in real time, and controller is according to photograph
Current differential between the working current value and target current value of bright lamp carries out closed-loop control to illuminating lamp.
Assume again that, level of illumination is currently divided into two level of illuminations according to intensity of illumination, then light can be first passed through
Current vehicle external environment intensity of illumination is obtained according to sensor, then the illuminating lamp according to corresponding to obtaining the intensity of illumination works as front lit
Grade.For example, intensity of illumination than it is relatively low when, be the second level of illumination by the current level of illumination for getting illuminating lamp, it is corresponding
The target current value of illuminating lamp is the second target current value (larger), and controller exports corresponding control according to the target current value
Signal to illuminating lamp, meanwhile, detect the working current value of illuminating lamp in real time, controller is according to the working current value and mesh of illuminating lamp
The current differential marked between current value carries out closed-loop control to illuminating lamp；When intensity of illumination is higher, illuminating lamp will be got
Current level of illumination is the first level of illumination, and the target current value of corresponding illuminating lamp is first object current value (smaller), control
Device processed exports corresponding control signal to illuminating lamp according to the target current value, meanwhile, the real-time operating current for detecting illuminating lamp
Value, controller carry out closed loop control according to the current differential between the working current value and target current value of illuminating lamp to illuminating lamp
System.
Wherein, controller has a variety of to the control mode of car light, it is for instance possible to use PWM mode is controlled to car light.
Therefore, the control method of car light according to embodiments of the present invention, can be according to corresponding to determining current level of illumination
The target current value of car light, and car light is controlled according to the current differential between working current value and target current value, no
More grades control of car light can only be realized so that illumination more conforms to actual conditions, and can realize closed-loop control, ensures control
The accuracy of system.
According to one embodiment of present invention, according to the current differential between the working current value and target current value of car light
Car light is controlled, including：If working current value is more than between target current value and working current value and target current value
The absolute value of current differential be more than the first predetermined threshold value, then turn down the operating current of car light；If working current value is less than mesh
The absolute value of mark current value and the current differential between working current value and target current value is more than the second predetermined threshold value, then sentences
Disconnected car light breaks down, and sends alarm；If working current value is less than target current value and working current value and target
The absolute value of current differential between current value is less than or equal to the second predetermined threshold value, then heightens the operating current of car light.
Specifically, when the level of illumination of car light switches to the first level of illumination from the second level of illumination, due to the second photograph
The target current value of car light corresponding to bright grade is more than the target current value of car light corresponding to the first level of illumination, therefore, is cutting
When changing, the working current value of car light will be greater than the target current value of car light, and controller reduces the input current for controlling car light, from
And the operating current of car light is reduced, and then reduce the brightness of car light.
When the level of illumination of car light switches to the second level of illumination from the first level of illumination, due to the second level of illumination pair
The target current value for the car light answered is more than the target current value of car light corresponding to the first level of illumination, therefore, in switching, car light
Working current value will be less than the target current value of car light, controller will control the input current rise of car light.But work as car light
Working current value be less than the target current value of car light, also, the current differential between the working current value and target current value
Absolute value be more than the second predetermined threshold value, then illustrate that car light breaks down, controller will send alarm.For example, work as car light
When damage or generation open circuit fault, the working current value of car light will be 0, and now working current value is much smaller than target current value,
Controller may determine that car light has failure.
Therefore, by the closed-loop control to car light, the real-time regulation to vehicle lamp brightness can not only be realized, and can have
Effect judges whether car light breaks down.
The control method of car light according to embodiments of the present invention, detects the working current value of car light in real time, and obtains car light
Current level of illumination, and according to current level of illumination obtain corresponding to car light target current value, then, according to car light
Current differential between working current value and target current value is controlled to car light.This method can be according to current level of illumination
It is determined that the target current value of corresponding car light, and car light is entered according to the current differential between working current value and target current value
Row control, it can not only realize more grades control of car light so that illumination more conforms to actual conditions, and can realize closed loop control
System, ensure the accuracy of control.Moreover, by the closed-loop control to car light, the real-time tune to vehicle lamp brightness can not only be realized
Section, and can effectively judge whether car light breaks down.
Fig. 5 is the block diagram of railroad vehicle according to embodiments of the present invention.As shown in figure 5, the railroad vehicle 1000
Control system 100 including above-mentioned car light.
Wherein, above description has been described in detail in the control system 100 of car light, repeats no more here, and above-mentioned car light
Control method can equally be well applied in the railroad vehicle 1000 of the disclosure, specifically also no longer be described in detail here.
Railroad vehicle according to embodiments of the present invention, can be according to working as front lit by the control system of above-mentioned car light
The target current value of car light corresponding to grade determination, and according to the current differential between working current value and target current value to car
Lamp is controlled, and can not only realize more grades control of car light so that illumination more conforms to actual conditions, and can realize and close
Ring controls, and ensures the accuracy of control.Moreover, by the closed-loop control to car light, the reality to vehicle lamp brightness can not only be realized
When adjust, and can effectively judge whether car light breaks down.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (9)
- A kind of 1. control system of car light, it is characterised in that including：Current detection module, the current detection module are used for the working current value for detecting car light in real time；Acquisition module, the acquisition module are used for the current level of illumination for obtaining the car light, and according to described when front lit etc. The target current value of the car light corresponding to level acquisition；Control module, the control module are connected with the current detection module and the acquisition module respectively, the control mould Block is used to control the car light according to the current differential between the working current value of the car light and the target current value System；Wherein, the control module is according to the current differential pair between the working current value of the car light and the target current value When the car light is controlled, wherein,If the working current value is more than between the target current value and the working current value and the target current value The absolute value of current differential be more than the first predetermined threshold value, then the control module turns down the operating current of the car light；If the working current value is less than between the target current value and the working current value and the target current value The absolute value of current differential be more than the second predetermined threshold value, then the control module judges that the car light breaks down, and sends Alarm；If the working current value is less than between the target current value and the working current value and the target current value The absolute value of current differential be less than or equal to second predetermined threshold value, then the control module heightens the work electricity of the car light Stream.
- 2. the control system of car light as claimed in claim 1, it is characterised in that the current detection module includes：Current sampling circuit, the current sampling circuit are used to the operating current signal of the car light being converted to voltage signal；Signal processing circuit, the signal processing circuit are connected with the current sampling circuit, and the signal processing circuit is used for The voltage signal is handled to obtain the voltage difference corresponding with the working current value of the car light；Analog to digital conversion circuit, analog-digital conversion circuit as described are connected with the signal processing circuit and the control module respectively, institute State analog to digital conversion circuit to be used to the voltage difference being converted to data signal, so that the control module is believed according to the numeral Number obtain the working current value of the car light.
- 3. the control system of car light as claimed in claim 2, it is characterised in that the current sampling circuit includes：First to fourth sampling resistor in parallel, one end of any one sampling resistor is equal in first to fourth sampling resistor It is connected, the other end of any one resistance is connected with the car light in first to fourth resistance with power supply；Amplitude limiter circuit, the amplitude limiter circuit are in parallel with first to fourth sampling resistor；First electric capacity, first electric capacity is in parallel with the amplitude limiter circuit, and one end of first electric capacity passes through the second electricity It is grounded after appearance, the other end of first electric capacity is followed by described by the 3rd electric capacity.
- 4. the control system of car light as claimed in claim 3, it is characterised in that the amplitude limiter circuit includes the of reverse parallel connection One diode and the second diode.
- 5. the control system of car light as claimed in claim 3, it is characterised in that the signal processing circuit includes：First resistor, one end of the first resistor are connected with one end of first electric capacity；The second resistance of series connection and the 4th electric capacity, one end of the second resistance are connected with the other end of first electric capacity, institute The other end for stating second resistance is connected with one end of the 4th electric capacity, the other end ground connection of the 4th electric capacity；Operational amplifier, the negative input end of the operational amplifier are connected with the other end of the first resistor, and the computing is put The negative input end of big device after the 3rd resistor of parallel connection and the 5th electric capacity with the output end of the operational amplifier also by being connected, institute The positive input terminal for stating operational amplifier is connected by the 4th resistance with default power supply, and the output end of the operational amplifier passes through Five resistance are connected with analog-digital conversion circuit as described.
- 6. the control system of car light as claimed in claim 1, it is characterised in that the level of illumination of the car light includes multiple photographs Bright grade, wherein, the brightness of the car light corresponding to each level of illumination is different.
- 7. a kind of railroad vehicle, it is characterised in that include the control system of the car light as any one of claim 1-6.
- 8. a kind of control method of car light, it is characterised in that comprise the following steps：The working current value of detection car light in real time；Obtain the current level of illumination of the car light, and according to corresponding to obtaining the current level of illumination car light target Current value；AndThe car light is controlled according to the current differential between the working current value of the car light and the target current value；Wherein, the current differential according between the working current value of the car light and the target current value is to the car light It is controlled, including：If the working current value is more than between the target current value and the working current value and the target current value The absolute value of current differential be more than the first predetermined threshold value, then turn down the operating current of the car light；If the working current value is less than between the target current value and the working current value and the target current value The absolute value of current differential be more than the second predetermined threshold value, then judge that the car light breaks down, and send alarm；If the working current value is less than between the target current value and the working current value and the target current value The absolute value of current differential be less than or equal to second predetermined threshold value, then heighten the operating current of the car light.
- 9. the control method of car light as claimed in claim 8, it is characterised in that the level of illumination of the car light includes multiple photographs Bright grade, wherein, the brightness of the car light corresponding to each level of illumination is different.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610838119.5A CN106809227B (en) | 2016-09-21 | 2016-09-21 | The control system and control method of railroad vehicle and car light |
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|---|---|---|---|
| CN201610838119.5A CN106809227B (en) | 2016-09-21 | 2016-09-21 | The control system and control method of railroad vehicle and car light |
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| CN106809227B true CN106809227B (en) | 2018-01-23 |
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| CN109348588B (en) * | 2018-12-17 | 2021-10-15 | 海浦科技(深圳)有限公司 | Constant power control method and device for LED lamp |
| CN113630938A (en) * | 2021-08-09 | 2021-11-09 | 常州青葵智能科技有限公司 | LED car lamp fault online diagnosis method |
| CN114900552A (en) * | 2022-04-13 | 2022-08-12 | 支付宝(杭州)信息技术有限公司 | Driving reminding pushing processing method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202357957U (en) * | 2011-11-28 | 2012-08-01 | 长安大学 | Brightness regulating and controlling device of headlamp of automobile |
| CN203005235U (en) * | 2012-11-28 | 2013-06-19 | 比亚迪股份有限公司 | Backlight regulation device for vehicle-mounted meter |
| CN103707769A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | Transparent vehicle-mounted digital instrument controller and display brightness controlling method thereof |
| KR20150069312A (en) * | 2013-12-13 | 2015-06-23 | 현대자동차주식회사 | A vehicle interconnection terminal illumination control system and a control method |
| CN205131078U (en) * | 2015-11-30 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Bias light circuit of vehicle audio and air conditioner display screen |
-
2016
- 2016-09-21 CN CN201610838119.5A patent/CN106809227B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202357957U (en) * | 2011-11-28 | 2012-08-01 | 长安大学 | Brightness regulating and controlling device of headlamp of automobile |
| CN203005235U (en) * | 2012-11-28 | 2013-06-19 | 比亚迪股份有限公司 | Backlight regulation device for vehicle-mounted meter |
| KR20150069312A (en) * | 2013-12-13 | 2015-06-23 | 현대자동차주식회사 | A vehicle interconnection terminal illumination control system and a control method |
| CN103707769A (en) * | 2014-01-02 | 2014-04-09 | 上海理工大学 | Transparent vehicle-mounted digital instrument controller and display brightness controlling method thereof |
| CN205131078U (en) * | 2015-11-30 | 2016-04-06 | 安徽江淮汽车股份有限公司 | Bias light circuit of vehicle audio and air conditioner display screen |
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