CN104184193B - Charging pile control guide and plug detection logic circuit and test device thereof - Google Patents
Charging pile control guide and plug detection logic circuit and test device thereof Download PDFInfo
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- CN104184193B CN104184193B CN201410437839.1A CN201410437839A CN104184193B CN 104184193 B CN104184193 B CN 104184193B CN 201410437839 A CN201410437839 A CN 201410437839A CN 104184193 B CN104184193 B CN 104184193B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
A charging pile control guide and plug detection logic circuit comprises a controller, the controller is connected with a PWM generation circuit, the -12V voltage output end of a 12V voltage generation circuit is connected with the -12V voltage control end of the PWM generation circuit, +12V voltage output end of the 12V voltage generation circuit is connected with the +12V voltage control end of the PWM generation circuit, and the input end of a signal collection circuit is connected with the output end of the PWM generation circuit. By the adoption of the structure, the control guide and plug detection logic circuit is arranged in a charging pile circuit, the control guide and plug detection logic circuit can be matched to detect whether a charging cable is correctly connected with an electric automobile or not, when the charging cable is correctly connected with the electric automobile, a charging pile is started to be charged, the charging accident caused by charging of the charging pile under the condition that the charging pile is not correctly connected with the cable is avoided, and the potential safety hazard is eliminated.
Description
Technical field:
The present invention relates to a kind of charging pile control to guide and plug detection logic circuit and test device thereof.
Background technology:
Along with low-carbon economy becomes the theme of China's economic development, electric automobile is as new forms of energy strategy and intelligence
The important component part of energy electrical network, will become Chinese Automobile Industry ' and the emphasis of energy industry development from now on.
Ev industry is a systematic engineering of business, and charging system for electric automobile is one of its key link.
At present, owing to there is the charge cable of Multiple Type on the market, and do not have and it in charging pile circuit
The decision circuitry matched, the therefore many problems of existence during charging: 1, the charging gun on charging pile
After being connected with electric automobile, electric automobile can detect whether correctly to connect, if the most correctly connected automatically
Connecing, electric motor car will not accept electric energy, but now charging pile circuit cannot judge charging gun whether with electronic vapour
Car correctly connects, if charging pile is switched on charging in the case of cable fails correctly to be connected with charging pile,
Easily cause charging accident, as there will be Arcing phenomenon between charging gun and the charging inlet of electric automobile,
There is potential safety hazard；2, when the charging gun of charging pile is connected with electric automobile, charging pile circuit cannot will fill
The charging current notice electric automobile that electricity stake is provided, electric automobile cannot learn what charging pile can be provided by
It is charged in the case of electric current, if the electric current that charging pile is provided is more than the rated charge of electric automobile
Stream, then can cause damage to electric automobile in charging process.
Summary of the invention:
The invention provides a kind of charging pile to control to guide and plug detection logic circuit and test device thereof, it
Reasonable in design, arranges control in charging pile circuit and guides and plug detection logic circuit, control to guide
Can cooperate with plug detection logic circuit and detect whether charge cable is connected correctly with electric automobile,
When after correct connection, charging pile is then turned on charging, it is to avoid charging pile be not connected correct situation with cable
The most just it is charged causing charging accident, eliminates potential safety hazard；Patrol it addition, control to guide with plug detection
Collect the charging current notice electric motor car that charging pile can be provided by circuit by the form of pwm pulse, if filled
The electricity charging current that provided of stake is excessive, electric automobile does not the most accept charging, it is to avoid electric automobile accepted
The battery of electric automobile is caused damage by big electric current, it is to avoid the generation of security incident, solves existing skill
Problem present in art.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of charging pile controls to guide and plug detection logic circuit, including a controller, controller and a PWM
Generation circuit is connected, and-12V the voltage output end of a 12V voltage generation circuit produces the-12V of circuit with PWM
Voltage controling end is connected, and+12V the voltage output end of 12V voltage generation circuit produces the+12V of circuit with PWM
Voltage controling end is connected, and the outfan that the input of a signal acquisition circuit produces circuit with PWM is connected, control
Device processed is connected with the outfan of signal acquisition circuit, the input of a cable capacity testing circuit and charging cable
Being connected, controller is connected with the outfan of cable capacity testing circuit, the PWM letter of cable capacity testing circuit
Number CP signal receiving end forwarding end to produce the outfan of circuit and charging gun with PWM respectively is connected；Described 12V
Voltage generation circuit includes a 12V voltage generation circuit control chip, 12V voltage generation circuit control chip
Being connected between VIN pin with EN pin and have resistance R7, VIN pin is connected, at VIN with the electric capacity C31 of ground connection
It is connected between pin with SW pin and has inductance L5, the connection end of VIN pin, resistance R7 and VIN pin,
The connection end connecting end and inductance L5 and VIN pin of electric capacity C31 and VIN pin is all connected with 5V power supply；
The SW pin of 12V voltage generation circuit control chip and double diode D4 in parallel and the one of double diode D5
Parallel connected end is connected, by No. 3 pin serial connection one electric capacity C25 of double diode D4 on double diode D4 branch road,
By No. 3 pin serial connection one electric capacity C30 of double diode D5 on the branch road of double diode D5, after parallel connection
The one parallel end connection ground of resistance R5, electric capacity C27 and electric capacity C28, No. 1 of the other end and double diode D4 is drawn
Foot is connected, and it is the outfan of-12V voltage, and No. 2 pin ground connection of double diode D4 are arranged；Double diode
No. 1 pin ground connection of D5 is arranged, and the one of electric capacity C32 in parallel and resistance R6 that resistance is 432k Ω is in parallel
End is connected with No. 2 pins of double diode D5, and it is the outfan of+12V voltage, the other end and 12V voltage
The FB pin producing circuit control chip is connected, electric capacity C32 after parallel connection and the resistance that resistance is 432k Ω
After R6 and resistance R8 that a resistance is 49.9k Ω series connection, the GND with 12V voltage generation circuit control chip draws
Foot is connected, No. 2 pins of double diode D5 and 12V voltage generation circuit control chip GND pin it
Between connect have parallel connection electric capacity C33 and the GND pin of electric capacity C34,12V voltage generation circuit control chip,
Resistance is that the resistance R8 of 49.9k Ω is connected end and is connected end and electric capacity C33 and GND with GND pin with GND pin
Pin connects the equal ground connection of end.
Described controller is STM32F103VET6_1 control chip, and the CPPWM pin of controller produces with PWM
The input of raw circuit is connected, and the CPAD pin of controller is connected with the outfan of signal acquisition circuit, controls
The CCAD pin of device is connected with the outfan of cable capacity testing circuit.
Described PWM produces circuit and includes that a PWM produces circuit control chip, and PWM produces circuit control chip
VF-pin is connected with the CPPWM pin of controller, and VF+ pin and a resistance R30 are connected with power supply after connecting,
Be in series with between VCC pin and GND pin electric capacity C45, electric capacity C45 and GND pin connection end and
GND pin is connected with-12V the outfan of 12V voltage generation circuit, connects between VCC pin and VO pin
It is connected to resistance R32 parallel with one another and resistance R33, the connection end of VCC pin, resistance R32 and VCC pin,
Resistance R33 all produces with 12V voltage with the connection end connecting end and electric capacity C45 and VCC pin of VCC pin
+ 12V the outfan of raw circuit is connected, and connecting on VO pin has NPN audion Q3 and PNP parallel with one another
The colelctor electrode of audion Q5, NPN audion Q3 is connected with+12V the outfan of 12V voltage generation circuit,
The colelctor electrode of PNP triode Q5 is connected with-12V the outfan of 12V voltage generation circuit, NPN audion Q3
Emitter stage be connected with the emitter stage of PNP triode Q5 after connect another of a resistance R35, resistance R35
Hold the outfan producing circuit for PWM.
Described cable capacity testing circuit includes a resistance R45, and one end of resistance R45 is in series with resistance R46,
Another termination 5V voltage of resistance R45, connects one or two binding post, two wiring between R45 and R46
No. 1 binding post of post is that pwm signal forwards end, No. 1 binding post to be produced the output of circuit by wire and PWM
CP signal receiving end on end and charging gun is connected, and No. 2 binding posts of two binding posts pass through wire and control
The CCAD pin of device and charge cable are connected.
Simulation is guided including the charge cable analog module being connected with ground wire by holding wire and Control of Electric Vehicles
Module, the signal input connector of charge cable analog module and charging pile control to guide and plug detection logic electricity
The pwm signal on road forwards end to be connected, and described charge cable analog module is for simulating the charging wire of different size
Cable, Control of Electric Vehicles guides analog module and is used for simulating Control of Electric Vehicles guiding module difference responsive state,
By the test signal that receives of Control of Electric Vehicles guiding module, judge charging pile control guidance circuit and
Plug detection logic circuit is the most normal.
Described charge cable analog module includes a PCB binding post of one or three joints and the of one or two joints
Two PCB binding posts, the signal that No. 1 joint is charge cable analog module of a PCB binding post is defeated
Enter joint, between No. 1 joint and No. 1 joint of the 2nd PCB binding post of a PCB binding post
Connect a holding wire, No. 2 joints of a PCB binding post and No. 2 joints of the 2nd PCB binding post
Between connect a ground wire, between holding wire and ground wire, be provided with the normally opened switch 1 of a connection holding wire and ground wire,
One end of one normally opened switch 2 is connected with holding wire, and the other end is connected with power supply, resistance R1, R2, R3 and
One end of R4 is connected in parallel on ground wire, and the other end of resistance R1 and one end of the first short circuit cap are connected, resistance R2
The other end and one end of the second short circuit cap be connected, the other end of resistance R3 and one end of the 3rd short circuit cap are connected,
The other end of resistance R4 and one end of the 4th short circuit cap are connected, the first short circuit cap, the second short circuit cap, the 3rd short
The other end of road cap and the 4th short circuit cap is all connected with No. 3 joints of a PCB binding post, at ground wire and
It is in series with the 5th short circuit cap between No. 3 joints of the oneth PCB binding post.
Described Control of Electric Vehicles guides analog module and includes the 3rd PCB binding post of one or two joints, and the 3rd
No. 1 joint of PCB binding post is connected by No. 1 joint of holding wire and the 2nd PCB binding post, and the 3rd
No. 2 joints of PCB binding post are connected by No. 2 joints of ground wire and the 2nd PCB binding post, and the 3rd
One end of No. 2 joints of PCB binding post and a normally closed switch 4 is connected, and the other end of switch 4 connects one
The positive pole of diode is connected, and the negative pole of diode and a test lead are connected, between diode and test lead also
It is associated with resistance R11, resistance R12, resistance R12 and a potentiometer, the other end of potentiometer and a single-pole double throw
The b binding post of the not moved end of switch 6 is connected, a binding post and the 3rd of the not moved end of single-pole double-throw switch (SPDT) 6
No. 2 joints of PCB binding post are connected, and the other end of resistance R11 is connected with the moved end of single-pole double-throw switch (SPDT) 6,
No. 2 binding posts of the other end of resistance R12 and the not moved end of a single-pole double-throw switch (SPDT) 5 are connected, resistance R13
The other end and a single-pole double-throw switch (SPDT) 5 not moved end No. 1 binding post be connected, single-pole double-throw switch (SPDT) 5
Moved end is connected with the moved end of single-pole double-throw switch (SPDT) 6, between single-pole double-throw switch (SPDT) 5 and single-pole double-throw switch (SPDT) 6
Connect a normally opened switch 3.
The present invention uses said structure, arranges control and guide and plug detection logic circuit in charging pile circuit,
Control to guide can cooperate with plug detection logic circuit and detect charge cable with electric automobile the most even
Connect correct, when after correct connection, charging pile is then turned on charging, it is to avoid charging pile be not just connected with cable
Just it is charged in the case of Que causing charging accident, eliminates potential safety hazard；It addition, control to guide and insert
The charging current notice electric motor car that charging pile can be provided by head detection logic circuit by the form of pwm pulse,
If the charging current that charging pile is provided is excessive, electric automobile does not the most accept charging, it is to avoid electric automobile
Accept excessive electric current the battery of electric automobile is caused damage, it is to avoid the generation of security incident.
Need it is entered before being arranged in charging system it addition, charging pile controls to guide with plug testing circuit
Row detection, is also required to periodically overhaul it during using, to ensure that the safety of circuit is with steady
Qualitative, the present invention uses said structure, utilizes special test device to control charging pile to guide and plug inspection
Slowdown monitoring circuit is tested, and test process is simple, and accuracy is high, it is ensured that charging pile controls to guide to be examined with plug
The safety and stability of slowdown monitoring circuit, the maintenance for circuit provides conveniently.
Accompanying drawing illustrates:
Fig. 1 is that charging pile controls to guide and the theory diagram of plug detection logic circuit.
Fig. 2 is the circuit diagram of 12V voltage generation circuit of the present invention.
Fig. 3 is the circuit diagram of pwm signal generation circuit of the present invention.
Fig. 4 is the circuit diagram of cable capacity testing circuit of the present invention.
Fig. 5 is that Control of Electric Vehicles guides simulation modular structure schematic diagram.
Fig. 6 is charge cable analog module structural representation.
Detailed description of the invention:
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combine its accompanying drawing,
The present invention will be described in detail.
As shown in figures 1 to 6, a kind of charging pile controls to guide and plug detection logic circuit, including a controller,
Controller and a PWM produce circuit and are connected ,-12V the voltage output end of a 12V voltage generation circuit and PWM
-12V the voltage controling end producing circuit is connected ,+12V the voltage output end of 12V voltage generation circuit and PWM
+ 12V the voltage controling end producing circuit is connected, and the input of a signal acquisition circuit produces circuit with PWM
Outfan is connected, and controller is connected with the outfan of signal acquisition circuit, a cable capacity testing circuit defeated
Entering end to be connected with charging cable, controller is connected with the outfan of cable capacity testing circuit, and cable capacity is examined
The pwm signal of slowdown monitoring circuit forwards end to produce the outfan of circuit and the CP signal reception of charging gun respectively with PWM
End is connected.
Described controller is STM32F103VET6_1 control chip, and the CPPWM pin of controller produces with PWM
The input of raw circuit is connected, and the CPAD pin of controller is connected with the outfan of signal acquisition circuit, controls
The CCAD pin of device is connected with the outfan of cable capacity testing circuit.
Described 12V voltage generation circuit includes a 12V voltage generation circuit control chip, and 12V voltage produces electricity
It is connected between the VIN pin of road control chip and EN pin and has resistance R7, VIN pin and the electric capacity C31 of ground connection
Being connected, be connected and have inductance L5 between VIN pin with SW pin, VIN pin, resistance R7 with VIN draw
Foot connect end, electric capacity C31 and VIN pin the connection end connecting end and inductance L5 and VIN pin all with
5V power supply is connected；The SW pin of 12V voltage generation circuit control chip and double diode D4 in parallel and double
One parallel connected end of diode D5 is connected, by No. 3 pins of double diode D4 on double diode D4 branch road
Connect an electric capacity C25, by No. 3 pin serial connection one electricity of double diode D5 on the branch road of double diode D5
Holding a parallel end connection ground of C30, resistance R5, electric capacity C27 and the electric capacity C28 after parallel connection, the other end is with double
No. 1 pin of diode D4 is connected, and it is the outfan of-12V voltage, No. 2 pins of double diode D4
Ground connection is arranged；No. 1 pin ground connection of double diode D5 is arranged, and electric capacity C32 in parallel and resistance are 432k
One parallel connected end of the resistance R6 of Ω is connected with No. 2 pins of double diode D5, and it is the output of+12V voltage
End, the other end is connected with the FB pin of 12V voltage generation circuit control chip, the electric capacity C32 after parallel connection with
Resistance be 432k Ω resistance R6 and resistance R8 that a resistance is 49.9k Ω series connection after produce with 12V voltage
The GND pin of circuit control chip is connected, at No. 2 pins and the 12V voltage generation circuit of double diode D5
Electric capacity C33 and electric capacity C34, the 12V voltage generation circuit having parallel connection is connected between the GND pin of control chip
The GND pin of control chip, resistance are that the resistance R8 of 49.9k Ω is connected end and GND pin with GND pin
Connect end and electric capacity C33 is connected the equal ground connection of end with GND pin.
In 12V voltage produces electricity, 12V voltage generation circuit chip is SC4503TSKTRT control chip,
Operationally, the input VIN of 12V voltage generation circuit control chip is 5V to 12V voltage generation circuit, its
Outfan SW voltage be 5V, FB terminal voltage be 1.25V, therefore, resistance is the electricity on the R8 of 49.9K Ω
Pressure is 1.25V, is 0.025A by the electric current of resistance R8, then the resistance being in series with resistance R8 is 432k
One end that No. 2 pins of the resistance R6 and double diode D5 of Ω are connected is 0.025A × (432 Ω+49.9
Ω)=12.07V, therefore the connection terminal voltage of No. 2 pins of resistance R6 and double diode D5 is+12V, its
+ 12V voltage output end for 12V voltage generation circuit.No. 1 leads ends voltage of double diode D4 is double two
The backward voltage of No. 2 leads ends voltages of pole pipe D5, therefore No. 1 leads ends voltage of double diode D4 is
-12V, it is-12V the voltage output end of-12V voltage generation circuit.
Described PWM produces circuit and includes that a PWM produces circuit control chip, and PWM produces circuit control chip
VF-pin is connected with the CPPWM pin of controller, and VF+ pin and a resistance R30 are connected with power supply after connecting,
Be in series with between VCC pin and GND pin electric capacity C45, electric capacity C45 and GND pin connection end and
GND pin is connected with-12V the outfan of 12V voltage generation circuit, connects between VCC pin and VO pin
It is connected to resistance R32 parallel with one another and resistance R33, the connection end of VCC pin, resistance R32 and VCC pin,
Resistance R33 all produces with 12V voltage with the connection end connecting end and electric capacity C45 and VCC pin of VCC pin
+ 12V the outfan of raw circuit is connected, and connecting on VO pin has NPN audion Q3 and PNP parallel with one another
The colelctor electrode of audion Q5, NPN audion Q3 is connected with+12V the outfan of 12V voltage generation circuit, PNP
The colelctor electrode of audion Q5 is connected with-12V the outfan of 12V voltage generation circuit, NPN audion Q3's
Emitter stage is connected after being connected with the emitter stage of PNP triode Q5 a resistance R35, the other end of resistance R35
For outfan.
In PWM produces circuit, it is HCPL2503 control chip that PWM produces circuit control chip, with PWM
The CPPWM pin producing the controller that circuit control chip is connected produces low and high level, when high level inputs,
PWM produces the VO pin of circuit control chip and should be high level mutually, and VO pin is to coupled two the most also
The audion of connection sends high level, and the base stage of NPN audion Q3 turns on after receiving high level, PNP tri-
The base stage of pole pipe Q5 is ended after receiving high level, the resistance R35 that now emitter stage with two audions is connected
Voltage be+12V voltage, when low level inputs, PWM produce circuit control chip VO pin should be mutually
Low level, VO pin sends low level, NPN audion Q3 to two coupled audions parallel with one another
Base stage end after receiving low level, the base stage of PNP triode Q5 turns on after receiving high level,
The voltage of the resistance R35 that now emitter stage with two audions is connected is-12V voltage.
Described cable capacity testing circuit includes a resistance R45, and one end of resistance R45 is in series with resistance R46,
Another termination 5V voltage of resistance R45, connects one or two binding post, two wiring between R45 and R46
No. 1 binding post of post is that pwm signal forwards end, No. 1 binding post to be produced the CP of circuit by wire and PWM
CP signal receiving end on signal output part and charging gun is connected, and No. 2 binding posts of two binding posts are by leading
Line is connected with CCAD pin and the charge cable of controller.
A kind of charging pile controls to guide and the test device of plug detection logic circuit, including by holding wire and
Charge cable analog module and Control of Electric Vehicles that ground wire is connected guide analog module, charge cable simulation mould
The signal input part of block controls the pwm signal of guiding and plug detection logic circuit and forwards end to be connected with charging pile,
Described charge cable analog module is for simulating the charge cable of different size, and Control of Electric Vehicles guides simulation
Module is used for simulating Control of Electric Vehicles guiding module difference responsive state, is led by test Control of Electric Vehicles
Draw the signal that module receives, judge that charging pile controls guidance circuit and plug is the most just detecting logic circuit
Often.
Described charge cable analog module includes a PCB binding post of one or three joints and the of one or two joints
Two PCB binding posts, the signal that No. 1 joint is charge cable analog module of a PCB binding post is defeated
Enter joint, between No. 1 joint and No. 1 joint of the 2nd PCB binding post of a PCB binding post
Connect a holding wire, No. 2 joints of a PCB binding post and No. 2 joints of the 2nd PCB binding post
Between connect a ground wire, between holding wire and ground wire, be provided with the normally opened switch 1 of a connection holding wire and ground wire,
One end of one normally opened switch 2 is connected with holding wire, and the other end is connected with power supply, resistance R1, R2, R3 and
One end of R4 is connected in parallel on ground wire, and the other end of resistance R1 and one end of the first short circuit cap are connected, resistance R2
The other end and one end of the second short circuit cap be connected, the other end of resistance R3 and one end of the 3rd short circuit cap are connected,
The other end of resistance R4 and one end of the 4th short circuit cap are connected, the first short circuit cap, the second short circuit cap, the 3rd short
The other end of road cap and the 4th short circuit cap is all connected with No. 3 joints of a PCB binding post, at ground wire and
It is in series with the 5th short circuit cap between No. 3 joints of the oneth PCB binding post.
Described Control of Electric Vehicles guides analog module and includes the 3rd PCB binding post of one or two joints, and the 3rd
No. 1 joint of PCB binding post is connected by No. 1 joint of holding wire and the 2nd PCB binding post, and the 3rd
No. 2 joints of PCB binding post are connected by No. 2 joints of ground wire and the 2nd PCB binding post, and the 3rd
One end of No. 2 joints of PCB binding post and a normally closed switch 4 is connected, and the other end of switch 4 connects one
The positive pole of diode is connected, and the negative pole of diode and a test lead are connected, between diode and test lead also
It is associated with resistance R11, resistance R12, resistance R13 and a potentiometer, the other end of potentiometer and a single-pole double throw
The b binding post of the not moved end of switch 6 is connected, a binding post and the 3rd of the not moved end of single-pole double-throw switch (SPDT) 6
No. 2 joints of PCB binding post are connected, and the other end of resistance R11 is connected with the moved end of single-pole double-throw switch (SPDT) 6,
No. 2 binding posts of the other end of resistance R12 and the not moved end of a single-pole double-throw switch (SPDT) 5 are connected, resistance R13
The other end and a single-pole double-throw switch (SPDT) 5 not moved end No. 1 binding post be connected, single-pole double-throw switch (SPDT) 5
Moved end is connected with the moved end of single-pole double-throw switch (SPDT) 6, between single-pole double-throw switch (SPDT) 5 and single-pole double-throw switch (SPDT) 6
Connect a normally opened switch 3.
Charging pile controls to guide the work process with plug detection logic circuit:
Before the charging gun of charging pile is connected with electric automobile, the CPPWM pin of controller produces electricity to PWM
Road continuously sends out high level, and now PWM produces the CP signal input part of circuit is+12V, defeated with CP signal
Entering the connected signal acquisition circuit of end to send voltage signal to controller, controller receives+12V voltage
Signal, it is judged that current state is not-connected status, after charging gun is connected with electric automobile, if connecting correct,
Then PWM produces the outfan of circuit and No. 1 binding post phase of two binding posts in cable capacity testing circuit
Being connected with electric automobile bonder after Lian, the resistance on electric automobile bonder increases to PWM and produces circuit
In loop, now the voltage of resistance R35 reduces, and the signal acquisition circuit being connected with CP signal input part is by electricity
Pressure signal sends to controller, and controller receives relatively low voltage signal, it is possible to judge current state
Correctly it is connected with electric automobile for charging gun.
Start after electric automobile is powered at charging pile, with 2 of two binding posts in cable capacity testing circuit
The cable resistance that number binding post is connected is linked in cable capacity testing circuit, now the voltage rising of CCAD point,
After controller receives the signal that CCAD point voltage raises, judged the specification of cable by voltage signal, control
After device processed receives CCAD point voltage signal, maximum current charging pile provided according to concrete cable specification
Value produces circuit by CPPWM pin to PWM and sends the continuous low and high level that obtains, and PWM generation circuit is receiving
Continuously after low and high level, CP signal input part produces continuously ± 12V pulse signal, and electric automobile is receiving
After ± 12V pulse signal, it is possible to learn the size of charging current according to the dutycycle of ± 12V pulse signal, as
The electric current that really rated current of electric automobile is provided more than or equal to charging pile, then the vehicle-mounted charge of Rechargeable vehicle
Proceed by charging work, if electric current is relatively big, exceed the rated current of electric automobile, then electric automobile is not
Accept charging.
Charging pile controls to guide the test process with the test device of plug detection logic circuit:
When charging pile being controlled guiding and plug detection logic circuit detects, charge cable is simulated mould
No. 1 joint of the oneth PCB binding post of block is connected with the CP signal output part of cable capacity detection circuit,
No. 3 joints of the oneth PCB binding post are connected with the input of cable capacity detection circuit, signals collecting electricity
The input on road and No. 1 joint of a PCB binding post are connected, and its ground wire grounded setting, by electronic vapour
Car controls to guide the test lead of analog module and is connected with oscillograph.
It is able to observe that charging pile circuit by single-pole double-throw switch (SPDT) 6 being closed into the b binding post of not moved end
Control the dynamic change of the CP signal that guidance circuit is exported such that it is able to complete observing is changing resistance
The situation of change of CP signal during access.First potentiometer is adjusted to maximum value state, and now, PWM produces
The CP signal input part of raw circuit is+12V, and owing to potentiometer resistance is very big, therefore signal acquisition circuit is adopted
Collect to voltage should be+12V, controller judges that electric automobile is the most correctly connected with charging pile, and charging pile will not
Power supply, cable capacity detection circuit provides CP signal by CP signal output part to charge cable analog module,
CP signal is sent to test lead by holding wire, and therefore ripple device should be shown as+12V at this moment.
The resistance of regulator potentiometer, along with the resistance of potentiometer constantly reduces, signal acquisition circuit is collected
Voltage reduce accordingly, when being reduced to 9.8V, Control of Electric Vehicles guiding module can interpolate that out that self is
Through being correctly connected with charging pile, electric automobile is when being reduced to 6.8V, and Control of Electric Vehicles guides analog module
The state that simulation electric automobile load accesses, now, if controller can judge by controlling guidance circuit
Electric automobile is correctly connected with charging pile, and PWM produces the CP signal input part output pwm pulse signal of circuit,
Cable capacity detection circuit provides pwm pulse signal by CP signal output part to charge cable analog module,
CP signal is sent to test lead by holding wire, if oscillograph shows pwm pulse signal, and charging at this moment
Relay drive circuit in stake circuit controls relay Guan Bi, then prove that controlling guidance circuit can correctly sentence
Disconnected charging pile is correctly connected with electric automobile.When normally closed switch 4 is closed, Control of Electric Vehicles
Guiding analog module to disconnect with holding wire, Control of Electric Vehicles guides simulation module simulation and disconnects even with charging pile
Connecing state, now, if oscillograph becomes+12V from pwm pulse signal, and relay drive circuit controls
Relay is opened, then prove charging pile circuit control guidance circuit can correctly judge charging pile with electricity
Electrical automobile disconnects.
When single-pole double-throw switch (SPDT) 6 is closed into a binding post of not moved end, R11 is i.e. linked in circuit,
Now, the voltage that signal acquisition circuit is collected is 9.8V, then is closed by switch 3, simulates electric automobile
Access the state of load, if the control that oscillograph shows pwm pulse signal explanation charging pile circuit at this moment is led
Draw normal circuit operation, No. 2 binding posts of single-pole double-throw switch (SPDT) 5 never moved end are closed into the 1 of not moved end
Number binding post, simulation electric automobile accesses the state of more heavy load, if charging pile response ventilation state, then
Proving that loading condition can be sent to controller by the control guidance circuit of charging pile circuit, controller response is logical
Wind.
By the first short circuit cap connection in charge cable analog module, in resistance R1 access circuit, charge cable
The charge cable of a certain specification of analog module simulation, is connected with No. 3 joints of a PCB binding post
Voltage signal is sent back to controller by the input of cable capacity detection circuit, and controller is by judging voltage signal
Draw charging pile charging current value, produce circuit by PWM and send the pwm pulse signal of certain dutycycle,
Now, if the current value calculated according to the dutycycle of the pwm pulse signal shown by oscillograph with fill
The current value of the charge cable corresponding to resistance R1 accessed in electric wire cable analog module is identical, then prove plug
Detection logic circuit can correctly judge the charge cable of specification corresponding to resistance R1, controls to guide electricity simultaneously
Current value signals correct can must be sent to electric automobile by road, more successively by the second short circuit cap, the 3rd short circuit
Cap, the 4th short circuit cap and the 5th short circuit cap are connected, and can be 0 to resistance R2, resistance R3, resistance R4 resistance
The charge cable of corresponding specification detects, and checks that can controller be made by plug detection logic circuit
Corresponding judgement.
It addition, by the switch 2 being arranged in electric wire cable analog module is closed, analog signal line power line
The situation of short circuit, can test charging pile circuit be learnt by plug detection logic circuit and be controlled relay and break
Open；
By the switch 1 being arranged in electric wire cable analog module is closed, analog signal line and ground wire short circuit
Situation, can test charging pile circuit be learnt by plug detection logic circuit and be controlled relay in time and disconnect.
Present configuration is reasonable in design, arranges control and guide and plug detection logic circuit in charging pile circuit,
Control to guide can cooperate with plug detection logic circuit and detect charge cable with electric automobile the most even
Connect correct, when after correct connection, charging pile is then turned on charging, it is to avoid charging pile be not just connected with cable
Just it is charged in the case of Que causing charging accident, eliminates potential safety hazard；It addition, control to guide and insert
The charging current notice electric motor car that charging pile can be provided by head detection logic circuit by the form of pwm pulse,
If the charging current that charging pile is provided is excessive, electric automobile does not the most accept charging, it is to avoid electric automobile
Accept excessive electric current the battery of electric automobile is caused damage, it is to avoid the generation of security incident.Meanwhile,
Utilize special test device that charging pile is controlled guiding and plug testing circuit is tested, test process letter
Single, accuracy is high, it is ensured that charging pile controls to guide and the safety and stability of plug testing circuit, for
The maintenance of circuit provides conveniently.
Above-mentioned detailed description of the invention cannot function as limiting the scope of the invention, for the art
For technical staff, any alternate modification being made embodiment of the present invention or conversion all fall within the present invention
Protection domain in.
The present invention does not describes part in detail, is the known technology of those skilled in the art of the present technique.
Claims (7)
1. a charging pile controls to guide and plug detection logic circuit, it is characterised in that: include a controller,
Controller and a PWM produce circuit and are connected ,-12V the voltage output end of a 12V voltage generation circuit and PWM
-12V the voltage controling end producing circuit is connected ,+12V the voltage output end of 12V voltage generation circuit and PWM
+ 12V the voltage controling end producing circuit is connected, and the input of a signal acquisition circuit produces circuit with PWM
Outfan is connected, and controller is connected with the outfan of signal acquisition circuit, a cable capacity testing circuit defeated
Entering end to be connected with charging cable, controller is connected with the outfan of cable capacity testing circuit, and cable capacity is examined
The pwm signal of slowdown monitoring circuit forwards end to produce the outfan of circuit and the CP signal reception of charging gun respectively with PWM
End is connected；Described 12V voltage generation circuit includes a 12V voltage generation circuit control chip, and 12V voltage produces
It is connected between VIN pin and the EN pin of raw circuit control chip and has resistance R7, VIN pin and the electricity of ground connection
Hold C31 be connected, is connected between VIN pin with SW pin and has inductance L5, VIN pin, resistance R7 and
The connection connecting end and inductance L5 and VIN pin connecting end, electric capacity C31 and VIN pin of VIN pin
End is all connected with 5V power supply；The SW pin of 12V voltage generation circuit control chip and electric capacity C25 in parallel and
One end of electric capacity C30 is connected, by No. 3 pin serial connection of double diode D4 on double diode D4 branch road
The other end of electric capacity C25, by No. 3 pin serial connection of double diode D5 on the branch road of double diode D5
The other end of electric capacity C30, a parallel end connection ground of resistance R5, electric capacity C27 and the electric capacity C28 after parallel connection,
The other end is connected with No. 1 pin of double diode D4, and it is the outfan of-12V voltage, double diode D4
No. 2 pin ground connection arrange；No. 1 pin ground connection ground connection of double diode D5 is arranged, electric capacity C32 in parallel
Being connected with No. 2 pins of double diode D5 with a parallel connected end of the resistance R6 that resistance is 432k Ω, it is+12V
The outfan of voltage, the other end is connected, after parallel connection with the FB pin of 12V voltage generation circuit control chip
With 12V after electric capacity C32 and resistance R6 that resistance is 432k Ω and resistance R8 series connection that a resistance is 49.9k Ω
The GND pin of voltage generation circuit control chip is connected, at No. 2 pins and the 12V voltage of double diode D5
Produce and between the GND pin of circuit control chip, connect electric capacity C33 and electric capacity C34, the 12V voltage having parallel connection
Produce the GND pin of circuit control chip, resistance be the resistance R8 of 49.9k Ω be connected with GND pin end and
GND pin connects end and electric capacity C33 is connected the equal ground connection of end with GND pin；Described double diode D4 and double two
The model of pole pipe D5 is BAT54S.
Charging pile the most according to claim 1 controls to guide and plug detection logic circuit, and its feature exists
In: described controller is STM32F103VET6_1 control chip, and the CPPWM pin of controller produces with PWM
The input of raw circuit is connected, and the CPAD pin of controller is connected with the outfan of signal acquisition circuit, controls
The CCAD pin of device is connected with the outfan of cable capacity testing circuit.
Charging pile the most according to claim 2 controls to guide and plug detection logic circuit, and its feature exists
In: described PWM produces circuit and includes that a PWM produces circuit control chip, and PWM produces circuit control chip
VF-pin is connected with the CPPWM pin of controller, and VF+ pin and a resistance R30 are connected with power supply after connecting,
Be in series with between VCC pin and GND pin electric capacity C45, electric capacity C45 and GND pin connection end and
GND pin is connected with-12V the outfan of 12V voltage generation circuit, connects between VCC pin and VO pin
It is connected to resistance R32 parallel with one another and resistance R33, the connection end of VCC pin, resistance R32 and VCC pin,
Resistance R33 all produces with 12V voltage with the connection end connecting end and electric capacity C45 and VCC pin of VCC pin
+ 12V the outfan of raw circuit is connected, and connecting on VO pin has the base of NPN audion Q3 parallel with one another
Pole and the base stage of PNP triode Q5, the colelctor electrode of NPN audion Q3 and the+12V of 12V voltage generation circuit
Outfan is connected, and the colelctor electrode of PNP triode Q5 is connected with-12V the outfan of 12V voltage generation circuit,
The emitter stage of NPN audion Q3 is connected after being connected with the emitter stage of PNP triode Q5 a resistance R35, electricity
The other end of resistance R35 is the outfan that PWM produces circuit.
Charging pile the most according to claim 2 controls to guide and plug detection logic circuit, and its feature exists
In: described cable capacity testing circuit includes a resistance R45, and one end of resistance R45 is in series with resistance R46,
Another termination 5V voltage of resistance R45, connects one or two binding post, two wiring between R45 and R46
No. 1 binding post of post is that pwm signal forwards end, No. 1 binding post to be produced the output of circuit by wire and PWM
CP signal receiving end on end and charging gun is connected, and No. 2 binding posts of two binding posts pass through wire and control
The CCAD pin of device and charge cable are connected.
5. a charging pile as claimed in claim 1 controls to guide and the test dress of plug detection logic circuit
Put, it is characterised in that: include charge cable analog module and the electric automobile being connected by holding wire with ground wire
Controlling to guide analog module, the signal input connector of charge cable analog module and charging pile control to guide and insert
The pwm signal of head detection logic circuit forwards end to be connected, and described charge cable analog module is used for simulating difference
The charge cable of specification, Control of Electric Vehicles guides analog module and is used for simulating Control of Electric Vehicles guiding module
Different responsive states, the signal received by test Control of Electric Vehicles guiding module, judge charging pile
Control guidance circuit and plug detection logic circuit is the most normal.
Charging pile the most according to claim 5 controls to guide and the test device of plug detection logic circuit,
It is characterized in that: described charge cable analog module includes a PCB binding post and or two of one or three joints
2nd PCB binding post of joint, No. 1 joint of a PCB binding post is charge cable analog module
Signal input connector, No. 1 joint of a PCB binding post and No. 1 of the 2nd PCB binding post
A holding wire, No. 2 joints of a PCB binding post and the 2 of the 2nd PCB binding post are connected between joint
Connect a ground wire between number joint, between holding wire and ground wire, be provided with the normally opened of a connection holding wire and ground wire
Switch 1, one end of a normally opened switch 2 is connected with holding wire, and the other end is connected with power supply, resistance R1,
One end of R2, R3 and R4 is connected in parallel on ground wire, and the other end of resistance R1 and one end of the first short circuit cap are connected,
The other end of resistance R2 and one end of the second short circuit cap are connected, the other end of resistance R3 and the 3rd short circuit cap
One end is connected, and the other end of resistance R4 and one end of the 4th short circuit cap are connected, the first short circuit cap, the second short circuit
The other end of cap, the 3rd short circuit cap and the 4th short circuit cap is all connected with No. 3 joints of a PCB binding post,
It is in series with the 5th short circuit cap between ground wire and No. 3 joints of a PCB binding post.
Charging pile the most according to claim 5 controls to guide and the test device of plug detection logic circuit,
It is characterized in that: described Control of Electric Vehicles guides analog module and includes the 3rd PCB terminals of one or two joints
Son, No. 1 joint of the 3rd PCB binding post passes through holding wire and No. 1 joint of the 2nd PCB binding post
Being connected, No. 2 joints of the 3rd PCB binding post pass through ground wire and No. 2 joints of the 2nd PCB binding post
Being connected, one end of No. 2 joints of the 3rd PCB binding post and a normally closed switch 4 is connected, switch 4
The other end connects the positive pole of a diode and is connected, and the negative pole of diode and a test lead are connected, resistance R11, electricity
One end of resistance R12, resistance R13 and potentiometer is connected between diode and test lead, the other end of potentiometer
It is connected with the b binding post of the not moved end of a single-pole double-throw switch (SPDT) 6, a of the not moved end of single-pole double-throw switch (SPDT) 6
No. 2 joints of binding post and the 3rd PCB binding post are connected, and the other end of resistance R11 is opened with single-pole double throw
The moved end of pass 6 is connected, the other end of resistance R12 and No. 2 wiring of the not moved end of a single-pole double-throw switch (SPDT) 5
Post is connected, and No. 1 binding post of the other end of resistance R13 and the not moved end of a single-pole double-throw switch (SPDT) 5 is connected,
The moved end of single-pole double-throw switch (SPDT) 5 is connected with the moved end of single-pole double-throw switch (SPDT) 6, at single-pole double-throw switch (SPDT) 5 and list
Series connection one normally opened switch 3 between double-pole double throw switch 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437839.1A CN104184193B (en) | 2014-08-29 | 2014-08-29 | Charging pile control guide and plug detection logic circuit and test device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437839.1A CN104184193B (en) | 2014-08-29 | 2014-08-29 | Charging pile control guide and plug detection logic circuit and test device thereof |
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| CN104184193A CN104184193A (en) | 2014-12-03 |
| CN104184193B true CN104184193B (en) | 2017-01-11 |
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| CN201410437839.1A Expired - Fee Related CN104184193B (en) | 2014-08-29 | 2014-08-29 | Charging pile control guide and plug detection logic circuit and test device thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015209576A1 (en) * | 2015-05-26 | 2016-12-01 | Bayerische Motoren Werke Aktiengesellschaft | Collision protection for cables |
| CN105789997B (en) * | 2016-03-25 | 2019-05-03 | 北京新能源汽车股份有限公司 | High-voltage connector device, electric vehicle power system and electric vehicle |
| CN105738741A (en) * | 2016-04-05 | 2016-07-06 | 常胜 | Alternating current charging pile function testing device |
| CN106042954A (en) * | 2016-05-27 | 2016-10-26 | 安徽明瑞智能科技股份有限公司 | Direct-current charging monitoring system for automobile charging pile |
| CN106300583A (en) * | 2016-10-09 | 2017-01-04 | 深圳巴斯巴科技发展有限公司 | A kind of electric motor car novel AC charging controller |
| CA3054628C (en) * | 2017-03-06 | 2023-10-17 | Japan Tobacco Inc. | Battery unit, flavor inhaler, method for controlling battery unit, and program |
| CN107123905B (en) * | 2017-07-07 | 2023-06-02 | 青岛特来电新能源科技有限公司 | Charging gun and charging equipment |
| CN108437818A (en) * | 2018-02-27 | 2018-08-24 | 北京新能源汽车股份有限公司 | Charging pile control system |
| CN109030985B (en) * | 2018-06-12 | 2021-01-05 | 深圳英飞源技术有限公司 | One-vehicle multi-gun position detection method for direct-current charging pile |
| CN110417084A (en) * | 2019-07-23 | 2019-11-05 | 深兰科技（上海）有限公司 | A kind of robot charging method and device |
| CN113442759B (en) * | 2019-12-27 | 2022-07-12 | 重庆国翰能源发展有限公司 | Charging pile with switchable control guide circuit and charging method |
| CN115107552B (en) * | 2022-06-17 | 2024-10-15 | 广州南方电力集团科技发展有限公司 | Charging connection state detection method and system of charging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102011003436A1 (en) * | 2011-02-01 | 2012-08-02 | Siemens Aktiengesellschaft | Charging station for wired charging of an electric vehicle |
| CN102866700B (en) * | 2012-08-15 | 2015-06-10 | 中国电力科学研究院 | Control guide tester for connecting device of electric vehicle and alternating-current charging pile and implementing method for control guide tester |
| CN202886486U (en) * | 2012-08-15 | 2013-04-17 | 中国电力科学研究院 | Control guide tester for connecting device of AC charging pile of electric automobile |
| CN103872712B (en) * | 2012-12-13 | 2017-06-09 | 西门子公司 | Control guiding device, charging socket, charging equipment of electric automobile and system |
| CN203606447U (en) * | 2013-12-17 | 2014-05-21 | 国家电网公司 | Control guide detection circuit and control guide detection devices of charging pile |
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Address after: 250000 room 1-501-516, R & D center, No. 2350, Pioneer Road, hi tech Zone, Shandong, China Applicant after: SHANDONG PURUN ELECTRIC POWER TECHNOLOGY CO., LTD. Address before: 250000 room 1-501-516, R & D center, No. 2350, Pioneer Road, hi tech Zone, Shandong, China Applicant before: JINAN PURUN POWER TECHNOLOGY CO., LTD. |
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