CN104029604B - Charging for electric vehicle alternating-current charging pile controls guiding module - Google Patents
Charging for electric vehicle alternating-current charging pile controls guiding module Download PDFInfo
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- CN104029604B CN104029604B CN201410205361.XA CN201410205361A CN104029604B CN 104029604 B CN104029604 B CN 104029604B CN 201410205361 A CN201410205361 A CN 201410205361A CN 104029604 B CN104029604 B CN 104029604B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses a kind of charging for electric vehicle alternating-current charging pile and control guiding module, including positive voltage referrer module, negative voltage referrer module, level switch module, module is followed in output, detection module and charging guide controller, charging guides controller and is connected with described detection module and PWM adjusting module, for starting and finishing control guiding, sampling and process detection signal, control and regulate the dutycycle of the digital pulsewidth modulation pwm signal that PWM adjusting module exports, and indicate and feed back fault message to a backstage main website, described detection module farther includes the 11st resistance, one end of described 11st resistance is connected with described first supply voltage, the other end of described 11st resistance is connected with the CC end of charging plug in charging inlet at power supply.Present invention reduces power supply required precision, the PWM waveform quality of output is higher, and degree of stability is preferable, and can be easier to realize output wave is carried out real-time synchronization detection.
Description
The invention is the Patent No. 201210271432.7 submitted to based on July 31st, 2012, title
For the divisional application of " charging for electric vehicle alternating-current charging pile controls guiding module and guidance method thereof ",
Partial content in its description is to be incorporated herein by reference.
Technical field
The present invention relates to electric automobile discharge and recharge technology, it, the present invention relates to a kind of for electronic vapour in more specific words
The charging of car alternating-current charging pile controls guiding module.
Background technology
Along with day by day popularizing of electric automobile, charging system for electric automobile is the most gradually paid close attention to by more people,
Carry out automobile needing consideration is that during conduction-type charging: before using charging inlet to be charged, need
First to confirm and to detect charging inlet to be the most reliably connected, be charged easily causing under not being fully connected
Personnel's Danger Electric shock risk；In charging process, at power supply, need to be exported the PWM of certain dutycycle by charging inlet
Guide ripple Vehicular charger is controlled, waveform duty cycle can be adjusted in real time according to network load and fill with regulation
Electricity electric current, the most in real time monitoring output waveform and the connection status of charging inlet, once generation abnormal conditions should
Cut off power supply immediately.China has been proposed the state of electric car conduction formula charging connecting device alternating-current charging interface
Family's standard, wherein controls leader to charging and is distinctly claimed.
Charge the recommended parameter guided as shown in Table:
| Parametera | Symbol | Unit | Nominal value | Maximum | Minima |
| Output HIGH voltage | +Vcc | V | 12.00 | 12.60 | 11.40 |
| Output low-voltage | -Vcc | V | -12.00 | -12.60 | -11.40 |
| Output frequency | f | Hz | 1000.00 | 1030.00 | 970.00 |
| Output duty cycle | Dco | -- | -- | + 1% | -1% |
| Signal arranges the timeb | Ts | μs | n.a. | 3 | n.a. |
| Signal elevating time (10%～90%) | |Tr | μs | n.a. | 2 | n.a. |
| Signal fall time (90%～10%) | Tf | μs | n.a. | 2 | n.a. |
Chinese patent CN102487208 discloses a kind of for charging electric vehicle control guiding module, uses logical
Cross " recommending " export structure and drive output PWM ripple.The program is disadvantageous in that: 1, the PWM of output
The edge time of waveform is longer (junction capacity restriction), and when recommending output, positive and negative switching because of input waveform is led
Cause output was easily generated rushes burr；2, the generating positive and negative voltage of output waveform is power supply voltage, and this is to power supply electricity
Precision and the stability requirement of pressure are higher, cause power supply cost to increase.
Summary of the invention
Present invention seek to address that defect present in prior art, it is provided that one at least conforms to national standard design and wants
Ask, simple and practical control guiding module scheme.In this programme, in high precision, the three-terminal voltage-stabilizing of Low Drift Temperature
Device is as a reference source of the voltage reference block of the positive and negative power supply of operational amplifier, it is ensured that its output
The precision of the generating positive and negative voltage amplitude of PWM ripple and temperature stability, so can allow power supply to have bigger essence
Degree range of error, reduces power supply required precision；High pressure Slew Rate, low-power consumption operational amplifier as level
The core devices of conversion, the PWM waveform quality of output is higher, and degree of stability is preferable, conformance with standard design requirement.
In order to realize above-mentioned purpose of design, the design 1 of the present invention: design one is for Electric Vehicle's Alternating
The charging of charging pile controls guiding module, and it is turned by positive voltage referrer module, negative voltage referrer module, level
Die change block, output follow module and detection module composition.These module compatibility electric vehicle charging attachment means
National standard (electric car conduction formula charging connecting device alternating-current charging interface GBT20234.2-2011) and
In State Grid Corporation of China, Southern Power Grid Company relevant enterprise standard to control guiding module design parameter requirement,
Especially meet guiding the frequency of PWM waveform, amplitude, dutycycle precision and the isoparametric requirement of edge time.
Meanwhile, this control guiding module can export in operating temperature range stable, reliable and voltage accuracy and
The PWM waveform of waveform quality all preferable ± 12V, and realization can be easier to and output wave is carried out the most same
Step detection, this module is simple and practical, has higher cost performance.
In order to realize above-mentioned purpose of design, the design 2 of the present invention: design one is for Electric Vehicle's Alternating
The charging of charging pile controls guiding module, and it is turned by positive voltage referrer module, negative voltage referrer module, level
Die change block, output are followed module, detection module and a charging and are guided controller composition, and it is as charging control
The control core of guiding module processed, is used for starting, finishing control guides flow process, samples and processes detection signal,
Control and the output PWM ripple dutycycle of regulation PWM adjusting module, indicate and feed back fault message to backstage master
The equipment such as stand.
The design 1 of the present invention: the charging for electric vehicle alternating-current charging pile controls guiding module, its bag
Include:
Positive voltage referrer module, for being adjusted to preset value by first supply voltage, and as computing
The positive pole supply voltage of amplifier also adjusts it and exports saturated positive voltage；
Negative voltage referrer module, being used for a second source Voltage Cortrol is preset value, and as computing
The negative pole supply voltage of amplifier also adjusts it and exports saturated negative voltage；
Level switch module, it and described positive voltage referrer module, negative voltage referrer module, the first supply voltage
And a PWM adjusting module is connected, for receiving the digital pulse width of described PWM adjusting module output
The reference voltage that modulation (PWM) signal and the divider resistance being connected with described first supply voltage export, and will
Described digital pulsewidth modulation pwm signal and reference voltage compare, subsequently according to institute's result of the comparison
The digital pulsewidth modulation pwm signal of input is converted to amplitude and is equal to the saturated defeated of described operational amplifier
Go out the PWM output signal of voltage；
Module is followed in output, described output follow module and described first supply voltage, second source voltage and
Level switch module is connected, for following the PWM output signal that described level switch module is exported, and
The amplitude making described output PWM output signal keeps constant in being charged connection procedure；And
Detection module, it is followed module with described first supply voltage and output and is connected, for first according to described
The output voltage of the other end of the resistance that the first supply voltage is connected judges the connection shape of charging inlet at power supply
State, judges the connection shape of electric vehicle charge interface further according to the positive voltage amplitude of the output wave at test point I
State and the SBR of charger, judge to charge at described power supply or at electric automobile at described detection module
When interface is for being not connected with, or charging inlet has connected but time charger is not ready to ready, cuts off or forbids
Power supply at power supply.
Further, in a preferred embodiment of the invention, described positive voltage referrer module farther includes: the
One resistance, the second resistance, the first three terminal regulator and the first adjustable resistance, wherein
One end of described first resistance is connected with described first supply voltage, the other end of described first resistance and
One three terminal regulator and being connected with the second resistance；First end of described first three terminal regulator and described first electricity
Resistance and described second resistance are connected, and the second end ground connection of described first three terminal regulator, described one or three end is steady
3rd end of depressor is connected with described second resistance and first adjustable resistance the first end；Described second resistance another
One end is connected with described first adjustable resistance the first end；Second end ground connection of described first adjustable resistance is described
3rd end of the first adjustable resistance and the first end of described first adjustable resistance or the second end short circuit.
Further, in a preferred embodiment of the invention, described negative voltage referrer module farther includes: the
Three resistance, the 4th resistance, the second three terminal regulator and the second adjustable resistance, wherein
One end of described 3rd resistance is connected with described second source voltage, the other end of described 3rd resistance and
Second end of two three terminal regulators and the second end of the second adjustable resistance are connected；
First end ground connection of described second three terminal regulator, the second end and second adjustable resistance the second end are connected, the
Three ends are connected with described second adjustable resistance the first end and the 4th resistance；
Second end of described second adjustable resistance is connected with the second end of described second three terminal regulator, and described second
3rd end of adjustable resistance and the first end of described second adjustable resistance or the second end short circuit；
One end ground connection of described 4th resistance, the other end is connected with described second adjustable resistance the first end.
Further, in a preferred embodiment of the invention, described level switch module farther includes: the 5th
Resistance, the 6th resistance and the first operational amplifier, wherein
One end of described 5th resistance is connected with the first supply voltage, and the other end and the 6th resistance and the first computing are put
Big device the 3rd input is connected；
One end ground connection of described 6th resistance, the other end is connected with operational amplifier the 3rd input；
Second input of described first operational amplifier is connected with the outfan of PWM adjusting module, the 4th input
End is connected with described negative voltage referrer module, and the 7th input is connected with described positive voltage referrer module, described
6th outfan of the first operational amplifier is followed module with described output and is connected.
Further, in a preferred embodiment of the invention, the magnitude of voltage of described first supply voltage is set to+15V,
The magnitude of voltage of second source voltage is set to-15V.
Further, in a preferred embodiment of the invention:
When the input voltage of the second input of described first operational amplifier is less than reference voltage, regulation is described
The 6th outfan output voltage extremely+12V of the knob of the first adjustable resistance extremely described first operational amplifier；Or
Person
When the input voltage of the second input of described first operational amplifier is more than reference voltage, regulation is described
The 6th outfan output voltage extremely-12V of the knob of the second adjustable resistance extremely described first operational amplifier.
Further, in a preferred embodiment of the invention:
When the amplitude of described digital pulsewidth modulation pwm signal is less than described reference voltage, described first fortune
Calculate the high level output signal of the 6th outfan output+12V of amplifier；Or
When the amplitude of described digital PWM ripple is more than described reference voltage, the 6th of described first operational amplifier
The low-level output signal of outfan output-12V.
Further, in a preferred embodiment of the invention, described output is followed module and is farther included: the 7th
Resistance, the 8th resistance and the second operational amplifier, wherein
Second input of described second operational amplifier and the 8th resistance are connected, the 3rd input and the 7th resistance
Being connected, the 6th outfan and the 8th resistance other end are connected；Described 7th resistance one end and described level conversion
Module is connected.
Further, in a preferred embodiment of the invention, described detection module farther includes the 11st resistance,
One end of described 11st resistance is connected with described first supply voltage, the other end of described 11st resistance with
CC line in charging inlet is connected.
Further, in a preferred embodiment of the invention:
If the output voltage of described 11st resistance is+15V, then judge that the charging inlet at described power supply does not connects
Connecing, cut off or forbid the power supply at power supply, meanwhile, described PWM adjusts output module output less than described ginseng
Examine the low level signal of voltage, after level switch module and output follow module, produce the high level letter of+12V
Number output to charging inlet；
If the output voltage of described 11st resistance is 0V, then judge that the charging inlet at described power supply connects,
Meanwhile, described PWM adjusts output module output digital PWM signal, follows through level switch module and output
Produce after module amplitude be ± output of the PWM ripple signal of 12V is to charging inlet；
If the positive voltage amplitude of the output wave at described test point 1 is 9V, then judge the charging inlet of electric automobile
Connect but the charger of electric automobile is not ready to ready, cut off or forbid the power supply at power supply；
If the positive voltage amplitude of the output wave at described test point 1 is 6V, then judge the charging inlet of electric automobile
Connect and the charger of electric automobile has been ready for ready, at power supply, be charged power supply.
The design 2 of the present invention: the charging for electric vehicle alternating-current charging pile controls guiding module, its bag
Include:
Positive voltage referrer module, for being adjusted to preset value by first supply voltage, and as computing
The positive pole supply voltage of amplifier also adjusts it and exports saturated positive voltage；
Negative voltage referrer module, being used for a second source Voltage Cortrol is preset value, and as computing
The negative pole supply voltage of amplifier also adjusts it and exports saturated negative voltage；
Level switch module, it and described positive voltage referrer module, negative voltage referrer module, the first supply voltage
And a PWM adjusting module is connected, for receiving the digital pulse width of described PWM adjusting module output
The reference voltage that modulation (PWM) signal and the divider resistance being connected with described first supply voltage export, and will
Described digital pulsewidth modulation pwm signal and reference voltage compare, subsequently according to institute's result of the comparison
The digital pulsewidth modulation pwm signal of input is converted to amplitude and is equal to the saturated defeated of described operational amplifier
Go out the PWM output signal of voltage；
Module is followed in output, described output follow module and described first supply voltage, second source voltage and
Level switch module is connected, for following the PWM output signal that described level switch module is exported, and
The amplitude making described output PWM output signal keeps constant in being charged connection procedure；
Detection module, it is followed module with described first supply voltage and output and is connected, for first according to described
The output voltage of the other end of the resistance that the first supply voltage is connected judges the connection shape of charging inlet at power supply
State, judges the connection shape of electric vehicle charge interface further according to the positive voltage amplitude of the output wave at test point I
State and the SBR of charger, judge to charge at described power supply or at electric automobile at described detection module
When interface is for being not connected with, or charging inlet has connected but time charger is not ready to ready, cuts off or forbids
Power supply at power supply；And
Charging guides controller, and it is connected with described detection module and PWM adjusting module, is used for starting and terminating
Control to guide, sample and process detection signal, control and regulate the digit pulse width of PWM adjusting module output
The dutycycle of degree modulation (PWM) signal, and indicate and feed back fault message to a backstage main website.
Further, in a preferred embodiment of the invention, it is applied to electric vehicle alternating-current charging according to aforesaid
The charging of stake controls the guidance method of guiding module and comprises the following steps:
1) charging controls guiding module and carries out self-inspection:
Charging guides controller and controls PWM adjusting module output low level signal, through level switch module and following
After output module process, output+12V voltage is to " test point 1 " (CP end), after user inputs charging instruction
Start charging to control to guide；
2) connection status of charging inlet at the detection power supply of charging control guiding module:
Described charging guides controller and controls the digital arteries and veins that output duty cycle is fixing setting value of PWM adjusting module
Rush width modulated PWM ripple signal, more defeated by described detection module sample detecting " test point 1 " (CP end)
The amplitude of the digital pulsewidth modulation PWM ripple signal gone out and dutycycle；
3) connection status at charging control guiding module detection electric vehicle charge interface:
Described charging guides controller and controls PWM adjusting module output low level signal, through level switch module and
After following output module process, output+12V voltage is to " test point 1 " (CP end), if numeral arteries and veins described in self-inspection
Rushing the amplitude of width modulated PWM ripple signal is 12V and dutycycle is consistent with fixing setting value, sentences the most further
Charging connection is passed through and is carried out in disconnected self-inspection, and otherwise, feedback fail self-test fault message to backstage main website and is forbidden
Enter next step；
4) charging inlet connection status at the detection power supply of charging guiding controller:
The voltage of detection " test point 4 " (CC end), it is judged that at power supply, charging inlet has connected, if
It is not connected with, then waits a Preset Time；If connecting, then enter next step；
5) connection status at the charging inlet of electric automobile is detected by charging control guiding module:
The charging current that the described charging guiding controller control corresponding user of PWM adjusting module output or system are arranged
The digital pulsewidth modulation PWM ripple signal of dutycycle, by " the detection of described detection module sample detecting
Point 1 " the positive voltage amplitude of the output digital pulsewidth modulation PWM ripple signal of (CP end), and sentence further
Whether disconnected charging connecting device is fully connected and vehicle-mounted charge control equipment is the most ready.
Further, in a preferred embodiment of the invention, in step 5) in, if " test point 1 " (CP end)
The positive voltage amplitude of digital pulsewidth modulation PWM ripple signal be 12V, then charging connecting device connects the most completely
Connect；
If the positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) is 9V,
Then charging connecting device is fully connected, but vehicle-mounted charge controls equipment and is not ready to ready；
If the positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) is 6V,
Then charging connecting device has been fully connected and vehicle-mounted charge controls equipment and is ready for ready, charging inlet at power supply
It is charged power supply.
Further, in a preferred embodiment of the invention, including step: be periodically detected in charging process
The positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) and " test point
4 " voltage of (CC end), to judge connection status and the charging done state of charging inlet.
Further, in a preferred embodiment of the invention, if detecting, there is disconnecting in described charging inlet,
Then cut off charging and finishing control guides；The digital pulsewidth modulation of " if test point 1 " (CP end)
The positive voltage amplitude of PWM ripple signal is 9V by 6V saltus step, then judge that charging terminates, cut off power supply and terminate
Control to guide.
Further, in a preferred embodiment of the invention, when reaching the termination condition that vehicle is arranged, or behaviour
When personnel have carried out the instruction stopping charging, then stop controlling to guide, and disconnect charging inlet at power supply
Charging；Or
When electric vehicle alternating-current charging pile detects that charging connection has been fully disconnected and has kept continuously 300ms, stop
Control guide and disconnect the charging of charging inlet at power supply.
Accompanying drawing explanation
The preferred embodiment of the present invention will be below with the most detailed description, wherein
Fig. 1 is the present invention for the charging of electric vehicle alternating-current charging pile controls first embodiment former of guiding module
Reason schematic diagram；
Fig. 2 is the present invention for the charging of electric vehicle alternating-current charging pile controls the second embodiment former of guiding module
Reason schematic diagram；
Fig. 3 is the annexation between electric vehicle alternating-current charging pile of the present invention and electric automobile and control principle signal
Figure.
Detailed description of the invention
Embodiment 1:
With reference to Fig. 1, the present invention is for the first enforcement of the charging control guiding module of electric vehicle alternating-current charging pile
Example, it includes:
Positive voltage referrer module 1, it is for being adjusted to preset value, and conduct by first supply voltage
The positive pole supply voltage of operational amplifier U1 also adjusts it and exports saturated positive voltage；
Negative voltage referrer module 2, being used for a second source Voltage Cortrol is preset value, and as fortune
Calculate the negative pole supply voltage of amplifier U1 and adjust its saturated negative voltage of output；
Level switch module 3, it and positive voltage referrer module 1, negative voltage referrer module the 2, first supply voltage
And a PWM adjusting module 7 is connected, for receiving the digit pulse of described PWM adjusting module 7 output
The reference voltage that width modulated pwm signal and the divider resistance being connected with described first supply voltage export,
And described digital pulsewidth modulation pwm signal and reference voltage compared, subsequently according to being compared
The digital pulsewidth modulation pwm signal of input is converted to amplitude satisfying equal to described operational amplifier by result
PWM output signal with output voltage；
Module 4 is followed in output, described output follow module and described first supply voltage, second source voltage with
And level switch module 3 is connected, for following the PWM output letter that described level switch module 3 is exported
Number, and make the amplitude of described output PWM output signal keep constant in being charged connection procedure；And
Detection module 5, it follows module 4 with described first supply voltage and output and is connected, for first according to
The output voltage of the other end of the resistance that described first supply voltage is connected judges the connection of charging inlet at power supply
State, judges the company of electric vehicle charge interface further according to the positive voltage amplitude of the output wave at " test point I " place
Connect the SBR of state and charger, judge at described power supply or at electric automobile at described detection module
When charging inlet is for being not connected with, or charging inlet has connected but time charger is not ready to ready, cut off or
Forbid the power supply at power supply.
Further, in a preferred embodiment of the invention, positive voltage referrer module 1 farther includes: first
Resistance R1, the second resistance R2, the first three terminal regulator D1 and the first adjustable resistance RP1, wherein
One end of described first resistance R1 is connected with described first supply voltage, another of described first resistance R1
Hold with the first three terminal regulator D1 and and the second resistance R2 be connected；The first of described first three terminal regulator D1
End is connected with described first resistance R1 and described second resistance R2, the second of described first three terminal regulator D1
End ground connection, the 3rd end of described first three terminal regulator D1 and described second resistance R2 and the first adjustable resistance
RP1 the first end is connected；The other end of described second resistance R2 and described first adjustable resistance RP1 the first end phase
Even；The second end ground connection of described first adjustable resistance RP1, the 3rd end of described first adjustable resistance RP1 with
First end of described first adjustable resistance RP1 or the second end short circuit.
Further, in a preferred embodiment of the invention, negative voltage referrer module 2 farther includes: the 3rd
Resistance R3, the 4th resistance R4, the second three terminal regulator D2 and the second adjustable resistance RP2, wherein
One end of described 3rd resistance R3 is connected with described second source voltage, another of described 3rd resistance R3
End is connected with second end of the second three terminal regulator D2 and second end of the second adjustable resistance RP2；
The first end ground connection of described second three terminal regulator D2, the second end and second adjustable resistance RP2 the second end
Being connected, the 3rd end is connected with described second adjustable resistance RP2 the first end and the 4th resistance R4；
Second end of described second adjustable resistance RP2 is connected with second end of described second three terminal regulator D2,
3rd end of described second adjustable resistance RP2 is short with first end of described second adjustable resistance RP2 or the second end
Connect；
One end ground connection of described 4th resistance R4, the other end is connected with described second adjustable resistance RP2 the first end.
Further, in a preferred embodiment of the invention, level switch module 3 farther includes: the 5th electricity
Resistance R5, the 6th resistance R6 and the first operational amplifier U1, wherein
One end of described 5th resistance R5 is connected with the first supply voltage, the other end and the 6th resistance R6 and first
Operational amplifier U1 the 3rd input is connected；
One end ground connection of described 6th resistance R6, the other end is connected with operational amplifier U1 the 3rd input；
Described second input of the first operational amplifier U1 is connected with the outfan of PWM adjusting module 7, the
Four-input terminal is connected with described negative voltage referrer module 2, the 7th input and described positive voltage referrer module 1
Being connected, the 6th outfan of described first operational amplifier U1 is followed module 4 with described output and is connected.
Further, in a preferred embodiment of the invention, the magnitude of voltage of described first supply voltage is set to+15V,
The magnitude of voltage of second source voltage is set to-15V.
Further, in a preferred embodiment of the invention:
When the input voltage of second input of described first operational amplifier U1 is less than reference voltage, regulation
The 6th outfan output voltage of the knob of described first adjustable resistance RP1 extremely described first operational amplifier U1
To+12V；Or
When the input voltage of second input of described first operational amplifier U1 is more than reference voltage, regulation
6th outfan output voltage of the knob of described second adjustable resistance RP2 extremely described first operational amplifier is extremely
-12V。
Further, in a preferred embodiment of the invention:
When the amplitude of described digital pulsewidth modulation pwm signal is less than described reference voltage, described first fortune
Calculate the high level output signal of the 6th outfan output+12V of amplifier U1；Or
When the amplitude of described digital pulsewidth modulation pwm signal is more than described reference voltage, described first fortune
Calculate the low-level output signal of the 6th outfan output-12V of amplifier U1.
Further, in a preferred embodiment of the invention, output is followed module 4 and is farther included: the 7th electricity
Resistance R7, the 8th resistance R8 and the second operational amplifier U2, wherein
Second input of described second operational amplifier U2 and the 8th resistance R8 are connected, the 3rd input and the
Seven resistance R7 are connected, and the 6th outfan and the 8th resistance R8 other end are connected；Described 7th resistance R7 one end
It is connected with described level switch module 3.
Further, in a preferred embodiment of the invention, detection module 5 farther includes the 11st resistance R11,
One end of described 11st resistance R11 is connected with described first supply voltage, described 11st resistance R11's
The other end is connected with the CC line in the charging inlet at power supply.
Further, in a preferred embodiment of the invention:
If the output voltage of described 11st resistance R11 is+15V, then judge the charging inlet at described power supply not
Connecting, cut off or forbid the power supply at power supply, meanwhile, described PWM adjusts output module 7 output less than institute
State the low level signal of reference voltage, after level switch module 3 and output follow module 4, produce+12V's
High level signal exports to charging inlet；
If the output voltage of described 11st resistance R11 is 0V, then judge that the charging inlet at described power supply connects
Connecing, meanwhile, described PWM adjusts output module 7 and exports digital PWM signal, through level switch module 3 He
Output produce after following module 4 amplitude be ± output of the PWM ripple signal of 12V is to charging inlet；
If the positive voltage amplitude of the output wave at described test point 1 is 9V, then judge the charging inlet of electric automobile
Connect but the charger of electric automobile is not ready to ready, cut off or forbid the power supply at power supply；
If the positive voltage amplitude of the output wave at described test point 1 is 6V, then judge the charging inlet of electric automobile
Connect and the charger of electric automobile has been ready for ready, at power supply, be charged power supply.
Embodiment 2:
Charging for electric vehicle alternating-current charging pile controls guiding module, and it includes:
Positive voltage referrer module 1, for being adjusted to preset value, and as fortune by first supply voltage
Calculate the positive pole supply voltage of amplifier and adjust its saturated positive voltage of output；
Negative voltage referrer module 2, being used for a second source Voltage Cortrol is preset value, and as fortune
Calculate the negative pole supply voltage of amplifier and adjust its saturated negative voltage of output；
Level switch module 3, it and described positive voltage referrer module, negative voltage referrer module, the first power supply electricity
Pressure and a PWM adjusting module 7 are connected, for receiving the digital arteries and veins of described PWM adjusting module 7 output
Rush width modulated pwm signal and be connected with described first supply voltage divider resistance output reference voltage,
And described digital pulsewidth modulation pwm signal and reference voltage compared, subsequently according to being compared
The digital pulsewidth modulation pwm signal of input is converted to amplitude satisfying equal to described operational amplifier by result
PWM output signal with output voltage；
Module 4 is followed in output, described output follow module and described first supply voltage, second source voltage with
And level switch module is connected, for following the PWM output signal that described level switch module is exported,
And make the amplitude of described output PWM output signal keep constant in being charged connection procedure；
Detection module 5, it follows module 4 with described first supply voltage and output and is connected, for first according to
The output voltage of the other end of the resistance that described first supply voltage is connected judges the connection of charging inlet at power supply
State, judges the connection of electric vehicle charge interface further according to the positive voltage amplitude of the output wave at test point I
State and the SBR of charger, judge to fill at described power supply or at electric automobile at described detection module
When electrical interface is for being not connected with, or charging inlet has connected but time charger is not ready to ready, cuts off or prohibits
The only power supply at power supply；And
Charging guides controller 6, and it is connected with described detection module 5 and PWM adjusting module 7, is used for starting
Guide with finishing control, sample and process detection signal, control and regulate the number of PWM adjusting module 7 output
The dutycycle of word pulse width modulated pwm signal, and indicate and feed back fault message to a backstage main website.
Further referring to Fig. 3, in another preferred embodiment of the present invention, according to aforesaid be applied to electronic
The charging of automobile alternating-current charging pile controls the guidance method of guiding module and comprises the following steps:
1) charging controls guiding module and carries out self-inspection:
Power supply control apparatus 110 includes charging and controls guiding module, and charging guides controller control PWM and adjusts
Module output low level signal, exports+12V voltage extremely through level switch module with following after output module processes
" test point 1 " (CP end), starts charging after user inputs charging instruction and controls to guide.
In a preferred embodiment of the invention, charging guides controller 6 and a gate-controlled switch S1 is adjusted to S0 end,
Now being output as+12V a voltage signal, in this voltage signal process diagram, the loop I of arrows is extremely
" test point 1 " (CP end), is then return to charging and controls guiding module 110, now confirm module 110 certainly
Inspection is normal, can start module 110.
2) connection status of charging inlet at the detection power supply of charging control guiding module:
Described charging guides controller 6 and controls the numeral that output duty cycle is fixing setting value of PWM adjusting module
Pulse width modulation (PWM) ripple signal, then by described detection module sample detecting " test point 1 " (CP end)
The amplitude of the digital pulsewidth modulation PWM ripple signal of output and dutycycle.
In a preferred embodiment of the invention, charging guides controller 6 and gate-controlled switch S1 is adjusted to PWM end,
The width of the digital pulsewidth modulation PWM ripple signal that detection " test point 1 " (CP end) exports the most further
Value and dutycycle.
3) connection status at charging control guiding module detection electric vehicle charge interface 200:
Described charging guides controller and controls PWM adjusting module output low level signal, through level switch module and
After following output module process, output+12V voltage is to " test point 1 " (CP end), if numeral arteries and veins described in self-inspection
Rushing the amplitude of width modulated PWM ripple signal is 12V and dutycycle is consistent with fixing setting value, sentences the most further
Charging connection is passed through and is carried out in disconnected self-inspection, and otherwise, feedback fail self-test fault message to backstage main website and is forbidden
Enter next step；
4) charging guides controller 6 and detects charging inlet connection status at power supply:
The voltage of detection " test point 4 " (CC end), it is judged that at power supply, charging inlet has connected, if
It is not connected with, then waits a Preset Time；With reference to the loop II in Fig. 3, charging controls guiding module 110
Export a detection signal to " test point 4 " again to CC end, to PE end, until earth terminal AGND safety
Ground connection, now the voltage of detection " test point 4 " (CC end) just can know whether that charging inlet loop is the most normal
Connecting, if connecting, then entering next step；
5) connection status at the charging inlet 300 of electric automobile 400 is examined by charging control guiding module
Survey:
With reference to loop III, described charging guides controller and controls the corresponding user of PWM adjusting module output or system
The digital pulsewidth modulation PWM ripple signal of the dutycycle of the charging current arranged, by described detection module
The positive electricity pressure amplitude of the output digital pulsewidth modulation PWM ripple signal of sample detecting " test point 1 " (CP end)
Value, and determine whether whether charging connecting device is fully connected and vehicle-mounted charge controls whether equipment prepares
Ready.
Further, in the another preferred embodiment of the present invention, also include detecting the company in electric automobile 400
Connect the step of state.If the Vehicular charger of the electric automobile in Tu Shi 400 normally connects, i.e. above step
When all normally realizing, then the detection voltage magnitude of " test point 1 " (CP end) should be 6V, the most vehicle-mounted
Charger is connected to electric network power line L and N, switch K1 and K2 Guan Bi, carries out normal vehicle-mounted charge.
In this step, charging is guided controller 6 and is controlled the size of charging current by PWM adjusting module,
Ensure the normal variation of charging current.
Further, in a preferred embodiment of the invention, in step 5) in, if " test point 1 " (CP end)
The positive voltage amplitude of digital pulsewidth modulation PWM ripple signal be 12V, then charging connecting device connects the most completely
Connect；
If the positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) is 9V,
Then charging connecting device is fully connected, but vehicle-mounted charge controls equipment and is not ready to ready；
If the positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) is 6V,
Then charging connecting device has been fully connected and vehicle-mounted charge controls equipment and is ready for ready, charging inlet at power supply
It is charged power supply.
Further, in a preferred embodiment of the invention, including step: be periodically detected in charging process
The positive voltage amplitude of the digital pulsewidth modulation PWM ripple signal of " test point 1 " (CP end) and " test point
4 " voltage of (CC end), to judge connection status and the charging done state of charging inlet.
Further, in a preferred embodiment of the invention, if detecting, there is disconnecting in described charging inlet,
Then cut off charging and finishing control guides；The digital pulsewidth modulation of " if test point 1 " (CP end)
The positive voltage amplitude of PWM ripple signal is 9V by 6V saltus step, then judge that charging terminates, cut off power supply and terminate
Control to guide.
Further, in a preferred embodiment of the invention, when reaching the termination condition that vehicle is arranged, or behaviour
When personnel have carried out the instruction stopping charging, then stop controlling to guide, and disconnect charging inlet at power supply
Charging；Or
When electric vehicle alternating-current charging pile detects that charging connection has been fully disconnected and has kept continuously 300ms, stop
Control guide and disconnect the charging of charging inlet at power supply.
These are only the preferred embodiment of the present invention, it is intended to embody prominent technique effect and the advantage of the present invention,
It it is not the restriction to technical scheme.Those skilled in the art will appreciate that all based on
Amendment, change or the substitute technology feature that the technology of the present invention content is made, all should be covered by institute of the present invention
In the technology category that attached claim is advocated.
Claims (2)
1. the charging for electric vehicle alternating-current charging pile controls guiding module, it is characterised in that it includes:
Positive voltage referrer module, for being adjusted to preset value by first supply voltage, and as computing
The positive pole supply voltage of amplifier also adjusts it and exports saturated positive voltage；
Negative voltage referrer module, being used for a second source Voltage Cortrol is preset value, and as computing
The negative pole supply voltage of amplifier also adjusts it and exports saturated negative voltage；
Level switch module, it and described positive voltage referrer module, negative voltage referrer module, the first supply voltage
And a PWM adjusting module is connected, for receiving the digit pulse width of described PWM adjusting module output
The reference voltage that degree modulation (PWM) signal and the divider resistance being connected with described first supply voltage export,
And described digital pulsewidth modulation pwm signal and reference voltage are compared, subsequently according to being compared
Result the digital pulsewidth modulation pwm signal of input is converted to amplitude equal to described operational amplifier
The PWM output signal of saturated output voltage；
Module is followed in output, described output follow module and described first supply voltage, second source voltage and
Level switch module is connected, for following the PWM output signal that described level switch module is exported,
And make the amplitude of described output PWM output signal keep constant in being charged connection procedure；And
Detection module, it is followed module with described first supply voltage and output and is connected, for first according to described
The output voltage of the other end of the resistance that the first supply voltage is connected judges the connection shape of charging inlet at power supply
State, the positive voltage amplitude further according to the output wave at a test point I judges electric vehicle charge interface
Connection status and the SBR of charger, judge at described power supply or electronic vapour at described detection module
When at car, charging inlet is for being not connected with, or charging inlet has connected but time charger is not ready to ready,
Cut off or forbid the power supply at power supply；
Charging guides controller, and it is connected with described detection module and PWM adjusting module, is used for starting and terminating
Control to guide, sample and process detection signal, control and regulate the digit pulse of PWM adjusting module output
The dutycycle of width modulated pwm signal, and instruction and feedback fault message are to a backstage main website, wherein:
Described detection module farther includes the 11st resistance, one end of described 11st resistance and described first electricity
Source voltage is connected, the CC end of charging plug in charging inlet at the other end of described 11st resistance and power supply
It is connected.
Charging for electric vehicle alternating-current charging pile the most according to claim 1 controls guiding module,
It is characterized in that:
If the output voltage of described 11st resistance is+15V, then judge that the charging inlet at described power supply is not connected with,
Cutting off or forbid the power supply at power supply, meanwhile, the output of described PWM adjusting module is less than described reference voltage
Low level signal, through level switch module and output follow module after produce+12V high level signal defeated
Go out to charging inlet；
If the output voltage of described 11st resistance is 0V, then judge that the charging inlet at described power supply connects,
Meanwhile, described PWM adjust output module output digital PWM signal, through level switch module and output with
With produce after module amplitude be ± output of the PWM ripple signal of 12V is to charging inlet；
If the positive voltage amplitude of the output wave at described test point I is 9V, then judge the charging inlet of electric automobile
Connect but the charger of electric automobile is not ready to ready, cut off or forbid the power supply at power supply；
If the positive voltage amplitude of the output wave at described test point I is 6V, then judge the charging inlet of electric automobile
Connect and the charger of electric automobile has been ready for ready, at power supply, be charged power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410205361.XA CN104029604B (en) | 2012-07-31 | 2012-07-31 | Charging for electric vehicle alternating-current charging pile controls guiding module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271432.7A CN102820686B (en) | 2012-07-31 | 2012-07-31 | Charging control guidance module for alternating-current charge spot of electric vehicle and guidance method of charging control guidance module |
| CN201410205361.XA CN104029604B (en) | 2012-07-31 | 2012-07-31 | Charging for electric vehicle alternating-current charging pile controls guiding module |
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| CN201210271432.7A Division CN102820686B (en) | 2012-07-31 | 2012-07-31 | Charging control guidance module for alternating-current charge spot of electric vehicle and guidance method of charging control guidance module |
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| CN105162198B (en) * | 2015-09-10 | 2017-06-06 | 青岛大学 | A kind of charging electric vehicle control guidance circuit based on analog switch |
| CN105922879B (en) * | 2016-04-28 | 2018-05-08 | 吾度科技有限公司 | A kind of alternating-current charging pile charging guiding device and guidance method |
| CN106274533A (en) * | 2016-08-26 | 2017-01-04 | 南京中港电力股份有限公司 | A kind of low-power consumption CCCP detection circuitry for electric automobile and method of work |
| CN106547243A (en) * | 2017-01-10 | 2017-03-29 | 湖北巴东博宇工贸有限公司 | Alternating-current charging pile controls panel control system |
| CN106740232B (en) * | 2017-01-23 | 2023-09-22 | 华霆（合肥）动力技术有限公司 | Control guide circuit |
| CN106936183B (en) * | 2017-03-09 | 2019-11-15 | 上海蔚来汽车有限公司 | Power-supplying circuit, electric vehicle charging guidance circuit and charging pile |
| CN107147176B (en) * | 2017-06-08 | 2019-10-18 | 北京新能源汽车股份有限公司 | A kind of power-supplying circuit, bidirectional charger and electric car |
| DE102018101704A1 (en) * | 2018-01-25 | 2019-07-25 | Volkswagen Aktiengesellschaft | Power supply device |
| CN108177553B (en) * | 2018-02-28 | 2023-06-16 | 柳州铁道职业技术学院 | New energy automobile charging and discharging device |
| CN109334503B (en) * | 2018-09-29 | 2023-01-17 | 浙江威利坚新能源科技有限公司 | Automobile charging pile control module |
| CN110509789B (en) * | 2019-07-26 | 2021-04-13 | 恒大智慧充电科技有限公司 | Electric automobile and charging equipment |
| CN110920440A (en) * | 2019-12-26 | 2020-03-27 | 深圳威迈斯新能源股份有限公司 | Discharging method and discharging circuit for vehicle-mounted DCDC converter |
| CN113525118B (en) * | 2020-04-21 | 2024-03-01 | 北京新能源汽车股份有限公司 | Electric automobile charging and discharging connector, charging and discharging control method and device |
| CN114274819B (en) * | 2020-09-28 | 2024-04-16 | 比亚迪股份有限公司 | Vehicle, charging device, and computer-readable storage medium |
| CN116648598A (en) * | 2020-12-11 | 2023-08-25 | 马渊马达株式会社 | Control device for rotation detector |
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