CN107065972A - A kind of DC charging motor and its temperature control method with charging gun temperature monitoring module - Google Patents
A kind of DC charging motor and its temperature control method with charging gun temperature monitoring module Download PDFInfo
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- CN107065972A CN107065972A CN201710495755.7A CN201710495755A CN107065972A CN 107065972 A CN107065972 A CN 107065972A CN 201710495755 A CN201710495755 A CN 201710495755A CN 107065972 A CN107065972 A CN 107065972A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/66—Data transfer between charging stations and vehicles
- B60L53/665—Methods related to measuring, billing or payment
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of DC charging motor and its temperature control method with charging gun temperature monitoring module, the charger includes master controller and the man-machine interaction display screen being connected with the master controller, swipe the card module, power module, charging gun temperature monitoring module, power model, Insulation monitoring is released module, direct current energy meter, the charging gun temperature monitoring module includes single-chip microcomputer and the debugging download unit being connected with the single-chip microcomputer, acquisition control unit, power conversion unit, CAN1 buses, CAN2 buses, wherein single-chip microcomputer is connected by CAN1 buses with charging gun, it is connected by CAN2 buses with master controller, power conversion unit is connected with power module, acquisition control unit respectively with K1 contactors, K2 contactors and charging gun connection.The charging gun temperature monitoring module can carry out upgrading to the charging gun of existing charging pile, and can realize a kind of temperature control method by above-mentioned technical proposal, can effective monitoring charging gun operating temperature so as to ensureing that user has the use environment of a safe and intelligent.
Description
Technical field
The invention belongs to the charging gun domain of control temperature of charger, more particularly to a kind of band charging gun monitoring temperature mould
The DC charging motor and temperature control method of block.
Background technology
With the continuous improvement of battery of electric vehicle capacity and production technology, the advantage of electric car low-carbon environment-friendly Green Travel is cured
Invention is aobvious, and the yield of electric car is measured increasing the need for having the growth advanced by leaps and bounds, electric automobile battery charger.However, it
Preceding charger charging gun does not have temperature-detecting device, if use causes the quality of charging gun aging or rifle to be asked for a long time
Topic, causes gun body overheat to melt meeting even on fire and bring very big potential safety hazard to personal property.
The off-board conduction-type charger standard of electric automobile that country in 2016 promulgates proposes requirement to temperature control, but specifically
Temperature-controlled parameter and control logic do not refine also.In order to ensure electric car charging interval security and meet new national standard, it is necessary to
Increase function of temperature control and carry out upgrading.Nearly two reach far away the electric automobile battery charger useful life that produces and scrap the time limit,
Change original master control system cost big, change cumbersome, be difficult to realize.
As can be seen here, the above-mentioned charging cabinet for not meeting new national standard is in function and the security used, it is clear that still suffered from
Inconvenience and defect, and be urgently further improved.In order to solve above-mentioned problem, relevant manufactures there's no one who doesn't or isn't painstakingly come
Seek solution, but have no that applicable design is developed completion always for a long time, and common product is without appropriate structure
Above mentioned problem is can solve the problem that, this is clearly the problem of related dealer is suddenly to be solved.
The content of the invention
It is an object of the invention to overcome the charging gun of existing electric automobile DC charging motor without function of temperature control, not intelligence,
Security performance is low, non-compliant shortcoming, and provides a kind of DC charging motor with charging gun temperature monitoring module, and provides
Its temperature control method.
The object of the invention to solve the technical problems is realized using following technical scheme.According to proposed by the present invention
A kind of DC charging motor with charging gun temperature monitoring module, including master controller and the man-machine friendship that is connected with the master controller
Mutual display screen, module of swiping the card, power module, charging gun temperature monitoring module, power model group, Insulation monitoring are released module, straight
Electric energy meter, in addition to the ac input end being connected with power module, accessory power supply, power model group are flowed, the accessory power supply leads to
K2 contactor groups are crossed to be connected with charging gun；Temperature sensor is provided with the charging gun, for gathering the direct current in charging gun
The temperature signal that source is just being born with dc source；The DC output end of the power model group passes sequentially through Insulation monitoring and released mould
Block, direct current energy meter, K1 contactor groups are connected with charging gun.
The charging gun temperature monitoring module includes single-chip microcomputer and the debugging download unit being connected with the single-chip microcomputer, adopted
Collect control unit, power conversion unit, CAN1 buses and CAN2 buses, wherein single-chip microcomputer is connected by CAN1 buses and master controller
Connect, be connected by CAN2 buses with charging gun, the power conversion unit is connected with power module, the acquisition control unit point
It is not connected with K1 contactors group, K2 contactors group and charging gun.
Preferably, the master controller is communicated by UART1 buses with man-machine interaction display screen, master controller passes through
UART2 buses are communicated with module of swiping the card, and master controller is communicated by CAN3 buses with power model group, and master controller passes through CAN4
Bus and Insulation monitoring module of releasing are communicated, and master controller is communicated by RS485 buses with direct current energy meter.
Applied to the above-mentioned DC charging motor with charging gun temperature monitoring module enter trip temperature present invention also offers a kind of
The method of control, this method comprises the following steps：
Step 1：The temperature signal that temperature sensor inside charging gun is obtained is converted into by charging gun temperature monitoring module
Temperature numerical is simultaneously reported to charger master controller.
Step 2：The temperature-controlled parameter that master controller is set according to the Temperature numerical of acquisition with master controller is contrasted.
Step 3：Master controller controls charging according to the control logic set in master controller according to the result after contrast
Machine output current.
Step 4：Show the current operating state information of charging gun of charger for user in man-machine interaction display screen
With reference to.
Preferably, the setting of the temperature-controlled parameter in step 2 includes：" charger limitation power output formula " is power output
=(output current X 64%) X output voltages；Charging gun overtemperature alarm temperature is 100 DEG C；Charging gun excess temperature stops charging temperature
It is 110 DEG C；Man-machine interaction display screen shows that charging gun lowest temperature is 60 DEG C；Man-machine interaction display screen is shown in charging gun temperature
Limit is 120 DEG C；Charging gun excess temperature recovery temperature threshold value is -10 DEG C.
Preferably, the control logic in step 3 is：Charging gun temperature monitoring module monitors the dc source of charging gun in real time
The operating temperature just born with dc source, when the positive temperature of dc source is more than dc source negative temperature, charger is with direct current
The positive temperature in source is used as current charging gun temperature；When the temperature that dc source is born is more than the positive temperature of dc source, charger
Current charging gun temperature is used as using the temperature that dc source is born；When the positive temperature of dc source and the negative temperature of dc source are equal
When, charger is used as current charging gun temperature using the positive temperature of dc source.
The control logic also includes：When the temperature of charging gun is more than or equal to, " man-machine interaction display screen shows charging gun temperature
Spend lower limit " when, man-machine interaction display screen shows the charging gun temperature being being currently used；When charging gun temperature is more than " man-machine friendship
Mutual display screen shows charging gun temperature upper limit " when, man-machine interaction display screen shows that the charging gun temperature being being currently used is " people
Machine interactive display shows charging gun temperature upper limit "；When charging gun temperature is less than, " man-machine interaction display screen shows charging gun temperature
During lower limit ", man-machine interaction display screen does not show the charging gun temperature being being currently used.
The control logic also includes：During to charging electric vehicle, when the temperature of charging gun is more than or equal to " charging
During rifle overtemperature alarm temperature ", charger produces " charging gun temperature fault logout " and lights trouble light, while charger is pressed
According to " charger limitation power output formula " limitation power output；The charging gun temperature reduction within a period of time, accumulative temperature rise reaches
To after " charging gun excess temperature recovery temperature threshold value ", charger cancels power limit, is asked according to cell management system of electric automobile
Power exported, simultaneous faults lamp extinguish.
The control logic also includes：During to charging electric vehicle, " filled when the temperature of charging gun is more than or equal to
Electric rifle excess temperature stops charging temperature " when, charger actively stops charging, and produces " charging gun overheat protector record of charging ".
The control logic also includes：When being started to charge up by man-machine interaction display screen operation, in charging gun selection interface, such as
Fruit shows that charging gun temperature is more than or equal to " charging gun overtemperature alarm temperature ", then forbids user to be grasped by man-machine interaction display screen
Elect the rifle, while selecting normothermic charging gun to be filled with red text prompting user in man-machine interaction display screen
Electricity；If charging gun temperature is less than -40 DEG C, the rifle is prohibitted the use of to charge, charger produces " charging gun temperature fault event
Record " simultaneously lights trouble light, while selecting normothermic charging gun in man-machine interaction display screen with red text prompting user
Charged.
By above-mentioned technical proposal, the present invention has clear advantage and beneficial effect compared with prior art.It is at least
With following advantages：
1st, the DC charging function with charging gun temperature monitoring module of the invention monitors the temperature of charging pipette tips in real time,
Timely current limliting cools when there is excess temperature situation.
2nd, the charging gun temperature monitoring module in DC charging motor of the present invention has internal circuit simple, reliable, collection
Control circuit its microcontroller chip cost low, using modularized design, restructural, it is extendible the advantages of.
3rd, charging gun temperature monitoring module is communicated by CAN mode with internal master control system, flexible,
Often increase a charging gun need monitoring, only need to increase a charging gun temperature monitoring module be articulated to be connected with master controller lead to
In the CAN of letter, you can control charging gun is opened and closes and gather the real time temperature of charging gun in real time.So, according to filling
Charging gun enables different temperature control strategies in different temperatures scope in motor operation course, ensures charger charging process
Safety.
4th,, can be directly by the present invention if it is without charging gun temperature detecting module for existing charger
The charging gun temperature monitoring module of proposition is installed and debugged on existing charger, because its cost is low, Universal joint, expansion
Malleability is strong, it is not necessary to change the master control system of existing charging pile, is especially suitable for the upgrading of charger.
Described above is only the general introduction of technical solution of the present invention, in order to be able to better understand the technological means of the present invention, and
It can be practiced according to the content of specification, and to allow the above and other objects, features and advantages of the present invention can be brighter
It is aobvious understandable, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the overall architecture schematic diagram of the DC charging motor of the present invention.
Fig. 2 is the attachment structure schematic diagram of the charging gun temperature monitoring module of the present invention.
Fig. 3 is the external interface schematic diagram of the charging gun temperature monitoring module of the present invention.
Fig. 4 is DC charging motor master controller of the invention and charging gun temperature monitoring module communication interaction graph of a relation.
Fig. 5 is the charging gun temperature monitoring module process chart of the DC charging motor of the present invention.
The DC charging motor main controller controls charging gun temperature monitoring module that Fig. 6 is the present invention carries out temperature control logic
Flow chart.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to a kind of DC charging motor with charging gun temperature monitoring module proposed by the present invention and temperature
Prosecutor method its embodiment, structure, feature and its effect, are described in detail as after.
As shown in Fig. 1 to 2, a kind of DC charging motor with charging gun temperature monitoring module, including master controller and with
The man-machine interaction display screen of master controller connection, module of swiping the card, power module, charging gun temperature monitoring module, power model
Group, Insulation monitoring are released module, direct current energy meter, in addition to are connected with power module, accessory power supply, power model and it is supplied
The ac input end of electricity.The accessory power supply is connected by K2 contactor groups with charging gun；The charging gun is DC charging rifle,
Two-way temperature sensor is provided with it, is respectively used to gather dc source just (DC+) and dc source in charging gun and bears (DC-)
Temperature signal, be additionally provided with electronic lock in charging gun, charging gun in the case of charging normal can be avoided to come off；The power model group
DC output end pass sequentially through release module, direct current energy meter, K1 contactor groups of Insulation monitoring and be connected with charging gun, make charging
Rifle can export direct current to electric automobile.Specifically, the effect of K1 contactor groups is that control DC charging motor is defeated to electric automobile
Go out direct current, the effect of K2 contactor groups is that control accessory power supply is powered to electric automobile BMS, and K1 contactors group, K2 connect
Tentaculum group is made up of two contactors, because the conveying of direct current includes dc source and just bears two-way with dc source, because
This contactor control positive break-make of dc source, another contactor control dc source bears break-make.Dc source is just general
Identified, be connected for the anode with electric automobile with DC+；Identified, be used for and electric automobile with DC- as dc source negative one
GND connection.
The charging gun temperature monitoring module includes single-chip microcomputer and the debugging download unit being connected with the single-chip microcomputer, collection
Control unit, power conversion unit, CAN1 buses and CAN2 buses, wherein single-chip microcomputer are connected by CAN1 buses and master controller
Connect, be connected by CAN2 buses with charging gun, the power conversion unit is connected with power module, the acquisition control unit point
It is not connected with K1 contactors, K2 contactors and charging gun.The single-chip microcomputer that charging gun temperature monitoring module in the present invention is used
Model STM32F103C8T6 chips；The chip model that charger master controller is used is STM32F103ZET6；Under debugging
Carrier unit institute is STC89C54RD using single-chip microcomputer model, and the unit connects after can carrying out level conversion by outside RS-232 chips
The serial ports of computer is connected to, is exported for programming program and on-line debugging；Acquisition control unit is made up of ULN2003AD chips,
ULN2003AD chips are high withstand voltage high current darlington array, are made up of 7 silicon NPN Darlingtons, and its current gain is high, band is negative
Loading capability is strong, drives the electromagnet in contactor and charging gun electronic lock to control to open and close with it.
Further, ac input end is powered to power module, accessory power supply, power model group, and power module will be exchanged
Voltage conversion is powered into 24V direct currents for master controller.Power module also with the Power convert in charging gun temperature monitoring module
Unit is connected, and the 24V direct currents of input can be converted further into the list of charging gun temperature monitoring module by the power conversion unit
3.3V DC voltages required for piece machine normal work, specifically, above-mentioned power conversion unit includes 7805 voltage adaptation chips,
It is mainly used in the conversion of system power supply, the 7805 voltage adaptation chip is connected to the single-chip microcomputer of charging gun temperature monitoring module, will
The DC voltage that 24V direct current is converted into 3.3V is used for it.
Further, master controller is connected with man-machine interaction display screen by URAT1 buses and communicated, and completion was charged
Man-machine interaction and information display function in journey.Master controller is connected with module of swiping the card by URAT2 buses and communicated, and completes to fill
Swiping the card before electricity starts and charged the settlement function of swiping the card after terminating.
Further, master controller is connected with power model group by CAN3 buses and communicated, and controls power model group
Unlatching and closure, control charging process in modules output current and voltage.The specific power model group is by several
Power model is constituted, and the power of each power model is 15KW, can be converted into the three-phase alternating current that ac input end is provided directly
Stream electricity exports for charging gun, and master controller can control the quantity that power model starts according to the actual requirements, if desired for filling
Motor exports 60KW power, then master controller is by CAN3 bus sending informations to power model group and starts four power moulds
Block is that can be achieved.
Further, master controller is connected and communicated by CAN4 buses and Insulation monitoring module of releasing, insulation inspection
Survey module of releasing is made up of insulation monitoring module and module of releasing, and wherein insulation monitoring module can detect direct current electric wire positive pole and negative
Pole ground insulation resistance, so that complete charging handshake phase carries out real-time guard to charger；Module of releasing and power model group
It is attached, the remaining voltage in charger direct current output loop can releases after Insulation monitoring terminates to terminate with charging process
Fall, concrete measure is to connect bleeder resistance in power model outlet side to be discharged, and the company of bleeder resistance is disconnected after the completion of releasing
Connect.
Further, master controller is attached realization by RS485 buses and direct current energy meter and communicated, and completes charger
The electric energy metrical of direct current output.
Further, the single-chip microcomputer of charging monitoring module is connected by CAN2 buses with charging gun, and in charging, charging
The charging socket of rifle and electric automobile connects and then realizes that single-chip microcomputer is interacted with electric automobile BMS, therefore in automobile charging
In the case of CAN2 buses can realize that charging gun temperature monitoring module communicates with the BMS of electric automobile.Charging gun monitoring temperature mould
The single-chip microcomputer of block is connected with master controller by CAN1 buses and communicated, in practical application, can set multiple on charger
Charging gun realizes multiple gun while exporting electric energy, then needs to set the charging gun temperature monitoring module of respective amount, and will be newly-increased
Charging gun temperature monitoring module is articulated in CAN1 buses and communicated with master controller, then newly-increased charging gun temperature monitoring module
Acquisition control unit, CAN2 buses, power conversion unit access each module of charger and can monitor often in the same way
The real time temperature of individual charging gun.The Content of Communication of charging gun temperature monitoring module includes forwarding electric automobile BMS messages, collection and connect
Tentaculum state, charging gun state of temperature etc., and charging gun temperature monitoring module can also receive and handle master controller transmission
Control the order such as direct current output contactor group K1 and control charging gun electronic lock.Because CAN can mount many nodes, often
A new charging gun temperature monitoring module is mounted, can be achieved with being communicated and being controlled with the BMS of an electric automobile, therefore
The one-to-many charge function of charger is realized, charger service efficiency is substantially increased.
Further, in charging gun temperature monitoring module, its acquisition control unit is connected with K1 contactor groups, realizes control
The break-make of DC current processed；Acquisition control unit is also connected with K2 contactor groups, switching on and off for controllable accessory power supply, auxiliary
Power supply is helped for rectifier and the three-phase alternating current that ac input end is provided direct current can be converted into charger to electric automobile
The electrical automobile BMS that powered during charging is used；Acquisition control unit is also connected with charging gun, can gather the TEMP inside charging gun
Temperature measured by device and unlatching and the closure for controlling charging gun electronic lock, moreover it is possible to obtain electronic lock status feedback signal, each
Status feedback signal, charging gun voltage signal in place of individual contactor etc..As shown in figure 1, charging gun temperature monitoring module is common
There are both threads to be connected with charging gun, wherein single line represents the single-chip microcomputer of charging gun temperature monitoring module by CAN2 buses with filling
Electric rifle connection, another represents that acquisition control unit is connected with charging gun.
Based on same inventive concept, above-mentioned band charging gun temperature monitoring module is applied to the embodiments of the invention provide one kind
DC charging motor carry out temperature controlled method, this method comprises the following steps：
Step 1：The temperature signal that temperature sensor inside charging gun is obtained is converted into by charging gun temperature monitoring module
Temperature numerical is simultaneously reported to charger master controller.
Step 2：The temperature-controlled parameter that master controller is set according to the Temperature numerical of acquisition with master controller is contrasted.
Step 3：Result after contrast is controlled charging by master controller further according to the control logic set in master controller
The size of machine output current.
Step 4：Show the current operating state information of charging gun of charger for user in man-machine interaction display screen
With reference to.The particular content of this step includes showing the Temperature numerical in step 1 in man-machine interaction display screen；By step
It is shown in 2 with the result after the temperature-controlled parameter contrast of setting in man-machine interaction display screen；Step 3 is contrasted to the result come again
Shown according to the status information of control logic output current in man-machine interaction display screen.
Further, the temperature-controlled parameter described in step 2 is specifically set as：" charger limitation power output formula " is output
Power=(output current X 64%) X output voltages；Charging gun overtemperature alarm temperature is 100 DEG C；Charging gun excess temperature stops charging
Temperature is 110 DEG C；Man-machine interaction display screen shows that charging gun lowest temperature is 60 DEG C；Man-machine interaction display screen shows charging gun temperature
It is 120 DEG C to spend the upper limit；Charging gun excess temperature recovery temperature threshold value is -10 DEG C.Specifically, " man-machine interaction display screen shows charging gun
Lowest temperature is 60 DEG C " concrete meaning be：Only when the rifle temperature of charging gun reaches more than 60 DEG C, in man-machine interaction display screen
Its Temperature numerical can be just shown, starts the temperature of vigilant charging gun once to remind operating personnel to need, prevents that rifle temperature is too high,
Cause adverse consequences；If rifle temperature is less than 60 DEG C, man-machine interaction display screen does not show charging gun temperature, because being said less than 60 DEG C
The temperature of bright charging gun is not up to the use environment for needing vigilant degree, i.e. charging gun to be in safety." charging gun excess temperature is extensive
Multiple temperature threshold is -10 DEG C " " -10 DEG C " therein do not imply that subzero 10 DEG C, this parameter setting concrete meaning is：Work as charging gun
When excess temperature reaches 100 DEG C, charging gun can carry out limitation charging gun power output according to " charger limits power output formula ", when
During 10 DEG C of accumulative temperature drop, that is, dropping to 90 DEG C is, charger can normally export electricity according to the request of BMS under normal circumstances
Stream.
Further, the control logic in step 3 is：The charging gun temperature monitoring module monitors the straight of charging gun in real time
The current operating temperature that power supply just (i.e. DC+) and dc source bear (i.e. DC-) is flowed, when the positive temperature of the dc source of charging gun is more than
During dc source negative temperature, charger is used as current charging gun temperature using the positive temperature of dc source；The temperature born when dc source
During positive more than dc source temperature, charger is used as current charging gun temperature using dc source negative temperature；When dc source just
Temperature and the equal negative temperature of dc source when, temperature of the charger using the positive temperature of dc source as current charging gun.
Further, control logic also includes：When the temperature of charging gun is more than or equal to, " man-machine interaction display screen, which is shown, fills
During electric rifle lowest temperature ", man-machine interaction display screen shows the charging gun temperature being being currently used；When charging gun temperature is more than
When " man-machine interaction display screen shows charging gun temperature upper limit ", man-machine interaction display screen shows the charging gun temperature being being currently used
Spend for " man-machine interaction display screen shows charging gun temperature upper limit "；When charging gun temperature is less than, " man-machine interaction display screen, which is shown, fills
During electric rifle lowest temperature ", man-machine interaction display screen does not show the charging gun temperature being being currently used.
Further, control logic also includes：During to charging electric vehicle, when the temperature of charging gun is more than or waits
When " charging gun overtemperature alarm temperature ", charger produces " charging gun temperature fault logout " and lights trouble light, simultaneously
Charger is according to " charger limits power output formula " limitation power output；The charging gun temperature reduction within a period of time, tires out
Meter temperature rise reaches after " charging gun excess temperature recovery temperature threshold value " that charger cancels power limit, is managed according to batteries of electric automobile
The power of system request is exported, and simultaneous faults lamp extinguishes.
Further, control logic also includes：During to charging electric vehicle, be more than when the temperature of charging gun or
During equal to " charging gun excess temperature stopping charging temperature ", charger actively stops charging, and produces " charging gun overheat protector charging note
Record ".
Further, control logic also includes：When being started to charge up by man-machine interaction display screen operation, in charging gun selection
Interface, if display charging gun temperature is more than or equal to " charging gun overtemperature alarm temperature ", forbids user to pass through man-machine interaction
Display screen operation selects the rifle, while selecting normothermic charging gun in man-machine interaction display screen with red text prompting user
Charged；If charging gun temperature is less than -40 DEG C, the rifle is prohibitted the use of to charge, charger produces " charging gun temperature event
Barrier logout " simultaneously lights trouble light, while normothermic with red text prompting user's selection in man-machine interaction display screen
Charging gun is charged.
As shown in figure 3, being charging gun temperature monitoring module external interface figure.Wherein XS5 is power supply interface, and VIN is+24V
Supply input, IGND is input ground.XS6 is charging gun electronics lock interface, DJ+ and the DJ- controls unlatching of electronic lock, closure, defeated
Go out signal, LOCK is the input signal of detection electronics lock status.XS2 AD0 is charging gun magnitude of voltage input signal in place, ADT1
It is charging gun temperature detection input signal with ADT2, two-way temperature sensor meets ADT1 and ADT2 respectively；Charging gun monitoring temperature
Module is calculated by AD conversion and obtains charging gun magnitude of voltage and temperature value；CAN2H and CAN2L are communicated with electric automobile BMS
CAN interface.XS7 is the control output interface of accessory power supply, for controlling K2 contactor groups.XS1 IN1, IN2 is DC+/DC-
Feedback signal input pin, CAN1H and CAN2L are charging gun monitoring temperature mould and master control system CAN communication interface.XS4's
DC+ pins are the output control interface of the K1 contactor groups of control DC circuit break-make.
As shown in figure 4, being DC charging motor master controller and charging gun temperature monitoring module interactive relation figure.DC charging
Initialized on owner's controller after electricity and open charging gun temperature monitoring module, the initialization of charging gun monitoring temperature mould is begun to respond to
Master controller commands.By CAN communication during main operation controller, interacted in real time with charging gun monitoring temperature mould.Charging gun
The order that monitoring temperature mould is sent according to master controller performs response action.When master controller terminates operation, send and close mould
Block command terminates the operation of charging gun monitoring temperature mould.
As shown in figure 5, being the charging gun temperature monitoring module process chart of DC charging motor of the present invention.Charging gun temperature
Initialized on monitoring module after electricity, the temperature of charging gun is then detected in real time, in real time the rifle position magnitude of voltage of detection charging gun.Fill
The normal value of rifle position voltage that electric rifle temperature monitoring module gets charging gun is 4V, 6V and 12V.Charging gun monitoring temperature mould is real
When response master controller the order for obtaining charging gun temperature and rifle position voltage.Charging gun monitoring temperature mould is according to charging owner
The control signal control closure or openness charging gun electronic lock that controller is sent, and the feedback signal of electronic lock is detected in real time.Fill
The signal that electric rifle monitoring temperature mould is sent according to charger master controller is controlled directly in the way of closing or disconnecting K1 contactor groups
Electricity DC+/DC- break-make is flowed, and detects K1 contactor group feedback signals in real time.
As shown in fig. 6, being the flow chart of DC charging motor main controller controls charging gun Temperature Treatment, it is directly described
The temperature control logic of DC charging motor.Master controller initializes modules after electricity on DC charging motor, including initialization is absolutely
Edge detects release module, direct current energy meter, power model group etc., makes charger in running order, and response charging in real time is needed
Ask.10ms timed task is run as shown in the right hand flow in Fig. 6, in master controller, it is in real time from direct current
The charging gun temperature monitoring module of charger obtains the temperature of charging gun, if charging gun temperature is in effective range, just at once more
It is new and store.As shown in the main flow chart in the left side in Fig. 6, master controller is according to the Temperature numerical that storage is updated in effective range
Judge whether charging gun temperature reaches that man-machine interaction display screen shows the lower limit of charging gun temperature, i.e., 60 DEG C, just exist if reached
Current value is shown in man-machine interaction display screen, so as to monitoring in real time and the temperature of prompting charging personnel's charging gun, if up to not
Prepare to open charging on to the operation interface for then jumping directly to man-machine interaction display screen.When charging personnel are in human-computer interaction interface point
Charge button is hit, whether system can judge to be currently inserted into the charging gun temperature of electric automobile in usable scope, if the charging
Rifle excess temperature, excess temperature exceedes 100 DEG C of charging gun overtemperature alarm temperature, then points out this charging gun rifle temperature is too high to charge, manually
Other normothermic charging gun chargings are changed in selection.If rifle temperature is normal, the rifle is started to charge up.It is main in charging process
The charging gun temperature that controller real-time judge is charging whether excess temperature, if temperature is normal, just according to electric automobile BMS requests
Voltage x current is charged.Otherwise, if charging gun temperature reaches alarm threshold value (namely " charging gun overtemperature alarm temperature ")
But control threshold value (namely " charging gun excess temperature stops charging temperature ") is not reaching to, charger is just according to " charger limitation is defeated
Go out horse-power formula " limit power charging is carried out to electric automobile.It is warm through after a period of time in the case where limiting power output
Degree can be reduced slowly, once charging gun temperature returns to normal temperature, i.e. charging gun excess temperature recovery temperature threshold value has reached -10
DEG C, charger is charged normal according to the electric automobile BMS electric currents asked to electric automobile.If charging gun temperature reaches control threshold
Value (namely " charging gun excess temperature stops charging temperature "), just stops charging immediately.
The above described is only a preferred embodiment of the present invention, any those skilled in the art are not departing from
In the range of technical solution of the present invention, the technical spirit according to the present invention is to any simple modification made for any of the above embodiments, equivalent
Change and modification, in the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of DC charging motor with charging gun temperature monitoring module, it is characterised in that：Including master controller and with the master
Controller connection man-machine interaction display screen, module of swiping the card, power module, charging gun temperature monitoring module, power model group, absolutely
Edge detection is released module, direct current energy meter, in addition to power module, accessory power supply, power model group are connected exchanges input
End,
The accessory power supply is connected by K2 contactor groups with charging gun；
Temperature sensor is provided with the charging gun, for gathering the temperature that the dc source in charging gun is just being born with dc source
Signal；
The output end of the power model group passes sequentially through Insulation monitoring and releases module, direct current energy meter, K1 contactor groups with filling
Electric rifle connection；
The charging gun temperature monitoring module includes single-chip microcomputer and the debugging download unit being connected with the single-chip microcomputer, collection control
Unit processed, power conversion unit, CAN1 buses and CAN2 buses, wherein single-chip microcomputer be connected by CAN1 buses with master controller,
It is connected by CAN2 buses with charging gun, the power conversion unit is connected with power module, the acquisition control unit difference
It is connected with K1 contactors group, K2 contactors group and charging gun.
2. the DC charging motor according to claim 1 with charging gun temperature monitoring module, the master controller passes through
UART1 buses are communicated with man-machine interaction display screen, and master controller is communicated by UART2 buses with module of swiping the card, and master controller leads to
Cross CAN3 buses to communicate with power model group, master controller is communicated by CAN4 buses and Insulation monitoring module of releasing, main control
Device is communicated by RS485 buses with direct current energy meter.
3. a kind of temperature control method of the DC charging motor with charging gun temperature monitoring module as claimed in claim 1, its feature exists
Comprise the following steps in the control method：
Step 1：The temperature signal that temperature sensor inside charging gun is obtained is converted into temperature by charging gun temperature monitoring module
The master controller of numerical value and real-time report to charger；
Step 2：The temperature-controlled parameter that master controller is set according to the Temperature numerical of acquisition with master controller is contrasted；
Step 3：Result after contrast is controlled charger to export by master controller according to the control logic set in master controller
The size of electric current；
Step 4：Show the current operating state information of charging gun of charger so that user refers in man-machine interaction display screen.
4. temperature control method according to claim 3, it is characterised in that the setting of the temperature-controlled parameter in step 2 includes：
" charger limitation power output formula " is power output=(output current X 64%) X output voltages；
Charging gun overtemperature alarm temperature is 100 DEG C；
It is 110 DEG C that charging gun excess temperature, which stops charging temperature,；
Man-machine interaction display screen shows that charging gun lowest temperature is 60 DEG C；
Man-machine interaction display screen shows that charging gun temperature upper limit is 120 DEG C；
Charging gun excess temperature recovery temperature threshold value is -10 DEG C.
5. temperature control method according to claim 3, it is characterised in that the control logic in step 3 is：Charging gun temperature is supervised
Control module monitors the operating temperature that the dc source of charging gun is just being born with dc source in real time, when the positive temperature of dc source is more than directly
When flowing power supply negative temperature, charger is used as current charging gun temperature using the positive temperature of dc source；The temperature born when dc source
During positive more than dc source temperature, the temperature that charger is born using dc source is used as current charging gun temperature；Work as dc source
When positive temperature and the equal negative temperature of dc source, charger is used as current charging gun temperature using the positive temperature of dc source.
6. temperature control method according to claim 4, it is characterised in that the control logic also includes：When the temperature of charging gun is big
When " man-machine interaction display screen shows charging gun lowest temperature ", man-machine interaction display screen shows what is be being currently used
Charging gun temperature；When charging gun temperature is more than " man-machine interaction display screen shows charging gun temperature upper limit ", man-machine interaction is shown
The charging gun temperature that screen display is being currently used is " man-machine interaction display screen shows charging gun temperature upper limit "；When charging gun temperature
When degree is less than " man-machine interaction display screen shows charging gun lowest temperature ", man-machine interaction display screen does not show what is be being currently used
Charging gun temperature.
7. temperature control method according to claim 4, it is characterised in that the control logic also includes：, filled to electric automobile
In electric process, when the temperature of charging gun is more than or equal to " charging gun overtemperature alarm temperature ", charger produces " charging gun temperature
Event of failure is recorded " and trouble light is lighted, while charger is according to " charger limits power output formula " limitation power output；
The charging gun temperature reduction within a period of time, accumulative temperature rise reaches after " charging gun excess temperature recovery temperature threshold value " that charger is cancelled
Power limit, the power asked according to cell management system of electric automobile is exported, and simultaneous faults lamp extinguishes.
8. the temperature control method according to claim 4 any claim, it is characterised in that the control logic also includes：Right
During charging electric vehicle, when the temperature of charging gun is more than or equal to " charging gun excess temperature stops charging temperature ", charging
Owner is dynamic to stop charging, and produces " charging gun overheat protector record of charging ".
9. temperature control method according to claim 4, it is characterised in that the control logic also includes：Shown by man-machine interaction
When screen operation is started to charge up, in charging gun selection interface, if display charging gun temperature is more than or equal to " charging gun overtemperature alarm
Temperature ", then forbid user to select the rifle by man-machine interaction display screen operation, while with red text in man-machine interaction display screen
Prompting user selects normothermic charging gun to be charged；If charging gun temperature is less than -40 DEG C, the rifle is prohibitted the use of
Charging, charger produces " charging gun temperature fault logout " and lights trouble light, while with red in man-machine interaction display screen
Color text prompt user selects normothermic charging gun to be charged.
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| CN107825969A (en) * | 2017-09-22 | 2018-03-23 | 许继电源有限公司 | Charging electric vehicle pipette tips control method for electronic lock, device and electrical lock apparatus |
| CN108162783A (en) * | 2017-12-29 | 2018-06-15 | 上海鼎充新能源技术有限公司 | A kind of three-level structure control system of DC charging motor |
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| CN109159689A (en) * | 2018-09-28 | 2019-01-08 | 广州万城万充新能源科技有限公司 | A kind of DC charging terminal of new intelligent |
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| CN110103752A (en) * | 2018-01-04 | 2019-08-09 | 厦门新页科技有限公司 | A kind of wire and wireless integrated pile and its charge control method |
| CN108365656A (en) * | 2018-03-20 | 2018-08-03 | 孟增丽 | A kind of automobile charging pile security protection system |
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| CN109733243A (en) * | 2019-02-15 | 2019-05-10 | 上海蔚来汽车有限公司 | By the charge control between electric car and charging equipment |
| CN109795363A (en) * | 2019-02-19 | 2019-05-24 | 上海韧思能源科技有限公司 | A kind of electric car charge monitoring device |
| CN109885111A (en) * | 2019-04-24 | 2019-06-14 | 宁波三星智能电气有限公司 | A kind of cooling control method, device and charging pile |
| CN110239378A (en) * | 2019-07-04 | 2019-09-17 | 广东工业大学 | A kind of control method of alternating-current charging pile self-adaptive current output |
| CN113479083A (en) * | 2021-08-18 | 2021-10-08 | 绿能慧充数字技术有限公司 | Protection device and method for safe use of direct current charging gun |
| WO2023092793A1 (en) * | 2021-11-24 | 2023-06-01 | 深圳市永联科技股份有限公司 | Charging pile current control method and related apparatus |
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