CN107054122A - A kind of vehicle-mounted mobile charging device monitoring system - Google Patents
A kind of vehicle-mounted mobile charging device monitoring system Download PDFInfo
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- CN107054122A CN107054122A CN201710116023.2A CN201710116023A CN107054122A CN 107054122 A CN107054122 A CN 107054122A CN 201710116023 A CN201710116023 A CN 201710116023A CN 107054122 A CN107054122 A CN 107054122A
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- interfaces
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- mounted mobile
- chip
- charging device
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- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- 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
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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
- 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
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of vehicle-mounted mobile charging device monitoring system in electric automobile field, including primary processor, and ic for energy metering and battery monitor circuit, the ic for energy metering and the battery monitor circuit are all connected with the primary processor, the primary processor is connected with three tunnel CAN interfaces, wherein first via CAN interface connects automobile charging circuits all in vehicle-mounted mobile charging device, all power-switching circuits in second tunnel CAN interface connection vehicle-mounted mobile charging device, the 3rd tunnel CAN connects all battery monitor circuits.It has the technical effect that：Reduce primary processor and battery monitor circuit, and the potential difference in vehicle-mounted mobile charging device between automobile charging circuit, power-switching circuit, and the influence that communication and monitoring function of the potential difference to whole vehicle-mounted mobile charging device monitoring system are produced, improve whole vehicle-mounted mobile charging device monitoring system anti-interference.
Description
Technical field
The present invention relates to a kind of vehicle-mounted mobile charging device monitoring system in power supply field.
Background technology
Due to the significant advantage of electric automobile, current electric automobile is fast-developing to turn into a kind of very important traffic
Instrument.Each major country all using promoting with Development of EV as important development strategy, is used as the important of energy-saving and emission-reduction
Means.The current various electric automobiles of China have reached several ten million.The existing big Multifunctional electric pond of electric automobile is used as energy storage
Device, during electric automobile use, due to human negligence or equipment fault, it may appear that because electric energy exhausts and is parked in road
In situation, it is necessary to supplement the energy get near fill/change electric point.
The content of the invention
The invention aims to overcome the deficiencies in the prior art there is provided a kind of monitoring of vehicle-mounted mobile charging device to be
System, which reduces automobile charging circuit, Power convert in primary processor and battery monitor circuit, and vehicle-mounted mobile charging device
Potential difference between circuit, and communication and monitoring function production of the potential difference to whole vehicle-mounted mobile charging device monitoring system
Raw influence, improves whole vehicle-mounted mobile charging device monitoring system anti-interference.
Realizing a kind of technical scheme of above-mentioned purpose is：A kind of vehicle-mounted mobile charging device monitoring system, including main process task
Device, and ic for energy metering and battery monitor circuit, the ic for energy metering and the battery monitor circuit are all connected with institute
State primary processor；
The primary processor is connected with three tunnel CAN interfaces, and wherein first via CAN interface connection vehicle-mounted mobile fills
All power supplys in all automobile charging circuits in electric installation, the second tunnel CAN interface connection vehicle-mounted mobile charging device
Change-over circuit, the 3rd tunnel CAN connects all battery monitor circuits.
Further, the CAN interface includes CAN interface chip U3, CAN transceiving chip U4, and
First isolating chip U5 and the second isolating chip U6, the CAN interface chip U3 are provided with TXD1 interfaces and RXD1 interfaces,
The CAN transceiving chip U4 is provided with TXD2 interfaces and RXD2 interfaces, and it is total that the first isolating chip U5 is located at the CAN
Between line interface chip U3 TXD1 interfaces and the CAN transceiving chip U4 TXD2 interfaces, second isolating chip
U6 is located between the RXD1 interfaces of the CAN interface chip U3 and the RXD2 interfaces of the CAN transceiving chip U4.
Further, the first isolating chip U5 and the second isolating chip U6 uses identical Phototube Coupling core
Piece, the first isolating chip U5 and the second isolating chip U6 are oppositely arranged.
Further, the ic for energy metering include connecting the signal isolation transformation loop of the automobile charging circuit and
The metering communication loop of the primary processor is connected, the metering communication loop is provided with the electric energy meter for connecting the primary processor
Chip U1 is measured, the electric energy computation chip U1, which is provided with, to be used to receive the secondary signal from the signal isolation transformation loop
V1P interfaces and V1N interfaces, and for receiving the V2P interfaces of the first voltage signal from the signal isolation transformation loop
With V2N interfaces.
Further, the signal isolation transformation loop includes connecting the first Current Mutual Inductance of the automobile charging circuit
Device TV1；
Pass through electricity between the Same Name of Ends of the first current transformer TV1 primary sides and the live wire of the automobile charging circuit
R5 connections are hindered, the non-same polarity of the first current transformer TV1 primary sides connects the zero line of the automobile charging circuit, described
The non-same polarity ground connection of first current transformer TV1 low-pressure sides, Same Name of Ends connects the V2P interfaces of the electric energy computation chip U1,
Resistance R6, electric capacity C9, diode are parallel between the Same Name of Ends and non-same polarity of the low-pressure side of the first current transformer TV1
VD5 and diode VD6, wherein the diode VD5 negative pole ground connection, the plus earth of the diode VD6, the signal every
Also include being connected between the V2N interfaces of the electric energy computation chip U1 and earth terminal from transformation loop, electricity parallel with one another
Hinder R7 and electric capacity C10.
Further, the signal isolation transformation loop is also mutual including connecting the second electric current of the automobile charging circuit
Sensor TA1；
Non-same polarity connection and the filling corresponding to the automobile charging circuit of the second current transformer TA1 primary sides
The FireWire port port of electric rifle, the Same Name of Ends of the second current transformer TA1 primary sides connects the live wire of the automobile charging circuit,
The resistance R2 of the Same Name of Ends connection ground connection of the second current transformer TA1 low-pressure sides, the resistance R3 of non-same polarity connection ground connection,
The electric capacity C3 that the Same Name of Ends of the second current transformer TA1 is grounded by resistance R1 connections, and diode VD1 positive pole and
Diode VD2 negative pole, forms the V1P signal ends of connection electric energy computation chip U1 V1P interfaces, and second electric current is mutual
Electric capacity C4 that sensor TA1 non-same polarity is grounded by resistance R4 connections, and diode VD3 negative pole and diode VD4
Positive pole, forms the V1N signal ends of connection electric energy computation chip U1 V1N interfaces, the negative pole of the diode VD1, described
The negative pole of diode VD2 positive pole, the positive pole of the diode VD3 and the diode VD4 is grounded.
Further, the vehicle-mounted mobile charging device monitoring system also includes the equalizaing charge for connecting the primary processor
Circuit.
8. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：It is described vehicle-mounted
Mobile charging device monitoring system also includes keyboard, liquid crystal display, swiping card interface device and the language for connecting the primary processor
Sound suggestion device.
Further, the vehicle-mounted mobile charging device monitoring system also include the house dog for connecting the primary processor and
Warning device.
Further, the vehicle-mounted mobile charging device monitoring system also includes the wireless network for connecting the primary processor
Interface and GPS interface.
A kind of technical scheme of vehicle-mounted mobile charging device monitoring system of the present invention, including primary processor are employed, with
And ic for energy metering and battery monitor circuit, the ic for energy metering and the battery monitor circuit are all connected with the main place
Device is managed, the primary processor is connected with three tunnel CAN interfaces, wherein first via CAN interface connection vehicle-mounted mobile charging
All power supplys turn in all automobile charging circuits in device, the second tunnel CAN interface connection vehicle-mounted mobile charging device
Circuit is changed, the 3rd tunnel CAN connects all battery monitor circuits.It has the technical effect that：Reduce primary processor and battery
Potential difference in monitoring circuit, and vehicle-mounted mobile charging device between automobile charging circuit, power-switching circuit, and the electricity
The influence that communication and monitoring function of the potential difference to whole vehicle-mounted mobile charging device monitoring system are produced, improves whole vehicle-mounted mobile
Charging device monitoring system is anti-interference.
Brief description of the drawings
Fig. 1 is the structural representation of vehicle-mounted mobile charging device
Fig. 2 is a kind of structural representation of vehicle-mounted mobile charging device monitoring system of the present invention.
Fig. 3 is the structural representation of CAN interface in a kind of vehicle-mounted mobile charging device monitoring system of the invention.
Fig. 4 is the metering communication loop structure schematic diagram in a kind of vehicle-mounted mobile charging device monitoring system of the present invention.
Fig. 5 is the signal isolation transformation loop structural representation in a kind of vehicle-mounted mobile charging device monitoring system of the present invention
Figure.
Embodiment
Referring to Fig. 1, the present inventor is in order to be able to preferably understand technical scheme, lead to below
Specifically embodiment is crossed, and is described in detail with reference to accompanying drawing：
Referring to Fig. 1, vehicle-mounted mobile charging device includes：Charging control circuit 1, battery pack 2, power-switching circuit 3, vapour
Car charging circuit 4, monitoring system 5 and charging gun 6.Wherein monitoring system 5 is a kind of vehicle-mounted mobile charging device of the present invention
Monitoring system, power-switching circuit 3 can be inverter control circuit 31 and DC/DC conversion control circuits 32.Vehicle-mounted mobile charges
Device is fixed in mobile vehicle, and the Vehicular charging of traveling can not be continued because electric energy exhausts by being given on road.
If charging control circuit 1 connects dry cell batteries 2, each battery pack 2 connects a power-switching circuit 3, Mei Ge electricity
Power-switching circuit 3 is all connected with the automobile charging circuit 4 of matching, the charging gun 6 of the matching connection of automobile charging circuit 4.Battery pack 2 by
Large number of cell is combined by series/parallel mode, and charging gun 6 can be American Standard charging gun, Europe superscript charging gun
Or national standard charging gun.
The civil power that outside is provided is replaced as direct current by charging control circuit 1, and by being converted to of electric energy of direct current
Can be stored in battery pack 2.When externally output electric energy is needed, the chemical energy in battery pack 2 passes through Power convert electricity
Road 3 is converted into the alternating current of standard or meets the direct current of electric automobile demand.Charging electric vehicle circuit 4 is responsible for and external electrical
Electrical automobile is communicated, and charging gun 6 is managed and controlled.The chemical energy in battery pack 2 is converted in power-switching circuit 3
It is inverter control circuit 31 for the alternating current of standard, the chemical energy in battery pack 2 is converted into and meets electric automobile demand
Direct current is DC/DC conversion control circuits 32.
The control of monitoring system 5 charging control circuit 1, battery pack 2, power-switching circuit 3, automobile charging circuit 4 and charging
Rifle 6., and with display, metering, the function of charging.
Referring to Fig. 2, monitoring system 5 includes primary processor 50 and the ic for energy metering being connected with primary processor 50
51st, house dog 52, keyboard 53, liquid crystal display 54, swiping card interface device 55, sound prompt device 56, warning device 57, wireless
Network interface 58, GPS interface 59 and equalization charging circuit 500.Remote monitoring terminal can be realized to vehicle-mounted by GPS interface 59
The positioning of mobile charging device, the collection to vehicle-mounted mobile charging device status data, prison are realized by radio network interface 58
Depending on and remote transmission so that support in a wide range of to vehicle-mounted mobile charging device carry out centralized watch and control.Monitoring system
Three tunnel CAN interfaces are additionally provided with system 5.
First via CAN interface connects all automobile charging circuits 4, and each automobile charging circuit 4 connects corresponding
Charging gun 6.Automobile charging circuit 4 can complete corresponding under the control of primary processor 50, according to the difference of the standard of charging gun 6
Operation.
Second tunnel CAN interface connects all power-switching circuits 3, i.e., all inverter control circuits 31 and DC/
DC conversion control circuits 32.The low-voltage DC that correspondence battery pack 2 is stored is converted to standard by each inverter control circuit 31
Power frequency sinusoidal ac, while being monitored to the state parameter of reversals.DC/DC conversion control circuits 32 are predominantly straight
Flow electric automobile and charge power supply is provided, mainly realize that the low-voltage DC that battery pack 2 is stored is converted to the direct current of high voltage
Electricity, while the parameter such as temperature, voltage and current to conversion process is monitored.
3rd tunnel CAN interface connects all battery monitor circuits 20, each connection of battery monitor circuit 20 correspondence
Battery pack 2.Battery monitor circuit 20, the main state parameter realized to cell in battery pack 2 and battery pack 2, voltage,
Temperature etc., measures, monitors and assesses.The sensor for the monomer battery voltage that battery monitor circuit 20 is measured is also that equilibrium is filled
The important parameter acquisition sensor that circuit 500 is controlled to charging control circuit 1.
Ic for energy metering 51, house dog 52, keyboard 53, liquid crystal display 54, swiping card interface device 55, voice message dress
56, warning device 57, radio network interface 58 and GPS interface 59, equalization charging circuit 500 are put, with automobile charging circuit 4, inverse
Become control circuit 31, DC/DC conversion control circuits 32, battery monitor circuit 20, and primary processor 50 and its peripheral circuit are total to
It is same to constitute a complete distributed monitoring network, it is possible to implement comprehensive monitoring and control to vehicle-mounted mobile charging device.
Monitoring system 5 is with good expansibility, and is adapted to the vehicle-mounted mobile charging device of different scales.
In addition primary processor 5 is provided with necessary memory, clock and power supply.
CAN interface includes CAN interface chip U3, CAN transceiving chip U4, and the first isolating chip U5
With the second isolating chip U6.Wherein CAN interface chip U3 is SJA100 chips, and CAN transceiving chip U4 is 82C50 cores
Piece.First isolating chip U5 and the second isolating chip U6 is 6N137 chips.
Wherein CAN interface chip U3 be provided with AD0~AD7 interfaces, CS1 interfaces, ALE/AS1 interfaces, RD/E interfaces,
WR interfaces, INT1 interfaces, RST1 interfaces and CLKOUT1 interfaces.
Wherein INT1 interfaces pass through resistance R20 connection+5V power end of the resistance for 4.7k Ω.AD0~AD7 interfaces are used for real
Existing primary processor 50, and automobile charging circuit 4, inverter controller 31, DC/DC transform controllers 32, battery monitor circuit 20 it
Between communication.
Be additionally provided with CAN interface chip U3 TXD1 interfaces, TX1 interfaces, RXD1 interfaces, RX1 interfaces, MODE interfaces,
VDD1 interfaces, VDD2 interfaces, VDD3 interfaces, VSS1 interfaces, VSS2 interfaces, VSS3 interfaces, XTAL1 interfaces and XTAL2 interfaces, its
Middle RX1 interfaces are grounded by the resistance R8 connection+5V power ends that resistance is 2k Ω by resistance for 4.7k Ω resistance R19.
MODE interfaces, VDD1 interfaces, VDD2 interfaces and VDD3 interface connection+5V power ends, VSS1 interfaces, VSS2 interfaces, VSS3 interfaces
Ground connection, provided with the electric capacity C15 that capacitance is 0.1 μ F between earth terminal and+5V power ends.Between XTAL1 interfaces and XTAL2 interfaces
Clock circuit is connected, it is 16MHZ that the clock circuit, which includes two ends to connect XTAL1 interfaces and the vibration frequency of XTAL2 interfaces respectively,
Crystal oscillator jz2, and by XTAL1 interfacing grounds, the electric capacity C16 and resistance that the capacitance being sequentially connected in series is 30pF are 10M Ω
Resistance R9, and by the capacitance of XTAL2 interfacing grounds be 30pF electric capacity C17.
CAN transceiving chip U4 provided with TXD2 interfaces, RXD2 interfaces, VREF interfaces, RS interfaces, CANH interfaces,
CANL interfaces, VCC2 interfaces, GND2 interfaces, RS interfaces are grounded by resistance for 47k Ω resistance R12.CANH interfaces pass through resistance
Electric capacity C18 that the resistance R10 and capacitance that value is 5 Ω are 30pF ground connection, CANL interfaces by resistance for 5 Ω resistance R11 and
Capacitance is grounded for 30pF electric capacity C19, VCC2 interface connection+5V power ends, and passes through electric capacity C20 of the capacitance for 0.1 μ F
Ground connection.GND2 interfacing grounds.
First isolating chip U5 include NC5 interfaces, VF5+ interfaces, VF5- interfaces, NC7 interfaces, VE5 interfaces, VO5 interfaces,
GND5 interfaces and VCC5 interfaces.Wherein VF5+ interfaces connect+5V power ends by resistance for 1k Ω resistance R13, and VF5- interfaces connect
Connect CAN interface chip U3 TXD1 interfaces.VF5+ interfaces and VF5- interfaces pass through the first hair in the first isolating chip U5
Optical diode is connected.VE5 interfaces, VO5 interfaces, GND5 interfaces are connected in the first isolating chip U5 by the first PMOS, VE5
Interface, VO5 interfaces, base stage, emitter stage and the discrete pole of GND5 interfaces correspondence connection first PMOS.GND5 interfaces connect
Ground, VE5 interfaces are grounded by resistance R14 and capacitance that the resistance being sequentially connected in series is 10k Ω the electric capacity C21 for being 0.1 μ F, VO5
Interface by resistance for 330 Ω resistance R15 connection+5V power ends and connect the TXD2 interfaces on CAN transceiving chip U4,
VCC5 interface connection+5V power ends.
Second isolating chip U6 include NC6 interfaces, VF6+ interfaces, VF6- interfaces, NC8 interfaces, VE6 interfaces, VO6 interfaces,
GND6 interfaces and VCC6 interfaces.Wherein VF6+ interfaces connect+5V power ends by resistance for 1k Ω resistance R16, and VF6- interfaces connect
Connect the RXD2 interfaces on CAN transceiving chip U4.VF6+ interfaces and VF6- interfaces pass through second in the second isolating chip U6
Light emitting diode is connected.VE6 interfaces, VO6 interfaces, GND6 interfaces are connected in the second isolating chip U6 by the second PMOS,
VE6 interfaces, VO6 interfaces, base stage, emitter stage and the discrete pole of GND6 interfaces correspondence connection second PMOS.GND6 interfaces
Ground connection, VE6 interfaces are grounded by resistance R17 and capacitance that the resistance being sequentially connected in series is 10k Ω the electric capacity C22 for being 0.1 μ F,
VO6 interfaces are by the way that resistance is 330 Ω resistance R18 connection+5V power end and connects the RXD1 on CAN interface chip U3 and connects
Mouthful, VCC6 interface connection+5V power ends.
The monitoring system 5 of the vehicle-mounted mobile charging device is connected to the total of outside by the CAN interface shown in Fig. 3
Line expansion module, the potential difference for reducing different CAN expansion modules communicates and monitoring function generation shadow to monitoring system 5
Ring, while by the first isolating chip U5 and the second isolating chip U6 Phototube Coupling measure, improving monitoring system 5 anti-interference
Property.
Vehicle-mounted mobile charging device passes through to automobile charging circuit 4, inverter control circuit 31, DC/DC conversion control circuits
32nd, the modularized design of battery monitor circuit 20, by the CAN interface of standard and customized User-level communication realize with
Data between primary processor 50, signal, the transmission of control instruction and control parameter.
Ic for energy metering 51 includes signal isolation transformation loop 512 and metering communication loop 511.
Metering communication loop 511 includes electric energy computation chip U1, and electric energy computation chip U1 is ADE7758 electric energy metrical cores
Piece.Electric energy computation chip U1 provided with RESET interfaces, DVDD interfaces, AVDD interfaces, V1P interfaces, V1N interfaces, V2N interfaces,
V2P interfaces, AGND interfaces, REFin/out interfaces, DGND interfaces, DIN interfaces, DOUT interfaces, SCLK interfaces, CS0 interfaces,
CLKOUT interfaces, CLKIN interfaces, IRQ interfaces, SAG interfaces, ZX interfaces and CF interfaces.
Wherein, RESET interfaces, DVDD interfaces, AVDD interfaces connect+5V power ends and by polarity electricity parallel with one another simultaneously
Hold C2 and electric capacity C1 digital groundings.Wherein polar capacitor C2 capacitance is 10 μ F, breakdown voltage 50V.Electric capacity C1 capacitance
0.1μF.AGND interface analogue grounds.DGND interface digital groundings.REFin/out interfaces, pass through mutual polar capacitor C8 in parallel
With electric capacity C7 digital grounding and analogue grounds simultaneously.Wherein polar capacitor C8 capacitance is 10 μ F, breakdown voltage 50V.Electric capacity
The C7 μ F of capacitance 0.1.DIN interfaces and DOUT interfaces connection primary processor 50.It is provided between CLKOUT interfaces and CLKIN interfaces
Measurement clock circuit, the measurement clock circuit includes the crystal oscillator Y1 being connected between CLKOUT interfaces and CLKIN interfaces, and
Be connected to CLKOUT interfaces and digitally between capacitance for 22pF electric capacity C5 and be connected to CLKIN interfaces and digitally
Between capacitance be 22pF electric capacity C6.
Signal isolation transformation loop 512 includes the first current transformer TV1 and the second electric current of connection automobile charging circuit 4
Transformer TA1, wherein connecting resistance between the Same Name of Ends of the first current transformer TV1 primary sides and the live wire of automobile charging circuit 4
It is worth the resistance R5 for 200k Ω, the non-same polarity of the first current transformer TV1 primary sides connects the zero line of automobile charging circuit 4,
First current transformer TV1 low-pressure sides non-same polarity ground connection, while the Same Name of Ends of the first current transformer TV1 low-pressure side and
Electric capacity C9, diode VD5 and diode that resistance R6, capacitance that resistance is 200 Ω are 33nF are parallel between non-same polarity
VD6, wherein diode VD5 negative pole ground connection, diode VD6 plus earth.First current transformer TV1 low-pressure side it is same
Name forms the V2P signal ends of connection electric energy computation chip U1 V2P interfaces.Synchronous signal isolated variable loop 512 also includes connecting
It is connected between electric energy computation chip U1 V2N interfaces and earth terminal, resistance R7 and electric capacity that resistance parallel with one another is 1k Ω
It is worth the electric capacity C10 for 33nF, is the V2N signal ends of signal isolation transformation loop 512.
The zero line of the zero line port connection automobile charging circuit 4 of charging gun 6, the electricity of FireWire port port connection second of charging gun 6
The non-same polarity of current transformer TA1 primary sides, the Same Name of Ends connection automobile charging circuit 4 of the second current transformer TA1 primary sides
Live wire.The Same Name of Ends connection resistance of second current transformer TA1 low-pressure sides is the resistance R2 of 200 Ω and ground connection, non-same polarity
The resistance R3 that resistance is 200 Ω and ground connection is connected, the Same Name of Ends of the second current transformer TA1 low-pressure sides is 1k Ω's by resistance
Resistance R1 connections capacitance be 33nF and ground connection electric capacity C3, and diode VD1 positive pole and diode VD2 negative pole, shape
Into the V1P signal ends of signal isolation transformation loop 512.Second current transformer TA1 non-same polarity is 1k Ω's by resistance
Resistance R4 connections capacitance be 33nF and ground connection electric capacity C4, and diode VD3 negative pole and diode VD4 positive pole, shape
Into the V1N signal ends of signal isolation transformation loop 512.Diode VD1 negative pole, diode VD2 positive pole, diode VD3
Positive pole and diode VD4 negative pole are grounded.
Signal isolation transformation loop 512 is first converted to alternating voltage by resistance R5 2mA current signal, Ran Houtong
Cross the first current transformer TV1 and carry out isolated variable, in one amplitude about 2mA of low-pressure side formation AC signal, by low
Press the first voltage signal of side 200 Ω in parallel resistance R6 formation change proportional to primary side voltage, i.e. V2P signals with
V2N signals.For current signal measurement, in charging gun 6 or automobile charging circuit 4, series connection the second current transformer TA1 is electricity
Stream is converted into the 5A of standard rated current signal in proportion, then passes through the second electric current in signal isolation transformation loop 512
The rated current signal of second current transformer TA1 primary side, is converted into the second current transformer TA1 by transformer TA1
Low-pressure side low-voltage signal, and by the low-pressure side parallel resistance R2 and resistance R3 in the second current transformer TA1, obtain with
The second voltage signal of the proportional change of primary current is V1N signals and V1N signals.
Voltage and current signal by isolated variable is delivered to electric energy computation chip U1 by metering communication loop 511, complete
Into phase, amplitude, virtual value measurement, and calculate power and power parameter, pass to primary processor 50.
Ic for energy metering 51 can carry out voltage, electric current, active, idle and apparent power measurement, fully meet vehicle-mounted shifting
The demand of metering, monitoring and the charging of dynamic charging device.The measuring accuracy of ic for energy metering 51 is high and will not receive external interference
The influence of signal.
Those of ordinary skill in the art it should be appreciated that the embodiment of the above be intended merely to explanation the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all fall in the range of claims of the present invention.
Claims (10)
1. a kind of vehicle-mounted mobile charging device monitoring system, including primary processor, and ic for energy metering and battery monitoring electricity
Road, the ic for energy metering and the battery monitor circuit are all connected with the primary processor, it is characterised in that：
The primary processor is connected with three tunnel CAN interfaces, wherein first via CAN interface connection vehicle-mounted mobile charging dress
All Power converts in all automobile charging circuits in putting, the second tunnel CAN interface connection vehicle-mounted mobile charging device
Circuit, the 3rd tunnel CAN connects all battery monitor circuits.
2. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The CAN
Interface includes CAN interface chip U3, CAN transceiving chip U4, and the first isolating chip U5 and the second isolating chip
U6, the CAN interface chip U3 are provided with TXD1 interfaces and RXD1 interfaces, and the CAN transceiving chip U4 is provided with
TXD2 interfaces and RXD2 interfaces, the first isolating chip U5 are located at TXD1 interfaces and the institute of the CAN interface chip U3
Between the TXD2 interfaces for stating CAN transceiving chip U4, the second isolating chip U6 is located at the CAN interface chip U3
RXD1 interfaces and the CAN transceiving chip U4 RXD2 interfaces between.
3. a kind of vehicle-mounted mobile charging device monitoring system according to claim 2, it is characterised in that：First isolation
Chip U5 and the second isolating chip U6 uses identical photoelectric isolated chip, the first isolating chip U5 and described second
Isolating chip U6 is oppositely arranged.
4. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The electric energy metrical
Circuit includes connecting the signal isolation transformation loop of the automobile charging circuit and connects the metering communication time of the primary processor
Road, the metering communication loop is provided with the electric energy computation chip U1, the electric energy computation chip U1 for connecting the primary processor
It is provided with the V1P interface and V1N interfaces for being used for receiving the second voltage signal from the signal isolation transformation loop, Yi Jiyong
In the V2P interfaces and V2N interfaces that receive the first voltage signal from the signal isolation transformation loop.
5. a kind of vehicle-mounted mobile charging device monitoring system according to claim 4, it is characterised in that：The signal isolation
Transformation loop includes connecting the first current transformer TV1 of the automobile charging circuit；
Pass through resistance R5 between the Same Name of Ends of the first current transformer TV1 primary sides and the live wire of the automobile charging circuit
Connection, the non-same polarity of the first current transformer TV1 primary sides connects the zero line of the automobile charging circuit, described first
The non-same polarity ground connection of current transformer TV1 low-pressure sides, Same Name of Ends connects the V2P interfaces of the electric energy computation chip U1, described
Resistance R6, electric capacity C9, diode VD5 are parallel between the Same Name of Ends and non-same polarity of first current transformer TV1 low-pressure side
With diode VD6, wherein the diode VD5 negative pole ground connection, the plus earth of the diode VD6, the signal isolation
Transformation loop also includes being connected between the V2N interfaces of the electric energy computation chip U1 and earth terminal, resistance parallel with one another
R7 and electric capacity C10.
6. a kind of vehicle-mounted mobile charging device monitoring system according to claim 5, it is characterised in that：The signal isolation
Transformation loop also includes the second current transformer TA1 for connecting the automobile charging circuit；
Non-same polarity connection and the charging gun corresponding to the automobile charging circuit of the second current transformer TA1 primary sides
FireWire port port, the Same Name of Ends of the second current transformer TA1 primary sides connects the live wire of the automobile charging circuit, described
The resistance R2 of the Same Name of Ends connection ground connection of second current transformer TA1 low-pressure sides, the resistance R3 of non-same polarity connection ground connection, it is described
The electric capacity C3 that second current transformer TA1 Same Name of Ends is grounded by resistance R1 connections, and diode VD1 positive pole and two poles
Pipe VD2 negative pole, forms the V1P signal ends of connection electric energy computation chip U1 V1P interfaces, second current transformer
The electric capacity C4 that TA1 non-same polarity is grounded by resistance R4 connections, and diode VD3 negative pole and diode VD4 positive pole,
Form the V1N signal ends of connection electric energy computation chip U1 V1N interfaces, negative pole, the diode of the diode VD1
The negative pole of VD2 positive pole, the positive pole of the diode VD3 and the diode VD4 is grounded.
7. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The vehicle-mounted mobile
Charging device monitoring system also includes the equalization charging circuit for connecting the primary processor.
8. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The vehicle-mounted mobile
Keyboard, liquid crystal display, swiping card interface device and the voice that charging device monitoring system also includes connecting the primary processor are carried
Showing device.
9. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The vehicle-mounted mobile
Charging device monitoring system also includes house dog and the warning device for connecting the primary processor.
10. a kind of vehicle-mounted mobile charging device monitoring system according to claim 1, it is characterised in that：The vehicle-mounted shifting
Dynamic charging device monitoring system also includes the radio network interface and GPS interface for connecting the primary processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710116023.2A CN107054122A (en) | 2017-03-01 | 2017-03-01 | A kind of vehicle-mounted mobile charging device monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710116023.2A CN107054122A (en) | 2017-03-01 | 2017-03-01 | A kind of vehicle-mounted mobile charging device monitoring system |
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| CN107054122A true CN107054122A (en) | 2017-08-18 |
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| CN201710116023.2A Pending CN107054122A (en) | 2017-03-01 | 2017-03-01 | A kind of vehicle-mounted mobile charging device monitoring system |
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Application publication date: 20170818 |