CN102882249B - System for communication between off-board direct current charger and electric vehicle - Google Patents
System for communication between off-board direct current charger and electric vehicle Download PDFInfo
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- CN102882249B CN102882249B CN201210338746.4A CN201210338746A CN102882249B CN 102882249 B CN102882249 B CN 102882249B CN 201210338746 A CN201210338746 A CN 201210338746A CN 102882249 B CN102882249 B CN 102882249B
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Abstract
The invention provides a system for communication between an off-board direct current charger and an electric vehicle. Each of the charger and the electric vehicle comprises a high-speed power line carrier communication module. The high-speed power line carrier communication modules comprise the high-speed power line carrier communication module A in the charger and the high-speed power line carrier communication module B in the electric vehicle. After the connection of the charger is detected through a CC2, a vehicle control device initiates communication connection with the charger through the high-speed power line carrier communication module B; and the charger establishes connection with the vehicle control device through the high-speed power line carrier communication module, and outputs direct current power on DC+ and DC- according to control parameters of the vehicle control device to charge a battery pack of the electric vehicle after the communication is normal. According to the system for the communication between the off-board direct current charger and the electric vehicle, a high-speed power carrier communication mode is adopted, and a communication rate is high.
Description
Technical field
The present invention relates to charging electric vehicle field, be specifically related to the system that a kind of non-Vehicular direct-current charger communicates with electric automobile.
Background technology
Typical electric automobile charging station mainly comprises other auxiliary equipment such as electric power system, charging system, supervisory control system, protection system and civil engineering.Wherein, charging station charging system mainly comprises alternating-current charging pile and non-Vehicular direct-current charger, is the nucleus equipment of charging station.
Electric automobile non-Vehicular direct-current charger refer to a kind of be arranged on electric automobile external, AC energy is transformed to direct current energy and adopts conduction pattern to be the special purpose device of electric powered motor charge in batteries.In order to safe and reliable realization charging, must control in real time whole charging process, controller of vehicle refers to one and is arranged in electric automobile, the operation, charging etc. of electric automobile are carried out to the professional device of comprehensive Monitor and Control, it is an important function to the monitoring of charging process, is the key function realizing electric automobile energy supply.Charging electric vehicle process be exactly controller of vehicle by battery management module, gather battery pack information, by special control algolithm, control charger process that battery pack is charged.Therefore controller of vehicle must in whole charging process, and real-time communicates with charger, adjustment charger parameter.At present, conventional communication means mainly contains following several:
(1) CAN communication: this method can the highest traffic rate realizing 500kbps, Signal transmissions adopts differential mode, can realize comparatively long haul communication.This method major defect is that traffic rate is lower, needs special shielded communication cable.
(2) RS422 communication: this method can realize long haul communication, and can full-duplex communication.The shortcoming of this method is that traffic rate is very low, needs two to special holding wire.
(3) RS485 communication: this method can realize long haul communication, but traffic rate is very low, and can only half-duplex operation, needs special shielded communication cable.
(4) RS232 communication: this communication means can realize full-duplex communication, and shortcoming is that communication distance is shorter, when charger and electric automobile are apart from time distant, may affect communication quality, and traffic rate is very low, needs special shielded communication cable.
Be illustrated in figure 1 traditional charger and electric automobile part annexation block diagram, as shown in Figure 1, charger comprises vehicle plug, rectification module and charger control device, electric automobile comprises vehicle socket, battery pack and battery management unit and controller of vehicle, 9 splicing ears are comprised in vehicle plug and vehicle socket, the power terminal of DC+, DC-, DC charging respectively, PE, protective earthing terminal, S+, S-, special signal of communication can be the communication modes such as CAN, RS485 or RS232, CC1, CC2 are that vehicle connection confirms to be connected confirmation signal with charger respectively, A+, A-are that charger is to the auxiliary power supply line of Vehicular charging control system part supply working power, after the vehicle plug of non-Vehicular charger is connected with the vehicle socket of electric automobile, by CC1, non-Vehicular direct-current charger detects that vehicle connects, pass through A+, A-powers to controller of vehicle, controller of vehicle is started working, detect that non-Vehicular charger connects by CC2, controller of vehicle passes through S+, S-initiates the communication connection with non-Vehicular charger, after communication is normal, non-Vehicular direct-current charger closes K1, K2, electric automobile closes K5, K6, non-Vehicular direct-current charger is according to the controling parameters of controller of vehicle, through rectification module, at DC+, DC-exports DC power supply, batteries of electric automobile group is charged.
The limitation of existing communication method, limits the overall performance that electric automobile battery charger communicates with controller of vehicle, have impact on the Industry Promotion application of electric automobile battery charger.Along with the continuous growth of charging electric vehicle demand, be badly in need of improving or proposing new communication means.
Summary of the invention
The present invention is directed to communicate with the controller of vehicle speed that exists of existing electric automobile non-Vehicular direct-current charger low, poor reliability, need the shortcoming and defect such as private mask telecommunication cable, the system that a kind of non-Vehicular direct-current charger communicates with electric automobile is provided, described charger comprises interconnective vehicle plug and charger control device, described electric automobile comprises battery pack and battery management unit, vehicle socket and the controller of vehicle be connected with vehicle socket, described vehicle plug and vehicle socket comprise 7 splicing ear: DC+, DC-, PE, CC1, CC2, A+ and A-, by CC1, described charger detects that described electric automobile connects, pass through A+, A-powers to described electric automobile, described controller of vehicle is started working, detect that described charger connects by CC2, described charger and electric automobile include high speed power line carrier communication module, described high speed power line carrier communication module comprises the high speed power line carrier communication module A be positioned in described charger and the high speed power line carrier communication module B be positioned in described electric automobile,
After detecting that described charger connects by CC2, described controller of vehicle initiates the communication connection with described charger by described high speed power line carrier communication module B; Described charger is connected by described Power Line Carrier Communication Module A and described controller of vehicle, after communication is normal, described charger, according to the controling parameters of described controller of vehicle, DC+, DC-exports DC power supply, charges to the battery pack of described electric automobile.
In first preferred embodiment provided by the invention: described charger comprises charger control device, rectification module, vehicle plug and high speed power line carrier communication module A;
Described charger control device is connected by CAN with described rectification module, is connected by Ethernet with described high speed power line carrier communication module A;
Described high speed power line carrier communication module A is connected with described controller of vehicle, obtain the controling parameters of described charging electric vehicle, by described controling parameters through Algorithm Analysis, form the controling parameters to described rectification module, described controling parameters is passed to described rectification module, makes described rectification module export charging voltage and the electric current of charging electric vehicle demand.
In second preferred embodiment provided by the invention: described electric automobile comprises vehicle socket, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit;
Described controller of vehicle is communicated with battery management unit by CAN, obtain the state of battery pack, calculate through algorithm, obtain the controling parameters controlling described charger, described controller of vehicle is connected with described high speed power line carrier communication module B by Ethernet, the controling parameters of described charger will be delivered to the high speed power line carrier communication module A of described charger by A+, A-, control charging voltage and electric current that described charger exports demand.
In 3rd preferred embodiment provided by the invention: the method that described charger is connected by described Power Line Carrier Communication Module A and described controller of vehicle is:
Described controller of vehicle by described high speed power line carrier communication module B by coupling communication signals on A+ and A-of described vehicle socket, described signal of communication is delivered to after on A+ and A-in described vehicle plug, by described coupling communication signals in described high speed power line carrier communication module A.
In 4th preferred embodiment provided by the invention: described high speed power line carrier communication module A and high speed power line carrier communication module B is coupled respectively by coupling circuit A and coupling circuit B;
Described coupling circuit adopts transformer coupled mode, and the input and output of described high speed power line carrier communication module are coupled respectively by input tape bandpass filter with after exporting band pass filter by signal coupling transformer;
Signal of communication after described coupling is connected with A+ and A-respectively by coupling capacitance, is connected with the two-way TVS pipe of guard signal circuit between described A+ and A-.
In 5th preferred embodiment provided by the invention: when described electric automobile is passenger car, supply voltage is 12V, and the rated voltage of described TVS pipe elects 18V as; When described electric automobile is commercial car, supply voltage is 24V, and the rated voltage of described TVS pipe elects 36V as;
The capacitance of described coupling capacitance is 53PF;
The model of described signal coupling transformer is 5024-X096;
The passband of described input tape bandpass filter and output band pass filter is 2Mhz-28Mhz.
In 6th preferred embodiment provided by the invention: described high-speed power carrier communication module comprises the analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connect successively;
Described Homeplug chip configuration a slice SDRAM runs as program and the space of store data;
Described coupling circuit is connected with described analog front circuit, and described RJ45 module is connected with described charger control device or controller of vehicle;
The signal of coming from coupling circuit after described analog front circuit processes with described Homeplug chip interface, described Homeplug chip adopts Ethernet to be connected with described controller of vehicle or charger control device by described RJ45 interface.
In 7th preferred embodiment provided by the invention: described analog front circuit adopts INT1400 chip;
Described Homeplug chip adopts INT6400 chip, described INT6400 chip adopts OFDM modulation pattern, support 1024/256/64/16/8-QAM, QPSK, BPSK and ROBO more modulation pattern, traffic rate reaches 200Mbps, and simultaneously INT6400 is ARM926EJ-S 32 risc processors, is configured with a slice SDRAM and runs as program and the space of store data;
Described physical chip adopts RTL8201 chip.
The beneficial effect of the system that a kind of non-Vehicular direct-current charger provided by the invention communicates with electric automobile comprises:
1, the system that communicates with electric automobile of a kind of non-Vehicular direct-current charger provided by the invention, charger and electric automobile include high speed power line carrier communication module, and adopt high-speed power carrier communication mode, traffic rate is high.
2, the high speed power line carrier communication module that comprises of charger and electric automobile all by coupling circuit by coupling communication signals to the enterprising Serial Communication of A+ and A-, coupling communication signals can also be transmitted on other signals or power line, not need extra telecommunication cable.
3, coupling circuit adopts TVS pipe protection, by electric capacity and transformer-coupled carrier signal, and is configured with band pass filter, ensure that reliability and the fail safe of communication.
Accompanying drawing explanation
Fig. 1 is traditional charger and electric automobile part annexation block diagram;
Fig. 2 is charger provided by the invention and electric automobile part annexation block diagram;
Fig. 3 is charger theory diagram provided by the invention;
Fig. 4 is the theory diagram of the live part of electric automobile provided by the invention;
Fig. 5 is the circuit theory diagrams of coupling circuit provided by the invention;
Fig. 6 is the inside theory diagram of high-speed power carrier communication module provided by the invention and the structural representation that is connected with outside thereof.
Embodiment
Non-Vehicular direct-current charger is the special purpose device of electric powered motor charge in batteries; charger comprises interconnective charger control device and vehicle plug; the controller of vehicle that electric automobile comprises battery pack and battery management unit, vehicle socket and is connected with vehicle socket; vehicle socket and vehicle plug comprise 7 splicing ears; power terminal DC+ and DC-of DC charging respectively; protective earthing terminal PE; vehicle connects confirmation and is connected confirmation signal CC1 and CC2 with charger, and charger is to auxiliary power supply line A+, A-of Rechargeable vehicle supply working power.After the vehicle plug of charger is connected with the vehicle socket of electric automobile, by CC1, charger detects that vehicle connects, pass through A+, A-powers to controller of vehicle, controller of vehicle is started working, detect that non-Vehicular charger connects by CC2, controller of vehicle passes through S+, S-initiates the communication connection with non-Vehicular charger, after communication is normal, non-Vehicular direct-current charger closes K1, K2, electric automobile closes K5, K6, non-Vehicular direct-current charger is according to the controling parameters of controller of vehicle, through rectification module, at DC+, DC-exports DC power supply, batteries of electric automobile group is charged.
The system that a kind of non-Vehicular direct-current charger provided by the invention communicates with electric automobile, charger and electric automobile part annexation block diagram are as shown in Figure 2, as shown in Figure 2, charger and electric automobile include high speed power line carrier communication module, this high speed power line carrier communication module comprises the high speed power line carrier communication module A be positioned in charger and the high speed power line carrier communication module B be positioned in electric automobile, charger is connected with electric automobile and relates to 7 terminals, power terminal DC+ and DC-of DC charging respectively, protective earthing terminal PE vehicle connects confirmation and is connected confirmation signal CC1 and CC2 with charger, non-Vehicular direct-current charger is to auxiliary power supply line A+ and A-of Vehicular charging control system part supply working power.
By CC1, charger detects that vehicle connects, pass through A+, A-powers to controller of vehicle, controller of vehicle is started working, detect that non-Vehicular charger connects by CC2, controller of vehicle is by high speed power line carrier communication module, initiate the communication connection with non-Vehicular charger, charger also passes through Power Line Carrier Communication Module, connect with controller of vehicle, after communication is normal, charger closes K1, K2, electric automobile closes K5, K6, charger is according to the controling parameters of controller of vehicle, at DC+, DC-exports DC power supply, batteries of electric automobile group is charged.
Be illustrated in figure 3 charger theory diagram provided by the invention, as shown in Figure 3, charger comprises charger control device, rectification module, high speed power line carrier communication module A and vehicle plug.Wherein charger control device is connected by CAN with rectification module, be connected by Ethernet with high speed power line carrier communication module, its major function is, be connected with electric automobile vehicle control device by high speed power line carrier communication module, obtain the controling parameters of charging electric vehicle, by the Algorithm Analysis of controling parameters through specialty, form the controling parameters to rectification module, by this Parameter transfer to rectification module, rectification module is made to export charging voltage and the electric current of charging electric vehicle demand.
Be illustrated in figure 4 the theory diagram of the live part of electric automobile provided by the invention, as shown in Figure 4, the live part of electric automobile comprises vehicle socket, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit.Controller of vehicle is communicated with battery management unit by CAN, obtain the state of battery pack, calculate through special algorithm, obtain the controling parameters controlling electric automobile battery charger, controller of vehicle is connected with high speed power line carrier communication module by Ethernet, the controling parameters of non-Vehicular direct-current charger will be delivered to the high speed power line carrier communication module of non-Vehicular charger by A+, A-, control charging voltage and electric current that non-Vehicular direct-current charger exports demand.
The method that charger is connected by Power Line Carrier Communication Module A and controller of vehicle is:
Controller of vehicle by described high speed power line carrier communication module B by coupling communication signals on A+ and A-of vehicle socket, signal of communication is delivered to after on A+ and A-in vehicle plug, by coupling communication signals in described high speed power line carrier communication module A.
High speed power line carrier communication module A and high speed power line carrier communication module B is coupled respectively by coupling circuit A and coupling circuit B, the circuit theory diagrams of coupling circuit as shown in Figure 5, the input and output of high speed power line carrier communication module are coupled to A+ respectively by after Tx Band pass and Rx Band pass by signal coupling transformer T1 or T2, on A-, TR1 or TR2 is connected with between A+ and A-, TR1 and TR2 is the two-way TVS pipe of guard signal circuit, due to A+, supply voltage on A-is according to passenger car or commercial car difference, be respectively 12V or 24V, therefore this TVS pipe can select rated voltage to be the two-way TVS pipe of 18V or 36V.Signal of communication after coupling is connected with A-respectively by Cplc and A+, and Cplc is coupling capacitance, gets 53pf.Signal coupling transformer T1 and T2 can select the models such as 5024-X096.Tx Band pass and Rx Band pass is input/output signal filter, and passband is 2MHz-28MHz.
The inside theory diagram being illustrated in figure 6 high-speed power carrier communication module and the structural representation be connected with outside thereof, as shown in Figure 6, this high-speed power carrier communication module comprises the analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connect successively; Homeplug chip configuration a slice SDRAM runs as program and the space of store data; Coupling circuit is connected with analog front circuit, and RJ45 interface is connected with charger control device or controller of vehicle;
The signal of coming from coupling circuit after analog front circuit processes with Homeplug chip interface, Homeplug chip adopts Ethernet by RJ45 interface and states controller of vehicle or charger control device is connected.
Analog front circuit adopts INT1400 chip; Homeplug chip adopts INT6400 chip, INT6400 chip adopts OFDM(Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi) modulating mode, support 1024/256/64/16/8-QAM, QPSK, the more modulation pattern communication speed such as BPSK and ROBO can reach 200Mbps, and simultaneously INT6400 is ARM926EJ-S 32 risc processors, are configured with a slice SDRAM and run as program and the space of store data; Physical chip adopts RTL8201.
Although be described in detail embodiments of the invention with reference to the accompanying drawings above, be not limited only to this embodiment, various equivalent, the deformation process that those skilled in the art carries out according to this concrete technical scheme, also within protection scope of the present invention.
Claims (6)
1. the system that communicates with electric automobile of a non-Vehicular direct-current charger, described charger comprises interconnective vehicle plug and charger control device, described electric automobile comprises battery pack and battery management unit, vehicle socket and the controller of vehicle be connected with vehicle socket, described vehicle plug and vehicle socket comprise 7 splicing ear: DC+, DC-, PE, CC1, CC2, A+ and A-, by CC1, described charger detects that described electric automobile connects, pass through A+, A-powers to described electric automobile, described controller of vehicle is started working, detect that described charger connects by CC2, it is characterized in that,
Described charger and electric automobile include high speed power line carrier communication module, and described high speed power line carrier communication module comprises the high speed power line carrier communication module A be positioned in described charger and the high speed power line carrier communication module B be positioned in described electric automobile;
After detecting that described charger connects by CC2, described controller of vehicle initiates the communication connection with described charger by described high speed power line carrier communication module B; Described charger is connected by described Power Line Carrier Communication Module A and described controller of vehicle, after communication is normal, described charger, according to the controling parameters of described controller of vehicle, DC+, DC-exports DC power supply, charges to the battery pack of described electric automobile;
Described charger comprises charger control device, rectification module, vehicle plug and high speed power line carrier communication module A;
Described charger control device is connected by CAN with described rectification module, is connected by Ethernet with described high speed power line carrier communication module A;
Described high speed power line carrier communication module A is connected with described controller of vehicle, obtain the controling parameters of described charging electric vehicle, by described controling parameters through Algorithm Analysis, form the controling parameters to described rectification module, described controling parameters is passed to described rectification module, makes described rectification module export charging voltage and the electric current of charging electric vehicle demand;
Described electric automobile comprises vehicle socket, high speed power line carrier communication module B, controller of vehicle and battery pack and battery management unit;
Described controller of vehicle is communicated with described battery pack and battery management unit by CAN, obtain the state of battery pack and battery, calculate through algorithm, obtain the controling parameters controlling described charger, described controller of vehicle is connected with described high speed power line carrier communication module B by Ethernet, the controling parameters of described charger will be delivered to the high speed power line carrier communication module A of described charger by A+, A-, control charging voltage and electric current that described charger exports demand.
2. the system as claimed in claim 1, is characterized in that, the method that described charger is connected by described Power Line Carrier Communication Module A and described controller of vehicle is:
Described controller of vehicle by described high speed power line carrier communication module B by coupling communication signals on A+ and A-of described vehicle socket, described signal of communication is delivered to after on A+ and A-in described vehicle plug, by described coupling communication signals in described high speed power line carrier communication module A.
3. the system as claimed in claim 1, is characterized in that,
Described high speed power line carrier communication module A and high speed power line carrier communication module B is coupled respectively by coupling circuit A and coupling circuit B;
Described coupling circuit adopts transformer coupled mode, and the input and output of described high speed power line carrier communication module are coupled respectively by input tape bandpass filter with after exporting band pass filter by signal coupling transformer;
Signal of communication after coupling is connected with A+ and A-respectively by coupling capacitance, is connected with the two-way TVS pipe of guard signal circuit between described A+ and A-.
4. system as claimed in claim 3, it is characterized in that, when described electric automobile is passenger car, supply voltage is 12V, and the rated voltage of described TVS pipe elects 18V as; When described electric automobile is commercial car, supply voltage is 24V, and the rated voltage of described TVS pipe elects 36V as;
The capacitance of described coupling capacitance is 53PF;
The model of described signal coupling transformer is 5024-X096;
The passband of described input tape bandpass filter and output band pass filter is 2Mhz-28Mhz.
5. system as claimed in claim 3, it is characterized in that, described high-speed power carrier communication module comprises the analog front circuit, Homeplug chip, physical chip and the RJ45 interface that connect successively;
Described Homeplug chip configuration a slice SDRAM runs as program and the space of store data;
Described coupling circuit is connected with described analog front circuit, and described RJ45 interface is connected with described charger control device or controller of vehicle;
The signal of coming from coupling circuit after described analog front circuit processes with described Homeplug chip interface, described Homeplug chip adopts Ethernet to be connected with described controller of vehicle or charger control device by described RJ45 interface.
6. system as claimed in claim 5, is characterized in that,
Described analog front circuit adopts INT1400 chip;
Described Homeplug chip adopts INT6400 chip, described INT6400 chip adopts OFDM modulation pattern, support 1024/256/64/16/8-QAM, QPSK, BPSK and ROBO more modulation pattern, traffic rate reaches 200Mbps, and simultaneously INT6400 is ARM926EJ-S 32 risc processors, is configured with a slice SDRAM and runs as program and the space of store data;
Described physical chip adopts RTL8201 chip.
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| CN201210338746.4A CN102882249B (en) | 2012-09-13 | 2012-09-13 | System for communication between off-board direct current charger and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013097815A1 (en) | 2011-12-31 | 2013-07-04 | 深圳市比亚迪汽车研发有限公司 | Electric automobile and power system switching between charging/discharging and driving functions |
| CN103904737B (en) * | 2014-03-18 | 2017-11-10 | 国家电网公司 | A kind of one two electric automobile direct-current charging post filled |
| KR101619623B1 (en) * | 2014-10-20 | 2016-05-10 | 현대자동차주식회사 | System and method for reprogramming of vehicle controller |
| CN105823957B (en) * | 2016-02-26 | 2020-01-21 | 保定友源电力科技有限公司 | Electric automobile direct current interface connection state and communication performance test system that charges |
| CN107231018A (en) * | 2017-05-03 | 2017-10-03 | 上海蔚来汽车有限公司 | AC charging equipment and the tdm communication method and system of object to be charged |
| CN107972524A (en) * | 2017-12-29 | 2018-05-01 | 智车优行科技（北京）有限公司 | A kind of electric automobile charging identification device and method |
| CN112769174B (en) * | 2020-12-28 | 2023-02-17 | 山东鲁软数字科技有限公司智慧能源分公司 | Auxiliary power supply for off-board charging motor and method thereof |
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| CN101917046A (en) * | 2010-07-23 | 2010-12-15 | 奇瑞汽车股份有限公司 | Charger and control strategy thereof |
| CN102545342A (en) * | 2012-02-15 | 2012-07-04 | 深圳市理工新能源有限公司 | Charging system for electric vehicle and vehicular charging method of electric vehicle |
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| US7471066B2 (en) * | 2004-12-22 | 2008-12-30 | Odyne Corporation | Battery management and equalization system for batteries using power line carrier communications |
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| CN101917046A (en) * | 2010-07-23 | 2010-12-15 | 奇瑞汽车股份有限公司 | Charger and control strategy thereof |
| CN102545342A (en) * | 2012-02-15 | 2012-07-04 | 深圳市理工新能源有限公司 | Charging system for electric vehicle and vehicular charging method of electric vehicle |
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