CN107757415A - A kind of electric tractor intelligent charger - Google Patents

A kind of electric tractor intelligent charger Download PDF

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Publication number
CN107757415A
CN107757415A CN201711151299.0A CN201711151299A CN107757415A CN 107757415 A CN107757415 A CN 107757415A CN 201711151299 A CN201711151299 A CN 201711151299A CN 107757415 A CN107757415 A CN 107757415A
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CN
China
Prior art keywords
power
mcu
charging
communication
module
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Pending
Application number
CN201711151299.0A
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Chinese (zh)
Inventor
刘莫尘
李承�
闫银发
刘双喜
李法德
宋占华
盖顺华
许荣浩
王广瑞
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Shandong Agricultural University
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Shandong Agricultural University
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Priority to CN201711151299.0A priority Critical patent/CN107757415A/en
Publication of CN107757415A publication Critical patent/CN107757415A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles

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  • Secondary Cells (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to a kind of electric tractor intelligent charger, including master control borad, touch-screen, PDA, Switching Power Supply, AC/DC power modules, and DC charging rifle;DC charging rifle includes direct current supply line and connection, and direct current supply line is used to be charged for electric tractor battery bag;Connection is connected with BMS discharge and recharge CAN communication interfaces;BMS discharge and recharge CAN communication interfaces are communicated by CAN and master control borad, send the parameters such as cell voltage electric current, state-of-charge in real time to master control borad in charging process, AC/DC power modules output voltage and electric current are adjusted after being analyzed and processed by master control borad in real time, to reach optimal charge efficiency, and charging status information is intuitively shown on configuration software touch-screen and charge power can be adjusted with real-time control, PDA remote real time monitorings information about power and charged state can also be passed through;The present invention has the advantages that charging is rapid, stability is good and easy to operate.

Description

A kind of electric tractor intelligent charger
Technical field
The present invention relates to electric tractor charging field, and in particular to a kind of electric tractor intelligent charger.
Background technology
Presently, agricultural main dynamic power machine in China's is still tractor, and its recoverable amount remains what is risen year by year Situation, but the problems such as oil consumption existing for conventional fuel oil tractor is high, emission performance is poor, speed changer structure complexity, its caused energy The pressure that source consumes and problem of environmental pollution has been further exacerbated by China's energy-conserving and environment-protective and the strategy of sustainable development is faced.Facility The special agriculture production environments such as agricultural, the ecological agriculture, garden agricultural are to zero-emission, pollution-free, low noise green power agricultural machinery The demand of tool is more and more urgent, and high efficiency smart environmental protection farm power machinery has turned into the main direction of global innovation work of agricultural machinery technology.
As a kind of novel green agricultural machinery, it has zero-emission, low noise, high efficiency and is easy to grasp electric tractor The features such as making, it is to solve the optimal alternative solution that traditional tractor faces various problems.In order to promote electric tractor technology Market-oriented, the practical and industrialization of product, such as how based on electric tractor specific work environments, according to electrokinetic cell The charge-discharge characteristic of energy Analysis of Parameter Matching and battery, designing the intelligent charging machine based on optimal charge management strategy becomes mesh Preceding urgent problem to be solved.
The content of the invention
In order to solve the above problems, the invention discloses a kind of electric tractor intelligent charger;Purpose is to provide A kind of high power DC charging device for electric tractor quick charge, the device can carry out quick to electric tractor Charging, charging status information is intuitively shown on configuration software touch-screen and charge power can be adjusted with real-time control, also may be used To pass through PDA (Personal Digital Assistant, personal palm PC) remote real time monitoring information about power and charging State, have the advantages that charging is rapid, stability is good and easy to operate.
A kind of electric tractor intelligent charger, including master control borad, touch-screen, PDA, Switching Power Supply, AC/DC power supply moulds Block and DC charging rifle.
The master control borad is made up of MCU, Wi-Fi module, CAN communication module, 485 communication modules and power module;Institute State MCU to be made up of STM32 minimum systems, for data analysis and process;The MCU passes through Wi-Fi module, CAN communication module And 485 communication module and external communication;The Wi-Fi module is used to communicate wirelessly with PDA;The CAN communication module is used Enter in AC/DC power modules and BMS (Battery Management System, electric automobile power battery management system) Row communication;485 communication module is communicated by signal wire and configuration software host computer;Based on the power module is used for Control plate power supply;The MCU, Wi-Fi module, CAN communication module, 485 communication modules and power module are welded on one piece of PCB On circuit board.
The touch-screen is MCGS touch-screens, is inputted in touch-screen and passes through charge information monitoring and control that configuration software is worked out Application software processed;Charge information is monitored and control application software is communicated with MCU by 485 communication modules, for the shape that charges The display directly perceived of state and power state information and charging start-up and shut-down control.
The PDA, it is communicated wirelessly by Wi-Fi and MCU, is filled for remote monitoring electric tractor electrokinetic cell Electricity condition information and charging start-up and shut-down control.
The Switching Power Supply, for the 24V DC voltages for being converted into meeting equipment requirement by mains supply, be touch-screen and Master control borad is powered.
The AC/DC power modules, mains electricity is converted into direct current, the AC/DC power modules are total by CAN Line is communicated with MCU, is adjusted AC/DC power module output currents and voltage according to power module communications protocol and is detected its fortune Row state.
The DC charging rifle is mainly made up of direct current supply line and connection, and the direct current supply line is used to drag to be electronic Machine drawing battery bag is charged, and the connection is connected with BMS discharge and recharge CAN communication interfaces, the BMS discharge and recharges CAN communication Interface is communicated by CAN and MCU, sends cell voltage electric current, charged shape in real time to master control borad in charging process The parameters such as state, AC/DC power modules output voltage and electric current are adjusted after being analyzed and processed by MCU in real time, to reach optimal charge effect Rate.
Advantages of the present invention:
1st, user need not treat in situ, can pass through PDA remote monitoring electric tractor power battery charging status informations And charging start-up and shut-down control, it is convenient and swift;
2nd, master control borad, AC/DC power modules and BMS are articulated to CAN as communication node by signal wire One CAN communication network of upper composition, simplifies communication line, drastically increases flexibility and scalability, and reliability is high.
3rd, in charging process by master control borad MCU (single-chip microcomputer) according to parameters such as real cell voltage electric current, state-of-charges, it is real When adjust AC/DC power modules output voltage and electric current, can reach optimal charge efficiency.
Brief description of the drawings
Fig. 1 is a kind of electric tractor intelligent charger schematic diagram;
Fig. 2 is a kind of electric tractor intelligent charger CAN network topology structure;
In Fig. 2:1st, CAN communication node, 2, signal wire, 3, terminal resistance, 4, CAN;
Embodiment
Embodiment 1:Reference picture 1.A kind of electric tractor intelligent charger, including master control borad, touch-screen, PDA, switch Power supply, AC/DC power modules, and DC charging rifle.
The master control borad is made up of MCU, Wi-Fi module, CAN communication module, 485 communication modules and power module;Institute MCU is stated to be made up of STM32F407VET6 chips and its minimum system, the STM32F407VET6 chips be used for data analysis and Processing, and pass through Wi-Fi module, CAN communication module and 485 communication modules and external communication;The Wi-Fi module be by The radio receiving transmitting module of ESP8266 chips and its basic peripheral circuit composition, for being communicated wirelessly with PDA;
The CAN communication module carries CAN controller and CAN transceiver TJA1050 by STM32F407VET6 chips Chip form, for AC/DC power modules and BMS (Battery Management System, electric automobile power battery Management system) communicated;
485 communication module is made up of RS485 communication chips MAX485CPA and peripheral circuit, its by signal wire with Configuration software host computer is communicated;
The power module is made up of step-down switching regulator LM2595_5 and low pressure difference linear voltage regulator M3940_3.3, The LM2595_5 by Switching Power Supply output 24V voltage conversions be 5V voltages, for for Wi-Fi module, CAN communication module and 485 communication modules are powered, and 5V DC voltages are converted into 3.3V by the M3940_3.3, for being powered for main control MCU;
The MCU, Wi-Fi module, CAN communication module, 485 communication modules and power module are welded on one piece of PCB On circuit board.
The touch-screen is MCGS touch-screens, is inputted in touch-screen and passes through charge information monitoring and control that configuration software is worked out Application software (according to prior art program) processed, it is communicated by 485 communication modules with MCU, for charged state and electricity The display directly perceived of source status information and charging start-up and shut-down control.
The PDA, it is communicated wirelessly by Wi-Fi and MCU, is filled for remote monitoring electric tractor electrokinetic cell Electricity condition information and charging start-up and shut-down control.
The Switching Power Supply selects bright latitude S-50-24, for the 24V direct currents for being converted into meeting equipment requirement by mains supply Voltage, it is that touch-screen and master control borad are powered.
The AC/DC power modules select Ying Fei sources REG75035 DC power suppliers, by civil power be converted into voltage 150~ 750V, electric current 0~33A continuously adjustabes direct current, the AC/DC power modules are communicated by CAN 4 and MCU, root AC/DC power module output currents and voltage are adjusted according to power module communications protocol and detect its running status.
The DC charging rifle is from thinking much up to NV3-DSD-EV200P, and it is mainly by direct current supply line and connection group Into the direct current supply line is used to be charged for electric tractor battery bag, the connection and BMS discharge and recharge CAN communications Interface is connected, and the BMS discharge and recharges CAN communication interface is communicated by CAN 4 and MCU, to master control in charging process Plate sends the parameters such as cell voltage electric current, state-of-charge in real time, and adjustment AC/DC power modules are defeated in real time after being analyzed and processed by MCU Go out voltage and current, to reach optimal charge efficiency.
Embodiment 2:Reference picture 2.The CAN communication network is by CAN communications node 1, signal wire 2, terminal resistance 3 and CAN Bus 4 forms;
The CAN communications node 1 is by master control borad CAN communication module, AC/DC power module CAN control interfaces and BMS charge and discharges Electric CAN communication interface composition, is articulated in CAN 4 by signal wire 2;
The CAN 4 employs multi-master competition formula bus structures, has the operation of more main websites and disperses the serial total of arbitration The characteristics of line and broadcast communication, its arbitrary node can at any time on one's own initiative to other nodes on network send information without Divide primary and secondary, free communication can be realized between each node, the transmission medium of CAN 4 uses twisted-pair shielded wire;
The master control borad and BMS as the distalmost end of CAN 4, the terminal resistance 3 be connected on 4 farthest both ends of CAN with Improve CAN antijamming capability;
The AC/DC power modules are articulated among CAN, can be with to improve electric tractor charger charge power Multiple AC/DC power modules are used in parallel.

Claims (3)

1. a kind of electric tractor intelligent charger, it is characterised in that including master control borad, touch-screen, palm PC PDA, switch Power supply, AC/DC power modules and DC charging rifle;
The master control borad includes MCU, Wi-Fi module, CAN communication module, 485 communication modules and AC/DC power modules composition; The Wi-Fi module is used to communicate wirelessly with palm PC PDA;The MCU is used for remote monitoring electric tractor power Battery charge state information and charging start-up and shut-down control;The CAN communication module by CAN and AC/DC power modules and Electric automobile power battery management system BMS is communicated;485 communication module passes through signal wire and configuration software host computer Communicated, display directly perceived and charging start-up and shut-down control for charged state and power state information;The AC/DC power supplys mould Block is used to power for master control borad;
The touch-screen is MCGS touch-screens, and the charge information monitoring worked out by configuration software is inputted in touch-screen and control should Use software;Charge information is monitored and control application software is communicated with MCU by 485 communication modules, for charged state and The display directly perceived of power state information and charging start-up and shut-down control;
The palm PC PDA is communicated wirelessly by Wi-Fi and MCU, for remote monitoring electric tractor electrokinetic cell Charging status information and charging start-up and shut-down control;
The Switching Power Supply is that touch-screen and master control borad are powered;
The AC/DC power modules, mains electricity is converted into direct current;The AC/DC power modules by CAN with MCU is communicated, and is adjusted AC/DC power module output currents and voltage according to power module communications protocol and is detected it and runs shape State;
The DC charging rifle includes direct current supply line and connection;It is electric tractor battery bag that the direct current supply line, which is used for, Charged;The connection is connected with electric automobile power battery management system BMS discharge and recharge CAN communication interfaces;The electricity Electrical automobile power battery management system BMS discharge and recharge CAN communication interfaces are communicated by CAN and MCU, for charging During send cell voltage electric current and state-of-charge parameter in real time to master control borad, after being analyzed and processed by MCU in real time adjustment AC/DC Power module output voltage and electric current.
A kind of 2. electric tractor intelligent charger as claimed in claim 1, it is characterised in that the MCU by STM32 most Mini system forms, for data analysis and process;The MCU by Wi-Fi module, CAN communication module and 485 communication modules with External communication.
A kind of 3. electric tractor intelligent charger as claimed in claim 1, it is characterised in that MCU, Wi-Fi mould Block, CAN communication module, 485 communication modules and AC/DC power modules are welded in one piece of PCB.
CN201711151299.0A 2017-11-18 2017-11-18 A kind of electric tractor intelligent charger Pending CN107757415A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111452665A (en) * 2020-05-25 2020-07-28 南京能瑞电力科技有限公司 Intelligent charging and battery replacing cabinet for electric bicycle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102117943A (en) * 2011-01-19 2011-07-06 启明信息技术股份有限公司 Intelligent charging method and device for battery management system of electric vehicle
CN102208824A (en) * 2011-06-03 2011-10-05 中国科学院电工研究所 Sequential charging control system for electric vehicles
CN103208839A (en) * 2013-03-29 2013-07-17 天津大学 Lithium ion battery pack charger based on controller area network (CAN) bus and charging control method
CN104810894A (en) * 2015-05-08 2015-07-29 山东鲁能智能技术有限公司 Split type direct-current charging piles for electric automobiles, system and method
CN106501642A (en) * 2016-10-21 2017-03-15 天津市普迅电力信息技术有限公司 A kind of portable testing equipment of direct-current charging post
CN208101722U (en) * 2017-11-18 2018-11-16 山东农业大学 A kind of electric tractor intelligent charger

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102117943A (en) * 2011-01-19 2011-07-06 启明信息技术股份有限公司 Intelligent charging method and device for battery management system of electric vehicle
CN102208824A (en) * 2011-06-03 2011-10-05 中国科学院电工研究所 Sequential charging control system for electric vehicles
CN103208839A (en) * 2013-03-29 2013-07-17 天津大学 Lithium ion battery pack charger based on controller area network (CAN) bus and charging control method
CN104810894A (en) * 2015-05-08 2015-07-29 山东鲁能智能技术有限公司 Split type direct-current charging piles for electric automobiles, system and method
CN106501642A (en) * 2016-10-21 2017-03-15 天津市普迅电力信息技术有限公司 A kind of portable testing equipment of direct-current charging post
CN208101722U (en) * 2017-11-18 2018-11-16 山东农业大学 A kind of electric tractor intelligent charger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111452665A (en) * 2020-05-25 2020-07-28 南京能瑞电力科技有限公司 Intelligent charging and battery replacing cabinet for electric bicycle

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Application publication date: 20180306