CN101895132A - Battery management system of electric motorcycle - Google Patents

Battery management system of electric motorcycle Download PDF

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Publication number
CN101895132A
CN101895132A CN2009101075254A CN200910107525A CN101895132A CN 101895132 A CN101895132 A CN 101895132A CN 2009101075254 A CN2009101075254 A CN 2009101075254A CN 200910107525 A CN200910107525 A CN 200910107525A CN 101895132 A CN101895132 A CN 101895132A
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China
Prior art keywords
battery
control module
master control
management system
motorcycle
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Granted
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CN2009101075254A
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Chinese (zh)
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CN101895132B (en
Inventor
董超祺
李智
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CHANGDE YILI ENERGY Co Ltd
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CHANGDE YILI ENERGY Co Ltd
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—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
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Abstract

The invention relates to a management device of a battery pack and provides a battery management system of an electric motorcycle. The battery management system of the electric motorcycle comprises a plurality of battery jars used for loading batteries, a main control module and a display module, wherein each battery jar comprises an interface which is matched with the loaded battery and is used for providing a power supply of the battery for the electric motorcycle; the main control module is connected with communication interfaces and control interfaces in the interfaces of the battery jars and used for reading information of the batteries through the communication interfaces after starting the motorcycle, then selecting one battery as the power supply output according to the information of the batteries and placing other batteries in the state of having not voltage output and being incapable of being charged; and the display module is connected with the main control module and used for displaying the battery information obtained by the main control module. The battery management system of the electric motorcycle can realize the management of a plurality of batteries of the motorcycle and avoid the potential safety hazard produced by simultaneous voltage output of the batteries.

Description

A kind of battery management system of electric motorcycle
Technical field
The present invention relates to the management devices of battery pack, relate in particular to a kind of battery management system of electric motorcycle.
Background technology
Battery in the existing battery-operated motor cycle all only has one group of main battery, so battery-operated motor cycle is very simple to the management system of battery.General, there is the voltmeter of the voltage of a pilot cell group at the headstock dial plate place of battery-operated motor cycle; And a speedometer, the voltage of the generating winding of this speedometer sampling on wheel is indicated the speed of service of motorcycle.When the main battery of group more than battery-operated motor cycle has, existing battery management system of electric motorcycle just can not effectively be managed battery.Such as, battery is also powered to motorcycle motor in charging, can have potential safety hazard like this.
Summary of the invention
The object of the present invention is to provide a kind of battery management system of electric motorcycle, be intended to solve under the prior art problem that the battery of battery-operated motor cycle is not effectively managed.
The present invention realizes like this, a kind of battery management system of electric motorcycle, described battery management system of electric motorcycle comprises: contain the battery case of a plurality of batteries that are used to pack into, described battery case has and packs the interface of battery coupling and battery supply offered battery-operated motor cycle into;
The master control module that is connected with communication interface in the interface of described battery case and control interface, be used for behind motorcycle initiating, reading the information of battery by communication interface, export as power supply according to one of them battery of Information Selection of battery then and other battery is placed no-voltage output and can not be recharged state; And
With the display module that the master control module is connected, be used to the battery information that shows that the master control module gets access to.
The invention has the beneficial effects as follows that the battery that the battery management system of electric motorcycle management is packed into makes and has only a cell output voltage in the battery of packing into behind motorcycle initiating, and place no-voltage output can not be recharged state on other battery.Make a plurality of batteries behind motorcycle initiating, have only a cell output voltage like this, and the battery of having avoided having output voltage potential safety hazard that the battery of no-output voltage is charged and causes.
Description of drawings
Fig. 1 is the circuit structure diagram of a kind of battery management system of electric motorcycle of providing of the embodiment of the invention;
Fig. 2 is the circuit structure diagram of master control module in a kind of battery management system of electric motorcycle of providing of the embodiment of the invention;
Fig. 3 is the concrete structure figure of charging identification circuit in a kind of master control module of providing of the embodiment of the invention;
Fig. 4 is the circuit structure diagram of lead-acid battery administration module in a kind of battery management system of electric motorcycle of providing of the embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present invention, battery management system of electric motorcycle obtains the battery information of packing into by the master control module after startup, selects one of them cell output voltage according to battery information then and other battery is placed no-voltage output and can not be recharged state.Thereby make a plurality of battery output voltages in an orderly manner of packing into, and avoided charging and the potential safety hazard of generation mutually between battery.
Fig. 1 shows the circuit structure of a kind of battery management system of electric motorcycle that the embodiment of the invention provides.The battery case 6 of battery management system of electric motorcycle in embodiments of the present invention 4 batteries of can packing into.Battery case 6 is provided with the interface with the battery coupling of packing into; The control interface of battery case 6 and communication interface are connected to master control module 1, and master control module 1 is obtained the battery information of packing into by the communication interface of battery case 6, and control the operating state of battery by the control interface of battery case 6; Master control module 1 also connects display module 4, so that information such as battery are shown to the user.
After battery-operated motor cycle starts, master control module 1 is obtained battery information by the communication interface of battery case 6, choose one of them cell output voltage according to the battery information that obtains then, the cell output voltage of choosing by the control interface control of battery case is also controlled other battery no-voltage output and battery is placed full the state that can not charge.Thereby realize the orderly output voltage of battery that control is packed into, and avoided between battery charging mutually and the potential safety hazard that causes.
The selection that those skilled in the art will appreciate that 1 pair of battery of master control module can be with any means that pre-sets the battery of packing into to be selected; As selecting the battery of the minimum battery of Current Temperatures when the motorcycle initiating according to the temperature information of battery as output voltage, after this battery consumption is intact, select the battery of the minimum battery of another temperature again, the temperature of battery in the convenient like this control battery case as output voltage; Also can select current voltage minimum and consume the battery finish battery, conveniently one by one battery consumption be finished according to the information of voltage of battery as output voltage.The master control module is also connected to display module 4, and showing the information such as voltage, temperature and type of battery, display module 4 can show a kind of information or multiple information in the information such as voltage, temperature and type of battery.The user can understand battery information by display module 4, can use battery more flexibly healthily.
Master control module 1 also is connected to the hall signal line 2 of motor; Described master control module 1 calculates the number of turns that bike wheel rotates according to the potential pulse number on the hall signal line 2, thereby according to the number of turns of wheel and the radius of the wheel of input or the speed of service that girth calculates motorcycle and or the distance and export by display module 4 of travelling in advance.The moving circle of 6 general phase brushless electric machine revolutions, the Hall interface can be exported 10 pulses.Therefore, the pulse duration on 1 pair of hall signal line 2 of master control module measures and pulse is counted, and just can obtain the speed of service and walking mileage information by calculating again.
Master control module 1 also connects the switching signal end of electric machine controller, and electric machine controller is according to the signal controlling motorcycle motor of master control module output and being connected or disconnection of power supply.Specific as follows described.
Master control module 1 also connects battery recharger port 8.Master control module 1 sets in advance the battery that decision is charged earlier according to the battery information or the user that read, Connects Power the pond charging inlet during to battery charge at charger, and output needs the cell types of charging to give charger.Charger is exported the voltage of coupling to give corresponding battery charge according to cell types by battery recharger port 8.
Battery management system of electric motorcycle also comprises mode selection switch 5, is used for the control model of battery is switched between master control module controls and hand control switch control.Like this can be when the microprocessor software operation irregularity of primary module, the emergent hand control switch that switches to is controlled, and uses hand control switch to select suitable battery to power to motorcycle.Hand control switch mode prioritization level is higher than master control module controls automatic mode, switch to the hand control switch pattern after, battery-operated motor cycle is just according to the hand control switch mode operation.
The battery case of battery management system of electric motorcycle can be the combination of battery case with the battery case of dress lead-acid battery of dress lithium battery.Lithium battery is built-in with managing electric quantity circuit and safety protective circuit, and the master control module can directly read lithium battery information and carry out relevant control, just can realize management to battery so the battery case of dress lithium battery only need dispose with the interface of lithium battery coupling.Battery management system of electric motorcycle uses lead-acid battery can save cost; but lead-acid battery is protection and managing electric quantity circuit not; therefore need in battery case, increase the lead-acid battery administration module; make it have functions such as the output interface the same with lithium battery and managing electric quantity, control, master control module like this 1 could be carried out unified management to battery.The physical circuit of lead-acid battery administration module can be as described below.
When battery management system of electric motorcycle includes the battery case of dress lead-acid battery, can also comprise lead-acid battery charging module 19, be used for when out-put supply be that lithium battery group and lithium battery pool-size are during greater than predetermined value, these lead-acid battery charging module 19 work of master control module controls, after the output voltage of lithium battery isolated buck and current limliting, lead-acid battery is charged.
When a selected Battery pack group is the lithium battery group, and the capacity of this battery pack is during greater than predetermined value (being made as 10% usually), and the master control module starts 19 pairs of lead-acid battery groups of lead-acid battery charging module and charges.The power input IN+ and the IN-of lead-acid battery charging module 19 obtain power supply from motorcycle power line P+ and P-; Output charging voltage end " OUT+ " and " OUT-" of lead-acid battery charging module 19 are connected to lead-acid battery input interface 11.Lead-acid battery charging module 19 has two control end C_EN and C_DIS.When control end C_EN effectively reaches control end C_DIS when invalid, lead-acid battery charging module 19 starts.The battery of selecting for use when the master control module is a lithium battery, and this lithium battery capacity was greater than 10% o'clock, master control module 1 is provided with control end C_EN for effective, and this moment, the lead-acid battery group was not selected, Enable Pin EN4 is invalid, the control end C_EN that meets lead-acid battery charging module 19 effectively reaches the invalid entry condition of control end C_DIS, the circuit working of lead-acid battery charging module.If the voltage of battery-operated motor cycle power line P+ and P-is greater than the voltage of lead-acid battery, lead-acid battery charging module 19 is operated in decompression mode; If the voltage of battery-operated motor cycle power line P+ and P-is less than the voltage of lead-acid battery, lead-acid battery charging module 19 is operated in boost mode, is a definite value thereby make the charging output voltage of lead-acid battery charging module 19 and electric current.As: for the lead-acid battery of 48V, generally be output as 60V/1A.Lead-acid battery charging module 19 work that all can be under an embargo when the invalid or control end C_DIS of the control end C_EN of lead-acid battery charging module 19 is effective.Also promptly the lithium battery group of selected output voltage use to capacity less than 10% o'clock, it is invalid that master control module 1 is provided with the C_EN signal, thereby makes lead-acid battery charging module 19 work that is under an embargo; And when the lead-acid battery group was selected, the EN4 signal was effective, thereby made lead-acid battery charging module 19 work that is under an embargo.When lead-acid battery charging module 19 was under an embargo work, its input and output electric quantity consumption were very little, can be not influential to the lead-acid battery of the motorcycle power line P+ of its input and P-and output thereof.
It will be appreciated by those skilled in the art that, the physical circuit of lead-acid battery charging module 19 realizes it can being to carry out the lifting potential circuit earlier to select after carrying out voltage isolation, the specific implementation that the lifting potential circuit is selected can be to pass through electric resistance partial pressure, open reduction voltage circuit and disconnect booster circuit during greater than the voltage of lead-acid battery when cell output voltage, the step-down amplitude of reduction voltage circuit also can be to carry out proportional control by divider resistance; Open boost mode and disconnect reduction voltage circuit when cell output voltage enters during less than the voltage of lead-acid battery and greater than predetermined value, the amplitude of boosting of booster circuit also can be to be controlled by divider resistance; Cell output voltage is boosted or step-down after enter current-limiting circuit again, export to lead-acid battery charging at last.Certainly it can be other any kind that concrete circuit is realized, as long as can realize the function of lead-acid battery charging module 19.
Key-press module 3 is set can be provided with 3 buttons: setting/switching, rise, downward modulation are used to be provided with the bike wheel girth and switch the LCD content displayed.Setting/switching bond distance can enter or withdraw from the state of setting by 5 seconds; Short in settings/switch key, LCD display 4 content displayed are switched between remaining mileage, speed, capable mileage, battery electric quantity etc.After entering the state of setting, setting/switching bond distance can withdraw from the state of setting by 5 seconds, short can be provided with two kinds in girth setting and unit and be provided with between state and switch by key is set.Under unit is provided with state, raises with the downward modulation button and can switch the unit that LCD display 4 shows; Under girth was provided with state, raising with the downward modulation button to increase, to reduce wheel circumference.After wheel circumference was provided with accurately, master control module 1 just can be learnt the number of turns that motor rotates by motor hall signal interface 2, again according to the wheel circumference that has been provided with, just can calculate the speed and the mileage of battery-operated motor cycle walking.When the capable fare register of LCD display 4 demonstrations, the long down key of pressing can make things convenient for the user to measure the mileage in next highway section with going the mileage zero clearing; When LCD display 4 show be battery electric quantity the time, by raising or down key, can show the information about power of a group or next Battery pack.
Mode selection switch 5 is used to select the mode of operation of management system.Be provided with 5 kinds of mode of operations in embodiments of the present invention: automatically, manually select battery 1, manually select battery 2, manually select battery 3, manually select battery 4.When using automatic mode, master control module (1) can select a Battery pack as output according to the information of current every Battery pack automatically, and current battery exhausts because of capacity or waits in the time of can not using unusually, automatically switches to next Battery pack.When selecting manual mode, the master control module can be with the battery of appointment as output, and selecteed battery electric quantity exhausts etc. when unavailable, can not automatically switch to next Battery pack.Manual mode was mainly used in when the scm software of master control module lost efficacy, and still can make motorcycle work by the mode of artificial selection.The model selection part realizes that by hardware circuit manual mode has precedence over automatic mode.
All cell voltage lead-out terminals in the battery case 6 be connected in parallel the power input P+ and the P-of electric machine controller 7.The communication power supply line of the battery connectivity port of battery case 6 and ground wire are connected to master control module 1 output+5V and GND port respectively; The communication terminal " D1 " that each battery connects, " D2 ", " D3 ", " D4 " and Enable Pin " EN1 ", " EN2 ", " EN3 ", " EN4 " respectively with the corresponding communication ends and the Enable Pin of master control module.When master control module 1 initially powered on, it was invalid all Enable Pins can be made as, and all batteries all cannot discharge and recharge, and master control module 1 output+5V and GND power supply make inside battery communication part line work to each battery connectivity port simultaneously.Master control module then 1 by communication port regularly with each battery case in the battery communication, read the information of battery, and information handled, can carry out twice communication general each second with each battery.Master control module 1 can be selected one of them available battery for use according to certain precedence algorithm.Master control module 1 is made as the battery of choosing effectively by the enable port.The cell output voltage that is enabled is used for the motorcycle power supply to electric machine controller 7.When the battery in using was removed, master control module 1 and this battery case position can not communications, and master control module 1 can be discerned battery and be removed; In like manner, when battery case had new battery to insert, master control module 1 also can detect battery immediately and insert.
Fig. 2 shows the circuit structure of the master control module of a kind of battery-operated motor cycle that the embodiment of the invention provides.Those skilled in the art will appreciate that this circuit structure is a kind of enforcement circuit of master control module, the master control module can also be used other equivalent circuit to substitute and realize.The function and the workflow of each module in the following simple declaration circuit.
Module 18 is microprocessor (Micro Process Unit, be called for short MCU) 1, be mainly used in information management: with battery communication, detection speed signal, charging ID resistance is set, functions such as wheel circumference and demonstration are set, and with module 12 be microprocessor 2 communications, transmit the information of battery.Module 14 is that data selector 2 is connected the connection D1-D4 of battery pack 1 to battery pack 4 by microprocessor 1 timesharing, with each Battery pack communication.
The microprocessor 2 main batteries of realizing switch execution: according to the information that microprocessor 1 sends, whether the control enable signal is effective, realizes that the switching of battery is used.Multiplexer (multiplexer) 13, BCD decoder 15 and NAND gate integrated circuit 16 are formed reliable, fast battery switching circuit.This circuit guarantees arbitrary moment from hardware, has only a Battery pack selected, avoids the battery of different voltages to export simultaneously, the situation of charging mutually between battery.The output port of BCD decoder 15 " Q1 ", " Q2 ", " Q4 " and " Q8 " are connected to input port " B1 ", " B2 ", " B3 " and " B4 " of NAND gate integrated circuit.The commutation circuit manual mode has precedence over automatic mode: when mode selection switch 5 is allocated to automatic transmission, and " Q0 " pin output low level, 15 outputs of BCD decoder are high level, and at this moment, the output of 15 pairs of NAND gate integrated circuits 16 of BCD decoder does not have influence." Q0 " is low level enable data selector 13, and the data selector 13 by microprocessor 2 controls is depended in the output of NAND gate integrated circuit 16.When being low level as " X1 " of data selector 13, be connected with the output of NAND gate integrated circuit 16 to enable output " EN1 " effective.When mode selection switch 5 was allocated to " manual 1 ", " Q0 " of BCD decoder 15, " Q2 ", " Q4 " " Q8 " exported high level, " Q1 " pin output low level." Q0 " exports high level, 13 work of forbidden data selector, the output port of data selector 13 " X1 " to " X4 " is all exported high level, the output of 13 pairs of NAND gate integrated circuits 16 of data selector does not have influence, and the output state of BCD decoder 15 is depended in the output of NAND gate integrated circuit 16.
Fig. 3 shows the concrete structure of the charging identification circuit in a kind of master control module that the embodiment of the invention provides.
Charging port 8 is the charger access interface, includes charging anodal " CH+ ", charging negative pole " CH-" and recognition terminal ID.After charger is connected to charging inlet, recognition terminal ID power on the back relatively " CH-" end be the resistance of+5V voltage serial connection 1.1K ohm, the CHG signal is subjected to the control of charger input ID end, when charger input ID end during for high level, CHG is a low level; When the input ID of charger end was low level, CHG was a high level.The CHG signal of master control module 1 by detecting can learn that whether battery is in charging.The ID signal of charger is also controlled the switching signal of electric machine controller 7, when charger ID end has voltage, the output ON/OFF of control master control module 1 and the P+ end of electric machine controller disconnect, the ON/OFF signal input part of electric machine controller 7 becomes low-voltage, electric machine controller 7 is in halted state, cannot drive a vehicle; When charger and charging port disconnect when being connected, ID hold no-voltage, " ON/OFF " and " P+ " connection of control master control module 1, and electric machine controller 7 " ON/OFF " is " P+ " high voltage, electric machine controller 7 can operate as normal.When master control module 1 has detected the charger connection, can on LCD display 4, show the sign of charging, expression is charged.Master control module 1 will be to wherein Battery pack charging according to the state decision of battery.The ID resistance of supposing category-A type battery correspondence is the R_ID1 among Fig. 3, and the ID resistance of category-B type battery correspondence is R_ID2, and the ID resistance of C type cell correspondence is R_ID3; As will be to the category-A type batteries charging in the battery case, master control module 1 can be made as high level with " IDCON1 " among Fig. 3 earlier, makes " Q1 " conducting; " IDCON2 " reaches " IDCON3 " and is made as low level, and " Q2 ", " Q3 " are ended, and makes R_ID1 resistance receive the CH-and the ID end of charging port, detects for charger; Then, Enable Pin EN1 being made as high level chooses this battery that this battery can be charged.When charger does not detect ID resistance or ID resistance not in scope, do not export charging voltage, when R_ID1 was selected, charger detected R_ID1, and the charging voltage that can export immediately with category-A type battery coupling charges the battery.In like manner, to the battery charge of category-B type or C type, it is R_ID2 or R_ID3 that master control module 1 can be provided with ID resistance, and the Enable Pin with the relevant position is made as high level again, to the battery charge of respective battery groove.
When master control module 1 is carried out communication with control with the lead-acid battery group, realize by lead-acid battery administration module 10.Fig. 4 shows the circuit structure of lead-acid battery administration module in a kind of battery management system of electric motorcycle that the embodiment of the invention provides.Here with the B4 position of battery case battery case as lead-acid battery.
The positive pole of lead-acid battery is connected to the positive pole of the lead-acid battery input interface 11 on the battery case 6 earlier, is connected to the anode P4+ of battery case B4 more respectively; The negative pole of lead-acid battery is connected to the negative pole of lead-acid battery group input interface 11 earlier, is connected to current sampling resistor " RS " again, then is connected to power field effect pipe 10_2, is connected to the negative terminal P4-of battery case B4 at last.Current sampling resistor " RS " is gathered the charging and discharging currents of lead-acid battery group, divider resistance " R3 " is gathered the voltage of lead-acid battery group with " R4 ", managing electric quantity circuit module 10_5 accumulates the charging and discharging currents of gathering, in conjunction with the voltage of battery pack, can obtain the dump energy information of lead-acid battery.Communication port D4 and digital buffer circuit module 10_6 and the managing electric quantity circuit module 10_5 of master control module 1 by battery case B4 carries out communication, obtains the information such as electric weight of lead-acid battery.When master control module 1 was not worked, managing electric quantity circuit module 10_5 was in low-power consumption mode, and low-power consumption voltage stabilizing circuit 10_1 gives managing electric quantity circuit module 10_5 power supply, did not lose to keep electric quantity data.When master control module 1 and lead-acid battery carry out communication or select lead-acid battery as output for use, the power consumption of managing electric quantity circuit module 10_5 increases, the energy deficiency that low-power consumption voltage stabilizing circuit 10_1 provides, managing electric quantity circuit module 10_5 changes by voltage stabilizing circuit 10_3 and powers.Voltage stabilizing circuit 10_3 is connected to the anodal power supply that obtains of lead-acid battery by " OP1 " circuit and " D1 " element or " OP2 " circuit with " D2 " element.When master control module 1 was worked or chosen lead-acid battery as output, voltage stabilizing circuit 10_3 all can get electric work.Voltage stabilizing circuit 10_3 gives VCC1 end and the power supply of VCC2 end of digital buffer circuit module 10_6 simultaneously.Numeral buffer circuit module 10_6 realizes the conversion of communication ground level when not conducting of field effect pipe 10_2, makes communication normally to carry out.When master control module 1 is arranged to high voltage to the enable port EN4 of battery case B4, " OP1 " circuit is connected, lead-acid battery is anodal by resistance R 2, diode D5 and D6 " driving voltage is provided for field effect transistor 10_2, field effect transistor 10_2 conducting, lead-acid battery can discharge and recharge.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. battery management system of electric motorcycle, it is characterized in that, described battery management system of electric motorcycle comprises: contain the battery case of a plurality of batteries that are used to pack into, described battery case has and packs the interface of battery coupling and battery supply offered battery-operated motor cycle into;
The master control module that is connected with communication interface in the interface of described battery case and control interface, be used for behind motorcycle initiating, reading battery information by communication interface, export as power supply according to one of them battery of Information Selection of battery then and other battery is placed no-voltage output and can not be recharged state; And
With the display module that the master control module is connected, be used to the battery information that shows that the master control module gets access to.
2. battery management system of electric motorcycle as claimed in claim 1 is characterized in that, described master control module also is connected to the hall signal line of motor; Described master control module calculates the number of turns that bike wheel rotates according to the potential pulse number on the hall signal line, again according to the radius of the number of turns of wheel and the wheel that presets or the speed of service that girth calculates motorcycle and or the distance and exported by display module of travelling.
3. battery management system of electric motorcycle as claimed in claim 1, it is characterized in that, described battery management system of electric motorcycle also comprises: the electric machine controller that the switching signal port is connected with the master control module, described electric machine controller also connects out-put supply and motorcycle motor, by the commands for controlling electric machine controller running motorcycle motor of master control module.
4. battery management system of electric motorcycle as claimed in claim 1, it is characterized in that, described master control module also connects battery recharger port, described battery recharger port is used for the cell types that needs selected through described master control module and that enable charge is exported to the charger that inserts battery recharger port, and charger is given corresponding battery charge according to described cell types by the battery recharger port output voltage again.
5. battery management system of electric motorcycle as claimed in claim 1, it is characterized in that, described battery management system of electric motorcycle also includes mode selection switch, is used for the control model of battery is switched between master control module controls and hand control switch control.
6. battery management system of electric motorcycle as claimed in claim 1 is characterized in that, described battery case comprise the battery case of adorning lithium battery and or the battery case of dress lead-acid battery; The battery case of described dress lead-acid battery is furnished with the lead-acid battery administration module, is used to cooperate the master control module that lead-acid battery is managed.
7. battery management system of electric motorcycle as claimed in claim 6, it is characterized in that, the battery case of described dress lead-acid battery also is furnished with the lead-acid battery charging module, be used for when out-put supply be that the electric weight of lithium battery and lithium battery is during greater than predetermined value, enable the back by the master control module output voltage is isolated buck and current limliting, so that lead-acid battery is charged.
8. battery management system of electric motorcycle as claimed in claim 1 is characterized in that, described master control module also connects key-press module is set, and is used to be provided with and or switches the shown content of described display module.
CN2009101075254A 2009-05-20 2009-05-20 Battery management system of electric motorcycle Expired - Fee Related CN101895132B (en)

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CN102616144A (en) * 2012-04-25 2012-08-01 电子科技大学 Method and device for controlling safe operation of electric automobile
CN103367819A (en) * 2012-03-29 2013-10-23 株式会社日立制作所 Battery system
CN103825323A (en) * 2014-02-11 2014-05-28 江苏博强新能源科技有限公司 Charging self-adaptive current-limiting system
WO2016062121A1 (en) * 2014-10-24 2016-04-28 北京凌云智能科技有限公司 Battery switching method, battery management system and power supply device
CN105730267A (en) * 2016-01-27 2016-07-06 安徽江淮汽车股份有限公司 Control method and system for battery pack of electric automobile
CN106921188A (en) * 2015-12-24 2017-07-04 杭州骑客智能科技有限公司 Electrodynamic balance car lithium battery explosion protection system
CN109334510A (en) * 2018-11-23 2019-02-15 北斗航天汽车（北京）有限公司 A kind of motor-driven loading vehicle battery pack parameter display system and display methods
CN113370796A (en) * 2021-05-18 2021-09-10 深圳万华数据科技有限公司 Wireless scooter voltage regulation method, remote controller, scooter and storage medium
CN115273470A (en) * 2022-07-26 2022-11-01 重庆铭凯科技发展有限公司 Intelligent instrument system of electric motorcycle and control method

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103367819A (en) * 2012-03-29 2013-10-23 株式会社日立制作所 Battery system
CN103367819B (en) * 2012-03-29 2016-01-06 株式会社日立制作所 Battery system
CN102616144A (en) * 2012-04-25 2012-08-01 电子科技大学 Method and device for controlling safe operation of electric automobile
CN103825323A (en) * 2014-02-11 2014-05-28 江苏博强新能源科技有限公司 Charging self-adaptive current-limiting system
CN103825323B (en) * 2014-02-11 2015-08-26 江苏博强新能源科技有限公司 A kind of charging adaptive throttling system
WO2016062121A1 (en) * 2014-10-24 2016-04-28 北京凌云智能科技有限公司 Battery switching method, battery management system and power supply device
CN106921188A (en) * 2015-12-24 2017-07-04 杭州骑客智能科技有限公司 Electrodynamic balance car lithium battery explosion protection system
CN105730267A (en) * 2016-01-27 2016-07-06 安徽江淮汽车股份有限公司 Control method and system for battery pack of electric automobile
CN105730267B (en) * 2016-01-27 2018-02-13 安徽江淮汽车集团股份有限公司 A kind of battery of electric vehicle bag control method and its system
CN109334510A (en) * 2018-11-23 2019-02-15 北斗航天汽车（北京）有限公司 A kind of motor-driven loading vehicle battery pack parameter display system and display methods
CN113370796A (en) * 2021-05-18 2021-09-10 深圳万华数据科技有限公司 Wireless scooter voltage regulation method, remote controller, scooter and storage medium
CN115273470A (en) * 2022-07-26 2022-11-01 重庆铭凯科技发展有限公司 Intelligent instrument system of electric motorcycle and control method
CN115273470B (en) * 2022-07-26 2024-04-02 重庆铭凯科技发展有限公司 Intelligent instrument system of electric motorcycle and control method

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