CN108705936A - Battery modules and its method and control unit and electric vehicle - Google Patents
Battery modules and its method and control unit and electric vehicle Download PDFInfo
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- CN108705936A CN108705936A CN201710178068.2A CN201710178068A CN108705936A CN 108705936 A CN108705936 A CN 108705936A CN 201710178068 A CN201710178068 A CN 201710178068A CN 108705936 A CN108705936 A CN 108705936A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to electric automobiles, disclose a kind of method for distributing address to multiple battery modules control unit CMU being connected in series with, and this method includes：Battery management unit BMU sends broadcast singal by bus to the multiple CMU, to require the multiple CMU to remove respective address；The multiple CMU enters inactivated state after removing respective address；The BMU distributes different addresses to the multiple CMU by bus, wherein in each address allocation procedure, the address of the BMU broadcast is only activated and be assigned there are one CMU；Wherein, CMU is activated by the BMU or the CMU being activated in upper primary address allocation procedure.The other aspects of the present invention also provide the BMU and CMU using the above method, and include the battery module of the BMU and CMU.
Description
Technical field
The present invention relates to electric automobiles, more particularly to method, the battery for distributing address to battery modules control unit
Module control unit, battery management unit and battery modules and electric vehicle.
Background technology
The battery pack of power system of electric automobile application is made of multiple battery modules, and each battery modules include multiple phases
The battery cell of connection.Each battery modules configure a battery modules control unit (CMU, Cell Measure Unit), electricity
Pond module control unit is for acquiring battery cell parameter in battery modules and carrying out state control to battery cell.Battery pack is logical
It often also configures there are one battery management unit (BMU, Battery Management Unit), battery management unit is used to handle
The collected parameter of battery modules control unit carries out condition monitoring to entire battery pack and state controls.
In the prior art, corresponding different battery modules, CMU need different numbers, that is, distribute address, and these are compiled
Number CMU manufacture or battery pack assembling before set, it is suitable according to the number of CMU itself in battery pack assembling process
Sequence is assembled, a series of difficulties that this just brings production, buying, group are loaded onto, and also and to cause CMU cannot achieve logical
With, thus cause battery pack packaging efficiency low.
In the prior art, there are the numbering plan of cascade voltage acquisition chip, cascade voltage acquisition chip passes through SPI feet
The signal of input is used as mark to determine the position of monitored single battery in the battery to a Position Number oneself is demarcated
Determine address, then is given by SPI human hair combing wastes and oneself number the value for adding one to next subtending board.But cascade voltage acquisition chip is
It applies in the high-pressure side of battery pack, and CMU is the low-pressure side applied in battery pack, CMU itself and without being inputted by SPI feet
Signal to carry out the physical arrangement and function of Position Number to oneself, SPI also adheres to different communications protocol separately from CAN, therefore
This scheme cannot be applied in the connection structure between CMU and BMU.
There is also following distribution address approach in the prior art：Distribution address is realized by hardware jumper, passes through instruction sheet
Solely to single controller writing address, realize that address is distributed in address by the wire jumper on harness.
But the said program of the prior art all have underaction, inefficiency defect.
Invention content
The purpose of the invention is to overcome the above problem of the existing technology, a kind of battery modules control unit is provided
It can be effectively that the battery modules control unit CMU in battery modules distributes address to divide the CMU methods for matching address, this method,
To improve the versatility of CMU, production, the packaging efficiency of battery modules are further improved.
Other aspects of the present invention also provide battery modules control unit CMU, the battery management unit using the method
BMU and including the CMU and the battery modules of the BMU including the electric vehicle of the battery modules, the CMU and BMU have general
The strong advantage of property, can significantly improve production, the packaging efficiency of battery modules and electric vehicle.
To achieve the goals above, the present invention provides a kind of for multiple battery modules control units being connected in series with
The method that CMU distributes address, this method include：Battery management unit BMU sends broadcast letter by bus to the multiple CMU
Number, to require the multiple CMU to remove respective address；The multiple CMU enters inactivation shape after removing respective address
State；The BMU distributes different addresses to the multiple CMU by bus, wherein in each address allocation procedure, only one
A CMU is activated and is assigned the address of the BMU broadcast；Wherein, CMU is distributed by the BMU or in upper primary address
The CMU that is activated in the process is activated.
Preferably, the multiple CMU is electrically connected in series with the BMU, and the different address of the distribution includes：Step 1)：
The BMU activates a CMU being directly electrically connected with the BMU in the multiple CMU, and passes through one address of bus broadcast；Step
It is rapid 2)：The CMU being activated receives and is assigned the address of broadcast, the address assigned to BMU reports, and activates electric therewith
Next CMU of connection；Step 3)：The BMU receives the assigned address and the assigned address is added one
Value is to generate and broadcast new address；Step 4)：The next CMU being active is received and is assigned described new
Address, and report the new address to the BMU, and activate next one CMU being electrically connected；And repeat step
It is rapid 2) to step 4), until each CMU in the multiple CMU is assigned address.
Preferably, the BMU activates the CMU being directly electrically connected with the BMU in the multiple CMU to include：It is described
BMU sends an activation signal to a CMU being directly electrically connected with the BMU；Wherein, one be directly electrically connected with the BMU
A CMU is activated when receiving the activation signal.
Preferably, the different address of the distribution further includes：The CMU of the activation signal is received when its own is divided
When with address, activation signal identical with the activation signal is sent to another CMU connected to it.
According to another aspect of the present invention, a kind of battery modules control unit CMU is also provided, which is configured to：Pass through
Bus receives broadcast singal from battery management unit BMU, and the address of itself is removed in response to the broadcast singal；Removing address
Enter inactivated state later；Activation signal is received from the BMU or upper CMU being electrically connected, and in response to the activation
Signal is activated；The address broadcasted by the BMU received by the bus is assigned as the address of itself after being activated；
To the address that BMU broadcast is assigned after distributing address；And activation and the next CMU of electricity connecting.
Preferably, which can be configured to：When its own be activated and by successfully distribute address when, will be from institute
The upper CMU reception activation signals stated BMU or be electrically connected are sent to the next CMU being electrically connected.
According to another aspect of the present invention, a kind of battery management unit BMU is also provided, the BMU is configured to：By total
Line sends broadcast singal to the multiple CMU, to require the multiple CMU to remove respective address；And by bus to institute
It states multiple CMU and distributes different addresses, wherein in each address allocation procedure, be only activated there are one CMU and be assigned institute
State the address of BMU broadcast；Wherein, CMU is swashed by the BMU or the CMU being activated in upper primary address allocation procedure
Living.
Preferably, the BMU can be configured to：Activate one be directly electrically connected with the BMU in the multiple CMU
A CMU, and reported to the BMU by one address of bus broadcast wherein the CMU being activated receives and be assigned the address of broadcast
Assigned address is accused, and activates the next CMU being electrically connected；And receive the assigned address and by the quilt
A value is added to generate and broadcast new address in the address of distribution, wherein the next CMU being active is received simultaneously
It is assigned the new address, and the new address is reported to the BMU, and activates next one CMU being electrically connected.
In accordance with a further aspect of the present invention, a kind of battery modules are also provided, which includes battery described above
Administrative unit BMU and at least one battery modules control unit CMU described above.
Preferentially, the BMU and at least one CMU are sequentially connected in series.
Another aspect of the present invention also provides a kind of electric vehicle, which includes above-mentioned battery modules.
Through the above technical solutions, can be after battery modules complete assembling, by BMU to each CMU therein points
With address, to improve the versatility of CMU, the efficiency of the buyings of battery modules, production and assembling process is greatly improved,
And the process for distributing address is simple and is easily achieved, and can further decrease the production cost of battery modules.
Description of the drawings
Fig. 1 is the schematic diagram of the connection relation of CMU and BMU according to an embodiment of the invention；
Fig. 2 is the stream according to an embodiment of the invention for the method to the addresses battery modules control unit distribution CMU
Cheng Tu；
Fig. 3 is the method according to another embodiment of the present invention for the addresses battery modules control unit distribution CMU
Flow chart；
Fig. 4 is the receiving module according to an embodiment of the invention for the control circuit in battery management unit BMU
Circuit diagram；
Fig. 5 is the sending module according to an embodiment of the invention for the control circuit in battery management unit BMU
Circuit diagram；
Fig. 6 is the control circuit according to an embodiment of the invention for being used in battery modules control unit CMU
Circuit diagram；
Fig. 7 is the control circuit according to an embodiment of the invention for being used in battery modules control unit CMU
Structure diagram；And
Fig. 8 is the structure diagram according to an embodiment of the invention for the control circuit in battery management unit BMU.
Reference sign
710：First controllable switch 711：First end
712：Second end 713：First control terminal
720：Second controllable switch 721：Third end
722：4th end 723：Second control terminal
810：Receiving module 820：Sending module
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 1 is the schematic diagram of the connection relation of CMU and BMU according to an embodiment of the invention.As shown in Figure 1, BMU with it is more
A CMU is sequentially connected in series electrical connection, and is also connected by bus (such as CAN bus) between BMU and each CMU, to which BMU can
To be communicated with each CMU.In Fig. 1, F_out is the electrical signal of BMU and CMU, and F_in is that the electricity of BMU and CMU connects
Number receiving terminal, the electric signal for example can be aftermentioned activation signal, the direction of transfer of the arrow instruction electric signal in Fig. 2.
Wherein, the ends F_out of BMU are connected to first CMU (CMU1 in such as Fig. 1) being directly electrically connected, the ends F_in of BMU with
The ends F_out of the last one CMU (CMU6 in such as Fig. 1) in the multiple CMU being sequentially connected in series are electrically connected.It should be noted that
The connection relation shown between BMU and multiple CMU is only exemplary in Fig. 1, but the actual quantity of CMU is not limited to Fig. 1
In quantity.And CMU1-CMU6 in Fig. 1 simply to illustrate that convenience and the title that assigns, do not represent each CMU
Address, it is that it distributes address that actually each CMU, which needs to wait for,.
Fig. 2 is the stream according to an embodiment of the invention for the method to the addresses battery modules control unit distribution CMU
Cheng Tu.As shown in Fig. 2, this method may comprise steps of：
In step S210, battery management unit BMU sends broadcast singal by bus to the multiple CMU, to require
The multiple CMU removes respective address.BMU can by CAN lines as shown in Figure 1 to the multiple CMU broadcast singals,
Such as address instruction is removed, the multiple CMU can pass through the master control inside each CMU when receiving the removing address instruction
Molding block address respective clearly.
In step S220, the multiple CMU enters inactivated state after removing respective address.In inactivated state
Under, the electrical connection between each CMU is separated, that is, and electric signal (activation signal as be described hereinafter) can not be transmitted by CMU, and
And CMU will not be itself distribution address under inactivated state.
In step S230, the BMU distributes different addresses to the multiple CMU by bus, wherein every time
In the assigning process of location, the address of the BMU broadcast is only activated and is assigned there are one CMU.Wherein, CMU is by the BMU
Or the CMU that is activated in upper primary address allocation procedure is activated.
Fig. 3 is the method according to another embodiment of the present invention for the addresses battery modules control unit distribution CMU
Flow chart.When as shown in Figure 1, the multiple CMU is electrically connected in series with the BMU, this method can be with as shown in figure 3, include
Following steps：
Wherein, step S310-S320 is the same as above-mentioned steps S210-S220.
In step S330, the BMU activates a CMU being directly electrically connected with the BMU in the multiple CMU, and
Pass through one address of bus broadcast.
The mode for the CMU that BMU activation is directly electrically connected preferably is that BMU is directly electrically connected to the BMU
A CMU send an activation signal, the quilt when receiving the activation signal with the CMU that the BMU is directly electrically connected
Activation.
The activation signal for example can be a high level signal.As shown in FIG. 6 be used for can be configured in the BMU
The sending module of control circuit in battery management unit BMU.As shown in figures 1 to 6, the F_out Main in Fig. 6 are to send
The control terminal of module, the control terminal can be connected to the main control module (not shown) of BMU, when BMU activation is directly electrically connected
A CMU (such as CMU1 in Fig. 1) when, which can be set to high level with the ends F_out of sending module, to send out
Go out a high level signal, the ends F_in of only CMU1 can receive the high level signal at this time, when the main control module of CMU1 detects
To its end F_in be high level when be activated.
The inactivated state can be controlled by the main control module of CMU, for example, each CMU in multiple CMU can match
It is equipped with the control circuit for being used in battery modules control unit CMU as shown in Figure 7.Wherein, the ends MCU_F_out with
The main control module (not shown) of CMU connects, when each CMU receives the removing address instruction of BMU broadcast, the master control molding
The ends MCU_F_out can be set to low level by block, and to triode Q2 cut-offs, the base stage of triode Q1 is suspended, therefore the control
The output end F_out of circuit processed can only export low level, thus the high level that sends of BMU can not be transmitted to from corresponding CMU it is next
A CMU.
In step S340, the CMU being activated receives and is assigned the address of broadcast, is assigned to BMU reports
Address, and activate the next CMU being electrically connected.
The step can also preferably include：The CMU of the activation signal is received when its own has been assigned address,
Activation signal identical with the electric signal is sent to another CMU connected to it.
The address broadcasted by BMU can be just assigned as the address of itself by each CMU when detecting that itself is activated.Example
Such as, it is high level, only CMU1 meetings due to there was only the ends F_in of CMU1 as shown in fig. 7, in BMU broadcast addresses for the first time
Itself is distributed in the addresses broadcasted BMU, that is, executes write address operation, and other CMU will not carry out write address operation.It has executed
Its address report will be written to BMU in the CMU of write address operation.
Step S350, the BMU receive the assigned address and by the assigned address add a value with
It generates and broadcasts new address.It is described analyzed and address on the value added can be just, or it is negative, such as the value
Can be 1, the address of CMU1 to CMUn is successively plus 1 that the value may be -1 at this time, at this time the address of CMU1 to CMUn be according to
Secondary to subtract 1, wherein n is the total quantity of CMU.
In step S360, the next CMU being active receives and is assigned the new address, and to
The BMU reports the new address, and activates next one CMU being electrically connected.
In step S370, judge whether that each CMU in the multiple CMU has been assigned address, if it is,
Distribution address function terminates, if it is not, then S340-S370 is repeated, to complete to distribute the operation of address for all CMU.
For example, the reception for the control circuit in battery management unit BMU as shown in Figure 5 can be configured in BMU
Module.When the last one CMU in the CMU being sequentially connected in series is activated, which is sent to activation signal described
Receiving module judges that each CMU has been assigned address when receiving module receives the activation signal.
Another embodiment of the present invention also provides a kind of battery modules control unit CMU, which is configured to：Pass through
Bus receives broadcast singal from battery management unit BMU, and the address of itself is removed in response to the broadcast singal；Removing address
Enter inactivated state later；Activation signal is received from the BMU or upper CMU being attached thereto, and is believed in response to the activation
It number is activated；The address broadcasted by the BMU received by the bus is assigned as the address of itself after being activated；
Distribute the address being assigned to BMU broadcast after address；And next CMU that activation is attached thereto.
Preferably, which can be configured to：When its own be activated and by successfully distribute address when, will be from institute
The upper CMU reception activation signals stated BMU or be attached thereto are sent to the next CMU being attached thereto.
One more embodiment of the present invention also provides a kind of battery management unit BMU, and the BMU is configured to：Pass through bus
Broadcast singal is sent to the multiple CMU, to require the multiple CMU to remove respective address；And by bus to described
Multiple CMU distribute different addresses, wherein in each address allocation procedure, are only activated and are assigned described there are one CMU
The address of BMU broadcast；Wherein, CMU is activated by the BMU or the CMU being activated in upper primary address allocation procedure
's.
Preferably, the BMU can be configured to：Activate one be directly electrically connected with the BMU in the multiple CMU
A CMU, and reported to the BMU by one address of bus broadcast wherein the CMU being activated receives and be assigned the address of broadcast
Assigned address is accused, and activates the next CMU being electrically connected；And receive the assigned address and by the quilt
A value is added to generate and broadcast new address in the address of distribution, wherein the next CMU being active is received simultaneously
It is assigned the new address, and the new address is reported to the BMU, and activates next one CMU being electrically connected.
Fig. 4 is the receiving module according to an embodiment of the invention for the control circuit in battery management unit BMU
Circuit diagram.As shown in figure 4, F_in is receiving terminal, F_in Main are electrically connected to the main control unit (not shown) of BMU.U6045
For buffer, what is selected in the present embodiment is the dual schmidt trigger buffer of model SN74LVC2G17-Q1, wherein respectively
The function of pin is that the known knowledge of this field is normal.But this is exemplary explanation, and those skilled in the art may also basis
It needs to select different buffers.
The activity number that receiving module is received is inputted by the ends F_in, so the input terminal 1A of input buffer U6045 and
2A is exported, the wherein control terminal F_in of receiving module after the inter-process of buffer U6045 by its output end 1Y and 2Y
Main is connected to output end 2Y, and control terminal F_in Main are electrically connected to the main control module of BMU, at the internal control of BMU
Reason.The ends output end 1Y connection F_in SAFE.The ends F_in SAFE are reserved control terminals, are come with specific reference to the system architecture of BMU
Configuration.In some embodiments, the control terminal of a receiving module can also be only configured, such as only utilizes the defeated of buffer 6045
Enter to hold 1A and output end 1Y, or only utilizes input terminal 2A and output end 2Y.
In addition, diode D734, D735, D736 in Fig. 4 play a protective role, can be configured as needed in practice.Electricity
Appearance C804 and C871 is filter capacitor, to remove noise signal.Resistance R803 and R804 are protective resistance, prevent buffer because of mistake
It flows and damages.These components can according to specific circumstances be configured by those skilled in the art.
Fig. 5 is the sending module according to an embodiment of the invention for the control circuit in battery management unit BMU
Circuit diagram.As shown in figure 5, F_out Main are the control terminal of the sending module, it is electrically connected to the main control module of BMU.The hair
It includes controllable switch to send module, and the controllable switch in the present embodiment includes triode Q109 and resistance R103, resistance R800, three poles
The emitter of pipe is electrically connected to power supply, and resistance R103 is electrically connected to the base stage and emitter of triode Q109, the hair of sending module
The ends sending end F_out configure the collector in the triode Q109, the ends F_out and resistance are also in series between collector
R801.When BMU sends activation signal, the main control module of BMU sets low F_out Main, to which triode Q109 is connected,
The ends F_out export high level at this time, which can be used as the activation signal that BMU is sent to CMU.
In Fig. 5, the collector of triode Q109 is also grounded by capacitance C869, is connected to after resistance R805 and R806 series connection
Between the ends F_out and ground terminal, the ends F_out MONPRE are configured between hindering R805 and resistance R806, for being carried out to circuit
Monitoring can configure amplifier and other element devices, for carrying out fault diagnosis to circuit in practice by addition.
In Fig. 5, it is also in series with fuse device FU3 in the collector of triode Q109, it is excessive for preventing from occurring in circuit
Electric current and diode D733, for preventing reverse current.Diode is also reversely electrically connected between power supply and ground terminal
D710 and D709, for preventing reverse power connection.
Fig. 6 is the control circuit according to an embodiment of the invention for being used in battery modules control unit CMU
Circuit diagram.The control circuit includes the first controllable switch and the second controllable switch.As shown in fig. 6, the first controllable switch includes three
Pole pipe Q1 and resistance R21, resistance R22, wherein triode Q1 is positive-negative-positive, and the emitter of triode Q1 is configured as control electricity
The receiving terminal on road, resistance R21 are electrically connected between the emitter and base stage of triode Q1, and resistance R22 is electrically connected to triode Q1
Base stage.Collector of the transmitting terminal configuration of the control circuit in triode Q1.Second controllable switch includes triode Q2 and electricity
Hinder R24, resistance R26, wherein triode Q2 is NPN type, and the ends control terminal MCU_F_out of the control circuit are configured in triode
The base stage of Q2, resistance R24 are connected between the ends MCU_F_out and the base stage of triode Q2, and the one end resistance R26 is electrically connected to three poles
The base stage of pipe Q2, other end ground connection.
The ends MCU_F_out are electrically connected to the main control module of CMU, when the main control module sets low the ends MCU_F_out,
Triode Q2 cut-offs, no matter the ends F_in input high level or low level, the ends F_out all export low level；When the master control molding
When MCU_F_out is set to high level by block, if the ends F_in input high level, the ends F_out are high level, if the ends F_in are
Low level, then triode Q1 cut-offs, the ends F_out are low level.
When the control circuit is applied in MCU, when MCU receives the removing address instruction of BMU broadcast, corresponding MCU
Main control circuit the MCU_F_out of the control circuit is set to low level, to make the ends transmitting terminal F_out of the control circuit
For low level.It is directly electrically coupled to as a result, outside a MCU of the sending module transmitting terminal of BMU, other MCU can not be received
The high level that the sending module is sent, and high level can only be transmitted by the MCU being activated.
By taking situation shown in FIG. 1 as an example, only MCU1 can directly receive the high level of BMU transmissions, when.When MCU1 is swashed
When living and being assigned address, its MCU_F_out is set to high level by the main control module of MCU1, to which corresponding F_out is defeated
Go out high level.Since the ends receiving terminal F_in of MCU2 are set in the ends the F_out electrical connection of MCU1, thus the F_in of MCU2 can receive at this time
To the high level sent by MCU1, MCU2 is activated, and the main control module of MCU2, which connects, detects that correspondingly received end F_in is height
When level, the addresses broadcasted BMU are assigned as the address of itself, and the MCU_F_out of MCU2 is set to high level, to high electricity
It is flat that MCU3 is sent to by MCU2.The MCU being sequentially connected in series sends high level to next CMU successively through the above way, until
The receiving terminal F_in of control circuit receives high level in BMU.
Control circuit shown in fig. 6 further includes fuse device FU1 and FU2, the collector of triode Q1 is connected in series with, for preventing
Electric current only in circuit is excessive.The control circuit further includes protection and monitoring modular, including：Resistance R23 is series at triode Q1
Collector；Filter circuit, including resistance R25 and capacitance C44, resistance R25 and capacitance C44 it is parallel with one another, and one end be electrically connected
In the collector of triode Q1, other end ground connection.The control circuit further includes diode D8 and D9, and Opposite direction connection is in power supply and connects
Between ground terminal.As shown in fig. 6, the control circuit is also configured with test lead TP9, TP10 and TP11, for testing circuit,
Wherein, test lead TP10 configurations are at the ends control terminal MCU_F_out of the control circuit, and test lead TP11 configurations are triode Q2's
Base stage, test lead TP9 configurations are in transmitting terminal F_out.
More than, using high level signal as activation signal for be described in detail the present invention be multiple CMU analysis and address
Process.But it is understood that when, activation signal of the present invention is not limited to above-mentioned high level signal, for example, it is also possible to
Configure activation signal to low level.
Fig. 7 is the control circuit according to an embodiment of the invention for being used in battery modules control unit CMU
Structure diagram.
As shown in fig. 7, the control circuit includes：First controllable switch 710, first controllable switch 710 have first end
711, second end 712 and the first control terminal 713；Second controllable switch 720, second controllable switch 720 have third end
721, the 4th end 722 and the second control terminal 723；First control terminal 713 is electrically connected with the third end 721, and described
Four ends 722 are grounded；The first end 711 is used as activation signal input terminal, the second end 712 to be used as activation signal output end；
Second control terminal 723 connects the main control module in the CMU.Second control terminal 723 is defeated for controlling the control circuit
The activation signal gone out.
The control circuit further includes protection and monitoring modular, and the protection and monitoring modular are electrically connected with the second end.
The protection and monitoring modular may include the fuse device being electrically connected with the second end.
It is described protection and monitoring modular can include resistance R25 and capacitance C44 as shown in Figure 6, wherein the resistance R25 with
The capacitance C44 is parallel with one another, and one end is connected to the second end, other end ground connection.
First controllable switch 720 and/or second controllable switch 710 may include triode, CMOS tube, IGBT
One of.
Another embodiment of the present invention also provides a kind of battery modules control unit CMU, may include as described above
Control circuit for CMU.
Fig. 8 is the structure diagram according to an embodiment of the invention for the control circuit in battery management unit BMU.
As shown in figure 8, the control circuit includes：Receiving module 810, the master control molding of the receiving module 810 and the BMU
Block is electrically connected；Sending module 820, the sending module include：Controllable switch, the controllable switch include control terminal, first end and
Two ends, the control terminal are electrically connected with the main control module, and the first end is for connecting power supply, and the second end is for defeated
Go out activation signal.
The controllable switch may include one of triode, CMOS tube, IGBT.
The control circuit can also include fuse device, and the fuse device is series at the second end.
The control circuit can also include the filter circuit that the activation signal for being exported to the second end is filtered.
The receiving module 810 includes：Buffer module, the input terminal of the buffer module for receive from it is described
The electric signal of the battery modules control unit CMU outputs of BMU electrical connections, the output end of the buffer module are connected to the BMU
Main control module.
In one embodiment of this invention, circuit structure as shown in Figure 4 may be used in receiving module 810；Sending module
820 may be used circuit structure as shown in Figure 5.It will be recognized to those skilled in the art that receiving module 810 and transmission mould
The circuit structure of other forms may be used in block 820.
Another embodiment of the present invention also provides a kind of battery management unit BMU, may include being used for BMU as described above
The control circuit.
It includes battery modules control unit CMU described above and the cell tube that the other embodiment of the present invention, which also provides,
Manage administrative unit BMU.
One more embodiment of the present invention also provide include above-mentioned battery modules electric vehicle.
Although fig. 4 to fig. 6 depicts specific circuit, it will be recognized to those skilled in the art that the scope of the present invention
Without being limited thereto, those skilled in the art according to the present invention can conceive, to the type, quantity, electricity of the component in Fig. 4 to 6
Line structure carry out various modifications, these modifications also fall into the scope of the present invention.Although for example, controllable switch disclosed in Fig. 4 to 6
Including triode, still, it will be understood by those skilled in the art that controllable switch can also have other ways of realization, such as
CMOS tube, IGBT etc..
The optional embodiment of example of the present invention, still, the embodiment of the present invention and unlimited are described in detail above in association with attached drawing
Detail in the above embodiment can be to the embodiment of the present invention in the range of the technology design of the embodiment of the present invention
Technical solution carry out a variety of simple variants, these simple variants belong to the protection domain of the embodiment of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the embodiment of the present invention pair
Various combinations of possible ways no longer separately illustrate.
It will be appreciated by those skilled in the art that it is that can pass through to implement the method for the above embodiments
Program is completed to instruct relevant hardware, which is stored in a storage medium, including some instructions are used so that one
A (can be microcontroller, chip etc.) or processor (processor) execute the whole of each embodiment the method for the application
Or part steps.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the embodiment of the present invention, as long as it is not
The thought of the embodiment of the present invention is violated, disclosure of that of the embodiment of the present invention is equally should be considered as.
Claims (11)
1. a kind of method for distributing address to multiple battery modules control unit CMU being connected in series with, which is characterized in that should
Method includes：
Battery management unit BMU sends broadcast singal by bus to the multiple CMU, each to require the multiple CMU to remove
From address；
The multiple CMU enters inactivated state after removing respective address；And
The BMU distributes different addresses to the multiple CMU by bus, wherein in each address allocation procedure, only
One CMU is activated and is assigned the address of the BMU broadcast；Wherein, CMU is by the BMU or in upper primary address point
It is activated with the CMU being activated in the process.
2. described according to the method described in claim 1, it is characterized in that, the multiple CMU is electrically connected in series with the BMU
Distributing different addresses includes：
Step 1)：The BMU activates a CMU being directly electrically connected with the BMU in the multiple CMU, and wide by bus
Broadcast an address；
Step 2)：The CMU being activated receives and is assigned the address of broadcast, the address assigned to BMU reports, and activates
The next CMU being electrically connected；
Step 3)：The BMU receives the assigned address and a value is added in the assigned address to generate simultaneously extensively
Broadcast new address；
Step 4)：The next CMU being active receives and is assigned the new address, and is reported to the BMU
The new address is accused, and activates next one CMU being electrically connected；
Step 2) is repeated to step 4), until each CMU in the multiple CMU is assigned address.
3. according to the method described in claim 2, it is characterized in that, straight with the BMU in the multiple CMU of BMU activation
A CMU for connecing electrical connection includes：
The BMU sends an activation signal to a CMU being directly electrically connected with the BMU；
Wherein, a CMU being directly electrically connected with the BMU is activated when receiving the activation signal.
4. according to the method described in claim 3, it is characterized in that, the different address of the distribution further includes：
The CMU of the activation signal is received when its own has been assigned address, to another CMU for being connected electrically send with
The identical activation signal of the activation signal.
5. a kind of battery modules control unit CMU, which is characterized in that the CMU is configured to：
Broadcast singal is received from battery management unit BMU by bus, and removes the address of itself in response to the broadcast singal；
Enter inactivated state after removing address；
Activation signal is received from the BMU or upper CMU being electrically connected, and is activated in response to the activation signal；
The address broadcasted by the BMU received by the bus is assigned as the address of itself after being activated；
To the address that BMU broadcast is assigned after distributing address；And
Activate the next CMU being electrically connected.
6. battery modules control unit CMU according to claim 5, which is characterized in that the CMU is further configured to：
When its own is activated and when being assigned address, the activation signal of reception is sent to be electrically connected it is next
CMU。
7. a kind of battery management unit BMU, which is characterized in that the BMU is configured to：
Broadcast singal is sent to the multiple CMU by bus, to require the multiple CMU to remove respective address；And
Different addresses is distributed to the multiple CMU by bus, wherein in each address allocation procedure, only there are one CMU
It is activated and is assigned the address of the BMU broadcast；Wherein, CMU is by the BMU or in upper primary address allocation procedure
The CMU that is activated is activated.
8. BMU according to claim 7, which is characterized in that the BMU is configured to：
A CMU being directly electrically connected with the BMU in the multiple CMU is activated, and by one address of bus broadcast, wherein by
The CMU of activation receives and is assigned the address of broadcast, the address assigned to BMU reports, and activates and be electrically connected
Next CMU；And
It receives the assigned address and a value is added into generate and broadcast new address in the assigned address, wherein
The next CMU being active receives and is assigned the new address, and reports the new ground to the BMU
Location, and activate next one CMU being electrically connected.
9. a kind of battery modules, which is characterized in that including battery management unit BMU according to claim 5 or 6 and at least
One battery modules control unit CMU according to claim 7 or 8.
10. battery modules according to claim 9, which is characterized in that the BMU and at least one CMU go here and there successively
Connection electrical connection.
11. a kind of electric vehicle, which is characterized in that including battery modules according to claim 9 or 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178068.2A CN108705936A (en) | 2017-03-23 | 2017-03-23 | Battery modules and its method and control unit and electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710178068.2A CN108705936A (en) | 2017-03-23 | 2017-03-23 | Battery modules and its method and control unit and electric vehicle |
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Application publication date: 20181026 |