CN103415976A - Power supply system and identification information setting method for power supply system - Google Patents
Power supply system and identification information setting method for power supply system Download PDFInfo
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- CN103415976A CN103415976A CN2011800691555A CN201180069155A CN103415976A CN 103415976 A CN103415976 A CN 103415976A CN 2011800691555 A CN2011800691555 A CN 2011800691555A CN 201180069155 A CN201180069155 A CN 201180069155A CN 103415976 A CN103415976 A CN 103415976A
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- identifying information
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- end cell
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
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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
Abstract
[Problem] To enable automatic assignment of identification information in a low-cost configuration. [Solution] One of the connectors (4) of a terminal battery unit (1Z) located at an end is connected to a terminal resistor (3); one of the connectors (4) of a first battery unit (1A) located at the other end of multiple battery units (1), which are multi-drop connected, is connected to a master unit (2); the unit controller (13) of the terminal battery unit (1Z) can, upon activation of the master unit (2), detect connection of the terminal resistor (3) and set an initial value to the terminal battery unit (1Z) as identification information for distinguishing the battery unit from the other battery units (1); and, upon setting of identification information to the terminal battery unit (1Z), the unit controller (13) of a second terminal battery unit (1Y) connected to the terminal battery unit (1Z) makes an inquiry to the other battery units (1) as to whether identification information has been assigned, and in accordance with a response to the inquiry, sets identification information that has not been assigned yet.
Description
Technical field
The present invention relates to a kind of power-supply system that can connect many cell-like battery units, above-mentioned battery unit is built-in with a plurality of battery cells connected in series or in parallel and can supply capability, the invention still further relates to in this power-supply system, each battery unit being set the method for identifying information.
Background technology
Develop following power-supply system, formed and to be built-in with a plurality of battery cells and to increase the two battery unit of output voltage and output current with cell-like, by being connected in series many battery units, can supply with larger electric power.In this power-supply system, monitor the action of each battery unit, in the situation that the voltage of a part of battery unit etc. have occurred is abnormal, detect that this is abnormal and take to cut off or stop the countermeasure such as output.
When carrying out such supervision, need to give separately be used to identifying the identification id information such as address of each battery unit.In the past, in order to set separately such identification id, DIP switch was set, or has carried out in advance identification id being write to E
2The operations such as pROM.
Yet the operation of manually setting such ID is very miscellaneous.Therefore, several methods (for example patent documentation 1,2) of ID have also been proposed automatically each unit to be given.
But, in the method that these patent documentations 1,2 are put down in writing, as shown in Figure 4, and main ECU401 be connected in parallel a plurality of between ECU402, need to carry out the height communication, have complex structure and expensive problem.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2003-209932 communique
Patent documentation 2: TOHKEMY 2008-99482 communique
Summary of the invention
(problem that invention will solve)
The present invention makes in order to solve existing problem.Main purpose of the present invention with provide a kind of and do not use bus and the power-supply system of automatically giving by being connected of holding wire also can realizing identifying information and the identifying information establishing method of power-supply system.
(be used to scheme and the invention effect of dealing with problems)
To achieve these goals, according to the 1st power-supply system of the present invention, possess: master unit 2, a plurality of battery units 1, multiple spot connect into an end and are connected above-mentioned master unit 2, and terminal resistance 3, being connected to another ends of a plurality of battery units 1 that above-mentioned multiple spot connects, each battery unit 1 possesses: more than one battery block 12, a plurality of battery cells 11 of connecting and/or be connected in parallel form, unit controls section 13, control above-mentioned battery unit 1: and pair of connectors 4, with said units control part 13, be connected, each battery unit 1 is connected each other via connector 4 each other, the connector 4 of the end cell unit 1Z that is positioned at an end in a plurality of battery units 1 that above-mentioned multiple spot connects is connected with above-mentioned terminal resistance 3, the connector 4 of the first battery unit 1A that is positioned at another end in a plurality of battery units 1 that above-mentioned multiple spot connects is connected with above-mentioned master unit 2, if above-mentioned master unit 2 startings, the unit controls section 13 of above-mentioned end cell unit 1Z detects the situation that is connected with above-mentioned terminal resistance 3, can set initial value as the identifying information for distinguishing with other battery units 1 to above-mentioned end cell unit 1Z, the unit controls section 13 of the second end cell unit 1Y be connected with above-mentioned end cell unit 1Z will set the situation of identifying information as opportunity to above-mentioned end cell unit 1Z, whether other battery unit 1 inquiries have been endowed to identifying information, can be according to the response of this inquiry, set still unappropriated identifying information.Thus, when master unit starts, can automatically to each battery unit, give identifying information.Especially, by detection, be used to obtain the connection of the terminal resistance of impedance matching, can give identifying information, therefore do not need to provide separately identifying information to give instruction, can independently at the power-supply system side-draw, obtain identifying information, flexibility is high.
In addition, according to the 2nd power-supply system, can constitute: by above-mentioned terminal resistance 3, be connected with above-mentioned end cell unit 1Z, the unit controls section 13 indication identifying informations of above-mentioned end cell unit 1Z are obtained to beginning.What the connection that thus, multiple spot can be connected to required terminal resistance was also used as identifying information obtains the beginning switch.
In addition, according to the 3rd power-supply system, above-mentioned connector 4 comprises between each battery unit 1, exchanging the identifying information input line 52 of identifying information, in each battery unit 1, above-mentioned identifying information input line 52 is electrically connected to said units control part 13, said units control part 13 constitutes: if the counter-rotating of the signal of above-mentioned identifying information input line 52 changes the identifying information of obtaining identifying information into and obtains pattern.Thus, unit controls section can monitor the identifying information input line, changes identifying information into and obtains pattern.
In addition, according to the 4th power-supply system, above-mentioned connector 4 comprises the earth connection 53 of ground connection, above-mentioned terminal resistance 3 possesses the terminator terminating junctor 43 be connected with above-mentioned connector 4, above-mentioned terminator terminating junctor 43 detects resistor 32 and ground connection with above-mentioned earth connection 53 via being connected by identifying information input line 52, the unit controls section 13 of above-mentioned end cell unit 1Z constitutes: be connected with above-mentioned end cell unit 1Z by above-mentioned terminal resistance 3, detect the situation that identifying information input line 52 is grounded via above-mentioned connection detection resistor 32, thereby change identifying information into and obtain pattern.Thus, the end cell unit is by connecting terminal resistance, and the identifying information input line is grounded, so unit controls section changes identifying information into and obtains pattern by this situation being detected.
In addition, according to the 5th power-supply system, above-mentioned pair of connectors 4 is connected in the upstream side connector 41 of above-mentioned master unit 2 sides in above-mentioned multiple spot connects, and the downstream connector 42 that is connected in above-mentioned terminal resistance 3 sides forms, above-mentioned identifying information input line 52 is included in above-mentioned downstream connector 42, above-mentioned upstream side connector 41 comprises between each battery unit 1, exchanging the identifying information output line 51 of identifying information, the unit controls section 13 of above-mentioned end cell unit 1Z can following work: obtain pattern if detect from the signal of the above-mentioned identifying information input line 52 in downstream and change identifying information into, whether the second end cell unit 1Y inquiry that is connected to upstream side from 51 pairs of above-mentioned identifying information output lines has been endowed identifying information, in addition, the second end cell unit 1Y is in the situation that existence is connected in the third terminal battery unit 1X of its upstream side, whether inquiry has been endowed identifying information to this third terminal battery unit 1X equally, by repeatedly carrying out this inquiry action, can whether be endowed identifying information to all battery unit 1 inquiries, and, being in identifying information obtains the end cell unit 1Z of pattern and constitutes: according to the identifying information returned accordingly with inquiry, the minimum value of not giving in the value of the identifying information that can obtain is set as the identifying information of self, and finish identifying information and obtain pattern, in addition, after being received in end cell unit 1Z and having set the situation of identifying information, the the second end cell unit 1Y be connected with this end cell unit 1Z changes too identifying information into and obtains pattern, thereby can set identifying information, by repeatedly carrying out this step, all battery units 1 can be set identifying information successively.Thus, by identifying information input line and identifying information output line, whether other battery units inquiries have been endowed on the basis of identifying information being in the battery unit that identifying information obtains pattern, can have obtained minimum value as identifying information.
In addition, according to the 6th power-supply system, be positioned at the battery unit 1 in downstream, with adjacent with this battery unit 1 and be arranged in being connected of battery unit 1 of upstream side, the identifying information input line 52 comprised in the identifying information output line 51 that the upstream side connector 41 of above-mentioned downstream battery unit 1 comprises and the downstream connector 42 of above-mentioned upstream side battery unit 1 is connected, if the unit controls section 13 of above-mentioned downstream battery unit 1 obtains identifying information under identifying information is obtained pattern, and finish identifying information and obtain pattern, from the identifying information output line 51 of upstream side connector 41, export the LOW signals, the unit controls section 13 of above-mentioned upstream side battery unit 1 detects the LOW signal of the identifying information input line 52 of the downstream connector 42 be connected with this identifying information output line 51, thereby change identifying information into and obtain pattern.Thus, finish if the identifying information of a battery unit is obtained pattern, identifying information is obtained pattern and is finished, and the battery unit that will be connected to its upstream side is switched to identifying information and obtains pattern, can in battery unit, set successively identifying information.
In addition, according to the 7th power-supply system, above-mentioned master unit 2 constitutes: if the LOW signal from the identifying information output line 51 of the first battery unit 1A be connected with this master unit 2 detected, be judged to be all battery units 1 have been set to identifying information, and master unit 2 self is set to identifying information.Thus, from the battery unit in the downstream that is connected with terminal resistance, set successively identifying information, therefore detect the situation of the first battery unit 1A be connected with master unit that is positioned at upstream having been set to identifying information, can be regarded as in all battery units and set identifying information, start actual act.
In addition, according to the 8th power-supply system, the initial value of the identifying information that above-mentioned end cell unit 1Z is given is 0 or 1, and identifying information is added to 1 and set to the next stage battery unit 1 be connected with above-mentioned end cell unit 1Z successively.Thus, each battery unit is added to 1 piecemeal and give identifying information, can with consecutive number, set identifying information to all battery units.
In addition, according to the 9th power-supply system, the unit controls section 13 of above-mentioned battery unit 1 obtains in pattern within a certain period of time at identifying information the second end cell unit 1Y inquiry that is connected in upstream side from 51 pairs of above-mentioned identifying information output lines and whether has been endowed identifying information, if passed through this certain hour, according to the identifying information returned accordingly with inquiry in this moment, the minimum value of not giving in the value of the identifying information that can obtain is set as the identifying information of self, and finishes identifying information and obtain pattern.Thus, each battery unit is obtained in pattern at identifying information, can be overtime when having passed through certain hour, therefore identifier is set to self, and finish identifying information and obtain pattern, make the battery unit of next stage change identifying information into and obtain pattern, by repeatedly carrying out this step, can set successively identifying information.
In addition, according to the identifying information establishing method of the 10th power-supply system, above-mentioned power-supply system has connected: master unit 2; A plurality of battery units 1, be connected with above-mentioned master unit 2 multiple spots; And terminal resistance 3; in the ora terminalis of a plurality of battery units 1, be connected with the ora terminalis of above-mentioned master unit 2 opposition sides; above-mentioned identifying information establishing method is for distinguishing each battery unit 1 in above-mentioned power-supply system, and above-mentioned identifying information establishing method comprises: the operation of starting above-mentioned master unit 2; The end cell unit 1Z be connected with above-mentioned master unit 2 detects and is connected with above-mentioned terminal resistance 3, and above-mentioned end cell unit 1Z is set to the operation of initial value as the identifying information for distinguishing with other battery units 1; The the second end cell unit 1Y be connected with above-mentioned end cell unit 1Z will set the situation of identifying information as opportunity to above-mentioned end cell unit 1Z; whether other battery unit 1 inquiries have been endowed to identifying information; according to the response of this inquiry, set the still operation of unappropriated identifying information; And, in the situation that the n battery unit 1 that existence is connected with above-mentioned the second end cell unit 1Y carries out above-mentioned operation repeatedly, give identifying information to all battery units 1.
In addition, according to the identifying information establishing method of the 11st power-supply system, the minimum value that unit controls section 13 settings of above-mentioned end cell unit 1Z can obtain is as the initial value of identifying information.Thus, can start to give successively so that identifying information does not repeat from minimum value.
In addition, according to the identifying information establishing method of the 12nd power-supply system, each battery unit 1 is as the default value of identifying information and be endowed the maximum that can obtain.Thus, battery unit can be made as to identical state when dispatching from the factory, while save manufacturing and the time in while dispatching from the factory, and while giving identifying information in use, by from minimum value, starting to give, can maintain continuity.
In addition, according to the identifying information establishing method of the 13rd power-supply system, each battery unit 1 constitutes: do not possess be used to preserving the nonvolatile memory of identifying information, if deenergization reverts to default value.Thus, do not need E
2PROM etc., can simplified structure, and constitute the structure of giving identifying information while dropping into power supply each, thus with the reconstruct of the replacing of a part of battery unit and power-supply system irrespectively, all the time can set suitable identifying information, simplification and flexibility that can implementation structure.
The accompanying drawing explanation
Fig. 1 means the block diagram of the power-supply system of embodiments of the invention 1.
Fig. 2 means the flow chart of each battery unit being set the step of id information in the power-supply system of Fig. 1.
Fig. 3 means the block diagram of the structure of battery unit.
Fig. 4 means that existing main ECU can be to setting the block diagram of the supply unit of address from ECU.
Embodiment
Below, embodiments of the present invention are described with reference to the accompanying drawings.But following execution mode illustration is for the power-supply system that technological thought of the present invention is specific and the identifying information establishing method of power-supply system, the present invention is not defined in following content by the identifying information establishing method of power-supply system and power-supply system.Especially, in this specification, in order easily to understand the scope of technical scheme, will the label corresponding with the parts shown in execution mode be labeled in " claims " and reach the parts shown in " be used to scheme one hurdle of dealing with problems ", but be never to be the parts of execution mode by the parts shown in claims are specific.Especially, the size of the component parts that execution mode is put down in writing, material, shape, configuration etc. in the situation that there is no limited record, does not limit scope of the present invention relatively, and they are illustrative examples only.In addition, in order to offer some clarification on, there is the situation of exaggeration in the size and location relation of each parts shown in the drawings etc.In addition, in the following description, same names, symbolic representation is identical or the parts of identical material, suitably detailed.In addition, form in each key element of the present invention, also can form a plurality of key elements by same parts, parts are also used as to a plurality of key elements, on the contrary, also can be realized by the function that a plurality of parts are shared parts.In addition, illustrated content also can be used in other embodiment, execution mode etc. in a part of embodiment, execution mode.
(embodiment 1)
Fig. 1 means the power-supply system 100 of embodiments of the invention 1.100 pairs of master units 2 of this power-supply system, many battery units 1, terminal resistances 3 carry out multiple spot (multidrop) and connect.Each battery unit 1 is built-in with a plurality of battery cells 11, using its output line PL as system output and with various loads, be connected, as power supply, supply with driving electric power.The battery cell 11 of battery unit 1 can be accepted the electric power such as outside source power supply, solar power generation and be recharged, and using the electric power electric discharge of accumulating and play a role as the electric power supply source.Master unit 2 monitors the charging and discharging state of many battery units 1.
(master unit 2)
The terminal that master unit 2 is connected with multiple spot connects, and controls and manage each battery unit 1.Monitor output current, or monitor charged state, the discharge condition of each battery unit 1, detect abnormality.This master unit 2 works as protective circuit.In the inside of master unit 2, monitor the current value of each battery unit 1, if surpass predetermined threshold current, being judged to be is overcurrent, gives a warning, and urges and changes battery unit 1.
In addition, master unit 2 can detect the quantity in parallel of battery block 12 built-in in each battery unit 1 connected.In addition, protective circuit can also be according to the quantity in parallel of this battery block detected 12, and change is for the setting of the threshold current from overcurrent protection battery block 12 automatically.
In addition, master unit 2 user interface that can also be provided for as required the communication interface communicated with external equipment, power-supply system be operated for the user.For example, can on power-supply controller of electric, as operating portion, connect the input equipments such as keyboard and mouse, touch panel and control desk, the regulation maximum current flow, can setting use the battery unit connected.In addition, also can be provided for notifying user's display floater, display lamp when the battery unit abnormal.
(terminal resistance 3)
Terminal resistance 3 is the parts that are installed on the terminal of the connector that multiple spot connects, and purpose is to be used in impedance matching etc.Therefore, as shown in Figure 1, be connected with each other terminating resistor 31 at data wire.This terminal resistance 3 possesses terminator terminating junctor 43, and terminator terminating junctor 43 is connected with 1ZDe downstream, end cell unit connector 42.Terminating resistor 31 is connected with data wire.In addition, terminator terminating junctor 43 detects resistor 32 and ground connection with earth connection 53 via being connected by identifying information input line 52 (will be described in detail later in this article).Connect the resistance value that the resistance value that detects resistor 32 is greater than terminating resistor 31.In this example, terminating resistor 31 is made as to 120 Ω, will connect detection resistor 32 and be made as 2.2k Ω.In addition,, to this terminal resistance 3 special setting identifying information described later, do not process but for example the 1D information of terminal resistance 3 can be made as to 0 yet.
(battery unit 1)
(battery block 12)
(unit controls section 13)
For the driving electric power that drives this unit controls section 13, supply with from battery block 12.Thus, battery unit 1 can independently drive.In addition, also can constitute from outside to each battery unit and supply with and drive electric power.Now, for example, connector comprises power line.Thus, only by connector connection each other, just can realize communication and electric power supply, help simplified structure.
In unit controls section 13 shown in this figure, as the terminal be connected with connector 4, be provided with and send data terminal TXD, receive data terminal RXD, ID input terminal ID_IN, ID lead-out terminal ID_OUT.Send data terminal TXD and be connected with the DATA+ terminal via isolator (Isolator) 14, receive data terminal RXD and be connected with DATA-terminal 14 via isolator 14.DATA+ terminal and DATA-terminal are connected with data wire.In addition, ID input terminal ID_IN is connected with identifying information input line 52 via photoelectrical coupler 15, and ID lead-out terminal ID_OUT is connected with identifying information output line 51 via photoelectrical coupler 15.Thus, can be with stateful connection unit controls section 13 and the connector 4 of electric insulation.In addition, the photoelectrical coupler 15 be connected with ID input terminal ID_IN is set as counter-rotating output.
(connector 4)
As mentioned above, connector 4 consists of upstream side connector 41 and downstream connector 42.Holding wire from connector 4 is connected with unit controls section 13.In battery unit 1 connection each other, with cable 5, connect upstream side connector 41 and the downstream connector 42 of adjacent battery unit 1.In addition, 54 voltages that apply 12V from master unit 2 to pressure-wire.
As shown in Figure 1, the 1D lead-out terminal ID_OUT of unit controls section 13 is electrically connected to the identifying information output line 51 of upstream side connector 41.In addition, the 1D input terminal ID_IN of unit controls section 13 is electrically connected to the identifying information input line 52 of downstream connector 42.Its result, at adjacent battery unit 1 each other, linkage identification information output line 51 and identifying information input line 52.
The identifying information that this ID input terminal ID_IN gives identifying information for order to each battery unit 1 is obtained the identifying information of the execution of pattern and is given the execution member.That is, if ID input terminal ID_IN effectively (active), this unit controls section 13 changes identifying information into and obtains pattern and carry out ID and give.In this example, constitute: ID input terminal ID_IN is in the situation of HIGH signal, is invalid, when input LOW signal, is effectively, carries out thus ID and automatically obtains function.
In addition, this battery unit 1 does not possess the picture E of the id information that preservation temporarily gives
2The nonvolatile memory that PROM is such.Therefore, the id information of each battery unit 1 has: when disconnecting the power supply of battery unit 1, disappear, and the ID that again gives id information from each battery unit 1 of trend when dropping into power supply, during battery unit 1 starting obtains function automatically.In addition, constitute, when battery unit 1 starting, again set without exception initial value.Thus, when manufacturing or connect battery unit 1, do not need to preset different id informations, have advantages of and can save manufacturing process and operation is set.In addition, the initial value of id information is set as value, for example ID=255 of the maximum obtained as id information, and on the other hand, using and 0 or 1 as initial value, incrementally give by ID and automatically obtain the id information that function obtains automatically, thereby can avoid the value of id information automatically obtained and conflicting of initial value.
(id information establishing method)
This power-supply system 100 has sets the function of id information as identifying information automatically to each battery unit 1.Below, based on this step of flowchart text of Fig. 2.
At first, in step S1, at the power supply by master unit 2 and each battery unit 1, disconnect under the state of (OFF), by battery unit 1 connections that be one another in series, namely multiple spot connects, and connects master unit 2 at an ora terminalis, at another ora terminalis connection terminal resistance 3.
Under this state, as step S2, if drop into the power supply of master unit 2, via pressure-wire 54, the unit controls section 13 of each battery unit 1 is applied to the voltage of 12V, each battery unit 1 is started.Now, the id information of each battery unit 1 is by the initial stage.At this, in each battery unit 1, set the initial value of ID=255 as id information.In addition, the unit controls section 13 of each battery unit 1 is made as the LOW signal by the output signal of 1D lead-out terminal ID_OUT and exports.Its result, this LOW signal is fed on the identifying information input line 52 of the battery unit 1 that is connected in downstream after via identifying information output line 51, its result, identifying information input line 52 becomes LOW, in the unit controls section 13 of the battery unit 1 in downstream, the HIGH signal to ID input terminal ID_IN input after by photoelectrical coupler 15 counter-rotatings.Therefore, ID_IN is invalid for the ID input terminal, does not carry out ID and automatically obtains function.
Wherein, 1ZZhong， downstream, the end cell unit connector 42 that only is connected in the final level of multiple spot connection or not battery unit, but connects terminal resistance 3.And the identifying information input line 52 of downstream connector 42 is connected with terminating resistor 32, so the 1D input terminal ID_IN of unit controls section 13 becomes LOW.Its result, ID_IN is effective for the ID input terminal, is transfused to end cell unit 1Z and changes the triggering that identifying information is obtained pattern into, carries out ID and automatically obtains function (step S3).Like this, by the terminator terminating junctor 43 at terminal resistance 3, increase changing the parts of signal condition, what the connection of terminal resistance 3 can be also used as thus to identifying information obtains the beginning switch.
The unit controls section 13 of end cell unit 1Z is to the battery unit request communication of the minimum value with id information (ID=1).If response is arranged, (ID ← ID+1), further request is communicated by letter to increase No. ID.At this, the id information of other battery units is initial condition (ID=255), does not therefore have the battery unit responded.Therefore, through after certain hour, can be overtime.If overtime, unit controls section 13 will be set as less than the id information of response the id information of self.At this, the unit controls section 13 of end cell unit 1Z sets ID=1.In addition, set the signal output of the end cell unit 1Z of id information to ID lead-out terminal ID_OUT, output HIGH signal, finish identifying information and obtain pattern.Afterwards, become the communication wait state (step 54) of carrying out independent unit 2.
Then, in step S5, in the situation that the upstream side of end cell unit 1Z is connected with other battery units, changes this upstream side battery unit into identifying information and obtain pattern, similarly set id information.In the example of Fig. 1, owing to being connected with the second end cell unit 1Y, therefore enter step S6.At this, HIGH signal from the ID lead-out terminal ID_OUT of end cell unit 1Z is imported into the identifying information input line 52 of the second end cell unit 1Y of the upstream side that is connected to end cell unit 1Z via identifying information output line 51, be inverted as the LOW signal, to be imported in the ID input terminal ID_IN of the second end cell unit 1Y afterwards.Its result, the second end cell unit 1Y becomes identifying information and obtains pattern.And same, in step S7, the battery unit request communication to the minimum value with id information (ID=1), if response is arranged, increase No. ID, further request communication.At this, the end cell unit 1Z of ID=1 makes response.Therefore, make id information rise 1, to the battery unit request communication of ID=2.At this, owing to there not being such battery unit, therefore through after certain hour, can be overtime.Therefore, if overtime, the unit controls section 13 of the second end cell unit 1Y will be set as less than the ID=2 of response the id information of self.
In addition, return to step S5, repeatedly carry out same step, set successively id information from the battery unit 1 in downstream.In the example of Fig. 1, in the third terminal battery unit 1X that the upstream side with the second end cell unit 1Y is connected, after the execution identifying information is obtained pattern, as identifying information, set ID=3 equally.
Finally, if the id information of the first battery unit 1A be connected with master unit 2 is set, 2 output HIGH signals from identifying information output line 51 to master unit.If as the LOW signal, input to ID input terminal ID_IN after similarly reversing from the HIGH signal of identifying information input line 52 inputs, master unit 2 is identified as the ID setting end of all battery units 1.Thus, master unit 2 starts each battery unit 1 is carried out to MS master-slave communication.Can identify each battery unit 1 by id information.Communication mode can utilize the known communication modes such as RS-485.Master unit 2 can obtain the battery information (cell voltage, temperature, abnormal information etc.) of each battery unit 1.
Like this, under the state that is connected with many battery units 1, can be automatically each battery unit 1 be distributed to identification code, also can be cheap and carry out simply address setting by known method.In addition, can connect many battery units 1 and construct jumbo power-supply system.By adjusting number of connection, can adjust capacity, can construct neatly and the corresponding power-supply system of desired scale.In addition, whichever battery cell 11 abnormals, section can only change the battery unit that comprises abnormal battery cell 11, therefore also has advantages of and can cut down the required expense of battery of changing.
Each battery unit 1 is identical hardware configuration.Fig. 3 means the block diagram of each battery unit 1.Battery unit 1 shown in this figure 3 battery blocks 12 that have been connected in parallel, each battery block 12 is connected in series 13 battery cells 11 and forms.In addition, each battery block 12 can connect the temperature that detects battery cell 11 temperature sensor, detect the voltage sensor of the piece voltage of battery block 12.Temperature sensor can utilize thermistor etc.In addition, the current detecting part of the charging and discharging currents that detects battery unit 1 is set on the output line PL of the battery unit 1 be connected with a plurality of battery blocks 12, inputs to unit controls section 13.Unit controls section 13 is based on the temperature of battery cell 11, the piece voltage of battery block 12, detects the overcharging of battery block 12, overdischarge, if detect abnormal, to master unit 2 output abnormality signals.Master unit 2 is definite, and abnormal battery unit 1 has occurred, and to the abnormal generation of user report, and urges inspection and changes.
(battery cell 11)
In addition, preferably, the positive electrode of battery cell 11 is used the ferric phosphate based material.Thus, can improve fail safe, and the temperature dependency that can suppress to discharge and recharge, especially when low temperature, also can maintain higher efficiency for charge-discharge, therefore also can discharge and recharge efficiently in the winter time.
In addition, the positive pole of lithium rechargeable battery can be made as 3 kinds of composition positive poles.This lithium rechargeable battery utilizes Li-Ni-Mn-Co composite oxides and cobalt acid lithium to mix on positive pole, to replace existing cobalt acid lithium.This lithium rechargeable battery on positive pole except using lithium, also use the Ni-Mn-Co formed by 3 kinds of compositions, during therefore with high-voltage charge, thermal stability is high, the charging maximum voltage can be made as to 4.3V than highland, thereby capacity increasing.
But preferably, in the battery cell 11 used, the voltage during by charging is set as the voltage lower than the voltage that is judged as full charging consciously.For example, in the situation that use lithium rechargeable battery, under general condition, be near 4.2V, to be judged as full charging, but be set as, when 4V, be judged to be full charging.Thus, can realize the long lifetime of battery cell.
In addition, in above-mentioned example, prepared separately master unit, but also can replace, in battery unit 1, appended the function of the master unit 2 relevant to the processing of above-mentioned identifying information, thereby battery unit 1 work that makes to be connected to upstream side is master unit 2.
(industrial utilizability)
The identifying information establishing method of power-supply system of the present invention and power-supply system is suitable for home-use, the main equipment that charges to use by night electricity or solar battery panel with supply unit etc.
Symbol description
100... power-supply system
1... battery unit
1A... the first battery unit
1X... third terminal battery unit
1Y... the second end cell unit
1Z... end cell unit
2... master unit
3... terminal resistance
4... connector
5... cable
11... battery cell
12... battery block
13... unit controls section
14... isolator
15... photoelectrical coupler
31... terminating resistor
32... connect, detect resistor
41... upstream side connector
42... downstream connector
43... terminator terminating junctor
51... identifying information output line
52... identifying information input line
53... earth connection
54... pressure-wire
401... main ECU; 402... from ECU
PL... output line
TXD... send data terminal
RXD... receive data terminal
The ID_IN...ID input terminal
The ID_OUT...ID lead-out terminal
Claims (13)
1. a power-supply system, possess: master unit (2); A plurality of battery units (1), multiple spot connect into and on an end, connect above-mentioned master unit (2); And terminal resistance (3), being connected in another ends of a plurality of battery units (1) that above-mentioned multiple spot connects, above-mentioned power-supply system is characterised in that,
Each battery unit (1) possesses:
More than one battery block (12), a plurality of battery cells (11) of connecting and/or be connected in parallel;
Unit controls section (13), control above-mentioned battery unit (1): and
Pair of connectors (4), be connected with said units control part (13),
Each battery unit (1) is connected each other via connector (4) each other,
A connector (4) of the end cell unit (1Z) that is positioned at an end in a plurality of battery units (1) that above-mentioned multiple spot connects is connected with above-mentioned terminal resistance (3),
A connector (4) of the first battery unit (1A) that is positioned at another end in a plurality of battery units (1) that above-mentioned multiple spot connects is connected with above-mentioned master unit (2),
If above-mentioned master unit (2) starting, the unit controls section (13) of above-mentioned end cell unit (1Z) detects and is connected with above-mentioned terminal resistance (3), can set initial value as the identifying information for distinguishing with other battery units (1) to above-mentioned end cell unit (1Z)
The unit controls section (13) of the second end cell unit (1Y) be connected with above-mentioned end cell unit (1Z) will set the situation of identifying information as opportunity to above-mentioned end cell unit (1Z), to other battery units (1) inquiry, whether give identifying information, can set still unappropriated identifying information according to the response of this inquiry.
2. power-supply system according to claim 1, is characterized in that,
By above-mentioned terminal resistance (3), be connected with above-mentioned end cell unit (1Z), thereby obtain beginning to unit controls section (13) the indication identifying information of above-mentioned end cell unit (1Z).
3. power-supply system according to claim 1 and 2, is characterized in that,
Above-mentioned connector (4) comprises the identifying information input line (52) for exchange identifying information between each battery unit (1),
In each battery unit (1), above-mentioned identifying information input line (52) is electrically connected to said units control part (13),
Said units control part (13) constitutes: if the counter-rotating of the signal of above-mentioned identifying information input line (52) changes the identifying information of obtaining identifying information into and obtains pattern.
4. power-supply system according to claim 3, is characterized in that,
Above-mentioned connector (4) comprises the earth connection (53) be grounded,
Above-mentioned terminal resistance (3) possesses the terminator terminating junctor (43) be connected with above-mentioned connector (4),
Above-mentioned terminator terminating junctor (43) forms identifying information input line (52) and above-mentioned earth connection (53) ground connection via connecting detection resistor (32),
The unit controls section (13) of above-mentioned end cell unit (1Z) constitutes: be connected with above-mentioned end cell unit (1Z) by above-mentioned terminal resistance (3), thereby detect that identifying information input line (52) detects resistor (32) via above-mentioned connection and, after situation about being grounded, change identifying information into and obtain pattern.
5. power-supply system according to claim 4, is characterized in that,
Above-mentioned pair of connectors (4) is connected to the upstream side connector (41) of above-mentioned master unit (2) side and is connected to above-mentioned terminal resistance (3) side in above-mentioned multiple spot connects downstream connector (42) formation,
Above-mentioned identifying information input line (52) is included in above-mentioned downstream connector (42),
Above-mentioned upstream side connector (41) comprises between each battery unit (1), exchanging the identifying information output line (51) of identifying information,
The unit controls section (13) of above-mentioned end cell unit (1Z) can following work: obtain pattern if detect from the signal of the above-mentioned identifying information input line (52) in downstream and change identifying information into, from above-mentioned identifying information output line (51), whether be endowed identifying information to the second end cell unit (1Y) inquiry that is connected in upstream side, in addition
The second end cell unit (1Y) is in the situation that existence is connected in the third terminal battery unit (1X) of its upstream side, to this third terminal battery unit (1X) inquiry, whether be endowed identifying information equally, by repeatedly carrying out such inquiry action, can whether be endowed identifying information to all battery units (1) inquiry, and
Being in identifying information obtains the end cell unit (1Z) of pattern and constitutes: according to the identifying information returned accordingly with inquiry, the minimum value of not giving in the value of the identifying information that can obtain is set as the identifying information of self, and finish identifying information and obtain pattern, in addition
Be received in end cell unit (1Z) and set the situation of identifying information, the the second end cell unit (1Y) be connected with this end cell unit (1Z) changes too identifying information into and obtains pattern and can set identifying information, by repeatedly carrying out this step, all battery units (1) can be set identifying information successively.
6. power-supply system according to claim 5, is characterized in that,
The battery unit (1) that is arranged in downstream is with adjacent with this battery unit (1) and be positioned at being connected of battery unit (1) of upstream side, the identifying information output line (51) that the upstream side connector (41) of above-mentioned downstream battery unit (1) comprises is connected with the identifying information input line (52) that the downstream connector (42) of above-mentioned upstream side battery unit (1) comprises
If the unit controls section (13) of above-mentioned downstream battery unit (1) obtains identifying information and finishes identifying information and obtain pattern under identifying information is obtained pattern, from the identifying information output line (51) of upstream side connector (41), export the LOW signal
The unit controls section (13) of above-mentioned upstream side battery unit (1) detects the LOW signal of the identifying information input line (52) of the downstream connector (42) be connected with this identifying information output line (51), obtains pattern thereby change identifying information into.
7. power-supply system according to claim 6, is characterized in that,
Above-mentioned master unit (2) constitutes; If the LOW signal from the identifying information output line (51) of the first battery unit (1A) be connected with this master unit (2) detected, be judged to be in all battery units (1) and set identifying information, and master unit (2) self is set to identifying information.
8. according to the described power-supply system of any one in claim 1 to 7, it is characterized in that,
The initial value of the identifying information that above-mentioned end cell unit (1Z) is given is 0 or 1, and identifying information is added to 1 and set to the next stage battery unit (1) be connected with this above-mentioned end cell unit (1Z) successively.
9. according to the described power-supply system of any one in claim 5 to 8, it is characterized in that,
The unit controls section (13) of above-mentioned battery unit (1) obtains in pattern from above-mentioned identifying information output line (51), whether the second end cell unit (1Y) inquiry that is connected in upstream side to be endowed to identifying information within a certain period of time at identifying information, if passed through this certain hour, according to the identifying information returned accordingly with inquiry in this moment, the minimum value of not giving in the value of the identifying information that can obtain is set as the identifying information of self, finishes identifying information and obtains pattern.
10. the identifying information establishing method of a power-supply system, above-mentioned power-supply system has connected: master unit (2); A plurality of battery units (1), be connected with above-mentioned master unit (2) multiple spot; And terminal resistance (3), it is connected with the ora terminalis of above-mentioned master unit (2) opposition side in the ora terminalis of a plurality of battery units (1), above-mentioned identifying information establishing method is for distinguishing each battery unit (1) in above-mentioned power-supply system, above-mentioned identifying information establishing method is characterised in that, comprising:
Start the operation of above-mentioned master unit (2);
The end cell unit (1Z) be connected with above-mentioned master unit (2) detects and is connected with above-mentioned terminal resistance (3), and the operation of initial value as the identifying information for other battery units (1) difference set in above-mentioned end cell unit (1Z);
The situation of identifying information will have been set as opportunity to above-mentioned end cell unit (1Z) in the second end cell unit (1Y) be connected with above-mentioned end cell unit (1Z); to other battery units (1) inquiry, whether be endowed identifying information; according to the response of this inquiry, set the still operation of unappropriated identifying information; And
The n battery unit (1) be connected with above-mentioned the second end cell unit (1Y) in the situation that exist, carry out above-mentioned operation repeatedly, the operation of giving identifying information to all battery units (1).
11. the identifying information establishing method of power-supply system according to claim 10, is characterized in that,
The minimum value that unit controls section (13) setting of above-mentioned end cell unit (1Z) can obtain is as the initial value of identifying information.
12. the identifying information establishing method of power-supply system according to claim 11, is characterized in that,
Each battery unit (1) is as the default value of identifying information and be endowed the maximum that can obtain.
13. the identifying information establishing method of power-supply system according to claim 12, is characterized in that,
Each battery unit (1) constitutes: do not possess be used to preserving the nonvolatile memory of identifying information, if deenergization reverts to default value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-053603 | 2011-03-10 | ||
| JP2011053603 | 2011-03-10 | ||
| PCT/JP2011/079132 WO2012120745A1 (en) | 2011-03-10 | 2011-12-16 | Power supply system and identification information setting method for power supply system |
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|---|---|
| CN103415976A true CN103415976A (en) | 2013-11-27 |
| CN103415976B CN103415976B (en) | 2016-11-30 |
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| CN109428128A (en) * | 2017-08-25 | 2019-03-05 | 加百裕工业股份有限公司 | Battery management system |
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Also Published As
| Publication number | Publication date |
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| WO2012120745A1 (en) | 2012-09-13 |
| JPWO2012120745A1 (en) | 2014-07-07 |
| JP5902149B2 (en) | 2016-04-13 |
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Effective date of registration: 20230901 Address after: Osaka, Japan Patentee after: Panasonic New Energy Co.,Ltd. Address before: Japan's Osaka Moriguchi city Beijing Sakamoto 2 D eyes 5 times 5 Patentee before: Sanyo Electric Co.,Ltd. |