CN105874816A - Method for starting a battery management system - Google Patents
Method for starting a battery management system Download PDFInfo
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- CN105874816A CN105874816A CN201480072714.1A CN201480072714A CN105874816A CN 105874816 A CN105874816 A CN 105874816A CN 201480072714 A CN201480072714 A CN 201480072714A CN 105874816 A CN105874816 A CN 105874816A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40032—Details regarding a bus interface enhancer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5092—Address allocation by self-assignment, e.g. picking addresses at random and testing if they are already in use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a method for starting a battery management system (1) comprising at least one main controller (2) and a number of module controllers (6-1, 6-2,...6-n) which are connected to one another via a first and a second communication channel. The first communication channel (5) has a databus structure, and the second communication channel has a point-to-point structure. The method has the following method steps: transmitting at least one start signal for the module controllers (6-1, 6-2,... 6-n) on the second communication channel by means of the main controller (2), ascertaining a distinct identifier after each module controller (6-1, 6-2,... 6-n) has received the start signal, transmitting the ascertained distinct identifier on the first communication channel (5) by means of each module controller (6-1, 6-2,... 6-n), receiving the identifiers on the first communication channel (5) by means of the main controller, and checking the number and sequence of the received identifiers by means of the main controller (2). The invention further relates to a computer program, a battery management system (1), a battery, and a motor vehicle which are designed to carry out the method.
Description
Technical field
The present invention relates to the method for starting the batteries management system with at least one master control equipment and multiple module control equipment, described master control equipment and module are controlled equipment and are connected with each other by the first and second communication channels, and wherein said first communication channel has data bus structure and described second communication channel has point-to-point structure.
Additionally, the present invention relates to be configured for performing the computer program of described method, batteries management system, set of cells and motor vehicles.
Background technology
Control electronics is used the most more and more in automotive field, and its example is device for controlling engine and the control equipment for ABS or air bag.For electrically driven vehicles, current research emphasis is that exploitation has affiliated batteries management system, i.e. controls the battery pack that the power of equipment is high, and described batteries management system is equipped with being used for monitoring the functional software of set of cells.Batteries management system especially ensures used battery cell and the safety of battery pack and reliable function.Described batteries management system monitors and controls each battery and/or the electric current of whole battery pack, voltage, temperature, insulation resistance and other parameter.Being capable of management function by means of these parameters, described management function improves the life-span of battery pack system, reliability and safety.
Batteries management system is made up of lots of control equipments, and single software functionality is run on described control equipment.Here, the distribution depended on the quantity of battery cell, the quantity of sensor and the battery module different structure space (Bauraum) in vehicle draws the control equipment topology controlling equipment for directly detecting the module of measurement data at each battery module with master control equipment and multiple subordinate.The data detected between control equipment by communication channel, such as exchanged by data/address bus, such as CAN.Battery module and affiliated module owing to using high quantity control equipment, and measurement data height is passed to master control equipment the most over the communication channels.Measure frequency typically to be limited by the characteristic of communication channel, the quantity such as by the bandwidth on data/address bus and by battery module.
In order to control equipment and the swapping data of master control equipment in module, it has to be possible to data are assigned specifically to module and control equipment.Required for this clear and definite identifier, described identifier be not only stored in master control equipment and also be stored in relevant module control equipment and by means of described identifier can in battery pack clearly assignment module control equipment position.
The known batteries management system with master control equipment and multiple module control equipment from WO 2012/060755, wherein in the case of master control equipment identifies a new node, described master control equipment controls one clear and definite mark of device assignment to new module.The assignment order ground of identifier is carried out.When controlling devices dispatch identifier to the first module, master control equipment sends signal: described master control equipment is ready to be received in complex another module control equipment.The most disadvantageously, identifier is again assigned when system starts every time.Therefore, identifier may be differently distributed by system for restarting of system every time so that distribution must be the most tracked.
US
2012/268069 illustrates the method for assigning identifier, and wherein point to point network is used.Each trigger another at this from control equipment from control equipment.
US
2011/273023 illustrates the method for assigning identifier in batteries management system, and wherein master control equipment transmitting (absetzen) is for assigning the first inquiry of identifier, launches second inquiry etc. after obtaining the response of the first module control equipment.
Summary of the invention
Advantages of the present invention
According to present invention provide that a kind of method for starting the batteries management system with at least one master control equipment and multiple module control equipment, described master control equipment and module are controlled equipment and are connected with each other by the first and second communication channels, wherein said first communication channel has data bus structure and described second communication channel has point-to-point structure, and described method has a method step subsequently:
A) in described second communication channel, controlled equipment for described module by described master control equipment and send at least one enabling signal,
B) controlled equipment by each module after receiving described enabling signal, determine the identifier of self,
C) identifier of self determined by each module control equipment sends on described first communication channel,
D) on described first communication channel, described identifier is received by described master control equipment, and
E) identifier received by described master control equipment inspection quantity and order.
Control equipment in module described in step a) to be activated continually by the enabling signal from described master control equipment.Alternatively it can be stated that described master control equipment launches only one enabling signal and described module controls equipment and is configured for after starting described enabling signal sends to other module control equipment.
The identifier arrived on first communication channel is checked by master control equipment in step e).If the quantity of the identifier arrived at and order are correct, then can be from correct system start-up.The method introduced is in view of speed is optimised and allows to use in batteries management system, and described batteries management system is premised on the startup of time-critical.Particularly advantageously, method step a), b), c) and d) equipment can be controlled about different module and run with being mutually linked, making master control equipment control equipment for other module in described second communication channel in step a) and send enabling signal, the identifier sent on first communication channel via other module control equipment is received by master control equipment.But, following situation can also be there is equally: before the module control equipment that such as have sent enabling signal for it sends back the identifier of self in step c) on first communication channel, master control equipment controls equipment for module in the second communication channel in step a) and sends other enabling signal.
According to one preferred embodiment, the inspection in step e) draws and implements method step subsequently in the case of just what a identifier is vicious:
F) controlled equipment to the module with vicious identifier new identifier assignment by master control equipment.
For the situation of the start-up course not carrying out following optimum, identifiers whole in the start-up course of described optimum is distributed clearly and error-free, therefore regulation: mistake is corrected by master control equipment, without whole identifier is reassigned.
This such as relates to following situation: module controls equipment to be had vicious memorizer and is no longer able to correctly read its identifier.In another situation, module controls equipment and such as may be replaced and also not have effective identifier.In both cases, relevant module controls equipment will send back standard identifier, such as 0xFF, and therefore signal defective memorizer or factory's setting.
First communication channel or its communication protocol are preferably set up so that each module controls equipment and only reacts the message of the identifier for self.Controlled equipment to the module with vicious identifier new identifier assignment by master control equipment in step f) therefore can advantageously carry out on first communication channel.The module control equipment with effective identifier abandons this message, because described module controls the receiver that equipment is not message.The content of this message such as may is that " module with identifier 0xFF controls the effective identifier CSC2 that equipment acquisition is new ".
According to one preferred embodiment, method step subsequently is carried out:
G) controlled equipment by each module on first communication channel, receive strange identifier,
H) by each module control equipment by the strange identifier that received with determined by compared with self identifier, and
I) being controlled equipment by each involved module makes enumerator be incremented by for any situation that the identifier received is consistent with the identifier of self.
When in step c) by each module control equipment send on first communication channel determined by self identifier time can this message be such as marked as to the message of all users, in order to any one module that message is not controlled in equipment by other module controls equipment and abandons.Because first communication channel has bus structures, described bus structures comprise available information for whole module control equipment, as long as it has been actuated while that just can receive other module in start-up course controls the identifier of equipment so whole modules controls equipment.Increase in step i) Counter is used for: controlling, for multiple modules, the situation that the identical identifier of equipment utilization proves the identity of oneself, the clear and definite addressing on first communication channel is possible.
According to a kind of improvement project of this embodiment, the inspection in step e) show that multiple identifier implements method step subsequently in the case of wrong:
I) being controlled equipment to the module with vicious identifier multiple identifier assignments by master control equipment, the addressing of the module control equipment wherein with vicious identifier is carried out by means of enumerator.
Therefore, the situation that described method must be assigned again for more than one identifier provides rollback aspect (R ü ckfallebene).Assigned new identifier to be carried out by enumerator clearly by master control equipment.The transmission of message can be carried out the most again on first communication channel.Described method is therefore also for this situation regulation not carrying out following optimum start-up course: mistake is corrected by master control equipment, without whole identifier is reassigned, identifiers whole in the start-up course of described optimum is distributed clearly and error-free.
According to one preferred embodiment, after being given the module control equipment with vicious identifier by master control equipment by one or more new identifier assignments, carry out the second inspection of all identifiers.Thus cover following situation: the measure implemented so far is not enough to successfully start system.
For the situation that mistake in the second inspection of identifier is identified, preferably it is identified the continuous print of symbol by master control equipment and individually assigns.Control equipment for this each module to be activated continuously and individually.Master control equipment controls the identifier that device assignment is clear and definite to each module.After the assignment of identifier to the first module control equipment terminates, just start next module control equipment.The linking of the assignment of identifier and the enforcement that hence speeds up therefore be impossible.This processing mode is only just employed when occurring the grave error such as caused by the defect of the hardware used when assigning.In faultless system, the method introduced has described advantage enduringly.
In addition propose a kind of computer program according to the present invention, according to described computer program, when described computer program is carried out on programmable computer installation, method as described herein is performed.Described computer program such as could be for realizing batteries management system or for realizing the module of the startup program of the batteries management system for vehicle.Described computer program can be stored on machinable medium, such as it is stored on permanent or rewritable storage medium, or when distributing to computer installation, such as, it is stored in pocket memory, as on CD-ROM, DVD, USB rod or storage card.Adjunctively or alternatively in this, described computer program can computer installation, such as on server or Cloud Server such as by data network, as the Internet or communication connection, such as telephone line or wireless connections be provided for download.
A kind of batteries management system (BMS) is provided in addition according to the present invention, described batteries management system is configured for performing one of described method, described batteries management system has at least one master control equipment and multiple module controls equipment, described master control equipment and module are controlled equipment and are connected with each other by the first and second communication channels, and wherein said first communication channel has data bus structure and described second communication channel has point-to-point structure.
Each module controls equipment and preferably has for by strange identifier device with the identifier of self compared be used for the device making enumerator be incremented by, wherein for make device that enumerator is incremented by with for strange identifier device compared with the identifier of self is coupled.
Term " set of cells " and " battery assembly module " are used for accumulator or secondary battery unit in this manual in the way of suitable with common language usage.Set of cells preferably includes one or more battery assembly module, and described battery assembly module can have battery cell, battery module, module branch road or battery pack.Battery cell is the most spatially combined at this and is connected with each other on circuit engineering, the wiring of such as serial or parallel is module.Multiple modules can form the direct transducer of so-called set of cells (BDC, Battery Direct Converter), and the direct transducer of multiple set of cells forms set of cells direct converter (BDI, Battery Direct Inverter).
In addition provide the motor vehicles with this set of cells according to the present invention, wherein said set of cells is connected with the drive system of motor vehicles.Described method is preferably applied in electrically driven vehicles, carries out the connection of a large amount of battery cells for providing required driving voltage in described vehicle.
Accompanying drawing explanation
Embodiments of the invention are illustrated in the accompanying drawings and are explained further in the description that follows.
Fig. 1 illustrates the first schematic diagram of batteries management system,
Fig. 2 illustrates the second schematic diagram of batteries management system,
Fig. 3 illustrates the schematic diagram of steps of a method in accordance with the invention,
Fig. 4 illustrates a schematic diagram of the possible start-up course of the batteries management system according to the present invention,
Fig. 5 illustrates another schematic diagram of the possible start-up course of the batteries management system according to the present invention,
Fig. 6 illustrates another schematic diagram of the possible start-up course of the batteries management system according to the present invention,
Fig. 7 illustrates another schematic diagram of the possible start-up course of the batteries management system according to the present invention, and
Fig. 8 illustrates another schematic diagram of the possible start-up course of the batteries management system according to the present invention.
Detailed description of the invention
Batteries management system 1 in Fig. 1 includes being referred to as BCU(Battery Control
Unit(set of cells control unit) master control equipment 2 and multiple battery module 4, described battery module be respectively provided with self module control equipment 6-1,6-2 ... 6-n, described module control equipment be also referred to as CMC(Cell Module
Controller(battery module controller).Be assigned the battery assembly module 8 with usual multiple battery cell to each battery module 4, wherein these battery cells are concatenated to and the most in parallel, in order to utilize battery pack system to obtain required power data and energy datum.Each battery cell e.g. has the Li-ion batteries piles of the voltage range of 2.8 to 4.2 volts.Master control equipment 2 and module control equipment 6-1,6-2 ... the communication between 6-n is by first communication channel 5, such as carry out by CAN and suitably interface 10,12.
Fig. 2 illustrates another schematic diagram of the batteries management system 1 in Fig. 1.Batteries management system 1 in Fig. 2 includes the most again master control equipment 2 and multiple battery module 4, and described battery module has module and controls equipment 6-1,6-2 ... 6-n.It is assigned battery assembly module 8 to each battery module 4.Master control equipment 2 and module control equipment 6-1,6-2 ... the communication between 6-n is carried out by first communication channel 5 and suitable interface 10,12 and by the second communication channel 7 with suitable interface 9,11.
Second communication channel 7 can also be referred to as (Power_On) signal line that powers within the scope of this invention.Second communication channel 7 includes controlling the signal line of equipment 6-1 from master control equipment the 2 to the first module, then controlling equipment 6-1 to second module another signal line controlling equipment 6-2 etc. from the first module until last module controls equipment 6-n.The signal line of the second communication channel 7 is controlled equipment by corresponding source and controls, the most such as controlled by the first module control equipment 6-1 in the case of the signal line controlling equipment 6-1 to second module control equipment 6-2 from the first module.Master control equipment 2 can only in turn switch on module continuously and control equipment 6-1 ... 6-n.Connect the such as second module targetedly to be controlled equipment 6-2 to be impossible in the configuration by master control equipment 2, because being not provided with controlling equipment 6-1,6-2 from master control equipment 2 to each individual module ... each hardware circuit of 6-n.
Fig. 3 is shown in a schematic diagram of state possible when starting batteries management system 1, and described batteries management system is described about Fig. 1 and 2 the most.First state 14 is referred to as the start-up course of optimum.There is module and control equipment 6-1,6-2 in quantity and order according to the identifier received from master control equipment 2 in the first state 14 ... the effective checking of the identifier of 6-n.If an identifier being identified as mistake by master control equipment 2 in first step S1, then batteries management system 1 proceeds to the second state 16 from the first state 14.In the second state 16, identifier is assigned again.If one other identification symbol is identified as mistake in second step S2, the most described system proceeds to the third state 18 from the second state 16.In the third state 18, more than one identifier is assigned again.If confirming that in third step S3 the most again assigning of identifier is required, the most described system proceeds in the 4th state 20, and in described 4th state, all identifiers are assigned again.Therefore, according to appearance (Auspr gung), i.e. one, multiple or all module control equipment 6-1, the 6-2 of interference ... whether 6-n has defect to take different measures, in order to module controls equipment 6-1,6-2 ... the clear and definite identification of 6-n is possible.It is possible that batteries management system 1 the most directly confirms the 4th state 20 so that described system directly proceeds to the 4th state 20 from the first state 14.Such as such when situation when starting first carrying out batteries management system 1.In the case, whole modules controls equipment 6-1,6-2 ... 6-n can be programmed with standard identifier in factory side.
Fig. 4 illustrates a schematic diagram of the possible start-up course of the batteries management system 1 according to the present invention.Schematically illustrate master control equipment 2 in the diagram and five modules control equipment 6-1 ... the communication between 6-5.In step s 5, master control equipment 2 is the most not shown by the second communication channel 7() send enabling signal 22, such as " Start CSC1(starts CSC1) ".Because there is master control equipment 2 to be controlled the only one connection of equipment 6-1 by second communication channel the 7 to the first module, so this signal is clear and definite so that the first module control equipment 6-1 in step s 6 by being stored identifier 23 in the nonvolatile memory, such as " ID CSC1 " sends back master control equipment 2.Nonvolatile memory can be such as so-called EEPROM(Electrically
Erasable Programmable Read-Only Memory (Electrically Erasable Read Only Memory), i.e. non-volatile electronic store assembly, and its information stored can be deleted by electricity.
Master control equipment 2 sends another enabling signal 22 such as with message " Start CSC2(starts CSC2) " in another step S5, the most also sends another enabling signal.The most repeatedly, the enforcement of step S5 is i.e. shown individually for each enabling signal 22.Should be readily appreciated that, only one enabling signal 22 can also be sent by master control equipment 2, described enabling signal can be by controlling equipment 6-1 about the circuit described by Fig. 2 from each module, 6-2, ... 6-n sets out and is forwarded to next module control equipment 6-1,6-2 ... 6-n so that these modules control equipment and sequentially trigger.
Draw: in step s 5 enabling signal 22 in the second communication channel 7 send and the identifier 23 transmission on first communication channel 5 runs with being mutually linked in step s 6.Such as, after master control equipment 2 has been received by the identifier 23 " ID CSC1 " that the first module controls equipment 6-1 in step s 6 on first communication channel 5, described master control equipment just sends enabling signal 22 " Start
CSC4(starts CSC4) ".
Master control equipment 2 checks the correctness of identifier 23 in the step s 7.Described inspection is carried out only according to quantity and the order of the identifier 23 received.If the quantity of the identifier arrived at 23 and order are correct, then batteries management system 1 is as about being in described in Fig. 3 in the first state 14.
Fig. 5 illustrates another example of the start-up course of the batteries management system 1 according to the present invention, and wherein said example illustrates as about the transition from first state the 14 to the second state 16 described by Fig. 3.Control to communicate between equipment 6-1,6-2,6-3 at master control equipment 2 and three modules in the embodiment illustrated.As described with respect to fig. 4, step S5 and S6 carry out enabling signal 22 and the transmission of identifier 23.Carry out the inspection of received identifier 23 in the step s 7.
Assuming that: it is defective that the second module controls equipment 6-2, and the most described second module controls equipment to be had vicious eeprom memory and is no longer able to correctly read its identifier 23.In the case, the identifier 23 in the eeprom memory of the second module control equipment 6-2 it is stored in corresponding to standard identifier (so-called acquiescence ID), such as " 0xFF ".The inspection in the step s 7 of second identifier 23 is identified as mistake.Give in step s 8 and be identified as the identifier 23 that the control equipment 6-2 appointment of defective module is new.In step s 9, new identifier 23 is sent by first communication channel 5.If defective module controls equipment 6-2 such as with " ID
0xFF carrys out response enabling signal 22, then the content of the message sent by first communication channel 5 e.g. " CSC mit ID 0xFF bekommt ID CSC2(has the CSC of ID 0xFF and obtains ID CSC2) ".Because each module controls equipment 6-1, the message of the identifier 23 for self only reacted by 6-2,6-3, thus first and three module control equipment 6-1,6-3 will abandon described message and only the second module control equipment 6-2 and will receive described message.In step 10, module controls equipment 6-2 and accepts new identifier 23 " CSC2 ".
Describe a kind of possible startup method of the batteries management system 1 according to the present invention about Fig. 6, described batteries management system is as arrived in the third state 18 about described in Fig. 3.Control to communicate between equipment 6-1,6-2,6-3 at master control equipment 2 and three modules the most again.As about described in Figure 4 and 5, first carried out the transmission of enabling signal 22 in corresponding communication channel 5,7 in step s 5 and be identified according with the transmission of 23 in step s 6.Assuming that: in shown example, the second module controls equipment 6-2 and three module controls equipment 6-3 and do not has effective identifier.Two modules control equipment 6-2,6-3 and send back identical identifier 23, such as standard identifier " 0xFF ".In step s 11, the module that have sent identifier 23 controls the strange identifier 23 of equipment 6-2,6-3 reception, the most described module controls equipment and reads strange identifier together.These modules control equipment 6-2 in step s 12,6-3 by the strange identifier that received with determined by compared with self identifier 23, and confirm that at this another module controls whether equipment sends the identifier 23 consistent with the identifier 23 sent of self.For any situation that the identifier 23 received is consistent with the identifier 23 of self, involved module controls equipment 6-1, and 6-2,6-3 make enumerator be incremented by.In shown example, three module controls equipment 6-3 and reads the message of other invalid identifier not together, because it is that the last vicious module being activated controls equipment 6-3 that described three module controls equipment.The penultimate vicious module being activated controls equipment 6-2 and reads the message with identifier 23 together, and described identifier is consistent with the identifier 23 of self.Although the first module controls equipment 6-1 will read two invalid identifiers 23 together, but does not make enumerator be incremented by, because described invalid identifier is inconsistent with the identifier 23 of self.
It is currently capable of being addressed clearly by master control equipment 2 by means of enumerator and there is the module of invalid identifier 23 controls equipment 6-2,6-3.In the inspection S7 of identifier 23, show that two identifiers 23 are vicious.Described system is thus in the third state 18, and the described third state is described about Fig. 3 and more than one identifier 23 must be assigned again in the described third state.The newest identifier 23 is assigned to vicious module and controls equipment, such as " CSC
Mit Z hler=0: CSC erh lt ID CSC3(has the CSC of enumerator=0:CSC and obtains ID CSC3) " and " CSC mit Z hler=
1:CSC erh lt ID CSC2(has the CSC of enumerator=1:CSC and obtains ID CSC2) ".These information are sent by first communication channel 5 in step s 9 so that described information is provided to whole modules and controls equipment 6-1,6-2,6-3.The module only with vicious identifier 23 and correct meter reading controls equipment 6-1, and 6-2,6-3 will receive message in step S14, because described module controls the equipment identification message for oneself, and accepts new identifier 23 in step slo.
Fig. 7 illustrates that having five modules controls equipment 6-1, the more complicated example of 6-2,6-3,6-4,6-5, and described module controls equipment as communicated with master control equipment 2 by two communication channels 5,7 about described in earlier figures.Enabling signal 22 is sent to module control equipment 6-1 by master control equipment 2 in step s 5 ..., 6-5, and module controls equipment 6-1 in step s 6 ..., 6-5 sends its identifier 23 on first communication channel 5.Assuming that: module controls equipment 6-2,6-3 and 6-4 and has invalid identifier 23.When three module control equipment 6-3 sends its identifier 23, this identifier is controlled equipment 6-2 by the second module and receives in step s 11 and in step s 12 compared with the identifier 23 of self.Second module controls equipment 6-2 then makes its enumerator be incremented by.Controlling after equipment 6-4 sends its identifier 23 in the 4th module, this identifier is controlled equipment 6-2,6-3 by second and three module and receives in step s 11 and in step s 12 compared with self identifier 23 corresponding.Second and three module control equipment 6-2,6-3 then makes its enumerator be incremented by.Inspection in the step s 7 draws in master control equipment 2: three identifiers 23 are vicious and consistent with each other.Described system is thus in about in the third state 18 described by Fig. 3.In step s 8 new identifier 23 is assigned to the second module and controls equipment 6-2, be assigned to have vicious designator 23 the most in the case and module that meter reading is 2 controls equipment 6-2.In step s 9 new identifier 23 is sent to all of module by first communication channel 5 and controls equipment 6-1 ... 6-5.Only the second module control equipment 6-2 will receive message in step S14, because described second module controls the equipment identification message for oneself, and accept new identifier 23 in step slo.Control equipment 6-3, i.e. have vicious identifier 23 and module that meter reading is 1 controls equipment 6-3 and assigns new identifier 23 in another step S8 three module.In step s 9 new identifier 23 is sent to all of module by first communication channel 5 and controls equipment 6-1 ... 6-5.Only three module control equipment 6-3 will receive message in step S14, because described three module controls the equipment identification message for oneself, and accept new identifier 23 in step slo.Carry out new identifier 23 similarly and control the assignment of equipment 6-4 to the 4th module.In step s 13, because described system is in the third state 18 requiring the most again to assign identifier 23, so for safety by module is controlled equipment 6-1 ... the inquiry again of 6-5 is checked: all identifiers 23 are the most correctly assigned.
Fig. 8 illustrates that identifier 23 controls equipment 6-1, the allocating method of the order between 6-2,6-3 at master control equipment 2 and three modules, and wherein this allocating method divergence ground runs.When during described system is in about the 4th state 20 described by Fig. 3, the embodiment shown in fig. 8 of start-up course such as can be set.Such as can have confirmed that the failure of the assignment of identifier 23 in about the second inspection S13 described by Fig. 7.About the failed reason of Fig. 4 to one of the flow process described by 7 for instance it can be possible that the reading together in step 11 have failed.It is also likely to be, controls equipment by new module and substituted for module control equipment 6-1 ... 6-n, wherein said new module controls equipment and has effective identifier 23, and described effective identifier is assigned the most in the system.Being also likely to be, two modules that substituted in batteries management system 1 control equipment 6-1 ... 6-n.Master control equipment 2 confirms on startup: two effective identifiers 23 are not passed with correct order.Here it is identified according with 23 the most again assign equally advantageously according to Fig. 8.
In the case of being performed the continuous print of identifier 23 according to Fig. 8 by master control equipment 2 and individually assigning, only when the first module control equipment 6-1 transmits its identifier 23 the most, another enabling signal 22 just can be sent to the second module and control equipment 6-2 by master control equipment 2.Only when its identifier 23 is sent to master control equipment 2 by the second module control equipment 6-2 the most, another enabling signal 22 is sent to three module and controls equipment 6-3 by master control equipment 2 the most in step s 5.In the case of other (unshowned) module control equipment, described method is run similarly.
The invention is not restricted to embodiment as described herein and the aspect emphasized wherein.More precisely, by within the scope of illustrated by claim, a large amount of change being positioned in those skilled in the art's process range is possible.
Claims (11)
1. the method being used for starting batteries management system (1), described batteries management system has at least one master control equipment (2) and multiple module controls equipment (6-1,6-2, ... 6-n), described master control equipment and module control equipment by the first and second communication channels (5,7) being connected with each other, wherein said first communication channel (5) has data bus structure and described second communication channel (7) has point-to-point structure, and described method has a method step subsequently:
A) by described master control equipment (2) on described second communication channel (7) for described module control equipment (6-1,6-2 ... 6-n) send (S5) at least one enabling signal (22),
B) by each module control equipment (6-1,6-2 ... 6-n) after receiving described enabling signal (22), determine self identifier (23),
C) by each module control equipment (6-1,6-2 ... 6-n) send the identifier (23) of self determined by (S6) described first communication channel (5) is upper,
D) by described master control equipment (2) at the upper described identifier (23) that receives of described first communication channel (5), and
E) checked, by described master control equipment (2), the quantity of identifier (23) and order that (S7) received.
Method the most according to claim 1, it is characterised in that the inspection in step e) draw an identifier (23) vicious in the case of method step subsequently be carried out:
F) by described master control equipment (2) new identifier (23) assigned (S8) to the module with vicious identifier control equipment (6-1,6-2 ... 6-n).
3. according to the method one of aforementioned claim Suo Shu, it is characterised in that method step subsequently is carried out:
G) by each module control equipment (6-1,6-2 ... 6-n) receive the identifier (23) that (S11) is strange described first communication channel (5) is upper,
H) by each module control equipment (6-1,6-2 ... 6-n) by the strange identifier that received with determined by compared with self identifier (23) (S12), and
I) by each involved module control equipment (6-1,6-2 ... 6-n) make enumerator incremental for any situation that the identifier (23) received is consistent with the identifier of self (23).
Method the most according to claim 3, it is characterised in that the inspection in step e) draw multiple identifier (23) vicious in the case of method step subsequently be carried out:
J) (S8) is assigned to control equipment (6-1 to the module with vicious identifier (23) multiple identifiers (23) by described master control equipment (2), 6-2, ... 6-n), the module wherein with vicious identifier (23) controls equipment (6-1,6-2 ... 6-n) addressing carry out by means of described enumerator.
5. according to the method one of aforementioned claim Suo Shu, it is characterized in that, by described master control equipment (2), the one or more modules being assigned to have vicious identifier (23) in new identifier (23) are being controlled equipment (6-1,6-2 ... 6-n) after carry out all of identifier (23) second inspection (S13).
Method the most according to claim 5, it is characterised in that performed the continuous print of described identifier (23) by described master control equipment (2) in the case of mistake is identified in the second inspection of described identifier (23) and individually assign.
7., for performing the computer program according to one of the method one of aforementioned claim Suo Shu, wherein said computer program is carried out on programmable computer installation.
8. for performing the batteries management system (1) according to one of the method one of claim 1 to 6 Suo Shu, described batteries management system has at least one master control equipment (2) and multiple module controls equipment (6-1,6-2, ... 6-n), described master control equipment and module control equipment by the first and second communication channels (5,7) being connected with each other, wherein said first communication channel (5) has data bus structure and described second communication channel (7) has point-to-point structure.
Batteries management system the most according to claim 8 (1), it is characterized in that, each module controls equipment (6-1,6-2, ... 6-n) have for by the strange identifier (23) device compared with the identifier of self (23) with for the device making enumerator be incremented by, the wherein said device for making enumerator be incremented by with described for the strange identifier (23) device compared with the identifier of self (23) is coupled.
10. there is the set of cells of batteries management system (1) according to claim 8 or claim 9.
11. motor vehicles with set of cells according to claim 10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014200321.0 | 2014-01-10 | ||
| DE102014200321.0A DE102014200321A1 (en) | 2014-01-10 | 2014-01-10 | Method for starting a battery management system |
| PCT/EP2014/079446 WO2015104204A1 (en) | 2014-01-10 | 2014-12-30 | Method for starting a battery management system |
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| Publication Number | Publication Date |
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| CN105874816A true CN105874816A (en) | 2016-08-17 |
| CN105874816B CN105874816B (en) | 2019-09-03 |
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| CN201480072714.1A Active CN105874816B (en) | 2014-01-10 | 2014-12-30 | Method for starting batteries management system |
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| KR (1) | KR20160106064A (en) |
| CN (1) | CN105874816B (en) |
| DE (1) | DE102014200321A1 (en) |
| WO (1) | WO2015104204A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883858A (en) * | 2019-05-03 | 2020-11-03 | 大众汽车有限公司 | Battery pack unit and communication method in battery pack unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102017212960A1 (en) * | 2017-07-27 | 2019-01-31 | Robert Bosch Gmbh | Calibration method for a current measuring system |
| DE102017212966A1 (en) * | 2017-07-27 | 2019-01-31 | Robert Bosch Gmbh | Calibration method for a current measuring system |
| GB2579233A (en) | 2018-11-27 | 2020-06-17 | Edwards Ltd | A method relating to controllers of a vacuum pumping and/or abatement system |
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| CN103155344A (en) * | 2010-10-11 | 2013-06-12 | 株式会社Lg化学 | Method and system for setting up sequential ids for multiple slaves of a battery pack |
| WO2013125850A1 (en) * | 2012-02-20 | 2013-08-29 | 주식회사 엘지화학 | System and method for allocating identifier to multi-bms |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3581825B2 (en) * | 2000-09-28 | 2004-10-27 | 日立ホーム・アンド・ライフ・ソリューション株式会社 | Power storage device |
| WO2005033812A1 (en) * | 2003-10-06 | 2005-04-14 | Mitsubishi Denki Kabushiki Kaisha | Sequence control device |
| JP4796119B2 (en) | 2008-12-09 | 2011-10-19 | 三菱重工業株式会社 | Battery device |
| WO2012060755A1 (en) | 2010-11-05 | 2012-05-10 | Alelion Batteries Ab | Battery module system and method for initialising battery modules |
| KR102210890B1 (en) * | 2013-06-05 | 2021-02-02 | 삼성에스디아이 주식회사 | Battery management system, and method of managing the same |
-
2014
- 2014-01-10 DE DE102014200321.0A patent/DE102014200321A1/en active Pending
- 2014-12-30 CN CN201480072714.1A patent/CN105874816B/en active Active
- 2014-12-30 KR KR1020167017864A patent/KR20160106064A/en not_active Application Discontinuation
- 2014-12-30 WO PCT/EP2014/079446 patent/WO2015104204A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103155344A (en) * | 2010-10-11 | 2013-06-12 | 株式会社Lg化学 | Method and system for setting up sequential ids for multiple slaves of a battery pack |
| WO2013125850A1 (en) * | 2012-02-20 | 2013-08-29 | 주식회사 엘지화학 | System and method for allocating identifier to multi-bms |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883858A (en) * | 2019-05-03 | 2020-11-03 | 大众汽车有限公司 | Battery pack unit and communication method in battery pack unit |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015104204A1 (en) | 2015-07-16 |
| CN105874816B (en) | 2019-09-03 |
| KR20160106064A (en) | 2016-09-09 |
| DE102014200321A1 (en) | 2015-07-16 |
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