CN106302855B - A kind of automatic addressing method and apparatus of cell management system of electric automobile - Google Patents
A kind of automatic addressing method and apparatus of cell management system of electric automobile Download PDFInfo
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- CN106302855B CN106302855B CN201610663393.3A CN201610663393A CN106302855B CN 106302855 B CN106302855 B CN 106302855B CN 201610663393 A CN201610663393 A CN 201610663393A CN 106302855 B CN106302855 B CN 106302855B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/627—Controller area network [CAN] identifiers
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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
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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
- 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
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Electric Propulsion And Braking For Vehicles (AREA)
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Abstract
Embodiment of the present invention discloses a kind of automatic addressing method and apparatus of cell management system of electric automobile.Cell management system of electric automobile includes main control module, from control module and high-pressure modular, this method comprises: setting identical particular value for controller local area network's mark from control module and controller local area network's mark of the high-pressure modular, and the particular value is saved in main control module；According to the physical distribution position of battery, will successively be connected from the controller LAN communication bus of control module and high-pressure modular and battery management system；Main control module is that the controller local area network mutually distinguished from control module and high-pressure modular setting identifies based on the particular value according to the time sequencing for receiving the controller LAN message comprising the particular value.Embodiment of the present invention realizes increment type automatic addressing, can reduce workload and error probability.
Description
Technical field
The present invention relates to electric vehicle engineering field, in particular to a kind of automatic addressing of cell management system of electric automobile
Method and apparatus.
Background technique
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.Hybrid vehicle combines the advantage of pure electric automobile and traditional combustion engine automobile, is meeting vehicle dynamic quality requirement
Under the premise of being required with continual mileage, effectively improve fuel economy, reduce discharge, it is considered to be current energy conservation with subtract
One of active path of row.
Battery management system (Battery Management System, BMS) is the core component of electric car.BMS is
The important tie of vehicle mounted dynamic battery and electric car is connected, major function includes: battery physical parameter real-time monitoring；Battery
State estimation；Inline diagnosis and early warning；Charge and discharge and preliminary filling control；Balanced management and heat management etc..Battery management system is produced
The test of product is design, production phase to need the important process carried out.
BMS is mainly made of three parts: a main control module, multiple from a control module and high-pressure modular.It is directed at present
It is mainly by being accomplished manually from the addressing work of control module and high-pressure modular.
However, physical distribution is complex since number of batteries is numerous, battery management system modules are carried out artificial
It addresses heavy workload and is easy error.
Summary of the invention
In view of this, the object of the present invention is to provide the automatic addressing methods and dress of a kind of cell management system of electric automobile
It sets, to reduce workload and error probability.
A kind of automatic addressing method of cell management system of electric automobile, the cell management system of electric automobile include master
Control module, from control module and high-pressure modular, this method comprises:
It is identified described from controller local area network's mark of control module and the controller local area network of the high-pressure modular
It is set as identical particular value, and saves the particular value in main control module；
According to the physical distribution position of battery, successively by from control module and high-pressure modular and battery management system controller
The connection of local area network communication bus；
Main control module is according to the time sequencing for receiving the controller LAN message comprising the particular value, based on described
Particular value is that the controller local area network mutually distinguished from control module and high-pressure modular setting identifies.
In one embodiment, in controller local area network's mark mutually to be distinguished from control module and high-pressure modular setting
After knowledge, this method further include:
When from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular control
General ability domain network identity is set as the particular value；
It will mutually be separated from control module and high-pressure modular with the controller LAN communication bus of battery management system；
According to the physical distribution position of battery, again by from control module and high-pressure modular and battery management system controller
The connection of local area network communication bus；
Main control module is according to the time sequencing and institute for receiving the controller LAN message comprising the particular value again
Particular value is stated, is identified again for the controller local area network mutually distinguished from control module and high-pressure modular setting.
In one embodiment, described to include: from control module or high-pressure modular appearance mark mistake
It is identified from identical controller local area network is occupied jointly between control module；Or
Identical controller local area network is occupied jointly from control module and high-pressure modular to identify.
In one embodiment, this method further include:
When breaking down from control module, the failure is led to from the controller LAN of control module and battery management system
Letter bus mutually separates；
The failure will be used to replace and be set as institute from controller local area network's mark of control module from the update of control module
Particular value is stated, and described update is connected from control module with the controller LAN communication bus of battery management system；
Main control module receives the controller LAN message comprising the particular value from described update from control module, will be described
Update the controller local area network being set as from controller local area network's mark of control module with the failure from control module assignment
It identifies identical.
In one embodiment, the failure is multiple from the number for controlling module；
It is described will update be connected from control module with the controller LAN communication bus of battery management system include: according to
The physical distribution position of battery, successively by each controller LAN communication bus updated from control module and battery management system
Connection；
The main control module will be updated from updating from controller LAN message of the control module reception comprising the particular value
It is set as identical from control controller local area network's mark of module assignment as failure from controller local area network's mark of control module,
Include:
Main control module according to from it is each update from control module receive the controller LAN message comprising particular value when
Between sequence, by it is each update from control module controller local area network mark be respectively set to corresponding failure from control mould
Controller local area network's mark of block distribution is identical.
In one embodiment, this method further include:
When failure high-pressure modular, the controller LAN of the failure high-pressure modular and battery management system is led to
Letter bus mutually separates；
Institute is set by the controller local area network's mark for the update high-pressure modular for being used to replace the failure high-pressure modular
Particular value is stated, and the update high-pressure modular is connected with the controller LAN communication bus of battery management system；
Main control module receives the controller LAN message comprising the particular value from the update high-pressure modular, will be described
The controller local area network's mark for updating high-pressure modular is set as the controller local area network distributed with the failure high-pressure modular
It identifies identical.
A kind of automatic addressing device of cell management system of electric automobile, the cell management system of electric automobile include master
It controls module, include: from control module and high-pressure modular, the device
Setup module, for the controller local area network from control module to be identified the controller with the high-pressure modular
Local area network mark is set as identical particular value, and the particular value is saved in main control module；
Link block successively will be from control module and high-pressure modular and cell tube for the physical distribution position according to battery
The controller LAN communication bus of reason system connects；
Enabled module, for enabling main control module according to receiving the controller LAN message comprising the particular value
Time sequencing is that the controller local area network mutually distinguished from control module and high-pressure modular setting marks based on the particular value
Know.
In one embodiment, further includes:
Correction module, for identifying it for the controller local area network mutually distinguished is arranged from control module and high-pressure modular
Afterwards, when from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular control general ability
Domain network identity is set as the particular value, will lead to from the controller LAN of control module and high-pressure modular and battery management system
Letter bus mutually separates, again will be from control module and high-pressure modular and battery management system according to the physical distribution position of battery
The connection of controller LAN communication bus, enabled main control module according to receiving the controller local comprising the particular value again
The time sequencing of network packet and the particular value are the controller mutually distinguished from control module and high-pressure modular setting again
Local area network mark.
In one embodiment, described to include: from control module or high-pressure modular appearance mark mistake
It is identified from identical controller local area network is occupied jointly between control module；Or
Identical controller local area network is occupied jointly from control module and high-pressure modular to identify.
In one embodiment, further includes:
Module is replaced, for when breaking down from control module, by the failure from control module and battery management system
Controller LAN communication bus mutually separates, and will be used to replace the failure from the update of module is controlled from the control general ability of control module
Domain network identity is set as the particular value, and described update from the controller LAN of control module and battery management system is led to
Believe that bus is connected, enables main control module from described update from control module and receive the controller LAN report comprising the particular value
Text, enabled main control module set described update from controller local area network's mark of control module to the failure from control module
Controller local area network's mark of distribution is identical.
It can be seen from the above technical proposal that cell management system of electric automobile includes main control module, from control module and high
Die block, this method comprises: by being marked from controller local area network's mark of control module and the controller local area network of high-pressure modular
Knowledge is set as identical particular value, and particular value is saved in main control module；It, successively will be from according to the physical distribution position of battery
The controller LAN communication bus for controlling module and high-pressure modular and battery management system connects；Main control module according to receive packet
The time sequencing of controller LAN message containing particular value is that mutual area is arranged from control module and high-pressure modular based on particular value
The controller local area network's mark divided.As it can be seen that embodiment of the present invention realize increment type automatic addressing, can reduce workload and
Error probability.
Moreover, embodiment of the present invention does not increase hardware cost, and simple to operate.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the automatic addressing method flow diagram of cell management system of electric automobile of the present invention.
Fig. 2 is the demonstrative circuit structure chart from control module of batteries of electric automobile of the present invention.
Fig. 3 is demonstrative structure figure of the present invention from the battery management system for controlling module composition.
Fig. 4 is the automatic addressing structure drawing of device of cell management system of electric automobile of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.
To make simplified form, part related to the present invention is only schematically shown in each figure, and does not represent it
Practical structures as product.In addition, so that simplified form is easy to understand, with the portion of identical structure or function in some figures
Part only symbolically depicts one of those, or has only marked one of those.
Controller LAN (Controller Area Network, CAN) communication is the widely applied communication of automotive electronics
Mode, electric car are no exception.The present invention carries out increment type automatic addressing using CAN communication, does not increase hardware cost, improves
Battery management system production and service efficiency.
Fig. 1 is the automatic addressing method flow diagram of cell management system of electric automobile of the present invention.Batteries of electric automobile management
System includes main control module, from control module and high-pressure modular.
High-pressure modular is generally one, commonly used in acquiring the total voltage of entire battery pack, pre-charge pressure, total current and absolutely
Edge resistance value.
It is generally multiple from control module, it is respectively used to the battery parameter of acquisition respective battery modules.Battery parameter includes: electricity
Monomer string number in the module of pond；Monomer and number in battery module；Temperature sampling point number in battery module；Battery types；Battery mould
Block total voltage；From control inside modules temperature；All monomer battery voltage information；All temperature acquisition point temperature informations；Highest list
Body battery voltage value；Maximum temperature value；The corresponding single battery serial number of highest unit cell voltage value；Maximum temperature value is corresponding
Temperature acquisition point serial number；Minimum unit cell voltage value；Lowest temperature angle value；The corresponding single battery of minimum unit cell voltage value
Serial number；The corresponding temperature acquisition point serial number of lowest temperature angle value；Software version number；Hardware version numbers；Monomer battery voltage qualification model
It encloses；Temperature acceptability limit；Monomer battery voltage testing result display lamp state；Temperature detection result display lamp state, etc..
Main control module is generally one, is used for from high-pressure modular and from control module collection data, and execute and generate battery control
The processing such as system order.
As shown in Figure 1, this method comprises:
Step 101: it will identify from the CAN mark of control module and the CAN of high-pressure modular and be set as identical particular value, and
Particular value is saved in main control module.
Herein, it can will be identified and high-pressure modular from the CAN of control module in advance in plant produced setting up procedure
CAN mark is set as identical particular value, and particular value is saved in main control module.
Step 102:, successively will be from control module and high-pressure modular and battery management system according to the physical distribution position of battery
CAN communication bus connection.
For example, the clock-wise order of physical location can be distributed according to battery, it successively will be all from control on electric car
Module and high-pressure modular access CAN communication bus.From control module and after high-pressure modular is linked into CAN communication bus, send at once
CAN message comprising particular value.Therefore, the time sequencing of the CAN message comprising particular value is sent from control module and high-pressure modular,
Clock-wise order corresponding to battery distribution physical location.That is, main control module receives the CAN message comprising particular value
Time sequencing, corresponding to battery distribution physical location clock-wise order.
Similarly, can according to battery be distributed physical location sequence counter-clockwise, successively by electric car it is all from
It controls module and high-pressure modular accesses CAN communication bus.From control module and after high-pressure modular is linked into CAN communication bus, send out at once
Send the CAN message comprising particular value.Therefore, the time for sending the CAN message comprising particular value from control module and high-pressure modular is suitable
Sequence, the sequence counter-clockwise corresponding to battery distribution physical location.That is, main control module receives the CAN comprising particular value
The time sequencing of message, the sequence counter-clockwise corresponding to battery distribution physical location.
Step 103: main control module is according to the time sequencing for receiving the CAN message comprising particular value, based on particular value
The CAN mutually distinguished from control module and high-pressure modular setting is identified.
For example, by its address, (i.e. CAN is marked after main control module receives the CAN communication message of first module access
Know) it is set as No. 1 (be more specifically designated as particular value and add one)；Second module is set as No. 2 (are more specifically designated as particular value and add two),
Third module is set as No. 3 (are more specifically designated as particular value and add three), and so on.
When main control module detect it is all from control module and high-pressure modular all access after, increment type automatic addressing completion.
Citing: 12 be suppose there is from control module and 1 high-pressure modular.
Firstly, being both configured to 0x00 from the CAN of control module and high-pressure modular mark (address) for 12.
Then, all control modules and high-pressure modular plate are sequentially ingressed into CAN communication bus clockwise according to physical location.It is main
After control module receives the CAN communication message of first module access, CAN mark (address) is set as 0x001；Main control module
After the CAN communication message for receiving the access of second module, CAN mark (address) is set as 0x002；Main control module receives
After the CAN communication message of third module access, CAN mark (address) is set as 0x003；Main control module receives the 4th
After the CAN communication message of module access, CAN mark (address) is set as 0x004；Main control module receives the 5th module and connects
After the CAN communication message entered, CAN mark (address) is set as 0x005；Main control module receives the 6th module access
After CAN communication message, CAN mark (address) is set as 0x006；The CAN that main control module receives the access of the 7th module is logical
After believing message, CAN mark (address) is set as 0x007；Main control module receives the CAN communication message of the 8th module access
Afterwards, CAN mark (address) is set as 0x008；It, will after main control module receives the CAN communication message of the 9th module access
CAN mark (address) is set as 0x009；After main control module receives the CAN communication message of the tenth module access, CAN is marked
Know (address) and is set as 0x00A；After main control module receives the CAN communication message of the 11st module access, CAN is identified
(address) is set as 0x00B；After main control module receives the CAN communication message of the 12nd module access, CAN is identified into (
Location) it is set as 0x00C；After main control module receives the CAN communication message of the 13rd module access, CAN is identified into (address)
It is set as 0x00D.
When main control module detect it is all from control module (12) and high-pressure modular (1) all access after, increment type is automatic
Addressing is completed.
As it can be seen that embodiment of the present invention can realize increment type automatic addressing by CAN communication mode, work can be reduced
Amount and error probability.Moreover, embodiment of the present invention neither increases hardware cost, and simple to operate.
In one embodiment, after the CAN mutually to distinguish from control module and high-pressure modular setting is identified, the party
Method further include:
When from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular CAN
Mark is set as particular value；
It will mutually be separated from control module and high-pressure modular with the CAN bus of battery management system；
According to the physical distribution position of battery, will lead to again from the CAN of control module and high-pressure modular and battery management system
Believe bus connection；
Main control module according to the time sequencing and particular value for receiving the CAN message comprising particular value again, again for from
The CAN that control module and high-pressure modular setting are mutually distinguished is identified.
In one embodiment, mark mistake occur from control module or high-pressure modular includes: from common between control module
Occupy identical CAN mark；It is identified or, occupying identical CAN jointly from control module and high-pressure modular.
As it can be seen that when there is mark mistake, the main control module of embodiment of the present invention send instruction by all nodes (including
From control module and high-pressure modular) CAN mark be set as default value, and re-mapping, so as to overcome mark mistake.
In one embodiment, this method further include:
When breaking down from control module, failure is mutually separated from control module with the CAN communication bus of battery management system；
Failure will be used to replace and be set as particular value from the CAN network mark of control module from the update of control module, and will be updated
It is connected from control module with the CAN bus of battery management system；
Main control module will be updated from updating from controller LAN message of the control module reception comprising particular value from control module
CAN mark be set as with failure from control the CAN mark of module assignment it is identical.
For example, when arbitrarily being needed replacing from control module failure, ID of the main control module automatic identification failure from control module
And it is addressed to original address.For example: when CAN be identified as 0x005 from control module failure when, failure is first from control module
It is first separated with CAN bus, after accessing new update from control module, updating from the default address of control module is 0x000.Master control mould
Block identifies a unique default address in bus, and checks ID missing 0x005, then is set as the existing address 0x000
Thus 0x005 completes automatic addressing.
In one embodiment, failure is multiple from the number for controlling module；It will update from control module and battery management system
It includes: physical distribution position according to battery that the CAN bus of system, which is connected, is successively updated each from control module and battery management
The CAN bus of system connects；Main control module will be updated from updating from CAN message of the control module reception comprising particular value from control mould
The CAN mark of block is set as identical from the control CAN mark of module assignment as failure, comprising: main control module is according to from each update
The time sequencing that the CAN message comprising particular value is received from control module sets each update from the CAN mark of control module respectively
It is set to identical from the control CAN mark of module assignment as corresponding failure.
As it can be seen that even if failure from control module number be it is multiple, embodiment of the present invention also advantageously realizes more very much
It changes, moreover, the CAN mark of update from control module is identical as the CAN mark holding of the failure from the control module that are replaced, consequently facilitating
The maintenance of CAN communication.
In one embodiment, this method further include:
When failure high-pressure modular, failure high-pressure modular is mutually separated with the CAN bus of battery management system；
Particular value is set by the CAN mark for the update high-pressure modular for being used to replace failure high-pressure modular, and will more new peak
Die block is connected with the CAN bus of battery management system；
Main control module receives the CAN message comprising particular value from high-pressure modular is updated, and the CAN that will update high-pressure modular is identified
It is set as identical as the CAN mark that failure high-pressure modular distributes.
Embodiment of the present invention is suitable for a plurality of types of from control module.
Preferably, embodiment of the present invention proposes from control module include: negative tempperature coefficient thermistor；Comprising isolated
The voltage acquisition core of communication interface is separately connected with multiple single batteries in negative tempperature coefficient thermistor and battery module,
For acquiring the monomer battery voltage and battery module total voltage of each single battery, and acquires negative tempperature coefficient thermistor and mention
The battery temperature of confession；Power supply module 303, for powering for voltage acquisition chip；Voltage acquisition core is also used to via isolated logical
Letter interface sends monomer battery voltage, the battery module of each single battery with isolated communication mode to isolated communication chip
Total voltage and battery temperature.Embodiment of the present invention proposes from control module, complete all letters of battery management system front end
Number collecting work, can match in the standard container of all vehicles, greatly facilitate production and assembly, can reduce open
Hair, production and assembly cost, can also improve the testing efficiency from control module.
Fig. 2 is exemplary circuit diagram of the cell management system of electric automobile of the present invention from control module.
As shown in Fig. 2, LTC6804-2 chip as voltage acquisition chip, is connect with 12 string single batteries respectively.This 12 string
Single battery specifically includes: Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, Cell7, Cell8, Cell9,
Cell10, Cell11 and Cell12.
Resistance R3, resistance C4, negative tempperature coefficient thermistor NTC1 constitute series connection bleeder circuit.Negative temperature coefficient thermistor power
Hinder NTC1 both end voltage by operational amplifier U1A (as follower) be then output to resistance R6 and capacitor C5 constitute it is low
Bandpass filter is finally acquired by the GPIO1 pin of LTC6804-2 chip, and carries out A/D conversion.Data after A/D conversion are by electricity
The main control module of pond management system, which calculate, obtains current temperature value.NTC2 modular circuit working principle is identical as NTC1, no
It repeats again.
In current divider (SHUNT) voltage collection circuit, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12 and
Capacitor C7 is constituted with additive process circuit, wherein VREF2 voltage is 3V, and SHUNT output voltage carries out add operation therewith, through electricity
After hindering the low-pass filter that R8 and capacitor C7 is constituted, converted by the acquisition of GPIO3 pin and A/D.
LTC6804-2 chip completes 12 string monomer battery voltages, 2 NTC temperature, 1 current divider current signal (electric current stream
Switch to voltage signal after current divider) acquisition after, by the isoSPI communication technology to the LTC6804-2 chip of upper level pass
Defeated 12 string monomer battery voltage, battery module total voltage, 2 NTC temperature, 1 IC internal temperature are (i.e. in LTC6804-2 chip
Portion's temperature) and System current.
As a standard from control module, the present invention completes all signal acquisitions work of battery management system front end,
It can be matched in the standard container of all vehicles, greatly facilitate production and assembly.In fact, standard from control module
In the parameter of acquisition, System current, can be with only one in entire electric vehicle as option.Current divider can also be protected only
One for staying least significant end, remaining is handled from control module using copper bar short circuit, flexible structure.
Fig. 3 is demonstrative structure figure of the present invention from the battery management system for controlling module composition.
Data are uploaded to communication interface circuit by daisy chaining from control module by standard proposed by the present invention
LTC6820 is transferred to main control module (MCU), master control mould after data transfer mode is converted to standard SPI communication by LTC6820
Block, which is concentrated, carries out data analysis and process.Meanwhile main control module and other CAN nodes carry out data interaction, complete battery management
The function of system.
Fig. 4 is the automatic addressing structure drawing of device of cell management system of electric automobile of the present invention.Batteries of electric automobile management
System include main control module, from control module and high-pressure modular, the device 40 include:
Setup module 41, for the control general ability with the high-pressure modular will to be identified from the controller local area network for controlling module
Domain network identity is set as identical particular value, and the particular value is saved in main control module；
Link block 42 successively will be from control module and high-pressure modular and battery for the physical distribution position according to battery
The controller LAN communication bus of management system connects；
Enabled module 43, for enabling main control module according to receiving the controller LAN message comprising the particular value
Time sequencing, be described the controller local area network mutually distinguished to be set from control module and high-pressure modular based on the particular value
Mark.
In one embodiment, further includes:
Correction module 44, in controller local area network's mark mutually to be distinguished from control module and high-pressure modular setting
Later, when from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular controller
Local area network mark is set as particular value, will communicate from control module and high-pressure modular with the controller LAN of battery management system
Bus mutually separates, according to the physical distribution position of battery, again by from control module and high-pressure modular and battery management system control
Device local area network communication bus processed connection, enabled main control module according to receiving the controller LAN message comprising particular value again
Time sequencing and particular value be again to be identified from control module and the controller local area network mutually distinguished of high-pressure modular setting.
In one embodiment, mark mistake occur from control module or high-pressure modular includes: from common between control module
Occupy identical controller local area network's mark；Or, occupying identical controller LAN jointly from control module and high-pressure modular
Network mark.
In one embodiment, further includes:
Replace module 45, for when break down from control module when, by failure from control module and battery management system control
Device local area network communication bus processed mutually separates, and will be used to replace failure from the update of module is controlled from the controller local area network of control module
Mark is set as particular value, and will update and be connected from control module with the controller LAN communication bus of battery management system,
From updating from controller LAN message of the control module reception comprising particular value, enabling main control module will update enabled main control module
It is set as identical from control controller local area network's mark of module assignment as failure from controller local area network's mark of control module.
In conclusion cell management system of electric automobile includes main control module, from control module and high-pressure modular, this method packet
It includes: identical spy will be set as from controller local area network's mark of control module and controller local area network's mark of high-pressure modular
Definite value, and the particular value described in main control module；It, successively will be from control module and high-pressure modular according to the physical distribution position of battery
It is connect with the controller LAN communication bus of battery management system；Main control module is according to receiving the controller comprising particular value
The time sequencing of local network packet is that the controller LAN mutually distinguished is arranged from control module and high-pressure modular based on particular value
Network mark.
As it can be seen that embodiment of the present invention realizes increment type automatic addressing, workload and error probability can be reduced.
Moreover, embodiment of the present invention neither increases hardware cost, and simple to operate.
Herein, "one" is not offered as being limited to the quantity of relevant portion of the present invention " only this ", and " one
It is a " it does not indicate to exclude the situation of the quantity " more than one " of relevant portion of the present invention.
Herein, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc. are only used for indicating relevant portion
Between relative positional relationship, and the absolute position of these non-limiting relevant portions.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of automatic addressing method of cell management system of electric automobile, which is characterized in that the batteries of electric automobile management
System includes main control module, from control module and high-pressure modular, this method comprises:
It identifies described and be arranged from controller local area network's mark of control module and the controller local area network of the high-pressure modular
For identical particular value, and the particular value is saved in main control module；
According to the physical distribution position of battery, successively by from control module and high-pressure modular and battery management system controller local
The connection of Network Communication bus；
Main control module is according to the time sequencing for receiving the controller LAN message comprising the particular value, based on described specific
Value is that the controller local area network mutually distinguished from control module and high-pressure modular setting identifies.
2. the automatic addressing method of cell management system of electric automobile according to claim 1, which is characterized in that for from
After controller local area network's mark that control module and high-pressure modular setting are mutually distinguished, this method further include:
When from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular control general ability
Domain network identity is set as the particular value；
It will mutually be separated from control module and high-pressure modular with the controller LAN communication bus of battery management system；
According to the physical distribution position of battery, again by from control module and high-pressure modular and battery management system controller local
The connection of Network Communication bus；
Main control module is according to the time sequencing and the spy for receiving the controller LAN message comprising the particular value again
Definite value identifies again for the controller local area network mutually distinguished from control module and high-pressure modular setting.
3. the automatic addressing method of cell management system of electric automobile according to claim 2, which is characterized in that it is described from
There is mark mistake in control module or high-pressure modular
It is identified from identical controller local area network is occupied jointly between control module；Or
Identical controller local area network is occupied jointly from control module and high-pressure modular to identify.
4. the automatic addressing method of cell management system of electric automobile according to claim 1, which is characterized in that this method
Further include:
When breaking down from control module, the failure is communicated always from control module with the controller LAN of battery management system
Line mutually separates；
The failure will be used to replace and be set as the spy from controller local area network's mark of control module from the update of control module
Definite value, and will update and be connected from control module with the controller LAN communication bus of battery management system；
Main control module receives the controller LAN message comprising the particular value from described update from control module, by the update
It is set as identifying with the failure from the controller local area network of control module assignment from controller local area network's mark of control module
It is identical.
5. the automatic addressing method of cell management system of electric automobile according to claim 4, which is characterized in that the event
It is multiple for hindering from the number of control module；
Described will update from controlling module to be connected with the controller LAN communication bus of battery management system includes: according to battery
Physical distribution position, successively by it is each update from control module and battery management system controller LAN communication bus connect
It connects；
The main control module will be updated from updating from controller LAN message of the control module reception comprising the particular value from control
Controller local area network's mark of module is set as identical from control controller local area network's mark of module assignment as failure, packet
It includes:
Main control module is suitable according to the time for receiving the controller LAN message comprising particular value from control module from each update
Each update from controller local area network's mark of control module is respectively set to divide with corresponding failure from control module by sequence
The controller local area network's mark matched is identical.
6. the automatic addressing method of cell management system of electric automobile according to claim 1, which is characterized in that this method
Further include:
When failure high-pressure modular, the failure high-pressure modular is communicated always with the controller LAN of battery management system
Line mutually separates；
The spy is set by the controller local area network's mark for the update high-pressure modular for being used to replace the failure high-pressure modular
Definite value, and the update high-pressure modular is connected with the controller LAN communication bus of battery management system；
Main control module receives the controller LAN message comprising the particular value from the update high-pressure modular, by the update
Controller local area network's mark of high-pressure modular is set as identifying with the controller local area network that the failure high-pressure modular distributes
It is identical.
7. a kind of automatic addressing device of cell management system of electric automobile, which is characterized in that the batteries of electric automobile management
System include main control module, from control module and high-pressure modular, the device include:
Setup module, for the controller local area network from control module to be identified the controller local with the high-pressure modular
Network identity is set as identical particular value, and the particular value is saved in main control module；
Link block successively will be from control module and high-pressure modular and battery management system for the physical distribution position according to battery
The controller LAN communication bus of system connects；
Enabled module, for enabling main control module according to the time for receiving the controller LAN message comprising the particular value
It sequentially, is that the controller local area network mutually distinguished from control module and high-pressure modular setting identifies based on the particular value.
8. the automatic addressing device of cell management system of electric automobile according to claim 7, which is characterized in that also wrap
It includes:
Correction module, for for from control module and high-pressure modular setting mutually distinguish controller local area network mark after,
When from control module or high-pressure modular occur mark mistake when, main control module by from control module and high-pressure modular controller LAN
Network mark is set as the particular value, will communicate always from control module and high-pressure modular with the controller LAN of battery management system
Line mutually separates, according to the physical distribution position of battery, again by from control module and high-pressure modular and battery management system control
The connection of device local area network communication bus, enabled main control module according to receiving the controller LAN report comprising the particular value again
The time sequencing and the particular value of text are the controller local mutually distinguished from control module and high-pressure modular setting again
Network identity.
9. the automatic addressing device of cell management system of electric automobile according to claim 7, which is characterized in that it is described from
There is mark mistake in control module or high-pressure modular
It is identified from identical controller local area network is occupied jointly between control module；Or
Identical controller local area network is occupied jointly from control module and high-pressure modular to identify.
10. the automatic addressing device of cell management system of electric automobile according to claim 7, which is characterized in that also wrap
It includes:
Replace module, for when break down from control module when, by the failure from control module and battery management system control
Device local area network communication bus mutually separates, and will be used to replace the failure from the update of module is controlled from the controller LAN of control module
Network mark is set as the particular value, and described update is communicated always from control module with the controller LAN of battery management system
Line is connected, and enables main control module from described update from control module and receives the controller LAN message comprising the particular value,
Main control module is enabled to be set as dividing with the failure from control module by described update from controller local area network's mark of control module
The controller local area network's mark matched is identical.
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| CN113542440B (en) * | 2020-04-16 | 2023-07-04 | 郑州宇通集团有限公司 | Battery pack wireless information acquisition device and addressing method and addressing system thereof |
| CN112910053A (en) * | 2021-03-15 | 2021-06-04 | 东莞新能安科技有限公司 | Power utilization device, battery pack, BMS system and bus matching resistor access method |
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