CN107482260A - Heating relay fault detection method, device, system and the vehicle of battery system - Google Patents
Heating relay fault detection method, device, system and the vehicle of battery system Download PDFInfo
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- CN107482260A CN107482260A CN201710393713.2A CN201710393713A CN107482260A CN 107482260 A CN107482260 A CN 107482260A CN 201710393713 A CN201710393713 A CN 201710393713A CN 107482260 A CN107482260 A CN 107482260A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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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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Abstract
The invention discloses heating relay fault detection method, device, system and the vehicle of a kind of battery system, wherein, method includes：When entering not heater operation mode, one or more and vehicle load current A0 in input current A1, the input current A3 of fast charge charging equipment and the input current A4 of trickle charge charging equipment of charge circuit are gathered according to not heater operation mode；The heating circuit electric current A2 of electrokinetic cell is obtained according to the difference between the input current A1 of charge circuit, the input current A3 of fast charge charging equipment and trickle charge charging equipment input current A4 one or more sums and load current A0；According to heating circuit electric current A2 determine heating relay whether adhesion.This method can accurately detect the electric current of heating circuit, so that it is determined that heating relay whether adhesion, without heated current sensor, find heating relay adhesion beneficial to timely, effectively improve the security of vehicle, it is simple and convenient.
Description
Technical field
The present invention relates to battery technical field of heating, the heating relay fault detect side of more particularly to a kind of battery system
Method, device, system and vehicle.
Background technology
In correlation technique, the electric current of battery heating circuit is read typically to be sensed by being arranged in heated current in electrical box
Device, it is simple and convenient, so as to judge the heating relay of battery heating system by the way that whether heated current sensor has follow current
Whether device is in the state of adhesion.
However, heated current sensor price is costly, cause cost higher, and heated current sensor takes one
Determine arrangement space, have very big constraint hence for the arrangement space of electrical box and battery bag, easy waste electrical box and battery bag
Space, most importantly, in the application of electric automobile, because system architecture etc. easily limits, cause heating
During relay adhesion, it is necessary to which opening electrical box could be judged, cumbersome, be unfavorable for finding that heating relay glues in time
Even, vehicle safety is greatly reduced.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, first purpose of the present invention is the heating relay fault detection method for proposing a kind of battery system,
This method can effectively improve the security of vehicle in favor of the relay adhesion of discovery heating in time, simple and convenient.
Second object of the present invention is the heating relay failure detector for proposing a kind of battery system.
Third object of the present invention is to propose a kind of battery management system.
Fourth object of the present invention is loaded in a kind of vehicle of proposition.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of heating relay failure of battery system
Detection method, comprise the following steps：When electrokinetic cell enters the not heater operation mode that heating relay disconnects, according to described
Not input current A1, the input current A3 and trickle charge charging equipment of fast charge charging equipment of heater operation mode collection charge circuit
Input current A4 in one or more and vehicle load current A0；According to the input current A1 of the charge circuit, institute
State the input current A3 of fast charge charging equipment and the input current A4 of the trickle charge charging equipment one or more sums and institute
State the difference between load current A0 and obtain the heating circuit electric current A2 of electrokinetic cell；When the heating circuit electric current A2 is not 0
When, determine the heating relay adhesion.
The heating relay fault detection method of the battery system of the embodiment of the present invention, is deposited in no heated current sensor
In case, the electric current of heating circuit can be accurately detected, so as to reduce the use of heated current sensor, not only may be used
To save the space of electrical box and battery bag, space is saved, and vehicle manufacturing cost can be saved, reduces cost, Jin Erke
With accurate judgement heating relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient, be beneficial to
Heating relay adhesion is found in time, effectively improves the safety and reliability of vehicle.
Further, in one embodiment of the invention, do not heated if the not heater operation mode is a fast charge
Pattern, then gather the input current A1 of the charge circuit, the input current A3 of the fast charge charging equipment and the load electricity
Flow A0；According to the input current A1 of the charge circuit, the input current A3 of the fast charge charging equipment and the load current
A0 obtains the heating circuit electric current A2.
Further, in one embodiment of the invention, do not heated if the not heater operation mode is a trickle charge
Pattern, then gather the input current A1 of the charge circuit, the input current A4 of the trickle charge charging equipment and the load electricity
Flow A0；According to the input current A1 of the charge circuit, the input current A4 of the trickle charge charging equipment and the load current
A0 obtains the heating circuit electric current A2.
Further, in one embodiment of the invention, if the not heater operation mode is discharge mode, adopt
Collect the input current A1 and the load current A0 of the charge circuit；According to the input current A1 of the charge circuit and described
Load current A0 obtains the heating circuit electric current A2.
Alternatively, in one embodiment of the invention, when the not heater operation mode is discharge mode, also wrap
Include：When the heating circuit electric current A2 is 0, the input current of the load current A0 and the charge circuit is determined whether
Whether A1 is equal；If it is, determine the heating relay adhesion.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of heating relay failure of battery system
Detection means, including：Acquisition module (100), for entering the not heater operation mode of heating relay disconnection when electrokinetic cell
When, according to the not heater operation mode gather the input current A1 of charge circuit, fast charge charging equipment input current A3 and
One or more and vehicle load current A0 in the input current A4 of trickle charge charging equipment；Acquisition module (200), for root
According to the defeated of the input current A1 of the charge circuit, the input current A3 of the fast charge charging equipment and the trickle charge charging equipment
Enter the difference between electric current A4 one or more sums and the load current A0 and obtain the heating circuit electric current of electrokinetic cell
A2；Detection module (300), for when the heating circuit electric current A2 is not 0, determining the heating relay adhesion.
The heating relay failure detector of the battery system of the embodiment of the present invention, is deposited in no heated current sensor
In case, the electric current of heating circuit can be accurately detected, so as to reduce the use of heated current sensor, not only may be used
To save the space of electrical box and battery bag, space is saved, and vehicle manufacturing cost can be saved, reduces cost, Jin Erke
With accurate judgement heating relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient, be beneficial to
Heating relay adhesion is found in time, effectively improves the safety and reliability of vehicle.
Further, in one embodiment of the invention, when the not heater operation mode is a fast charge not heated mould
During formula, the acquisition module (100) gathers input current A1, the input current of the fast charge charging equipment of the charge circuit
The A3 and load current A0, the acquisition module (200) are charged according to the input current A1 of the charge circuit, the fast charge
The input current A3 of the equipment and load current A0 obtains the heating circuit electric current A2.
Further, in one embodiment of the invention, when the not heater operation mode is a trickle charge not heated mould
During formula, the acquisition module (100) gathers input current A1, the input current of the trickle charge charging equipment of the charge circuit
The A4 and load current A0, the acquisition module (200) are charged according to the input current A1 of the charge circuit, the trickle charge
The input current A4 of the equipment and load current A0 obtains the heating circuit electric current A2.
Further, in one embodiment of the invention, it is described when the not heater operation mode is discharge mode
Acquisition module (100) gathers the input current A1 and the load current A0 of the charge circuit, acquisition module (200) root
The heating circuit electric current A2 is obtained according to the input current A1 and the load current A0 of the charge circuit.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of battery management system, and it includes above-mentioned
Battery system heating relay failure detector.The system, can in the presence of no heated current sensor
Accurately to detect the electric current of heating circuit, so as to reduce the use of heated current sensor, electrical box can be not only saved
And the space of battery bag, space is saved, and vehicle manufacturing cost can be saved, cost is reduced, and then can add with accurate judgement
Electrothermal relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient, find heating beneficial to timely
Relay adhesion, effectively improve the safety and reliability of vehicle.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of vehicle, and it includes above-mentioned cell tube
Reason system, the vehicle can accurately detect the electric current of heating circuit in the presence of no heated current sensor, so as to
The use of heated current sensor can be reduced, can not only save the space of electrical box and battery bag, saves space, Er Qieke
To save vehicle manufacturing cost, reduce cost, so can be heated with accurate judgement relay whether adhesion, it is not necessary to open power
Electrical box where system, it is simpler convenient, beneficial to the timely security for finding heating relay adhesion, effectively improving vehicle
And reliability.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the principle schematic according to the vehicle battery system of one embodiment of the invention；
Fig. 2 is the flow chart according to the heating relay fault detection method of the battery system of one embodiment of the invention；
Fig. 3 is the principle schematic according to the fast charge of one embodiment of the invention not heating mode；
Fig. 4 is according to the trickle charge of the one embodiment of the invention not principle schematic of heating mode and discharge mode；
Fig. 5 is the structural representation according to the heating relay failure detector of the battery system of one embodiment of the invention
Figure.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Heating relay fault detection method, the dress of the battery system proposed according to embodiments of the present invention in description below
Put, before system and vehicle, the electrical principle of vehicle battery system is briefly described first.
As shown in figure 1, Fig. 1 is the electrical schematic diagram related to battery bag charging on electric automobile.A0 be air-conditioning, PEU,
The load current of the electric current summation, i.e. vehicle of heater even load, the load current of vehicle can pass to CAN (Controller
Area Network, controller local area network) on be read out.A1 is the current value of the measurement of charge circuit, i.e. charge circuit
Input current, A2 is the heating circuit electric current of current value, i.e. battery that heating circuit can measure, A3 be charging equipment such as
The input current of the current value, i.e. charging equipment of direct-current charging post output, A4 are that trickle charge charging equipment such as Vehicular charger exports
Current value, i.e. Vehicular charger input current.
It should be noted that A1, A3 and A4 are the input energy of system in figure, and A2 and A0 is output energy, therefore can
To learn：A2+A0=A1+A3+A4.
The application is based on understanding and discovery of the inventor to above mentioned problem, and proposes a kind of heating of battery system
Relay fault detection method, device, system and vehicle.
The heating relay fault detect side of battery system proposed according to embodiments of the present invention is described with reference to the accompanying drawings
Method, device, system and vehicle, the heating relay of battery system proposed according to embodiments of the present invention is described with reference to the accompanying drawings first
Device fault detection method.
Fig. 2 is the flow chart of the heating relay fault detection method of the battery system of one embodiment of the invention.
As shown in Fig. 2 the heating relay fault detection method of the battery system comprises the following steps：
In step s 201, when electrokinetic cell enters the not heater operation mode that heating relay disconnects, according to being not added with
Thermal technology's operation mode gathers the defeated of the input current A1 of charge circuit, the input current A3 of fast charge charging equipment and trickle charge charging equipment
Enter one or more and vehicle load current A0 in electric current A4.
The mode of operation of battery includes quick charging mode (equivalent to DC charging pattern), AC charging pattern and electric discharge
Pattern, and each pattern includes various working, as quick charging mode includes the heating cycle in fast charge, only heats not fast charge
Operating mode and a fast charge not heating cycle, and for example AC charging pattern include heating cycle, only heating not trickle charge operating mode in trickle charge
Only trickle charge not heating cycle.It is understood that in an embodiment of the present invention, the not heating work that heating relay disconnects
Pattern includes a fast charge not heating mode, a trickle charge not heating mode and discharge mode, will be described in detail below.
In step S202, according to the input current A1 of charge circuit, the input current A3 of fast charge charging equipment and trickle charge
Difference between the input current A4 of charging equipment one or more sums and load current A0 obtains the heating of electrokinetic cell
Loop current A2.
Wherein, in one embodiment of the invention, if heater operation mode is not a fast charge not heating mode, adopt
Collect input current A1, the input current A3 and load current A0 of fast charge charging equipment of charge circuit；According to the defeated of charge circuit
Enter electric current A1, the input current A3 of fast charge charging equipment and load current A0 and obtain heating circuit electric current A2.
It is understood that in only fast charge not heating mode, as shown in figure 3, fast charge positive pole relay, fast charge negative pole after
Electrical equipment, main negative relay closure, heating relay disconnect, and so as to which charge circuit has electric current, but heating circuit does not have electric current.This
When, it is not necessary to measure A2 electric current, if without heated current sensor also can, A2=A1+A3+A4-A0 (now A2=A4=
0)。
Further, in one embodiment of the invention, if heater operation mode is not a trickle charge not heating mode,
Then gather input current A1, the input current A4 and load current A0 of trickle charge charging equipment of charge circuit；According to charge circuit
Input current A1, the input current A4 and load current A0 of trickle charge charging equipment obtain heating circuit electric current A2.
It is understood that in only trickle charge not heating mode, preliminary filling relay closes first and then disconnect, and then leads positive relay
Device, main negative pole relay closure, heating relay, fast charge positive pole relay and fast charge negative pole relay disconnect, so as to charge back
There is electric current on road, but heating circuit does not have electric current.Now, it is not necessary to A2 electric current is measured, if also may be used without heated current sensor.
A2=A1+A3+A4-A0 (now A2=A3=0).
Further, in one embodiment of the invention, if heater operation mode is not discharge mode, collection is filled
The input current A1 and load current A0 of electrical circuit；Obtain heating back according to the input current A1 of charge circuit and load current A0
Road electric current A2.
It is understood that in discharge mode, preliminary filling relay closes first and then disconnect, main negative pole relay, it is main just after
Electrical equipment closes, and heating relay, fast charge positive pole relay and fast charge negative pole relay disconnect, and so as to charge circuit and heat back
Road does not all have electric current.A2=A1+A3+A4-A0 (now A2=A3=A4=0).
In step S203, when heating circuit electric current A2 is not 0, it is determined that heating relay adhesion.
Wherein, in one embodiment of the invention, when not heater operation mode is discharge mode, in addition to：When adding
When hot loop electric current A2 is 0, determine whether the input current A1 of load current A0 and charge circuit is equal；If it is,
Then determine heating relay adhesion.
Specifically, in only fast charge not heating mode, when preliminary filling relay closes first and then disconnect, main positive relay closes
When, the value for loading A0 may not be 0；When the positive relay of master disconnects, A0 value is 0.Now, fast charge positive pole relay, fast charge
Negative pole relay, main negative relay closure, heating relay disconnect.As shown in figure 3, charge circuit has electric current, heating circuit does not have
There is electric current.A2 electric current, A2=0 need not now be measured.But when A2 ＞ values (such as 0), it is possible to judge to heat relay
Device adhesion.
Further, in only trickle charge not heating mode, now preliminary filling relay closes first and then disconnect, and then leads positive relay
Device, main negative pole relay closure, heating relay, fast charge positive pole relay and fast charge negative pole relay disconnect.As shown in figure 4,
Charge circuit has electric current, and heating circuit does not have electric current.A2 electric current, A2=0 need not now be measured.But work as A2 ＞ values (such as
0) when, it can be determined that go out to heat relay adhesion.
However, in discharge mode, now preliminary filling relay closes first and then disconnect, main negative pole relay, main positive relay
Closure, heating relay, fast charge positive pole relay and fast charge negative pole relay disconnect.As shown in figure 4, charge circuit and heating
Loop does not all have electric current.Now A2=0, and as A0 ≠ A1, it can be determined that go out to heat relay in adhesion.
The heating relay fault detection method of the battery system proposed according to embodiments of the present invention, passes through charge circuit
One or more sums of the input current of input current, the input current of charging equipment and/or Vehicular charger and load electricity
Difference between stream obtains the heating circuit electric current of battery, and in the presence of no heated current sensor, it is accurate to realize
The purpose of the electric current of heating circuit is detected, so as to reduce the use of heated current sensor, can not only save electrical box
And the space of battery bag, space is saved, and vehicle manufacturing cost can be saved, reduce cost, it is important that can accurately sentence
Disconnected heating relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient, found beneficial to timely
Relay adhesion is heated, effectively improves the safety and reliability of vehicle.
The heating relay fault detect of the battery system proposed according to embodiments of the present invention referring next to accompanying drawing description fills
Put.
Fig. 5 is the structural representation of the heating relay failure detector of the battery system of one embodiment of the invention.
As shown in figure 5, the heating relay failure detector 10 of the battery system includes：Acquisition module 100, obtain mould
Block 200 and detection module 300.
Wherein, acquisition module 100 is used for when electrokinetic cell enters the not heater operation mode that heating relay disconnects, root
Set according to the input current A1 of not heater operation mode collection charge circuit, the input current A3 of fast charge charging equipment and trickle charge charging
One or more and vehicle load current A0 in standby input current A4.Acquisition module 200 is used for according to charge circuit
Input current A1, the input current A3 of fast charge charging equipment and trickle charge charging equipment input current A4 one or more sums
Difference between load current A0 obtains the heating circuit electric current A2 of electrokinetic cell.Detection module 300 is used to work as heating circuit
When electric current A2 is not 0, it is determined that heating relay adhesion.The device 10 of the embodiment of the present invention can accurately detect the electricity of heating circuit
Stream, so that it is determined that heating relay whether adhesion, without heated current sensor, heating relay adhesion is found beneficial to timely,
The security of vehicle is effectively improved, it is simple and convenient.
Further, in one embodiment of the invention, when not heater operation mode for fast charge not heating mode when,
Acquisition module 100 gathers input current A1, the input current A3 and load current A0 of fast charge charging equipment of charge circuit, obtains
Module 200 is heated according to the input current A1 of charge circuit, the input current A3 of fast charge charging equipment and load current A0
Loop current A2.
Further, in one embodiment of the invention, when not heater operation mode for trickle charge not heating mode when,
Acquisition module 100 gathers input current A1, the input current A4 and load current A0 of trickle charge charging equipment of charge circuit, obtains
Module 200 is heated according to the input current A1 of charge circuit, the input current A4 of trickle charge charging equipment and load current A0
Loop current A2.
Further, in one embodiment of the invention, when heater operation mode is not discharge mode, acquisition module
The input current A1 and load current A0 of 100 collection charge circuits, acquisition module 200 according to the input current A1 of charge circuit and
Load current A0 obtains heating circuit electric current A2.
It should be noted that the explanation of the foregoing heating relay fault detection method embodiment to battery system
Suitable for the heating relay failure detector of the battery system of the embodiment, here is omitted.
The heating relay failure detector of the battery system proposed according to embodiments of the present invention, passes through charge circuit
One or more sums of the input current of input current, the input current of charging equipment and/or Vehicular charger and load electricity
Difference between stream obtains the heating circuit electric current of battery, and in the presence of no heated current sensor, it is accurate to realize
The purpose of the electric current of heating circuit is detected, so as to reduce the use of heated current sensor, can not only save electrical box
And the space of battery bag, space is saved, and vehicle manufacturing cost can be saved, reduce cost, it is important that can accurately sentence
Disconnected heating relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient, found beneficial to timely
Relay adhesion is heated, effectively improves the safety and reliability of vehicle.
In addition, the embodiment of the present invention also proposed a kind of battery management system, the system includes above-mentioned battery system
Heat relay failure detector.The system passes through the input current of charge circuit, the input current of charging equipment and/or car
The difference carried between one or more sums of the input current of charger and load current obtains the heating circuit electric current of battery,
In the presence of no heated current sensor, the purpose of the electric current of accurate detection heating circuit is realized, so as to subtract
The use of few heated current sensor, the space of electrical box and battery bag can be not only saved, saves space, and can save
Vehicle manufacturing cost, reduces cost, it is important that can with accurate judgement heat relay whether adhesion, it is not necessary to open dynamical system
Electrical box where uniting, it is simpler convenient, find heating relay adhesion beneficial to timely, effectively improve vehicle security and
Reliability.
Also, the embodiment of the present invention also proposed a kind of vehicle, the vehicle includes above-mentioned battery management system.The vehicle
Pass through one or more of the input current of the input current of charge circuit, the input current of charging equipment and/or Vehicular charger
Difference between item sum and load current obtains the heating circuit electric current of battery, in feelings existing for no heated current sensor
Under condition, the purpose of the electric current of accurate detection heating circuit is realized, so as to reduce the use of heated current sensor, not only may be used
To save the space of electrical box and battery bag, space is saved, and vehicle manufacturing cost can be saved, reduces cost, it is important
Be can with accurate judgement heat relay whether adhesion, it is not necessary to open the electrical box where dynamical system, it is simpler convenient,
Beneficial to the timely safety and reliability for finding heating relay adhesion, effectively improving vehicle.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. the heating relay fault detection method of a kind of battery system, it is characterised in that comprise the following steps：
When electrokinetic cell enters the not heater operation mode that heating relay disconnects, gathered according to the not heater operation mode
One in the input current A1 of charge circuit, the input current A3 of fast charge charging equipment and trickle charge charging equipment input current A4
Item or multinomial and vehicle load current A0；
Set according to the input current A1 of the charge circuit, the input current A3 of the fast charge charging equipment and the trickle charge charging
The heating that difference between standby input current A4 one or more sums and the load current A0 obtains electrokinetic cell is returned
Road electric current A2；And
When the heating circuit electric current A2 is not 0, the heating relay adhesion is determined.
2. the heating relay fault detection method of battery system according to claim 1, it is characterised in that
If the not heater operation mode is a fast charge not heating mode, gather the charge circuit input current A1,
The input current A3 of the fast charge charging equipment and load current A0；
According to the input current A1 of the charge circuit, the input current A3 of the fast charge charging equipment and the load current A0
Obtain the heating circuit electric current A2.
3. the heating relay fault detection method of battery system according to claim 1, it is characterised in that
If the not heater operation mode is a trickle charge not heating mode, gather the charge circuit input current A1,
The input current A4 of the trickle charge charging equipment and load current A0；
According to the input current A1 of the charge circuit, the input current A4 of the trickle charge charging equipment and the load current A0
Obtain the heating circuit electric current A2.
4. the heating relay fault detection method of battery system according to claim 1, it is characterised in that
If the not heater operation mode is discharge mode, the input current A1 of the charge circuit and the load are gathered
Electric current A0；
The heating circuit electric current A2 is obtained according to the input current A1 of the charge circuit and the load current A0.
A kind of 5. heating relay failure detector of battery system, it is characterised in that including：
Acquisition module (100), for when electrokinetic cell enter heating relay disconnect not heater operation mode when, according to described
Not input current A1, the input current A3 and trickle charge charging equipment of fast charge charging equipment of heater operation mode collection charge circuit
Input current A4 in one or more and vehicle load current A0；
Acquisition module (200), for the input current A1 according to the charge circuit, the input current of the fast charge charging equipment
Difference between the input current A4 of A3 and the trickle charge charging equipment one or more sums and the load current obtains
The heating circuit electric current A2 of electrokinetic cell；And
Detection module (300), for when the heating circuit electric current A2 is not 0, determining the heating relay adhesion.
6. the heating relay failure detector of battery system according to claim 5, it is characterised in that when it is described not
Heating work pattern be a fast charge not heating mode when, the acquisition module (100) gathers the input current of the charge circuit
A1, the input current A3 of the fast charge charging equipment and the load current A0, the acquisition module (200) is according to the charging
The input current A1 in loop, the input current A3 of the fast charge charging equipment and the load current A0 obtain the heating circuit
Electric current A2.
7. the heating relay failure detector of battery system according to claim 5, it is characterised in that when it is described not
Heating work pattern be a trickle charge not heating mode when, the acquisition module (100) gathers the input current of the charge circuit
A1, the input current A4 of the trickle charge charging equipment and the load current A0, the acquisition module (200) is according to the charging
The input current A1 in loop, the input current A4 of the trickle charge charging equipment and the load current A0 obtain the heating circuit
Electric current A2.
8. the heating relay failure detector of battery system according to claim 5, it is characterised in that when it is described not
When heating work pattern is discharge mode, the acquisition module (100) gathers the input current A1 of the charge circuit and described
Load current A0, the acquisition module (200) obtain according to the input current A1 and the load current A0 of the charge circuit
The heating circuit electric current A2.
A kind of 9. battery management system, it is characterised in that including：Battery system as described in claim any one of 5-8 plus
Electrothermal relay failure detector.
A kind of 10. vehicle, it is characterised in that including：Battery management system as claimed in claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710393713.2A CN107482260A (en) | 2017-05-27 | 2017-05-27 | Heating relay fault detection method, device, system and the vehicle of battery system |
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| CN201710393713.2A CN107482260A (en) | 2017-05-27 | 2017-05-27 | Heating relay fault detection method, device, system and the vehicle of battery system |
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| CN113212247A (en) * | 2021-06-18 | 2021-08-06 | 中国第一汽车股份有限公司 | Management system and new energy automobile of power battery package |
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| CN117289144A (en) * | 2023-11-27 | 2023-12-26 | 宁德时代新能源科技股份有限公司 | Fault positioning method, device, equipment, system and medium |
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