CN106564391A - High-voltage power battery contactor detection method and device, battery management system and automobile - Google Patents
High-voltage power battery contactor detection method and device, battery management system and automobile Download PDFInfo
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- CN106564391A CN106564391A CN201510671652.2A CN201510671652A CN106564391A CN 106564391 A CN106564391 A CN 106564391A CN 201510671652 A CN201510671652 A CN 201510671652A CN 106564391 A CN106564391 A CN 106564391A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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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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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a high-voltage power battery contactor detection method and device and a battery management system. A detection mode special for detecting contactors is provided for the battery management system besides the normal work mode. When the battery management system is in a standby condition, the battery management system receives a control command sent by an external control device and gets into the contactor detection mode, closing or opening operation of the contactors is assigned according to the command of the external control device or closing or opening operation of the contactors is conducted in sequence according to a pre-stored detection sequence, and the battery management system automatically detects whether the functions of the contactors are normal or not and feeds back results to the external control device. By the adoption of the above scheme, whether the fault that all contactors cannot be closed or opened due to adhesion and aging occurs or not can be rapidly and accurately judged. Due to the adoption of the automatic technology, potential safety hazards do not exist.
Description
Technical field
The present invention relates to automobile intelligent service technique field, and in particular to a kind of high voltage power battery contactor
Detection method, a kind of battery management system and a kind of high voltage power battery contactor testing equipment and one kind
Including the automobile of the battery management system.
Background technology
High voltage power battery is the high voltage energy of electric automobile, and BMS (battery management system) needs to ring
Answer entire car controller to instruct, control contactor connection or disconnect the high pressure of car load, whether catalyst can be
Accurately the instruction of response entire car controller is related to the safety of vehicle and personnel under the control of battery management system.
As shown in figure 1, there being requisite catalyst in high voltage power battery system:Positive contact device, negative pole
Catalyst, preliminary filling catalyst, some electrokinetic cell systems also include single charging contactor.Catalyst
During long term frequent use, it is possible that the failure such as adhesion, aging, needs in electric automobile
When periodic maintenance or breakdown maintenance, the state of catalyst is detected.In prior art, generally have with
Lower two kinds of detection methods:
A kind of method is that testing staff is according to catalyst come control contactor by car load key switch signal
The sound sent during action is judging whether catalyst has action:When key is by Key On to Crank,
Entire car controller sends high pressure link order, and battery management system is sequentially connected negative pole within 2-3 times second
Catalyst, preliminary filling catalyst, positive contact device, complete high pressure connection, after positive contact device connects,
Battery management system disconnects preliminary filling catalyst automatically;When key is to Key Off, entire car controller sends disconnected
High pressure instruction is opened, battery management system disconnects successively positive contact device, cathode contact within 1-2 times second
Device, completes high pressure disconnection.This detection method goes whether subjective judgment catalyst has action by the audition of people,
Erroneous judgement is easily caused, and, under this detection mode, positive contact device, cathode contact device, preliminary filling
The closure of catalyst or disconnection action are continuously finished within the 2-3 seconds, it is difficult to distinguish specific catalyst
Whether compulsory exercise is accurately completed.
Another kind of method is the voltage difference of hand dipping catalyst rear and front end, and catalyst is opened or closed
Afterwards, its rear and front end voltage difference changes, and testing staff judges accordingly whether catalyst is opened or closed.
This detection method needs to open Battery case, the adept work survey tool directly contact high pressure of testing staff
Electricity, it is not convenient enough, it is also dangerous.
Therefore, need badly it is a kind of safely, conveniently, the high high voltage power battery contactor detection method of accuracy.
The content of the invention
For this purpose, the technical problem to be solved is prior art to electric automobile high-voltage power current
Pond detection method is either difficult to ensure that accuracy or convenience difference and there is potential safety hazard.
To solve above-mentioned technical problem, the present invention provides following technical scheme:
A kind of high voltage power battery contactor detection method, the method is applied to battery management system, including
Following steps:
Judge whether the command information for receiving starting contactor detection pattern;
Whether the current operating state for if so, then judging the battery management system is upper electric waiting state;
If then according to the command information starting contactor detection pattern;
Whether detection specifies the closure/opening operation of catalyst successful;
If specifying catalyst closure/opening operation success, send and represent the specified catalyst closure/disconnection
The testing result signal that operation passes through test, otherwise sends and represents the specified catalyst closure/opening operation
Not by the testing result signal of test.
Preferably, above-mentioned high voltage power battery contactor detection method, if then according to the instruction letter
In the step of breath starting contactor detection pattern, also include:
Judge whether the command information is automatic detection command information;
If then sending the control signal of closure/disconnection specified catalyst according to predefined procedure;
If otherwise receiving the command information that catalyst is specified in closure/disconnection;
Send the control signal of closure/disconnection specified catalyst.
Preferably, above-mentioned high voltage power battery contactor detection method, if then according to the instruction
Whether the step of information starting contactor detection pattern and detection specify the closure/opening operation of catalyst successful
The step of between also comprise the steps:
Judge whether to receive the command information that catalyst is specified in closure/disconnection in the first Preset Time;
If then sending the control signal of closure/disconnection specified catalyst;
The control signal of closure/disconnection specified catalyst is otherwise sent according to predefined procedure.
Preferably, above-mentioned high voltage power battery contactor detection method, detection specify catalyst closure/
In the whether successful step of opening operation:
The feedback signal of collection measurement terminal voltage signal or specified catalyst;
Judge feedback signal and the command information of the measurement terminal voltage signal or specified catalyst whether
Cause;
Closure/opening operation the success for specifying catalyst is judged if consistent, otherwise judges to specify catalyst
Closure/opening operation fails.
Preferably, above-mentioned high voltage power battery contactor detection method, detection specify catalyst closure/
In the whether successful step of opening operation:
Synchronization, only allows a catalyst to close, and for a certain specified catalyst, first detects it
Whether success detects again whether its opening operation is successful to closed procedure, and a certain specified catalyst is right again after disconnecting
Other catalysts are detected.
The present invention also provides a kind of battery management system, including:
First judging unit, for judging whether to receive the command information of starting contactor detection pattern;
Second judging unit, is connected, in the judgement of the first judging unit with first judging unit
As a result for when being, whether the current operating state for judging the battery management system is upper electric waiting state;
Control unit, for being referred to according to command information control when the judged result of the second judging unit is to be
Determine catalyst and perform closure/opening operation;
Detector unit, for being specified the closure/opening operation of catalyst whether successful according to command information detection;
Testing result transmitting element, in the success of specified catalyst closure/opening operation, sending and representing
The testing result signal that the specified catalyst closure/opening operation passes through test, otherwise sends and represents described
Specified catalyst closure/opening operation is not by the testing result signal of test.
Preferably, above-mentioned battery management system, described control unit includes:
First judgment sub-unit, for judging whether the command information is automatic detection command information;
First signal send subelement, for the judged result of the first judgment sub-unit for be when according to pre-
The fixed control signal for sequentially sending closure/disconnection specified catalyst;
First signal receiving subelement, for when the judged result in the first judgment sub-unit is no, connecing
Receive the command information that catalyst is specified in closure/disconnection;
Secondary signal sends subelement, for the command information received according to the first signal receiving subelement
Send the control signal of closure/disconnection specified catalyst.
Preferably, above-mentioned battery management system, the detector unit includes:
Second judgment sub-unit, judges whether that closure/disconnection is received in the first Preset Time specifies contact
The command information of device;
3rd signal sends subelement, when the judged result of the second judgment sub-unit is to be, according to reception
To command information send the control signal of closure/disconnection specified catalyst;
4th signal sends subelement, when the judged result of the second judgment sub-unit is no, according to predetermined
Order sends the control signal of closure/disconnection specified catalyst.
Preferably, above-mentioned battery management system, the detector unit includes:
Collection subelement, for collection measurement terminal voltage signal or the feedback signal of specified catalyst;
3rd judgment sub-unit, for judging the feedback of the measurement terminal voltage signal or specified catalyst
Whether signal is consistent with command information;Closure/opening operation the success for specifying catalyst is judged if consistent,
Otherwise judge the closure/opening operation failure for specifying catalyst.
Preferably, above-mentioned battery management system, in the detector unit:
Synchronization, only allows a catalyst to close, and for a certain specified catalyst, first detects it
Whether success detects again whether its opening operation is successful to closed procedure, and a certain specified catalyst is right again after disconnecting
Other catalysts are detected.
The present invention also provides a kind of high voltage power battery contactor testing equipment, including above-mentioned battery management
System and external control device, wherein:
The external control device includes instruction sending unit, feedback information receiving unit and result judgement list
Unit;
The instruction sending unit, for sending the command information of starting contactor detection pattern to the electricity
Pond management system;
The feedback information receiving unit, for receiving the starting contactor that the battery management system sends
Specified catalyst closure/opening operation that the feedback information of detection pattern and the battery management system send
By the testing result signal tested;
The result judgement unit, receives in the feedback information receiving unit in the second Preset Time
When specified catalyst closure/opening operation passes through the testing result signal of test, judge to specify survey catalyst to close
Conjunction/opening operation otherwise judges to specify catalyst closure/opening operation not by test by test.
Preferably, above-mentioned high voltage power battery contactor testing equipment, the instruction sending unit, also
For after the feedback information receiving unit receives the feedback information of starting contactor detection pattern, sending out
Censorship surveys the whether successful command information of closure/opening operation of specified catalyst to the battery management system
System.
The present invention also provides a kind of automobile including above-mentioned battery management system.
The above-mentioned technical proposal of the present invention has compared to existing technology advantages below:
(1) high voltage power battery contactor detection method of the present invention, equipment, battery management system
And automobile, catalyst detection method therein provided in addition to normal mode of operation for battery management system
It is a kind of dedicated for detect catalyst detection pattern, when battery management system is waited for receive
The control battery management system that external control device sends is into after the instruction of detection pattern into catalyst inspection
Survey pattern, specifies the closure or opening operation/basis of catalyst to prestore according to the instruction of external control device
Detection ordering performs successively the closure or opening operation of catalyst, is contacted by battery management system automatic detection
Whether device function is normal and result is fed back to into external control device.The such scheme of the present invention, can be fast
Speed, judge exactly each catalyst whether due to adhesion, it is aging cause can not to close or disconnect it is former
Barrier.Due to realizing using automatic technology, there is no potential safety hazard.
(2) high voltage power battery contactor detection method of the present invention, equipment, battery management system
And automobile, battery management system is controlled by external control device and is entered after detection pattern, can be by battery
Management system carries out specifying the contact/opening operation of catalyst to be tested according to predefined procedure automatically, this
Mode is more rapidly and efficiently.Contact/disconnection the behaviour to specifying catalyst can also be sent by external control device
After the instruction tested, the contact/opening operation of catalyst is carried out according to instruction by battery management system
Tested, it is this specified catalyst to be detected according to user's request.
(3) high voltage power battery contactor detection method of the present invention, equipment, battery management system
And automobile, in a detection mode, gradually close first and then disconnect in a certain order catalyst, with for the moment
Carve, only allow a catalyst to close, so to ensureing that system can be returned after the completion of a catalyst detection
It is the state that all catalysts all disconnect to original state, therefore is not result in electric high-voltage wind for security
Danger, further ensures the safety of testing result.
Description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to being embodied as the present invention
Example simultaneously combines accompanying drawing, and the present invention is further detailed explanation, wherein
Fig. 1 is the theory diagram of high voltage power battery system;
Fig. 2 is high voltage power battery contactor detection method flow chart described in one embodiment of the invention;
Fig. 3 is high voltage power battery contactor detection method flow chart described in one embodiment of the invention;
Fig. 4 is high voltage power battery contactor detection method flow chart described in one embodiment of the invention;
Fig. 5 is the theory diagram of battery management system described in one embodiment of the invention;
Fig. 6 is the data flow graph of a relation of detector unit described in one embodiment of the invention and battery management system;
Fig. 7 is the theory diagram of high voltage power battery contactor testing equipment described in one embodiment of the invention.
Specific embodiment
Embodiment 1
The present embodiment provides a kind of high voltage power battery contactor detection method, and the method is applied to cell tube
Reason system, as shown in Fig. 2 comprising the steps:
S1:Judge whether the command information for receiving starting contactor detection pattern, if then entering step
S2, if otherwise repeating this step.
S2:Whether the current operating state for judging the battery management system is upper electric waiting state, if
Then enter step S3.In this step, upper electric waiting state refers to that battery management system receives Key On
After signal activation, battery management system self-inspection is completed, and waits the state of entire car controller order.
S3:According to the command information starting contactor detection pattern.
S4:Judge to detect whether the closure/opening operation for specifying catalyst is successful, step is entered if success
S5.Step S6 is entered if unsuccessful.Concrete detection process is as follows:
S41:The feedback signal of collection measurement terminal voltage signal or specified catalyst.
S42:Judge that the terminal voltage signal or the feedback signal of specified catalyst of measuring is with command information
It is no consistent;Closure/opening operation the success for specifying catalyst is judged if consistent, otherwise judges to specify contact
The closure of device/opening operation failure.
Due to being the detection pattern entered on the premise of battery management system is waited for, shape is being waited
During state, all of catalyst is all off-state.So if when detecting to a certain catalyst, should
This is the detection for first carrying out catalyst closed procedure and then the operation for carrying out catalyst disconnection again.
S5:Send the testing result signal for representing the specified catalyst closure/opening operation by test.
S6:Send and represent the specified catalyst closure/opening operation not by the testing result signal of test.
The such scheme that the present embodiment is provided, due to adopting Automatic Measurement Technique completely, therefore, it is possible to it is quick,
Judge exactly each catalyst whether due to adhesion, the aging failure for causing to close or disconnect simultaneously
And, there is no potential safety hazard in reliability height.
The such scheme of the present embodiment, battery management system can automatically be carried out after into detection pattern
Catalyst is detected, or targetedly connect to a certain according to command information under the control of command information
Tentaculum is detected.
As a kind of attainable scheme, can arrange in command information special command symbol be used to refer to be
Catalyst detection is carried out automatically by battery management system to need for being connect again after wait external command information
Tentaculum detects that battery management system is judged according to command information is received.As shown in figure 3, step
S3 is specifically included:
S301:Judge whether the command information is automatic detection command information, if then entering step
S302, otherwise into step S303.
S302:The control signal of closure/disconnection specified catalyst is sent according to predefined procedure.
S303:Receive the command information that catalyst is specified in closure/disconnection.
S304:Send the control signal of closure/disconnection specified catalyst.
As another kind of attainable scheme, can be with prespecified first Preset Time, if pre- first
If battery management system is all not received by detecting the command information of a certain catalyst in the time, then judge into
(this judgment mode needs the equipment for ensureing to send command information to be constantly in normally to enter autosensing mode
Work and can realize data transfer with battery management system) as shown in figure 4, step S3 is specifically included:
S311:Judge whether to receive the instruction letter that catalyst is specified in closure/disconnection in the first Preset Time
Breath, if then entering step S312, otherwise into step S313.
S312:Send the control signal of closure/disconnection specified catalyst.
S313:The control signal of closure/disconnection specified catalyst is sent according to predefined procedure.
In such scheme, battery management system is entered after detection pattern, can be automatic by battery management system
Carry out specifying the contact/opening operation of catalyst to be tested according to predefined procedure.If it should be noted that
In detection process, it is found that a certain catalyst breaks down, such as adhesion fault, then should feed back fault diagnosis knot
Really, and stop to carry out the detection of other catalysts.Reason is as follows:If cathode contact device sticks together, this
When still carry out the diagnosis of positive contact device according to predefined procedure, circuit turn-on, the actual shape of battery can be caused
State is while there is two catalyst closures.Battery management system is entered after detection pattern, it is also possible to by outside
Control device is sent after the instruction that the contact/opening operation to specifying catalyst is tested, by battery management
System is tested according to contact/opening operation that instruction carries out catalyst.Former scheme can more be accelerated
Speed efficiently carries out the detection of catalyst closure/opening operation, and latter scheme can be according to user's request pair
The catalyst specified is detected.Which kind of can be selected concrete application according to practical situation.
Used as a specific embodiment, the catalyst includes positive contact device, cathode contact device and pre-
Fill catalyst.In some cases, it is also possible to there is charging contactor, its detection mode is also identical,
Do not repeating herein.It should be noted that no matter which kind of mode is adopted, for the detection ordering of catalyst
May not necessarily limit, both can according to positive contact device, cathode contact device, preliminary filling catalyst order,
Can also according to cathode contact device, preliminary filling catalyst, positive contact device order, can also be that other are suitable
Sequence.Which kind of no matter takes sequentially detected, detection specify the closure/opening operation of catalyst whether into
In the step of work(, synchronization only allows a catalyst to close, and for a certain specified catalyst,
First detect whether success detects again whether its opening operation is successful, and a certain specified catalyst breaks to its closed procedure
After opening other catalysts are detected again.Gradually close first and then disconnect in a certain order catalyst,
So to ensureing that system can return to the i.e. all catalysts of original state and all break after the completion of a catalyst detection
The state opened, therefore electric high-voltage risk for security is not result in, further ensure testing result
Safety.
Embodiment 2
The present embodiment provides a kind of battery management system, as shown in figure 5, including:
First judging unit 101, for judging whether to receive the instruction letter of starting contactor detection pattern
Breath.
Second judging unit 102, is connected, in the first judging unit with first judging unit 101
101 judged result is for when being, whether the current operating state for judging the battery management system is upper electricity etc.
Treat state.Can be that battery management system is entered after the Key On signal activations for receiving entire car controller
Upper electric waiting state.
Control unit 103, for the judged result of the second judging unit 102 for be when according to command information
Control specifies catalyst to perform closure/opening operation.
Detector unit 104, for the closure/opening operation for specifying catalyst being detected according to command information whether
Success, can judge to specify catalyst according to the feedback signal of measurement terminal voltage signal or specified catalyst
The whether success of closure/opening operation.In waiting state, all of catalyst is all off-state.Cause
If this is detected to a certain catalyst, it should be first to carry out the detection of catalyst closed procedure then
The operation of catalyst disconnection is carried out again.
Testing result transmitting element 105, in the success of specified catalyst closure/opening operation, sending
Testing result signal of the specified catalyst closure/opening operation by test is represented, is otherwise sent and is represented
The specified catalyst closure/opening operation is not by the testing result signal of test.
The such scheme that the present embodiment is provided, due to adopting Automatic Measurement Technique completely, therefore, it is possible to it is quick,
Judge exactly each catalyst whether due to adhesion, the aging failure for causing to close or disconnect simultaneously
And, there is no potential safety hazard in reliability height.
Used as a kind of attainable scheme, above-mentioned control unit 103 includes:
First judgment sub-unit, for judging whether the command information is automatic detection command information.
First signal send subelement, for the judged result of the first judgment sub-unit for be when according to pre-
The fixed control signal for sequentially sending closure/disconnection specified catalyst.
First signal receiving subelement, for when the judged result in the first judgment sub-unit is no, connecing
Receive the command information that catalyst is specified in closure/disconnection.
Secondary signal sends subelement, for the command information received according to the first signal receiving subelement
Send the control signal of closure/disconnection specified catalyst.
Used as another kind of attainable scheme, above-mentioned control unit 103 includes:
Second judgment sub-unit, judges whether that closure/disconnection is received in the first Preset Time specifies contact
The command information of device.
3rd signal sends subelement, when the judged result of the second judgment sub-unit is to be, according to reception
To command information send the control signal of closure/disconnection specified catalyst.
4th signal sends subelement, when the judged result of the second judgment sub-unit is no, according to predetermined
Order sends the control signal of closure/disconnection specified catalyst.
I.e. battery management system is entered after detection pattern, both can be by battery management system automatically according to predetermined
Order carries out specifying the contact/opening operation of catalyst to be tested.Can also be sent by external control device
After the instruction tested the contact/opening operation for specifying catalyst, by battery management system according to instruction
Contact/the opening operation for carrying out catalyst is tested.Former scheme can be more rapidly and efficiently carrying out
The detection of catalyst closure/opening operation, latter scheme can be according to user's request to specified catalyst
Detected.Which kind of can be selected concrete application according to practical situation.
In the present embodiment, the detector unit 104 also includes:
Collection subelement, for collection measurement terminal voltage signal or the feedback signal of specified catalyst;
3rd judgment sub-unit, for judging the feedback of the measurement terminal voltage signal or specified catalyst
Whether signal is consistent with command information;Closure/opening operation the success for specifying catalyst is judged if consistent,
Otherwise judge the closure/opening operation failure for specifying catalyst.
As a specific embodiment, as shown in fig. 6, the detector unit 104 also includes:
Cathode contact device detection sub-unit 1041, for detect cathode contact device closure/opening operation whether into
Work(.
Positive contact device detection sub-unit 1042, for detect positive contact device closure/opening operation whether into
Work(.
Preliminary filling catalyst detection sub-unit 1043, for detect preliminary filling catalyst closure/opening operation whether into
Work(.
Preferably, when the detector unit 104 is detected, synchronization only allows a catalyst
Closure, and for a certain specified catalyst, first detect whether success detects that again it disconnects behaviour to its closed procedure
Whether successful make, a certain specified catalyst is detected again after disconnecting to other catalysts.I.e. according to certain
Order gradually close first and then disconnect catalyst, so to ensureing system energy after the completion of a catalyst detection
The state that the i.e. all catalysts of original state all disconnect enough is returned to, therefore is not result in electric high-voltage safety
Risk, further ensure the safety of testing result.
Embodiment 3
The present embodiment provides a kind of high voltage power battery contactor testing equipment, as shown in fig. 7, comprises real
The battery management system 1 and external control device 2 in example 2 is applied, wherein, the external control device 2
Including instruction sending unit 201, feedback information receiving unit 202 and result judgement unit 203.
The instruction sending unit 201, for sending the command information of starting contactor detection pattern to described
Battery management system 1, battery management system 1 receives starting contactor detection pattern after command information.
The feedback information receiving unit 202, the startup for receiving the transmission of the battery management system 1 connects
The specified catalyst closure that the feedback information of tentaculum detection pattern and the battery management system send/disconnect
The testing result signal that operation passes through test.
The feedback information receiving unit 102, is additionally operable to receive specifying for the transmission of the battery management system 1
The testing result signal that catalyst closure/opening operation passes through test.
The result judgement unit 203, the feedback information receiving unit receives specified in Preset Time
Catalyst closure/opening operation by test testing result signal when, judge specify survey catalyst closure/
Opening operation otherwise judges to specify catalyst closure/opening operation not by test by test.
Preferably, the instruction sending unit 101, is additionally operable to be connect in the feedback information receiving unit 102
After receiving the feedback information of starting contactor detection pattern, closure/disconnection behaviour that catalyst is specified in detection is sent
Make whether successful command information is to the battery management system.
Understand for convenience and illustrate, illustrate by taking cathode contact device detection sub-unit as an example:
Battery management system receives whether the detection cathode contact device of the transmission of instruction sending unit 201 can close
Successfully instruction is closed, into cathode contact device detection sub-unit 1041, battery management system output closure is negative
Pole catalyst control signal, performs the action of closure cathode contact device, and according to detection signal, judges negative
Whether pole catalyst state closes successfully, if closing successfully, sends test and is connect to feedback information by information
Unit 202 is received, external control device 2 is received after feedback information, result judgement unit 203 judges negative pole
The test of catalyst closed procedure passes through, and the result can be shown by display floater.If battery management
System judges that cathode contact device is not closed successfully, then do not send to feedback information receiving unit 202 and test
By information, feedback information receiving unit 202 is not received by the appointed time test by information,
Result judgement unit 203 judges cathode contact device closed procedure not by test.
Battery management system closes cathode contact device and sends detection to external control device 2 in successful execution
After consequential signal, if receiving the instruction for disconnecting cathode contact device, battery management system output disconnects negative
Pole catalyst control signal, performs the action for disconnecting cathode contact device, and according to detection signal, judges negative
Whether pole catalyst state disconnects successfully, if disconnecting successfully, sends to feedback information receiving unit 202 and surveys
Information was pinged, external control device 2 is received after feedback information, result judgement unit 203 judges negative
Pole catalyst opening operation test passes through, and the result can be shown by display floater.If cell tube
Reason system judges that cathode contact device is not turned off successfully, then do not send to feedback information receiving unit 202 and survey
Information was pinged, feedback information receiving unit 202 is not received by the appointed time test by information,
Result judgement unit 203 judges that cathode contact device opening operation is not by test and aobvious by display floater
Show the result.
In above-mentioned specific example, battery management system needs to be entered under the control of external control device
A certain catalyst detection sub-unit carries out specifying whether catalyst closure/opening operation successfully detects.In reality
When border is run, it can be automatically according to preset order, controlling successively each catalyst and perform closure/disconnection
Operation.Positive contact device, preliminary filling catalyst, for example above-mentioned cathode contact device of detection method of charging contactor
Detection method it is identical, repeat no more.
External control device 2 in the present embodiment, can be that special diagnostic apparatuses, or host computer add
CAN lines testing tool or K lines testing tool or other bus test instruments.
Embodiment 4
The present embodiment provides a kind of automobile, and the automobile includes the battery management system provided in embodiment 2.
Therefore, the automobile is electric automobile.Automobile in the present embodiment, can quickly and accurately judge in it
Whether each catalyst for arranging is due to adhesion, the aging failure for causing to close or disconnect.Due to
Realize there is no potential safety hazard using automatic technology.
Although being described in conjunction with the accompanying embodiments of the present invention, those skilled in the art can be not
Depart from the case of the spirit and scope of the present invention that various modification can be adapted and modification, such modification and modification
Each fall within the scope of being defined by the appended claims.
Claims (13)
1. a kind of high voltage power battery contactor detection method, it is characterised in that the method is applied to cell tube
Reason system, comprises the steps:
Judge whether the command information for receiving starting contactor detection pattern;
If whether the current operating state for then judging the battery management system is upper electric waiting state;
If then according to the command information starting contactor detection pattern;
Whether detection specifies the closure/opening operation of catalyst successful;
If specifying catalyst closure/opening operation success, send and represent the specified catalyst closure/disconnection
The testing result signal that operation passes through test, otherwise sends and represents the specified catalyst closure/opening operation
Not by the testing result signal of test.
2. high voltage power battery contactor detection method according to claim 1, it is characterised in that if
Be then according to the step of the command information starting contactor detection pattern in, also include:
Judge whether the command information is automatic detection command information;
If then sending the control signal of closure/disconnection specified catalyst according to predefined procedure;
If otherwise receiving the command information that catalyst is specified in closure/disconnection;
Send the control signal of closure/disconnection specified catalyst.
3. high voltage power battery contactor detection method according to claim 1, it is characterised in that
If then specifying closing for catalyst with detection according to the step of the command information starting contactor detection pattern
Also comprise the steps between the whether successful step of conjunction/opening operation:
Judge whether to receive the command information that catalyst is specified in closure/disconnection in the first Preset Time;
If then sending the control signal of closure/disconnection specified catalyst;
The control signal of closure/disconnection specified catalyst is otherwise sent according to predefined procedure.
4., according to the arbitrary described high voltage power battery contactor detection method of claim 1-3, its feature exists
In detection is specified in the whether successful step of the closure/opening operation of catalyst:
The feedback signal of collection measurement terminal voltage signal or specified catalyst;
Judge feedback signal and the command information of the measurement terminal voltage signal or specified catalyst whether
Cause;
Closure/opening operation the success for specifying catalyst is judged if consistent, otherwise judges to specify catalyst
Closure/opening operation fails.
5. high voltage power battery contactor detection method according to claim 4, it is characterised in that inspection
In surveying the step for specifying the closure/opening operation of catalyst whether successful:
Synchronization, only allows a catalyst to close, and for a certain specified catalyst, first detects it
Whether success detects again whether its opening operation is successful to closed procedure, and a certain specified catalyst is right again after disconnecting
Other catalysts are detected.
6. a kind of battery management system, it is characterised in that include:
First judging unit, for judging whether to receive the command information of starting contactor detection pattern;
Second judging unit, is connected, in the judgement of the first judging unit with first judging unit
As a result for when being, whether the current operating state for judging the battery management system is upper electric waiting state;
Control unit, for being referred to according to command information control when the judged result of the second judging unit is to be
Determine catalyst and perform closure/opening operation;
Detector unit, for being specified the closure/opening operation of catalyst whether successful according to command information detection;
Testing result transmitting element, in the success of specified catalyst closure/opening operation, sending and representing
The testing result signal that the specified catalyst closure/opening operation passes through test, otherwise sends and represents described
Specified catalyst closure/opening operation is not by the testing result signal of test.
7. battery management system according to claim 6, it is characterised in that described control unit includes:
First judgment sub-unit, for judging whether the command information is automatic detection command information;
First signal send subelement, for the judged result of the first judgment sub-unit for be when according to pre-
The fixed control signal for sequentially sending closure/disconnection specified catalyst;
First signal receiving subelement, for when the judged result in the first judgment sub-unit is no, connecing
Receive the command information that catalyst is specified in closure/disconnection;
Secondary signal sends subelement, for the command information received according to the first signal receiving subelement
Send the control signal of closure/disconnection specified catalyst.
8. battery management system according to claim 6, it is characterised in that the detector unit includes:
Second judgment sub-unit, judges whether that closure/disconnection is received in the first Preset Time specifies contact
The command information of device;
3rd signal sends subelement, when the judged result of the second judgment sub-unit is to be, according to reception
To command information send the control signal of closure/disconnection specified catalyst;
4th signal sends subelement, when the judged result of the second judgment sub-unit is no, according to predetermined
Order sends the control signal of closure/disconnection specified catalyst.
9. according to the arbitrary described battery management system of claim 6-8, it is characterised in that the detection list
Unit includes:
Collection subelement, for collection measurement terminal voltage signal or the feedback signal of specified catalyst;
3rd judgment sub-unit, for judging the feedback of the measurement terminal voltage signal or specified catalyst
Whether signal is consistent with command information;Closure/opening operation the success for specifying catalyst is judged if consistent,
Otherwise judge the closure/opening operation failure for specifying catalyst.
10. battery management system according to claim 9, it is characterised in that in the detector unit:
Synchronization, only allows a catalyst to close, and for a certain specified catalyst, first detects it
Whether success detects again whether its opening operation is successful to closed procedure, and a certain specified catalyst is right again after disconnecting
Other catalysts are detected.
11. a kind of high voltage power battery contactor testing equipments, it is characterised in that including claim 6-10
Arbitrary described battery management system and external control device, wherein:
The external control device includes instruction sending unit, feedback information receiving unit and result judgement list
Unit;
The instruction sending unit, for sending the command information of starting contactor detection pattern to the electricity
Pond management system;
The feedback information receiving unit, for receiving the starting contactor that the battery management system sends
Specified catalyst closure/opening operation that the feedback information of detection pattern and the battery management system send
By the testing result signal tested;
The result judgement unit, receives in the feedback information receiving unit in the second Preset Time
When specified catalyst closure/opening operation passes through the testing result signal of test, judge to specify survey catalyst to close
Conjunction/opening operation otherwise judges to specify catalyst closure/opening operation not by test by test.
12. high voltage power battery contactor testing equipments according to claim 11, it is characterised in that;
The instruction sending unit, is additionally operable to receive starting contactor in the feedback information receiving unit
After the feedback information of detection pattern, send detection and specify whether the closure/opening operation of catalyst successfully refers to
Information is made to the battery management system.
A kind of 13. automobiles including the arbitrary described battery management system of claim 6-10.
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