CN110395114A - A kind of the fuse monitoring method and device of vehicle - Google Patents
A kind of the fuse monitoring method and device of vehicle Download PDFInfo
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- CN110395114A CN110395114A CN201910677183.3A CN201910677183A CN110395114A CN 110395114 A CN110395114 A CN 110395114A CN 201910677183 A CN201910677183 A CN 201910677183A CN 110395114 A CN110395114 A CN 110395114A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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Abstract
The embodiment of the invention provides the fuse monitoring methods and device of a kind of vehicle, which comprises obtains current value and the duration of the overload current impact for flowing through the fuse of vehicle；According to the current value of overload current impact and duration, the used life ratio of the fuse is determined；According to the used life ratio, the remaining life ratio of the fuse is determined；According to the remaining life ratio of the fuse, the first state of the fuse is determined, can remind replacement fuse in time according to the first state of fuse later, avoid fuse that unexpected failure occurs and cause serious consequence.
Description
Technical field
The present invention relates to technical field of vehicle, the fuse monitoring method and a kind of vehicle more particularly to a kind of vehicle
Fuse monitoring device.
Background technique
New-energy automobile refers to the vehicle using unconventional vehicle fuel as a source of power, such as with power battery assembly
As the vehicle traction energy, power battery assembly stores big volume and electricity, and voltage generally in 400V or more, belongs to high-voltage electrical apparatus and answers
With.
Power battery assembly is the important component in vehicle, is typically provided with fuse in the car to protect the important of vehicle
Component is from the influence of exception and failure, and since fuse is permanent load device, fuse life can be with use process not
Disconnected decaying, if fuse life terminates in vehicle travel process, vehicle will appear stall, extremely be prone to accidents.
Summary of the invention
In view of the above problems, it proposes the embodiment of the present invention and overcomes the above problem or at least partly in order to provide one kind
A kind of fuse monitoring method of the vehicle to solve the above problems and a kind of corresponding fuse monitoring device of vehicle.
To solve the above-mentioned problems, the embodiment of the invention discloses a kind of fuse monitoring methods of vehicle, comprising:
Obtain current value and the duration of the overload current impact for flowing through the fuse of vehicle；
According to the current value of overload current impact and duration, the used life ratio of the fuse is determined；
According to the used life ratio, the remaining life ratio of the fuse is determined；
According to the remaining life ratio of the fuse, the first state of the fuse is determined.
Optionally, described according to the current-carrying current value and duration, determine the used life of the fuse
Ratio, comprising:
Using the current value and the duration, the energy that the overload current impact generates is calculated；
Determining entire life number corresponding with the energy of overload current impact generation and the duration；
Used life ratio by the inverse of the matched entire life number, as the fuse.
Optionally, determination entire life number corresponding with the energy for carrying rush of current and duration, comprising:
In preset Energy-Time-life curve figure, determining energy and duration pair with the load rush of current
The entire life number answered.
Optionally, the remaining life ratio according to the fuse, determines the first state of the fuse, packet
It includes:
When the remaining life ratio of the fuse is greater than or equal to the default lifetime threshold, the fuse is determined
First state be normal condition；
When the remaining life ratio of the fuse is less than default lifetime threshold, the first state of the fuse is determined
For alarm condition.
Optionally, further includes:
Monitor the fall voltage signal at the fuse both ends；
According to the fall voltage signal at the fuse both ends, the second state of the fuse is determined；Second state
For normal condition or alarm condition；
When in the first state of the fuse and/or second state being alarm condition, the fuse is determined
For alarm condition.
Optionally, the power battery of battery management system of the method applied to vehicle, the fuse and vehicle is total
At connection.
The embodiment of the invention also discloses a kind of fuse monitoring devices of vehicle, comprising:
Rush of current data obtaining module, for obtain flow through the fuse of vehicle overload current impact current value and
Duration；
Used life determining module, current value and duration for being impacted according to the overload current, determine described in
The used life ratio of fuse；
Remaining life determining module, for determining the remaining life ratio of the fuse according to the used life ratio
Example；
First state determining module determines the of the fuse for the remaining life ratio according to the fuse
One state.
Optionally, the used life determining module includes:
Energy balane submodule calculates the overload current impact for using the current value and the duration
The energy of generation；
Entire life determines submodule, for the determining energy generated with overload current impact and the duration pair
The entire life number answered；
Used life determines submodule, for by the inverse of the matched entire life number, as the fuse
Used life ratio.
Optionally, the entire life determines that submodule includes:
Entire life determination unit, in preset Energy-Time-life curve figure, the determining and load electric current to be rushed
The corresponding entire life number of the energy and duration hit.
Optionally, first state determining module includes:
First normal condition determines submodule, is greater than or equal to for the remaining life ratio when the fuse described pre-
If when lifetime threshold, determining that the first state of the fuse is normal condition；
First alarm condition determines submodule, is less than default lifetime threshold for the remaining life ratio when the fuse
When, determine that the first state of the fuse is alarm condition.
Optionally, further includes:
Fall voltage signal detection module, for monitoring the fall voltage signal at the fuse both ends；
Second state determining module determines the fuse for the fall voltage signal according to the fuse both ends
Second state；Second state is normal condition or alarm condition；
Alarm condition determining module, for when the fuse first state and/or second state in for warning
When state, determine that the fuse is alarm condition.
Optionally, the fuse monitoring device is applied to the battery management system of vehicle, the fuse and vehicle
Power battery assembly connection.
The embodiment of the invention also discloses a kind of vehicles, comprising: processor, memory and is stored on the memory simultaneously
The computer program that can be run on the processor is realized when the computer program is executed by the processor and such as takes up an official post
The step of fuse monitoring method of vehicle described in one.
The embodiment of the invention also discloses a kind of computer readable storage mediums, which is characterized in that described computer-readable
Computer program is stored on storage medium, and as above described in any item vehicles are realized when the computer program is executed by processor
Fuse monitoring method the step of.
The embodiment of the present invention includes following advantages:
It, can be by obtaining the current value for the overload current impact for flowing through the fuse of vehicle and holding in the embodiment of the present invention
The continuous time；According to the current value of overload current impact and duration, fuse caused by the secondary overload current impact is determined
Used life ratio；According to used life ratio, the remaining life ratio of fuse is determined；According to the remaining life of fuse ratio
Example, determines the first state of fuse, can remind replacement fuse in time according to the first state of fuse later, avoid melting
Disconnected device occurs unexpected failure and causes serious consequence.
Detailed description of the invention
Fig. 1 is a kind of step flow chart of the fuse monitoring method embodiment one of vehicle of the invention；
Fig. 2 is a kind of step flow chart of the fuse monitoring method embodiment two of vehicle of the invention；
Fig. 3 is a kind of Energy-Time-life curve figure in the embodiment of the present invention；
Fig. 4 is a kind of structure chart of fuse；
Fig. 5 is a kind of structural block diagram of the fuse monitoring device embodiment of vehicle of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Referring to Fig.1, a kind of step flow chart of the fuse monitoring method embodiment one of vehicle of the invention is shown, is had
Body may include steps of:
Step 101, current value and the duration of the overload current impact for flowing through the fuse of vehicle are obtained；
Fuse is a kind of is series at by the overcurrent protection electric appliance in protection circuit.The metalliferous melt of fuse packet,
When by the electric current overrate of protection circuit and by after a certain period of time, making electricity by the heat fusing solution of solution itself generation
Road disconnects, to play a protective role.
Overload current impact refers to that current value is greater than the rush of current of fuse rated current, if overload current occurs in circuit
Impact, and certain time, can to melt, there are certain corrodes, influence fuse service life.
In new energy vehicle, other than power battery assembly, there are also many components require that fuse is arranged to protect,
Such as electronic control unit ECU (Electronic Control Unit), the anti-blocking brake system ABS (antilock of engine
Brake system) etc. the component big to vehicle performance and security implication, and, vulnerable to other electrical equipments interference electric appliance
Part.
In embodiments of the present invention, the monitoring of fuse can the monitoring as associated by the component protected with the fuse
System executes.
For example, for the fuse that the power battery assembly with vehicle is connect, it can be by being associated with power battery assembly
Battery management system the fuse is monitored.
Step 102, according to the current value of overload current impact and duration, the loss longevity of the fuse is determined
Life ratio；
The difference and the difference of duration of the current value of overload current impact, can there is different losses to fuse.Tool
Body, the current value of overload current impact is bigger, and shock duration is longer, and the corrosion of the melt of fuse is more serious.At this
In inventive embodiments, the dissolution extent of melt can be indicated with used life ratio, the current value of overload current impact is bigger,
Shock duration is longer, and used life ratio is also bigger.
A kind of relation table of current value-service life duration-number in the embodiment of the present invention is shown referring to table one.
Table one
As shown in Table 1, different current values and different duration, corresponding different entire life number.In reality
In, in addition to record current value-service life duration-number relationship in the form of a table, can also be held with curve record current value-
The relationship of m- service life number when continuous.
In embodiments of the present invention, the loss longevity that the inverse of entire life number can be impacted as an overload current
Life ratio.
Step 103, according to the used life ratio, the remaining life ratio of the fuse is determined；
Specifically, remaining life ratio of the available fuse before being subjected to overload rush of current, fuse is existed
Remaining life ratio before being subjected to overload rush of current subtracts the used life ratio of this overload current impact, is fused
The current remaining life ratio of device.
Remaining life ratio when fuse uses for the first time is 100%, and fuse is often subjected to an overload current impact all
It will lead to corresponding used life ratio, therefore can constantly determine the remaining life ratio of fuse.
Step 104, according to the remaining life ratio of the fuse, the first state of the fuse is determined.
In a kind of example, the first state of fuse may include normal condition and alarm condition.
Normal condition refer to fuse can continue to using state, alarm condition refers to that fuse can not continue to use
State.
When fuse remaining life ratio be not less than lifetime threshold, then can determine that the first state of fuse is normal
State.Default lifetime threshold can be arranged by vehicle manufacturer, such as it is 5% that default lifetime threshold, which is arranged, i.e., when remaining life ratio
When example is not less than 5%, it is determined that the first state of fuse is normal condition.
When the remaining life ratio of fuse is less than lifetime threshold, then the first state of fuse can be determined for warning
State.When the first state of fuse is alarm condition, reminder message can be generated, need replacing fuse to remind.
In the car, reminder message can be sent to backstage maintenance system, to notify replacement fuse in time.Due to vehicle
In, it is monitored there may be many fuses, therefore reminder message may include the information of the fuse, to inform being which is replaced
A fuse.For example, reminder message can be " fuse connecting with power battery assembly needs replacing ".
It, can be by obtaining the current value for the overload current impact for flowing through the fuse of vehicle and holding in the embodiment of the present invention
The continuous time；According to the current value of overload current impact and duration, fuse caused by the secondary overload current impact is determined
Used life ratio；According to used life ratio, the remaining life ratio of fuse is determined；According to the remaining life of fuse ratio
Example, determines the first state of fuse, can remind replacement fuse in time according to the first state of fuse later, avoid melting
Disconnected device occurs unexpected failure and causes serious consequence.
Referring to Fig. 2, a kind of step flow chart of the fuse monitoring method embodiment two of vehicle of the invention is shown, is had
Body may include steps of:
Step 201, current value and the duration of the overload current impact for flowing through the fuse of vehicle are obtained；
For ease of understanding, it is monitored in the present embodiment with the fuse that the power battery assembly for vehicle is connected
For be illustrated.It in the car, can be battery management system with the associated monitoring system of power battery assembly.
In the concrete realization, battery management system can acquire the overload current impact for flowing through fuse by current divider
Current value acquires the duration of overload current impact by timer.
Step 202, using the current value and the duration, the energy that the overload current impact generates is calculated；
Battery management system can use current value and duration, computation overload rush of current generate ENERGY E=
I2T, wherein I is electric current, and t is the duration.
Step 203, entire life time corresponding with the energy of overload current impact generation and the duration is determined
Number；
Access times of the entire life of fuse usually with fuse under various working are measured, and the operating condition of fuse is
The case where referring to energy and the duration for the overload current impact generation for flowing through fuse.For example, the fuse under certain operating condition
The number that can bear rush of current is 10W times.Different energy can cause different losses to fuse, so that fusing utensil
There is different entire life numbers.The entire life number of fuse can be measured according to a large amount of actual experimental datas, in measurement,
The energy constant that overload current impact generates is generally remained, measurement fuse can be subjected to the impact of how many times overload current.
It in embodiments of the present invention, can be determining electric with the overload in preset Energy-Time-life curve figure
The energy and duration corresponding entire life number that stream impact generates.
It is illustrated in figure 3 a kind of Energy-Time-life curve figure in the embodiment of the present invention.In figure, abscissa is the time,
Ordinate is energy, and curve indicates that the entire life number of the corresponding fuse of point on same curves is identical in figure, six curves
Corresponding entire life number is respectively 1,102、103、104、105、106It is secondary.Point indicates that the point is corresponding total below a certain curve
Service life number is greater than the corresponding number of the curve；Point indicates that the corresponding entire life number of the point is less than and is somebody's turn to do above a certain curve
The corresponding number of curve.Energy-Time-life curve figure can specifically be generated according to lot of experimental data.
For example, then ENERGY E is 10 if electric current is 10A, time 10S3, energy E is 10 in figure3, the time is the point P of 10S
106Curve under, then show in this case, the entire life number of fuse is 106More than secondary.
It, can also be from other in advance except through searching the entire life number of fuse from Energy-Time-life curve
Search the entire life number of fuse in determining Energy-Time-service life corresponding relationship, for example, from it is pre-generated energy-when
M- lifetime data table searches the entire life number of fuse according to energy and duration.
Step 204, the used life ratio by the inverse of the matched entire life number, as the fuse；
Assuming that the corresponding entire life number of present overload rush of current is L, then the used life ratio of fuse is 1/L.
For example, entire life number is 1000 times, then used life ratio is 0.001, i.e., 0.1%.Entire life number is
10000 numbers, then used life ratio is 0.0001, i.e., 0.01%.
Step 205, according to the used life ratio, the remaining life ratio of the fuse is determined；
Specifically, remaining life ratio of the available fuse before being subjected to overload rush of current, fuse is existed
Remaining life ratio before being subjected to overload rush of current subtracts the used life ratio of this overload current impact, is fused
The current remaining life ratio of device.
For example, the remaining life of fusing is 90% before being subjected to an overload current impact, it is being subjected to once overloading electricity
After stream impact, used life ratio is 0.001%, then remaining life is 89.999%.
Step 206, according to the remaining life ratio of the fuse, the first state of the fuse is determined；Described
One state is normal condition or alarm condition；
The first state of fuse may include normal condition and alarm condition.
When fuse remaining life ratio be not less than lifetime threshold, then can determine that the first state of fuse is normal
State.When the remaining life ratio of fuse is less than lifetime threshold, then the first state of fuse can be determined for warning shape
State.
When the first state of fuse is alarm condition, reminder message is can be generated in battery management system.Prompting is disappeared
Breath is sent to the backstage maintenance system of vehicle, to notify replacement fuse in time, to remind replacement fuse in time, avoids melting
Disconnected device occurs unexpected failure and causes serious consequence.
Step 207, the fall voltage signal at the fuse both ends is monitored；
Be illustrated in figure 4 a kind of structure chart of fuse, the narrow neck 41 of the inner melt of fuse 40 be fuse 40 the most
Weak place, fuse are impacted in overload current, and after causing melt certain corrode occur, narrow 41 size of neck of melt can reduce, electricity
Circulation path becomes smaller, and 40 internal resistance of fuse is caused to rise.
At the both ends of fuse 42 and 43 collection point is installed respectively, acquires the fall voltage signal at fuse both ends.
Step 208, according to the fall voltage signal at the fuse both ends, the second state of the fuse is determined；It is described
Second state is normal condition or alarm condition.
When fuse internal resistance rising, fall voltage signal also synchronous rising is collected.When fall voltage signal is less than predeterminated voltage
When dropping threshold value, it can determine that the second state of fuse is normal condition.When fall voltage signal drops threshold value not less than predeterminated voltage
When, it can determine that the second state of fuse is alarm condition.
Step 209, when in the first state of the fuse and/or second state being alarm condition, institute is determined
Stating fuse is alarm condition.
In the embodiment of the present invention, the first state of fuse can be determined according to the remaining life ratio of fuse, first
State can be normal condition or alarm condition.According to the fall voltage signal at fuse both ends, the of fuse can also be determined
Two-state, the second state can be normal condition or alarm condition.
In some cases, first state and the second state may be two different states, for example, first state is
Normal condition, the second state are alarm condition.In this case, as long as having one in first state or the second state to alert
State can then determine that fuse is alarm condition.
When battery management system determines that fuse is alarm condition, then reminder message is generated.Reminder message is sent to
The backstage maintenance system of vehicle, to remind replacement fuse in time, avoids fuse to notify replacement fuse in time
It is unexpected that failure cause serious consequence.
It should be noted that for simple description, therefore, it is stated as a series of action groups for embodiment of the method
It closes, but those skilled in the art should understand that, embodiment of that present invention are not limited by the describe sequence of actions, because according to
According to the embodiment of the present invention, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art also should
Know, the embodiments described in the specification are all preferred embodiments, and the related movement not necessarily present invention is implemented
Necessary to example.
Referring to Fig. 5, a kind of structural block diagram of the fuse monitoring device embodiment of vehicle of the invention is shown, specifically may be used
To include following module:
Rush of current data obtaining module 501, for obtaining the electric current for flowing through the overload current impact of the fuse of vehicle
Value and duration；
Used life determining module 502, current value and duration for being impacted according to the overload current, determines institute
State the used life ratio of fuse；
Remaining life determining module 503, for determining the remaining life of the fuse according to the used life ratio
Ratio；
First state determining module 504 determines the fuse for the remaining life ratio according to the fuse
First state.
In embodiments of the present invention, the used life determining module 502 may include:
Energy balane submodule calculates the overload current impact for using the current value and the duration
The energy of generation；
Entire life determines submodule, for the determining energy generated with overload current impact and the duration pair
The entire life number answered；
Used life determines submodule, for by the inverse of the matched entire life number, as the fuse
Used life ratio.
In embodiments of the present invention, the entire life determines that submodule may include:
Entire life determination unit, in preset Energy-Time-life curve figure, the determining and load electric current to be rushed
The corresponding entire life number of the energy and duration hit.
In embodiments of the present invention, first state determining module 504 may include:
First normal condition determines submodule, is greater than or equal to for the remaining life ratio when the fuse described pre-
If when lifetime threshold, determining that the first state of the fuse is normal condition；
First alarm condition determines submodule, is less than default lifetime threshold for the remaining life ratio when the fuse
When, determine that the first state of the fuse is alarm condition.
In embodiments of the present invention, the device can also include:
Fall voltage signal detection module, for monitoring the fall voltage signal at the fuse both ends；
Second state determining module determines the fuse for the fall voltage signal according to the fuse both ends
Second state；Second state is normal condition or alarm condition；
Alarm condition determining module, for when the fuse first state and/or second state in for warning
When state, determine that the fuse is alarm condition.
In embodiments of the present invention, the fuse monitoring device can be applied to the battery management system of vehicle,
The connection of the power battery assembly of the fuse and vehicle.
It, can be by obtaining the current value for the overload current impact for flowing through the fuse of vehicle and holding in the embodiment of the present invention
The continuous time；According to the current value of overload current impact and duration, fuse caused by the secondary overload current impact is determined
Used life ratio；According to used life ratio, the remaining life ratio of fuse is determined；According to the remaining life of fuse ratio
Example, determines the state of fuse, can remind replacement fuse in time according to the state of fuse later, avoid fuse
It is unexpected that failure cause serious consequence.
For device embodiment, since it is basically similar to the method embodiment, related so being described relatively simple
Place illustrates referring to the part of embodiment of the method.
The embodiment of the invention also provides a kind of vehicles, comprising:
Including processor, memory and it is stored in the computer that can be run on the memory and on the processor
Program, the computer program realize each process of the fuse monitoring method embodiment of above-mentioned vehicle when being executed by processor,
And identical technical effect can be reached, to avoid repeating, which is not described herein again.
The embodiment of the invention also provides a kind of computer readable storage medium, meter is stored on computer readable storage medium
Calculation machine program realizes each mistake of the fuse monitoring method embodiment of above-mentioned vehicle when computer program is executed by processor
Journey, and identical technical effect can be reached, to avoid repeating, which is not described herein again.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, terminal device (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are set to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing terminals
Standby processor is to generate a machine, so that being held by the processor of computer or other programmable data processing terminal devices
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing terminal devices
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing terminal devices, so that
Series of operation steps are executed on computer or other programmable terminal equipments to generate computer implemented processing, thus
The instruction executed on computer or other programmable terminal equipments is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
The fuse of the fuse monitoring method to a kind of vehicle provided by the present invention and a kind of vehicle monitors dress above
It sets, is described in detail, used herein a specific example illustrates the principle and implementation of the invention, above
The explanation of embodiment is merely used to help understand method and its core concept of the invention；Meanwhile for the general skill of this field
Art personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this
Description should not be construed as limiting the invention.
Claims (10)
1. a kind of fuse monitoring method of vehicle characterized by comprising
Obtain current value and the duration of the overload current impact for flowing through the fuse of vehicle；
According to the current value of overload current impact and duration, the used life ratio of the fuse is determined；
According to the used life ratio, the remaining life ratio of the fuse is determined；
According to the remaining life ratio of the fuse, the first state of the fuse is determined.
2. the method according to claim 1, wherein it is described according to the current-carrying current value and it is lasting when
Between, determine the used life ratio of the fuse, comprising:
Using the current value and the duration, the energy that the overload current impact generates is calculated；
Determining entire life number corresponding with the energy of overload current impact generation and the duration；
Used life ratio by the inverse of the matched entire life number, as the fuse.
3. according to the method described in claim 2, it is characterized in that, the determination is with the energy for carrying rush of current and persistently
Time corresponding entire life number, comprising:
It is determining corresponding with the energy for carrying rush of current and duration in preset Energy-Time-life curve figure
Entire life number.
4. the method according to claim 1, wherein the remaining life ratio according to the fuse, really
The first state of the fixed fuse, comprising:
When the remaining life ratio of the fuse is greater than or equal to the default lifetime threshold, the of the fuse is determined
One state is normal condition；
When the remaining life ratio of the fuse is less than default lifetime threshold, determine the first state of the fuse for police
It lodges a complaint with state.
5. according to the method described in claim 4, it is characterized by further comprising:
Monitor the fall voltage signal at the fuse both ends；
According to the fall voltage signal at the fuse both ends, the second state of the fuse is determined；Second state is positive
Normal state or alarm condition；
When in the first state of the fuse and/or second state being alarm condition, determine the fuse for police
It lodges a complaint with state.
6. the method according to claim 1, wherein the method is applied to the battery management system of vehicle, institute
The power battery assembly for stating fuse and vehicle connects.
7. a kind of fuse monitoring device of vehicle characterized by comprising
Rush of current data obtaining module, for obtaining the current value for the overload current impact for flowing through the fuse of vehicle and continuing
Time；
Used life determining module, current value and duration for being impacted according to the overload current, determines the fusing
The used life ratio of device；
Remaining life determining module, for determining the remaining life ratio of the fuse according to the used life ratio；
First state determining module determines the first shape of the fuse for the remaining life ratio according to the fuse
State.
8. device according to claim 7, which is characterized in that the used life determining module includes:
Energy balane submodule calculates the overload current impact and generates for using the current value and the duration
Energy；
Entire life determines submodule, corresponding for the determining energy and the duration generated with overload current impact
Entire life number；
Used life determines submodule, for the loss by the inverse of the matched entire life number, as the fuse
Service life ratio.
9. a kind of vehicle characterized by comprising processor, memory and be stored on the memory and can be described
The computer program run on processor is realized when the computer program is executed by the processor as in claim 1-6
The step of fuse monitoring method of described in any item vehicles.
10. a kind of computer readable storage medium, which is characterized in that store computer journey on the computer readable storage medium
Sequence realizes that the fuse such as vehicle described in any one of claims 1 to 6 is supervised when the computer program is executed by processor
The step of prosecutor method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677183.3A CN110395114A (en) | 2019-07-25 | 2019-07-25 | A kind of the fuse monitoring method and device of vehicle |
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| CN110823544A (en) * | 2019-11-20 | 2020-02-21 | 中国船舶重工集团海装风电股份有限公司 | Method, device, equipment and medium for calculating residual service life of variable-pitch motor brake |
| CN112347569A (en) * | 2020-11-30 | 2021-02-09 | 中国第一汽车股份有限公司 | Contactor control method, device and equipment conforming to functional safety and storage medium |
| CN114486301A (en) * | 2022-02-23 | 2022-05-13 | 武汉路特斯汽车有限公司 | Service life monitoring method of electronic control shock absorber assembly and electronic control shock absorber assembly |
| EP4086646A1 (en) * | 2021-05-03 | 2022-11-09 | Volvo Truck Corporation | A method for estimating the ageing state of fuse elements and an electrical fuse maintenance system |
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| CN114486301A (en) * | 2022-02-23 | 2022-05-13 | 武汉路特斯汽车有限公司 | Service life monitoring method of electronic control shock absorber assembly and electronic control shock absorber assembly |
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Application publication date: 20191101 |