CN107508341A - Electric automobile supplying power for outside method, apparatus and system - Google Patents
Electric automobile supplying power for outside method, apparatus and system Download PDFInfo
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- CN107508341A CN107508341A CN201710686030.6A CN201710686030A CN107508341A CN 107508341 A CN107508341 A CN 107508341A CN 201710686030 A CN201710686030 A CN 201710686030A CN 107508341 A CN107508341 A CN 107508341A
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- electric
- electric appliance
- appliance load
- load
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000012545 processing Methods 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 17
- 230000001939 inductive effect Effects 0.000 claims description 9
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 7
- 230000006870 function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 108010022579 ATP dependent 26S protease Proteins 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- 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
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/448—End of discharge regulating measures
-
- H02J2007/0067—
-
- 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
-
- 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
Abstract
The invention discloses a kind of electric automobile supplying power for outside method, apparatus and system, wherein method includes：When electrokinetic cell is that electric appliance load is powered, the electric current and voltage of electric appliance load are obtained；According to the electric current and voltage of the electric appliance load, loadtype is judged；According to the loadtype, maximum allowed current and duration of overload corresponding to the electric appliance load are determined；The electrokinetic cell is controlled to power the electric appliance load according to the maximum allowed current and duration of overload.Electric automobile supplying power for outside method, apparatus and system provided by the invention, load characteristic can be assessed, different maximum allowed currents is provided for different electric appliance loads, adaptability is stronger, damage load and electric automobile are effectively prevented, improves the security reliability and economy of electric automobile supplying power for outside.
Description
Technical field
The present invention relates to technical field of automobile control, more particularly to a kind of electric automobile supplying power for outside method, apparatus and it is
System.
Background technology
Electric automobile can be used as portable power source, externally export household electricity whenever and wherever possible, in the feelings of no power supply supply
Under condition, the electrokinetic cell in electric automobile can be that electric appliance load is powered, it is ensured that electric appliance load normal operation.
At present, the protection of electric automobile supplying power for outside system is mainly based on monitoring, for example, monitoring electrical equipment with it is electronic
Whether the connection of automobile power cell is normal, whether the normal, electric current of electrical equipment is the work of electrokinetic cell supplying power for outside system
It is no to exceed maximum allowed current etc..And existing supplying power for outside guard method, load characteristic can not be assessed, it is different
Maximum allowed current corresponding to electric appliance load is constant, causes adaptability poor, is easily damaged load and electric automobile.
The content of the invention
The present invention provides a kind of electric automobile supplying power for outside method, apparatus and system, external in the prior art to solve
Power supply protection method adaptability is poor, is easily damaged the technical problem of load and electric automobile.
Therefore, the present invention provides a kind of electric automobile supplying power for outside method, comprise the following steps：
When electrokinetic cell is that electric appliance load is powered, the electric current and voltage of electric appliance load are obtained；
According to the electric current and voltage of the electric appliance load, loadtype is judged；
According to the loadtype, maximum allowed current and duration of overload corresponding to the electric appliance load are determined；
The electrokinetic cell is controlled to power the electric appliance load according to the maximum allowed current and duration of overload.
Alternatively, it is described that the electrokinetic cell is controlled to the electricity according to the maximum allowed current and duration of overload
Device load supplying, including：
Judge whether the electric current of the electric appliance load is more than the maximum allowed current and continues the duration of overload；
If so, the electrokinetic cell is then controlled to stop powering to the electric appliance load.
Alternatively, the electric current and voltage according to the electric appliance load, judges loadtype, including：
If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；
If the electric current of the electric appliance load is ahead of voltage, judge the electric appliance load for capacitive load；
If phase difference is not present with voltage in the electric current of the electric appliance load, judge the electric appliance load for resistive load.
Alternatively, it is described according to the loadtype, determine maximum allowed current and overload corresponding to the electric appliance load
Duration, including：
Maximum allowed current and duration of overload corresponding to the loadtype are determined by look-up table.
Alternatively, it is described according to the loadtype, determine maximum allowed current and overload corresponding to the electric appliance load
Duration, including：
According to the loadtype, when determining that overload magnification corresponding to the loadtype and overload continue by look-up table
Between；
According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
Alternatively, it is described according to the loadtype, overload magnification corresponding to the loadtype is determined by look-up table
And duration of overload, including：
According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；
According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and overload continue
Time.
Alternatively, before electrokinetic cell is electric appliance load power supply, in addition to：
Obtain the voltage of electrokinetic cell；
Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；
If being more than, allow the electrokinetic cell supplying power for outside.
Alternatively, the electric automobile supplying power for outside method also includes：
During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；
Judge whether the voltage of the electrokinetic cell is less than predetermined voltage threshold；
If being less than, forbid the electrokinetic cell supplying power for outside.
The present invention also provides a kind of electric automobile supplying power for outside device, including：
Acquisition module, for when electrokinetic cell is that electric appliance load is powered, obtaining the electric current and voltage of electric appliance load；
Judge module, for the electric current and voltage according to the electric appliance load, judge loadtype；
Determining module, for according to the loadtype, determining maximum allowed current and mistake corresponding to the electric appliance load
Carry the duration；
Control module, for controlling the electrokinetic cell to described according to the maximum allowed current and duration of overload
Electric appliance load is powered.
Alternatively, the control module is specifically used for：
Judge whether the electric current of the electric appliance load is more than the maximum allowed current and continues the duration of overload；
If so, the electrokinetic cell is then controlled to stop powering to the electric appliance load.
Alternatively, the judge module is specifically used for：
If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；
If the electric current of the electric appliance load is ahead of voltage, judge the electric appliance load for capacitive load；
If phase difference is not present with voltage in the electric current of the electric appliance load, judge the electric appliance load for resistive load.
Alternatively, the determining module is specifically used for：
Maximum allowed current and duration of overload corresponding to the loadtype are determined by look-up table.
Alternatively, the determining module is specifically used for：
According to the loadtype, when determining that overload magnification corresponding to the loadtype and overload continue by look-up table
Between；
According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
Alternatively, the determining module is specifically used for：
According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；
According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and overload continue
Time；
According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
Alternatively, the acquisition module is additionally operable to：
Obtain the voltage of electrokinetic cell；
Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；
If being more than, allow the electrokinetic cell supplying power for outside.
Alternatively, the acquisition module is additionally operable to：
During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；
Judge whether the voltage of the electrokinetic cell is less than predetermined voltage threshold；
If being less than, forbid the electrokinetic cell supplying power for outside.
The present invention also provides a kind of electric automobile supplying power for outside system, including：Electrokinetic cell and processing unit, the processing
Device is used to perform the electric automobile supplying power for outside method described in any of the above-described.
Electric automobile supplying power for outside method, apparatus and system provided by the invention, by being electric appliance load in electrokinetic cell
During power supply, the electric current and voltage of electric appliance load are obtained, according to the electric current and voltage of the electric appliance load, judges loadtype, root
According to the loadtype, maximum allowed current and duration of overload corresponding to the electric appliance load are determined, according to the maximum
Allow electric current and duration of overload to control the electrokinetic cell to power the electric appliance load, load characteristic can be commented
Estimate, different maximum allowed currents is provided for different electric appliance load, adaptability is stronger, effectively prevents damage load and electronic
Automobile, improve the security reliability and economy of electric automobile supplying power for outside.
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
Fig. 1 is the schematic flow sheet for the electric automobile supplying power for outside method that the embodiment of the present invention one provides；
Fig. 2 is the schematic flow sheet for the electric automobile supplying power for outside method that the embodiment of the present invention two provides；
Fig. 3 is the structured flowchart for the electric automobile supplying power for outside device that the embodiment of the present invention three provides；
Fig. 4 is the structured flowchart for the electric automobile supplying power for outside system that the embodiment of the present invention four provides.
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.
The electric automobile supplying power for outside method, apparatus of the embodiment of the present invention and system described below in conjunction with the accompanying drawings.
Embodiment one
The embodiment of the present invention one provides a kind of electric automobile supplying power for outside method.Fig. 1 is what the embodiment of the present invention one provided
The schematic flow sheet of electric automobile supplying power for outside method.As shown in figure 1, the method in the present embodiment, may comprise steps of：
Step 101, when electrokinetic cell is that electric appliance load is powered, obtain the electric current and voltage of electric appliance load.
Method in the present embodiment can apply to the scene that electric automobile power battery is electric appliance load power supply.The side
The executive agent of method can be the processing unit being connected with the electrokinetic cell.
During electrokinetic cell is electric appliance load power supply, the electric current and voltage of electric appliance load can be obtained.Here it is electric
The electric current and voltage of device load can refer to the electric current and voltage of electric appliance load input, i.e., the input current of described electric appliance load
And input voltage.
Preferably, before electrokinetic cell is electric appliance load power supply, the method in the present embodiment can also include：Obtain
The voltage of electrokinetic cell；Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；If being more than, allow described dynamic
Power battery supplying power for outside.
The voltage of the electrokinetic cell is more than predetermined voltage threshold, illustrates that the electricity of electrokinetic cell is sufficient, can externally supply
Electricity, now electrokinetic cell is allowed outwards to export electric energy, when there is electric appliance load to be connected to the electrokinetic cell, the electrokinetic cell
Can starts to power for the electric appliance load, improves electric automobile energy utilization rate.
If the voltage of the electrokinetic cell is less than predetermined voltage threshold, illustrate electrokinetic cell not enough power supply, can now prohibit
The only electrokinetic cell supplying power for outside, is protected to electrokinetic cell.
Step 102, electric current and voltage according to the electric appliance load, judge loadtype.
Specifically, the negative of the electric appliance load can be determined according to the electric current of the electric appliance load and the phase difference of voltage
Carry type.
If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；If the electricity
The electric current of device load is ahead of voltage, then judges the electric appliance load for capacitive load；If the electric current of the electric appliance load and electricity
Phase difference is not present in pressure, then judges the electric appliance load for resistive load.
Step 103, according to the loadtype, determine that maximum allowed current corresponding to the electric appliance load and overload continue
Time.
Wherein, the electric current of electric appliance load input is equal with the output line current of electric automobile, and the electric appliance load is corresponding
Maximum allowed current be electric automobile maximum allowable output line current.
In the present embodiment, it can determine that maximum allowed current corresponding to the loadtype and overload continue by look-up table
Time.
Specifically, loadtype and maximum allowed current, duration of overload can have been pre-saved in processing unit
The form of corresponding relation, it is determined that after loadtype, corresponding maximum allowed current can be obtained with table look-at and overload continues
Time.
Corresponding relation between the loadtype and maximum allowed current, duration of overload can pass through the system of early stage
Maximum allowed current corresponding to different type electric appliance load and duration of overload determine in meter experiment.
Preferably, maximum allowed current corresponding to the loadtype can be the electric appliance load of the type in industry
The minimum value of maximum allowed current；Duration of overload corresponding to the loadtype can be that the electrical equipment of the type in industry is born
The minimum value of duration of overload corresponding to load.
For example, conventional resistive electric appliance load mainly has tri- kinds of A, B, C, maximum allowed current corresponding to A is 5A, crosses and holds
The continuous time is 2s, and maximum allowed current corresponding to B is 6A, and maximum allowed current corresponding to duration of overload 3s, C is 7A,
Duration of overload is 1.5s, then maximum allowed current corresponding to resistive load can be 5A, and duration of overload can be
1.5s。
In another example conventional capacitive electric appliance load mainly has two kinds of D and E, maximum allowed current corresponding to D is 1A, overload
Duration is 50ms, and maximum allowed current corresponding to E is 2A, duration of overload 100ms, then corresponding to capacitive load most
Big to allow electric current to be 1A, duration of overload can be 50ms.
Step 104, the electrokinetic cell controlled to the electrical equipment according to the maximum allowed current and duration of overload
Load supplying.
Specifically, it can be determined that whether the electric current of the electric appliance load is more than the maximum allowed current and continues the mistake
The duration is carried, if so, then controlling the electrokinetic cell to stop powering to the electric appliance load.
In electric appliance load running, maximum allowed current and duration of overload are obtained according to loadtype, in electricity
The electric current of device load is when exceeding the maximum allowed current, beginning timing, when corresponding to load in duration of overload, excessively stream
Failure does not eliminate also, then takes measures such as to close drive circuit so that electrokinetic cell no longer powers to electric appliance load；When
Load in the duration of overload allowed, load current is dropped to less than maximum allowed current, and it is due to dry to illustrate this over-current phenomenon avoidance
Disturb or other reasonses caused by, then this over-current phenomenon avoidance can be taken no action to, prevent excessively stream malfunction situation.
When electric appliance load starts, larger starting current may be produced, and protection control strategy of the prior art,
Detect that excessively stream just acts, stop supplying power for outside, it is possible to cause protection misoperation, influence supplying power for outside performance.And this implementation
Method in example, determines maximum allowed current and duration of overload, according to maximum allowable electricity according to the loadtype of acquisition
Stream and duration of overload decide whether normally-open supplying power for outside, different loads using different maximum allowed currents and
Duration of overload, excessively stream caused by can avoiding appliance starting to a certain extent malfunction.
In actual applications, electrokinetic cell can produce alternating current by drive circuit inversion and supply electric appliance load, wherein
The frequency of alternating current is 50Hz, and processing unit collection at most 1 cycle is 20 milliseconds of load current and load voltage, you can is sentenced
Break and the type of electric appliance load, and the cycle of processing module is Microsecond grade, it can allow in duration of overload in electric appliance load
Over current fault is handled, ensures the safety of electrokinetic cell and electric appliance load.
The electric automobile supplying power for outside method that the present embodiment provides, by when electrokinetic cell is that electric appliance load is powered, obtaining
The electric current and voltage of electricity getting device load, according to the electric current and voltage of the electric appliance load, judge loadtype, according to the load
Type, determine maximum allowed current and duration of overload corresponding to the electric appliance load, according to the maximum allowed current and
Duration of overload controls the electrokinetic cell to power the electric appliance load, load characteristic can be assessed, for not
Same electric appliance load provides different maximum allowed currents, and adaptability is stronger, effectively prevents damage load and electric automobile, improves
The security reliability and economy of electric automobile supplying power for outside.
On the basis of the technical scheme that above-described embodiment provides, it is preferred that the electric automobile supplying power for outside method
It can also include：
During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；Judge the power
Whether the voltage of battery is less than predetermined voltage threshold；If being less than, forbid the electrokinetic cell supplying power for outside, can be effectively to dynamic
Power battery is protected.
Embodiment two
The embodiment of the present invention two provides a kind of electric automobile supplying power for outside method.Fig. 2 is what the embodiment of the present invention two provided
The schematic flow sheet of electric automobile supplying power for outside method.As shown in Fig. 2 the method in the present embodiment, can include：
Step 201, when electrokinetic cell is that electric appliance load is powered, obtain the electric current and voltage of electric appliance load.
Step 202, electric current and voltage according to the electric appliance load, judge loadtype.
In the present embodiment, concrete methods of realizing and the step 101 in embodiment one to step of step 201 to step 202
102 is similar, and here is omitted.
Step 203, according to the loadtype, overload magnification and mistake corresponding to the loadtype are determined by look-up table
Carry the duration.
Step 204, output-current rating and the overload magnification according to electric automobile, determine maximum allowed current.
In the present embodiment, the electric appliance load is determined according to the loadtype to realize by step 203 to step 204
Corresponding maximum allowed current and duration of overload.
Specifically, overload magnification corresponding to the loadtype can be determined by look-up table according to the loadtype
And duration of overload.Wherein, overload magnification corresponding to the loadtype can be that the electrical equipment of the type in statistical test is born
The minimum value of the overload magnification of load.
For example, conventional resistive electric appliance load mainly has tri- kinds of A, B, C, overload magnification corresponding to A is mistake corresponding to 1.1, B
It is that overload magnification corresponding to 1.2, C is 1.3 to carry multiple, then overload magnification corresponding to resistive load can be 1.1.
In another example conventional capacitive electric appliance load mainly has two kinds of D and E, overload magnification corresponding to D is mistake corresponding to 2, E
It is 3 to carry multiple, then overload magnification corresponding to inductive load can be 2.
In output-current rating that can be according to electric automobile it is determined that after overload magnification and the overload magnification, it is determined that most
It is big to allow electric current.The output-current rating that the maximum allowed current can be equal to electric automobile is multiplied by the overload magnification.Example
Such as, the output-current rating of electric automobile is 10A, and the overload magnification is 1.1, then the maximum allowed current is 11A.
Wherein, the output-current rating of the electric automobile can refer to maximum output of the electric automobile in normal work
Electric current.The output-current rating can determine according to the peak power and output voltage of electric automobile supplying power for outside.
In the present embodiment, by obtaining the electric current and voltage of electric appliance load, the type of electric appliance load can be obtained.According to negative
The type of load, overload magnification and duration of overload can be obtained, overload magnification corresponding to different types of load and it is lasting when
Between be respectively：Resistive load KrAnd Tr, capacitive load KcAnd Tc, inductive load KlAnd Tl；According to current overload multiple, you can obtain
Different electric appliance loads allow the maximum current i.e. maximum allowed current passed through, as the threshold value of overcurrent protection, are respectively：It is resistive negative
Carry Irmax, capacitive load Icmax, inductive load Ilmax。
Preferably, in step 203 according to the loadtype, determined by look-up table corresponding to the loadtype
Overload magnification and duration of overload, it can include：
According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；
According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and duration of overload.
Wherein, the power factor can be the electric appliance load electric current and voltage phase difference cosine.Different
Overload magnification is differed corresponding to loadtype, and overload magnification corresponding to same loadtype, different power factors also may be used
To differ.Overload magnification corresponding to the loadtype and the power factor, can be in industry the type and power because
The minimum value of overload magnification corresponding to number.
In actual applications, power factor can be divided into multiple scopes, mistake corresponding to the power factor of different range
Carrying multiple can be different.For example, power factor can be divided into three scopes：0.6 to 0.7,0.7 to 0.8,0.8 to 1.
Assuming that conventional capacitive electric appliance load mainly has two kinds of D and E, load D of the power factor in the range of 0.6 to 0.7
Corresponding overload magnification be 2.1, overload magnification corresponding to load D of the power factor in the range of 0.7 to 0.8 be 2.2, power because
Overload magnification corresponding to load D of the number in the range of 0.8 to 1 is 2.3；E pairs of load of the power factor in the range of 0.6 to 0.7
The overload magnification answered is 3.1, and overload magnification corresponding to load E of the power factor in the range of 0.7 to 0.8 is 3.2, power factor
Overload magnification corresponding to load E in the range of 0.8 to 1 is 3.3.Then corresponding to capacitive load of the power factor 0.6 to 0.7
Overload magnification is 2.1, overload magnification corresponding to capacitive load of the power factor 0.7 to 0.8 be 2.2, power factor 0.8 to
Overload magnification corresponding to 1 capacitive load is 2.3.
Can be in electrokinetic cell by the corresponding relation storage of loadtype, power factor and overload magnification in the table
When electric appliance load is powered, can be determined by the method tabled look-up corresponding to overload magnification.For example, the type of electric appliance load is appearance
Property, power factor 0.6, then corresponding overload magnification is 2.1.
Duration of overload corresponding to the loadtype and the power factor, can be the type and power in industry
The minimum value of duration of overload corresponding to factor.Cross and hold according to corresponding to determining the loadtype and the power factor
The method of the specific method overload magnification corresponding with determination of continuous time is similar, and here is omitted.
Step 205, the electrokinetic cell controlled to the electrical equipment according to the maximum allowed current and duration of overload
Load supplying.
In the present embodiment, the concrete methods of realizing of step 205 is similar with the step 104 in embodiment one, no longer superfluous herein
State.
The electric automobile supplying power for outside method that the present embodiment provides, pass through the electric current according to the electric appliance load and voltage
Phase difference, power factor corresponding to the electric appliance load is calculated, according to the loadtype and the power factor, by tabling look-up
Method determine corresponding to overload magnification and duration of overload, according to the output-current rating of electric automobile and the overload magnification,
Determine maximum allowed current so that the determination of maximum allowed current and maximum will be permitted closer to the actual conditions of electric automobile
Perhaps electric current and duration of overload are mapped with loadtype and power factor, can realize finer division, meet not
The demand of same electric appliance load.
Embodiment three
The embodiment of the present invention three provides a kind of electric automobile supplying power for outside device.Fig. 3 is what the embodiment of the present invention three provided
The structured flowchart of electric automobile supplying power for outside device.As shown in figure 3, the device in the present embodiment, can include：
Acquisition module 301, for when electrokinetic cell is that electric appliance load is powered, obtaining the electric current and voltage of electric appliance load；
Judge module 302, for the electric current and voltage according to the electric appliance load, judge loadtype；
Determining module 303, for according to the loadtype, determine maximum allowed current corresponding to the electric appliance load and
Duration of overload；
Control module 304, for controlling the electrokinetic cell pair according to the maximum allowed current and duration of overload
The electric appliance load power supply.
Electric automobile supplying power for outside device in the present embodiment, it can be used for performing electronic described in any of the above-described embodiment
Automobile supplying power for outside method, its concrete principle and implementation method are similar with previous embodiment, and here is omitted.
The electric automobile supplying power for outside device that the present embodiment provides, by when electrokinetic cell is that electric appliance load is powered, obtaining
The electric current and voltage of electricity getting device load, according to the electric current and voltage of the electric appliance load, judge loadtype, according to the load
Type, determine maximum allowed current and duration of overload corresponding to the electric appliance load, according to the maximum allowed current and
Duration of overload controls the electrokinetic cell to power the electric appliance load, load characteristic can be assessed, for not
Same electric appliance load provides different maximum allowed currents, and adaptability is stronger, effectively prevents damage load and electric automobile, improves
The security reliability and economy of electric automobile supplying power for outside.
Alternatively, the control module 304 is specifically used for：
Judge whether the electric current of the electric appliance load is more than the maximum allowed current and continues the duration of overload；
If so, the electrokinetic cell is then controlled to stop powering to the electric appliance load.
Alternatively, the judge module 302 is specifically used for：
If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；
If the electric current of the electric appliance load is ahead of voltage, judge the electric appliance load for capacitive load；
If phase difference is not present with voltage in the electric current of the electric appliance load, judge the electric appliance load for resistive load.
Alternatively, the determining module 303 is specifically used for：
Maximum allowed current and duration of overload corresponding to the loadtype are determined by look-up table.
Alternatively, the determining module 303 is specifically used for：
According to the loadtype, when determining that overload magnification corresponding to the loadtype and overload continue by look-up table
Between；
According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
Alternatively, the determining module 303 is specifically used for：
According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；
According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and overload continue
Time；
According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
Alternatively, the acquisition module 301 is additionally operable to：
Obtain the voltage of electrokinetic cell；
Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；
If being more than, allow the electrokinetic cell supplying power for outside.
Alternatively, the acquisition module 301 is additionally operable to：
During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；
Judge whether the voltage of the electrokinetic cell is less than predetermined voltage threshold；
If being less than, forbid the electrokinetic cell supplying power for outside.
Example IV
The embodiment of the present invention four provides a kind of electric automobile supplying power for outside system, including：Electrokinetic cell and processing unit, institute
Processing unit is stated to be used to perform the electric automobile supplying power for outside method described in any of the above-described embodiment.
In the electric automobile supplying power for outside system that the present embodiment provides, the 26S Proteasome Structure and Function of each part is and previous embodiment
Similar, here is omitted.
Preferably, the electric automobile supplying power for outside system can also include drive circuit, the drive circuit it is defeated
Enter end to be connected with the electrokinetic cell, output end is used to be connected with electric appliance load, and the drive circuit is used for the power electric
The direct current of pond output is converted to alternating current supply electric appliance load.
The electric automobile supplying power for outside system can also include on-off circuit, the on-off circuit and the electrokinetic cell
Connection, and is subject to processing device control, the processing unit can be allowed realizing by closing or disconnect the on-off circuit or
Forbid the electrokinetic cell supplying power for outside.
In the present embodiment, the processing unit can include one or more modules, to realize corresponding function.Fig. 4 is
The structured flowchart for the electric automobile supplying power for outside system that the embodiment of the present invention four provides.It is as shown in figure 4, electronic in the present embodiment
Automobile supplying power for outside system, can include：
Electrokinetic cell 1, drive circuit 2, on-off circuit 3 and processing unit 4.Drive circuit 2 be used for realize electrokinetic cell 1 to
Electric appliance load 5 is powered, and makes the normal operation of electric appliance load 5.On-off circuit 3 is used to stop power in 1 undertension of electrokinetic cell
The supplying power for outside of battery 1.Processing unit 4 is used to perform the electric automobile supplying power for outside method described in any of the above-described embodiment.
Specifically, the processing unit can include：Processing module 401, the first acquisition module 402, control module 403,
Second acquisition module 404, judge module 405.
First acquisition module 402 is connected with processing module 401, for gathering the electric current of electric appliance load 5 and voltage and sending
To the processing module 401；Second acquisition module 404 is connected respectively with processing module 401, judge module 405, dynamic for gathering
The voltage of power battery 1, and it is sent to reason module 401 and judge module 405；Judge module 405 is used for the electricity for judging electrokinetic cell 1
Whether pressure is less than predetermined voltage threshold, if less than threshold value, then disconnects on-off circuit 3, the no longer supplying power for outside of electrokinetic cell 1；Place
Reason module 401 obtains load current and load voltage according to sampling, the online type and its power factor for determining electric appliance load 5
Deng, with reference to the voltage of electrokinetic cell 1, control signal is generated according to default control strategy, and by the control signal send to
Control module 403；Control module 403 is used to be controlled drive circuit 2.
In actual applications, when needing supplying power for outside, the voltage for judging electrokinetic cell 1 by judge module 405 first is
It is no to be more than predetermined voltage threshold, if the voltage of electrokinetic cell 1 is more than predetermined voltage threshold, illustrate that the electricity of electrokinetic cell 1 fills
Foot, can be with supplying power for outside, then closure switch circuit 3；If voltage is less than threshold value, illustrate that the electricity of electrokinetic cell 1 lacks, no longer
Supplying power for outside, then not closure switch circuit 3.
After on-off circuit 3 closes, processing module 401 produces a control signal, and control module 403 is enabled and control is driven
Dynamic circuit 2, the inversion of electrokinetic cell 1 produce alternating current and powered to electric appliance load 5, and electric appliance load 5 brings into operation.
In the running of electric appliance load 5, processing module 401 obtains maximum allowed current according to loadtype, when first
When the electric current that sampling module 402 detects exceedes described maximum allowed current, start timing, when the overload allowed in load continues
When time is interior, over current fault does not eliminate also, processing module 401 takes measures, and closes drive circuit 2, and electrokinetic cell 1 is no longer right
Electric appliance load 5 is powered；When in the excessively stream time allowed in load, the electric current of electric appliance load 5 is dropped to less than maximum allowed current, is said
Caused by this bright over-current phenomenon avoidance is due to interference or other reasonses, then processing module 401 takes no action to this over-current phenomenon avoidance,
Prevent excessively stream from malfunctioning situation.
When in 1 external discharge process of electrokinetic cell, when detecting that the voltage of electrokinetic cell 1 is less than predetermined voltage threshold,
Processing module 401 no longer produces control signal, and drive circuit 2 no longer exports, while the closing switch circuit 3 of judge module 405.
The electric automobile supplying power for outside system that the present embodiment provides, by when electrokinetic cell is that electric appliance load is powered, obtaining
The electric current and voltage of electricity getting device load, according to the electric current and voltage of the electric appliance load, judge loadtype, according to the load
Type, determine maximum allowed current and duration of overload corresponding to the electric appliance load, according to the maximum allowed current and
Duration of overload controls the electrokinetic cell to power the electric appliance load, load characteristic can be assessed, for not
Same electric appliance load provides different maximum allowed currents, and adaptability is stronger, effectively prevents damage load and electric automobile, improves
The security reliability and economy of electric automobile supplying power for outside.
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.
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.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize custom logic function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.Such as, if realized with hardware with another embodiment, following skill well known in the art can be used
Any one of art or their combination are realized：With the logic gates for realizing logic function to data-signal from
Logic circuit is dissipated, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although have been shown and retouch above
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (17)
- A kind of 1. electric automobile supplying power for outside method, it is characterised in that comprise the following steps：When electrokinetic cell is that electric appliance load is powered, the electric current and voltage of electric appliance load are obtained；According to the electric current and voltage of the electric appliance load, loadtype is judged；According to the loadtype, maximum allowed current and duration of overload corresponding to the electric appliance load are determined；The electrokinetic cell is controlled to power the electric appliance load according to the maximum allowed current and duration of overload.
- 2. electric automobile supplying power for outside method as claimed in claim 1, it is characterised in that described according to the maximum allowable electricity Stream and duration of overload control the electrokinetic cell to power the electric appliance load, including：Judge whether the electric current of the electric appliance load is more than the maximum allowed current and continues the duration of overload；If so, the electrokinetic cell is then controlled to stop powering to the electric appliance load.
- 3. electric automobile supplying power for outside method as claimed in claim 1, it is characterised in that described according to the electric appliance load Electric current and voltage, judge loadtype, including：If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；If the electric current of the electric appliance load is ahead of voltage, judge the electric appliance load for capacitive load；If phase difference is not present with voltage in the electric current of the electric appliance load, judge the electric appliance load for resistive load.
- 4. electric automobile supplying power for outside method as claimed in claim 1, it is characterised in that it is described according to the loadtype, Maximum allowed current and duration of overload corresponding to the electric appliance load are determined, including：Maximum allowed current and duration of overload corresponding to the loadtype are determined by look-up table.
- 5. electric automobile supplying power for outside method as claimed in claim 1, it is characterised in that it is described according to the loadtype, Maximum allowed current and duration of overload corresponding to the electric appliance load are determined, including：According to the loadtype, overload magnification and duration of overload corresponding to the loadtype are determined by look-up table；According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
- 6. electric automobile supplying power for outside method as claimed in claim 5, it is characterised in that it is described according to the loadtype, Overload magnification and duration of overload corresponding to the loadtype are determined by look-up table, including：According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and overload continue when Between.
- 7. the electric automobile supplying power for outside method as described in claim any one of 1-6, it is characterised in that electrokinetic cell for electricity Before device load supplying, in addition to：Obtain the voltage of electrokinetic cell；Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；If being more than, allow the electrokinetic cell supplying power for outside.
- 8. the electric automobile supplying power for outside method as described in claim any one of 1-6, it is characterised in that also include：During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；Judge whether the voltage of the electrokinetic cell is less than predetermined voltage threshold；If being less than, forbid the electrokinetic cell supplying power for outside.
- A kind of 9. electric automobile supplying power for outside device, it is characterised in that including：Acquisition module, for when electrokinetic cell is that electric appliance load is powered, obtaining the electric current and voltage of electric appliance load；Judge module, for the electric current and voltage according to the electric appliance load, judge loadtype；Determining module, for according to the loadtype, determining maximum allowed current corresponding to the electric appliance load and crossing to hold The continuous time；Control module, for controlling the electrokinetic cell to the electrical equipment according to the maximum allowed current and duration of overload Load supplying.
- 10. electric automobile supplying power for outside device as claimed in claim 9, it is characterised in that the control module is specifically used for：Judge whether the electric current of the electric appliance load is more than the maximum allowed current and continues the duration of overload；If so, the electrokinetic cell is then controlled to stop powering to the electric appliance load.
- 11. electric automobile supplying power for outside device as claimed in claim 9, it is characterised in that the judge module is specifically used for：If the current hysteresis of the electric appliance load judges the electric appliance load for inductive load after voltage；If the electric current of the electric appliance load is ahead of voltage, judge the electric appliance load for capacitive load；If phase difference is not present with voltage in the electric current of the electric appliance load, judge the electric appliance load for resistive load.
- 12. electric automobile supplying power for outside device as claimed in claim 9, it is characterised in that the determining module is specifically used for：Maximum allowed current and duration of overload corresponding to the loadtype are determined by look-up table.
- 13. electric automobile supplying power for outside device as claimed in claim 9, it is characterised in that the determining module is specifically used for：According to the loadtype, overload magnification and duration of overload corresponding to the loadtype are determined by look-up table；According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
- 14. electric automobile supplying power for outside device as claimed in claim 9, it is characterised in that the determining module is specifically used for：According to the electric current of the electric appliance load and the phase difference of voltage, power factor corresponding to the electric appliance load is calculated；According to the loadtype and the power factor, by look-up table determine corresponding to overload magnification and overload continue when Between；According to the output-current rating of electric automobile and the overload magnification, maximum allowed current is determined.
- 15. the electric automobile supplying power for outside device as described in claim any one of 9-14, the acquisition module are additionally operable to：Obtain the voltage of electrokinetic cell；Judge whether the voltage of the electrokinetic cell is more than predetermined voltage threshold；If being more than, allow the electrokinetic cell supplying power for outside.
- 16. the electric automobile supplying power for outside device as described in claim any one of 9-14, the acquisition module are additionally operable to：During the electrokinetic cell is electric appliance load power supply, the voltage of electrokinetic cell is obtained；Judge whether the voltage of the electrokinetic cell is less than predetermined voltage threshold；If being less than, forbid the electrokinetic cell supplying power for outside.
- A kind of 17. electric automobile supplying power for outside system, it is characterised in that including：Electrokinetic cell and processing unit, the processing dress Put the electric automobile supplying power for outside method described in for perform claim requirement any one of 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710686030.6A CN107508341A (en) | 2017-08-11 | 2017-08-11 | Electric automobile supplying power for outside method, apparatus and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710686030.6A CN107508341A (en) | 2017-08-11 | 2017-08-11 | Electric automobile supplying power for outside method, apparatus and system |
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| CN107508341A true CN107508341A (en) | 2017-12-22 |
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| CN201710686030.6A Pending CN107508341A (en) | 2017-08-11 | 2017-08-11 | Electric automobile supplying power for outside method, apparatus and system |
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| Country | Link |
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| CN (1) | CN107508341A (en) |
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| CN112751408A (en) * | 2019-10-31 | 2021-05-04 | 上海汽车集团股份有限公司 | Power supply circuit and power supply method |
| CN113525109A (en) * | 2021-08-12 | 2021-10-22 | 长春捷翼汽车零部件有限公司 | Discharge control method and device, electronic equipment and storage medium |
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Application publication date: 20171222 |