CN104767230B - Control the method and system of the electric power of low-tension supply - Google Patents
Control the method and system of the electric power of low-tension supply Download PDFInfo
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- CN104767230B CN104767230B CN201410007593.4A CN201410007593A CN104767230B CN 104767230 B CN104767230 B CN 104767230B CN 201410007593 A CN201410007593 A CN 201410007593A CN 104767230 B CN104767230 B CN 104767230B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- 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
- Y02T10/72—Electric energy management in electromobility
Abstract
The present invention provides a kind of method for controlling to the electric power of low-tension supply, which is electrically connected by DC-DC converter with high voltage power supply, this method comprises: presetting multiple output stages of the DC-DC converter；Preset the minimum threshold and highest thresholding of the parameters of electric power of characterization low-tension supply power state；Detect the parameters of electric power of low-tension supply；By parameters of electric power detected compared with the highest thresholding, minimum threshold, and determine according to comparison result the output of the DC-DC converter.Corresponding system is also provided.Provided method according to the present invention, the electric power of DC-DC converter to low-tension supply are variable.
Description
Technical field
The present invention relates to automotive engineerings, more particularly, to hybrid-electric car, plug-in hybrid-electric car and pure electricity
Electric power networks technology in electrical automobile.
Background technique
In hybrid-electric car, plug-in hybrid-electric car and pure electric automobile, electric power networks are divided into high-pressure section
With low-pressure section.
Fig. 1 illustrates electric power networks conventional in vehicle.As shown, the electric power networks include high-tension battery 10, with height
The plug-in charger 11 that piezoelectric battery 10 is electrically connected, A-battery 20, the DC/ that high-tension battery 10 is electrically connected with A-battery 20
DC converter 21, and the full-vehicle control unit 30 being electrically connected with high-tension battery 10.High-tension battery 10 passes through plug-in charger
11 connection external charging machines are with electric energy supplement.When needed, high-tension battery 10 is filled by DC/DC converter 21 to A-battery 10
Electricity.In addition to charging to A-battery 20 so that it is to the Low-voltage Electronic power electrical apparatus of vehicle, high-tension battery 10 is also according to need
Electric energy is transmitted to the power device of vehicle.As shown, internal combustion engine 40 passes through mechanical clutch 41 and starting/power generation all-in-one machine
42 connections, gearbox 44 is connect by mechanical clutch 43 with starting/power generation all-in-one machine 43, and high-tension battery 10 passes through main contact
Device 45 is electrically connected with starting/power generation all-in-one machine 43.The energy of high-tension battery 10 A-battery and starting/power generation all-in-one machine 43 it
Between supply managed by full-vehicle control unit 30.
In the prior art, the output of DC/DC converter 21 to A-battery 20 is all to pre-set and vehicle operation
It remains unchanged in the process.
Summary of the invention
The present invention provides a kind of method for controlling to the electric power of low-tension supply, can arrive low pressure to DC/DC converter 21
The output of battery 20 carries out the adjusting of adaptability.
Method of the present invention for controlling to the electric power of low-tension supply, the low-tension supply are turned by DC/DC
Parallel operation is electrically connected with high voltage power supply, which comprises presets multiple output stages of the DC-DC converter；In advance
The first minimum threshold and highest thresholding of the parameters of electric power of setting characterization low-tension supply power state；Detect the electric power ginseng of low-tension supply
Number；By parameters of electric power detected compared with the highest thresholding, minimum threshold, and according to comparison result determine the direct current/
The output of direct current transducer.
Preferably, this method further includes detecting the parameters of electric power of high voltage power supply, and join in the electric power of the high voltage power supply
In the case that number is low, the minimum threshold and highest thresholding are reduced.
Preferably, in this method, it is described according to comparison result determine the DC-DC converter output include: as
Fruit parameters of electric power detected is between the highest thresholding and the minimum threshold, then the DC-DC converter is defeated
The optimal output being set as in the output stage out；If parameters of electric power detected is more than the highest thresholding, described
The output of DC-DC converter is set as the minimum output in output stage；If parameters of electric power detected is described minimum
Thresholding hereinafter, then the output of the DC-DC converter be set as the highest in output stage output.
Preferably, in this method, the parameters of electric power is charge/discharge current or state-of-charge.Preferably, this method is answered
In hybrid vehicle, plug-in hybrid-power automobile or pure electric automobile, the method also includes: it receives and comes from vehicle
The vehicle driving state information of control unit；And it is described by parameters of electric power detected and the highest thresholding, minimum threshold
Compare, and according to comparison result determine the DC-DC converter output include: by parameters of electric power detected with it is described
Highest thresholding, minimum threshold compare, and determine the DC/DC according to comparison result and the vehicle driving state information
The output of converter.
The present invention also provides a kind of for controlling the system for arriving the electric power of low-tension supply, and low-tension supply passes through DC/DC
The electrical connection of converter high voltage power supply, the system comprises: set interface, for presetting the DC-DC converter
Multiple output stages, and preset the minimum threshold and highest thresholding of the parameters of electric power of characterization low-tension supply power state；Inspection
Unit is surveyed, the parameters of electric power of detection low-tension supply is configured to, and will test result and be transferred to comparing unit；Comparing unit,
It is configured to will test result with pre-set minimum threshold compared with highest thresholding, and comparison result is transferred to control list
Member；Control unit is configured to determine the output of the DC-DC converter according to comparison result.
Preferably, in the system, described control unit is configured to: if parameters of electric power detected is in the most wealthy family
Between limit and the minimum threshold, then set optimal defeated in the output stage for the output of the DC-DC converter
Out；If parameters of electric power detected sets the output of the DC-DC converter to more than the highest thresholding
Minimum output in output stage；If parameters of electric power detected in the minimum threshold hereinafter, if by the DC/DC turn
The output of parallel operation is set as the output of the highest in output stage.
Preferably, which applies in hybrid vehicle, plug-in hybrid-power automobile or pure electric automobile, described
Control unit is configured to determine according to comparison result and according to the vehicle driving state information from entire car controller described straight
The output of stream/direct current transducer.Preferably, the detection unit is battery condition sensor, the comparing unit and the control
Unit processed is set as a part of full-vehicle control unit.
It is applied in hybrid vehicle, plug-in hybrid-power automobile or pure electric automobile the present invention also provides a kind of
Electric power networks comprising high voltage power supply, low-tension supply, the DC-DC converter for being electrically connected high voltage power supply with low-tension supply,
Wherein, the electric power networks further include the system for controlling to the electric power of low-tension supply as described above.
It executes method of the present invention and/or uses system of the invention, it can be according to the practical electric power shape of low-tension supply
The output of state adjustment DC-DC converter.
Detailed description of the invention
Fig. 1 illustrates electric power networks conventional in vehicle.
Fig. 2 is one according to the present invention exemplary for controlling the flow chart of the method to the electric power of low-tension supply.
Fig. 3 illustrates the structure of the system for controlling the electric power for arriving low-tension supply.
Fig. 4 is using shown in Fig. 3 for controlling to the electric power networks in the vehicle of the system of the electric power of low-tension supply.
Specific embodiment
Schematic example of the invention is described referring now to attached drawing, identical drawing reference numeral indicates identical element.Hereafter
Each embodiment of description facilitates those skilled in the art and understands thoroughly the present invention, and is intended to example rather than limits.Each member in figure
Part, component, unit, device diagram be not drawn necessarily to scale, only illustrate schematically these component, assembly units, module, device it
Between relativeness.
The method of electric power of the control according to the present invention to low-tension supply can be for example using application environment shown in Fig. 1
In, but be not limited thereto.Fig. 2 is the one according to the present invention exemplary method for controlling to the electric power of low-tension supply
Flow chart.Method shown in Fig. 2 is illustrated now in conjunction with Fig. 1.
In step 20, multiple outputs of the DC-DC converter (hereinafter referred to as DC/DC converter) are preset
Grade.The high-tension current of high voltage power supply 10 can be converted to low-tension current by DC/DC converter 21, be output to A-battery 20.In advance
The output stage of DC/DC converter 21 is set, makes it that can there is different output voltages.In this example, DC/DC converter 21 is defeated
It is set as minimum output stage, optimal output stage and highest output stage three out.As an example, the output valve of minimum output is
10.6V or so, the output valve of highest output are 16V or so, and the output valve of optimal output is 14V or so.In example of the invention,
A-battery is unrestrictedly battery with the equal example of high-tension battery.
In step 22, the minimum threshold and highest thresholding of the parameters of electric power of characterization low-tension supply power condition are preset.
Low-tension supply 20 is charged by DC/DC converter 21 by high voltage power supply 10, and then supplies electricity to work in vehicle in low-pressure state
Instrument element.The parameter for characterizing the power condition of low-tension supply 20 can be charge/discharge current or state-of-charge etc..In this example
In, it is illustrated using state-of-charge as the parameter of the power condition of characterization low-tension supply 20, term " state-of-charge (SOC) "
Meaning herein is consistent with understanding of the those skilled in the art to it, and it is for a period of time or long-term to refer to that battery uses
The ratio of the capacity of residual capacity and its fully charged state after lying idle, commonly using percentage indicates, value range 0
~ 1, it indicates that battery has discharged completely as SOC=0, indicates that battery is completely filled with as SOC=1.The state-of-charge of low-tension supply 20
Minimum threshold be for example set as x, highest thresholding is for example set as y.In addition, as it is well known, for low-tension supply 20 and
Speech, charging current and discharge current in synchronization and will not be deposited, and characterize the electric power shape of the power supply sometime with electric current
When state, if the low-tension supply is in discharge condition, the parameter to characterize its power condition is discharge current, if this is low
Voltage source is in charged state, then the parameter to characterize its power condition is charging current.
In step 24, detect the parameter of the characterization power condition of low-tension supply, by the concrete condition of parameter detected with
Be compared for low-tension supply pre-set minimum threshold x and highest thresholding y, then according to comparison result determine direct current/
The output of direct current transducer.For example, the state-of-charge of detection low-tension supply 20, value m make then in the case where x≤m≤y
The output of DC/DC converter 21 is in optimal output stage；In the case where m < x, the output of DC/DC converter 21 is made to be in highest
Output stage；In the case where y < m, the output of DC/DC converter 21 is made to be in minimum output stage.Characterization electricity can be detected by sensor
The parameter of power situation.Detection for state-of-charge, such as can be obtained by the EBS equipment for the Bosch that can be obtained currently on the market
, which can detect voltage, electric current, temperature and state-of-charge.
Further, an example according to the present invention may also include the electric power ginseng of detection high voltage power supply 10 in step 24
Number.In the case where the parameters of electric power such as state-of-charge for detecting high voltage power supply 10 is low, can adjust pre-set for low
The highest thresholding and minimum threshold of piezoelectric battery 20 lower the highest thresholding of A-battery 20 integrally with minimum threshold；Wherein, lotus
It or not that electricity condition is low is to be specifically dependent upon requirement of the application environment to high voltage power supply depending on concrete application, in the application,
It is considered that the state-of-charge of high voltage power supply is low lower than 60%, in other application, thinks the charged of high voltage power supply lower than 70%
State is low.
It as above, is applied method shown in Fig. 2 in hybrid vehicle, plug-in hybrid-power automobile or pure electric vehicle vapour
It is illustrated in the application environment of vehicle, under such application environment, another example according to the present invention, this method is also wrapped
It includes and receives the vehicle driving state information from full-vehicle control unit 30, in this way, the determination DC/DC carried out in step 24
The output of converter is implemented as by parameters of electric power detected compared with the highest thresholding, minimum threshold, and according to than
Relatively result and vehicle driving state information determine the output of the DC-DC converter.In all examples of the invention, vehicle
Drive status information is in the information of charged state for example including high-tension battery 10, high-tension battery 10 is in the letter of discharge condition
Breath, key-on(are that is, ignition switch is in the state that on is in connection in other words) state, braking energy feedback state etc..In vehicle
Be in braking energy feedback state when, the output of DC/DC converter 21 can be arranged to highest output stage；In high-tension battery 10
When in charged state, the output of DC/DC converter 21 can be arranged to minimum output stage；It, can be by DC/ in key-on state
The output of DC converter 21 is arranged to optimal output stage.
According to the practical power condition of low-tension supply 20, adjustment is conveyed to the electric power of low-tension supply 20, on the one hand can make low
Voltage source 20 is in non-fully charged state, is conducive to extend the service life, certainly prevented also from overcharging.In all examples of the invention,
Illustratively, highest thresholding is 85%, and the setting of minimum threshold 75%, highest thresholding and minimum threshold can be according to actual conditions
Depending on.In addition, adjusting the output of DC/DC converter 21 by the practical state-of-charge of low-tension supply 20 detected, can make low
Voltage source 20 is in reliable power state.The low-tension supply 20 for being constantly in firm power state is in starting next time
Receive the very reliable energy source of each electronic equipment of its power supply.
High voltage power supply 10 is other also according to needing to supply electricity to be connected electrically during supplying electricity to low-tension supply 20
Component, such as starting/power generation all-in-one machine.In this case, reach pre-set in the power condition of low-tension supply 20
When minimum threshold, that is, the output of DC/DC converter 21 is reduced, can make more to supply an electric power in vehicle in high voltage power supply 10
The part of other needs optimizes 10 electrical distribution of high voltage power supply more.
The method for controlling to the electric power of low-tension supply as described above can be realized as software module, hardware module or soft
The combination of part and hardware, and the software module, hardware module or software and hardware are implemented in combination with as an independent module,
Also it may be implemented in full-vehicle control unit.
An example according to the present invention also provides a kind of system 3 for controlling to the electric power of low-tension supply, wherein low
Voltage source is to be electrically connected by DC-DC converter with high voltage power supply, and Fig. 3 illustrates the structure of the system 3.The control is to low
The system 3 of the electric power of voltage source includes set interface 300, detection unit 320, comparing unit 340 and control unit 360.Fig. 3 institute
The set interface 300 of signal provides a user setting interface, and user is made to preset the more of the DC-DC converter by it
A output stage, and preset the minimum threshold and highest thresholding of the parameters of electric power of characterization low-tension supply power state.Detection
Unit 320 detects the power state of low-tension supply, and will test result and be transferred to comparing unit 340.Comparing unit 340 will be connect
The detection signal of receipts is compared with pre-set minimum threshold, highest thresholding, and comparison result is exported to control unit
360.Control unit 360 exports control signal to DC-DC converter, to adjust its output stage according to comparison result.
One of skill in the art will understand that set interface 300 is also other related with electric power networks for user setting
Parameter, such as the temperature threshold of low-tension supply, DC-DC converter etc..In this case: 320 quilt of detection unit
It is configured to except the parameters of electric power of detection low-tension supply, the parameters of electric power of also detectable high voltage power supply, and detection low tension
The temperature parameter in source, high voltage power supply and DC/DC converter, and equally will test result and be transferred to comparing unit 340, in this way,
Detection unit 320 may include the sensor for sensing parameters of electric power, such as voltage sensor, also include temperature sensor；Than
It is configured to except by received parameters of electric power compared with threshold value compared with unit 34, also with regard to the received temperature value of institute and critical value
Compare, and comparison result is transferred to control unit 360；Control unit 360 is configured to according to parameters of electric power and threshold value
Comparison result control DC-DC converter except, acted accordingly also according to the comparison result of temperature, such as in temperature
When degree is higher than critical value, alarm signal is issued.
Fig. 4 is using shown in Fig. 3 for controlling to the power network in the vehicle of the system 3 of the electric power of low-tension supply
Network.As shown, electric power networks in this example further include for controlling to low-tension supply compared with electric power networks shown in FIG. 1
Electric power system 3, and high-tension battery 10 is not electrically connected with full-vehicle control unit 30 not instead of directly, passes through system 3 and vehicle
Control unit 30 is electrically connected.In addition, DC/DC converter 21 is electrically connected with system 3 respectively with A-battery 20.It is described below
In certain examples, high-tension battery 10 is also electrically connected with the system 3 for controlling to the electric power of low-tension supply.
The different output stages of DC/DC converter 21 are set by the set interface 300 of system 3, are made it have different defeated
Voltage out.In this example, the output of DC/DC converter 21 is arranged to minimum output stage, optimal output stage and highest output stage
Three.As an example, the output valve of minimum output is 10.6V or so, the output valve of highest output is 16V or so, optimal output
Output valve be 14V or so.The minimum door of the parameters of electric power of characterization 20 power condition of low-tension supply is set by set interface 300
Limit and highest thresholding.The parameter for characterizing the power condition of low-tension supply 20 can be charge/discharge current and state-of-charge etc..?
In this example, it is illustrated using state-of-charge as the parameter of the power condition of characterization low-tension supply 20.The lotus of low-tension supply 20
The minimum threshold of electricity condition is for example set as x, and highest thresholding is for example set as y.
The output stage of DC/DC converter 21 and the parameters of electric power of low-tension supply 20 are preset by set interface 300
Minimum threshold and highest thresholding.After electric power networks enter working condition, detection unit 320 detects the electricity of low-tension supply 20
Power state, such as the charge/discharge current or state-of-charge of detection low-tension supply 20, in this example, to detect state-of-charge work
For example.For example, the state-of-charge of detection low-tension supply 20, value m.Detection unit 320, which will test result and be transferred to, to be compared
Unit 340.
Comparing unit 340 transmits parameters of electric power detected compared with pre-set threshold value, and by comparison result
To control unit 360.Specifically, detection unit 320 compares the value m for characterizing state-of-charge and preset threshold value x and y
Compared with, and comparison result is transferred to control unit 360.
Control unit 360 receives comparison result and the output of DC/DC converter 21 is arranged accordingly.X≤m≤y the case where
Under, control unit 360 makes the output of DC/DC converter 21 be in optimal output stage；In the case where m < x, control unit 360 makes
The output of DC/DC converter 21 is in highest output stage；In the case where y < m, control unit 360 makes DC/DC converter 21
Output is in minimum output stage.
Optionally, detection unit 320 can also further detect the state-of-charge of high-tension battery 10, and will test result with
The threshold value of the pre-set state-of-charge for high-tension battery 10 is compared (here, it is understood that threshold value can lead to
Set interface 300 is crossed to preset), and will test result and be transferred to comparing unit 320, after comparing through it, by comparison result
It is transferred to control unit 360, control unit 360 exports corresponding signal according to comparison result, for example, if the comparison indicate that
The power state of current high-tension battery 10 is poor, then the adjustable highest thresholding for low-tension supply of control unit 360 with it is minimum
Thresholding may also be arranged to issue alarm signal to prompt user's high voltage power supply power state poor.Equally, detection unit 320 is gone back
Detection A-battery 20, the temperature of DC/DC converter 21 and high-tension battery 10 respectively, comparing unit can be further configured into
340 by the temperature of A-battery 20 detected, DC/DC converter 21 and high-tension battery 10 and their own critical value ratio
Compared with any one of control unit 360 in the temperature of A-battery 20, DC/DC converter 21 and high-tension battery 10 is greater than
When corresponding critical value, that is, issue corresponding warning.
It is to apply system 3 shown in Fig. 3 in hybrid vehicle, plug-in hybrid-power automobile or pure electric vehicle vapour above
It is illustrated in the application environment of vehicle, under such application environment, another example according to the present invention, the system is also connect
The vehicle driving state information from full-vehicle control unit 30 is received, in this way, control unit 360 is configured to electric power detected
Parameter compared with the highest thresholding, minimum threshold, and according to comparison result and vehicle driving state information determine the direct current/
The output of direct current transducer.In addition, the system also sends the information such as fault message to full-vehicle control unit 30.As showing
Example, detection unit 320 therein can be exemplified but be battery condition sensor without limitation；And optionally, comparing unit 340
It may be implemented in full-vehicle control unit 30 with control unit 360, become part of it.In addition, can also be used to control by shown in Fig. 3
The system for making the electric power of low-tension supply integrally may be implemented in full-vehicle control unit 30.
According to still another embodiment of the invention, a kind of apply in hybrid vehicle, plug-in hybrid-power automobile is provided
Or the electric power networks in pure electric automobile comprising high voltage power supply, is electrically connected low-tension supply by high voltage power supply with low-tension supply
DC-DC converter, and for controlling the system for arriving the electric power of low-tension supply.In the electric power networks, high voltage power supply example
For example such as the high voltage power supply 10 in the example above in association with Fig. 3 and described in Fig. 4, low-tension supply is, for example, low-tension supply 20, and direct current/
Direct current transducer is, for example, DC/DC converter 21, and the system for controlling to the electric power of low-tension supply is, for example, use shown in Fig. 3
In the system of the electric power of control to low-tension supply.
After system as shown in Figure 3, so that the output of DC/DC converter 21 can be according to the shape of high voltage power supply
State, low-tension supply practical power state be adjusted so that the electric power for being conveyed to low-tension supply 20 is adjustable.In this way, really
The reliability of low-tension supply 20 has been protected, has also helped and prolongs its service life, while being further adapted for reasonable layout high voltage power supply 20
Electric power.
Although in the above description in conjunction with attached drawing, disclosing specific embodiments of the present invention, art technology
Personnel will be appreciated that, can disclosed specific embodiment be deformed or be modified without departing from the spirit of the invention.This
The embodiment of invention is only used for signal and is not intended to restrict the invention.
Claims (8)
1. a kind of for controlling the method for arriving the electric power of low-tension supply, which passes through DC-DC converter and high pressure
Power electric connection, which comprises
Preset multiple output stages of the DC-DC converter；
Preset the minimum threshold and highest thresholding of the parameters of electric power of characterization low-tension supply power state；
Detect the parameters of electric power of low-tension supply；
By the parameters of electric power of detected low-tension supply compared with the highest thresholding, minimum threshold, and determined according to comparison result
The output of the DC-DC converter；
Wherein, and low in the state-of-charge of the high voltage power supply the method also includes detecting the parameters of electric power of high voltage power supply
In the case where 60%, the minimum threshold and highest thresholding are reduced.
2. the method as described in claim 1 for controlling to the electric power of low-tension supply, wherein described true according to comparison result
The output of the fixed DC-DC converter includes:
If the parameters of electric power of the detected low-tension supply is between the highest thresholding and the minimum threshold, described straight
Stream/direct current transducer exports the optimal output being set as in the output stage；
If the parameters of electric power of the detected low-tension supply is more than the highest thresholding, the DC-DC converter
Output be set as the minimum output in output stage；
If the parameters of electric power of the detected low-tension supply in the minimum threshold hereinafter, if the DC-DC converter
Output be set as the highest in output stage output.
3. the method as claimed in claim 2 for controlling to the electric power of low-tension supply, wherein the parameters of electric power is to fill
Electricity/discharge current or state-of-charge.
4. as claimed in claim 2 for control the method for arriving the electric power of low-tension supply, apply in hybrid vehicle or
In pure electric automobile, the method also includes:
Receive the vehicle driving state information from full-vehicle control unit；And
The parameters of electric power by detected low-tension supply is compared with the highest thresholding, minimum threshold, and according to comparison result
The output for determining the DC-DC converter includes:
By the parameters of electric power of the detected low-tension supply compared with the highest thresholding, minimum threshold, and according to comparison result
And the vehicle driving state information determines the output of the DC-DC converter.
5. a kind of for controlling the system for arriving the electric power of low-tension supply, low-tension supply passes through DC-DC converter high voltage power supply
Electrical connection, the system comprises:
Set interface for presetting multiple output stages of the DC-DC converter, and presets characterization low pressure
The minimum threshold and highest thresholding of the parameters of electric power of electric power state；
Detection unit, is configured to the parameters of electric power of detection low-tension supply, and will test result and be transferred to comparing unit；
Comparing unit is configured to will test result with pre-set minimum threshold compared with highest thresholding, and will compare knot
Fruit is transferred to control unit；
Control unit is configured to determine the output of the DC-DC converter according to comparison result；
Wherein, the detection unit is configured to the parameters of electric power of detection high voltage power supply, and described control unit is configured to described
In the case that the state-of-charge of high voltage power supply is lower than 60%, the minimum threshold and highest thresholding are reduced.
6. the system as claimed in claim 5 for controlling to the electric power of low-tension supply, wherein described control unit is configured
At:
If the parameters of electric power of detected low-tension supply, will be described straight between the highest thresholding and the minimum threshold
Stream/direct current transducer exports the optimal output being set as in the output stage；
If the parameters of electric power of the detected low-tension supply is more than the highest thresholding, by the DC/DC conversion
The output of device is set as the minimum output in output stage；
If the parameters of electric power of the detected low-tension supply in the minimum threshold hereinafter, if by the DC/DC conversion
The output of device is set as the output of the highest in output stage.
7. the system as claimed in claim 6 for controlling to the electric power of low-tension supply, wherein the parameters of electric power is to fill
Electricity/discharge current or state-of-charge.
8. the system as claimed in claim 6 for controlling to the electric power of low-tension supply is applied in hybrid vehicle, is inserted
In electric-type hybrid vehicle or pure electric automobile, described control unit is configured to according to comparison result and according to from vehicle
The vehicle driving state information of controller determines the output of the DC-DC converter.
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| CN201410007593.4A CN104767230B (en) | 2014-01-08 | 2014-01-08 | Control the method and system of the electric power of low-tension supply |
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|---|---|---|---|---|
| CN106042964A (en) * | 2016-06-27 | 2016-10-26 | 北京新能源汽车股份有限公司 | Control method and device for low-pressure accumulator of electric automobile and electric automobile |
| CN106904087A (en) * | 2017-01-26 | 2017-06-30 | 柳州延龙汽车有限公司 | Pure electric vehicle low tension battery charging method |
| CN110782165B (en) * | 2019-10-25 | 2022-05-13 | 深圳供电局有限公司 | Gridding power distribution network residual power supply capacity monitoring system |
| CN114865121A (en) * | 2022-04-14 | 2022-08-05 | 上海巴库斯超导新材料有限公司 | Charging method of graphene modified battery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996705A (en) * | 2006-12-21 | 2007-07-11 | 奇瑞汽车有限公司 | DC-DC conversion control system and control method of the mixed driven car |
| CN101786412A (en) * | 2009-12-31 | 2010-07-28 | 江苏常隆客车有限公司 | Control system for controlling motor and DC-DC power supply of hybrid electric vehicle simultaneously |
| CN101966841A (en) * | 2010-08-09 | 2011-02-09 | 奇瑞汽车股份有限公司 | DC/DC conversion system of electric vehicle and control method thereof |
| CN102570792A (en) * | 2010-12-23 | 2012-07-11 | 上海汽车集团股份有限公司 | Control method of voltage setting point of direct current high voltage and low voltage converter |
| CN102902292A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Method for controlling voltage setting point of direct current high-low voltage converter of pure electromobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007295769A (en) * | 2006-04-27 | 2007-11-08 | Matsushita Electric Ind Co Ltd | Bidirectional dc-dc converter |
-
2014
- 2014-01-08 CN CN201410007593.4A patent/CN104767230B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996705A (en) * | 2006-12-21 | 2007-07-11 | 奇瑞汽车有限公司 | DC-DC conversion control system and control method of the mixed driven car |
| CN101786412A (en) * | 2009-12-31 | 2010-07-28 | 江苏常隆客车有限公司 | Control system for controlling motor and DC-DC power supply of hybrid electric vehicle simultaneously |
| CN101966841A (en) * | 2010-08-09 | 2011-02-09 | 奇瑞汽车股份有限公司 | DC/DC conversion system of electric vehicle and control method thereof |
| CN102570792A (en) * | 2010-12-23 | 2012-07-11 | 上海汽车集团股份有限公司 | Control method of voltage setting point of direct current high voltage and low voltage converter |
| CN102902292A (en) * | 2012-09-29 | 2013-01-30 | 北京智行鸿远汽车技术有限公司 | Method for controlling voltage setting point of direct current high-low voltage converter of pure electromobile |
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