CN105206897B - Apparatus and method for controlling battery pack temperature - Google Patents
Apparatus and method for controlling battery pack temperature Download PDFInfo
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- CN105206897B CN105206897B CN201410307971.0A CN201410307971A CN105206897B CN 105206897 B CN105206897 B CN 105206897B CN 201410307971 A CN201410307971 A CN 201410307971A CN 105206897 B CN105206897 B CN 105206897B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a kind of method and apparatus for being used to control the temperature of battery pack.The battery pack includes a Battery pack unit of series connection, it is characterized in that, described device includes several first series circuits, several battery units that each of first series circuit is included in the first contactor and first resistor being arranged in series, the Battery pack unit are in parallel with one first series circuit respectively；Temperature detecting unit, the temperature for detecting battery pack；Temperature comparing unit, for the temperature of the battery pack detected to be compared with predetermined temperature threshold, to obtain comparative result；And battery management unit, closed and disconnected for controlling first contactor according to the comparative result, wherein when the temperature of the battery pack is less than the temperature threshold, battery management unit control closes one or more of several described first contactors；When the temperature of the battery pack is equal to or more than the temperature threshold, battery management unit control disconnects several described first contactors.
Description
Technical field
The present invention relates generally to vehicle electric field, relate more specifically to it is a kind of be used for control battery pack temperature device and
Method.
Background technology
The battery used in vehicle, such as lithium battery, within the scope of certain temperature, its internal resistance is with the change of temperature
Change and significant changes.Lithium battery interior resistance is reduced when the temperature increases, and the efficiency of lithium battery is improved therewith, and battery can be more
High power level work.And when temperature is very low, lithium battery can not work at all.Therefore, when the temperature of lithium battery is too low
When, it is necessary to lithium battery is heated, could be used in cold environment.
Generally, using the air cooling system of vehicle, by using the air in driver's cabin as the source being heated or cooled, come
Lithium battery is heated.But this mode can only integrally be heated to battery pack, when only percentage of batteries group needs heating,
Local heating can not be carried out to battery pack, it is impossible to battery pack each several part is reached identical temperature.In addition, when temperature is very low
When, damp and hot cabin air can cause vapor to be condensed on cold battery component.Condensed if necessary to remove, it is still necessary to
Battery pack is heated from inside, it is desirable to provide extra heater block and the power supply that electric energy is provided for heater block, made
The structure of battery circuit is more complicated, adds cost.
The content of the invention
In view of the above problems, it is proposed that the present invention, to provide a kind of apparatus and method for the temperature for controlling battery pack, with
Overcome above mentioned problem or solve the above problems at least in part.
According to the first aspect of the present invention, there is provided a kind of device for being used to control the temperature of battery pack, the battery pack
A Battery pack unit including series connection, it is characterised in that described device includes：Several first series circuits, first string
Each of connection circuit includes several electricity in the first contactor and first resistor being arranged in series, the Battery pack unit
Each of pool unit is in parallel with one first series circuit respectively；Temperature detecting unit, the temperature for detecting battery pack；Temperature
Comparing unit, for the temperature of the battery pack detected to be compared with predetermined temperature threshold, to be compared
As a result；And battery management unit, the closed and disconnected for controlling first contactor according to the comparative result, wherein when
When the temperature of the battery pack is less than the temperature threshold, battery management unit control is closed in several described first contactors
It is one or more；When the temperature of the battery pack is equal to or more than the temperature threshold, battery management unit control disconnects
Several described first contactors.
According to an embodiment of the present invention, wherein the battery management unit is used for：According to the temperature of the battery pack
With the difference of the temperature threshold, it is determined that closing the quantity of the first contactor.
According to an embodiment of the present invention, wherein the battery management unit is used for：When the temperature of the battery pack is small
When the temperature threshold, multiple in several described first contactors are in turn closed in multiple time intervals and are disconnected
Other described first contactors.
According to an embodiment of the present invention, wherein the battery management unit is used for：When the battery pack temperature is less than
During the temperature threshold, it is closed at multiple in several described first contactors；And several electricity described in pulsewidth modulation
Electric current between pool unit and the first resistor connected in parallel.
According to an embodiment of the present invention, wherein：The battery pack is radiated by the air cooling system of the vehicle, and institute
Several first resistors are stated to be arranged at the air intake of the air cooling system.
According to an embodiment of the present invention, wherein：Several described first resistors are configured as being evenly distributed in described
Battery pack.
According to an embodiment of the present invention, wherein：The battery pack is radiated by the liquid cooling system of the vehicle；And institute
State several first resistors and be positioned against the battery pack and be evenly distributed.
According to an embodiment of the present invention, wherein：The temperature detecting unit be additionally operable to detection battery pack in several
The regional temperature in region；The temperature comparing unit be additionally operable to the regional temperature that will detect respectively with predetermined temperature
Degree threshold value compares, to obtain comparative result；And the battery management unit is additionally operable to according to the comparative result, when described
When regional temperature is less than the temperature threshold, control closure is located at or near corresponding to an at least first resistor in the region
First contactor.
According to an embodiment of the present invention, wherein：The temperature detecting unit is additionally operable to each electricity in detection battery pack
The temperature of pool unit；The temperature comparing unit is additionally operable to the temperature and predetermined temperature for the battery unit that will be detected
Degree threshold value compares, to obtain comparative result；And the battery management unit is additionally operable to according to the comparative result, when described
When battery cell temperature is less than the temperature threshold, control closure is right near at least first resistor institute of the battery unit
The first contactor answered.
According to an embodiment of the present invention, wherein described device also includes several voltage measurement units, described some
Each of individual voltage measurement unit is in parallel with each in several described battery units respectively, the voltage measurement unit
Magnitude of voltage for measuring each battery unit in battery pack charging process；The battery management unit is additionally operable in battery pack
The minimum value in the magnitude of voltage is determined in charging process；By in the magnitude of voltage of each battery unit and the magnitude of voltage
Minimum value compares acquisition voltage difference；The voltage difference is compared with default voltage difference threshold value；When the temperature of the battery pack
Degree is equal to or more than described default less than the default temperature threshold and in the presence of the corresponding voltage difference of an at least battery unit
Voltage difference threshold value when, the corresponding first contactor of an at least battery unit described in battery management unit control closure；When
The temperature of the battery pack be less than the default temperature threshold and the corresponding voltage difference of each battery unit be respectively less than it is described
During default voltage difference threshold value, the corresponding first contactor of each battery unit of the battery management unit control closure.
There is provided a kind of method for being used to control the temperature of battery pack, the battery pack according to the second aspect of the invention
A Battery pack unit including series connection, it is characterised in that methods described includes：Several the first series circuits, described are set
Each of one series circuit includes some in the first contactor and first resistor being arranged in series, the Battery pack unit
Each in individual battery unit is in parallel with one first series circuit respectively；Detect the temperature of battery pack；Described in detecting
The temperature of battery pack is compared with predetermined temperature threshold, to obtain comparative result；And according to the comparative result
The closed and disconnected of first contactor is controlled, wherein when the temperature of the battery pack is less than the temperature threshold, control closure
One or more of several first contactors of correspondence several battery units；When the temperature of the battery pack is equal to
Or during more than the temperature threshold, control disconnects several described first contactors.
According to an embodiment of the present invention, wherein, when the battery pack temperature be less than the temperature threshold when, control
One or more of several described first contactors of closure further comprise：According to the temperature of the battery pack and the temperature
The difference of threshold value is spent, it is determined that closing the quantity of the first contactor.
According to an embodiment of the present invention, wherein when the temperature of the battery pack is less than the temperature threshold, controlling
One or more of several described first contactors of closure include：In turn closed in multiple time intervals described some
Multiple in individual first contactor simultaneously disconnect other first contactors.
According to an embodiment of the present invention, wherein when the battery pack temperature is less than the temperature threshold, control is closed
Closing one or more of several described first contactors includes：It is closed at many in several described first contactors
It is individual；And the electric current between several battery units described in pulsewidth modulation and its described first resistor in parallel.
According to an embodiment of the present invention, wherein the battery pack is radiated by the air cooling system of the vehicle；And institute
Stating method also includes：Several first resistors corresponding to several battery units are arranged on to the sky of the air cooling system
Gas porch.
According to an embodiment of the present invention, wherein methods described also includes：Several described battery units will be corresponded to
Several first resistors be evenly distributed in the battery pack.
According to an embodiment of the present invention, wherein the battery pack is radiated by the liquid cooling system of the vehicle；And institute
Stating method also includes：Several first resistors corresponding to several battery units are positioned against into the battery pack to put down
It is distributed.
According to an embodiment of the present invention, wherein methods described also includes：Detect the area in several regions in battery pack
Domain temperature；The regional temperature detected is compared with predetermined temperature threshold respectively, to obtain comparative result；With
And according to the comparative result, when the regional temperature is less than the temperature threshold, control closure is located at or near the area
The first contactor at least corresponding to a first resistor in domain.
According to an embodiment of the present invention, wherein methods described also includes：Detect each battery unit in battery pack
Temperature；The temperature of the battery unit detected is compared with predetermined temperature threshold, to obtain comparative result；With
And according to the comparative result, when the battery cell temperature is less than the temperature threshold, control is closed near the electricity
The first contactor at least corresponding to a first resistor of pool unit.
According to an embodiment of the present invention, wherein methods described also includes：Measure each in battery pack charging process
The magnitude of voltage of battery unit；Determine the minimum value in the magnitude of voltage；By the magnitude of voltage of each battery unit and the electricity
Minimum value in pressure value compares acquisition voltage difference；The voltage difference is compared with default voltage difference threshold value；And it is described
When the temperature of the battery pack is less than the temperature threshold, one in several described described first contactors of control closure
Or multiple further comprise：When the temperature of the battery pack is less than the temperature threshold and corresponding in the presence of an at least battery unit
When voltage difference is equal to or more than the default voltage difference threshold value, an at least battery unit corresponding first described in control closure
Contactor；When the temperature of the battery pack is less than the default temperature threshold and corresponding voltage difference of each battery unit is equal
During less than the default voltage difference threshold value, the corresponding first contactor of each battery unit of control closure.
In a word, the apparatus and method for being used to control the temperature of battery pack that embodiments of the present invention are provided, are not only suitable for
Using the vehicle of air cooling system, the vehicle using liquid cooling system is also applied for；It can control respectively around each region of battery pack
Heat, temperature is adjusted to each battery unit respectively, while the speed that battery pack can be controlled to heat up as needed, puts down heat
It is distributed, so that all battery unit heating have identical temperature；The electric current in Vehicular battery circuit can be avoided in short-term
It is interior to be widely varied, so that it is guaranteed that the curtage of battery circuit is stable；What is produced when can work battery circuit is big
Amount amount of localized heat is managed；And any extra part need not be introduced, it is not required that it is set to the electricity that heater element is powered
Source, simplifies the structure of battery circuit, reduces cost.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 be according to an embodiment of the present invention in be used for control battery pack temperature device schematic diagram；
Fig. 2 be according to an embodiment of the present invention in be used for control battery pack temperature method flow chart.
Embodiment
The illustrative embodiments of the disclosure are more fully described below with reference to accompanying drawings.Although showing this public affairs in accompanying drawing
The illustrative embodiments opened, it being understood, however, that may be realized in various forms the disclosure without the reality that should be illustrated here
The mode of applying is limited.Conversely it is able to be best understood from the disclosure there is provided these embodiments, and can be by this public affairs
The scope opened completely convey to those skilled in the art.Although it should be appreciated that those skilled in the art are not it is contemplated that have
Have and be expressly recited or record in this manual but realize the present invention and be included in present invention spirit, principle and model
Enclose interior various structures.All examples and conditional language quoted from this specification are all in order at the purpose of explanation and teaching,
To help reader to understand principle and concept that inventor contributes to prior art, and should be understood that to be not limited to these
The example and condition specifically quoted from.In addition, in order to illustrate more clearly of eliminating for the detailed of known devices, circuit and method
Thin description, not obscure description of the invention.It should be understood that unless stated otherwise, the feature in each embodiment described herein
It can be combined with each other.
In this manual, the function of each unit can be by using specialized hardware or can be with appropriate software
It is combined to perform the hardware of processing to realize.Such hardware or specialized hardware can include application specific integrated circuit (ASIC),
Various other circuits, various processors etc..When being realized by processor, the function can be by single application specific processor, single common
Processor or multiple independent processors (some of which may be shared) is enjoyed to provide.In addition, processor should not be managed
Solve to refer exclusively to be able to carry out the hardware of software, but can implicitly include and be not limited to digital signal processor (DSP) firmly
Part, the read-only storage (ROM) for storing software, random access memory (RAM) and non-volatile memory apparatus.
According to the first aspect of the invention there is provided a kind of device for being used to control the temperature of battery pack, wherein the electricity
Pond group includes a Battery pack unit of series connection, it is characterised in that described device includes：Several first series circuits, described
Each of one series circuit includes some in the first contactor and first resistor being arranged in series, the Battery pack unit
Each in individual battery unit is in parallel with one first series circuit respectively；Temperature detecting unit, the temperature for detecting battery pack
Degree；Temperature comparing unit, for the temperature of the battery pack detected to be compared with predetermined temperature threshold, to obtain
Obtain comparative result；And battery management unit, the closed and disconnected for controlling first contactor according to the comparative result,
Wherein when the temperature of the battery pack is less than the temperature threshold, battery management unit control closure several described first connect
One or more of tentaculum；When the temperature of the battery pack is equal to or more than the temperature threshold, battery management unit control
System disconnects several described first contactors.
According to the embodiment of the present invention, battery pack, such as lithium battery group, are the other parts to the high-pressure system of vehicle,
Such as inverter or motor, the power supply of power supply.Alternatively, battery pack may include multiple battery units, and these battery units can be with
Various combined serials and/or it is connected in parallel, to provide required voltage and energy.For example, battery pack may include that multiple series connection connect
The battery unit connect, each battery unit may also include multiple series connection and/or the battery being connected in parallel.In order to pack, install, pacify
The purposes such as full management and control, these battery units could be arranged to independent module.For example, there are 96 series connection for one
Battery pack, can be set to 12 battery modules being connected in series by the battery pack of the battery of connection, and each module includes 8 series connection
The battery unit of connection.
It will be understood by those skilled in the art that the quantity of each part cited in the exemplary embodiment of the present invention is only
It is for illustrative purposes, and to be not construed as limitation of the present invention.Each part can have other numbers in the present invention
Amount, is made without departing from the scope of the present invention.
According to an illustrative embodiment of the invention, contactor can switch on or off circuit by closing or disconnecting
Switch, can be A.C. contactor or D.C. contactor.
According to the embodiment of the present invention, first resistor can be the resistance in vehicle balance circuit.Balance in vehicle
In circuit, each battery unit in resistance and battery pack is connected in parallel and is provided between resistance and battery unit and connect respectively
Tentaculum.By close or disconnect contactor, can optionally through these resistance consumption battery units energy, by battery
Cell discharge, while producing heat.For example, by charge level highest cell discharge, its charge level is reduced to
The charge level of the battery unit of other in battery pack, so that each battery unit in balancing battery group so that each battery list
Member is respectively provided with close charged state, it is allowed to which battery pack works in optimum state.
Fig. 1 shows the non-limiting and exemplary embodiment of the present invention.It should be appreciated that represented by Fig. 1
The annexation of each unit is merely illustrative, and those skilled in the art completely can be using other annexations, as long as at this
Each unit can also realize the function of the present invention under the annexation of sample.
As shown in figure 1, the battery pack includes a Battery pack unit of series connection, such as ten including series connection battery unit
A 101-110 Battery pack unit.Device 100 may include several, such as four the first series circuits, first series circuit
Each include the first contactor and first resistor that are arranged in series, such as a first series circuit bag shown in Fig. 1
Include the first contactor 111 and first resistor 121 being arranged in series.In several battery units in the one Battery pack unit
Each, such as each in four battery unit 101-104 in ten battery units, respectively with one first series circuit
It is in parallel.For example, battery unit 101 and the first contactor 111 for including being arranged in series and the first series circuit of first resistor 121
It is in parallel.Alternatively, the battery pack can have the battery unit of other quantity.Alternatively, can be only in the Battery pack unit
There is a battery unit in parallel with first resistor by first contactor.Alternatively, all electricity in the Battery pack unit
Pool unit or the battery unit of other quantity can be in parallel with respective first resistor by respective first contactor.
As shown in figure 1, described device 100 includes four the first series circuits, each first series circuit includes one
The first contactor and a first resistor, temperature detecting unit 130, temperature comparing unit 140 and battery management list
Member 150.
According to an illustrative embodiment of the invention, temperature detecting unit 130 is used for the temperature for detecting battery pack.It is optional
Ground, temperature detecting unit 130 can be one group of temperature sensor, be separately positioned in each battery unit, for detecting respectively
The temperature of each battery unit.Alternatively, temperature detecting unit 130 can be a temperature sensor, for detecting whole electricity
The temperature of pond group.
According to an illustrative embodiment of the invention, temperature comparing unit 140 is used to detect temperature detecting unit 130
The battery pack temperature T and predetermined temperature threshold T0Compare, to obtain comparative result.Alternatively, in advance really
Fixed temperature threshold T0Temperature when can be battery pack operating efficiency highest.
According to an illustrative embodiment of the invention, battery management unit 150 is used to be controlled according to the comparative result
The closed and disconnected of first contactor, wherein when the temperature T of the battery pack is less than the temperature threshold T0When, battery management list
One or more of several described first contactors of the control closure of member 150；When the temperature T of the battery pack is equal to or more than
The temperature threshold T0When, the control of battery management unit 150 disconnects several described first contactors.For example, working as temperature detection
The temperature T for the battery pack that unit 130 is detected is less than temperature threshold T0When, the control closure of battery management unit 150 is as shown in Figure 1
Four first contactor 111-114 in two, such as closure first contactor 112 and 113, then first contactor 112 and 113
First resistor 122 and 123 is electrically connected in parallel with battery unit 102 and 103 respectively, first resistor 122 and 123 is produced after being powered
Heat amount, so as to heat battery pack.When the temperature T for the battery pack that temperature detecting unit 130 is detected is equal to or more than the temperature
Spend threshold value T0When, the control of battery management unit 150 disconnects four first contactor 111-114, then does not have in first resistor 121-124
Have electric current, no longer produce heat, thus by the temperature T of battery pack maintain temperature threshold or make the temperature of battery pack through radiate by
Gradually it is reduced to temperature threshold T0.It is alternatively possible to which the resistance using in vehicle in balancing circuitry is used as first resistor, it is not necessary to draw
Enter any extra part to heat battery unit, it is not required that be set to heat the power supply that extra part is powered, simplify
The structure of battery circuit, reduces cost.
According to an illustrative embodiment of the invention, wherein the battery management unit 150 is used for：According to the battery pack
Temperature and the temperature threshold difference, it is determined that closing the quantity of the first contactor.Alternatively, temperature detecting unit is worked as
The temperature T of 130 battery packs detected is far below temperature threshold T0When, greater number of first contactor can be closed, so that
Battery pack heats up quickly.Alternatively, when the temperature T for the battery pack that temperature detecting unit 130 is detected is just slightly below temperature threshold
Value T0When, small number of first contactor can be closed, so that battery pack slowly heats up.For example, working as temperature detecting unit
The temperature T and temperature threshold T of 130 battery packs detected0Difference DELTA T >=40 DEG C when, as shown in Figure 1 all four of closure
First contactor 111-114；As the temperature T and temperature threshold T of the battery pack that temperature detecting unit 130 is detected0Difference DELTA T
When between 25~40 DEG C, three first contactors in closure four first contactors as shown in Figure 1, the such as first contact
Device 111,112 and 113；As the temperature T and temperature threshold T of the battery pack that temperature detecting unit 130 is detected0Difference DELTA T exist
When between 10~25 DEG C, two first contactors in closure four first contactors as shown in Figure 1, such as first contactor
112 and 113；As the temperature T and temperature threshold T of the battery pack that temperature detecting unit 130 is detected0Difference DELTA T≤10 DEG C when,
Only close a first contactor in four first contactors as shown in Figure 1, such as first contactor 113.Alternatively, when
The temperature T for the battery pack that temperature detecting unit 130 is detected is equal to or more than the temperature threshold T0When, disconnect as shown in Figure 1
All four first contactors.In this way, a large amount of amount of localized heat produced when can work battery circuit are carried out
Management, and the heat around each region of battery pack can be controlled respectively, temperature is adjusted respectively to each battery unit, while can
The speed of control battery pack heating, is evenly distributed heat as needed, so that all battery unit heating have identical
Temperature；
According to an illustrative embodiment of the invention, the battery management unit 150 is used for：When the temperature of the battery pack
During less than the temperature threshold, multiple in several described first contactors are in turn closed in multiple time intervals and are broken
Open other first contactors.Alternatively, when the temperature T of the battery pack is less than the temperature threshold T0When, can be by closing
Three first contactors 111,113 and 114 in four first contactor 111-114 as shown in Figure 1 are closed by first resistor
121st, 123 and 124 electrically connected respectively with battery unit 101,103 and 104, so that battery unit 101,103 and 104 be heated.
Three first contactors 111,113 and 114 can be in turn closed in three time intervals and other first contactors, example is disconnected
Such as first contactor 111 is only closed in very first time interval and disconnect other first contactors, in the second time interval only
Closure first contactor 113 simultaneously disconnects other first contactors, and first contactor 114 is only closed in the 3rd time interval and is broken
Open other first contactors.In this way, in another embodiment, first contactor is closed in very first time interval
111st, 112 and disconnect other first contactors, first contactor 113,114 is closed in the second time interval and disconnect other the
One contactor, in this way, closing section first contactor and other contactors is opened in each time interval, can
The electric current in Vehicular battery circuit is avoided to be widely varied in a short time, so that it is guaranteed that the curtage of battery circuit is steady
It is fixed.
According to an illustrative embodiment of the invention, the battery management unit 150 is used for：When the battery pack temperature is small
When the temperature threshold, it is closed at multiple in several described first contactors；And described in pulsewidth modulation several
Electric current between battery unit and the first resistor connected in parallel.Alternatively, described in being less than as the temperature T of the battery pack
Temperature threshold T0When, can be by closing three first contactors in four first contactor 111-114 as shown in Figure 1
111st, 113 and 114, first resistor 121,123 and 124 is electrically connected with battery unit 101,103 and 104 respectively, so that by electricity
Pool unit 101,103 and 104 is heated；Three first contactors 111,113 and 114 can be closed at, while pulsewidth modulation battery
Electric current between unit 101,103 and 104 and first resistor 121,123 and 124 connected in parallel.In this way, it can keep away
The electric current exempted from Vehicular battery circuit is widely varied in a short time, so that it is guaranteed that the curtage of battery circuit is stable.
According to an illustrative embodiment of the invention, the battery pack is radiated by the air cooling system of the vehicle, and institute
Several first resistors are stated to be arranged at the air intake of the air cooling system.The air cooling system of vehicle uses the sky in driver's cabin
Gas is heated or radiated to battery pack as the source being heated or cooled.By the way that several first resistors are arranged on into the wind
At the air intake of cooling system so that the air in driver's cabin is arranged on the air cooling system when by air intake
Air intake first resistor heating, the air after heating quickly reached and surrounds battery pack, and battery pack is heated.This side
Formula, can by heat faster, be more uniformly delivered to battery pack, and add the contact area that battery pack participates in heat transfer, from
And battery pack is quickly heated up.
According to an illustrative embodiment of the invention, several described first resistors are configured as being evenly distributed in the electricity
Around the group of pond.Alternatively, as shown in figure 1, the battery pack of device 100 includes ten battery unit 101-110, wherein four batteries
Unit 101-104 is in parallel with respective first resistor 121-124 by respective first contactor 111-114 respectively, this four
First resistor 121-124 can be configured as being evenly distributed in around battery pack, i.e. battery unit 101-110.For example, working as battery pack
In battery unit 101-110 along a straight line successively equidistantly when, first resistor 121 is arranged on battery unit 102 and 103
Between, first resistor 122 is arranged at battery unit 105, and first resistor 123 is arranged between battery unit 107 and 108, the
One resistance 124 is arranged at battery unit 110, so that each several part of battery pack is uniformly heated.Alternatively, can be by four first electricity
Resistance 121-124 is set to a module, and ten battery unit 101-110 are evenly distributed on to the circumference using the module as the center of circle
On.Alternatively, ten battery unit 101-110 can be set to a module, four first resistor 121-124 is uniformly distributed
On using the module as the circumference in the center of circle.Alternatively, first resistor can be set against battery pack, may be alternatively provided as apart from battery pack
One segment distance.
According to an illustrative embodiment of the invention, the battery pack is radiated by the liquid cooling system of the vehicle；And institute
State several first resistors and be positioned against the battery pack and be evenly distributed.As shown in figure 1, the battery pack of device 100 includes ten
Individual battery unit 101-110, wherein four battery unit 101-104 respectively by respective first contactor 111-114 with it is each
From first resistor 121-124 it is in parallel, when battery pack is radiated by the liquid cooling system of the vehicle, this four first resistor 121-
124 be may be configured as abutting the battery pack, i.e. battery unit 101-110 is evenly distributed.For example, when the battery unit in battery pack
101-110 along a straight line successively equidistantly when, first resistor 121 is positioned against battery unit 102 and 103, the first electricity
Resistance 122 is positioned against battery unit 105, and first resistor 123 is positioned against battery unit 107 and 108, first resistor 124
Battery unit 110 is positioned against, so that heat can be directly delivered to battery pack from first resistor, so that by each portion of battery pack
Divide uniform heating.Alternatively, four first resistor 121-124 can be set to a module, by ten battery unit 101-110
It is uniformly distributed against the module.Alternatively, ten battery unit 101-110 can be set to a module, by four first electricity
Resistance 121-124 is uniformly distributed against the module.
According to an illustrative embodiment of the invention, wherein：If the temperature detecting unit is additionally operable in detection battery pack
The regional temperature in dry region；The temperature comparing unit is additionally operable to the regional temperature that will be detected respectively with predefining
Temperature threshold compare, to obtain comparative result；And the battery management unit is additionally operable to according to the comparative result, when
The regional temperature be less than the temperature threshold when, control closure be located at or near the region an at least first resistor institute it is right
The first contactor answered.With reference to Fig. 1, when several described first resistors be configured as being evenly distributed in the battery pack or
Several described first resistors are positioned against in the case that the battery pack is evenly distributed, for example, when the battery in battery pack
Unit 101-110 along a straight line successively equidistantly when, first resistor 121 is arranged between battery unit 102 and 103,
One resistance 122 is arranged at battery unit 105, and first resistor 123 is arranged between battery unit 107 and 108, first resistor
124 are arranged at battery unit 110, so that each several part of battery pack is uniformly heated.Temperature detecting unit 130 can detect Fig. 1 institutes
The regional temperature in several regions in the battery pack shown, for example, can detect trizonal area at battery unit 102,105 and 107
Domain temperature T2、T5And T7, temperature comparing unit 140 is by the regional temperature T detected2、T5And T7Respectively with temperature threshold T0
Compare, to obtain comparative result；Battery management unit 150 is used for according to the comparative result, when only battery unit 102 and 105
The regional temperature T at place2And T5Less than T0, control closure to be connect near first corresponding to the first resistor 121 of battery unit 102
Tentaculum 111, and closure are located at the first contactor 112 corresponding to the first resistor 122 at battery unit 105.
According to an illustrative embodiment of the invention, wherein：The temperature detecting unit is additionally operable to every in detection battery pack
The temperature of one battery unit；The temperature comparing unit is additionally operable to the temperature for the battery unit that will be detected with predefining
Temperature threshold compare, to obtain comparative result；And the battery management unit is additionally operable to according to the comparative result
The closed and disconnected of first contactor is controlled, wherein when the battery cell temperature is less than the temperature threshold, the battery
Administrative unit control is closed near the first contactor corresponding to an at least first resistor for the battery unit.With reference to Fig. 1,
When several described first resistors are configured as being evenly distributed in the battery pack or the setting of several described first resistors
In the case of being evenly distributed against the battery pack, for example, when the battery unit 101-110 in battery pack along a straight line successively
When equidistantly, first resistor 121 is arranged between battery unit 102 and 103, and first resistor 122 is arranged on battery unit
At 105, first resistor 123 is arranged between battery unit 107 and 108, and first resistor 124 is arranged at battery unit 110, with
The each several part of battery pack is set uniformly to heat.Temperature detecting unit 130 can detect each battery unit in battery pack shown in Fig. 1
101-110 temperature T1-T10；Temperature comparing unit 140 is by the temperature T of the battery unit detected1-T10With temperature threshold
T0Compare, to obtain comparative result；Battery management unit 150 controls the closure of first contactor according to the comparative result and broken
Open, the regional temperature T at only battery unit 102 and 1052And T5Less than T0, the battery management unit control, which is closed, most leans on
First contactor 111 corresponding to the first resistor 121 of nearly battery unit 102, and closure be located at battery unit 105 the
First contactor 112 corresponding to one resistance 122.
According to an illustrative embodiment of the invention, described device 100 also includes several voltage measurement units, if described
Each in parallel with each in several described battery units respectively, described voltage measurement list of dry voltage measurement unit
Member is used for the magnitude of voltage that each battery unit is measured in battery pack charging process；The battery management unit is additionally operable in battery
The minimum value in the magnitude of voltage is determined in group charging process；By in the magnitude of voltage of each battery unit and the magnitude of voltage
Minimum value compare acquisition voltage difference；The voltage difference is compared with default voltage difference threshold value；When the battery pack
Temperature is less than the default temperature threshold and there is the corresponding voltage difference of an at least battery unit equal to or more than described pre-
If voltage difference threshold value when, the corresponding first contactor of an at least battery unit described in battery management unit control closure；
When the temperature of the battery pack is less than the default temperature threshold and corresponding voltage difference of each battery unit is respectively less than institute
When stating default voltage difference threshold value, the corresponding first contactor of each battery unit is closed.
As shown in figure 1, device 100 may also include four voltage measurement unit 161-164, this four voltage measurement units
Each is in parallel with each in four battery unit 101-104 respectively, and voltage measurement unit 161-164 is used in battery pack
The magnitude of voltage V of each battery unit is measured in charging process1-V4.The battery management unit 150 is additionally operable to charge in battery pack
During determine magnitude of voltage V1-V4In minimum value VminIf, for example, the magnitude of voltage V of battery unit 1022It is V1-V4It is middle minimum,
Then Vmin=V2；By the minimum value V in the magnitude of voltage of each battery unit and the magnitude of voltageminCompare acquisition voltage difference
Value, such as battery unit 101-104 voltage difference is respectively Δ V1=V1-Vmin, Δ V2=0, Δ V3=V3-Vmin, Δ V4=
V4-Vmin；By the voltage difference and default voltage difference threshold value Δ V0Compare；When the temperature T of the battery pack is less than described pre-
If temperature threshold T0And there is the corresponding voltage difference of an at least battery unit equal to or more than the default voltage difference threshold
During value, the voltage difference Δ V of such as battery unit 101 and 1041With Δ V4Equal to or more than voltage difference threshold value Δ V0, then cell tube
Manage the corresponding first contactor 111 and 114 of the closure battery unit 101 and 104 of unit 150 so that first resistor 121 and 124 is produced
Heat amount is to heat battery pack, while by two battery units of first resistor 121 and 124 pairs of charge level highests 101 and 104
Electric discharge, its charge level is reduced to the charge level of the battery unit of other in battery pack, so that every in balancing battery group
Individual battery unit so that each battery unit is respectively provided with similar charged state, it is allowed to which battery pack works in optimum state.Work as institute
The temperature T for stating battery pack is less than the default temperature threshold T0And the corresponding voltage difference Δ V of each battery unit1-ΔV4
Less than the default voltage difference threshold value V0When, the corresponding first contactor 111-114 of each battery unit 101-104 are closed,
So that four first resistor 121-124 produce heat for battery group, while each of battery unit 101-104 is by each
From first resistor 121-124 discharged, then corresponding voltage difference Δ V of each battery unit 101-1041-ΔV4It will protect
Hold as less than default voltage difference threshold value V0, so that each battery unit in battery pack still has similar charged state,
Battery pack is allowed to be worked in optimum state.
As described above, the invention discloses the above-mentioned device for being used to control the temperature of battery pack, being not only suitable for using air-cooled
The vehicle of system, is also applied for the vehicle using liquid cooling system；The heat around each region of battery pack can be controlled respectively, to every
Individual battery unit adjusts temperature respectively, while the speed that battery pack can be controlled to heat up as needed, is evenly distributed heat, with
Heating all battery units has identical temperature；Electric current in Vehicular battery circuit can be avoided in a short time significantly
Change, so that it is guaranteed that the curtage of battery circuit is stable；The a large amount of amount of localized heat produced when can work battery circuit
It is managed；And any extra part need not be introduced, it is not required that the power supply that heater element is powered is set to, electricity is simplified
The structure of pond circuit, reduces cost.
According to the second aspect of the invention, corresponding to as described above according to the present invention for controlling battery pack temperature
There is provided a kind of method 200 for being used to control the temperature of battery pack for device.According to the embodiment of the present invention, the battery pack
A Battery pack unit 101-110 including series connection.
Fig. 2 shows the temperature for being used to control battery pack of the non-limiting and exemplary embodiment of the present invention
The flow chart of method 200.As shown in Fig. 2 methods described includes：Step S210：Several the first series circuits, described are set
Each of one series circuit includes some in the first contactor and first resistor being arranged in series, the Battery pack unit
Each in individual battery unit is in parallel with one first series circuit respectively；Step S220：Detect the temperature of battery pack；Step
S230 compares the temperature T of the battery pack detected with predetermined temperature threshold, to obtain comparative result；And
Step S240 controls the closed and disconnected of first contactor according to the comparative result, wherein when the temperature of the battery pack is small
When the temperature threshold, control closed pair answers one or many in several first contactors of several battery units
It is individual；When the temperature of the battery pack is equal to or more than the temperature threshold, control disconnects several described first contactors.Can
Selection of land, step S220 can be performed by the temperature detecting unit 130 in device 100.Alternatively, step S230 can be in device 100
Temperature comparing unit 140 perform.Alternatively, step S240 can be performed by the battery management unit 150 in device 100.
According to an illustrative embodiment of the invention, wherein when the battery pack temperature be less than the temperature threshold when,
One or more of several described first contactors of control closure further comprise：According to the temperature of the battery pack and institute
The difference of temperature threshold is stated, it is determined that closing the quantity of the first contactor.
According to an illustrative embodiment of the invention, wherein when the battery pack temperature be less than the temperature threshold when,
One or more of several described first contactors of control closure include：In turn closed in multiple time intervals described
Multiple in several first contactors simultaneously disconnect other first contactors.
According to an illustrative embodiment of the invention, wherein when the battery pack temperature is less than the temperature threshold, controlling
One or more of several described first contactors of system closure include：It is closed in several described first contactors
It is multiple；And the electric current between several battery units described in pulsewidth modulation and its described first resistor in parallel.
According to an illustrative embodiment of the invention, wherein the battery pack is radiated by the air cooling system of the vehicle；And
And methods described 200 also includes：Several first resistors corresponding to several battery units are arranged on described air-cooled
At the air intake of system.
According to an illustrative embodiment of the invention, wherein methods described 200 also includes：Several described electricity will be corresponded to
Several first resistors of pool unit are evenly distributed in the battery pack.
According to an illustrative embodiment of the invention, wherein the battery pack is radiated by the liquid cooling system of the vehicle；And
And methods described 200 also includes：Several first resistors corresponding to several battery units are positioned against described
Battery pack is evenly distributed.
According to an illustrative embodiment of the invention, wherein methods described 200 also includes：Detect several areas in battery pack
The regional temperature in domain；The regional temperature detected is compared with predetermined temperature threshold respectively, to be compared
As a result；And according to the comparative result, when the regional temperature is less than the temperature threshold, control closure is located at or most leaned on
The first contactor at least corresponding to a first resistor in the nearly region.
According to an illustrative embodiment of the invention, wherein methods described 200 also includes：Detect each battery in battery pack
The temperature of unit；The temperature of the battery unit detected is compared with predetermined temperature threshold, to be compared
As a result；And the closed and disconnected of first contactor is controlled according to the comparative result, wherein when the battery cell temperature
During less than the temperature threshold, control closure is contacted near first corresponding to an at least first resistor for the battery unit
Device.
According to an illustrative embodiment of the invention, wherein methods described 200 also includes：Surveyed in battery pack charging process
Measure the magnitude of voltage of each battery unit；Determine the minimum value in the magnitude of voltage；By the magnitude of voltage of each battery unit with
Minimum value in the magnitude of voltage compares acquisition voltage difference；The voltage difference is compared with default voltage difference threshold value；And
And it is described when the temperature of the battery pack is less than the temperature threshold, in several described described first contactors of control closure
One or more further comprise：When the temperature of the battery pack is less than the temperature threshold and there is an at least battery unit
When corresponding voltage difference is equal to or more than the default voltage difference threshold value, at least battery unit correspondence described in control closure
First contactor；When the temperature of the battery pack is less than the default temperature threshold and the corresponding voltage of each battery unit
When difference is respectively less than the default voltage difference threshold value, the corresponding first contactor of each battery unit of control closure.
Foregoing description for controlling the device 100 of battery pack temperature can also be applied to according to the present invention for controlling
The method 200 of battery pack temperature, for brief purpose, will not be repeated here.
As described above, the invention discloses the above-mentioned method for being used to control the temperature of battery pack, being not only suitable for using air-cooled
The vehicle of system, is also applied for the vehicle using liquid cooling system；The heat around each region of battery pack can be controlled respectively, to every
Individual battery unit adjusts temperature respectively, while the speed that battery pack can be controlled to heat up as needed, is evenly distributed heat, with
Heating all battery units has identical temperature；Electric current in Vehicular battery circuit can be avoided in a short time significantly
Change, so that it is guaranteed that the curtage of battery circuit is stable；The a large amount of amount of localized heat produced when can work battery circuit
It is managed；And any extra part need not be introduced, it is not required that the power supply that heater element is powered is set to, electricity is simplified
The structure of pond circuit, reduces cost.
In this manual, substantial amounts of detail is illustrated.It will be appreciated, however, that embodiments of the present invention can be with
Implement in the case of these no details.In some embodiments, be not been shown in detail known method, structure and
Technology, so as not to make reader obscure the understanding to the principle of this specification.
It will be understood by those skilled in the art that can be carried out adaptively to the module in the device in each embodiment
Change, and they are arranged in one or more devices different from the embodiment.Except feature or processing mutually row
Outside the situation of reprimand, any combinations can be used, to all steps or any dress of any method disclosed in this specification
All modules put are combined.Unless expressly stated otherwise, each feature disclosed in this specification can be by offer phase
Same, equivalent or similar purpose alternative features are replaced.
It should be noted that the present invention will be described rather than limits the invention for above-mentioned embodiment, and ability
Field technique personnel can design various alternate embodiments in the case of without departing from scope of the following claims.In right
In claim, the sequence of feature is not meant to any particular order of feature, and especially, is respectively walked in claim to a method
Rapid order is not meant to that these steps must sequentially be performed according to this.On the contrary, these steps can be with any appropriate
Order perform.In detail in the claims, any reference marker in bracket should not be understood as to the limit to claim
System.Term " comprising " or "comprising" do not exclude the presence of module or step not listed in the claims.Positioned at module or step it
Preceding term "a" or "an" does not exclude the presence of multiple such modules or step.Term " first ", " second " and "
Three " etc. use does not indicate that any order, these terms can be construed into title.
Claims (20)
1. a kind of device for being used to control the temperature of battery pack, the battery pack includes a Battery pack unit of series connection, its feature
It is, described device includes：
Several first series circuits, each of first series circuit includes the first contactor and first being arranged in series
Each of several battery units in resistance, the Battery pack unit is in parallel with one first series circuit respectively, described
First resistor is the resistance in vehicle balance circuit；
Temperature detecting unit, the temperature for detecting battery pack；
Temperature comparing unit, for the temperature of the battery pack detected to be compared with predetermined temperature threshold, with
Obtain comparative result；And
Battery management unit, the closed and disconnected for controlling first contactor according to the comparative result, wherein when described
When the temperature of battery pack is less than the temperature threshold, battery management unit control closes one in several described first contactors
It is individual or multiple；When the temperature of the battery pack is equal to or more than the temperature threshold, battery management unit control disconnects described
Several first contactors.
2. device as claimed in claim 1, wherein the battery management unit is used for：
According to the temperature of the battery pack and the difference of the temperature threshold, it is determined that closing the quantity of the first contactor.
3. device as claimed in claim 1 or 2, wherein the battery management unit is used for：
When the temperature of the battery pack is less than the temperature threshold, in turn closed in multiple time intervals it is described several
Multiple in first contactor simultaneously disconnect other first contactors.
4. device as claimed in claim 1 or 2, wherein the battery management unit is used for：
When the battery pack temperature is less than the temperature threshold, it is closed at multiple in several described first contactors；
And
Electric current between several battery units described in pulsewidth modulation and the first resistor connected in parallel.
5. device as claimed in claim 1 or 2, wherein：
The battery pack is radiated by the air cooling system of the vehicle, and several described first resistors are arranged on the air-cooled system
At the air intake of system.
6. device as claimed in claim 1, wherein：
Several described first resistors are configured as being evenly distributed in the battery pack.
7. device as claimed in claim 1, wherein：
The battery pack is radiated by the liquid cooling system of the vehicle, and several described first resistors are configured as against described
Battery pack is evenly distributed.
8. the device that such as claim 6 or 7 is stated, wherein：
The temperature detecting unit is additionally operable to detect the regional temperature in several regions in battery pack；
The temperature comparing unit is additionally operable to the regional temperature that will detect respectively compared with predetermined temperature threshold
Compared with to obtain comparative result；And
The battery management unit is additionally operable to according to the comparative result, when the regional temperature is less than the temperature threshold,
Control closure is located at or near the first contactor corresponding to an at least first resistor in the region.
9. the device that such as claim 6 or 7 is stated, wherein：
The temperature detecting unit is additionally operable to detect the temperature of each battery unit in battery pack；
The temperature comparing unit is additionally operable to the temperature and predetermined temperature threshold phase for the battery unit that will be detected
Compare, to obtain comparative result；And
The battery management unit is additionally operable to control the closed and disconnected of first contactor according to the comparative result, wherein when
When the battery cell temperature is less than the temperature threshold, the battery management unit control is closed near the battery unit
The first contactor at least corresponding to a first resistor.
10. device as claimed in claim 1, wherein described device also include several voltage measurement units, it is described several
Each of voltage measurement unit is in parallel with each in several described battery units respectively, and the voltage measurement unit is used
In the magnitude of voltage that each battery unit is measured in battery pack charging process；
The battery management unit is additionally operable to determine the minimum value in the magnitude of voltage in battery pack charging process；By each institute
The magnitude of voltage for stating battery unit is compared acquisition voltage difference with the minimum value in the magnitude of voltage；By the voltage difference with presetting
Voltage difference threshold value compare；When the temperature of the battery pack is less than the default temperature threshold and there is an at least battery unit
When corresponding voltage difference is equal to or more than the default voltage difference threshold value, described in the battery management unit control closure extremely
The corresponding first contactor of a few battery unit；When the temperature of the battery pack is less than the default temperature threshold and each electricity
When the corresponding voltage difference of pool unit is respectively less than the default voltage difference threshold value, the battery management unit control closure is each
The corresponding first contactor of battery unit.
11. a kind of method for being used to control the temperature of battery pack, the battery pack includes a Battery pack unit of series connection, its feature
It is, methods described includes：
Several the first series circuits are set, first series circuit each include the first contactor being arranged in series and
In several battery units in first resistor, the Battery pack unit each respectively with one first series circuit simultaneously
Connection, the first resistor is the resistance in vehicle balance circuit；
Detect the temperature of battery pack；
The temperature of the battery pack detected is compared with predetermined temperature threshold, to obtain comparative result；And
The closed and disconnected of first contactor is controlled according to the comparative result, wherein when the temperature of the battery pack is less than institute
When stating temperature threshold, control closed pair answers one or more of several first contactors of several battery units；
When the temperature of the battery pack is equal to or more than the temperature threshold, control disconnects several described first contactors.
12. method as claimed in claim 11, wherein, when the temperature of the battery pack is less than the temperature threshold, control
One or more of several described first contactors of closure further comprise：
According to the temperature of the battery pack and the difference of the temperature threshold, it is determined that closing the quantity of the first contactor.
13. the method as described in claim 11 or 12, wherein when the temperature of the battery pack is less than the temperature threshold, control
One or more of several described first contactors of system closure include：
Multiple in several described first contactors are in turn closed in multiple time intervals and other described the are disconnected
One contactor.
14. the method as described in claim 11 or 12, wherein when the battery pack temperature is less than the temperature threshold, control
One or more of several described first contactors of closure include：
It is closed at multiple in several described first contactors；And
Electric current between several battery units described in pulsewidth modulation and its described first resistor in parallel.
15. the method as described in claim 11 or 12, wherein the battery pack is radiated by the air cooling system of the vehicle；And
Methods described also includes：
Several first resistors corresponding to several battery units are arranged at the air intake of the air cooling system.
16. method as claimed in claim 11, wherein methods described also include：
Several first resistors corresponding to several battery units are evenly distributed in the battery pack.
17. method as claimed in claim 11, wherein the battery pack is radiated by the liquid cooling system of the vehicle；And it is described
Method also includes：
Several first resistors corresponding to several battery units are positioned against into the battery pack to be evenly distributed.
18. the method as described in claim 16 or 17, wherein methods described also include：
Detect the regional temperature in several regions in battery pack；
The regional temperature detected is compared with predetermined temperature threshold respectively, to obtain comparative result；And
According to the comparative result, when the regional temperature is less than the temperature threshold, control closure be located at or near this
The first contactor at least corresponding to a first resistor in region.
19. the method as described in claim 16 or 17, wherein methods described also include：
Detect the temperature of each battery unit in battery pack；
The temperature of the battery unit detected is compared with predetermined temperature threshold, to obtain comparative result；With
And
The closed and disconnected of first contactor is controlled according to the comparative result, wherein when the battery cell temperature is less than institute
When stating temperature threshold, control is closed near the first contactor corresponding to an at least first resistor for the battery unit.
20. method as claimed in claim 11, wherein methods described also include：
The magnitude of voltage of each battery unit is measured in battery pack charging process；
Determine the minimum value in the magnitude of voltage；
The magnitude of voltage of each battery unit is compared into acquisition voltage difference with the minimum value in the magnitude of voltage；
The voltage difference is compared with default voltage difference threshold value；And
When the temperature when the battery pack is less than the temperature threshold, in several described described first contactors of closure
It is one or more to further comprise：When the temperature of the battery pack is less than the temperature threshold and there is an at least battery unit pair
When the voltage difference answered is equal to or more than the default voltage difference threshold value, an at least battery unit described in control closure is corresponding
First contactor；When the temperature of the battery pack is less than the default temperature threshold and the corresponding voltage difference of each battery unit
When value is respectively less than the default voltage difference threshold value, the corresponding first contactor of each battery unit of control closure.
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| DE102018213333A1 (en) * | 2018-08-08 | 2020-02-13 | Robert Bosch Gmbh | Method for operating a battery system and electric vehicle |
| CN113873836B (en) * | 2021-09-24 | 2022-08-26 | 珠海格力电器股份有限公司 | Temperature and humidity control method and device of frequency converter, frequency converter and air conditioning unit |
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|---|---|---|---|---|
| CN101606272A (en) * | 2007-02-06 | 2009-12-16 | 巴茨卡普公司 | Power battery module, battery pack, module charging method and vehicle with this battery pack |
| CN101950995A (en) * | 2010-08-27 | 2011-01-19 | 华南师范大学 | Lithium ion power battery pack balanced discharge management system |
| CN103647332A (en) * | 2013-12-26 | 2014-03-19 | 上海航天电源技术有限责任公司 | Passive equalization control system and control method used for maintaining consistency of battery pack |
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| JP2013200966A (en) * | 2012-03-23 | 2013-10-03 | Jm Energy Corp | Power storage cell temperature regulation circuit, and power storage device having the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101606272A (en) * | 2007-02-06 | 2009-12-16 | 巴茨卡普公司 | Power battery module, battery pack, module charging method and vehicle with this battery pack |
| CN101950995A (en) * | 2010-08-27 | 2011-01-19 | 华南师范大学 | Lithium ion power battery pack balanced discharge management system |
| CN103647332A (en) * | 2013-12-26 | 2014-03-19 | 上海航天电源技术有限责任公司 | Passive equalization control system and control method used for maintaining consistency of battery pack |
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