CN101789530A - Fixing potential of battery controller - Google Patents
Fixing potential of battery controller Download PDFInfo
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- CN101789530A CN101789530A CN201010105013A CN201010105013A CN101789530A CN 101789530 A CN101789530 A CN 101789530A CN 201010105013 A CN201010105013 A CN 201010105013A CN 201010105013 A CN201010105013 A CN 201010105013A CN 101789530 A CN101789530 A CN 101789530A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/10—Control circuit supply, e.g. means for supplying power to the control circuit
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention provides a kind of fixing potential of battery controller.Provide a kind of and connect the Towards Higher Voltage and the high capacity of the storage battery of monocell, monitor the technology of the state of monocell, the high voltage part when not losing simultaneously maintenance corresponding to connection in series-parallel.Be connected in series a plurality of monocells to form battery pack, a plurality of this battery pack are connected in series and form series connection unit, with the formation storage battery.In each battery pack, battery control device is set, between battery control device and host control device, connects according to being unified into a string mode in the mode that can communicate by letter.2 communications portion of battery control device and processing section insulation, current potential is identical each other by being unified into the communications portion that a string mode connects, and establishes the current potential that this current potential is the negative side of battery pack.
Description
Technical field
The present invention relates to a kind of be connected in series monocell with form battery pack, the be connected in series Towards Higher Voltage and realizing of the storage battery that this battery pack constitutes monitors and controls the battery system of control system miniaturization of the state of monocell relatively.
Background technology
As everyone knows about a kind of secondary cells (secondary battery) such as lead among the power-equipment of automobile, railway etc. and the UPS of support (backup) usefulness etc., ni-mh, lithium battery that are installed in, in order to obtain required voltage and electric current, the structure of the monocell of connecting and be connected in parallel.
The example of document 1,2 all is the patent about the battery system of Hybrid Vehicle.
In document 1, in the structure of the monocell of the ni-mh that is connected in series, the monitoring voltage of voltage that is connected in series monocell and monitors this monocell is with the group of unit.Each monitoring voltage is accepted the supply of electric power from the monocell of its supervision with the unit.
In addition, be unified into a stringly between the monitoring voltage unit by order wire, insulate by photoelectrical coupler (photocoupler) in the unit, have resistance to pressure at monitoring voltage.So like this, the monitoring voltage unit because the voltage of the Ni-MH battery of the object that monitors is about 12V, so only depend on the insulation of order wire side to finish, can prevent from the monitoring voltage unit is applied the voltage of all series connection, has improved fail safe.
In addition, in document 2, in the structure of lithium monocell that is connected in series, take the monitoring voltage by monocell and in series connection integral body, infer the charge volume of monocell, prevent the mode that battery excessively discharges and recharges.Utilize photoelectrical coupler to make between the voltage monitoring circuit of monocell and battery status estimating device and insulate, the battery status estimating device prevents from the battery status estimating device is applied self the voltage of series connection by accepting power supply from the outside, has improved fail safe.
Patent documentation 1:JP spy opens flat 9-139237 communique
Patent documentation 2:JP spy opens the 2003-70179 communique
Summary of the invention
But, to arrive about 500V with respect to the storage battery that is installed in the hybrid vehicle, but need 1500～2000V aspect the storage battery in being installed in rail truck.For this reason, if still use this storage battery, then the insulated part of battery monitoring unit just must corresponding 1500～2000V.Its result, it is big that dielectric voltage withstand between the voltage monitoring circuit of monocell and battery status estimating device becomes, and will exist the cost of insulated part of battery status estimating device side and the size of insulated part to increase such problem.
In addition, owing to along with there are the high voltage part in Towards Higher Voltage and high capacity, so when maintenance, follow danger such as electric shock.
Therefore, the object of the invention is, a kind of Towards Higher Voltage of the storage battery that constitutes corresponding to connection in series-parallel connects the battery pack of the monocell that is connected in series and miniaturization that high capacity comes implement device and the battery control system and the battery system of cost degradation are provided.
To achieve these goals, a kind of battery control device comprises at least: control section; First telecommunication circuit that communicates with the battery control device that is connected in a side; The second communication circuit that communicates with the battery control device that is connected at opposite side; Accept that electric power is supplied with and produce electric power that the control circuit of battery control device uses and the power circuit of the electric power that the second communication circuit is used from battery pack; Make first insulating mechanism of the control section and first telecommunication circuit insulation; And second insulating mechanism that makes control section and the insulation of second communication circuit; Wherein, first telecommunication circuit in the battery control device is carried out connection with second communication circuit in the battery control device that is connected in an above-mentioned side.
The invention effect
According to the present invention, provide a kind of and be connected in series monocell and form battery pack, corresponding connection in series-parallel connects this battery pack and Towards Higher Voltage, the miniaturization of implement device and the battery control system of cost degradation and the battery control method of the storage battery that constitutes.
Description of drawings
Fig. 1 is the structure chart of an embodiment of expression battery control system of the present invention.
Fig. 2 is the current potential of the battery control device in the presentation graphs 1 and the figure of insulation.
Fig. 3 is the figure of each interior current potential of the battery control device in the presentation graphs 2.
Fig. 4 is the structure chart of another embodiment of the battery control system among expression the present invention.
Fig. 5 is the figure of each interior current potential of the battery control device in the presentation graphs 4.
Fig. 6 is the structure chart of another embodiment of the battery control system among expression the present invention.
Fig. 7 is the figure of each interior current potential of the battery control device in the presentation graphs 6.
Fig. 8 is the structure chart of another embodiment of the battery control system among expression the present invention.
Fig. 9 is the figure of each interior current potential of the battery control device in the presentation graphs 8.
Figure 10 is the structure chart of battery system of battery control system of 2 Fig. 1 of being connected in parallel.
Figure 11 is with the be connected in parallel structure chart of battery system of battery control system of 2 Figure 10 of other method.
Figure 12 is connected structure chart between battery control device in the battery control system among Figure 10 by other method.
Symbol description
1 battery control device, 2 battery pack
3 power lines, 4 host control devices
10 power circuit 20MPU
21 monocells, 30 telecommunication circuits
40 photoelectrical couplers, 50 order wires
100 relays, 110 intermediate potentials produce circuit
Embodiment
Below, use accompanying drawing, illustrate to be used to implement best mode of the present invention.
Use Fig. 1～Figure 12, the embodiment of relevant battery control system of the present invention is described.
Fig. 1 is the structure chart of an embodiment of expression battery control system of the present invention.
In addition, battery control device 1 is connected with battery pack 2 by power line 3, and battery control device 1 is handled required electric power and provided by battery pack 2.
In addition, because will be connected to 2 battery control devices 1, the 1-a of 2 adjacent battery pack 2 of current potential, 2-a connects with order wire 50, and make their insulation,, can be suppressed at the potential difference of battery pack 2 so the potential difference between 2 battery control devices 1,1-a has nothing to do with serial number.In other words, owing in battery control device 1, have voltage withstand voltage of battery pack 2,, construct battery control system so can not rely on the serial number of battery pack 2.In addition, in Fig. 1,, also can be connected with battery control device 1 by will the be connected in series unit of a plurality of battery pack 2 of power line 3 though relative 1 battery pack 2 connects battery control devices 1.
Below, the structure of battery control device 1 is described.
On the other hand, respectively, MPU20 is connected with the photoelectrical coupler 41 of telecommunication circuit 31 by insulation usefulness, and MPU20 is connected with the photoelectrical coupler 42 of telecommunication circuit 32 by insulation usefulness.
The input time series of the power supply in this battery control system 1000 (sequence), when relay 100-a was connected, power circuit 10-a will start, and provided power supply to MPU20-a and telecommunication circuit 32-a and telecommunication circuit 31.When by photoelectrical coupler 42-a telecommunication circuit 32-a being sent power connection (on) instruction of upper battery control device 1 by the MPU20-a that starts, telecommunication circuit 32-a will flow to holding wire 135-a because of fixing electric current makes relay 100 connect, and the power circuit 10 of battery control device 1 is started.So, from the next to the upper power connection that sequentially makes.
In addition, power supply disconnects the sequential of (OFF), when when control device 4 sends the power supply open command, will pass to all battery control devices 1 by order wire 50, with the MPU20 execution end process of all battery control devices 1.The battery control device 1 of upper in case finish end process, just transmits the meaning that end process is finished by order wire 50 to the next battery control device 1.Receive this, the next battery control device 1 disconnects the battery control device 1 interior relay 100 of upper by holding wire 135.After this, receive that the end process of MPU20 is finished, and the meaning that end process is finished is delivered to the next battery control device 1.
So, carry out power supply by the upper order and disconnect, last, in a single day control device 4 is received end process from the most the next battery control device 1-a and is finished, and just by holding wire 135 relay 100-a is disconnected, and makes all battery control devices 1 disconnect (off).
In addition, promptly make when unusual the generation etc. under the situation that all battery control devices 1 disconnect, control device 4 interdicts the electric current of the holding wire that carries out on 135 of the relay 100-a in the most the next battery control device 1-a, and relay 100 is disconnected.Thus, because the power circuit 10 of battery control device 1 stops,, interdict the electric current of upper battery control device 1-b to the holding wire 135 of relay 100-b so telecommunication circuit 32 also stops.Therefore, relay 100-b becomes disconnection, and the power circuit 10-b of battery control device 1-b stops.So, flow through the electric current of the holding wire 135 of control relay 100, just can make than its upper battery control device 1 all to disconnect by blocking.
4 current potentials that use that Fig. 2 describes that battery control device 1 had in detail and insulation.Battery control device 1 comprises the power supply potential 150 that power circuit 10 is had, the microcomputer current potential 151 that MPU20 had, the communication L current potential 152 that telecommunication circuit 31 is had, the communication H current potential 153 that telecommunication circuit 32 is had.Power supply potential 150 is the current potential of the negative side terminal 24 of battery pack 2, and microcomputer current potential 151 is by the wiring 130 that produces circuit 110 from intermediate potential, wiring 133 decisions, is the intermediate potential of the output voltage of battery pack 2.
On the other hand, communication L current potential 152 is by wiring 134 decisions from the negative side terminal 24 of battery pack 2, equates with the current potential of the negative side terminal 24 of battery pack 2.Communication H current potential 153 equates with the communication L current potential 152-b (being the current potential of the negative side terminal 24-b of battery pack 2-b) of upper battery control device 1-b.That is, the H current potential of communicating by letter of communication L current potential 152 and the next battery control device 1-a becomes idiostatic, and the L current potential 152-b that communicates by letter of communication H current potential 153 and upper battery control device 1-b becomes idiostatic.
According to above-mentioned, power supply potential 150 and the microcomputer current potential 151 and the H current potential 153 of communicating by letter, by power circuit 10, become the MPU20 of micro electronmechanical position 151 and the insulation of 31 of the telecommunication circuits that is in the L current potential 152 of communicating by letter by photoelectrical coupler 41, carry out the insulation of MPU20 and 32 of the telecommunication circuits that is in the H current potential 153 of communicating by letter by photoelectrical coupler 42.In addition, when utilizing relay 100 to carry out insulation between power supply potential 150 and the communication L current potential 152, can also utilize relay 100 to carry out the power connection/disconnection of power circuit 10.
151 of L current potential 152 and microcomputer current potentials insulate also further with 2 class F insulations of microcomputer current potential 151 with 153 insulation of H current potential of communicating by letter by communicating by letter, compare with 1 class F insulation of microcomputer and telecommunication circuit, can use withstand voltage little photoelectrical coupler, can miniaturization and reduce cost.
The table of each current potential of 150～153 when Fig. 3 is the on/off that gathers with respect to the relay in the structure shown in Figure 2 100.Have, the voltage of establishing the side of the positive electrode terminal 23 of battery pack 2 is V again
H, the voltage of negative side terminal 24 is V
LWhen relay 100 disconnects, owing to power circuit 10 is not connected with the negative side terminal 24 of battery pack 2, so power supply potential 150 becomes the current potential V of side of the positive electrode terminal 23
HIn addition, when relay 100 is connected, owing to power circuit 10 is connected with the negative side terminal 24 of battery pack 2, so power supply potential 150 becomes V
LThat is, the voltage that the two ends of relay 100 are applied is V when relay 100 disconnects
H-V
L, when relay 100 was connected, the two ends of relay 100 all were V
L, therefore, the voltage that is applied to the two ends of relay 100 is zero V (idiostatic).And, because the on signal 135-a of relay 100 is always V by wiring 134
LSo when relay 100 was connected, the cyclical voltage of relay 100 became V entirely
LThat is, when electric current flows to the connection of relay 100, relay 100 is not applied unnecessary load, can help the life-span of relay 100.
In addition, when relay 100 disconnected, the voltage that is applied to the two ends of photoelectrical coupler 42 was zero V (idiostatic), and the voltage that is applied to the two ends of photoelectrical coupler 41 is V
H-V
LWhen relay 100 is connected, be applied to the voltage at photoelectrical coupler 42 two ends and be applied to photoelectrical coupler 41 two ends voltage any one all be (V
H-V
L)/2.That is, when electric current flows through, be applied to the voltage at photoelectrical coupler 42 two ends and be applied to the voltage step-down at the two ends of photoelectrical coupler 41.
As above, has V by use as the difference of the both end voltage of battery pack 2
H-V
LWithstand voltage photoelectrical coupler 42,41, and to carrying out 2 class F insulations between current potential 153 and the current potential 152, just can use little withstand voltage photoelectrical coupler to construct to be connected in series battery control system, realization miniaturization and the low price of a plurality of battery pack 2.
And, as shown in Figure 2, owing to be, so the negative side terminal 24 of communication L current potential 152 and battery pack 2 becomes idiostatic by structure from the wiring 134 decision communication L current potentials 152 of the negative side terminal 24 of battery pack 2.When the connection that utilizes this function to interdict each battery pack is safeguarded, because the negative side terminal 24 of each battery pack 2 is connected to ground, so the current potential of the order wire of each battery control device is always earth potential, when safeguarding, just can not lose the high voltage portion of battery control system, and accident such as will get an electric shock prevents trouble before it happens.
Then, use Fig. 4, Fig. 5 that the situation of be connected in parallel battery pack 2 and 2-a is described.
In be connected in parallel battery pack 2 and 2-a, the negative side terminal 24 of battery pack 2 and 2-a and the current potential of 24-a are idiostatic.Therefore, any one all is V as the communication H current potential 153-a of the communication L current potential 152 of idiostatic battery control device 1 and battery control device 1-a
L(following note is made communication H current potential 153-a).
In Fig. 5,, the situation of the on/off of relay 100 is shown respectively at each current potential of battery control device 1-a.Irrelevant with the on/off of relay 100, the current potential of communication H current potential 153-a is V
LIn the case, when relay 100 is connected, the voltage around the relay also all with V
LIdiostatic.In addition, when relay 100 disconnected, the voltage that is applied to the two ends of photoelectrical coupler 42 was V
H-V
L, the voltage that is applied to the two ends of photoelectrical coupler 41 is V
H-V
LWhen relay 100 was connected, being applied to the voltage at two ends of photoelectrical coupler 42 and the voltage that is applied to the two ends of photoelectrical coupler 41 was (V
H-V
L)/2.
Therefore as can be known, the situation of the battery pack 2 of connecting or be connected in parallel is all identical, and the potential difference that each current potential is 150～153 is all identical, both can be connected in series as the battery control device 1 of the structure of present embodiment, also can use with being connected in parallel.
Based on more than, by using this battery control device 1,, can realize the cost degradation of high voltage and jumbo battery control system even if also can realize when in parallel a plurality of.
In addition, the current potential of the order wire 50 of connection battery control device 1,1-a and battery pack 2, the negative side terminal 24 of 2-a, 24-a become idiostatic, can reduce the current potential of order wire 50.
Then, in Fig. 6～Fig. 9 as another embodiment of the present invention, illustrate by with the present embodiment diverse ways decide the battery control device 1 of each current potential of 150～153 ' structure.With the difference of above-mentioned present embodiment be the to communicate by letter determining method of the H current potential 153 and the L current potential 152 of communicating by letter.
Fig. 6 be series connected battery group 2 and battery control device 1 ' the structure of group.
In Fig. 6, communication H current potential 153 becomes the potential level of the side of the positive electrode terminal 23 of battery pack 2 by wiring 136 decisions from the side of the positive electrode terminal 23 of battery pack 2.On the other hand, communication L current potential 152 becomes the communication H current potential 153-a (that is the potential level of the side of the positive electrode terminal 23-a of battery pack 2-a) of the next battery control device 1-a.Have, the H current potential of communicating by letter of communication L current potential 152 and the next battery control device 1-a is idiostatic again.The L current potential of communicating by letter of communication H current potential 153 and upper battery control device 1-a is idiostatic.
Identical with the situation of Fig. 1, power supply potential 150 and the microcomputer current potential 151 and the H current potential 153 of communicating by letter, by power circuit 10, become the MPU20 of micro electronmechanical position 151 and be in insulation between the telecommunication circuit 31 of communication L current potential 152 by photoelectrical coupler 41, carry out MPU20 and be in insulation between the telecommunication circuit 32 of communication H current potential 153 by photoelectrical coupler 42.In addition, when utilizing relay 100 to carry out insulation between power supply potential 150 and the communication L current potential 152, can also utilize relay 100 to carry out the power connection/disconnection of power circuit 10.
As shown in Figure 6, owing to be by structure, so communication H current potential 153 is idiostatic with the side of the positive electrode terminal 23 of battery pack 2 from the wiring 136 decision communication H current potentials 153 of the side of the positive electrode terminal 23 of battery pack 2.That is, when safeguarding, the current potential of order wire of each battery control device that interdicts the connection of each battery pack can become the current potential of the current potential of the battery pack that risen usually from earth potential.
Each current potential when in Fig. 7, having gathered relay 100 on/off, 150～153 in the described structure of Fig. 6.Have, the voltage of establishing the side of the positive electrode terminal 23 of battery pack 2 is V again
H, the voltage of negative side terminal 24 is V
LWhen relay 100 disconnects, owing to power circuit 10 is not connected with the negative side terminal 24 of battery pack 2, so power supply potential 150 becomes the current potential V of side of the positive electrode terminal 23
HIn addition, when relay 100 is connected, owing to power circuit 10 is connected with the negative side terminal 24 of battery pack 2, so power supply potential 150 becomes V
LThat is, the voltage that the two ends of relay 100 are applied is V when relay 100 disconnects
H-V
L, when relay 100 was connected, the two ends of relay 100 all were V
L, the voltage that is applied to the two ends of relay 100 is zero V (idiostatic).And, because the on signal 135-a of relay 100 is always V
LSo when relay 100 was connected, the cyclical voltage of relay 100 became V entirely
L, when flowing to the connection of relay 100, electric current do not apply unnecessary load, can help the life-span of relay 100.
Then, in Fig. 8, the embodiment that uses battery control device 1 ' battery pack that is connected in parallel 2,2-a is shown as another embodiment.
Each current potential when in Fig. 9, having gathered relay 100 on/off, 150～153 in the described structure of Fig. 8.Irrelevant with the on/off of relay 100, communication L current potential 152 becomes V
HThis be because, become with the L current potential 152 idiostatic battery control devices 1 of communicating by letter '-the current potential 153-a of a, become the current potential of the side of the positive electrode terminal 23-a of battery pack 2-a by 136-a.In the case, when relay 100 is connected, though the current potential at the two ends of relay 100 is V
L, but the current potential of the on signal 135-a of relay 100 becomes V
HTherefore, when relay 100 is connected, apply V
H-V
LLoad.In addition, be applied to the voltage at the two ends of photoelectrical coupler 41,42, when relay 100 disconnected, photoelectrical coupler 42 was 0V, and photoelectrical coupler 41 is V
H-V
LWhen relay 100 was connected, photoelectrical coupler 42,41 all was (V
H-V
L)/2.Therefore, under the situation of Fig. 6, can be with the withstand voltage (V that is reduced to of photoelectrical coupler 42 always
H-V
L)/2.
Based on more than, by use this battery control device 1 shown in Fig. 6 or Fig. 8 ', even if also can realize when in parallel, can realize the cost degradation of high voltage and jumbo battery control system a plurality of.
On the other hand, since connect battery control device 1 ', 1 '-current potential and battery pack 2, the side of the positive electrode terminal 23 of 2-a, the 23-a of the order wire 50 of a becomes idiostatic, so with the battery control device 1 of Fig. 1 or embodiment shown in Figure 4 relatively, just improved the current potential of order wire 50.
Then, the situation that is connected in parallel and constructs more jumbo battery control system during a plurality of battery control system shown in Figure 10.
The example of the battery system 2000 of the battery control system 1001 of formation use battery control device 1 shown in Figure 10.Battery system 2000 is the structures that connect battery control system 1001 and 1001-a by the controller 5 of upper.In this example, though battery system 2000 is made of 2 battery control systems 1001 and 1001-1, a plurality of battery control systems also are identical structures.
In each battery control system 1001, a plurality of battery pack 2 are connected in series by switch 62, and each battery pack 2 is connected with battery control device 1 respectively by power line 3.
In addition, the side of the positive electrode terminal of the battery pack 2-a of the upper that is connected in series is connected with terminal 81, and the negative side terminal 24 of the most the next battery pack 2-c is connected with terminal 82, and by this terminal 81,82, the electric power that each battery pack 2 keeps discharges and recharges.In addition, battery pack 2-a is connected by switch 62-a with battery pack 2-b, and switch 62-a connects battery pack 2-a and battery pack 2-b or the negative side of battery pack 2-a is connected to the switching on ground 83 by resistance 63-a.In addition, switch 61 carries out the cut-out that is connected with side of the positive electrode terminal with the terminal 81 of battery pack 2-a.And, switch 61,62-a, 62-b, 62-c interlock carrying out work.
On the other hand, battery control device 1 interconnects to be unified into a string mode by order wire 50 each other, and the most the next battery control device 1-c is connected to the upper control device 4 of these battery system 2000 integral body of control by order wire 50-d.In addition, be arranged on the device 6 of the voltage sensor, current sensor etc. of the voltage between terminals of 82,83 of fan, measurement terminal in the battery control system 1001, that comprise cool batteries group 2 and electric current, be connected with host control device 4, host control device 4 is according to coming control device 6 from the data input of various transducers with from the information of battery control device 1.
In addition, host control device 4 interconnects by order wire 51 each other.In Figure 10,, also can singlely connect though host control device 4 adopts multiple-limb (multi-drop) mode to interconnect each other.
In this battery control system 2000, battery control device 1 obtains the state information of each battery pack 2, by order wire 50 these data and host control device 4 is communicated.For example, battery control device 1-a communicates by order wire 50-a, battery control device 1-b, order wire 50-b, 50-c, battery control device 1-c, order wire 50-d and host control device 4.
That is, battery control device 1-b also sends status information data from battery control device 1-a to order wire 50-b except that the status information data of battery pack 2-b.So, the information data of the battery pack 2 of each behavior control device combination and transmission connection and the information Control data of reception.
In addition, cut off switch 61, when switch 62-a, 62-b, 62-c were connected with resistance 63 sides, the negative side terminal of each battery pack 2 all was connected to ground 83.Thus, the communication L current potential of battery control device 1 and the current potential of order wire 50 are all identical with ground 83, cut off mutually with the side of the positive electrode of battery pack 2-a owing to terminal 81 simultaneously, so when battery pack 2, order wire 50 dismountings and exchange, danger such as electric shock can not carried out operation safely.
At this, because in the moment that switch 62-a, 62-b, 62-c are connected with resistance 63 sides, the remaining voltage that the series connection of each battery pack is arranged in circuit, so, there is big current direction ground and the danger of electric shock etc.Therefore,, just can prevent that big electric current from flowing through, the danger of eliminating electric shock etc. by between switch 62-a, 62-b, 62-c and ground 83, resistance 63 being set.
Then, in another method of attachment of battery control system 1001 shown in Figure 11 and Figure 12.Structure when Figure 11 is illustrated in 2 battery control devices that are connected in parallel in the battery control system 1001 etc.First row are made of battery pack 2-a～2-c and the battery control device 1-a～1-c that is connected to this battery pack 2, and second classifies battery pack 2-a-1～2-c-1 and battery control device 1-a-1～1-c-1 as.In addition, host control device 4 is connected to battery control device 1-c and 1-c-1 by order wire 50-d and 50-d-1.Have, the device 6 that contains in the battery control system 1001 is connected to host control device 4 again.
Though be the example of 2 parallel-connection structures in Figure 11, profit also is fine more than using the same method and forming 3 parallel-connection structures.
In addition, in Figure 11, be that each interconnects battery control device 1 example each other by order wire 50 side by side, Figure 12 connects the battery control device 1 that is in same potential, the mode of the battery control device 1 of the current potential group that after this is connected thereto.Though the example of Figure 12 is 2 parallel connections, by same connection, also can be for more than 3 parallel connections.
Identical with Figure 10, even in Figure 11 and Figure 12, if switch 62 is connected with ground 83 sides, the negative side terminal of then all battery pack 2 all can be connected to ground 83.Therefore, it is identical with ground 83 that the current potential of order wire 50 all becomes, and can guarantee that battery pack 2 exchanges wait the fail safe of maintenance activity.
The above embodiments can be applicable to the field of using jumbo electrical storage device.If particularly requiring big capacity and miniaturization, use in the railway field that needs to safeguard, then think and play big effect in meeting.
Claims (11)
1. battery control system, this battery control system comprises a plurality of battery control devices, wherein, above-mentioned battery control device and the battery pack of a plurality of monocells that are connected in series are connected and monitor the state of above-mentioned battery pack,
In the battery control system that monitors the storage battery that has connected a plurality of above-mentioned battery pack,
Above-mentioned battery control device comprises:
Control section;
First telecommunication circuit that communicates with the battery control device that is connected in a side;
The second communication circuit that communicates with the battery control device that is connected at opposite side;
Accept electric power from above-mentioned battery pack and supply with, produce the power circuit of the electric power that electric power that the control circuit of above-mentioned battery control device uses and second communication circuit use;
Make first insulating mechanism of above-mentioned control section and above-mentioned first telecommunication circuit insulation; And
Make second insulating mechanism of above-mentioned control section and above-mentioned second communication circuit insulation,
This battery control system makes first telecommunication circuit in the above-mentioned battery control device be connected with second communication circuit in the battery control device that is connected in an above-mentioned side.
2. battery control system according to claim 1 is characterized in that,
The electric insulation that above-mentioned power circuit is used electric power that the control circuit of generation uses and second communication circuit.
3. battery control system according to claim 1 is characterized in that,
Above-mentioned battery control device comprises the relay circuit of the on/off of the power supply of controlling above-mentioned power circuit,
The above-mentioned relay circuit of above-mentioned battery control device by with adjacent battery control device that above-mentioned first telecommunication circuit is connected in the second communication circuit carry out on.
4. battery control system according to claim 3 is characterized in that,
First telecommunication circuit in the battery control device of the limit of above-mentioned battery control system end configuration is connected to host control device,
Above-mentioned relay circuit carries out power connection from above-mentioned host control device side order.
5. battery control system according to claim 1 is characterized in that,
The power supply of above-mentioned first telecommunication circuit is provided by the power circuit of the adjacent above-mentioned battery control device that is connected with above-mentioned first telecommunication circuit.
6. battery control system according to claim 5 is characterized in that,
By wiring above-mentioned first telecommunication circuit and the negative terminal that is connected to the above-mentioned battery pack on this battery control device are electrically connected, the current potential of above-mentioned first telecommunication circuit is idiostatic with the current potential that is connected to the negative terminal of the above-mentioned battery pack on this battery control device.
7. battery control system according to claim 2 is characterized in that,
Being connected to the positive terminal of the above-mentioned battery pack on the battery control device and the intermediate potential of negative terminal is the current potential of above-mentioned control circuit.
8. battery control system according to claim 1 is characterized in that,
Have switch, become earthing potential by switching above-mentioned switch, make the current potential that is connected the above-mentioned order wire between the adjacent above-mentioned battery control device with the negative side terminal ground connection of above-mentioned each battery pack.
9. battery system comprises:
The storage battery that has connected the battery pack of a plurality of a plurality of monocells that have been connected in series; With
Be connected respectively to above-mentioned battery pack and monitor a plurality of battery control devices of the state of above-mentioned battery pack,
Wherein, above-mentioned battery system is possessing host control device by order wire with the end that the beads shape connects the battery control device group of a plurality of above-mentioned battery control devices,
Above-mentioned battery control device comprises:
Control section;
First telecommunication circuit that communicates with the battery control device of the host control device side that is connected with the beads shape;
The second communication circuit that communicates with the battery control device of the opposite side that is connected with the beads shape;
Accept electric power from above-mentioned battery pack and supply with, the power circuit that provides electric power to the control circuit and the second communication circuit of above-mentioned battery control device;
Make first insulating mechanism of above-mentioned control section and above-mentioned first telecommunication circuit insulation;
Make second insulating mechanism of above-mentioned control section and above-mentioned second communication circuit insulation; And
Above-mentioned first telecommunication circuit and the negative terminal that is connected to the above-mentioned battery pack of this battery control device are electrically connected, make the current potential of above-mentioned first telecommunication circuit and the current potential that is connected to the negative terminal of the above-mentioned battery pack on this battery control device become idiostatic wiring.
10. battery system comprises:
Further the be connected in parallel storage battery of a plurality of series connection units, wherein, above-mentioned Series Sheet bit serial has connected the battery pack of a plurality of a plurality of monocells that have been connected in series; With
Be connected respectively to above-mentioned battery pack, and monitor a plurality of battery control devices of above-mentioned battery pack,
Wherein, this battery system comprises:
By each above-mentioned series connection unit by being unified into a plurality of above-mentioned battery control device that a string mode connects in the mode that can communicate by letter; With
Be communicative connection to and be positioned at the host control device that this is unified into the above-mentioned battery control device of an a string end,
Above-mentioned battery control device comprises:
Control section;
First telecommunication circuit that communicates by the above-mentioned battery control device that is unified into the near side of adjacent above-mentioned host control device that a string mode is connected with distance;
The second communication circuit that communicates by the above-mentioned battery control device that is unified into adjacent above-mentioned host control device that a string mode an is connected side far away with distance; And
Acceptance is from the supply of the electric power of above-mentioned battery pack, produces the power circuit of the power supply of the control circuit that drives above-mentioned battery control device and second communication circuit,
Above-mentioned first telecommunication circuit is connected with the above-mentioned second communication circuit of adjacent above-mentioned battery control device and constitutes a string mode that is unified into.
11. a battery system comprises:
Further the be connected in parallel storage battery of a plurality of series connection units, wherein, above-mentioned Series Sheet bit serial has connected the battery pack of a plurality of a plurality of monocells that have been connected in series; With
Be connected respectively to above-mentioned battery pack, and monitor a plurality of battery control devices of above-mentioned battery pack,
Wherein, this battery system comprises:
By being unified into a plurality of above-mentioned battery control device that a string mode connects in the mode that can communicate by letter; With
Be communicative connection to and be positioned at the host control device that this is unified into the above-mentioned battery control device of an a string end,
Above-mentioned battery control device comprises:
Control section;
First telecommunication circuit that communicates by the above-mentioned battery control device that is unified into the near side of adjacent above-mentioned host control device that a string mode is connected with distance;
The second communication circuit that communicates by the above-mentioned battery control device that is unified into adjacent above-mentioned host control device that a string mode an is connected side far away with distance; And
Acceptance is from the supply of the electric power of above-mentioned battery pack, produces the power circuit of the power supply of the control circuit that drives above-mentioned battery control device and second communication circuit,
Above-mentioned first telecommunication circuit is connected with the above-mentioned second communication circuit of adjacent above-mentioned battery control device and constitutes a string mode that is unified into.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009014873A JP5028436B2 (en) | 2009-01-27 | 2009-01-27 | Battery controller potential fixing method |
| JP2009-014873 | 2009-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101789530A true CN101789530A (en) | 2010-07-28 |
| CN101789530B CN101789530B (en) | 2013-07-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101050137A Expired - Fee Related CN101789530B (en) | 2009-01-27 | 2010-01-27 | Method for fixing potential of battery controller |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5028436B2 (en) |
| CN (1) | CN101789530B (en) |
| GB (1) | GB2467231B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358926A (en) * | 2012-03-30 | 2013-10-23 | 拉碧斯半导体株式会社 | Battery monitoring system and semiconductor device |
| CN105811494A (en) * | 2015-01-20 | 2016-07-27 | 株式会社东芝 | Railroad storage battery device |
| CN106494418A (en) * | 2016-12-07 | 2017-03-15 | 中车株洲电力机车有限公司 | A kind of low-voltage control circuit of train aid system and train |
| CN109786640A (en) * | 2019-03-12 | 2019-05-21 | 江西清华泰豪三波电机有限公司 | Ups power battery fast wiring mechanism |
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| JP5638311B2 (en) * | 2010-08-18 | 2014-12-10 | ラピスセミコンダクタ株式会社 | Battery pack system, voltage monitoring system, voltage monitoring device, and semiconductor device |
| JP5510228B2 (en) * | 2010-09-15 | 2014-06-04 | ミツミ電機株式会社 | Protection circuit |
| FR2972304A1 (en) * | 2011-03-02 | 2012-09-07 | Commissariat Energie Atomique | BATTERY WITH INDIVIDUAL MANAGEMENT OF CELLS |
| WO2012164761A1 (en) * | 2011-05-31 | 2012-12-06 | 日立ビークルエナジー株式会社 | Battery system monitoring device |
| JP5742524B2 (en) | 2011-07-08 | 2015-07-01 | ソニー株式会社 | Control device, power storage system, electronic device, electric vehicle, and power system |
| JP6168803B2 (en) | 2012-03-30 | 2017-07-26 | ラピスセミコンダクタ株式会社 | Battery monitoring system and semiconductor device |
| JP5931567B2 (en) * | 2012-04-26 | 2016-06-08 | 株式会社東芝 | Battery module |
| JP5903645B2 (en) * | 2013-03-25 | 2016-04-13 | パナソニックＩｐマネジメント株式会社 | Battery management system |
| KR102249887B1 (en) * | 2016-12-22 | 2021-05-07 | 삼성에스디아이 주식회사 | Voltage detecting ic and battery management system including the same |
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| JP3930171B2 (en) * | 1998-12-03 | 2007-06-13 | 株式会社日本自動車部品総合研究所 | Battery monitoring device |
| JP3581825B2 (en) * | 2000-09-28 | 2004-10-27 | 日立ホーム・アンド・ライフ・ソリューション株式会社 | Power storage device |
| JP2005110439A (en) * | 2003-09-30 | 2005-04-21 | Nippon Chemicon Corp | Electric double layer capacitor device |
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| EP1806592A1 (en) * | 2005-12-29 | 2007-07-11 | AMI Semiconductor Belgium BVBA | Method and system for monitoring battery stacks |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103358926A (en) * | 2012-03-30 | 2013-10-23 | 拉碧斯半导体株式会社 | Battery monitoring system and semiconductor device |
| CN103358926B (en) * | 2012-03-30 | 2016-12-28 | 拉碧斯半导体株式会社 | Battery monitoring system and semiconductor device |
| CN105811494A (en) * | 2015-01-20 | 2016-07-27 | 株式会社东芝 | Railroad storage battery device |
| CN106494418A (en) * | 2016-12-07 | 2017-03-15 | 中车株洲电力机车有限公司 | A kind of low-voltage control circuit of train aid system and train |
| CN106494418B (en) * | 2016-12-07 | 2018-08-03 | 中车株洲电力机车有限公司 | A kind of low-voltage control circuit and train of train auxiliary system |
| CN109786640A (en) * | 2019-03-12 | 2019-05-21 | 江西清华泰豪三波电机有限公司 | Ups power battery fast wiring mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201001067D0 (en) | 2010-03-10 |
| CN101789530B (en) | 2013-07-03 |
| JP5028436B2 (en) | 2012-09-19 |
| GB2467231A (en) | 2010-07-28 |
| GB2467231B (en) | 2011-05-04 |
| JP2010178400A (en) | 2010-08-12 |
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