CN107650686A - The dual-protection circuit of balance car battery and its guard method - Google Patents
The dual-protection circuit of balance car battery and its guard method Download PDFInfo
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- CN107650686A CN107650686A CN201711112294.7A CN201711112294A CN107650686A CN 107650686 A CN107650686 A CN 107650686A CN 201711112294 A CN201711112294 A CN 201711112294A CN 107650686 A CN107650686 A CN 107650686A
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- 230000004224 protection Effects 0.000 claims abstract description 104
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- 239000004065 semiconductor Substances 0.000 claims description 61
- 230000009191 jumping Effects 0.000 claims description 15
- 230000009977 dual effect Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
A kind of dual-protection circuit of balance car battery and guard method; wherein circuit includes the first protection module IC and the second protection module MCU; first discharge control switch and the second discharge control switch; first discharge control switch and the second discharge control switch are connected in battery major loop; first protection module IC obtains the real-time electric discharge running parameter of battery; when electric discharge running parameter occurs abnormal in real time, the first protection module IC1 controls the first discharge control switch to disconnect；Second protection module MCU obtains the first protection module IC1 real-time electric discharge running parameter in real time; compared with standard electric discharge running parameter set in advance with the second protection module MCU; when the real-time parameter that discharges exceedes predetermined electric discharge running parameter, the second protection module MCU controls the second discharge control switch.The present invention have charge or discharge can dual independent control major loop the advantages of.
Description
Technical field
The present invention relates to dual-protection circuit and its guard method of a kind of balance car battery.
Background technology
The balance car of all productions, import and sale all has to meet safety standard, and the standard clearly proposes battery mistake
Fill, put excessively, excessively stream, excess temperature need dual separate protection mechanism.All balance car products for not meeting above-mentioned standard exist
There is potential risk on fire in use, it will bring serious personal injury or life-threatening property safety to consumer.
Also pond protection scheme is mostly using pure hardware circuit scheme for the electricity of traditional balance car, both using double protection IC
It is that can not cause effectively in real time the feedback of the information of battery to master control borad in pole to realize, the shortcomings that pure hardware circuit
Individual cells are when there is abnormal situation, it is impossible to effectively play a protective role.In order to improve this situation, it has been proposed that
One secondary protection module IC adds the scheme of main protection module MCU protections, as Chinese patent literature CN103490390 is disclosed
A kind of battery management system and method with double protection functions, it includes AFE(analog front end) IC controlling switches circuit and MCU
Controlling switch circuit, the AFE(analog front end) IC controlling switches circuit the first metal-oxide-semiconductor of corresponding control and MCU controlling switches circuit are corresponding
The second metal-oxide-semiconductor is controlled, and then the first metal-oxide-semiconductor or the second metal-oxide-semiconductor control main discharge circuit further through the 3rd metal-oxide-semiconductor, reach
To the purpose of protection battery.The problem of this battery management system is, once the 3rd metal-oxide-semiconductor fails, not by the first metal-oxide-semiconductor or the
The control of two metal-oxide-semiconductors, then whole control circuit just fails, and does not have any protective effect.It is right in new standard not reach more
Protection requirement in major loop, that is, need dual independent control loop, once the metal-oxide-semiconductor inside the major loop fails, separately
One protection metal-oxide-semiconductor also can individually play a protective role, and veritably realize the purpose of duplicate protection.
The content of the invention
In order to overcome above mentioned problem, the present invention to society provide it is a kind of can be with the balance car of dual independent control major loop
The dual-protection circuit of battery and its guard method.
The present invention a kind of technical scheme be：A kind of dual-protection circuit of balance car battery, including the first protection are provided
Module I C and the second protection module MCU, the first discharge control switch and the second discharge control switch, first control of discharge are opened
Close and the second discharge control switch is connected in battery major loop, the first protection module IC obtains the real-time electric discharge work of battery
Make parameter, when the running parameter of electric discharge in real time occurs abnormal, the first protection module IC1 controls the first control of discharge to open
Shut-off is opened；The second protection module MCU obtains the first protection module IC1 real-time electric discharge running parameter in real time, is protected with second
Shield module MCU standard electric discharge running parameters set in advance are compared, when electric discharge real-time parameter exceedes predetermined electric discharge work
During parameter, the second protection module MCU controls the second discharge control switch.
As improvement of the present invention, the second protection module MCU obtains the first protection module IC real-time work in real time
Make parameter, compared with standard electric discharge running parameter set in advance with the second protection module MCU, when electric discharge real-time parameter exceedes
During predetermined electric discharge running parameter, and when first discharge control switch is in closure, the second protection module MCU controls
Second discharge control switch.
As improvement of the present invention, in addition to the first charging control switch and the second charging control switch, described first
Charging control switch and the second charging control switch are connected in battery major loop, and the first protection module IC obtains battery
Real time charging running parameter, when the real time charging running parameter occurs abnormal, the first protection module IC controls first
Charging control switch disconnects；The second protection module MCU obtains the first protection module IC real time charging running parameter in real time,
Compared with the second protection module MCU standard charging running parameters set in advance, when charging real-time parameter is more than predetermined
During charging running parameter, the second protection module MCU controls the second charging control switch.
As improvement of the present invention, the second protection module MCU obtains filling in real time for the first protection module IC in real time
Electric running parameter, compared with the second protection module MCU standard charging running parameters set in advance, when charging real-time parameter
During more than predetermined charging running parameter, and first charging control switch is in when closing, the second protection module MCU
Control the second charging control switch.
As improvement of the present invention, first discharge control switch and the second discharge control switch are metal-oxide-semiconductors.
As improvement of the present invention, the metal-oxide-semiconductor is N-type metal-oxide-semiconductor or p-type metal-oxide-semiconductor.
As improvement of the present invention, first charging control switch and the second charging control switch are metal-oxide-semiconductors.
As improvement of the present invention, the metal-oxide-semiconductor is N-type metal-oxide-semiconductor or p-type metal-oxide-semiconductor.
As improvement of the present invention, the running parameter of electric discharge in real time includes one kind in voltage, electric current and temperature；Or
Electric discharge running parameter includes the parameter of one or more of voltage, electric current and temperature in real time described in person.
As improvement of the present invention, the real time charging running parameter includes one kind in voltage, electric current and temperature；Or
Real time charging running parameter described in person includes the parameter of one or more of voltage, electric current and temperature.
The present invention also provides a kind of double protection method of balance car battery, including the protections of the first protection module IC and second
Module MCU, the second protection module MCU（2）, metal-oxide-semiconductor is controlled as follows；
S1, on establish the beginning by cable；
S2, the flag bit for setting charge/discharge metal-oxide-semiconductor to be out；
S3, battery status position whether set park mode, if it is, jump to S6 step, if it is not, then enter in next step；
Whether set is short-circuit for S4, battery status position, if it is, S6 steps are jumped to, if it is not, then entering in next step；
S5, battery status position whether set electric discharge excessively stream, if it is, into S6 walk, if it is not, then jump to S7 step；
S6, charge/discharge metal-oxide-semiconductor disconnect；
Whether set overcharges for S7, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is high for S8, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is low for S9, battery status position, if it is, being walked into S10, if not, jumping to the 11st step；
S10, whether set is put for battery status position fills, if it is, into S12 steps are jumped to, if not, jumping to S14 steps；
S11, battery status position whether set charging excessively stream, if it is, jump to S14 step, if not, enter in next step；
S12, charge/discharge metal-oxide-semiconductor closure；
S13, whether set is crossed for battery status position puts, if it is, jump to S16 steps, if not, into the 15th step；
S14, charging disconnect, electric discharge closure；
S15, whether there is button request,
Whether set is charged for S16, battery status position, if it is, S18 steps are jumped to, if not, jumping to the 19th step；
Whether set discharge temp is low for S17, battery status position, if it is, S21 steps are jumped to, if not, jumping to the 20th step；
S18, charge/discharge metal-oxide-semiconductor closure；
S19, charging metal-oxide-semiconductor closure, electric discharge metal-oxide-semiconductor disconnect；
Whether set discharge temp is high for S20, battery status position, if it is, being walked into S21, if not, jumping to the 22nd step；
S22, end.
The present invention have charge or discharge can dual independent control major loop the advantages of.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of the first embodiment of the invention.
Fig. 2 is the schematic flow sheet of MCU of the present invention control method（Upper part）.
Fig. 3 is the schematic flow sheet of MCU of the present invention control method（Map interlinking 2）.
Embodiment
In the description of the invention, it is to be understood that " " center ", " on " in term, " under ", "front", "rear", " left side ",
The orientation or position relationship of instructions such as " right sides " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or component must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for describing purpose,
And it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " installation ", " connects
Connect ", " connected " should be interpreted broadly, for example, it may be being fixedly connected or dismantling connection, or be integrally connected；Can be with
It is mechanical connection or electrical connection；Can be joined directly together or be indirectly connected by intermediary, Ke Yishi
The connection of two component internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
The concrete meaning of invention.
Refer to Fig. 1, what Fig. 1 was disclosed is a kind of dual-protection circuit of balance car battery, including the first protection module IC1
With the second protection module MCU2, the first discharge control switch 3 and the second discharge control switch 4, first discharge control switch 3
It is connected on the second discharge control switch 4 in battery major loop, the first protection module IC1 obtains the real-time electric discharge of battery 7
Running parameter, when the running parameter of electric discharge in real time occurs abnormal, the first protection module IC1 controls the first control of discharge
Switch 3 disconnects；The second protection module MCU2 obtains the first protection module IC1 real-time electric discharge running parameter in real time, with the
Two protection module MCU2 standard electric discharge running parameters set in advance are compared, when electric discharge real-time parameter exceedes predetermined electric discharge
During running parameter, the second protection module MCU2 controls the second discharge control switch 4 to disconnect.Under normal circumstances, it is described real-time
Electric discharge running parameter can be one kind in voltage, electric current and temperature；Or one or more of voltage, electric current and temperature
Parameter, such as two or three.
Preferably, the second protection module MCU2 obtains the first protection module IC1 real-time working parameter in real time, with the
Two protection module MCU2 standard electric discharge running parameters set in advance are compared, when electric discharge real-time parameter exceedes predetermined electric discharge
During running parameter, and first discharge control switch 3 is in when closing, the electric discharge of the second protection module MCU2 controls second
Controlling switch 4.Such case is, when electric discharge running parameter is abnormal, but the first discharge control switch 3 is appointed so in closure,
The second protection module MCU2 controls the second discharge control switch 4 to disconnect.
Preferably, present invention additionally comprises the first charging control switch 5 and the second charging control switch 6, first charging
The charging control switch 6 of controlling switch 5 and second is connected in battery major loop, and the first protection module IC1 obtains battery 7
Real time charging running parameter, when the real time charging running parameter occurs abnormal, the first protection module IC1 controls first
Charging control switch 5 disconnects；The second protection module MCU2 obtains the first protection module IC1 real time charging work ginseng in real time
Number, compared with the second protection module MCU2 standard charging running parameters set in advance, when charging real-time parameter exceedes in advance
During fixed charging running parameter, the second protection module MCU2 controls the second charging control switch 6 to disconnect.
Preferably, the second protection module MCU2 obtains the first protection module IC1 real time charging running parameter in real time,
Compared with the second protection module MCU2 standard charging running parameters set in advance, when charging real-time parameter is more than predetermined
During charging running parameter, and first charging control switch 5 is in when closing, the second protection module MCU2 controls second
Charging control switch 6 disconnects.
Preferably, first discharge control switch 3, the second discharge control switch 4, first charging control switch 5
It is metal-oxide-semiconductor with the second charging control switch 6.The metal-oxide-semiconductor can be N-type metal-oxide-semiconductor or p-type metal-oxide-semiconductor.
Preferably, the real time charging running parameter includes one kind in voltage, electric current and temperature；Or described fill in real time
Electric running parameter includes the parameter of one or more of voltage, electric current and temperature.
The present invention is also designed to a kind of dual-protection circuit of balance car battery, including the first protection module IC1 and
Second protection module MCU2, the first charging control switch 5 and the second charging control switch 6, the He of the first charging control switch 5
Second charging control switch 6 is connected in battery major loop, and the first protection module IC1 obtains the real time charging work of battery 7
Make parameter, when the real time charging running parameter occurs abnormal, the first protection module IC1 controls the first charge control to open
5 are closed to disconnect；The second protection module MCU2 obtains the first protection module IC1 real time charging running parameter in real time, with second
Protection module MCU2 standard charging running parameters set in advance are compared, when charging real-time parameter exceedes predetermined battery charger
When making parameter, the second protection module MCU2 controls the second charging control switch 6 to disconnect.
In this case, it can also increase by the first discharge control switch 3 and the second discharge control switch 4 is connected on battery master
Structure in loop improves this embodiment, concrete structure, and reader is understandable referring to the explanation to such scheme.
Refer to Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 in the present invention are a whole flow process schematic diagram altogether, due to can not be
Fig. 2 and Fig. 3 content are drawn in together in a piece of paper, drawn so being divided into two.The present invention also provides a kind of balance car battery
Double protection method, this method is the protection side proposed based on the dual-protection circuit disclosed in the various embodiments described above
Method, including at least the first protection module IC1 and the second protection module MCU2, the second protection module MCU2, the first electric discharge control
The 3, second discharge control switch 4 of system switch, the first charging control switch 5 and the second charging control switch 6, and side as shown in Figure 1
Formula couples, and the second protection module MCU2 controls metal-oxide-semiconductor as follows；
S1, on establish the beginning by cable；
S2, the flag bit for setting charge/discharge metal-oxide-semiconductor to be out；The metal-oxide-semiconductor of this step discharges including the first discharge control switch 3, second
Controlling switch 4, the first charging control switch 5 and the second charging control switch 6；
S3, battery status position whether set park mode, if it is, jump to S6 step, if it is not, then enter in next step；This
Main check whether of step does not use for a long time, and battery is in park mode；
Whether set is short-circuit for S4, battery status position, if it is, S6 steps are jumped to, if it is not, then entering in next step；This step master
Check whether battery has short circuit phenomenon；
S5, battery status position whether set electric discharge excessively stream, if it is, into S6 walk, if it is not, then jump to S7 step；
S6, charge/discharge metal-oxide-semiconductor disconnect；The metal-oxide-semiconductor of this step includes the first discharge control switch 3, the second discharge control switch 4, the
One charging control switch 5 and the second charging control switch 6；
Whether set overcharges for S7, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is high for S8, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is low for S9, battery status position, if it is, being walked into S10, if not, jumping to the 11st step；
S10, whether set is put for battery status position fills, if it is, into S12 steps are jumped to, if not, jumping to S14 steps；
S11, battery status position whether set charging excessively stream, if it is, jump to S14 step, if not, enter in next step；
S12, charge/discharge metal-oxide-semiconductor closure；The metal-oxide-semiconductor of this step include the first discharge control switch 3, the second discharge control switch 4,
First charging control switch 5 and the second charging control switch 6；
S13, whether set is crossed for battery status position puts, if it is, jump to S16 steps, if not, into the 15th step；
S14, charging metal-oxide-semiconductor disconnect, electric discharge metal-oxide-semiconductor closure；The charging metal-oxide-semiconductor of this step is the first discharge control switch 3 and first
Charging control switch 5, electric discharge metal-oxide-semiconductor is the second discharge control switch 4 and the second charging control switch 6；
S15, whether there is button request, this step is to say whether need pseudoinstruction；
Whether set is charged for S16, battery status position, if it is, S18 steps are jumped to, if not, jumping to the 19th step；
Whether set discharge temp is low for S17, battery status position, if it is, S21 steps are jumped to, if not, jumping to the 20th step；
S18, charge/discharge metal-oxide-semiconductor closure；The metal-oxide-semiconductor of this step include the first discharge control switch 3, the second discharge control switch 4,
First charging control switch 5 and the second charging control switch 6；
S19, charging metal-oxide-semiconductor closure, electric discharge metal-oxide-semiconductor disconnect；The charging metal-oxide-semiconductor of this step is the first discharge control switch 3 and first
Charging control switch 5, electric discharge metal-oxide-semiconductor is the second discharge control switch 4 and the second charging control switch 6；
Whether set discharge temp is high for S20, battery status position, if it is, being walked into S21, if not, jumping to the 22nd step；
S22, end.
In the various embodiments described above, during normal work, first discharge control switch 3, the second discharge control switch 4, institute
State the first charging control switch 5 and the second charging control switch 6 is in closure state.
It should be noted that explaining in detail for the respective embodiments described above, its purpose is only that to be solved to the present invention
Release, in order to be able to preferably explain the present invention, still, these description can not with any explanation into be to the present invention limit
System, particularly, each feature described in various embodiments can also be mutually combined, so as to form other implementations
Mode, except there is clearly opposite description, these features should be understood to be applied in any one embodiment, and simultaneously
It is not only limited to described embodiment.
Claims (10)
1. a kind of dual-protection circuit of balance car battery, including the first protection module IC（1）With the second protection module MCU（2）,
First discharge control switch（3）With the second discharge control switch（4）, it is characterised in that first discharge control switch（3）With
Second discharge control switch（4）It is connected in battery major loop, the first protection module IC（1）Obtain battery（7）It is real-time
Discharge running parameter, when the running parameter of electric discharge in real time occurs abnormal, the first protection module IC（1）Control first is put
Electric control switch（3）Disconnect；The second protection module MCU（2）The first protection module IC is obtained in real time（1）Real-time electric discharge work
Make parameter, with the second protection module MCU（2）Standard electric discharge running parameter set in advance is compared, when electric discharge real-time parameter
During more than predetermined electric discharge running parameter, the second protection module MCU（2）Control the second discharge control switch（4）Disconnect.
2. the dual-protection circuit of balance car battery according to claim 1, it is characterised in that second protection module
MCU（2）The first protection module IC is obtained in real time（1）Real-time working parameter, with the second protection module MCU（2）It is set in advance
Standard electric discharge running parameter is compared, and when the real-time parameter that discharges exceedes predetermined electric discharge running parameter, and described first puts
Electric control switch（3）During in closure, the second protection module MCU（2）Control the second discharge control switch（4）Disconnect.
3. the dual-protection circuit of balance car battery according to claim 1 or 2, it is characterised in that also filled including first
Electric control switch（5）With the second charging control switch（6）, first charging control switch（5）With the second charging control switch
（6）It is connected in battery major loop, the first protection module IC（1）Obtain battery（7）Real time charging running parameter, work as institute
State real time charging running parameter occur it is abnormal when, the first protection module IC（1）Control the first charging control switch（5）It is disconnected
Open；The second protection module MCU（2）The first protection module IC is obtained in real time（1）Real time charging running parameter, with second protect
Protect module MCU（2）Standard charging running parameter set in advance is compared, when charging real-time parameter exceedes predetermined battery charger
When making parameter, the second protection module MCU（2）Control the second charging control switch（6）Disconnect.
4. the dual-protection circuit of balance car battery according to claim 3, it is characterised in that second protection module
MCU（2）The first protection module IC is obtained in real time（1）Real time charging running parameter, with the second protection module MCU（2）Set in advance
Fixed standard charging running parameter is compared, when the real-time parameter that charges exceedes predetermined charging running parameter, and described the
One charging control switch（5）During in closure, the second protection module MCU（2）Control the second charging control switch（6）It is disconnected
Open.
5. the dual-protection circuit of balance car battery according to claim 1 or 2, it is characterised in that first electric discharge
Controlling switch（3）With the second discharge control switch（4）It is metal-oxide-semiconductor.
6. the dual-protection circuit of balance car battery according to claim 5, it is characterised in that the metal-oxide-semiconductor is N-type
Metal-oxide-semiconductor or p-type metal-oxide-semiconductor.
7. the dual-protection circuit of balance car battery according to claim 3, it is characterised in that first charge control
Switch（5）With the second charging control switch（6）It is metal-oxide-semiconductor.
8. the dual-protection circuit of balance car battery according to claim 7, it is characterised in that the metal-oxide-semiconductor is N-type
Metal-oxide-semiconductor or p-type metal-oxide-semiconductor.
9. the dual-protection circuit of balance car battery according to claim 1 or 2, it is characterised in that the electric discharge in real time
Running parameter includes one kind in voltage, electric current and temperature；Or the running parameter of electric discharge in real time includes voltage, electric current and temperature
The parameter of one or more of degree.
A kind of 10. duplicate protection side of dual-protection circuit using described in any one claim in claim 1 to 9
Method, it is characterised in that the second protection module MCU（2）Metal-oxide-semiconductor is controlled as follows；
S1, on establish the beginning by cable；
S2, the flag bit for setting charge/discharge metal-oxide-semiconductor to be out；
S3, battery status position whether set park mode, if it is, jump to S6 step, if it is not, then enter in next step；
Whether set is short-circuit for S4, battery status position, if it is, S6 steps are jumped to, if it is not, then entering in next step；
S5, battery status position whether set electric discharge excessively stream, if it is, into S6 walk, if it is not, then jump to S7 step；
S6, charge/discharge metal-oxide-semiconductor disconnect；
Whether set overcharges for S7, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is high for S8, battery status position, if it is, S10 steps are jumped to, if it is not, then entering in next step；
Whether set charging temperature is low for S9, battery status position, if it is, being walked into S10, if not, jumping to the 11st step；
S10, whether set is put for battery status position fills, if it is, into S12 steps are jumped to, if not, jumping to S14 steps；
S11, battery status position whether set charging excessively stream, if it is, jump to S14 step, if not, enter in next step；
S12, charge/discharge metal-oxide-semiconductor closure；
S13, whether set is crossed for battery status position puts, if it is, jump to S16 steps, if not, into the 15th step；
S14, charging disconnect, electric discharge closure；
S15, whether there is button request,
Whether set is charged for S16, battery status position, if it is, S18 steps are jumped to, if not, jumping to the 19th step；
Whether set discharge temp is low for S17, battery status position, if it is, S21 steps are jumped to, if not, jumping to the 20th step；
S18, charge/discharge metal-oxide-semiconductor closure；
S19, charging metal-oxide-semiconductor closure, electric discharge metal-oxide-semiconductor disconnect；
Whether set discharge temp is high for S20, battery status position, if it is, being walked into S21, if not, jumping to the 22nd step；
S22, end.
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| CN107650686B (en) | 2023-10-27 |
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