CN111114380A - Master-slave role switching control strategy for battery management system - Google Patents
Master-slave role switching control strategy for battery management system Download PDFInfo
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- CN111114380A CN111114380A CN202010070545.5A CN202010070545A CN111114380A CN 111114380 A CN111114380 A CN 111114380A CN 202010070545 A CN202010070545 A CN 202010070545A CN 111114380 A CN111114380 A CN 111114380A
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- 238000011217 control strategy Methods 0.000 title claims abstract description 22
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 80
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 80
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- 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
- 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
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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
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
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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
-
- 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
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a master-slave role switching control strategy for a battery management system, belonging to the technical field of battery management, which comprises the following steps: the method comprises the following steps: connecting the two groups of battery packs in a parallel connection mode, switching the two groups of battery packs into a CAN communication network, and setting master-slave identity selection switches of the two groups of battery packs; step two: after the battery management system is started up, power-on self-test is carried out, and a master-slave identity selection switch of the battery management system is detected; step three: each lithium battery pack analyzes a master-slave identity selection switch of another lithium battery pack on the CAN communication network and a self-checking ending mark according to the received special message; step four: each lithium battery pack analyzes a master-slave identity selection switch of another lithium battery pack on the CAN communication network and a self-checking ending mark according to the received special message, and by the battery management strategy, the safety of battery management CAN be improved, and the self-checking of battery management control is convenient to carry out.
Description
Technical Field
The invention relates to the technical field of battery management, in particular to a master-slave role switching control strategy for a battery management system.
Background
In order to improve the endurance mileage and instantaneous acceleration capability of electric vehicles, more and more entire vehicle manufacturers choose to adopt a scheme of connecting two lithium battery packs in parallel. Compared with the mode that the capacity and the output power of the battery pack are improved by simply increasing the number of the single electric cores in the battery pack, the scheme for connecting the two lithium battery packs in parallel is higher in flexibility and convenient to disassemble, but the control strategy of the battery management system is relatively complex, and particularly the control strategy for switching the master role and the slave role of the battery management system of the two lithium battery packs is relatively complex. At present, most manufacturers manage two groups of lithium battery packs by using one central control module through a distributed system, a battery management system of each group of lithium battery pack reports data of the battery management system to the central control module, and the central control module makes a decision. In addition, some manufacturers select to add a group of master-slave identity selection switches on the lithium battery packs, and the battery management system determines the host or the slave according to the identity selection switches.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the conventional battery management system.
Therefore, an object of the present invention is to provide a master-slave role switching control strategy for a battery management system, which can improve the safety of battery management and facilitate battery management control self-checking.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
a master-slave role switching control strategy for a battery management system comprises the following steps:
the method comprises the following steps: connecting the two groups of battery packs in a parallel connection mode, switching the two groups of battery packs into a CAN communication network, and setting master-slave identity selection switches of the two groups of battery packs;
step two: after the battery management system is started up, power-on self-test is carried out, and a master-slave identity selection switch of the battery management system is detected;
step three: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, and if the self-checking ending mark of the other lithium battery pack is a non self-checking ending mark, the fourth step is carried out;
step four: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, and if the self-checking ending mark of the other lithium battery pack is a non self-checking ending mark, the step five is carried out;
step five: if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the master-slave identity selection switch, counting the received special messages, if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the slave-slave identity selection switch of the other lithium battery pack in 10 continuous frames of special messages, judging that the slave lithium battery pack is the slave lithium battery pack, stopping sending the special messages, and finishing the power-on self-check, otherwise, entering the step 5, wherein the lithium battery packs of different master-slave identity selection switches receive the 10 frames of messages firstly due to the fact that the time for sending the special messages is inconsistent, and the slave lithium battery pack does not send the special messages any more at the moment, so that the master lithium battery pack does not accumulate the 10;
step six: and waiting for 1.5 seconds, if detecting that the special messages received by the host computer are not accumulated to 10 frames, judging the host computer lithium battery pack, and finishing the power-on self-test.
As a preferred scheme of the master-slave role switching control strategy for the battery management system, the present invention provides: the main situations of the power-on self-test in the second step are as follows:
the first situation is as follows: if the host identity switch is used, a special message is immediately broadcast to the outside by a CAN communication network in a period of 100 milliseconds, and the message contains information of a master identity selection switch and a self-checking ending mark;
case two: if the self master-slave identity selection switch is detected to be a slave identity switch, a special message is broadcasted to the outside in a period of 100 milliseconds after waiting for 300 milliseconds, meanwhile, the message also comprises self master-slave identity selection switch information and a self-checking ending mark, and meanwhile, the power-on self-checking time is timed.
As a preferred scheme of the master-slave role switching control strategy for the battery management system, the present invention provides: the detection situation in step three is as follows:
and if the self-checking ending mark of the other lithium battery pack is detected to be the self-checking ending mark, immediately judging that the self-checking ending mark is the slave lithium battery pack, and finishing the self-checking whether the self master-slave identity selection switch is the master or the slave.
As a preferred scheme of the master-slave role switching control strategy for the battery management system, the present invention provides: the detection situation in step four is as follows:
and if the self-checking ending mark of the other lithium battery pack is detected to be the self-checking ending mark, immediately judging that the self-checking ending mark is the slave lithium battery pack, and finishing the self-checking whether the self master-slave identity selection switch is the master or the slave.
Compared with the prior art: 1. through the master-slave role switching control strategy of the battery management systems of the two groups of parallel lithium battery packs, the master lithium battery pack controls the charging and discharging states of the slave lithium battery pack, an additional central control system is not needed, the hardware cost is reduced, and the flexibility is greatly improved.
2. The master-slave role switching control is carried out through the master-slave identity selection switch and the CAN communication network combination, even if the identity selection switches of the two groups of battery packs are consistent or no lithium battery pack in the two groups of lithium battery packs is taken as a host, the master-slave role switching control strategy CAN also reasonably distribute the identity information of each lithium battery pack, and the safety and the flexibility of the whole system are improved.
3. The master-slave role switching control strategy of the battery management systems of the two groups of parallel lithium battery packs can automatically identify the current battery pack running state, so that single-group running of the battery packs can be realized, the parallel running of the two groups of battery packs is supported, the universality of the battery packs is improved, and the weight of a single battery pack is reduced.
4. When one group of lithium battery packs are in the operation process, if other lithium battery packs with the same master-slave identity switch are connected into the system, the master-slave role switching control strategy of the battery management systems of the two groups of lithium battery packs connected in parallel can be used for forcing the battery management system of the connected lithium battery pack to be a slave machine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:
fig. 1 is a schematic diagram of a battery pack connection structure of a master-slave role switching control strategy for a battery management system according to the present invention;
fig. 2 is a schematic software flow diagram of a master-slave role switching control strategy for a battery management system according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and it will be apparent to those of ordinary skill in the art that the present invention may be practiced without departing from the spirit and scope of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The invention provides a master-slave role switching control strategy for a battery management system, please refer to fig. 1-2, which comprises the following steps:
the method comprises the following steps: connecting the two groups of battery packs in a parallel connection mode, switching the two groups of battery packs into a CAN communication network, and setting master-slave identity selection switches of the two groups of battery packs;
step two: the battery management system is powered on and then carries out power-on self-test, firstly, a master-slave identity selection switch of the battery management system is detected, if the master-slave identity selection switch is a master identity switch, a special message is immediately broadcasted to the outside through a CAN communication network in a period of 100 milliseconds, the message comprises information of the master-slave identity selection switch and a self-test ending mark, if the master-slave identity selection switch of the battery management system is detected to be the slave identity switch, the special message is broadcasted to the outside in a period of 100 milliseconds after waiting for 300 milliseconds, and meanwhile, the message also comprises the information of the master-slave identity selection switch of the battery management system and the self. Simultaneously timing the power-on self-test time;
step three: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, if the self-checking ending mark of another lithium battery pack is detected to be a self-checking ending mark, the lithium battery pack is immediately judged to be a slave lithium battery pack, and self-checking is ended, no matter whether the master-slave identity selection switch is a master machine or a slave machine, if the self-checking ending mark of another lithium battery pack is a non self-checking ending mark, the fourth step is carried out;
step four: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, if the self-checking ending mark of another lithium battery pack is detected to be a self-checking ending mark, the lithium battery pack is immediately judged to be a slave lithium battery pack, and self-checking is ended, no matter whether the master-slave identity selection switch is a master machine or a slave machine, if the self-checking ending mark of another lithium battery pack is a non self-checking ending mark, the step five is carried out;
step five: if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the master-slave identity selection switch, counting the received special messages, if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the slave-slave identity selection switch of the other lithium battery pack in 10 continuous frames of special messages, judging that the slave lithium battery pack is the slave lithium battery pack, stopping sending the special messages, and finishing the power-on self-check, otherwise, entering the step 5, wherein the lithium battery packs of different master-slave identity selection switches receive the 10 frames of messages firstly due to the fact that the time for sending the special messages is inconsistent, and the slave lithium battery pack does not send the special messages any more at the moment, so that the master lithium battery pack does not accumulate the 10;
step six: and waiting for 1.5 seconds, if detecting that the special messages received by the host computer are not accumulated to 10 frames, judging the host computer lithium battery pack, and finishing the power-on self-test.
While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the various features of the disclosed embodiments of the invention may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (4)
1. A master-slave role switching control strategy for a battery management system is characterized in that: the method comprises the following steps:
the method comprises the following steps: connecting the two groups of battery packs in a parallel connection mode, switching the two groups of battery packs into a CAN communication network, and setting master-slave identity selection switches of the two groups of battery packs;
step two: after the battery management system is started up, power-on self-test is carried out, and a master-slave identity selection switch of the battery management system is detected;
step three: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, and if the self-checking ending mark of the other lithium battery pack is a non self-checking ending mark, the fourth step is carried out;
step four: each lithium battery pack analyzes a master-slave identity selection switch and a self-checking ending mark of another lithium battery pack on the CAN communication network according to the received special message, and if the self-checking ending mark of the other lithium battery pack is a non self-checking ending mark, the step five is carried out;
step five: if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the master-slave identity selection switch, counting the received special messages, if the master-slave identity selection switch of the other lithium battery pack is detected to be inconsistent with the slave-slave identity selection switch of the other lithium battery pack in 10 continuous frames of special messages, judging that the slave lithium battery pack is the slave lithium battery pack, stopping sending the special messages, and finishing the power-on self-check, otherwise, entering the step 5, wherein the lithium battery packs of different master-slave identity selection switches receive the 10 frames of messages firstly due to the fact that the time for sending the special messages is inconsistent, and the slave lithium battery pack does not send the special messages any more at the moment, so that the master lithium battery pack does not accumulate the 10;
step six: and waiting for 1.5 seconds, if detecting that the special messages received by the host computer are not accumulated to 10 frames, judging the host computer lithium battery pack, and finishing the power-on self-test.
2. The master-slave role switching control strategy for the battery management system according to claim 1, wherein: the main situations of the power-on self-test in the second step are as follows:
the first situation is as follows: if the host identity switch is used, a special message is immediately broadcast to the outside by a CAN communication network in a period of 100 milliseconds, and the message contains information of a master identity selection switch and a self-checking ending mark;
case two: if the self master-slave identity selection switch is detected to be a slave identity switch, a special message is broadcasted to the outside in a period of 100 milliseconds after waiting for 300 milliseconds, meanwhile, the message also comprises self master-slave identity selection switch information and a self-checking ending mark, and meanwhile, the power-on self-checking time is timed.
3. The master-slave role switching control strategy for the battery management system according to claim 1, wherein: the detection situation in step three is as follows:
and if the self-checking ending mark of the other lithium battery pack is detected to be the self-checking ending mark, immediately judging that the self-checking ending mark is the slave lithium battery pack, and finishing the self-checking whether the self master-slave identity selection switch is the master or the slave.
4. The master-slave role switching control strategy for the battery management system according to claim 1, wherein: the detection situation in step four is as follows:
and if the self-checking ending mark of the other lithium battery pack is detected to be the self-checking ending mark, immediately judging that the self-checking ending mark is the slave lithium battery pack, and finishing the self-checking whether the self master-slave identity selection switch is the master or the slave.
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| CN111157922A (en) * | 2020-01-21 | 2020-05-15 | 无锡至极动能科技有限公司 | Method and system for detecting loosening of power line when multiple groups of lithium battery packs are used in parallel |
| US11095140B1 (en) | 2020-06-02 | 2021-08-17 | Inventus Power, Inc. | Large-format battery managment system |
| US11245268B1 (en) | 2020-07-24 | 2022-02-08 | Inventus Power, Inc. | Mode-based disabling of communiction bus of a battery management system |
| US11404885B1 (en) | 2021-02-24 | 2022-08-02 | Inventus Power, Inc. | Large-format battery management systems with gateway PCBA |
| US11411407B1 (en) | 2021-02-24 | 2022-08-09 | Inventus Power, Inc. | Large-format battery management systems with gateway PCBA |
| US11476677B2 (en) | 2020-06-02 | 2022-10-18 | Inventus Power, Inc. | Battery pack charge cell balancing |
| US11489343B2 (en) | 2020-06-02 | 2022-11-01 | Inventus Power, Inc. | Hardware short circuit protection in a large battery pack |
| US11509144B2 (en) | 2020-06-02 | 2022-11-22 | Inventus Power, Inc. | Large-format battery management system with in-rush current protection for master-slave battery packs |
| US11552479B2 (en) | 2020-06-02 | 2023-01-10 | Inventus Power, Inc. | Battery charge balancing circuit for series connections |
| US11588334B2 (en) | 2020-06-02 | 2023-02-21 | Inventus Power, Inc. | Broadcast of discharge current based on state-of-health imbalance between battery packs |
| US11594892B2 (en) | 2020-06-02 | 2023-02-28 | Inventus Power, Inc. | Battery pack with series or parallel identification signal |
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