CN111114383A - New energy automobile power lithium ion battery management system - Google Patents
New energy automobile power lithium ion battery management system Download PDFInfo
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- CN111114383A CN111114383A CN201911342063.4A CN201911342063A CN111114383A CN 111114383 A CN111114383 A CN 111114383A CN 201911342063 A CN201911342063 A CN 201911342063A CN 111114383 A CN111114383 A CN 111114383A
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- battery
- module
- acquisition module
- temperature
- central processing
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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
- B60L58/12—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]
- B60L58/14—Preventing excessive discharging
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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
- B60L58/12—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]
- B60L58/15—Preventing overcharging
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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
- B60L58/22—Balancing the charge of battery modules
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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
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
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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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a new energy automobile power lithium ion battery management system which comprises a central processing module, a data acquisition module, a safety management module and a battery equalization module, wherein the data acquisition module, the safety management module and the battery equalization module are electrically connected with the central processing module through wires; the data acquisition module includes battery voltage acquisition module, battery current acquisition module and battery temperature acquisition module, and battery voltage acquisition module divide into two parts, and one monitors the total voltage of whole group battery, and another monitors the voltage of every solitary battery, battery current acquisition module also divide into two parts, and one monitors the total current of whole group battery, and another monitors the electric current of every solitary battery. Compared with the traditional new energy automobile battery management system, the battery management system has higher precision by monitoring the single battery, and can find and process the fault of the single battery in time.
Description
Technical Field
The invention belongs to the field of new energy automobile battery management, and particularly relates to a new energy automobile power lithium ion battery management system.
Background
The power source of the new energy automobile is not the traditional fossil energy, and compared with the traditional energy automobile, the new energy automobile has less carbon dioxide emission and has important significance for environmental protection. Meanwhile, the new energy automobile also has the advantages of low noise and stable operation. The battery management system is the most important component of a new energy automobile, particularly a pure electric automobile, ensures the safe and efficient operation of the new energy automobile, realizes the maximum utilization rate of the battery, and prolongs the service life of the battery, so the design of the battery management system is very important for the new energy automobile. The conventional temperature acquisition mode is that a temperature sensor is arranged in a battery box, and the integral temperature of a battery pack is acquired through the temperature sensor, but when a single battery is suddenly increased in temperature due to a fault, the integral height of the outer side of the battery pack cannot be suddenly changed, and when the temperature sensor monitors the temperature change, a single battery can be damaged. Therefore, a new energy automobile power lithium ion battery management system with higher monitoring precision is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a new energy automobile power lithium ion battery management system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a new energy automobile power lithium ion battery management system comprises a central processing module, a data acquisition module, a safety management module and a battery equalization module, wherein the data acquisition module, the safety management module and the battery equalization module are electrically connected with the central processing module through leads;
the data acquisition module comprises a battery voltage acquisition module, a battery current acquisition module and a battery temperature acquisition module, wherein the battery voltage acquisition module is divided into two parts, one part monitors the total voltage of the whole battery pack, the other part monitors the voltage of each single battery, the battery current acquisition module is also divided into two parts, one part monitors the total current of the whole battery pack, the other part monitors the current of each single battery, the battery temperature acquisition modules are divided into two groups, temperature probes of one group of acquisition modules are directly connected to the single batteries, the other group of acquisition modules are respectively arranged at four corners of the battery box, and the other group of acquisition modules can monitor the temperature of the single batteries and the temperature of the whole batteries;
the safety management module comprises cooling fans and a control circuit board, the cooling fans are symmetrically arranged on the front side and the rear side of the battery pack, the cooling fans are powered by the automobile power battery pack, the control circuit board is electrically connected with the central control and the cooling fans through leads, the control circuit board is controlled by the central processing module and can be used for starting and stopping the cooling fans, the battery temperature acquisition module can be used for acquiring the overall temperature of the battery pack in the battery box and also can be used for acquiring the temperature of a single battery, when the temperature of one battery is sharply increased due to faults, the battery temperature acquisition module can generate signals to the central processing module, and after the central processing module receives the signals, the cooling fans can work through the control circuit board, so that the aim of cooling the automobile battery is fulfilled;
the battery balancing module is integrally constructed as a DC/DC converter, the energy of the whole battery pack can be transferred to the battery pack with lower electric quantity, and the energy balance of all battery monomers in the battery pack is realized through the redistribution of the electric quantity;
the central processing module processes and stores the information acquired by the data acquisition module, controls the safety management module and the battery equalization module, has a data transmission function, and can be connected with an upper computer through a port or a wireless network.
Preferably, the central processing module is an STM32 processor.
Preferably, the battery voltage acquisition module acquires data through a battery voltage monitoring chip LTC 6804.
Preferably, the battery current acquisition module acquires data through a hall current sensor.
Preferably, the battery temperature acquisition module monitors the battery temperature through a temperature sensor.
Compared with the prior art, the invention has the beneficial effects that: the invention monitors and protects the automobile battery by arranging the data acquisition module, the safety management module and the battery equalization module, the total voltage and current of the battery pack and the voltage and current of a single battery can be monitored by the data acquisition module, so that the phenomenon of over-discharge or over-charge of the battery pack is prevented, the total temperature of the battery pack and the temperature of the single battery can be respectively monitored by the battery temperature acquisition module, when the temperature of the single battery rises due to faults, the central processing module can timely receive information, and then the heat dissipation treatment can be carried out on the battery pack by the heat dissipation fan, so that the fire disaster caused by overheating of the battery pack is prevented.
Drawings
FIG. 1 is a block diagram of the structural connections of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A new energy automobile power lithium ion battery management system comprises a central processing module, a data acquisition module, a safety management module and a battery equalization module, wherein the data acquisition module, the safety management module and the battery equalization module are electrically connected with the central processing module through leads;
the data acquisition module comprises a battery voltage acquisition module, a battery current acquisition module and a battery temperature acquisition module, wherein the battery voltage acquisition module is divided into two parts, one part monitors the total voltage of the whole battery pack, the other part monitors the voltage of each single battery, the battery current acquisition module is also divided into two parts, one part monitors the total current of the whole battery pack, the other part monitors the current of each single battery, the battery temperature acquisition modules are divided into two groups, temperature probes of one group of acquisition modules are directly connected to the single batteries, the other group of acquisition modules are respectively arranged at four corners of the battery box, and the other group of acquisition modules can monitor the temperature of the single batteries and the temperature of the whole batteries;
the safety management module comprises cooling fans and a control circuit board, the cooling fans are symmetrically arranged on the front side and the rear side of the battery pack, the cooling fans are powered by the automobile power battery pack, the control circuit board is electrically connected with the central control and the cooling fans through leads, the control circuit board is controlled by the central processing module and can be used for starting and stopping the cooling fans, the battery temperature acquisition module can be used for acquiring the overall temperature of the battery pack in the battery box and also can be used for acquiring the temperature of a single battery, when the temperature of one battery is sharply increased due to faults, the battery temperature acquisition module can generate signals to the central processing module, and after the central processing module receives the signals, the cooling fans can work through the control circuit board, so that the aim of cooling the automobile battery is fulfilled;
the battery balancing module is integrally constructed as a DC/DC converter, the energy of the whole battery pack can be transferred to the battery pack with lower electric quantity, and the energy balance of all battery monomers in the battery pack is realized through the redistribution of the electric quantity;
the central processing module processes and stores the information acquired by the data acquisition module, controls the safety management module and the battery equalization module, has a data transmission function, and can be connected with an upper computer through a port or a wireless network.
The central processing module is an STM32 processor. The STM32 treater is microprocessor, and is small and low power dissipation, battery voltage acquisition module carries out data acquisition through battery voltage monitor chip LTC6804, because battery voltage acquisition module carries out the power supply through the group battery, consequently adopts the little LTC6804 battery voltage monitor chip of consumption to carry out data acquisition. The battery current acquisition module acquires data through the Hall current sensor. The battery temperature acquisition module monitors the battery temperature through a temperature sensor.
The invention monitors and protects the automobile battery by arranging the data acquisition module, the safety management module and the battery equalization module, the total voltage and current of the battery pack and the voltage and current of a single battery can be monitored by the data acquisition module, so that the phenomenon of over-discharge or over-charge of the battery pack is prevented, the total temperature of the battery pack and the temperature of the single battery can be respectively monitored by the battery temperature acquisition module, when the temperature of the single battery rises due to faults, the central processing module can timely receive information, and then the heat dissipation treatment can be carried out on the battery pack by the heat dissipation fan, so that the fire disaster caused by overheating of the battery pack is prevented.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a new energy automobile power lithium ion battery management system, includes central processing module, data acquisition module, safety management module and battery equalization module, its characterized in that: the data acquisition module, the safety management module and the battery equalization module are electrically connected with the central processing module through leads;
the data acquisition module comprises a battery voltage acquisition module, a battery current acquisition module and a battery temperature acquisition module, wherein the battery voltage acquisition module is divided into two parts, one part monitors the total voltage of the whole battery pack, the other part monitors the voltage of each single battery, the battery current acquisition module is also divided into two parts, one part monitors the total current of the whole battery pack, the other part monitors the current of each single battery, the battery temperature acquisition modules are divided into two groups, temperature probes of one group of acquisition modules are directly connected to the single batteries, the other group of acquisition modules are respectively arranged at four corners of the battery box, and the other group of acquisition modules can monitor the temperature of the single batteries and the temperature of the whole batteries;
the safety management module comprises cooling fans and a control circuit board, the cooling fans are symmetrically arranged on the front side and the rear side of the battery pack, the cooling fans are powered by the automobile power battery pack, the control circuit board is electrically connected with the central control and the cooling fans through leads, the control circuit board is controlled by the central processing module and can be used for starting and stopping the cooling fans, the battery temperature acquisition module can be used for acquiring the overall temperature of the battery pack in the battery box and also can be used for acquiring the temperature of a single battery, when the temperature of one battery is sharply increased due to faults, the battery temperature acquisition module can generate signals to the central processing module, and after the central processing module receives the signals, the cooling fans can work through the control circuit board, so that the aim of cooling the automobile battery is fulfilled;
the battery balancing module is integrally constructed as a DC/DC converter, the energy of the whole battery pack can be transferred to the battery pack with lower electric quantity, and the energy balance of all battery monomers in the battery pack is realized through the redistribution of the electric quantity;
the central processing module processes and stores the information acquired by the data acquisition module, controls the safety management module and the battery equalization module, has a data transmission function, and can be connected with an upper computer through a port or a wireless network.
2. The new energy automobile power lithium ion battery management system of claim 1, characterized in that: the central processing module is an STM32 processor.
3. The new energy automobile power lithium ion battery management system of claim 1, characterized in that: the battery voltage acquisition module acquires data through a battery voltage monitoring chip LTC 6804.
4. The new energy automobile power lithium ion battery management system of claim 1, characterized in that: the battery current acquisition module acquires data through the Hall current sensor.
5. The new energy automobile power lithium ion battery management system of claim 1, characterized in that: the battery temperature acquisition module monitors the battery temperature through a temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342063.4A CN111114383A (en) | 2019-12-23 | 2019-12-23 | New energy automobile power lithium ion battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911342063.4A CN111114383A (en) | 2019-12-23 | 2019-12-23 | New energy automobile power lithium ion battery management system |
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| Publication Number | Publication Date |
|---|---|
| CN111114383A true CN111114383A (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911342063.4A Pending CN111114383A (en) | 2019-12-23 | 2019-12-23 | New energy automobile power lithium ion battery management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113380101A (en) * | 2021-06-30 | 2021-09-10 | 广州宣成教育科技有限公司 | New energy automobile power battery management system for practical training teaching |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110148363A1 (en) * | 2009-12-17 | 2011-06-23 | Gm Global Technology Operations, Inc. | Method for use with a vehicle battery pack |
| CN103915877A (en) * | 2014-04-23 | 2014-07-09 | 华南师范大学 | Balance control management system and balance control method of lithium-ion power battery pack |
| CN105711434A (en) * | 2016-02-04 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Power battery management system of electric car |
| CN207518287U (en) * | 2017-06-22 | 2018-06-19 | 天津交通职业学院 | A kind of new energy car battery monitoring system |
-
2019
- 2019-12-23 CN CN201911342063.4A patent/CN111114383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110148363A1 (en) * | 2009-12-17 | 2011-06-23 | Gm Global Technology Operations, Inc. | Method for use with a vehicle battery pack |
| CN103915877A (en) * | 2014-04-23 | 2014-07-09 | 华南师范大学 | Balance control management system and balance control method of lithium-ion power battery pack |
| CN105711434A (en) * | 2016-02-04 | 2016-06-29 | 金龙联合汽车工业（苏州）有限公司 | Power battery management system of electric car |
| CN207518287U (en) * | 2017-06-22 | 2018-06-19 | 天津交通职业学院 | A kind of new energy car battery monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113380101A (en) * | 2021-06-30 | 2021-09-10 | 广州宣成教育科技有限公司 | New energy automobile power battery management system for practical training teaching |
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Application publication date: 20200508 |