CN107933347A - A kind of battery of electric vehicle management system - Google Patents
A kind of battery of electric vehicle management system Download PDFInfo
- Publication number
- CN107933347A CN107933347A CN201711172005.2A CN201711172005A CN107933347A CN 107933347 A CN107933347 A CN 107933347A CN 201711172005 A CN201711172005 A CN 201711172005A CN 107933347 A CN107933347 A CN 107933347A
- Authority
- CN
- China
- Prior art keywords
- battery pack
- battery
- management system
- electric vehicle
- voltage difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- 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
-
- 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
Landscapes
- 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)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of battery of electric vehicle management system, including battery management system, battery pack, controller, the battery pack is electrically connected by power cord and signal wire with the battery management system, the controller is electrically connected with the battery management system, and the controller is electrically connected with the display screen and motor of electric car respectively.Beneficial effect is：It can solve incompatibility problem of two groups or more battery in electric car use；Realize the versatility and interchangeability of battery of electric vehicle.
Description
Technical field
The present invention relates to technical field of transportation means, and in particular to a kind of battery of electric vehicle management system.
Background technology
With the pollution of environment, people increasingly pay attention to clean energy resource.Electric car is as a kind of traffic of electrical energy drive
Instrument, it is very popular due to its dexterous convenient, energy conservation and environmental protection.Power resources of the battery as electric car, are the weights of electric car
Form.In order to improve the driving of electric car, it is necessary to improve the capacity or increase battery pack of battery.But it is total in more Battery packs
During with work, it be easy to cause incompatible between battery pack, and influences the performance of each battery pack, while the electricity of different electric cars
Pond group does not possess interchangeability.
The content of the invention
The purpose of the present invention is that to solve the above-mentioned problems and provides a kind of battery of electric vehicle management system, to solve
When more Battery packs work together in the prior art, it be easy to cause incompatible between battery pack, and influences the usability of each battery pack
Can, while the battery pack of different electric cars does not possess the technical problems such as versatility, interchangeability.Many technical sides provided by the invention
Preferable technical solution can solve incompatibility problem of two groups or more battery in electric car use in case；Realize electricity
The technique effects such as the versatility and interchangeability of motor-car battery, elaboration as detailed below.
To achieve the above object, the present invention provides following technical scheme：
A kind of battery of electric vehicle management system provided by the invention, including battery management system, battery pack, controller, institute
State battery pack to be electrically connected with the battery management system by power cord and signal wire, the controller and the battery management system
System is electrically connected, and the controller is electrically connected with the display screen and motor of electric car respectively.
Preferably, the battery pack includes battery pack A, battery pack B.
Preferably, under discharge condition, the voltage difference between the battery pack A and the battery pack B is set more than voltage difference
During definite value, the battery management system opens the battery pack A, the battery pack B is closed.
Preferably, under discharge condition, the voltage difference between the battery pack A and the battery pack B is set less than voltage difference
During definite value, the battery management system opens the battery pack A and battery pack B, the battery pack A normal works, institute
State battery pack A and the battery pack B is in electric quantity balancing pattern.
Preferably, during the battery pack A carries out electric quantity balancing to the battery pack B, when electric current exceedes safety value
When, the battery management system carries out overcurrent protection to the battery pack B.
Preferably, under discharge condition, when the battery pack A is identical with the battery pack B voltages, the battery management system
System opens the battery pack A and battery pack B, and the battery pack A and the battery pack B are in working status.
Preferably, under charged state, the voltage difference between the battery pack A and the battery pack B is set more than voltage difference
During definite value, the battery management system makes the battery pack B be in charged state.
Preferably, under charged state, the voltage between the battery pack A and the battery pack B is set less than voltage difference
During value, the battery management system makes the battery pack A and the battery pack B be in charged state.
Preferably, when one group in the battery pack or fully charged multigroup battery pack, the battery management system stops
Only charge to the battery pack having been filled with, and the battery pack to having been filled with carries out overcharging protection.
Using a kind of above-mentioned battery of electric vehicle management system, the system is suitable for the management of one group or multigroup battery pack,
The present embodiment is by taking two Battery pack groups as an example, when electric car is in running order, by the battery pack A and battery pack B into
Row power supply, controls the motor to work, so as to drive electric car to travel by the controller；During in discharge condition, pass through
The battery management system is monitored the electricity of the battery pack A and the battery pack B and voltage etc., if the battery
When voltage difference between the group A and battery pack B is more than voltage difference setting value, the battery pack A is in open mode, institute at this time
State battery pack B to be closed, electric power is provided by the battery pack A；It is described after described battery pack A work a period of times
Voltage difference between battery pack A and the battery pack B can be gradually reduced, when voltage difference is less than the voltage difference of setting, the electricity
Pond group A carries out electric quantity balancing while electric discharge, to the battery pack B, until the electricity of the battery pack A and battery pack B
Press it is equal, when carrying out electric quantity balancing, if euqalizing current is more than safety value, battery management system to the battery pack B into
Row overcurrent protection；As the battery pack A and the equal battery pack B voltages, the battery pack A and the battery pack B are at the same time
Electric discharge, there is provided electric energy；During in charged state, by the battery management system to the battery pack A's and battery pack B
Electricity and voltage etc. are monitored, if the voltage difference between the battery pack A and the battery pack B is more than voltage difference setting value
When, only individually charged to the battery pack B by the battery management system；One section of charging is carried out to the battery pack B
After time, the voltage difference between the battery pack A and the battery pack B can be gradually reduced, when voltage difference is less than the voltage of setting
When poor, charging is carried out at the same time to the battery pack A and the battery pack B by the battery management system, is distributed according to electric current
Algorithm, is allocated and controls to the charging current of the battery pack A and the battery pack B, until the battery pack A and described
Battery pack B voltages are equal；As the battery pack A or the battery pack B fully charged, the battery management system stops to
The battery pack charging being full of, and the battery pack to having been filled with carries out overcharging protection；It can be solved using the system more
The incompatibility problem of Battery pack group work, can realize the versatility and interchangeability of battery of electric vehicle.
Beneficial effect is：It can solve incompatibility problem of two groups or more battery in electric car use；It is real
The versatility and interchangeability of existing battery of electric vehicle.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the system principle schematic diagram of the present invention.
The reference numerals are as follows：
1st, battery management system；2nd, battery pack；201st, battery pack A；202nd, battery pack B；3rd, display screen；4th, controller；5、
Motor.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all on the premise of creative work is not made
Other embodiment, belongs to the scope that the present invention is protected.
Shown in Figure 1, the present invention provides a kind of battery of electric vehicle management system, including battery management system 1, battery
Group 2, controller 4, battery pack 2 are electrically connected by power cord and signal wire with battery management system 1, controller 4 and battery management
System 1 is electrically connected, and controller 4 is electrically connected with the display screen 3 and motor 5 of electric car respectively, and battery pack 2 is shown by display screen 3
The information such as electricity.
As optional embodiment, battery pack 2 includes battery pack A201, battery pack B202；
Under discharge condition, the voltage difference between the battery pack A201 and the battery pack B202 is more than voltage difference setting value
When, battery management system 1 opens battery pack A201, battery pack B202 is closed, and battery pack A201 is individually powered；
Under discharge condition, when the voltage difference between battery pack A201 and battery pack B202 is less than voltage difference setting value, battery
Management system 1 opens battery pack A201 and battery pack B202, battery pack A201 normal works, battery pack A201 and battery pack
B202 is in electric quantity balancing pattern, by battery pack A201 to battery pack B202 carry out electric quantity balancing, until battery pack A201 and
The voltage of battery pack B202 is equal；
During battery pack A201 carries out electric quantity balancing to battery pack B202, if euqalizing current is more than safety value, electricity
Pond management system 1 carries out overcurrent protection to battery pack B202；
Under discharge condition, when battery pack A201 is identical with battery pack B202 voltages, battery management system 1 makes battery pack A201
Opened with battery pack B202, battery pack A201 and battery pack B202 are in working status, battery pack A201 and battery pack B202
It is powered jointly；
Under charged state, the voltage difference between the battery pack A201 and the battery pack B202 is more than voltage difference setting value
When, battery management system 1 makes battery pack B202 be in charged state, individually charges to battery pack B202；
Under charged state, when the voltage between battery pack A201 and battery pack B202 is less than voltage difference setting value, cell tube
Reason system 1 makes battery pack A201 and battery pack B202 be in charged state, is distributed according to current weighting algorithm, to battery pack A201
It is allocated and controls with the charging current of battery pack B202, until battery pack A201 and battery pack B202 voltages is equal；
As battery pack A201 or the battery pack B202 fully charged, battery management system 1 stops the electricity to having been filled with
Pond group 2 charges, and the battery pack 2 to having been filled with carries out overcharging protection.
Using the above structure, the system is suitable for the management of one group or more Battery packs, the present embodiment using two Battery packs as
Example, when electric car is in running order, is powered by battery pack A201 and battery pack B202, electricity is controlled by controller 4
Machine 5 works, so as to drive electric car to travel；During in discharge condition, by battery management system 1 to battery pack A201 and battery
Electricity and voltage of group B202 etc. are monitored, if the voltage difference between the battery pack A201 and the battery pack B202 is big
When voltage difference setting value, battery pack A201 is in opening state at this time, and battery pack B202 is closed, and passes through battery pack
A201 provides electric energy；After battery pack A201 work a period of times, voltage difference between battery pack A201 and battery pack B202 can be by
Decrescence small, when voltage difference is less than the voltage difference of setting, battery pack A201 carries out electricity while electric discharge, to battery pack B202
Equilibrium, until the voltage of battery pack A201 and battery pack B202 is equal, when carrying out electric quantity balancing, if euqalizing current is more than peace
During total head, battery management system 1 carries out overcurrent protection to battery pack B202；When battery pack A201 and battery pack B202 voltages are equal
When, battery pack A201 and battery pack B202 discharge at the same time, there is provided electric energy；It is right by battery management system 1 during in charged state
Electricity and voltage of battery pack A201 and battery pack B202 etc. are monitored, if the battery pack A201 and the battery pack
When voltage difference between B202 is more than voltage difference setting value, only battery pack B202 is individually filled by battery management system 1
Electricity；After carrying out charging a period of time to battery pack B202, the voltage difference between battery pack A201 and battery pack B202 can gradually subtract
It is small, when voltage difference be less than setting voltage difference when, by battery management system 1 to battery pack A201 and battery pack B202 at the same time into
Row charging, and according to current weighting algorithm, the charging current of battery pack A201 and battery pack B202 are allocated and controlled, directly
It is equal to battery pack A201 and battery pack B202 voltages；As battery pack A201 or battery pack B202 fully charged, battery management
System 1 stops the charging to having been filled with battery pack 2, and the battery pack 2 to having been filled with carries out overcharging protection；Can using the system
The incompatibility problem of multigroup battery pack work is solved, can realize the versatility and interchangeability of battery of electric vehicle.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
- A kind of 1. battery of electric vehicle management system, it is characterised in that：Including battery management system (1), battery pack (2), controller (4), the battery pack (2) is electrically connected by power cord and signal wire with the battery management system (1), the controller (4) It is electrically connected with the battery management system (1), the controller (4) is electrically connected with the display screen (3) and motor (5) of electric car respectively Connect.
- A kind of 2. battery of electric vehicle management system according to claim 1, it is characterised in that：The battery pack (2) includes electricity Pond group A (201), battery pack B (202).
- A kind of 3. battery of electric vehicle management system according to claim 2, it is characterised in that：Under discharge condition, the battery When voltage difference between group A (201) and the battery pack B (202) is more than voltage difference setting value, the battery management system (1) Open the battery pack A (201), the battery pack B (202) is closed.
- A kind of 4. battery of electric vehicle management system according to claim 2, it is characterised in that：Under discharge condition, the battery When voltage difference between group A (201) and the battery pack B (202) is less than voltage difference setting value, the battery management system (1) The battery pack A (201) and the battery pack B (202) are opened, battery pack A (201) normal work, the battery pack A (201) and the battery pack B (202) is in electric quantity balancing pattern.
- A kind of 5. battery of electric vehicle management system according to claim 4, it is characterised in that：The battery pack A (201) is to institute During stating battery pack B (202) progress electric quantity balancings, when electric current exceedes safety value, the battery management system (1) is to described Battery pack B (202) carries out overcurrent protection.
- A kind of 6. battery of electric vehicle management system according to claim 2, it is characterised in that：Under discharge condition, the battery Group A (201) it is identical with battery pack B (202) voltage when, the battery management system (1) make the battery pack A (201) and The battery pack B (202) is opened, and the battery pack A (201) and the battery pack B (202) are in working status.
- A kind of 7. battery of electric vehicle management system according to claim 2, it is characterised in that：Under charged state, the battery When voltage difference between group A (201) and the battery pack B (202) is more than voltage difference setting value, the battery management system (1) The battery pack B (202) is set to be in charged state.
- A kind of 8. battery of electric vehicle management system according to claim 2, it is characterised in that：Under charged state, the battery When voltage between group A (201) and the battery pack B (202) is less than voltage difference setting value, the battery management system (1) makes The battery pack A (201) and the battery pack B (202) are in charged state.
- A kind of 9. battery of electric vehicle management system according to claim 2, it is characterised in that：One in the battery pack (2) When group or fully charged multigroup battery pack, the battery management system (1) stops charging to the battery pack having been filled with, and to having filled Full battery pack carries out overcharging protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172005.2A CN107933347A (en) | 2017-11-20 | 2017-11-20 | A kind of battery of electric vehicle management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172005.2A CN107933347A (en) | 2017-11-20 | 2017-11-20 | A kind of battery of electric vehicle management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107933347A true CN107933347A (en) | 2018-04-20 |
Family
ID=61929754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172005.2A Pending CN107933347A (en) | 2017-11-20 | 2017-11-20 | A kind of battery of electric vehicle management system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107933347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334510A (en) * | 2018-11-23 | 2019-02-15 | 北斗航天汽车（北京）有限公司 | A kind of motor-driven loading vehicle battery pack parameter display system and display methods |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477530A (en) * | 2011-03-09 | 2013-12-25 | 原子能和替代能源委员会 | Charge balancing system for batteries |
| WO2014063065A1 (en) * | 2012-10-19 | 2014-04-24 | Gogoro, Inc. | Battery configuration for an electric vehicle |
| CN106627188A (en) * | 2016-03-23 | 2017-05-10 | 上海鼎研智能科技有限公司 | Extended-range system of electric car |
| CN106671819A (en) * | 2017-03-02 | 2017-05-17 | 南京交通职业技术学院 | Monitoring device for battery equilibrium performance of vehicle with double battery packs |
-
2017
- 2017-11-20 CN CN201711172005.2A patent/CN107933347A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477530A (en) * | 2011-03-09 | 2013-12-25 | 原子能和替代能源委员会 | Charge balancing system for batteries |
| WO2014063065A1 (en) * | 2012-10-19 | 2014-04-24 | Gogoro, Inc. | Battery configuration for an electric vehicle |
| CN106627188A (en) * | 2016-03-23 | 2017-05-10 | 上海鼎研智能科技有限公司 | Extended-range system of electric car |
| CN106671819A (en) * | 2017-03-02 | 2017-05-17 | 南京交通职业技术学院 | Monitoring device for battery equilibrium performance of vehicle with double battery packs |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334510A (en) * | 2018-11-23 | 2019-02-15 | 北斗航天汽车（北京）有限公司 | A kind of motor-driven loading vehicle battery pack parameter display system and display methods |
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Application publication date: 20180420 |