CN107150609A - A kind of current monitoring device of battery management system - Google Patents
A kind of current monitoring device of battery management system Download PDFInfo
- Publication number
- CN107150609A CN107150609A CN201710467248.2A CN201710467248A CN107150609A CN 107150609 A CN107150609 A CN 107150609A CN 201710467248 A CN201710467248 A CN 201710467248A CN 107150609 A CN107150609 A CN 107150609A
- Authority
- CN
- China
- Prior art keywords
- current sensor
- management system
- battery management
- current
- electric
- 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
Links
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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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
-
- 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)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of current monitoring device of battery management system, including：Battery management system, power battery module, other electric components, the first current sensor and the second current sensor, the battery management system, power battery module, other electric components, the first current sensor and the second current sensor constitute a series circuit；The battery management system is respectively that first current sensor and second current sensor provide power supply, and first current sensor and second current sensor respectively transmit the current information collected to the battery management system.The present invention can both realize the reliable measurements of electric current in the case of the high-acruracy survey and failure of electric current under normal running conditions, and the demand of SOC calculating and the requirement of safeguard protection can be met again.
Description
First, technical field
The present invention relates to electric vehicle engineering field, more particularly to a kind of current monitoring device of battery management system.
2nd, background technology
As country continues to increase to the investment of electric automobile, electric vehicle engineering is developed rapidly.It is electronic
Automobile refers to, using vehicle power as power, be travelled with power wheel, meets road traffic, the car of security legislation requirements
.It is started using electricity in the battery is stored.When driving automobile sometimes using 12 or 24 pieces of batteries, then need sometimes more
It is many.The composition of electric automobile includes：The mechanical system such as driven by power and control system, driving force transmission, complete assigned tasks
Equipment etc..Driven by power and control system are the cores of electric automobile, are also the maximum difference for being different from internal-combustion engines vehicle
Point.Driven by power and control system are made up of speed-regulating control device of drive motor, power supply and motor etc..Electric automobile
Other devices are substantially identical with internal-combustion engines vehicle.
In order to ensure the battery management system inside vehicle-mounted energy-storage system can preferably calculate SOC (battery charge state) and
The trouble free service of more reliable guarantee battery bag, need to be optimized to the collection and control of battery bag DC current.
On the one hand, SOC calculating is needed in the range of the current work under the nominal situation of vehicle-mounted energy-storage system, can be carried out
High-precision current measurement, to ensure that it is accurate that SOC is calculated；On the other hand, battery management system is also needed to according to failure situation
Under current value monitored in real time, to ensure that over current fault will not cause any damage to vehicle-mounted energy-storage system.
3rd, the content of the invention
The invention discloses a kind of current monitoring device of battery management system, including：Battery management system, electrokinetic cell
Module, other electric components, the first current sensor and the second current sensor, the battery management system, electrokinetic cell mould
Block, other electric components, the first current sensor and the second current sensor constitute a series circuit；The battery management system
Respectively described first current sensor and second current sensor provide power supply, first current sensor and
Second current sensor respectively transmits the current information collected to the battery management system.
The beneficial effect for the technical scheme that the present invention is provided is：The present invention uses two current senses with range and precision
Device is acquired and monitored respectively to the running current and fault current of electrokinetic cell bag, enables battery management system safety
Reliably electric current is acquired under all kinds of conditions of work, that is, realizes the high-acruracy survey of electric current and event under normal running conditions
The reliable measurements of electric current in the case of barrier, meet the demand of SOC calculating and the requirement of safeguard protection.
4th, illustrate
Fig. 1 is a kind of structural representation of the current monitoring device of battery management system.
5th, specific embodiment
Embodiment 1
A kind of current monitoring device for battery management system, referring to Fig. 1, including：Battery management system 1, the first electricity
Flow sensor 2, the second current sensor 5, power battery module 3 and other electric components 5 are (for example：It is high-voltage DC contactor, molten
Disconnected device, pre-charge contactor and pre-charge resistance, the circuit board of battery management system and its electronic component etc.), the first electricity
Flow sensor 2, the second current sensor 5, power battery module 3 and other electric components 5 constitute a series circuit；Battery management
System 1 is respectively that the first current sensor 2 and the second current sensor 5 provide power supply, the first current sensor 2 and second
Current sensor 5 respectively transmits the current information collected to battery management system 1.
The operation principle of the current monitoring device is described below in detail：First current sensor 2 and the second current sensor 5
Be powered by battery management system 1, the output signal of the first current sensor 2 and the second current sensor 5 also transmit to
Battery management system 1.Battery management system 1 is under all kinds of mode of operations of electrokinetic cell bag to the He of the first current sensor 2
The signal of second current sensor 5 carries out continuous acquisition.In the normal mode of operation, the height the first current sensor 2 gathered
Precision current value is used for SOC calculating；Under nonserviceabling, the low precision current value that the second current sensor 5 is gathered is used for
(specific calculation procedure is known to those skilled in the art, and the embodiment of the present invention is not done to this for the calculating of safety control strategy
Repeat).
Wherein, normal mode of operation be electrokinetic cell bag according to whole-control system by judging the drive demand of driver
The control instruction sent, and electrical energy drive motor driven systems are exported, vehicle is advanced or is retreated, or carry out braking energy time
The mode of operations such as feedback.
Wherein, malfunction is because battery bag or vehicle are impacted or the vehicle electronics component hair such as power drive system
It is raw to damage, caused by battery bag operating current exceed the current margin that is included under above-mentioned normal mode of operation this
The state of kind.
Claims (2)
1. a kind of current monitoring device of battery management system, including：Battery management system, power battery module, other are electric
Part, the first current sensor and the second current sensor, it is characterised in that the battery management system, power battery module,
Other electric components, the first current sensor and the second current sensor constitute a series circuit.
Passed 2. battery management system according to claim 1 is respectively first current sensor and second electric current
Sensor provides power supply, and first current sensor and second current sensor are respectively by the current information collected
Transmit to the battery management system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467248.2A CN107150609A (en) | 2017-06-19 | 2017-06-19 | A kind of current monitoring device of battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710467248.2A CN107150609A (en) | 2017-06-19 | 2017-06-19 | A kind of current monitoring device of battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107150609A true CN107150609A (en) | 2017-09-12 |
Family
ID=59795423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710467248.2A Pending CN107150609A (en) | 2017-06-19 | 2017-06-19 | A kind of current monitoring device of battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107150609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107776426A (en) * | 2017-10-20 | 2018-03-09 | 成都雅骏新能源汽车科技股份有限公司 | Power battery of electric vehicle energy stream monitoring system |
| CN112557913A (en) * | 2020-12-29 | 2021-03-26 | 华人运通(江苏)技术有限公司 | Current detection method and system for battery pack and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204361728U (en) * | 2014-12-31 | 2015-05-27 | 中国汽车技术研究中心 | A kind of current monitoring device for battery management system |
-
2017
- 2017-06-19 CN CN201710467248.2A patent/CN107150609A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204361728U (en) * | 2014-12-31 | 2015-05-27 | 中国汽车技术研究中心 | A kind of current monitoring device for battery management system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107776426A (en) * | 2017-10-20 | 2018-03-09 | 成都雅骏新能源汽车科技股份有限公司 | Power battery of electric vehicle energy stream monitoring system |
| CN112557913A (en) * | 2020-12-29 | 2021-03-26 | 华人运通(江苏)技术有限公司 | Current detection method and system for battery pack and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101025436B (en) | High-voltage safety monitoring device for electric automobile | |
| JP5677261B2 (en) | Power storage system | |
| CN105644373A (en) | High-voltage integration module for electric automobile | |
| CN103339816B (en) | Electric vehicle battery system | |
| CN104115016B (en) | Use the in-car high voltage cable of rotating machinery detection hybrid power | |
| CN105620304B (en) | Battery pack thermal run away monitoring device and electric automobile | |
| CN103770660B (en) | A kind of explosion-proof pure electric vehicle for coal mine operation | |
| EP3075050B1 (en) | Traction voltage system in a vehicle and method for controlling such a system | |
| CN204956144U (en) | High voltage power distribution system of fuel cell big bus car | |
| CN104085312A (en) | Battery management system of electric car | |
| JP2015053825A (en) | Electric power system for vehicle | |
| WO2022105098A1 (en) | Control device for motor driver, motor driver, and aerial platform truck | |
| CN104118436A (en) | Security monitoring method for electric vehicle range increase system | |
| EP2986466B1 (en) | Method and arrangement for error detection during charging of an energy storage system | |
| CN107150609A (en) | A kind of current monitoring device of battery management system | |
| EP2848455A1 (en) | Electric vehicle with an on-board charger | |
| CN205890573U (en) | Bow formula charging system for electric motor car | |
| CN202121029U (en) | Battery management system of pure electric automobile | |
| CN104827986A (en) | Hybrid electric vehicle and switch protection device of high-voltage circuit thereof | |
| CN104052367B (en) | Control strategy for the motor in vehicle | |
| CN105599578A (en) | Control system of hybrid electric vehicle | |
| CN204361728U (en) | A kind of current monitoring device for battery management system | |
| CN104002686A (en) | Braking system and method for container straddle carrier | |
| CN201312061Y (en) | Power distribution system | |
| CN203929988U (en) | A kind of insulation testing device for electric automobile based on voltage monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170912 |