CN106945529A - A kind of inexpensive power train in vehicle application li-ion cell protection system - Google Patents
A kind of inexpensive power train in vehicle application li-ion cell protection system Download PDFInfo
- Publication number
- CN106945529A CN106945529A CN201710322451.0A CN201710322451A CN106945529A CN 106945529 A CN106945529 A CN 106945529A CN 201710322451 A CN201710322451 A CN 201710322451A CN 106945529 A CN106945529 A CN 106945529A
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- CN
- China
- Prior art keywords
- line
- relay
- integrated chip
- protection system
- ion cell
- 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.)
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- 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]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of inexpensive power train in vehicle application li-ion cell protection system, including BMS, integrated chip, relay, battery pack, discharge and recharge port, metal-oxide-semiconductor；The BMS is built-in with integrated chip, communication port and storage mouth, and the communication port is connected by connection with automotive displays；The integrated chip is connected by gathering line with battery pack, and the battery anode or negative pole are connected with relay；The relay is connected with discharge and recharge port；The integrated chip is connected by double loop power supply line with relay, and the power line all the way in the integrated chip is provided with metal-oxide-semiconductor on-off circuit；The present invention effectively reduces the integrated cost of BMS systems, meets over-pressed, under-voltage, excessively stream, short-circuit protection function, while showing battery dump energy (SOC), total voltage, battery temperature in real time using protection integrated chip and relay group syntype；Using modularized design, it is easily installed and later stage maintenance.
Description
Technical field
The present invention relates to a kind of vehicle lithium battery protection technique apparatus field, more particularly to a kind of inexpensive power train in vehicle application lithium
Battery protection system.
Background technology
Vehicle lithium battery management system (BMS), in the prior art, BMS systemic-functions are complete, high cost；Detect function bag
Include：Batteries monomer malfunction, battery temperature, monomer voltage, equilibrium state, state of insulation, high-voltage interlocking, charging or discharging current
Deng；Attached assist can include：Battery pack real time alarm function；Communication work(can be carried out by CAN interface with entire car controller, instrument
Energy；Possess by cutting off battery set charge/discharge high tension loop to battery pack progress defencive function, it is ensured that battery pack is not because overcharging, mistake
Temperature, cross and the abnormal conditions such as put and damage battery；Can and charging equipment communicate and carry out Charge Management function；Estimation function includes：
Lithium battery group dump energy (SOC) estimation, health status (SOH) estimation of battery, battery pack charge and discharge power estimate (SOP) work(in advance
Can etc.；It is disadvantageous in that function is various, it is complicated to make, and is more expensive to manufacture, practical application rate is poor.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of inexpensive power train in vehicle application li-ion cell protection system, for
Deficiency of the prior art, using protection IC chip (IC) and relay group syntype, effectively reduces BMS systems
Integrated cost, li-ion cell protection system uses modularized design, with lithium battery is over-pressed, under-voltage, excessively stream, short-circuit protection function,
Communicated by instrument board on CAN communication line and car, in real time dump energy (SOC), total voltage and the battery temperature of display battery.
To reach above-mentioned purpose, technical scheme is as follows：A kind of inexpensive power train in vehicle application li-ion cell protection system,
Including BMS, integrated chip, relay, battery pack, metal-oxide-semiconductor, discharge and recharge port, storage mouth, communication port, automobile display screen, collection
Line, connection, power line, connecting line, it is characterised in that：
The BMS is built-in with protection IC integrated chip, communication port and storage mouth, and the communication port passes through connection and vapour
Car display is connected；The integrated chip is connected by gathering line with battery pack, and the gathering line includes voltage acquisition line, electric current
Gathering line and temperature acquisition line；The positive pole of the battery pack is connected with relay by connecting line, and the relay passes through connection
Line is connected with discharge and recharge port, and the discharge and recharge port is used under discharge mode as motor, is used as and is filled under charge mode
Motor is used；The integrated chip is connected by double loop power supply line with relay, on the power line all the way in the integrated chip
It is provided with metal-oxide-semiconductor on-off circuit.
The integrated chip, relay, storage mouth, communication port, metal-oxide-semiconductor use modularized design.
The automobile display screen is computer displaying screen for vehicle.
The at most configurable 30 string ternary lithium battery group of the battery pack, its ceiling voltage is 126 volts.
The charging upper limit that the integrated chip is set is 3.5 volts or 4.15 volts；The lower limit that discharges is 2.8 volts or 3.1 volts.
The power line is the power line between relay and metal-oxide-semiconductor, and the power line uses 12 volts or 24 volts of power supplys
Voltage.
The connection is using the live STD bus of CAN.
The present invention operation principle be：Voltage signal, current signal and the temperature signal of battery pack are gathered by integrated chip,
And signal is sent after being calculated by integrated chip, the break-make of metal-oxide-semiconductor, and then unlatching and the closure of control relay is controlled, it is ensured that
Over-pressed, under-voltage, excessively stream, short circuit will not occur for battery；Communicated by instrument board in the CAN and car of connection, in real time display
Dump energy (SOC), total voltage and the battery temperature of battery；Whole synthesis cost is greatly lowered；Pass through integral module
Change design, be easily installed with later stage maintenance, further reduce later maintenance cost.
SOC, full name is State of Charge, and state-of-charge is also dump energy, representative is that battery uses one section
Time or it is long-term lie idle after residual capacity and the ratio of the capacity of its fully charged state, conventional percentage represents.Its
Span is 0-1, represents that battery discharge completely, represents that battery is completely filled with as SOC=1 as SOC=0；SOH full name
It is State-of-Health, is the health status of battery, also referred to as service life state；Because battery is old using necessarily occurring for a long time
Change or deteriorate, thus must estimate；Generally, SOC describes the short term variations of current parameters, and SOH describes long
Phase changes, and SOH measurement need not be carried out continuously, as long as just much of that to most cases periodic measurement；In order to determine the strong of battery
Health state, it must be understood that actual SOC, or SOH must be measured under identical SOC；SOP is subsequent time and lasting
The battery maximum electric discharge that can be provided and the power being electrically charged during high current.Certainly, here it is also contemplated that lasting
Influence of the high current to fuse；SOP accurate estimation can improve the utilization ratio of battery to greatest extent.
By above-mentioned technical proposal, the beneficial effect of technical solution of the present invention is：Using protection (IC chip) IC
With relay group syntype, the integrated cost of BMS systems is effectively reduced, the over-pressed, under-voltage of vehicle lithium battery, mistake is not only met
Stream, short-circuit protection function, while can also be communicated by instrument board on CAN communication line and car, show the residue electricity of battery in real time
Measure (SOC), total voltage, battery temperature；Li-ion cell protection system uses modularized design, it is easy to install, the later stage maintenance side
Just it is simple.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of inexpensive power train in vehicle application li-ion cell protection system logic block diagram signal disclosed in the embodiment of the present invention
Figure.
Numeral and the corresponding component title represented by letter in figure：
The battery pack of 2. integrated chips of 1.BMS, 3. relay 4.
The discharge and recharge port 7. of 5.MOS pipes 6. stores the communication port of mouth 8.
9. the power line of 10. gathering line of automobile display screen, 11. connection 12.
13. connecting line
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
According to Fig. 1, the invention provides a kind of inexpensive power train in vehicle application li-ion cell protection system, including BMS1, integrated core
Piece 2, relay 3, battery pack 4, metal-oxide-semiconductor 5, discharge and recharge port 6, storage mouth 7, communication port 8, automobile display screen 9, gathering line 10,
Connection 11, power line 12, connecting line 13.
The BMS1 is built-in with protection IC integrated chip 2, communication port 8 and storage mouth 7, and the communication port 8 passes through communication
Line 11 is connected with automotive displays 9；The integrated chip 2 is connected by gathering line 10 with battery pack 4, and the gathering line 10 includes
Voltage acquisition line, current acquisition line and temperature acquisition line；The positive pole of the battery pack 4 is connected with relay 3 by connecting line 13,
The relay 3 is connected by connecting line 13 with discharge and recharge port 6, and the discharge and recharge port 6 is used as motor under discharge mode
Use, used under charge mode as charger；The integrated chip 2 is connected by double loop power supply line 12 with relay 3, institute
State and the on-off circuit of metal-oxide-semiconductor 5 is provided with the power line all the way 12 in integrated chip 2.
The integrated chip 2, relay 3, storage mouth 7, communication port 8, metal-oxide-semiconductor 14 use modularized design.
The automobile display screen 9 is the display screen of automobile computer.
The at most configurable 30 string ternary lithium battery group of the battery pack 4, its ceiling voltage is 126 volts.
The charging upper limit that the integrated chip 2 is set is 4.15 volts；The lower limit that discharges is 3.1 volts.
The power line 12 is the power line between relay 3 and metal-oxide-semiconductor 5, and the power line 12 is using 24 volts of power supply electricity
Pressure.
The connection 11 is using the live STD bus of CAN.
By above-mentioned specific embodiment, the beneficial effects of the invention are as follows：Using protection (IC chip) IC and relay
Device integrated mode, effectively reduces the integrated cost of BMS systems, not only meets the over-pressed, under-voltage of vehicle lithium battery, excessively stream, short
Road defencive function, while can also be communicated by instrument board on CAN communication line and car, shows the dump energy of battery in real time
(SOC), total voltage, battery temperature；Li-ion cell protection system uses modularized design, it is easy to install, and later stage maintenance is convenient
Simply.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (6)
1. a kind of inexpensive power train in vehicle application li-ion cell protection system, it is characterised in that including BMS, integrated chip, relay, electricity
Pond group, metal-oxide-semiconductor, discharge and recharge port, storage mouth, communication port, automobile display screen, gathering line, connection, power line, connecting line；Institute
Integrated chip, communication port and storage mouth that BMS is built-in with protection IC are stated, the communication port is connected by connection and automotive displays
Connect；The integrated chip is connected by gathering line with battery pack, and the gathering line includes voltage acquisition line, current acquisition line and temperature
Spend gathering line；The positive pole of the battery pack is connected with relay by connecting line, and the relay passes through connecting line and discharge and recharge
Port is connected, and the discharge and recharge port uses as motor under discharge mode, used under charge mode as charger；Institute
State integrated chip to be connected with relay by double loop power supply line, metal-oxide-semiconductor is provided with the power line all the way in the integrated chip
On-off circuit；The integrated chip, relay, storage mouth, communication port, metal-oxide-semiconductor use modularized design.
2. a kind of inexpensive power train in vehicle application li-ion cell protection system according to claim 1, it is characterised in that the automobile
Display screen is computer displaying screen for vehicle.
3. a kind of inexpensive power train in vehicle application li-ion cell protection system according to claim 1, it is characterised in that the battery
The at most configurable 30 string ternary lithium battery group of group, its ceiling voltage is 126 volts.
4. a kind of inexpensive power train in vehicle application li-ion cell protection system according to claim 1, it is characterised in that described integrated
The charging upper limit that chip is set is 3.5 volts or 4.15 volts；The lower limit that discharges is 2.8 volts or 3.1 volts.
5. a kind of inexpensive power train in vehicle application li-ion cell protection system according to claim 1, it is characterised in that the power supply
Line is the power line between relay and metal-oxide-semiconductor, and the power line uses 12 volts or 24 volts of supply voltages.
6. a kind of inexpensive power train in vehicle application li-ion cell protection system according to claim 1, it is characterised in that the communication
Line is using the live STD bus of CAN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322451.0A CN106945529A (en) | 2017-05-09 | 2017-05-09 | A kind of inexpensive power train in vehicle application li-ion cell protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710322451.0A CN106945529A (en) | 2017-05-09 | 2017-05-09 | A kind of inexpensive power train in vehicle application li-ion cell protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106945529A true CN106945529A (en) | 2017-07-14 |
Family
ID=59478369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710322451.0A Pending CN106945529A (en) | 2017-05-09 | 2017-05-09 | A kind of inexpensive power train in vehicle application li-ion cell protection system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120169117A1 (en) * | 2011-01-04 | 2012-07-05 | Jong-Doo Park | Battery system and electric vehicle including the same |
| CN102689601A (en) * | 2012-06-11 | 2012-09-26 | 浙江海康集团有限公司 | Integrated control system for new energy vehicles |
| CN202488114U (en) * | 2012-03-28 | 2012-10-10 | 天津云舟科技有限公司 | Intelligent lithium battery guard plate |
| FR2987939A1 (en) * | 2012-03-07 | 2013-09-13 | Renault Sa | Method for managing system of e.g. car, involves diagnosing state of battery to determine whether health condition of battery is sufficient to carry out supplying process, and supplying power to circuit to achieve action on actuator |
| CN204046213U (en) * | 2014-07-15 | 2014-12-24 | 深圳市锐深科技有限公司 | A kind of discharge and recharge is with mouth control circuit |
| CN104897953A (en) * | 2015-01-30 | 2015-09-09 | 中天储能科技有限公司 | Accurate lithium battery BMS system charging and discharging current sampling and calculation circuit and control method |
| CN104993530A (en) * | 2015-06-26 | 2015-10-21 | 广西科技大学 | Battery management system |
| CN106208230A (en) * | 2016-08-16 | 2016-12-07 | 深圳天邦达科技有限公司 | A kind of battery management system of band charging stage current-limiting function |
-
2017
- 2017-05-09 CN CN201710322451.0A patent/CN106945529A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120169117A1 (en) * | 2011-01-04 | 2012-07-05 | Jong-Doo Park | Battery system and electric vehicle including the same |
| FR2987939A1 (en) * | 2012-03-07 | 2013-09-13 | Renault Sa | Method for managing system of e.g. car, involves diagnosing state of battery to determine whether health condition of battery is sufficient to carry out supplying process, and supplying power to circuit to achieve action on actuator |
| CN202488114U (en) * | 2012-03-28 | 2012-10-10 | 天津云舟科技有限公司 | Intelligent lithium battery guard plate |
| CN102689601A (en) * | 2012-06-11 | 2012-09-26 | 浙江海康集团有限公司 | Integrated control system for new energy vehicles |
| CN204046213U (en) * | 2014-07-15 | 2014-12-24 | 深圳市锐深科技有限公司 | A kind of discharge and recharge is with mouth control circuit |
| CN104897953A (en) * | 2015-01-30 | 2015-09-09 | 中天储能科技有限公司 | Accurate lithium battery BMS system charging and discharging current sampling and calculation circuit and control method |
| CN104993530A (en) * | 2015-06-26 | 2015-10-21 | 广西科技大学 | Battery management system |
| CN106208230A (en) * | 2016-08-16 | 2016-12-07 | 深圳天邦达科技有限公司 | A kind of battery management system of band charging stage current-limiting function |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |
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| RJ01 | Rejection of invention patent application after publication |