CN106786988A - A kind of PACK off-line tests protect high-voltage cage and its guard method - Google Patents
A kind of PACK off-line tests protect high-voltage cage and its guard method Download PDFInfo
- Publication number
- CN106786988A CN106786988A CN201710076643.8A CN201710076643A CN106786988A CN 106786988 A CN106786988 A CN 106786988A CN 201710076643 A CN201710076643 A CN 201710076643A CN 106786988 A CN106786988 A CN 106786988A
- Authority
- CN
- China
- Prior art keywords
- relay
- bms
- charging
- voltage cage
- battery bag
- 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
-
- 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
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
-
- 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
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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
- H02J7/00302—Overcharge protection
-
- 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
- H02J7/00306—Overdischarge protection
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of PACK off-line tests protection high-voltage cage and its guard method; protection high-voltage cage includes high pressure box body; with the relay in high-voltage cage body; in the loop that the contact series of the relay are connected to battery bag and charging/discharging apparatus; the battery bag includes that BMS, BMS are connected by CAN with the signal input part of charging/discharging apparatus；The control end of the relay is also connected to the signal output part of BMS.Guard method includes：Off-line test, when an anomaly occurs, BMS first passes through CAN and notifies charging/discharging apparatus cut-out input and output, while BMS output control signals disconnect the positive relay of master and main negative relay in high-voltage cage body.The present invention increased high-voltage cage between battery bag and charging/discharging apparatus, it is to avoid charging/discharging apparatus control failure causes the situation of battery bag super-charge super-discharge, improves the security of battery bag off-line test.
Description
Technical field
The present invention relates to a kind of PACK off-line tests protection high-voltage cage and its guard method.
Background technology
Need to carry out battery bag charge-discharge test in battery bag off-line test to determine in battery bag battery capacity and fill
Flash-over characteristic.Electric current is within 200A in charge and discharge process, and battery may cause excess temperature, overcharge, crosses and put because of fast charging and discharging,
Cause severe safety accident.
In order to avoid above-mentioned security incident occurs, current major programme is that BMS carries out letter with charging/discharging apparatus by CAN lines
Breath interaction.Whole battery bag information gathering is completed by BMS, and the information for collecting is sent to the upper computer software of PC operations, by upper
Position machine software determines whether charge and discharge process completes, and discharge and recharge in emergency circumstances is ceased and desisted order and sent by BMS.BMS and charge and discharge
Electric equipment is sent in charge and discharge electrical anomaly instruction by CAN communication mode and stops the principal risk that discharge and recharge is present and is：
1st, the CAN communication failure of BMS may cause order undelivered charging/discharging apparatus.
2nd, charging/discharging apparatus CAN communication failure or other failures of control section may cause to cease and desist order and not receive or lead to
Road shut-off order can not be performed normally.
The content of the invention
It is an object of the invention to provide a kind of PACK off-line tests protection high-voltage cage and its guard method, mainly solve existing
Having in batteries of electric automobile bag off-line test carries out there are safety hazards in charge-discharge test.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of PACK off-line tests protect high-voltage cage, including high pressure box body, and the relay in high-voltage cage body, should be after
In the loop that the contact series of electrical equipment are connected to battery bag and charging/discharging apparatus, the battery bag includes BMS, and BMS is total by CAN
Line is connected with the signal input part of charging/discharging apparatus；The control end of the relay is also connected to the high-end control letter inside BMS
Number output end.
Specifically, the relay includes the positive relay of master, main negative relay；Wherein, the contact series of the positive relay of master
To in the circuit of the anode connection of total anode and charging/discharging apparatus of battery bag, the contact series of main negative relay arrive battery bag
In the circuit of the negative terminal connection of total negative terminal and charging/discharging apparatus, the positive relay of master, the control end of main negative relay are all connected to BMS
Signal output part.
Further, heating relay is additionally provided with high-voltage cage body, the contact series of the heating relay arrive battery bag
In the circuit of the anode connection of fire end and charging/discharging apparatus, the control end of the heating relay is also connected to the height inside BMS
End control signal output.
A kind of PACK off-line tests protect the guard method of high-voltage cage, including step：Off-line test, when an anomaly occurs,
BMS first passes through CAN and notifies charging/discharging apparatus cut-out input and output, while BMS output control signals make in high-voltage cage body
The positive relay of master and main negative relay disconnect.
Specifically, the off-line test includes step：BMS gathers battery bag internal temperature, charging and discharging currents and monomer electricity
Pressure, sends to PC in real time, and PC is by analyzing and making the judgement whether off-line test completes with reference to charge and discharge process.
Compared with prior art, the invention has the advantages that：
(1) security performance of the present invention is greatly improved, and is not only avoided that the risk that super-charge super-discharge brings, while automatic to relay
Device is controlled, it is to avoid the operating personnel manually operated electric shock risk brought.
(2) present invention increased high-voltage cage between battery bag and charging/discharging apparatus, it is to avoid charging/discharging apparatus control is lost
Effect causes the situation generation to battery bag super-charge super-discharge, improves the security of battery bag off-line test.
(3) simple structure of the present invention, practical, with low cost, is especially suitable for large-scale promotion and uses.
Brief description of the drawings
Fig. 1 is the system block diagram of the present invention-embodiment.
Specific embodiment
With reference to embodiment and accompanying drawing, the invention will be further described, and embodiments of the present invention are included but is not limited to
The following example.
Embodiment
A high voltage control box is increased on the basis of original control logic, the box carries out break-make control to positive and negative busbar
System, reducing charging/discharging apparatus failure causes the risk of accident.
As shown in figure 1, a kind of PACK off-line tests protection high-voltage cage, including high pressure box body and the master in high-voltage cage body
Positive relay, main negative relay, heating relay.The contact series of the positive relay of master set to total anode of battery bag and discharge and recharge
In the circuit of standby anode connection, the contact series of main negative relay connect to total negative terminal of battery bag and the negative terminal of charging/discharging apparatus
In the circuit for connecing, the contact series of relay to the circuit of the anode connection of the fire end and charging/discharging apparatus of battery bag are heated
In.
BMS is connected by CAN with the signal input part of charging/discharging apparatus, the positive relay of master, main negative relay, heating
The control end of relay is all connected to the high-end control signal output inside BMS, by the high-end relay output control in BMS inside
Signal.
In said apparatus, whole battery bag information gathering is completed by BMS, and BMS is battery management system, it is possible to increase battery
Utilization rate, prevent battery from occurring overcharging and over-discharge, extend battery service life, monitor battery state.Cause
BMS is prior art, be will not be repeated here.
Anode and negative terminal output are first disconnected by charging/discharging apparatus when testing is complete, BMS controls high-end relay to export again
Signal disconnects the positive relay of master in high-voltage cage, main negative relay, makes to lead positive relay, main negative relay all in off-state.
When an anomaly occurs, BMS first passes through CAN and notifies charging/discharging apparatus cut-out input and output, while BMS output controls
Signal processed disconnects the positive relay of master and main negative relay in high-voltage cage body.
Whole off-line test includes monitoring battery bag internal temperature, charging and discharging currents and battery cell voltage.BMS by these
The upper computer software run in PC is sent to after signal acquisition in real time, the data and combination that upper computer software is collected by analysis are filled
Discharge process makes the judgement whether off-line test completes.
Control to relay in high-voltage cage is realized by two ways：The first, PC host computers send break-make order to
BMS, BMS perform relay on-off in high-voltage cage after receiving order, and second, BMS application program has to battery PACK in itself
Overcharge, cross the defence program put with excess temperature, BMS application programs can automatically send stopping discharge and recharge order when there is super-charge super-discharge
Relay in high-voltage cage is simultaneously switched off to charging/discharging apparatus.
The layout of relay should avoid input and output from intersecting and note the isolation of high-low pressure, the present embodiment in whole high-voltage cage
Such as Fig. 1.
According to above-described embodiment, the present invention just can be well realized.What deserves to be explained is, before said structure design
Put, to solve same technical problem, even if some made in the present invention are used without substantial change or polishing
Technical scheme essence still as the present invention, therefore it should also be as within the scope of the present invention.
Claims (5)
1. a kind of PACK off-line tests protection high-voltage cage, it is characterised in that including high pressure box body, and in high-voltage cage body after
In the loop that electrical equipment, the contact series of the relay to battery bag and charging/discharging apparatus are connected, the battery bag includes BMS, BMS
It is connected with the signal input part of charging/discharging apparatus by CAN；The control end of the relay is also connected to the height inside BMS
End control signal output；Also include the PC being connected with BMS.
2. a kind of PACK off-line tests according to claim 1 protect high-voltage cage, it is characterised in that the relay includes
The positive relay of master, main negative relay；Wherein, the total anode and charging/discharging apparatus of the contact series of the positive relay of master to battery bag
In the circuit of anode connection, the negative terminal connection of total negative terminal and charging/discharging apparatus of the main contact series for bearing relay to battery bag
In circuit, the positive relay of master, the control end of main negative relay are all connected to the signal output part of BMS.
3. a kind of PACK off-line tests according to claim 1 protect high-voltage cage, it is characterised in that is also set in high-voltage cage body
There is heating relay, the line of the anode connection of the fire end and charging/discharging apparatus of the contact series of the heating relay to battery bag
Lu Zhong, the control end of the heating relay is also connected to the high-end control signal output inside BMS.
4. a kind of PACK off-line tests according to claim 1-3 any one protect the guard method of high-voltage cage, and it is special
Levy and be, including step：Off-line test, when an anomaly occurs, BMS first passes through CAN and notifies charging/discharging apparatus cut-out input
Output, while BMS output control signals disconnect the positive relay of master and main negative relay in high-voltage cage body.
5. a kind of PACK off-line tests according to claim 4 protect the guard method of high-voltage cage, it is characterised in that described
Off-line test includes step：BMS gathers battery bag internal temperature, charging and discharging currents and monomer voltage, sends in real time to PC, PC
Machine is by analyzing and making the judgement whether off-line test completes with reference to charge and discharge process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076643.8A CN106786988A (en) | 2017-02-13 | 2017-02-13 | A kind of PACK off-line tests protect high-voltage cage and its guard method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076643.8A CN106786988A (en) | 2017-02-13 | 2017-02-13 | A kind of PACK off-line tests protect high-voltage cage and its guard method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106786988A true CN106786988A (en) | 2017-05-31 |
Family
ID=58955433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710076643.8A Pending CN106786988A (en) | 2017-02-13 | 2017-02-13 | A kind of PACK off-line tests protect high-voltage cage and its guard method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106786988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817447A (en) * | 2017-07-14 | 2018-03-20 | 江苏维科新能源科技有限公司 | A kind of universal testing high voltage case of battery system |
| DE202022106939U1 (en) | 2022-12-12 | 2024-03-19 | Hofer Powertrain Innovation Gmbh | Safety device with a disconnection unit for the battery of an electrically powered motor vehicle |
| EP4385789A1 (en) | 2022-12-12 | 2024-06-19 | hofer powertrain innovation GmbH | Safety device and safety method with a disconnecting unit for the battery of an electrically driven motor vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202770974U (en) * | 2012-09-24 | 2013-03-06 | 北京普莱德新能源电池科技有限公司 | Electric vehicle power battery automatic test and diagnosis system |
| KR20160007899A (en) * | 2014-07-09 | 2016-01-21 | 주식회사 엘지화학 | Power System for Over-Charge of Battery Pack And Device Having the Same |
| CN105633486A (en) * | 2015-12-25 | 2016-06-01 | 北京新能源汽车股份有限公司 | High-voltage box of battery system, battery system and vehicle |
| CN205292509U (en) * | 2016-01-11 | 2016-06-08 | 广州汽车集团股份有限公司 | Voltage cutting device of car |
| CN105691226A (en) * | 2016-01-21 | 2016-06-22 | 中国第汽车股份有限公司 | Fault handling system and handling method of lithium ion power battery system |
| CN105843216A (en) * | 2016-04-26 | 2016-08-10 | 奇瑞汽车股份有限公司 | Method and system for off-line detection of new-energy vehicle |
-
2017
- 2017-02-13 CN CN201710076643.8A patent/CN106786988A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202770974U (en) * | 2012-09-24 | 2013-03-06 | 北京普莱德新能源电池科技有限公司 | Electric vehicle power battery automatic test and diagnosis system |
| KR20160007899A (en) * | 2014-07-09 | 2016-01-21 | 주식회사 엘지화학 | Power System for Over-Charge of Battery Pack And Device Having the Same |
| CN105633486A (en) * | 2015-12-25 | 2016-06-01 | 北京新能源汽车股份有限公司 | High-voltage box of battery system, battery system and vehicle |
| CN205292509U (en) * | 2016-01-11 | 2016-06-08 | 广州汽车集团股份有限公司 | Voltage cutting device of car |
| CN105691226A (en) * | 2016-01-21 | 2016-06-22 | 中国第汽车股份有限公司 | Fault handling system and handling method of lithium ion power battery system |
| CN105843216A (en) * | 2016-04-26 | 2016-08-10 | 奇瑞汽车股份有限公司 | Method and system for off-line detection of new-energy vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817447A (en) * | 2017-07-14 | 2018-03-20 | 江苏维科新能源科技有限公司 | A kind of universal testing high voltage case of battery system |
| DE202022106939U1 (en) | 2022-12-12 | 2024-03-19 | Hofer Powertrain Innovation Gmbh | Safety device with a disconnection unit for the battery of an electrically powered motor vehicle |
| EP4385789A1 (en) | 2022-12-12 | 2024-06-19 | hofer powertrain innovation GmbH | Safety device and safety method with a disconnecting unit for the battery of an electrically driven motor vehicle |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |