CN106771781A - Electric automobile electrical fast transient (eft) test device - Google Patents
Electric automobile electrical fast transient (eft) test device Download PDFInfo
- Publication number
- CN106771781A CN106771781A CN201710068799.1A CN201710068799A CN106771781A CN 106771781 A CN106771781 A CN 106771781A CN 201710068799 A CN201710068799 A CN 201710068799A CN 106771781 A CN106771781 A CN 106771781A
- Authority
- CN
- China
- Prior art keywords
- product
- measured
- eft
- electric automobile
- test device
- 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
-
- 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
-
- 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
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
-
- 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
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention provides a kind of electric automobile electrical fast transient (eft) test device, and it is arranged in screened room, and testing stand is provided with screened room；Electric automobile electrical fast transient (eft) test device includes insulation board, load, impulse generator and product to be measured；Insulation board is arranged on testing stand；Load is arranged on testing stand and is connected positioned at the side of insulation board and with product to be measured；Impulse generator is arranged on testing stand and is connected with load identical side and with product to be measured positioned at insulation board；Product to be measured is arranged on testing stand and positioned at insulation board away from load and the side of impulse generator；In product to be measured the input of untapped digital circuit and output port with power supply or be connected and CPU in product to be measured uses watchdog circuit.The electric automobile electrical fast transient (eft) test device that the present invention is provided can reduce testing time and energy.
Description
【Technical field】
The present invention relates to Electromagnetic Compatibility for Electric Vehicles technical field of measurement and test, more particularly to a kind of electric automobile electricity quick wink
Become impulse train test device.
【Background technology】
Battery management system (Battery Management System, BMS) mainly include main frame, CAN cartridge modules, absolutely
Edge module, security module, GPRS module and balanced acquisition module.Wherein, in main frame and other each modules, power filter portion
Point, transformer, crystal oscillator, connector, casing internal and external ground be to transient state conducted immunity (electrical fast transient (eft))
Influence is than larger.
The immunity to interference test master of electric automobile electrical fast transient (eft) (Electrical Fast Transient, EFT)
If simulation transient process, for example, cut-out inductive load, relay contact spring, MOS switch pipe is opened/broken, battery supply connects
The interference type that transition harassing and wrecking are produced such as enter, the impulse train being made up of many fast transient pulses is coupled to Electrical and Electronic and is set
Standby power port, the testing experiment of signal control port.Wherein, electrical fast transient (eft) has the rise time fast, continues
Time is short, and high frequency content enriches (can reach 400MHZ), and repetitive rate is high and the low feature of energy.
However, existing electrical fast transient (eft) test device is only to focus on the test of each modular unit, and
Different testing locations, can cause indivedual test datas to have brighter than larger under different test environments and different test conditions
Aobvious difference, while also to waste testing time and energy by repeatedly testing repeatedly, further, can't ensure battery
EMC (Electro Magnetic Compatibility, the Electro Magnetic Compatibility) tests of management system are passed through.
In consideration of it, real be necessary that a kind of new electric automobile electrical fast transient (eft) test device of offer is above-mentioned to overcome
Defect.
【The content of the invention】
It is an object of the invention to provide a kind of electric automobile electrical fast transient burst that can reduce testing time and energy
Group's test device.
To achieve these goals, the present invention provides a kind of electric automobile electrical fast transient (eft) test device, and it sets
It is placed in screened room, testing stand is provided with the screened room；The electric automobile electrical fast transient (eft) test device bag
Include insulation board, load, impulse generator and product to be measured；The insulation board is arranged on the testing stand；The load sets
It is placed on the testing stand and is connected positioned at the side of the insulation board and with the product to be measured；The impulse generator is set
It is connected with the load identical side and with the product to be measured on the testing stand and positioned at the insulation board；It is described to treat
Product is surveyed to be arranged on the testing stand and positioned at the insulation board away from the load and the side of the impulse generator；Institute
State the input of untapped digital circuit in product to be measured and output port with power supply or be connected and the product to be measured
In CPU use watchdog circuit.
The electric automobile electrical fast transient (eft) test device that the present invention is provided, by will not make in the product to be measured
The input of digital circuit and output port with power supply or be connected and CPU in the product to be measured uses house dog
Circuit so that the EMC tests of the battery management system can be passed through, without repeatedly test, so as to reduce during test
Between and energy.
【Brief description of the drawings】
The schematic diagram of the electric automobile electrical fast transient (eft) test device that Fig. 1 is provided for the present invention.
【Specific embodiment】
In order that the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with accompanying drawing and
Specific embodiment, the present invention will be described in further detail.It should be appreciated that the specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Fig. 1 is referred to, the signal of its electric automobile electrical fast transient (eft) test device 100 provided for the present invention
Figure.The electric automobile electrical fast transient (eft) test device 100 is arranged in screened room 200.Further, the shielding
Testing stand 210 is provided with room 200, the electric automobile electrical fast transient (eft) test device 100 is arranged at the experiment
On platform 210.It is appreciated that in other embodiments, the screened room 200 can also be substituted with darkroom.
The electric automobile electrical fast transient (eft) test device 100 includes insulation board 10, load 20, impulse generator
30 and product to be measured (DUT) 40.The insulation board 10 is arranged on the testing stand 210, its generally rectangular shape.It is described
Load 20 is arranged on the testing stand 210 and is connected positioned at the side of the insulation board 10 and with the product to be measured 40.Institute
Impulse generator 30 is stated to be arranged on the testing stand 210 and load 20 identical sides simultaneously with described positioned at the insulation board 10
It is connected with the product to be measured 40.The product to be measured 40 is arranged on the testing stand 210 and remote positioned at the insulation board 10
From the load 20 and the side of the impulse generator 30.It is appreciated that in other embodiments, the load 20 may be used also
Substituted with by load simulator.
Further, in the product to be measured 40 untapped digital circuit I/O mouth with power supply or ground
Connection.
Further, in the product to be measured 40 CPU (Central Processing Unit central processing units) is used
Watchdog circuit.
Further, the PCB (Print Circuit Board, printed circuit board (PCB)) by the product to be measured 40 is drawn
Data signal transmit after light-coupled isolation.It is appreciated that in alternative embodiments, can also be carried out to the data signal
Transmitted after transformer isolation, and then cause that the analog circuit has stronger common mode disturbances rejection ability.
Further, the wire harness length of the load 20 is less than 2000mm, it is preferable that the wire harness length of the load 20 is
1425mm~1575mm.
Further, the wire harness length between the load 20 and the product to be measured 40 is 490mm~510mm.
Further, the distance of the product to be measured 40 and the testing stand 210 away from the edge of the product to be measured 40
It is 190mm~210mm.
Electric automobile electrical fast transient (eft) test device 100 provided by the present invention, by by the product to be measured
In 40 the input of untapped digital circuit and output port with power supply or be connected and CPU in the product to be measured 40
Using watchdog circuit so that the EMC tests of the battery management system can be passed through, without repeatedly test, so as to subtract
Testing time and energy are lacked.
The present invention is not restricted to described in specification and implementation method, therefore for the personnel of familiar field
Additional advantage and modification are easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of god and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (7)
1. a kind of electric automobile electrical fast transient (eft) test device, it is arranged in screened room, is set in the screened room
There is testing stand；It is characterized in that：The electric automobile electrical fast transient (eft) test device includes insulation board, load, pulse
Generator and product to be measured；The insulation board is arranged on the testing stand；It is described load be arranged on the testing stand and
It is connected positioned at the side of the insulation board and with the product to be measured；The impulse generator is arranged on the testing stand and position
It is connected with the load identical side and with the product to be measured in the insulation board；The product to be measured is arranged at the examination
Test on platform and positioned at the insulation board away from the load and the side of the impulse generator；It is not used in the product to be measured
Digital circuit input and output port with power supply or be connected and CPU in the product to be measured is using house dog electricity
Road.
2. electric automobile electrical fast transient (eft) test device as claimed in claim 1, it is characterised in that：To being treated by described
The data signal for surveying the PCB extractions of product carries out transmission after light-coupled isolation.
3. electric automobile electrical fast transient (eft) test device as claimed in claim 1, it is characterised in that：To being treated by described
The data signal for surveying the PCB extractions of product carries out transmission after transformer isolation.
4. electric automobile electrical fast transient (eft) test device as claimed in claim 1, it is characterised in that：The load
Wire harness length is less than 2000mm.
5. electric automobile electrical fast transient (eft) test device as claimed in claim 4, it is characterised in that：The load
Wire harness length is 1425mm~1575mm.
6. electric automobile electrical fast transient (eft) test device as claimed in claim 1, it is characterised in that：It is described load with
Wire harness length between the product to be measured is 490mm~510mm.
7. electric automobile electrical fast transient (eft) test device as claimed in claim 1, it is characterised in that：The product to be measured
Product are 190mm~210mm away from the distance at the edge of the product to be measured with the testing stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068799.1A CN106771781A (en) | 2017-02-08 | 2017-02-08 | Electric automobile electrical fast transient (eft) test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710068799.1A CN106771781A (en) | 2017-02-08 | 2017-02-08 | Electric automobile electrical fast transient (eft) test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106771781A true CN106771781A (en) | 2017-05-31 |
Family
ID=58956220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710068799.1A Pending CN106771781A (en) | 2017-02-08 | 2017-02-08 | Electric automobile electrical fast transient (eft) test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106771781A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766454A (en) * | 2020-07-31 | 2020-10-13 | 重庆长安新能源汽车科技有限公司 | Electromagnetic compatibility testing system of electric automobile battery management system |
| CN112782500A (en) * | 2020-09-16 | 2021-05-11 | 中国汽车技术研究中心有限公司 | Automobile electromagnetic compatibility electric fast transient pulse group anti-interference test monitoring system and method |
-
2017
- 2017-02-08 CN CN201710068799.1A patent/CN106771781A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766454A (en) * | 2020-07-31 | 2020-10-13 | 重庆长安新能源汽车科技有限公司 | Electromagnetic compatibility testing system of electric automobile battery management system |
| CN112782500A (en) * | 2020-09-16 | 2021-05-11 | 中国汽车技术研究中心有限公司 | Automobile electromagnetic compatibility electric fast transient pulse group anti-interference test monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |