CN105548877B - A kind of AUTOMOTIVE RELAY life test method - Google Patents
A kind of AUTOMOTIVE RELAY life test method Download PDFInfo
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- CN105548877B CN105548877B CN201610091526.4A CN201610091526A CN105548877B CN 105548877 B CN105548877 B CN 105548877B CN 201610091526 A CN201610091526 A CN 201610091526A CN 105548877 B CN105548877 B CN 105548877B
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
- G01R31/3278—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches of relays, solenoids or reed switches
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a kind of AUTOMOTIVE RELAY life test methods,Using the life test apparatus including electronic load,The electronic load is used for simulated automotive motor load,The life test apparatus further includes that load power source provides required voltage for electronic load,Electric current and power source,Electronic load generates simulated automotive motor load current waveform,And generate load current,Coil power provides the energy to be tested the coil stimulating of AUTOMOTIVE RELAY,Computer+control+drive module storage test parameters and control sequential,And it sends out instruction and coordinates entire life test work,Computer+control+the drive module is connected by the first solid-state relay,Control triggers the electronic load,And the computer+also there is communication link between control+drive module and the electronic load,Computer+control+the drive module is connected by the second solid-state relay and is tested AUTOMOTIVE RELAY.
Description
Technical field
The invention belongs to technical field of automobile parts, more particularly to a kind of AUTOMOTIVE RELAY life test method.
Background technology
Motor is widely used in the car, such as rain shaving electrical machine, window lifting motor.In entire automobile life cycle, electricity
Machine is frequently used in startup, stall halted state.Control driving motor is all usually AUTOMOTIVE RELAY, since motor has
Inductance characteristic will produce certain influence for the service life of AUTOMOTIVE RELAY.Therefore AUTOMOTIVE RELAY is loaded in electric motor of automobile
Under the conditions of application life become its quality an important performance assessment criteria.
Life test of the AUTOMOTIVE RELAY under electric motor of automobile loading condition is examination relay in electric motor of automobile load bar
A kind of method of application life under part.Experiment includes temperature and humidity to environmental requirement, and voltage, electricity are required to include to contact capacity
Stream and power, operating frequency, service life number etc. are required to include to action frequency.
Life test would generally use electronic load simulated automotive motor, be loaded compared to electric motor of automobile, and electronic load is made
Include for the advantages of test load：Simulation context is big, service life is long and test result is more acurrate.Simulation context is because of electricity greatly
Machine has different current waveforms in different phase, such as load be not loaded with, new motor and old motor, environment temperature height with it is low,
Change waveform parameter can be achieved with.Service life length is because in the entire test period, electronic load can make for a long time
With.Load is replaced due to not having to shut down, it is ensured that the continuity of experiment ensure that the authenticity of test result.
But a problem, i.e. relay contact closure will produce as load using electronic load simulated automotive motor
With the stationary problem of electronic load load.Relay is energized to contact closure from coil and has one section of delay time, it is by relay
Device structure is determined.Slightly variant with model relay, different model relay difference can be more greatly.Electronic load load needs
A trigger signal is wanted, it can complete sequence (waveform) load when there is trigger signal, then wait for triggering letter next time
Number.From trigger signal is received to drawing load output to be also required to a period of time, this time can be fixed (mainly by software electronic load
Determine) but certainly exist difference with relay delay time.Test requirements document is when electronic load is necessary simultaneously for relay contact closure
Load, i.e. relay contact closure must be synchronous with electronic load load.
Invention content
The object of the present invention is to provide a kind of AUTOMOTIVE RELAY life test methods, to solve to simulate vapour using electronic load
Stationary problem of the vehicle motor as relay contact closure produced by load and electronic load load.
The technical scheme is that a kind of AUTOMOTIVE RELAY life test method, using the service life including electronic load
Experimental rig, the electronic load are used for simulated automotive motor load, and the life test apparatus further includes computer+control+drive
Dynamic model block, load power source, coil power, the first solid-state relay and the second solid-state relay, wherein
Load power source provides required voltage, electric current and power source for electronic load,
Electronic load generates simulated automotive motor load current waveform, and generates pulling load current,
Coil power provides the energy to be tested the coil stimulating of AUTOMOTIVE RELAY,
Computer+control+drive module storage test parameters and control sequential, and send out instruction and coordinate entire life test
Work,
Computer+control+the drive module is connected by the first solid-state relay, controls the triggering electronic load, and
The computer+also there is communication link between control+drive module and the electronic load,
Computer+control+the drive module connects load power source by its first program-controlled end,
Computer+control+the drive module connects coil power by its second program-controlled end,
Computer+control+the drive module is connected by the second solid-state relay and is tested AUTOMOTIVE RELAY,
Include the following steps：
A1, initialization, including by test parameters input computer+control+drive module, test parameters include load voltage,
Current waveform, coil voltage, action make-to-break ratio and service life number；
A2 carries out delay time test, it is assumed that relay delay time 5mS, electronic load prolong to tested AUTOMOTIVE RELAY
When the time be 50mS；
A3, by the first program-controlled end and the second program-controlled end to load power source and coil power offered load voltage, coil electricity
Pressure, by communication link loading current waveform to electronic load, electronic load does not export at this time, is tested AUTOMOTIVE RELAY contact
Also it is not closed；
A4, external trigger end one undersuing about 10mS of first electron load, it is lower to jump along effectively electronic load being allowed to open
Beginning delay timing；
It is lower to jump along effectively allowing tested automobile to tested one low level of drive of automotive relay coil after A5, the 45mS that is delayed
Relay trigger timing；
A6, when timing to 50mS, tested AUTOMOTIVE RELAY contact closure while electronic load starts to load, realize by
Survey AUTOMOTIVE RELAY contact closure loads synchronous with electronic load；
A7 waits for next cycle electronic load external trigger pulse to occur, until entire off-test.
The present invention is triggered by a kind of AUTOMOTIVE RELAY simulated automotive motor load test method-synchronization, solves use
Stationary problem of the electronic load simulated automotive motor as relay contact closure produced by load and electronic load load.
Description of the drawings
Fig. 1 is AUTOMOTIVE RELAY simulated automotive motor load test method-synchronization trigger theory block diagram of the present invention.
Fig. 2 is the synchronous triggering sequence diagram that the relay contact closure of the present invention is loaded with electronic load.
Specific implementation mode
Fig. 1 is a kind of AUTOMOTIVE RELAY simulated automotive motor load test method-synchronization trigger theory block diagram.In figure：
Load power source：Required voltage, electric current, power source are provided for test load；
Electronic load：Simulated automotive motor load current waveform is generated, and generates pulling load current；
Coil power：The energy is provided for relay coil excitation；
Relay：For by subjects；
U1、U2：For solid-state relay, it has many advantages, such as quick action, non-jitter.Respectively drive electronic load load
And certain make-to-break ratio periodic duty is pressed by test relay, until off-test；
Computer+control+driving：All test parameters, control sequential etc. are all stored in computer, and have computer to pass through control
Device, driver send out instruction to various pieces and coordinate entire pilot system work.
The present invention includes the following steps：
1. pilot system workflow：
1.1 initialization：Test parameters is inputted into computer, as load voltage, current waveform, coil voltage, action make-to-break ratio,
Service life number etc.；
1.2 pairs of subject relays carry out delay time test, it is assumed that when relay delay time 5mS, electronic load delay
Between be 50mS；
1.3 by far controlling end offered load voltage, coil voltage, by 232 interface loading current waveforms to electronic load,
Notice that there is no output, relay contacts not also to be closed for electronic load at this time；
2. synchronizing process such as Fig. 2 of relay contact closure and electronic load load：
2.1 first electrons load external trigger end one undersuing about 10mS, lower to jump along effectively electronic load being allowed to start
Be delayed timing；
One low level of drive of relay coil is given after 2.2 delay 45mS, it is lower to jump along effective relay trigger meter that allows
When；
2.3 when timing to 50mS relay contact closures while electronic load starts to load, and realizes relay contact and closes
Conjunction loads synchronous with electronic load；
2.4 wait for next cycle electronic load external trigger pulse to occur ... until entire off-test.
Claims (1)
1. a kind of AUTOMOTIVE RELAY life test method, using the life test apparatus including electronic load, which uses
In simulated automotive motor load, the life test apparatus further includes computer+control+drive module, load power source, coil electricity
Source, the first solid-state relay and the second solid-state relay, wherein
Load power source provides required voltage, electric current and power source for electronic load,
Electronic load generates simulated automotive motor load current waveform, and generates pulling load current,
Coil power provides the energy to be tested the coil stimulating of AUTOMOTIVE RELAY,
Computer+control+drive module storage test parameters and control sequential, and send out instruction and coordinate entire life test work
Make,
Computer+control+the drive module is connected by the first solid-state relay, controls the triggering electronic load, and described
Computer+also there is communication link between control+drive module and the electronic load,
Computer+control+the drive module connects load power source by its first program-controlled end,
Computer+control+the drive module connects coil power by its second program-controlled end,
Computer+control+the drive module is connected by the second solid-state relay and is tested AUTOMOTIVE RELAY,
It is characterized by comprising the following steps：
A1, initialization, including test parameters is inputted into computer+control+drive module, test parameters includes load voltage, electric current
Waveform, coil voltage, action make-to-break ratio and service life number；
A2 carries out delay time test to tested AUTOMOTIVE RELAY, it is assumed that when relay delay time 5mS, electronic load delay
Between be 50mS；
A3 leads to by the first program-controlled end and the second program-controlled end to load power source and coil power offered load voltage, coil voltage
Communication link loading current waveform is crossed to electronic load, electronic load does not export at this time, and tested AUTOMOTIVE RELAY contact does not have yet
There is closure；
A4, one, the external trigger end undersuing 10mS of first electron load, it is lower to jump along effective electronic load trigger that allows
Timing；
It is lower to jump along effectively allowing tested automobile relay to tested one low level of drive of automotive relay coil after A5, the 45mS that is delayed
Device trigger timing；
A6 is tested AUTOMOTIVE RELAY contact closure while electronic load starts to load, realize tested vapour when timing to 50mS
Vehicle relay contact closure loads synchronous with electronic load；
A7 waits for next cycle electronic load external trigger pulse to occur, until entire off-test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610091526.4A CN105548877B (en) | 2016-02-18 | 2016-02-18 | A kind of AUTOMOTIVE RELAY life test method |
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| CN201610091526.4A CN105548877B (en) | 2016-02-18 | 2016-02-18 | A kind of AUTOMOTIVE RELAY life test method |
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| CN105548877A CN105548877A (en) | 2016-05-04 |
| CN105548877B true CN105548877B (en) | 2018-07-27 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109307838A (en) * | 2017-07-28 | 2019-02-05 | 中航光电科技股份有限公司 | A kind of new-energy automobile high-voltaghe compartment factory testing system |
| CN107656200A (en) * | 2017-11-09 | 2018-02-02 | 北京长城华冠汽车技术开发有限公司 | A kind of battery relay life estimate device and evaluation method |
| CN109030987B (en) * | 2018-06-15 | 2020-09-18 | 贵州振华群英电器有限公司（国营第八九一厂） | Test device and test method for simulating motor load |
| CN112985488B (en) * | 2021-02-23 | 2022-08-02 | 西安苏试广博环境可靠性实验室有限公司 | Temperature stress accelerated life test system and method for sensor |
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| JP2002340961A (en) * | 2001-05-17 | 2002-11-27 | Advantest Corp | Contact point life diagnosis method |
| CN2620283Y (en) * | 2003-06-03 | 2004-06-09 | 南京大学 | Automatic fast measurer for relay |
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| CN204065353U (en) * | 2014-08-20 | 2014-12-31 | 芜湖美的厨卫电器制造有限公司 | relay life test device |
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| US20140002093A1 (en) * | 2012-06-27 | 2014-01-02 | Leviton Manufacturing Co., Inc. | Relay contact monitoring and control |
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| JP2002340961A (en) * | 2001-05-17 | 2002-11-27 | Advantest Corp | Contact point life diagnosis method |
| CN2620283Y (en) * | 2003-06-03 | 2004-06-09 | 南京大学 | Automatic fast measurer for relay |
| CN101344575A (en) * | 2008-08-20 | 2009-01-14 | 哈尔滨工业大学 | Relay reliability service life experiment system based on dynamic characteristic |
| CN103226180A (en) * | 2012-01-31 | 2013-07-31 | 哈尔滨建成集团有限公司 | Testing system for electronic delayers |
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| CN105548877A (en) | 2016-05-04 |
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