CN108319252A - A kind of Compressor Failure Detection device and method - Google Patents
A kind of Compressor Failure Detection device and method Download PDFInfo
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- CN108319252A CN108319252A CN201810021748.8A CN201810021748A CN108319252A CN 108319252 A CN108319252 A CN 108319252A CN 201810021748 A CN201810021748 A CN 201810021748A CN 108319252 A CN108319252 A CN 108319252A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- Automation & Control Theory (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a kind of Compressor Failure Detection device and method, which includes：Main control chip；GPIO circuits are electrically connected in the main control chip and preset compressor；Pwm circuit is electrically connected in the main control chip and the compressor；CAN circuit is electrically connected in the main control chip and the compressor；Serial port circuit is electrically connected in the main control chip and the compressor.The beneficial effects of the practice of the present invention：Keep compressor test more comprehensive and improve detection efficiency, compatible a variety of test modes can access multiple instruction input port.
Description
Technical field
The present invention relates to compressor ageing management technical field more particularly to a kind of Compressor Failure Detection device and sides
Method.
Background technology
Compressor (compressor) is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is
The heart of refrigeration system.It from air intake duct suck low-temp low-pressure refrigerant gas, by motor operate band piston to its into
After row compression, the refrigerant gas of high temperature and pressure is discharged to exhaust pipe, power is provided for refrigeration cycle.
Compressor after operating for a long time, component wear, and gap increases, suction function reduction, last even without suction work(
Energy.Easily lead to insufficient pressure, refrigerating capacity is inadequate, and operating current is less than normal, and height pressure difference is small.
The prior art carries out the aging of product to that in the fault detect of compressor, generally can only send to instruct by can buses,
GPIO signals, pwm signal circuit and 485 serial communication circuits can not be detected；Compressor speed governing, Zhi Nengding can not be carried out when aging
Speed operation；It can not carry out acceleration and deceleration test.Therefore traditional aged compression machine fault detect has a disadvantage that：
1, CAN instructions can only be received, other common modes of speed regulation can not be compatible with；
2, whether normal if you need to verify other circuits, it needs individually to test.
Invention content
The purpose of the present invention is to provide a kind of Compressor Failure Detection device and methods, solve compressor in the prior art
Fault detect can receive CAN instructions, can not be compatible with other common modes of speed regulation；It is whether normal if you need to verify other circuits, it needs
The problem of individually testing.
Technical scheme of the present invention is realized as follows：
On the one hand, the present invention provides a kind of Compressor Failure Detection device, including：
Main control chip；
GPIO circuits are electrically connected in the main control chip and preset compressor；
Pwm circuit is electrically connected in the main control chip and the compressor；
CAN circuit is electrically connected in the main control chip and the compressor；
Serial port circuit is electrically connected in the main control chip and the compressor.
In Compressor Failure Detection device of the present invention, the GPIO circuits include photoelectrical coupler, diode,
Voltage input end, signal input part, the first signal output end and second signal output end, the voltage input end access voltage is simultaneously
It is electrically connected at the first end of the photoelectrical coupler, the second end of the photoelectrical coupler empties, the signal input part point
It is not connected to the third end of the main control chip and the photoelectrical coupler, the diode is connected to the photoelectrical coupler
Between 4th end and the 6th end, the 5th end of the photoelectrical coupler is connected to the compression by first signal output end
Machine, the second signal output end are connected to the 6th end of photoelectrical coupler.
In Compressor Failure Detection device of the present invention, the pwm circuit includes pulse generating device, the first electricity
Press input terminal, second voltage input terminal, pulse input end, pulse output end and diode, the first voltage input terminal connection
In the first end of the pulse generating device, the pulse input end is connected to the second end of the pulse generating device, described
Second voltage input terminal is connected to one end of diode, and the other end of diode is connected to the third of the pulse generating device
End, the third end of the pulse generating device is additionally coupled to the pulse output end；The pulse input end is connected to the master
Chip is controlled, the pulse output end is connected to the compressor.
In Compressor Failure Detection device of the present invention, the CAN circuit includes CAN receiving terminals, CAN transmittings
End, CAN chips, the first sending and receiving end and the second sending and receiving end, the CAN chips are connected to the CAN receiving terminals, the CAN
Transmitting terminal, first sending and receiving end and second sending and receiving end；The CAN receiving terminals and the CAN transmitting terminals are connected to described
Main control chip, first sending and receiving end and second sending and receiving end are connected to the compressor.
In Compressor Failure Detection device of the present invention, the serial port circuit includes serial port chip, serial ports first
End, serial ports second end, serial ports third end, the 4th end of serial ports, serial ports ontology and diode group, the serial port chip are connected to
The serial ports first end and the serial ports second end, the serial ports second end are connected to serial ports third end, the serial ports
Three ends are connected to the 4th end of the serial ports, and the 4th end of the serial ports includes anode and cathode, is connected between the anode and cathode
There are the diode group, the 4th end of the serial ports to be connected to the compressor by interface, the serial ports first end is connected to institute
State main control chip.
On the other hand, a kind of Compressor Failure Detection method is provided, using Compressor Failure Detection device as described above,
Including：
Fault detect is carried out to compressor by GPIO circuits and pwm circuit：When the compressor shutdown preset first
After time, controls the GPIO circuits and high level is exported to the compressor and week is exported to the compressor by pwm circuit
Phase is the speed-regulating signal of preset second time, and controls the speed-regulating signal in preset third by the pwm circuit
In from preset first change in duty cycle be preset second duty ratio, when the duty ratio of the speed-regulating signal reaches described the
Maintain preset 4th time when two duty ratios, then by the duty ratio of the speed-regulating signal within the third time from described
Two change in duty cycle are that first duty ratio controls the GPIO circuits to the compressor after maintaining the 4th time
Low level is exported, the rotating speed that the compressor is controlled by the pwm circuit accelerates to preset first rev/min and remains pre-
If the 5th time, by the rotating speed of the compressor from described first rev/min variation be preset second rev/min, and will
Second rev/min of the rotating speed is shut down after maintaining preset 6th time；
Fault detect is carried out to the compressor by CAN circuit：Compressor output is turned by the CAN circuit
Speed instruction from described first rev/min within preset 7th time changing the rotating speed of the compressor for described second
Rev/min, it is shut down after second rev/min of the rotating speed is maintained at preset 8th time；
Fault detect is carried out to the compressor by serial port circuit：When the compressor shutdown preset 9th time
Afterwards, by the serial port circuit to the compressor send power-on instruction and by the rotating speed of the compressor from described first turn/
Minute variation within preset tenth time is described second rev/min, second rev/min of the rotating speed is maintained at default
Eleventh time after shut down.
In Compressor Failure Detection method of the present invention, it is described by GPIO circuits and pwm circuit to compressor
Fault detect is carried out, further includes：
If the compressor does not work, fault detect is carried out to the compressor by CAN circuit and passes through serial port circuit
It is normal that fault detect is carried out to the compressor, it is determined that the GPIO faults；
If the rotating speed of the compressor can not position at described first rev/min or second rev/min described, it is determined that institute
State pwm circuit failure.
It is described that event is carried out to the compressor by CAN circuit in Compressor Failure Detection method of the present invention
Barrier detects, and further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through string
It is normal that mouth circuit carries out fault detect to the compressor, it is determined that the CAN circuit failure.
It is described that event is carried out to the compressor by serial port circuit in Compressor Failure Detection method of the present invention
Barrier detects, and further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through CAN
It is normal that circuit carries out fault detect to the compressor, it is determined that the serial port circuit failure.
In Compressor Failure Detection method of the present invention, further include：
If by GPIO circuits and pwm circuit to compressor progress fault detect, by serial port circuit to the compressor
Carry out fault detect and by CAN circuit to the compressor carry out fault detect it is abnormal, it is determined that in the compressor
The driving circuit and/or sample circuit failure in portion.
Therefore, the invention has the advantages that keeping compressor test more comprehensive and improving detection efficiency, compatibility is a variety of
Test mode can access multiple instruction input port.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is a kind of structure diagram for Compressor Failure Detection device that one embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the main control chip that one embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for the GPIO circuits that one embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the pwm circuit that one embodiment of the invention provides；
Fig. 5 is the structural schematic diagram for the CAN circuit that one embodiment of the invention provides；
Fig. 6 is the structural schematic diagram for the serial port circuit that one embodiment of the invention provides.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, will to compare attached drawing below detailed
Illustrate the specific implementation mode of the present invention.It should be appreciated that following explanation is only being specifically described for the embodiment of the present invention, it should not be with this
It limits the scope of the invention.
Referring to Fig. 1, Fig. 1 is a kind of structure diagram for Compressor Failure Detection device that one embodiment of the invention provides, pressure
Contracting machine failure detector includes main control chip, GPIO circuits, pwm circuit, CAN circuit and serial port circuit.GPIO circuits are distinguished
It is electrically connected at the main control chip and preset compressor, pwm circuit is electrically connected in the main control chip and described
Compressor, CAN circuit are electrically connected in the main control chip and the compressor, and serial port circuit is electrically connected in institute
State main control chip and the compressor.
Referring to Fig. 2, Fig. 2 is the structural schematic diagram for the main control chip that one embodiment of the invention provides, and main control chip model is excellent
It is selected as TMS320F28031, including pin ONOFF-C, PWM-C, SCIRXD, SCITXD, SCITXDE, CANTXD and CANRXD.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram for the GPIO circuits that one embodiment of the invention provides, the GPIO circuits packet
Include photoelectrical coupler U3, diode D4, voltage input end (+3.3V), signal input part ONOFF-C, the first signal output end
ONOFF and second signal output end OUT, the voltage input end access voltage and are electrically connected at the of the photoelectrical coupler
The second end of one end, the photoelectrical coupler empties, and the signal input part is connected to the main control chip and the light
The third end of electric coupler, the diode are connected between the 4th end and the 6th end of the photoelectrical coupler, the photoelectricity
5th end of coupler is connected to the compressor by first signal output end, and the second signal output end is connected to
6th end of photoelectrical coupler.The model of photoelectrical coupler is preferably ACPL-P314.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram for the pwm circuit that one embodiment of the invention provides；The pwm circuit includes
Pulse generating device U16, first voltage input terminal (+3.3V), second voltage input terminal (+12V), pulse input end PWM-C, arteries and veins
Output end PWM and diode D5 is rushed, the first voltage input terminal is connected to the first end of the pulse generating device, the arteries and veins
The second end that input terminal is connected to the pulse generating device is rushed, the second voltage input terminal is connected to one end of diode,
The other end of diode is connected to the third end of the pulse generating device, and the third end of the pulse generating device is additionally coupled to
The pulse output end；The pulse input end is connected to the main control chip, and the pulse output end is connected to the compression
Machine.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram for the CAN circuit that one embodiment of the invention provides；The CAN circuit includes
CAN receiving terminal CANRXD, CAN transmitting terminal CANTXD, CAN chips U27, the first sending and receiving end CAN-H and the second sending and receiving end CAN-L
(CAN-H and CAN-L are a pair of of complementary signals, can receive or send out, two-way), the CAN chips are connected to institute
State CAN receiving terminals, the CAN transmitting terminals, first sending and receiving end and second sending and receiving end；CAN receiving terminals and described
CAN transmitting terminals are connected to the main control chip, and first sending and receiving end and second sending and receiving end are connected to the compressor.
The model of CAN chips is preferably R-PDSO-G8ISO1050DUB.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram for the serial port circuit that one embodiment of the invention provides；The serial port circuit packet
Include serial port chip U12, serial ports first end (SCITXD, SCITXDE, CANTXD), serial ports second end (+3.3V, GND, A0, B0),
Serial ports third end (+3.3V, GND, A0, B0), the 4th end (A0+, B0-) of serial ports, serial ports ontology J2 and diode group (D43,
D42), the serial port chip is connected to the serial ports first end and the serial ports second end, the serial ports second end connection
In serial ports third end, serial ports third end is connected to the 4th end of the serial ports, and the 4th end of the serial ports includes anode A0+
And cathode B0-, it is connected with the diode group between the anode and cathode, the 4th end of the serial ports is connected to institute by interface
Compressor is stated, the serial ports first end is connected to the main control chip.The model of serial port chip is preferably ISL3172EUBZ.
On the other hand, a kind of Compressor Failure Detection method is provided, using Compressor Failure Detection device as described above,
Including three kinds of detecting step S1-S3：
S1, fault detect is carried out to compressor by GPIO circuits and pwm circuit：When the compressor shutdown preset
After one time, controls the GPIO circuits and high level is exported to the compressor and the compressor is exported by pwm circuit
Period is the speed-regulating signal of preset second time, and controls the speed-regulating signal in preset third by the pwm circuit
From preset first change in duty cycle it is preset second duty ratio in time, when the duty ratio of the speed-regulating signal reaches described
Maintain preset 4th time when the second duty ratio, then by the duty ratio of the speed-regulating signal within the third time from described
Second change in duty cycle is that first duty ratio controls the GPIO circuits to the compression after maintaining the 4th time
Machine exports low level, and the rotating speed that the compressor is controlled by the pwm circuit accelerates to preset first rev/min and maintains
Preset 5th time, it is preset second rev/min that the rotating speed of the compressor is changed from described first rev/min, and
It is shut down after second rev/min of the rotating speed is maintained preset 6th time；Such as：After shutting down 30 seconds, the high electricity of GPIO outputs
Flat, the period is 20 delicate PWM speed-regulating signals is gradually varied to 90% duty ratio in 5 seconds from 10% duty ratio, when duty ratio reaches
It is maintained 3 minutes to when 90%, then duty ratio is gradually become 10% out of 90%5 second, then GPIO exports low electricity after maintaining 3 minutes
It is flat.Compressor accelerates to 6000 turns per minute from another rotating speed and maintains 3 minutes in the process, then is reduced to by 6000 turns per minute
It 1000 turns per minute, is shut down after transporting row 3 minutes with per minute 1000.
S2, fault detect is carried out to the compressor by CAN circuit：It is defeated to the compressor by the CAN circuit
Go out rotary speed instruction with by the rotating speed of the compressor from described first rev/min within preset 7th time variation be described the
It two revs/min, is shut down after second rev/min of the rotating speed is maintained at preset 8th time；Such as：CAN sends booting
Instruction, rotary speed instruction accelerate to 6000 turns per minute in 5 seconds from 1000 turns per minute, after rotating speed reaches 6000 turns per minute,
It maintains rotating speed three minutes, shuts down.
S3, fault detect is carried out to the compressor by serial port circuit：When the compressor shutdown it is preset 9th when
Between after, power-on instruction is sent and by the rotating speed of the compressor from described first to the compressor by the serial port circuit
Variation is described second rev/min rev/min within preset tenth time, and second rev/min of the rotating speed is maintained at
Preset tenth a period of time shuts down after asking.Such as：After shutting down 30 seconds, power-on instruction is sent by 485 serial ports, rotary speed instruction is from every point
1000 turns of clock accelerates to 6000 turns per minute in 5 seconds, after rotating speed reaches 6000 turns per minute, maintains rotating speed three minutes, shuts down.
Step S1 further includes：
If the compressor does not work, fault detect is carried out to the compressor by CAN circuit and passes through serial port circuit
It is normal that fault detect is carried out to the compressor, it is determined that the GPIO faults；Even PWM mode sends power-on instruction
Compressor does not work, and other either types can work, and judges GPIO partial circuit failures.
If the rotating speed of the compressor can not position at described first rev/min or second rev/min described, it is determined that institute
State pwm circuit failure.Even PWM mode sends power-on instruction compressor rotary speed and is unable to maintain that in rotating speed 6000 turns or every per minute
1000 turns of minute then judges PWM section fault.
Step S2 further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through string
It is normal that mouth circuit carries out fault detect to the compressor, it is determined that the CAN circuit failure.Even CAN patterns transmission is opened
Compressor does not work when machine instructs, and other either types can work, and judge that CAN bus circuit is faulty.
Step S3 further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through CAN
It is normal that circuit carries out fault detect to the compressor, it is determined that the serial port circuit failure.Even serial ports pattern transmission is opened
Machine instruction compression machine does not work, and other either types can work, and judges serial ports partial circuit failure.
Preferably, Compressor Failure Detection method further includes step S4：
S4, if fault detect is carried out to compressor by GPIO circuits and pwm circuit, by serial port circuit to the compression
Machine carry out fault detect and by CAN circuit to the compressor carry out fault detect it is abnormal, it is determined that the compressor
Internal driving circuit and/or sample circuit failure.Even three kinds of mode compressors do not work, illustrate that internal drive is driven
Dynamic circuit or sampling section are faulty.
There is provided herein the various operations of embodiment.In one embodiment, described one or operation may be constructed one
The computer-readable instruction stored on a or computer-readable medium, will be so that computing device be held when being executed by electronic equipment
The row operation.Describing the sequences of some or all of operations, to should not be construed as to imply that these operations necessarily order dependent
's.It will be appreciated by those skilled in the art that the alternative sequence of the benefit with this specification.Furthermore, it is to be understood that not being institute
There is operation that must exist in each embodiment provided in this article.
Moreover, word " preferred " used herein means serving as example, example or illustration.Feng Wen is described as " preferably
" any aspect or design be not necessarily to be construed as than other aspect or design it is more advantageous.On the contrary, the use purport of word " preferred "
Concept is being proposed in specific ways.Term "or" as used in this application is intended to mean the "or" for including and non-excluded
"or".That is, unless specified otherwise or clear from the context, " X uses A or B " means that nature includes any one of arrangement.
That is, if X uses A；X uses B；Or X uses A and B both, then " X uses A or B " is met in aforementioned any example.
Moreover, although the disclosure, people in the art has shown and described relative to one or realization method
Member will be appreciated that equivalent variations and modification based on the reading and understanding to the specification and drawings.The disclosure includes all such
Modifications and variations, and be limited only by the scope of the following claims.In particular, to by said modules (such as element, resource
Deng) various functions that execute, the term for describing such component is intended to correspond to the specified function (example for executing the component
As it is functionally of equal value) random component (unless otherwise instructed), even if in structure with execute shown in this article
The open structure of function in disclosed exemplary implementations is not equivalent.In addition, although the special characteristic of the disclosure phase
Only one in several realization methods is disclosed, but this feature can with such as can be for given or specific application
It is it is expected and one of other advantageous realization methods or the combination of other features.Moreover, with regard to term " comprising ", " having ", " containing
Have " or its deformation be used in specific implementation mode or claim for, such term be intended to with term " include " phase
As mode include.
Each functional unit in the embodiment of the present invention can be integrated in a processing module, can also be each unit list
Solely be physically present, can also two or more units be integrated in a module.Above-mentioned integrated module both may be used
The form of hardware is realized, can also be realized in the form of software function module.If the integrated module is with software function
The form of module is realized and when sold or used as an independent product, can also be stored in a computer-readable storage and be situated between
In matter.Storage medium mentioned above can be read-only memory, disk or CD etc..Above-mentioned each device or system, can be with
Execute the method in correlation method embodiment.
In conclusion although the present invention is disclosed above with preferred embodiment, above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention is subject to the range that claim defines.
Claims (10)
1. a kind of Compressor Failure Detection device, which is characterized in that including：
Main control chip；
GPIO circuits are electrically connected in the main control chip and preset compressor；
Pwm circuit is electrically connected in the main control chip and the compressor；
CAN circuit is electrically connected in the main control chip and the compressor；
Serial port circuit is electrically connected in the main control chip and the compressor.
2. Compressor Failure Detection device according to claim 1, which is characterized in that the GPIO circuits include photoelectricity coupling
Clutch, diode, voltage input end, signal input part, the first signal output end and second signal output end, the control source
The first end of the photoelectrical coupler is terminated into voltage and is electrically connected at, the second end of the photoelectrical coupler empties, described
Signal input part is connected to the third end of the main control chip and the photoelectrical coupler, and the diode is connected to described
Between 4th end of photoelectrical coupler and the 6th end, the 5th end of the photoelectrical coupler is connected by first signal output end
It is connected to the compressor, the second signal output end is connected to the 6th end of photoelectrical coupler.
3. Compressor Failure Detection device according to claim 1, which is characterized in that the pwm circuit includes pulse production
Generating apparatus, first voltage input terminal, second voltage input terminal, pulse input end, pulse output end and diode, first electricity
Pressure input terminal is connected to the first end of the pulse generating device, and the pulse input end is connected to the pulse generating device
Second end, the second voltage input terminal are connected to one end of diode, and the other end of diode is connected to the pulse and generates
The third end at the third end of device, the pulse generating device is additionally coupled to the pulse output end；The pulse input end connects
It is connected to the main control chip, the pulse output end is connected to the compressor.
4. Compressor Failure Detection device according to claim 1, which is characterized in that the CAN circuit includes that CAN is received
End, CAN transmitting terminals, CAN chips, the first sending and receiving end and the second sending and receiving end, the CAN chips are connected to the CAN and receive
End, the CAN transmitting terminals, first sending and receiving end and second sending and receiving end；The CAN receiving terminals and the CAN transmitting terminals
It is connected to the main control chip, first sending and receiving end and second sending and receiving end are connected to the compressor.
5. Compressor Failure Detection device according to claim 1, which is characterized in that the serial port circuit includes serial ports core
Piece, serial ports first end, serial ports second end, serial ports third end, the 4th end of serial ports, serial ports ontology and diode group, the serial ports core
Piece is connected to the serial ports first end and the serial ports second end, and the serial ports second end is connected to the serial ports third
End, serial ports third end are connected to the 4th end of the serial ports, and the 4th end of the serial ports includes anode and cathode, the anode and
The diode group is connected between cathode, the 4th end of the serial ports is connected to the compressor, the serial ports by interface
One end is connected to the main control chip.
6. a kind of Compressor Failure Detection method, using Compressor Failure Detection device as described in any one in claim 1-5,
It is characterised in that it includes：
Fault detect is carried out to compressor by GPIO circuits and pwm circuit：When the compressor shutdown preset first time
Afterwards, the GPIO circuits are controlled to export high level to the compressor and be to the compressor output period by pwm circuit
The speed-regulating signal of preset second time, and the speed-regulating signal is controlled within the preset third time by the pwm circuit
It is preset second duty ratio from preset first change in duty cycle, is accounted for when the duty ratio of the speed-regulating signal reaches described second
Sky than when maintain preset 4th time, then the duty ratio of the speed-regulating signal is accounted within the third time from described second
It is empty to control the GPIO circuits after maintaining the 4th time for first duty ratio than changing and the compressor is exported
Low level, the rotating speed that the compressor is controlled by the pwm circuit accelerate to preset first rev/min and remain preset
5th time, it is preset second rev/min that the rotating speed of the compressor is changed from described first rev/min, and will be described
Second rev/min of rotating speed is shut down after maintaining preset 6th time；
Fault detect is carried out to the compressor by CAN circuit：Rotating speed is exported by the CAN circuit to the compressor to refer to
It enables changing the rotating speed of the compressor for described second rev/min within preset 7th time from described first rev/min
Clock is shut down after second rev/min of the rotating speed is maintained at preset 8th time；
Fault detect is carried out to the compressor by serial port circuit：After the compressor shutdown preset nine time, lead to
Cross the serial port circuit to the compressor send power-on instruction and by the rotating speed of the compressor from described first rev/min
Variation is described second rev/min in preset tenth time, and second rev/min of the rotating speed is maintained at the preset tenth
It is shut down after one time.
7. Compressor Failure Detection method according to claim 6, which is characterized in that described to pass through GPIO circuits and PWM
Circuit carries out fault detect to compressor, further includes：
If the compressor does not work, fault detect is carried out and by serial port circuit to institute to the compressor by CAN circuit
It is normal to state compressor progress fault detect, it is determined that the GPIO faults；
If the rotating speed of the compressor can not position at described first rev/min or second rev/min described, it is determined that it is described
Pwm circuit failure.
8. Compressor Failure Detection method according to claim 6, which is characterized in that it is described by CAN circuit to described
Compressor carries out fault detect, further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through serial port power
It is normal that road carries out fault detect to the compressor, it is determined that the CAN circuit failure.
9. Compressor Failure Detection method according to claim 6, which is characterized in that it is described by serial port circuit to described
Compressor carries out fault detect, further includes：
If the compressor does not work, fault detect is carried out to compressor by GPIO circuits and pwm circuit and passes through CAN circuit
It is normal that fault detect is carried out to the compressor, it is determined that the serial port circuit failure.
10. according to claim 6-9 any one of them Compressor Failure Detection methods, which is characterized in that further include：
If carrying out fault detect to compressor by GPIO circuits and pwm circuit, being carried out to the compressor by serial port circuit
Fault detect and by CAN circuit to the compressor carry out fault detect it is abnormal, it is determined that inside the compressor
Driving circuit and/or sample circuit failure.
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|---|---|---|---|
| CN201810021748.8A CN108319252B (en) | 2018-01-09 | 2018-01-09 | Compressor fault detection device and method |
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|---|---|---|---|
| CN201810021748.8A CN108319252B (en) | 2018-01-09 | 2018-01-09 | Compressor fault detection device and method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227164A (en) * | 2007-11-28 | 2008-07-23 | 海信集团有限公司 | Direct current compressor drive circuit |
| CN102700481A (en) * | 2012-05-08 | 2012-10-03 | 中国第一汽车股份有限公司 | Control method and device for air conditioning compressor and heater of electric automobile |
| JP2015063993A (en) * | 2013-09-16 | 2015-04-09 | ゼネラル・エレクトリック・カンパニイ | Compressor blade monitoring system |
| CN106940558A (en) * | 2017-02-24 | 2017-07-11 | 武汉理工大学 | Electric automobile electric air-conditioning compressor controller development platform |
| CN107479538A (en) * | 2017-09-14 | 2017-12-15 | 苏州新智机电工业有限公司 | A kind of motor compressor trouble-shooter |
-
2018
- 2018-01-09 CN CN201810021748.8A patent/CN108319252B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227164A (en) * | 2007-11-28 | 2008-07-23 | 海信集团有限公司 | Direct current compressor drive circuit |
| CN102700481A (en) * | 2012-05-08 | 2012-10-03 | 中国第一汽车股份有限公司 | Control method and device for air conditioning compressor and heater of electric automobile |
| JP2015063993A (en) * | 2013-09-16 | 2015-04-09 | ゼネラル・エレクトリック・カンパニイ | Compressor blade monitoring system |
| CN106940558A (en) * | 2017-02-24 | 2017-07-11 | 武汉理工大学 | Electric automobile electric air-conditioning compressor controller development platform |
| CN107479538A (en) * | 2017-09-14 | 2017-12-15 | 苏州新智机电工业有限公司 | A kind of motor compressor trouble-shooter |
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| CN108319252B (en) | 2020-01-14 |
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