CN112930274A - Method for diagnosing abnormality of electric compressor of vehicle - Google Patents
Method for diagnosing abnormality of electric compressor of vehicle Download PDFInfo
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- CN112930274A CN112930274A CN201980004025.XA CN201980004025A CN112930274A CN 112930274 A CN112930274 A CN 112930274A CN 201980004025 A CN201980004025 A CN 201980004025A CN 112930274 A CN112930274 A CN 112930274A
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- 230000005856 abnormality Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003507 refrigerant Substances 0.000 claims abstract description 98
- 230000002159 abnormal effect Effects 0.000 claims abstract description 20
- 238000004378 air conditioning Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 230000007257 malfunction Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3225—Cooling devices using compression characterised by safety arrangements, e.g. compressor anti-seizure means or by signalling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00985—Control systems or circuits characterised by display or indicating devices, e.g. voice simulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3257—Cooling devices information from a variable is obtained related to temperature of the refrigerant at a compressing unit
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
There is provided a method for diagnosing an abnormality of an electric compressor of a vehicle, the method including: performing a compressor temperature detecting operation by measuring a temperature of a suction refrigerant sucked into a compressor main body via an evaporator and a temperature of a discharge refrigerant discharged from the compressor main body to a condenser using a first temperature sensor when an air conditioning device is operated, and then comparing the measured temperatures; performing an inverter temperature detecting operation by measuring a temperature of an inverter located in an inverter case disposed at one side of the compressor main body using a second temperature sensor when the measured temperature of the suction refrigerant is higher than the measured temperature of the discharge refrigerant in the compressor temperature detecting operation; determining abnormality of the electric compressor by comparing the inverter temperature measured through the inverter temperature detecting operation with a preset set temperature by a microprocessor; and stopping the operation of the air conditioner when the microprocessor determines that the electric compressor is abnormal.
Description
Technical Field
The present disclosure relates to a method for diagnosing an abnormality of a vehicle electric compressor, and particularly, to a method for diagnosing an abnormality of a vehicle electric compressor, in which a problem that a portion of a compressed refrigerant in a compression chamber of the electric compressor leaks to a suction (suction) side due to abrasion, damage, or the like of a package, so that a temperature of a suction unit is abnormally increased, may be determined.
Background
Referring to the background art disclosed in KR 2009-.
As shown in fig. 1, the air conditioner includes a compressor 1, a condenser 3, an expansion valve 5, and an evaporator 7 connected to each other by a pipe 8, and refrigerant circulates in the compressor 1, the condenser, the expansion valve 5, and the evaporator 7 through the pipe 8.
In other words, the compressor 1 is driven by the engine of the vehicle to compress and discharge the filled refrigerant to a high-temperature and high-pressure gaseous state. Then, the condenser 3 forcibly exchanges heat of the refrigerant gas compressed by the compressor 1 with the outside air, so that the refrigerant gas is converted into a refrigerant of a high-pressure liquid state and having a temperature close to that of the outside air. The refrigerant converted into a liquid state by the condenser 3 is converted into a low-temperature low-pressure liquid refrigerant due to resistance when passing through the expansion valve 5 including a fine capillary tube.
The low-temperature and low-pressure liquid refrigerant enters the evaporator 7, and is heat-exchanged by absorbing heat from the environment by the blower 9 installed near the evaporator 7, and then is sent again to the compressor 1 to repeat the cycle.
The compressor 1 of such an air conditioning device is operated by a driving source (such as an engine or a motor of a vehicle) and suffers from a failure of various factors due to the nature of being installed in a narrow vehicle running at a high speed. In order to check and diagnose a malfunction of an air conditioner of a vehicle, various checking and diagnosing methods are used based on the cause and area of the malfunction, and KR 10-1796947 discloses an automatic malfunction alerting device of an air conditioner of a vehicle.
Since the automatic malfunction alerting device of an air conditioner of a vehicle determines malfunction of each region by receiving a contact signal of the corresponding region of the air conditioning system of the vehicle, when an abnormality is not generated in the contact signal of each region due to leakage of refrigerant from compression portions of a fixed scroll and a driven scroll due to damage of a scroll wrap (scroll) inside a compressor, it is impossible to check an increase in internal temperature of the compressor and deterioration of performance of the compressor, which occur when the compressed refrigerant is reintroduced and recompressed in a suction region of the compressor.
Description of the embodiments
Technical problem
The present disclosure is made to solve the above-mentioned problems and has an object to provide a method for diagnosing an abnormality of an electric compressor of a vehicle, in which a temperature of a suction refrigerant sucked into a compressor main body and a temperature of a discharge refrigerant discharged from the compressor main body are compared by using a temperature sensor, and the abnormality of the compressor can be easily diagnosed by measuring a temperature of an inverter located in an inverter box, thereby preventing a vehicle starting problem that may occur due to the abnormality of the compressor.
Solution to the problem
According to an aspect of the present disclosure, there is provided a method for diagnosing an abnormality of a motor-driven compressor of a vehicle, the method including: performing a compressor temperature detecting operation by measuring a temperature of a suction refrigerant sucked into the compressor main body via the evaporator and a temperature of a discharge refrigerant discharged from the compressor main body to the condenser using the first temperature sensor when the air conditioning device is operated, and then comparing the measured temperatures; performing an inverter temperature detecting operation by measuring a temperature of an inverter inside an inverter case provided at one side of a compressor main body using a second temperature sensor when a measured temperature of a suction refrigerant is higher than a temperature of a discharge refrigerant in the compressor temperature detecting operation; determining abnormality of the electric compressor by comparing the inverter temperature measured through the inverter temperature detecting operation with a preset set temperature by the microprocessor; and stopping the operation of the air conditioner when the microprocessor determines that the electric compressor is abnormal.
The suction refrigerant temperature and the discharge refrigerant temperature measured in the compressor temperature sensing operation may be transmitted to the microprocessor, and the first temperature sensor may include: a suction refrigerant temperature sensor for measuring a temperature of a suction refrigerant sucked from the evaporator to the compressor main body; and a discharge refrigerant temperature sensor for measuring a temperature of a discharge refrigerant discharged from the compressor body to the condenser, and the microprocessor determines that the electric compressor is normal and operates the air conditioner when a temperature of a suction refrigerant measured by the suction refrigerant temperature sensor is lower than a temperature of a discharge refrigerant measured by the discharge refrigerant temperature sensor.
The microprocessor may determine that the motor-driven compressor is normal and operate the air conditioner when the inverter temperature measured in the inverter temperature detecting operation, in which the set temperature of the inverter may be 120 ℃, is lower than the set temperature.
The microprocessor may operate the air conditioner when a suction refrigerant temperature measured by a suction refrigerant temperature sensor of the first temperature sensor is lower than a discharge refrigerant temperature measured by a discharge refrigerant temperature sensor of the first temperature sensor, and measure a temperature of the inverter by using the second temperature sensor when the suction refrigerant temperature measured by the suction refrigerant temperature sensor is higher than the discharge refrigerant temperature measured by the discharge refrigerant temperature sensor, and operate the air conditioner when the temperature of the inverter measured by the second temperature sensor is lower than a set temperature, and may stop the operation of the electric compressor and the operation of the air conditioner by determining that the electric compressor is abnormal when the inverter temperature measured by the second temperature sensor is higher than the set temperature.
The method may further include transmitting, by the microprocessor, the abnormal operation of the electric compressor to the storage device when the electric compressor is determined to be abnormal, the storage device storing the abnormal operation, and transmitting, by the microprocessor, the abnormality of the electric compressor to a passenger when the vehicle is started.
Transmitting the abnormality of the motor-driven compressor to the passenger may include notifying the passenger of the abnormality of the motor-driven compressor through a connected display unit when the microprocessor determines that the motor-driven compressor is abnormal, wherein the display unit may be provided on a dashboard of the vehicle.
Advantageous effects of the disclosure
According to the method for diagnosing an abnormality of an electric compressor of a vehicle of the present disclosure, by comparing a suction refrigerant temperature sucked to a compressor main body and a discharge refrigerant temperature discharged from the compressor main body using a first temperature sensor, the abnormality of the electric compressor can be easily diagnosed, and then, when the suction refrigerant temperature is high, measuring a temperature of an inverter located inside an inverter box using a second temperature sensor and comparing the temperature of the inverter with a preset set temperature, and by storing the diagnosis result in a storage device and notifying an abnormality to a passenger to repair the compressor and the air conditioner, a vehicle starting problem that may occur is preventable.
Drawings
Fig. 1 is a schematic configuration diagram of a general vehicle air conditioner.
Fig. 2 is a flowchart of a method for diagnosing an abnormality of an electric compressor of a vehicle according to the present disclosure.
Fig. 3 is a schematic diagram of a configuration of an air conditioner that performs a method for diagnosing an abnormality of a vehicle electric compressor according to the present disclosure, which is schematically illustrated.
Fig. 4 is a graph showing a temperature of a suction refrigerant sucked during an abnormality of a compressor main body and a temperature of a discharge refrigerant to be discharged from the compressor main body to a condenser as a function of time.
Best mode for carrying out the invention
Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Here, the terms and words used in the specification and claims should not be construed as being limited to general or dictionary meanings, but should be construed as meanings and concepts corresponding to technical ideas of the present disclosure, based on the principle that an inventor can appropriately define the concept of the term to best explain the present invention.
Referring to fig. 2, a method for diagnosing an abnormality of an electric compressor of a vehicle according to an embodiment of the present disclosure includes: when the air conditioning apparatus is operated, a compressor temperature detecting operation is performed by measuring a temperature of a suction refrigerant sucked to the compressor main body and a temperature of a discharge refrigerant discharged from the compressor main body to the outside using the first temperature sensor, and then comparing the measured temperatures (operation S10), an inverter temperature detecting operation is performed by measuring a temperature of the inverter using the second temperature sensor (operation 20), an abnormality of the electric compressor is determined by the microprocessor (operation 30), and the operation of the air conditioning apparatus is stopped by the microprocessor (operation 40), and may further include storing the abnormality of the electric compressor in a storage device when the abnormality of the electric compressor is determined and transmitting the abnormality of the electric compressor to a passenger when the vehicle is started (operation 50).
Referring to fig. 3, in the air conditioning device 10 performing the method for diagnosing the abnormality of the electric compressor of the vehicle according to the present disclosure, the compressor 20, the condenser 30, the expansion valve 40, and the evaporator 50 are connected to each other via a refrigerant pipe P, an inverter 70 is provided at one side of the compressor 20, and the refrigerant entering the evaporator 50 is sent to the compressor 20 by a blower 60 installed near the evaporator 50 after a heat exchange action of absorbing heat from the environment.
The compressor 20 is driven by an engine of the vehicle to compress refrigerant filled therein after being sucked through the evaporator 50 and the blower 60 to a gaseous state of high temperature and high pressure, and discharge the refrigerant to the condenser 30.
The condenser 30 condenses the refrigerant in a gaseous state at high temperature and high pressure discharged from the compressor 20 into a liquid state at high pressure and at a temperature similar to that of the outside air by forcibly exchanging heat with the outside air. The refrigerant in a high-pressure liquid state condensed by the condenser 30 and at an outside air temperature is converted into a low-temperature and low-pressure liquid refrigerant by the expansion valve 40, moves to the evaporator 50, and is then supplied to the condenser 20 after being heat-exchanged by the blower 60.
Referring to fig. 2 and 3, the compressor temperature detecting operation (operation 10) is performed as follows: when the air conditioner 10 is operated, the temperature of the suction refrigerant sucked into the main body of the compressor 20 via the evaporator 50 and the temperature of the discharge refrigerant discharged from the inside of the main body of the compressor 20 to the condenser 30 are measured using the first temperature sensor 100, and then the measured temperatures are compared.
The first temperature sensor 100 is provided at the main body of the compressor 20, and the first temperature sensor 100 may include: a suction refrigerant temperature sensor 110 for measuring a temperature of a suction refrigerant sucked into a main body of the compressor 20; and a discharge refrigerant temperature sensor 120 for measuring a temperature of the discharge refrigerant discharged from the body of the compressor 20 to the condenser 30.
The temperature of the suction refrigerant and the temperature of the discharge refrigerant, which are measured by the suction refrigerant temperature sensor 110 and the discharge refrigerant temperature sensor 120 (as the first temperature sensor 100), are transmitted to the microprocessor 80, and the microprocessor 80 compares the temperature of the suction refrigerant and the temperature of the discharge refrigerant.
When the temperature of the discharge refrigerant discharged from the main body of the compressor 20 is higher than the temperature of the suction refrigerant sucked into the main body of the compressor 20, the microprocessor 80 determines that the electric compressor, which is the main body of the compressor 20, is normal, and operates the air conditioner 10.
Referring to fig. 4 regarding the variation of the suction refrigerant temperature and the discharge refrigerant temperature with time when the compressor 20 main body is abnormal, it can be seen that the temperature of the discharge refrigerant gradually decreases with time and the temperature of the suction refrigerant gradually increases with time, and when the discharge refrigerant temperature discharged from the compressor 20 main body is high, it can be determined that the electric compressor as the compressor 20 main body is normal.
Referring to fig. 2 and 3, after the compressor temperature detecting operation is performed (operation S10), when the temperature of the suction refrigerant sucked into the main body of the compressor 20 is higher than the temperature of the discharge refrigerant discharged from the main body of the compressor 20, the inverter temperature detecting operation is performed (operation S20).
The inverter temperature detecting operation (operation S20) is performed as follows: the temperature of the inverter 70 disposed at the side of the main body of the compressor 20 is measured by using the second temperature sensor 200, wherein the inverter 70 may be located inside an inverter case (not shown) disposed at the side of the main body of the compressor 20 to be sealed, such as not exposed to the outside, and the inverter 70 may supply power to a motor unit (not shown) installed in the main body of the compressor 20.
The inverter 70 includes: a printed circuit board (not shown) mounted on the wiring, wherein various circuit device components are designed in a circuit pattern; a plurality of electronic devices (not shown) mounted on the printed circuit board; and other connecting lines (not shown).
In other words, the inverter 70 includes: a microcomputer unit including an Integrated Circuit (IC) element storing an operation program; an Insulated Gate Bipolar Transistor (IGBT) element unit for switching a phase and a frequency of a current applied to drive the microcomputer unit; a communication unit connected to an external storage medium to modify or upgrade a stored program of the microcomputer unit; and other high current and low current consuming devices. Since the inverter 70 is general, a detailed description of how the inverter 70 supplies power to a motor unit (not shown) while controlling the operation of the motor unit (not shown) will be omitted.
After measuring the temperature of the inverter 70 (operation S20), the microprocessor 80 determines abnormality of the motor-driven compressor (operation S30). When determining the abnormality of the electric compressor, the microprocessor 80 compares the temperature of the inverter 70 measured using the second temperature sensor 200 with a preset temperature of the inverter, and determines the abnormality of the electric compressor based on whether the temperature of the inverter 70 is lower or higher than the set temperature.
The set temperature of the inverter 70, which is previously set in the microprocessor 80, is 120 deg.c, and when the temperature of the inverter 70 measured by the second temperature sensor 200 is less than or equal to 120 deg.c, the microprocessor 80 determines that the motor-driven compressor is normal and the air conditioner 10 is normally operated.
When the temperature of the inverter 70 measured by the second temperature sensor 200 is equal to or higher than 120 deg.c, the microprocessor 80 stops the operation of the air conditioner 10 (operation S40).
The operation of the air conditioner 10 is stopped by the microprocessor 80 (operation S40) as follows: the operation of the air conditioner 10 is stopped by determining that the electric compressor is abnormal when the temperature of the inverter 70 measured by the second temperature sensor 200 is equal to or greater than 120 ℃.
When the electric compressor is determined to be abnormal while stopping the operation of the air conditioner 10 after the microprocessor 80 determines that the electric compressor is abnormal (operation S30) (operation S40), the abnormality may be transmitted to and stored in a storage device (not shown), and may be transmitted to a passenger (operation S50).
When the electric compressor is determined to be abnormal in determining the abnormality of the electric compressor (operation S30), the microprocessor 80 may stop the operation of the air conditioner 10 while transmitting the abnormal operation of the electric compressor to a separate storage device (not shown), and the storage device (not shown) may store the transmitted abnormal operation of the electric compressor.
The microprocessor 80 informs the passenger of the abnormality of the motor-driven compressor through the connected display unit 90, wherein the display unit 90 is provided at the instrument panel of the vehicle, and the passenger can check the display unit 90 and perform repair to determine the precise abnormality of the vehicle.
Therefore, by comparing the temperature of the suction refrigerant sucked into the body of the compressor 20 with the temperature of the discharge refrigerant discharged from the body of the compressor 20 using the first temperature sensor 100, and measuring the temperature of the inverter 70 located in the inverter box and comparing the temperature with the preset set temperature using the second temperature sensor 200, the abnormality of the electric compressor can be easily diagnosed, the abnormality can be conveniently transmitted to the passenger using the display unit 90, and the compressor 20 and the air conditioner 10 can be repaired according to the diagnosis result, so that the possible vehicle starting problem can be prevented.
While the disclosure has been described with reference to the embodiments shown in the drawings, the embodiments are merely examples, and it will be understood by those of ordinary skill in the art that various modifications and equivalent embodiments are possible. Therefore, the true technical scope of the present disclosure will be defined by the technical idea of the appended claims.
Industrial applicability
The present disclosure may be used to diagnose an abnormality of an electric compressor of a vehicle.
Claims (6)
1. A method for diagnosing an abnormality of an electric compressor of a vehicle, the method comprising:
performing a compressor temperature detecting operation by measuring a temperature of a suction refrigerant sucked into a compressor main body via an evaporator and a temperature of a discharge refrigerant discharged from the compressor main body to a condenser using a first temperature sensor when an air conditioning device is operated, and then comparing the measured temperatures;
performing an inverter temperature detecting operation by measuring a temperature of an inverter located in an inverter case disposed at one side of the compressor main body using a second temperature sensor when the measured temperature of the suction refrigerant is higher than the measured temperature of the discharge refrigerant in the compressor temperature detecting operation;
determining, by a microprocessor, an abnormality of the electric compressor by comparing a temperature of the inverter measured through the inverter temperature detecting operation with a preset set temperature; and the number of the first and second groups,
and stopping the operation of the air conditioning device when the microprocessor determines that the electric compressor is abnormal.
2. The method of claim 1, wherein a suction refrigerant temperature and a discharge refrigerant temperature measured in the compressor temperature detecting operation are transmitted to the microprocessor,
the first temperature sensor includes:
a suction refrigerant temperature sensor for measuring a temperature of a suction refrigerant sucked from the evaporator to the compressor main body; and
a discharge refrigerant temperature sensor for measuring a temperature of the discharge refrigerant discharged from the compressor main body to the condenser, and
the microprocessor determines that the electric compressor is normal and operates the air conditioner when the suction refrigerant temperature measured by the suction refrigerant temperature sensor is lower than the discharge refrigerant temperature measured by the discharge refrigerant temperature sensor.
3. The method according to claim 1, wherein the microprocessor determines that the motor-driven compressor is normal and operates the air conditioner when the inverter temperature measured in the inverter temperature detecting operation is lower than the set temperature,
wherein in the inverter temperature detection operation, the set temperature of the inverter is 120 ℃.
4. The method as set forth in claim 1, wherein the microprocessor operates the air conditioner when a suction refrigerant temperature measured by a suction refrigerant temperature sensor of the first temperature sensor is lower than a discharge refrigerant temperature measured by a discharge refrigerant temperature sensor of the first temperature sensor, and measures a temperature of the inverter using the second temperature sensor when the suction refrigerant temperature measured by the suction refrigerant temperature sensor is higher than the discharge refrigerant temperature measured by the discharge refrigerant temperature sensor, and
the microprocessor operates the air conditioner when the inverter temperature measured by the second temperature sensor is lower than the set temperature, and stops the operation of the electric compressor and the operation of the air conditioner by determining that the electric compressor is abnormal when the inverter temperature measured by the second temperature sensor is higher than the set temperature.
5. The method of claim 4, further comprising: the microprocessor transmits an abnormal operation of the electric compressor to a storage device storing the abnormal operation when the electric compressor is determined to be abnormal, and the storage device transmits the abnormality of the electric compressor to a passenger through the microprocessor when the vehicle is started.
6. The method of claim 5, wherein communicating to the passenger an anomaly of the electric compressor comprises: notifying the passenger of the abnormality of the electric compressor through a connected display unit when the microprocessor determines that the electric compressor is abnormal, wherein the display unit is provided on a dashboard of the vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190116192A KR102693095B1 (en) | 2019-09-20 | 2019-09-20 | Diagnosis method of abnormality of electric motor compressor |
| KR10-2019-0116192 | 2019-09-20 | ||
| PCT/KR2019/015596 WO2021054522A1 (en) | 2019-09-20 | 2019-11-15 | Method for diagnosing abnormality in electric compressor for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112930274A true CN112930274A (en) | 2021-06-08 |
| CN112930274B CN112930274B (en) | 2024-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980004025.XA Active CN112930274B (en) | 2019-09-20 | 2019-11-15 | Method for diagnosing abnormality of electric compressor of vehicle |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102693095B1 (en) |
| CN (1) | CN112930274B (en) |
| WO (1) | WO2021054522A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479031A (en) * | 2021-07-16 | 2021-10-08 | 上海金脉电子科技有限公司 | System and method for detecting heat dissipation capacity of vehicle-mounted air conditioner compressor |
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2019
- 2019-09-20 KR KR1020190116192A patent/KR102693095B1/en active IP Right Grant
- 2019-11-15 CN CN201980004025.XA patent/CN112930274B/en active Active
- 2019-11-15 WO PCT/KR2019/015596 patent/WO2021054522A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479031A (en) * | 2021-07-16 | 2021-10-08 | 上海金脉电子科技有限公司 | System and method for detecting heat dissipation capacity of vehicle-mounted air conditioner compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102693095B1 (en) | 2024-08-09 |
| CN112930274B (en) | 2024-08-09 |
| KR20210034739A (en) | 2021-03-31 |
| WO2021054522A1 (en) | 2021-03-25 |
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