CN114475140A - Vehicle air conditioner driving system - Google Patents
Vehicle air conditioner driving system Download PDFInfo
- Publication number
- CN114475140A CN114475140A CN202011149679.2A CN202011149679A CN114475140A CN 114475140 A CN114475140 A CN 114475140A CN 202011149679 A CN202011149679 A CN 202011149679A CN 114475140 A CN114475140 A CN 114475140A
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- Prior art keywords
- microprocessor
- driving
- unit
- compressor
- driving unit
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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
- B60H1/00421—Driving arrangements for parts of a vehicle air-conditioning
- B60H1/00428—Driving arrangements for parts of a vehicle air-conditioning electric
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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
- B60H1/3205—Control means therefor
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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
- B60H1/3222—Cooling devices using compression characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Abstract
The invention provides a vehicle air conditioner driving system which comprises a microprocessor, a first driving unit, an inversion unit, a power conversion unit and a second driving unit, wherein the microprocessor, the first driving unit and the inversion unit form a driving loop of a compressor, direct current voltage is converted into three-phase alternating current voltage capable of driving and controlling the compressor, the microprocessor and the second driving unit form a driving loop of a fan, and the fan is directly driven and controlled by the direct current voltage. Therefore, the invention has the double-motor driving function, can simultaneously drive and control the compressor and the fan, can monitor the rotating speed of the compressor and the fan in real time so as to realize accurate speed regulation of the compressor and the fan, has compact circuit, small volume and high integration level, is only powered by the storage battery of the vehicle, and is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the technical field of vehicle air conditioners, in particular to a vehicle air conditioner driving system.
Background
Climate change and energy crisis are two major topics generally concerned by people in the world at present, and under the dual pressure of energy and environmental protection, energy conservation and environmental protection are taken as the necessary directions of future vehicles by governments and vehicle enterprises.
Vehicle air conditioning is an important component of a vehicle and is responsible for providing a comfortable temperature environment for the driver and passengers. The original vehicle air conditioner on the vehicle drives the compressor by the engine, so that the temperature in the vehicle is reduced through the work of the whole air conditioning system. In addition, when the vehicle is stopped in a traffic jam, loading and unloading, rest, or the like, the vehicle air conditioner must be used only when the engine is operated, which causes a serious waste of energy and is liable to wear the engine.
Disclosure of Invention
The invention aims to provide a vehicle air conditioner driving system to solve the problem of energy waste caused by the use of an original air conditioner on a vehicle during idling of the vehicle in the prior art. The specific technical scheme is as follows:
to achieve the above technical object, the present invention provides a vehicle air conditioner driving system, comprising:
a microprocessor;
the input end of the first driving unit is connected to the microprocessor and used for receiving a driving control signal sent by the microprocessor and generating six paths of pulse width modulation signals according to the driving control signal;
the input end of the inversion unit is connected to the output end of the first driving unit, and the inversion unit receives the six paths of pulse width modulation signals and then generates a three-phase alternating current signal so as to control the start and stop of the compressor and adjust the rotating speed of the compressor;
the power supply conversion unit is used for providing working voltage for the microprocessor and the first driving unit;
the input end of the second driving unit is connected to the microprocessor, the output end of the second driving unit is connected to the input end of the fan, and the second driving unit adjusts the rotating speed of the fan according to the rotating speed and voltage control signal after receiving the rotating speed and voltage control signal sent by the microprocessor.
Optionally, the method further includes:
and the communication unit is connected between the upper computer and the microprocessor and used for receiving the control instruction of the upper computer.
Optionally, the communication unit adopts two selectable modes of TTL/RS485 communication modes.
Optionally, the method further includes:
and the temperature detection unit is connected with the microprocessor and used for detecting the temperature of the compressor and the ambient temperature and converting the temperature of the compressor and the ambient temperature into corresponding electric signals to be fed back to the microprocessor.
Optionally, the microprocessor adopts an MCU chip with a model number of IRMCF 341.
Optionally, the first driving unit is a three-phase bridge inverter integrated circuit with a model number of IR 2136.
Optionally, the inverter unit includes a switching tube, and a control end of the switching tube is connected to the output end of the first driving unit.
Optionally, the switch tube is a field effect tube with a model number of IRFP4468PbF or IRFP4668PbF or IRFB3407 ZPbF.
Optionally, the inverter unit further includes a current detection module, configured to collect a current of the compressor, amplify and AD convert the current of the compressor, convert the current into a digital quantity recognizable by the microprocessor, and feed the digital quantity back to the microprocessor through the first driving unit.
Optionally, the second driving unit is further configured to collect a rotation speed voltage signal of the fan and feed back the rotation speed voltage signal to the microprocessor.
The vehicle-mounted air conditioner driving system provided by the invention has the following beneficial effects: the vehicle air conditioner driving system comprises a microprocessor, a first driving unit, an inversion unit, a power conversion unit and a second driving unit, wherein the power conversion unit is used for providing working voltage for the microprocessor and the first driving unit, the input end of the first driving unit is connected to the microprocessor, the first driving unit generates a pulse width modulation signal according to a driving control signal sent by the microprocessor after receiving the driving control signal, the input end of the inversion unit is connected to the output end of the first driving unit, the inversion unit adjusts the rotating speed of a compressor according to the received pulse width modulation signal, the input end of the second driving unit is connected to the microprocessor, the output end of the second driving unit is connected to the input end of a fan, and the second driving unit adjusts the rotating speed voltage control signal according to the rotating speed voltage control signal after receiving the rotating speed voltage control signal sent by the microprocessor The rotational speed of the fan. The microprocessor, the first driving unit and the inverter unit form a driving loop of the compressor, the adopted principle is that direct current voltage is converted into alternating current voltage capable of driving and controlling the compressor, the microprocessor and the second driving unit form a driving loop of the fan, and the adopted principle is that the fan is directly driven and controlled by the direct current voltage. Therefore, the double-motor driving system has the double-motor driving function, can simultaneously drive and control the compressor and the fan, can monitor the rotating speed of the compressor and the fan in real time so as to realize accurate speed regulation of the compressor and the fan, has compact circuit, small volume and high integration level, is only powered by the storage battery of a vehicle, is energy-saving and environment-friendly, allows large current to pass through, is safe and reliable, and has high efficiency of the whole vehicle driving system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle air conditioning driving system according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings in order to make the objects and features of the present invention more comprehensible, however, the present invention may be realized in various forms and should not be limited to the embodiments described above. Furthermore, it will be understood that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer program instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
As described in the background art, the original air conditioner on the vehicle in the prior art is driven by a gasoline engine, and when the vehicle is idling (stopped), the original air conditioner is used, so that the oil consumption is high, the engine is easily abraded, and even the risk of carbon monoxide poisoning exists seriously.
Therefore, the vehicle air conditioner driving control system directly adopts the vehicle-mounted storage battery with 12V direct current or 24V direct current or 36V direct current to supply power for the vehicle air conditioner, so that the air conditioner can be operated only by the power supply of the storage battery when the vehicle is idling, the fuel saving and the environmental protection are realized, the whole vehicle air conditioner driving system conforms to the regulated level of safe voltage, a voltage doubling circuit is omitted, and the structure is more compact. Referring to fig. 1, the vehicle air conditioner driving system includes a microprocessor 10, a first driving unit 20, an inverter unit 30, a power conversion unit 40, and a second driving unit 60, wherein:
and a power conversion unit 40 for providing an operating voltage to the microprocessor 10 and the first driving unit 20.
The microprocessor 10 is provided with an a/D conversion module, a signal generation module, a signal processing module and other modules.
Preferably, the microprocessor 10 is an MCU chip with a model of IRMCF341, and the operating voltage thereof is 1.8V and 3.3V dc voltage for supplying power simultaneously, and the IRMCF341 chip has the advantages of high integration level, high efficiency, and low cost.
The input end of the first driving unit 20 is connected to the microprocessor, and is configured to receive a driving control signal sent by the microprocessor 10, and generate a six-path pulse width modulation signal (PWM) according to the driving control signal.
Preferably, the first driving unit 20 is a three-phase bridge inverter integrated circuit with a model number of IR2136, the operating voltage of the three-phase bridge inverter integrated circuit is 15V dc voltage, six paths of pulse width modulation signals can be generated according to the driving control signal, and the IR2136 chip has the advantages of small size and high integration level.
The input end of the inverter unit 30 is connected to the output end of the first driving unit 20, and generates a three-phase ac signal according to the received six-channel pwm signals, so as to control the start and stop of the compressor and adjust the rotation speed of the compressor 50.
Specifically, the inverter unit 30 includes a switching tube, a control end of the switching tube is connected to an output end of the first driving unit 20, and a pulse width modulation signal can be output by controlling a conduction state of the switching tube. Therefore, the output end of the inverter unit 30 obtains a series of pulses with equal amplitude and unequal width, the pulses are used for replacing the sine wave or other waveforms of the original alternating voltage, the pulse width in the pulse width modulation signal can control the output voltage of the inverter unit 30, and the pulse period can control the output frequency of the inverter unit, so that the power supply voltage of the compressor 50 can be adjusted, and the rotating speed of the compressor can be adjusted.
Preferably, the switch tube is a field effect tube with the model of IRFP4468PbF or IRFP4668PbF or IRFB3407 ZPbF. Because the vehicle air conditioner driving control system provided by the embodiment adopts a power supply form of lower than 36V direct current, the input and output currents of the whole vehicle air conditioner driving control system are far larger than those of a common household air conditioner under the condition of outputting the same refrigerating capacity as that of the household air conditioner. By adopting the field effect tube, the current which can pass through the field effect tube is larger, the maximum current can reach 195A, the field effect tube is more suitable for a low-voltage high-power driving system, and the safety and the reliability of the whole vehicle air conditioner driving system can be ensured. Meanwhile, the field effect tube has a small drain-source resistance value and a large conduction degree of the switch tube, the field effect tube can be completely conducted, and the efficiency of the whole vehicle air conditioner driving system is higher.
Further, the inverter unit 30 further includes a current detection module, configured to collect a current of the compressor 50, amplify and perform AD conversion on the current of the compressor 50, convert the current into a digital quantity recognizable by the microprocessor 10, and feed the digital quantity back to the microprocessor 10 through the first driving unit 20, where the microprocessor 10 determines whether the current exceeds a protection threshold, that is, whether the compressor 50 is in an overcurrent condition, and the general compressor 50 is in an overcurrent condition only when the compressor is in an overload, locked-rotor, or other abnormalities, and if the microprocessor 10 determines that the compressor is in an overcurrent condition, the microprocessor stops sending a driving control signal to the first driving unit 20, so as to protect the compressor 50 from being burned out.
The microprocessor 10, the first driving unit 20, and the inverter unit 30 form a driving circuit of the compressor, and convert a dc voltage into an ac voltage capable of driving and controlling the compressor.
The input end of the second driving unit 60 is connected to the microprocessor 10, the output end of the second driving unit 60 is connected to the input end of the fan 70, and the second driving unit 60 adjusts the rotating speed of the fan 70 according to the rotating speed voltage control signal after receiving the rotating speed voltage control signal sent by the microprocessor 10.
Further, the second driving unit 60 is further configured to collect a rotation speed voltage signal of the fan 70 and feed back the rotation speed voltage signal to the microprocessor 10, and the microprocessor 10 may detect the rotation speed of the fan in real time according to the rotation speed voltage signal and may adjust a rotation speed voltage control signal sent to the second driving unit 60 according to the level signal, so as to ensure that the rotation speed of the fan 70 is adjusted to a required state.
The microprocessor 10 and the second driving unit 60 form a driving loop of the fan, and the adopted principle is that direct current voltage is directly adopted to drive and control the fan, so as to realize stepless speed regulation for the direct current fan.
To sum up, the vehicle driving system that this embodiment provided has two motor drive functions, can drive control compressor and fan simultaneously, and can be to the rotational speed real time monitoring of compressor and fan to realize the accurate speed governing to compressor and fan 70, and the circuit is compact, small, the integrated level is high, need not rely on the engine power supply, and is energy-concerving and environment-protective, under the battery as the power form, the electric current of letting through is up to 50A, safe and reliable, whole vehicle air conditioner actuating system is efficient.
Further, the vehicle air conditioner driving system further includes a communication unit 80 connected between an upper computer (not shown in the figure) and the microprocessor 10, for receiving a control command of the upper computer.
Specifically, the communication unit 80 adopts two selectable modes of TTL/RS485 communication, wherein the RS485 can realize longer-distance communication and has stronger interference resistance, thereby increasing the feasible communication distance and communication reliability between the upper computer and the microprocessor 10.
Further, the vehicle air conditioner driving system further includes a temperature detection unit 90 connected to the microprocessor 10, and configured to detect the temperature of the compressor 50 and the ambient temperature, and convert the temperature of the compressor 50 and the ambient temperature into corresponding electrical signals, and feed back the electrical signals to the microprocessor 10. The microprocessor 10 determines whether the temperature of the compressor 50 exceeds a protection threshold value according to an electrical signal corresponding to the temperature of the compressor, that is, whether the compressor 50 has a high temperature condition, if the microprocessor 10 determines that the compressor 50 has the high temperature condition, the microprocessor stops sending a driving control signal to the first driving unit 20, and the microprocessor 10 detects the ambient temperature according to the electrical signal corresponding to the ambient temperature to ensure that the vehicle-mounted air conditioner is in a safe working environment, wherein the ambient temperature includes an exhaust temperature, an intake temperature, a shell temperature and the like of the vehicle-mounted air conditioner.
In summary, the vehicle air conditioner driving system provided by the invention has the following advantages: the vehicle air conditioner driving system comprises a microprocessor, a first driving unit, an inversion unit, a power conversion unit and a second driving unit, wherein the power conversion unit is used for providing working voltage for the microprocessor and the first driving unit, the input end of the first driving unit is connected to the microprocessor, the first driving unit generates six paths of pulse width modulation signals according to driving control signals after receiving the driving control signals sent by the microprocessor, the input end of the inversion unit is connected to the output end of the first driving unit, the inversion unit generates three-phase alternating current signals after receiving the six paths of pulse width modulation signals so as to control the start and stop of a compressor and adjust the rotating speed of the compressor, the input end of the second driving unit is connected to the microprocessor, and the output end of the second driving unit is connected to the input end of a fan, and the second driving unit adjusts the rotating speed of the fan according to the rotating speed voltage control signal after receiving the rotating speed voltage control signal sent by the microprocessor. The microprocessor, the first driving unit and the inverter unit form a driving loop of the compressor, the adopted principle is that direct current voltage is converted into alternating current voltage capable of driving and controlling the compressor, the microprocessor and the second driving unit form a driving loop of the fan, and the adopted principle is that the fan is directly driven and controlled by the direct current voltage. Therefore, the air conditioner driving system has the double-motor driving function, can simultaneously drive and control the compressor and the fan, can monitor the rotating speed of the compressor and the fan in real time so as to realize accurate speed regulation of the compressor and the fan, has compact circuit, small volume and high integration level, does not need to rely on the power supply of an engine, only relies on the power supply of a storage battery of a vehicle, is energy-saving and environment-friendly, can omit a voltage doubling circuit, has compact structure, adopts a direct-current low-voltage power supply with the power form lower than 36V, accords with the specified level of national safety power utilization, allows large current, and has high efficiency.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A vehicular air conditioning drive system characterized by comprising:
a microprocessor;
the input end of the first driving unit is connected to the microprocessor and used for receiving a driving control signal sent by the microprocessor and generating six paths of pulse width modulation signals according to the driving control signal;
the input end of the inversion unit is connected to the output end of the first driving unit, and the inversion unit receives the six paths of pulse width modulation signals and then generates a three-phase alternating current signal so as to control the start and stop of the compressor and adjust the rotating speed of the compressor;
the power supply conversion unit is used for providing working voltage for the microprocessor and the first driving unit;
the input end of the second driving unit is connected to the microprocessor, the output end of the second driving unit is connected to the input end of the fan, and the second driving unit adjusts the rotating speed of the fan according to the rotating speed and voltage control signal after receiving the rotating speed and voltage control signal sent by the microprocessor.
2. A vehicular air-conditioning driving system according to claim 1, characterized by further comprising:
and the communication unit is connected between the upper computer and the microprocessor and used for receiving the control instruction of the upper computer.
3. The air conditioning driving system for vehicle as claimed in claim 2, wherein the communication unit adopts two selectable modes of TTL/RS485 communication.
4. The vehicular air conditioning drive system according to claim 1, further comprising:
and the temperature detection unit is connected with the microprocessor and used for detecting the temperature of the compressor and the ambient temperature and converting the temperature of the compressor and the ambient temperature into corresponding electric signals to be fed back to the microprocessor.
5. The vehicle air conditioner driving system as defined in claim 1, wherein said microprocessor is an MCU chip of type IRMCF 341.
6. The vehicle air conditioning drive system of claim 1, wherein said first drive unit utilizes a three-phase bridge inverter integrated circuit model number IR 2136.
7. The vehicle air conditioning drive system of claim 1, wherein the inverter unit includes a switching tube having a control terminal connected to an output terminal of the first drive unit.
8. A vehicle air conditioning drive system as set forth in claim 7 wherein said switching tube is a field effect tube of the type IRFP4468PbF or IRFP4668PbF or IRFB3407 ZPbF.
9. The vehicle air conditioner driving system as claimed in claim 7, wherein the inverter unit further comprises a current detection module for collecting a current of the compressor, amplifying the current of the compressor, performing AD conversion, converting the current into a digital quantity recognizable by the microprocessor, and feeding back the digital quantity to the microprocessor through the first driving unit.
10. The vehicle air conditioning drive system of claim 1, wherein said secondary drive unit is further configured to collect a speed voltage signal of said blower and feed back said speed voltage signal to said microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149679.2A CN114475140A (en) | 2020-10-23 | 2020-10-23 | Vehicle air conditioner driving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149679.2A CN114475140A (en) | 2020-10-23 | 2020-10-23 | Vehicle air conditioner driving system |
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| CN114475140A true CN114475140A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011149679.2A Pending CN114475140A (en) | 2020-10-23 | 2020-10-23 | Vehicle air conditioner driving system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116566281A (en) * | 2023-07-06 | 2023-08-08 | 深圳艾为电气技术有限公司 | Fault isolation control system and control method for electric compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080115512A1 (en) * | 2006-11-21 | 2008-05-22 | B/E Aerospace, Inc. | Wild frequency avionic refrigeration system and controller therefor |
| KR20110093383A (en) * | 2010-02-12 | 2011-08-18 | 한라공조주식회사 | Air conditioner for vehicle and method for controlling electric compressor for the same |
| CN106394175A (en) * | 2016-10-14 | 2017-02-15 | 重庆比速汽车有限公司 | Compressor control system of manual air conditioner for electromobile |
| CN108162723A (en) * | 2016-12-07 | 2018-06-15 | 中达电子零组件(吴江)有限公司 | A kind of air conditioner for electric motor coach system and its frequency converter |
| CN208812929U (en) * | 2018-09-03 | 2019-05-03 | 合肥天鹅制冷科技有限公司 | The control device of low starting current air-conditioning |
-
2020
- 2020-10-23 CN CN202011149679.2A patent/CN114475140A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080115512A1 (en) * | 2006-11-21 | 2008-05-22 | B/E Aerospace, Inc. | Wild frequency avionic refrigeration system and controller therefor |
| KR20110093383A (en) * | 2010-02-12 | 2011-08-18 | 한라공조주식회사 | Air conditioner for vehicle and method for controlling electric compressor for the same |
| CN106394175A (en) * | 2016-10-14 | 2017-02-15 | 重庆比速汽车有限公司 | Compressor control system of manual air conditioner for electromobile |
| CN108162723A (en) * | 2016-12-07 | 2018-06-15 | 中达电子零组件(吴江)有限公司 | A kind of air conditioner for electric motor coach system and its frequency converter |
| CN208812929U (en) * | 2018-09-03 | 2019-05-03 | 合肥天鹅制冷科技有限公司 | The control device of low starting current air-conditioning |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116566281A (en) * | 2023-07-06 | 2023-08-08 | 深圳艾为电气技术有限公司 | Fault isolation control system and control method for electric compressor |
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