WO2020077775A1 - 压缩机缸体切换检测方法和装置、空调 - Google Patents

压缩机缸体切换检测方法和装置、空调 Download PDF

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WO2020077775A1
WO2020077775A1 PCT/CN2018/120558 CN2018120558W WO2020077775A1 WO 2020077775 A1 WO2020077775 A1 WO 2020077775A1 CN 2018120558 W CN2018120558 W CN 2018120558W WO 2020077775 A1 WO2020077775 A1 WO 2020077775A1
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Prior art keywords
compressor
pressure
difference
predetermined
suction
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PCT/CN2018/120558
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English (en)
French (fr)
Inventor
余凯
李龙飞
薛h
傅英胜
倪毅
戎耀鹏
张仲秋
刘群波
许克
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珠海格力电器股份有限公司
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Publication of WO2020077775A1 publication Critical patent/WO2020077775A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1933—Suction pressures

Definitions

  • the present disclosure relates to the field of control, and in particular to a method and device for switching detection of a compressor cylinder and an air conditioner.
  • the compressor's intake volume, exhaust volume, motor efficiency, lubrication system control, etc. are different, so the single cylinder operation of the compressor or more The operating characteristics of the cylinder are separately controlled to optimize the performance of the compressor.
  • a compressor cylinder switching detection method including: detecting whether the suction pressure and the discharge pressure of the compressor are in a steady state; When the air pressure and the discharge pressure are in a steady state, the pressure parameter of the compressor is detected as the first parameter value; the cylinder switching operation is performed on the compressor; the compressor is detected again after a predetermined time The pressure parameter as a second parameter value; calculating the rate of change of the pressure parameter according to the first parameter value and the second parameter value; determining the compression when the rate of change of the pressure parameter is greater than a predetermined threshold The cylinder of the machine is successfully switched.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • the method before detecting whether the suction pressure and the discharge pressure of the compressor are at a steady state, the method further includes: adjusting the difference between the discharge pressure and the suction pressure of the compressor to a predetermined pressure difference range.
  • adjusting the difference between the discharge pressure and the suction pressure of the compressor to a predetermined pressure difference range includes: detecting the discharge pressure and the suction pressure of the compressor; When the difference between the discharge pressure and the suction pressure is not within the predetermined pressure difference range, the pressure of the compressor is adjusted so that the difference between the discharge pressure of the compressor and the suction pressure is controlled at the Within the predetermined pressure difference.
  • the pressure adjustment of the compressor includes: when the difference between the discharge pressure and the suction pressure of the compressor is less than the lower limit of the predetermined pressure difference range, The first adjustment is to increase the difference between the discharge pressure and the suction pressure of the compressor.
  • the first adjustment includes: increasing the operating frequency of the compressor.
  • a second adjustment is performed on the compressor to reduce the compressor The difference between the discharge pressure and the suction pressure.
  • the second adjustment includes: reducing the operating frequency of the compressor.
  • the second adjustment further includes: adjusting the intake and exhaust bypass mechanism to relieve pressure.
  • the method when the suction pressure and the discharge pressure of the compressor are at a steady state, the method further includes: adjusting the operating frequency of the compressor to a predetermined frequency range, and then performing detection of the compression The steps of the machine's pressure parameters.
  • adjusting the operating frequency of the compressor to a predetermined frequency range includes: detecting the operating frequency of the compressor; when the operating frequency of the compressor is not within the predetermined frequency range, The frequency of the compressor is adjusted so as to control the operating frequency of the compressor within the predetermined frequency range.
  • adjusting the frequency of the compressor includes increasing the operating frequency of the compressor if the operating frequency of the compressor is less than the lower limit of the predetermined frequency range.
  • the operating frequency of the compressor when the operating frequency of the compressor is greater than the upper limit of the predetermined frequency range, the operating frequency of the compressor is reduced.
  • a compressor cylinder switching detection device including: a steady state detection module configured to detect whether the suction pressure and the discharge pressure of the compressor are in a stable state Rate detection module, which is configured to detect the pressure parameter of the compressor as the first parameter value when the suction pressure and discharge pressure of the compressor are at a steady state; After the compressor performs the cylinder switching operation, the pressure parameter of the compressor is detected again after a predetermined time as a second parameter value; the change in the pressure parameter is calculated according to the first parameter value and the second parameter value Rate, when the rate of change of the pressure parameter is greater than a predetermined threshold, it is determined that the cylinder switching of the compressor is successful; the cylinder switching module is configured to perform cylinder switching operation on the compressor.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • the pressure difference adjustment module is configured to, before the steady state detection module detects whether the suction pressure and the discharge pressure of the compressor are at a steady state, the discharge pressure of the compressor and the suction pressure The difference is adjusted to a predetermined pressure difference range.
  • the pressure difference adjustment module is configured to detect the discharge pressure and the suction pressure of the compressor, where the difference between the discharge pressure and the suction pressure of the compressor is not within the predetermined pressure difference range In the case of, the pressure of the compressor is adjusted so that the difference between the discharge pressure and the suction pressure of the compressor is controlled within the predetermined pressure difference range.
  • the pressure difference adjustment module is further configured to perform a first step on the compressor when the difference between the discharge pressure and the suction pressure of the compressor is less than the lower limit of the predetermined pressure difference range Adjust to increase the difference between the discharge pressure and the suction pressure of the compressor.
  • the first adjustment includes: increasing the operating frequency of the compressor.
  • the pressure difference adjustment module is further configured to perform a second Adjust to reduce the difference between the discharge pressure and suction pressure of the compressor.
  • the second adjustment includes: reducing the operating frequency of the compressor.
  • the second adjustment further includes: adjusting the intake and exhaust bypass mechanism to relieve pressure.
  • the above device further includes: a frequency adjustment module configured to adjust the working frequency of the compressor to a predetermined frequency range when the suction pressure and the discharge pressure of the compressor are at a steady state And then instruct the rate detection module to perform the operation of detecting the pressure parameter of the compressor.
  • the frequency adjustment module is configured to detect the operating frequency of the compressor, and in the case where the operating frequency of the compressor is not within the predetermined frequency range, adjust the frequency of the compressor so that The operating frequency of the compressor is controlled within the predetermined frequency range.
  • the frequency adjustment module is configured to increase the operating frequency of the compressor if the operating frequency of the compressor is less than the lower limit of the predetermined frequency range.
  • the frequency adjustment module is further configured to reduce the operating frequency of the compressor if the operating frequency of the compressor is greater than the upper limit of the predetermined frequency range.
  • a compressor cylinder switching detection device including: a memory configured to store instructions; a processor coupled to the memory, the processor configured to be based on the memory
  • the stored instruction execution implements the method as described in any of the above embodiments.
  • an air conditioner including the compressor cylinder switching detection device according to any of the above embodiments.
  • a computer-readable storage medium stores computer instructions, which are implemented when executed by a processor as described in any of the above embodiments Methods.
  • FIG. 1 is an exemplary flowchart of a compressor cylinder switching detection method according to an embodiment of the present disclosure
  • FIG. 2 is an exemplary flowchart of a method for detecting a switching of a compressor block according to another embodiment of the present disclosure
  • FIG. 3 is an exemplary flowchart of a pressure difference adjustment method according to an embodiment of the present disclosure
  • FIG. 4 is an exemplary flowchart of a method for detecting switching of a compressor block according to yet another embodiment of the present disclosure
  • FIG. 5 is an exemplary flowchart of a frequency adjustment method according to an embodiment of the present disclosure
  • FIG. 6 is an exemplary block diagram of a compressor cylinder switching detection device according to an embodiment of the present disclosure
  • FIG. 7 is an exemplary block diagram of a compressor cylinder switching detection device according to another embodiment of the present disclosure.
  • FIG. 8 is an exemplary block diagram of a compressor cylinder switching detection device according to yet another embodiment of the present disclosure.
  • the present disclosure provides a solution capable of detecting cylinder switching of the compressor.
  • FIG. 1 is an exemplary flowchart of a compressor block switching detection method according to an embodiment of the present disclosure.
  • the compressor block switching detection method described above may be performed by the compressor block switching device.
  • step 101 it is detected whether the suction pressure and the discharge pressure of the compressor are in a steady state.
  • step 102 when the suction pressure and the discharge pressure of the compressor are in a steady state, the pressure parameter of the compressor is detected as the first parameter value.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • step 103 a cylinder switching operation is performed on the compressor.
  • the compressor can be switched from a single cylinder to a double cylinder or an additional cylinder. In other embodiments, the compressor can be switched from double cylinder to single cylinder or to reduce the cylinder block.
  • the compressor may be a multi-rotor compressor, and each compression cylinder of the compressor may be an equal volume cylinder or an unequal volume cylinder.
  • step 104 the pressure parameter of the compressor is detected again as a second parameter value after a predetermined time.
  • step 105 the rate of change of the pressure parameter is calculated based on the first parameter value and the second parameter value.
  • step 106 if the rate of change of the pressure parameter is greater than a predetermined threshold, it is determined that the compressor block is successfully switched.
  • the compressor cylinder switching detection method provided by the above embodiment of the present disclosure, by using the change rate of the pressure parameter of the compressor before and after cylinder switching, it can be easily determined whether the compressor has successfully completed cylinder switching. Therefore, it can be controlled according to the actual operating state of the compressor to optimize the performance of the compressor.
  • FIG. 2 is an exemplary flowchart of a compressor block switching detection method according to another embodiment of the present disclosure.
  • the compressor block switching detection method described above may be performed by the compressor block switching device.
  • step 201 the difference between the discharge pressure of the compressor and the suction pressure is adjusted to a predetermined pressure difference range.
  • FIG. 3 is an exemplary flowchart of a pressure difference adjustment method according to an embodiment of the present disclosure.
  • the above pressure difference adjustment method may be performed by a compressor cylinder switching device.
  • step 301 the discharge pressure and suction pressure of the compressor are detected.
  • step 302 when the difference between the discharge pressure of the compressor and the suction pressure is not within the predetermined pressure difference range, the pressure of the compressor is adjusted so as to control the difference between the discharge pressure of the compressor and the suction pressure at Within the predetermined pressure difference.
  • the compressor when the difference between the discharge pressure and the suction pressure of the compressor is less than the lower limit of the predetermined pressure difference range, the compressor is first adjusted to increase the discharge pressure and the suction pressure of the compressor Difference.
  • the first adjustment includes increasing the operating frequency of the compressor.
  • the second adjustment is made to the compressor to reduce the discharge pressure and suction of the compressor The difference in pressure.
  • the second adjustment includes reducing the operating frequency of the compressor.
  • the second adjustment may also include adjusting the intake and exhaust bypass mechanism for pressure relief.
  • the predetermined pressure difference range is [a1, b1]. If the pressure difference between the discharge pressure of the compressor and the suction pressure is less than a1, the pressure difference is increased by means of compressor frequency increase, etc., so that the pressure difference falls within the predetermined pressure difference range [a1, b1]. If the pressure difference is greater than b1, reduce the pressure difference by means of compressor frequency reduction, opening the suction and exhaust side bypass mechanism to relieve pressure, etc., so that the pressure difference falls within the predetermined pressure difference range [a1, b1].
  • step 202 it is detected whether the suction pressure and the discharge pressure of the compressor are in a steady state.
  • step 203 when the suction pressure and the discharge pressure of the compressor are in a steady state, the pressure parameter of the compressor is detected as the first parameter value.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • step 204 a cylinder switching operation is performed on the compressor.
  • step 205 the pressure parameter of the compressor is detected again as a second parameter value after a predetermined time.
  • step 206 the rate of change of the pressure parameter is calculated based on the first parameter value and the second parameter value.
  • step 207 if the rate of change of the pressure parameter is greater than a predetermined threshold, it is determined that the cylinder switching of the compressor is successful.
  • FIG. 4 is an exemplary flowchart of a method for detecting compressor block switching according to yet another embodiment of the present disclosure.
  • the compressor block switching detection method described above may be performed by the compressor block switching device.
  • step 401 the difference between the discharge pressure of the compressor and the suction pressure is adjusted to a predetermined pressure difference range.
  • step 402 it is detected whether the suction pressure and the discharge pressure of the compressor are in a steady state.
  • step 403 when the suction pressure and the discharge pressure of the compressor are in a steady state, the operating frequency of the compressor is adjusted to a predetermined frequency range.
  • FIG. 5 is an exemplary flowchart of a frequency adjustment method according to an embodiment of the present disclosure.
  • the above frequency adjustment method may be performed by a compressor cylinder switching device.
  • step 501 the operating frequency of the compressor is detected.
  • step 502 when the operating frequency of the compressor is not within a predetermined frequency range, the compressor is frequency-adjusted so as to control the operating frequency of the compressor within the predetermined frequency range.
  • the operating frequency of the compressor in the case where the operating frequency of the compressor is less than the lower limit of the predetermined frequency range, the operating frequency of the compressor is increased.
  • the operating frequency of the compressor when the operating frequency of the compressor is greater than the upper limit of the predetermined frequency range, the operating frequency of the compressor is reduced.
  • the predetermined frequency range is [x1, y1]. If the working frequency of the compressor is less than x1, the working frequency is increased by means of compressor frequency increase, etc., so that the working frequency falls within the predetermined frequency range [x1, y1]. If the operating frequency is greater than y1, reduce the operating frequency by reducing the frequency of the compressor so that the operating frequency falls within the predetermined frequency range [x1, y1].
  • step 404 the pressure parameter of the compressor is detected as the first parameter value.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • step 405 a cylinder switching operation is performed on the compressor.
  • step 406 the pressure parameter of the compressor is detected again as a second parameter value after a predetermined time.
  • step 407 the rate of change of the pressure parameter is calculated according to the first parameter value and the second parameter value.
  • step 408 if the rate of change of the pressure parameter is greater than a predetermined threshold, it is determined that the cylinder switching of the compressor is successful.
  • the compressor cylinder switching detection device includes a steady state detection module 61, a rate detection module 62 and a cylinder switching module 63.
  • the steady state detection module 61 is configured to detect whether the suction pressure and the discharge pressure of the compressor are in a steady state.
  • the rate detection module 62 is configured to detect the pressure parameter of the compressor as the first parameter value when the suction pressure and the discharge pressure of the compressor are in a steady state. After the cylinder switching module 63 performs the cylinder switching operation on the compressor, the rate detection module 62 detects the pressure parameter of the compressor again as a second parameter value after a predetermined time. The rate detection module 62 calculates the rate of change of the pressure parameter according to the first parameter value and the second parameter value. If the rate of change of the pressure parameter is greater than a predetermined threshold, it is determined that the cylinder block of the compressor is successfully switched.
  • the pressure parameter is the discharge pressure or suction pressure of the compressor.
  • the cylinder switching module 63 is configured to perform a cylinder switching operation on the compressor.
  • the compressor can be switched from a single cylinder to a double cylinder or an additional cylinder. In other embodiments, the compressor can be switched from double cylinder to single cylinder or to reduce the cylinder block.
  • the compressor may be a multi-rotor compressor, and each compression cylinder of the compressor may be an equal volume cylinder or an unequal volume cylinder.
  • the compressor cylinder switching detection device provided by the above embodiment of the present disclosure, by using the change rate of the pressure parameter of the compressor before and after cylinder switching, it can be easily determined whether the compressor has successfully completed cylinder switching. Therefore, it can be controlled according to the actual operating state of the compressor to optimize the performance of the compressor.
  • FIG. 7 is an exemplary block diagram of a compressor cylinder switching detection device according to another embodiment of the present disclosure. The difference between FIG. 7 and FIG. 6 is that, in the embodiment shown in FIG. 7, a differential pressure adjustment module 64 is also included.
  • the differential pressure adjustment module 64 is configured to adjust the difference between the discharge pressure of the compressor and the suction pressure to a predetermined pressure difference range before the steady state detection module 61 detects whether the suction pressure and the discharge pressure of the compressor are at a steady state Inside.
  • the pressure difference adjustment module 64 is configured to detect the discharge pressure and the suction pressure of the compressor. In the case where the difference between the discharge pressure and the suction pressure of the compressor is not within the predetermined pressure difference range, The compressor performs pressure adjustment so as to control the difference between the discharge pressure of the compressor and the suction pressure within a predetermined pressure difference range.
  • the pressure difference adjustment module 64 is further configured to perform a first adjustment on the compressor to increase compression when the difference between the discharge pressure and the suction pressure of the compressor is less than the lower limit of the predetermined pressure difference range The difference between the exhaust pressure of the machine and the suction pressure.
  • the first adjustment includes increasing the operating frequency of the compressor.
  • the pressure difference adjustment module 64 is further configured to perform a second adjustment on the compressor to reduce the difference between the discharge pressure of the compressor and the suction pressure greater than the upper limit of the predetermined pressure difference range.
  • the difference between the discharge pressure of the compressor and the suction pressure includes reducing the operating frequency of the compressor.
  • the second adjustment may also include adjusting the intake and exhaust bypass mechanism for pressure relief.
  • the compressor cylinder switching detection device further includes a frequency adjustment module 65.
  • the frequency adjustment module 65 is configured to adjust the working frequency of the compressor to a predetermined frequency range when the suction pressure and the discharge pressure of the compressor are in a steady state, and then instruct the rate detection module 62 to perform the detection of the compressor pressure parameter Operation.
  • the frequency adjustment module 65 is configured to detect the operating frequency of the compressor, and when the operating frequency of the compressor is not within a predetermined frequency range, adjust the frequency of the compressor to control the operating frequency of the compressor Within a predetermined frequency range.
  • the frequency adjustment module 65 is configured to increase the operating frequency of the compressor when the operating frequency of the compressor is less than the lower limit of the predetermined frequency range.
  • the frequency adjustment module 65 is further configured to reduce the operating frequency of the compressor when the operating frequency of the compressor is greater than the upper limit of the predetermined frequency range.
  • the compressor cylinder switching detection device includes a memory 81 and a processor 82.
  • the memory 81 is used to store instructions, and the processor 82 is coupled to the memory 81.
  • the processor 82 is configured to execute the method according to any of the embodiments in FIGS. 1 to 5 based on the instructions stored in the memory.
  • the compressor cylinder switching detection device further includes a communication interface 83 for information exchange with other devices.
  • the device also includes a bus 84, a processor 82, a communication interface 83, and a memory 81 through the bus 84 to complete mutual communication.
  • the memory 81 may include a high-speed RAM memory, or may further include a non-volatile memory (non-volatile memory), for example, at least one magnetic disk memory.
  • the memory 81 may be a memory array.
  • the storage 81 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.
  • processor 82 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or one or more integrated circuits configured to implement embodiments of the present disclosure.
  • the present disclosure also relates to a computer-readable storage medium that stores computer instructions. When the instructions are executed by a processor, the method according to any one of the embodiments in FIGS. 1 to 5 is implemented.
  • the present disclosure also provides an air conditioner including the compressor cylinder switching detection device according to any one of the embodiments of FIGS. 6 to 8.
  • the functional unit module described above may be implemented as a general-purpose processor, a programmable logic controller (Programmable Logic Controller, PLC for short), or a digital signal processor for performing the functions described in this disclosure.
  • Digital Processor abbreviation: DSP
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • other programmable logic devices discrete gates or transistors Logic devices, discrete hardware components, or any suitable combination thereof.
  • the program may be stored in a computer-readable storage medium.
  • the mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

Abstract

一种压缩机缸体切换检测方法和装置、空调，压缩机缸体切换检测装置检测压缩机的吸气压力和排气压力是否处于稳态，在压缩机的吸气压力和排气压力处于稳态的情况下，检测压缩机的压力参数以作为第一参数值，对压缩机进行缸体切换操作，经过预定时间再次检测压缩机的压力参数以作为第二参数值，根据第一参数值和第二参数值计算压力参数的变化速率，在压力参数的变化速率大于预定门限的情况下，确定压缩机的缸体切换成功。通过利用压缩机在缸体切换前后的压力参数变化速率，能够方便地确定出压缩机是否成功完成缸体切换，可根据压缩机的实际运行状态进行控制，使压缩机的性能达到最优。

Description

压缩机缸体切换检测方法和装置、空调
相关申请的交叉引用
本申请是以CN申请号为201811219699.5，申请日为2018年10月19日的申请为基础，并主张其优先权，该CN申请的公开内容在此作为整体引入本申请中。
技术领域
本公开涉及控制领域，特别涉及一种压缩机缸体切换检测方法和装置、空调。
背景技术
目前，由于压缩机在单缸运行或多缸运行情况下，压缩机的吸气量、排气量、电机效率、润滑系统控制等方面均不相同，因此需要针对压缩机的单缸运行或多缸运行特点分别进行控制，以使压缩机的性能达到最优。
发明内容
根据本公开的一个或多个实施例的一个方面，提供一种压缩机缸体切换检测方法，包括：检测压缩机的吸气压力和排气压力是否处于稳态；在所述压缩机的吸气压力和排气压力处于稳态的情况下，检测所述压缩机的压力参数，以作为第一参数值；对所述压缩机进行缸体切换操作；经过预定时间再次检测所述压缩机的压力参数，以作为第二参数值；根据所述第一参数值和第二参数值计算所述压力参数的变化速率；在所述压力参数的变化速率大于预定门限的情况下，确定所述压缩机的缸体切换成功。
在一些实施例中，所述压力参数为所述压缩机的排气压力或吸气压力。
在一些实施例中，在检测压缩机的吸气压力和排气压力是否处于稳态前，还包括：将所述压缩机的排气压力与吸气压力之差调整到预定压差范围内。
在一些实施例中，将所述压缩机的排气压力与吸气压力之差调整到预定压差范围内包括：检测所述压缩机的排气压力与吸气压力；在所述压缩机的排气压力与吸气压力之差不在所述预定压差范围内的情况下，对所述压缩机进行压力调节，以便将所述压缩机的排气压力与吸气压力之差控制在所述预定压差范围内。
在一些实施例中，对所述压缩机进行压力调节包括：在所述压缩机的排气压力与 吸气压力之差小于所述预定压差范围的下限的情况下，对所述压缩机进行第一调节，以提升所述压缩机的排气压力与吸气压力之差。
在一些实施例中，所述第一调节包括：提升所述压缩机的工作频率。
在一些实施例中，在所述压缩机的排气压力与吸气压力之差大于所述预定压差范围的上限的情况下，对所述压缩机进行第二调节，以降低所述压缩机的排气压力与吸气压力之差。
在一些实施例中，所述第二调节包括：降低所述压缩机的工作频率。
在一些实施例中，所述第二调节还包括：调节吸排气旁通机构以进行泄压。
在一些实施例中，在所述压缩机的吸气压力和排气压力处于稳态的情况下，还包括：将所述压缩机的工作频率调整到预定频率范围内，然后执行检测所述压缩机的压力参数的步骤。
在一些实施例中，将所述压缩机的工作频率调整到预定频率范围内包括：检测所述压缩机的工作频率；在所述压缩机的工作频率不在所述预定频率范围内的情况下，对所述压缩机进行频率调节，以便将所述压缩机的工作频率控制在所述预定频率范围内。
在一些实施例中，对所述压缩机进行频率调节包括：在所述压缩机的工作频率小于所述预定频率范围的下限的情况下，提升所述压缩机的工作频率。
在一些实施例中，在所述压缩机的工作频率大于所述预定频率范围的上限的情况下，降低所述压缩机的工作频率。
根据本公开的一个或多个实施例的另一个方面，提供一种压缩机缸体切换检测装置，包括：稳态检测模块，被配置为检测压缩机的吸气压力和排气压力是否处于稳态；速率检测模块，被配置在所述压缩机的吸气压力和排气压力处于稳态的情况下，检测所述压缩机的压力参数，以作为第一参数值；在缸体切换模块对所述压缩机进行缸体切换操作后，经过预定时间再次检测所述压缩机的压力参数，以作为第二参数值；根据所述第一参数值和第二参数值计算所述压力参数的变化速率，在所述压力参数的变化速率大于预定门限的情况下，确定所述压缩机的缸体切换成功；缸体切换模块，被配置为对所述压缩机进行缸体切换操作。
在一些实施例中，所述压力参数为所述压缩机的排气压力或吸气压力。
在一些实施例中，压差调整模块，被配置为在稳态检测模块检测压缩机的吸气压力和排气压力是否处于稳态前，将所述压缩机的排气压力与吸气压力之差调整到预定 压差范围内。
在一些实施例中，压差调整模块被配置为检测所述压缩机的排气压力与吸气压力，在所述压缩机的排气压力与吸气压力之差不在所述预定压差范围内的情况下，对所述压缩机进行压力调节，以便将所述压缩机的排气压力与吸气压力之差控制在所述预定压差范围内。
在一些实施例中，压差调整模块还被配置为在所述压缩机的排气压力与吸气压力之差小于所述预定压差范围的下限的情况下，对所述压缩机进行第一调节，以提升所述压缩机的排气压力与吸气压力之差。
在一些实施例中，所述第一调节包括：提升所述压缩机的工作频率。
在一些实施例中，压差调整模块还被配置为在所述压缩机的排气压力与吸气压力之差大于所述预定压差范围的上限的情况下，对所述压缩机进行第二调节，以降低所述压缩机的排气压力与吸气压力之差。
在一些实施例中，所述第二调节包括：降低所述压缩机的工作频率。
在一些实施例中，所述第二调节还包括：调节吸排气旁通机构以进行泄压。
在一些实施例中，上述装置还包括：频率调节模块，被配置在所述压缩机的吸气压力和排气压力处于稳态的情况下，将所述压缩机的工作频率调整到预定频率范围内，然后指示速率检测模块执行检测所述压缩机的压力参数的操作。
在一些实施例中，频率调节模块被配置为检测所述压缩机的工作频率，在所述压缩机的工作频率不在所述预定频率范围内的情况下，对所述压缩机进行频率调节，以便将所述压缩机的工作频率控制在所述预定频率范围内。
在一些实施例中，频率调节模块被配置为在所述压缩机的工作频率小于所述预定频率范围的下限的情况下，提升所述压缩机的工作频率。
在一些实施例中，频率调节模块还被配置为在所述压缩机的工作频率大于所述预定频率范围的上限的情况下，降低所述压缩机的工作频率。
根据本公开的一个或多个实施例的另一个方面，提供一种压缩机缸体切换检测装置，包括：存储器，被配置为存储指令；处理器，耦合到存储器，处理器被配置为基于存储器存储的指令执行实现如上述任一实施例涉及的方法。
根据本公开的一个或多个实施例的另一个方面，提供一种空调，包括如上述任一实施例涉及的压缩机缸体切换检测装置。
根据本公开的一个或多个实施例的另一个方面，提供一种计算机可读存储介质， 其中，计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如上述任一实施例涉及的方法。
通过以下参照附图对本公开的示例性实施例的详细描述，本公开的其它特征及其优点将会变得清楚。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开一个实施例的压缩机缸体切换检测方法的示例性流程图；
图2为本公开另一个实施例的压缩机缸体切换检测方法的示例性流程图；
图3为本公开一个实施例的压差调整方法的示例性流程图；
图4为本公开又一个实施例的压缩机缸体切换检测方法的示例性流程图；
图5为本公开一个实施例的频率调整方法的示例性流程图；
图6为本公开一个实施例的压缩机缸体切换检测装置的示例性框图；
图7为本公开另一个实施例的压缩机缸体切换检测装置的示例性框图；
图8为本公开又一个实施例的压缩机缸体切换检测装置的示例性框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本公开及其应用或使用的任何限制。基于本公开中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本公开的范围。
同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适 当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。
在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
发明人通过研究发现，在压缩机进行变容过程中，由于无法准确判断压缩机的缸体切换是否成功，因此无法根据压缩机的实际运行状态进行控制，从而无法使压缩机的性能达到最优。
为此，本公开提供一种能够对压缩机的缸体切换进行检测的方案。
图1为本公开一个实施例的压缩机缸体切换检测方法的示例性流程图。在一些实施例中，上述压缩机缸体切换检测方法可由压缩机缸体切换装置执行。
在步骤101，检测压缩机的吸气压力和排气压力是否处于稳态。
在一些实施例中，间隔预定的时间T分别检测压缩机的吸气压力PT1和PT2，若吸气压力变化速率ΔP＝|PT2-PT1|/T小于预定门限，则可确定压缩机的吸气压力处于稳态。
相应地，间隔预定的时间T分别检测压缩机的排气压力PT3和PT4，若排气压力变化速率ΔP＝|PT4-PT3|/T小于预定门限，则可确定压缩机的排气压力处于稳态。
在步骤102，在压缩机的吸气压力和排气压力处于稳态的情况下，检测压缩机的压力参数，以作为第一参数值。
在一些实施例中，压力参数为压缩机的排气压力或吸气压力。
在步骤103，对压缩机进行缸体切换操作。
在一些实施例中，可对压缩机进行单缸至双缸或增加缸体的切换。在另一些实施例中，可对压缩机进行双缸至单缸或减少缸体的切换。压缩机可为多转子压缩机，压缩机的各压缩缸可为等容积缸或不等容积缸。
在步骤104，经过预定时间再次检测压缩机的压力参数，以作为第二参数值。
在步骤105，根据第一参数值和第二参数值计算压力参数的变化速率。
在步骤106，在压力参数的变化速率大于预定门限的情况下，确定压缩机的缸体切换成功。
在本公开上述实施例提供的压缩机缸体切换检测方法中，通过利用压缩机在缸体切换前后的压力参数变化速率，能够方便地确定出压缩机是否成功完成缸体切换。因 此可根据压缩机的实际运行状态进行控制，使压缩机的性能达到最优。
图2为本公开另一个实施例的压缩机缸体切换检测方法的示例性流程图。在一些实施例中，上述压缩机缸体切换检测方法可由压缩机缸体切换装置执行。
在步骤201，将压缩机的排气压力与吸气压力之差调整到预定压差范围内。
通过将压缩机的排气压力与吸气压力之差调整到预定压差范围内，可有助于缸体切换检测的准确性。
图3为本公开一个实施例的压差调整方法的示例性流程图。在一些实施例中，上述压差调整方法可由压缩机缸体切换装置执行。
在步骤301，检测压缩机的排气压力与吸气压力。
在步骤302，在压缩机的排气压力与吸气压力之差不在预定压差范围内的情况下，对压缩机进行压力调节，以便将压缩机的排气压力与吸气压力之差控制在预定压差范围内。
在一些实施例中，在压缩机的排气压力与吸气压力之差小于预定压差范围的下限的情况下，对压缩机进行第一调节，以提升压缩机的排气压力与吸气压力之差。例如，第一调节包括提升压缩机的工作频率。
在另一些实施例中，在压缩机的排气压力与吸气压力之差大于预定压差范围的上限的情况下，对压缩机进行第二调节，以降低压缩机的排气压力与吸气压力之差。例如，第二调节包括降低压缩机的工作频率。此外，第二调节还可包括调节吸排气旁通机构以进行泄压。
例如，预定压差范围为[a1，b1]。若压缩机的排气压力与吸气压力的压差小于a1，则通过压缩机升频等手段来提升压差，以便使压差落入预定压差范围[a1，b1]中。若压差大于b1，通过压缩机降频、开启吸排气侧旁通机构进行泄压等手段来减小压差，以便使压差落入预定压差范围[a1，b1]中。
返回到图2。在步骤202，检测压缩机的吸气压力和排气压力是否处于稳态。
在步骤203，在压缩机的吸气压力和排气压力处于稳态的情况下，检测压缩机的压力参数，以作为第一参数值。
在一些实施例中，压力参数为压缩机的排气压力或吸气压力。
在步骤204，对压缩机进行缸体切换操作。
在步骤205，经过预定时间再次检测压缩机的压力参数，以作为第二参数值。
在步骤206，根据第一参数值和第二参数值计算压力参数的变化速率。
在步骤207，在压力参数的变化速率大于预定门限的情况下，确定压缩机的缸体切换成功。
图4为本公开又一个实施例的压缩机缸体切换检测方法的示例性流程图。在一些实施例中，上述压缩机缸体切换检测方法可由压缩机缸体切换装置执行。
在步骤401，将压缩机的排气压力与吸气压力之差调整到预定压差范围内。
通过将压缩机的排气压力与吸气压力之差调整到预定压差范围内，可有助于缸体切换检测的准确性。
在步骤402，检测压缩机的吸气压力和排气压力是否处于稳态。
在步骤403，在压缩机的吸气压力和排气压力处于稳态的情况下，将压缩机的工作频率调整到预定频率范围内。
通过将压缩机的工作频率调整到预定频率范围内，可有助于缸体切换检测的准确性。
图5为本公开一个实施例的频率调整方法的示例性流程图。在一些实施例中，上述频率调整方法可由压缩机缸体切换装置执行。
在步骤501，检测压缩机的工作频率。
在步骤502，在压缩机的工作频率不在预定频率范围内的情况下，对压缩机进行频率调节，以便将压缩机的工作频率控制在预定频率范围内。
在一些实施例中，在压缩机的工作频率小于预定频率范围的下限的情况下，提升压缩机的工作频率。
在另一些实施例中，在压缩机的工作频率大于预定频率范围的上限的情况下，降低压缩机的工作频率。
例如，预定频率范围为[x1，y1]。若压缩机的工作频率小于x1，则通过压缩机升频等手段来提升工作频率，以便使工作频率落入预定频率范围[x1，y1]中。若工作频率大于y1，通过压缩机降频来降低工作频率，以便使工作频率落入预定频率范围[x1，y1]中。
返回到图4。在步骤404，检测压缩机的压力参数，以作为第一参数值。
在一些实施例中，压力参数为压缩机的排气压力或吸气压力。
在步骤405，对压缩机进行缸体切换操作。
在步骤406，经过预定时间再次检测压缩机的压力参数，以作为第二参数值。
在步骤407，根据第一参数值和第二参数值计算压力参数的变化速率。
在步骤408，在压力参数的变化速率大于预定门限的情况下，确定压缩机的缸体切换成功。
图6为本公开一个实施例的压缩机缸体切换检测装置的示例性框图。如图6所示，该压缩机缸体切换检测装置包括稳态检测模块61、速率检测模块62和缸体切换模块63。
稳态检测模块61被配置为检测压缩机的吸气压力和排气压力是否处于稳态。
在一些实施例中，间隔预定的时间T分别检测压缩机的吸气压力PT1和PT2，若吸气压力变化速率ΔP＝|PT2-PT1|/T小于预定门限，则可确定压缩机的吸气压力处于稳态。
相应地，间隔预定的时间T分别检测压缩机的排气压力PT3和PT4，若排气压力变化速率ΔP＝|PT4-PT3|/T小于预定门限，则可确定压缩机的排气压力处于稳态。
速率检测模块62被配置在压缩机的吸气压力和排气压力处于稳态的情况下，检测压缩机的压力参数，以作为第一参数值。在缸体切换模块63对压缩机进行缸体切换操作后，速率检测模块62经过预定时间再次检测压缩机的压力参数，以作为第二参数值。速率检测模块62根据第一参数值和第二参数值计算压力参数的变化速率，在压力参数的变化速率大于预定门限的情况下，确定压缩机的缸体切换成功。
在一些实施例中，压力参数为压缩机的排气压力或吸气压力。
缸体切换模块63被配置为对压缩机进行缸体切换操作。
在一些实施例中，可对压缩机进行单缸至双缸或增加缸体的切换。在另一些实施例中，可对压缩机进行双缸至单缸或减少缸体的切换。压缩机可为多转子压缩机，压缩机的各压缩缸可为等容积缸或不等容积缸。
在本公开上述实施例提供的压缩机缸体切换检测装置中，通过利用压缩机在缸体切换前后的压力参数变化速率，能够方便地确定出压缩机是否成功完成缸体切换。因此可根据压缩机的实际运行状态进行控制，使压缩机的性能达到最优。
图7为本公开另一个实施例的压缩机缸体切换检测装置的示例性框图。图7与图6的不同之处在于，在图7所示实施例中，还包括压差调整模块64。
压差调整模块64被配置为在稳态检测模块61检测压缩机的吸气压力和排气压力是否处于稳态前，将压缩机的排气压力与吸气压力之差调整到预定压差范围内。
通过将压缩机的排气压力与吸气压力之差调整到预定压差范围内，可有助于缸体切换检测的准确性。
在一些实施例中，压差调整模块64被配置为检测压缩机的排气压力与吸气压力，在压缩机的排气压力与吸气压力之差不在预定压差范围内的情况下，对压缩机进行压力调节，以便将压缩机的排气压力与吸气压力之差控制在预定压差范围内。
在一些实施例中，压差调整模块64还被配置为在压缩机的排气压力与吸气压力之差小于预定压差范围的下限的情况下，对压缩机进行第一调节，以提升压缩机的排气压力与吸气压力之差。例如，第一调节包括提升压缩机的工作频率。
在另一些实施例中，压差调整模块64还被配置为在压缩机的排气压力与吸气压力之差大于预定压差范围的上限的情况下，对压缩机进行第二调节，以降低压缩机的排气压力与吸气压力之差。例如，第二调节包括降低压缩机的工作频率。此外，第二调节还可包括调节吸排气旁通机构以进行泄压。
在一些实施例中，如图7所示，压缩机缸体切换检测装置还包括频率调节模块65。
频率调节模块65被配置在压缩机的吸气压力和排气压力处于稳态的情况下，将压缩机的工作频率调整到预定频率范围内，然后指示速率检测模块62执行检测压缩机的压力参数的操作。
通过将压缩机的工作频率调整到预定频率范围内，可有助于缸体切换检测的准确性。
在一些实施例中，频率调节模块65被配置为检测压缩机的工作频率，在压缩机的工作频率不在预定频率范围内的情况下，对压缩机进行频率调节，以便将压缩机的工作频率控制在预定频率范围内。
例如，频率调节模块65被配置为在压缩机的工作频率小于预定频率范围的下限的情况下，提升压缩机的工作频率。又例如，频率调节模块65还被配置为在压缩机的工作频率大于预定频率范围的上限的情况下，降低压缩机的工作频率。
图8为本公开又一个实施例的压缩机缸体切换检测装置的示例性框图。如图8所示，压缩机缸体切换检测装置包括存储器81和处理器82。
存储器81用于存储指令，处理器82耦合到存储器81，处理器82被配置为基于存储器存储的指令执行实现如图1至图5中任一实施例涉及的方法。
如图8所示，该压缩机缸体切换检测装置还包括通信接口83，用于与其它设备进行信息交互。同时，该装置还包括总线84，处理器82、通信接口83、以及存储器81通过总线84完成相互间的通信。
存储器81可以包含高速RAM存储器，也可还包括非易失性存储器(non-volatile  memory)，例如至少一个磁盘存储器。存储器81也可以是存储器阵列。存储器81还可能被分块，并且块可按一定的规则组合成虚拟卷。
此外，处理器82可以是一个中央处理器CPU，或者可以是专用集成电路ASIC，或者是被配置成实施本公开实施例的一个或多个集成电路。
本公开同时还涉及一种计算机可读存储介质，计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如图1至图5中任一实施例涉及的方法。
本公开还提供一种空调，包括如图6至图8中任一实施例涉及的压缩机缸体切换检测装置。
在一些实施例中，在上面所描述的功能单元模块可以实现为用于执行本公开所描述功能的通用处理器、可编程逻辑控制器(Programmable Logic Controller，简称：PLC)、数字信号处理器(Digital Signal Processor，简称：DSP)、专用集成电路(Application Specific Integrated Circuit，简称：ASIC)、现场可编程门阵列(Field-Programmable Gate Array，简称：FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
本公开的描述是为了示例和描述起见而给出的，而并不是无遗漏的或者将本公开限于所公开的形式。很多修改和变化对于本领域的普通技术人员而言是显然的。选择和描述实施例是为了更好说明本公开的原理和实际应用，并且使本领域的普通技术人员能够理解本公开从而设计适于特定用途的带有各种修改的各种实施例。

Claims (29)

  1. 一种压缩机缸体切换检测方法，包括：
    检测压缩机的吸气压力和排气压力是否处于稳态；
    在所述压缩机的吸气压力和排气压力处于稳态的情况下，检测所述压缩机的压力参数，以作为第一参数值；
    对所述压缩机进行缸体切换操作；
    经过预定时间再次检测所述压缩机的压力参数，以作为第二参数值；
    根据所述第一参数值和第二参数值计算所述压力参数的变化速率；
    在所述压力参数的变化速率大于预定门限的情况下，确定所述压缩机的缸体切换成功。
  2. 根据权利要求1所述的检测方法，其中，
    所述压力参数为所述压缩机的排气压力或吸气压力。
  3. 根据权利要求1所述的检测方法，其中，在检测压缩机的吸气压力和排气压力是否处于稳态前，还包括：
    将所述压缩机的排气压力与吸气压力之差调整到预定压差范围内。
  4. 根据权利要求3所述的检测方法，其中，将所述压缩机的排气压力与吸气压力之差调整到预定压差范围内包括：
    检测所述压缩机的排气压力与吸气压力；
    在所述压缩机的排气压力与吸气压力之差不在所述预定压差范围内的情况下，对所述压缩机进行压力调节，以便将所述压缩机的排气压力与吸气压力之差控制在所述预定压差范围内。
  5. 根据权利要求4所述的检测方法，其中，对所述压缩机进行压力调节包括：
    在所述压缩机的排气压力与吸气压力之差小于所述预定压差范围的下限的情况下，对所述压缩机进行第一调节，以提升所述压缩机的排气压力与吸气压力之差。
  6. 根据权利要求5所述的检测方法，其中，所述第一调节包括：
    提升所述压缩机的工作频率。
  7. 根据权利要求5所述的检测方法，还包括：
    在所述压缩机的排气压力与吸气压力之差大于所述预定压差范围的上限的情况下，对所述压缩机进行第二调节，以降低所述压缩机的排气压力与吸气压力之差。
  8. 根据权利要求7所述的检测方法，其中，所述第二调节包括：
    降低所述压缩机的工作频率。
  9. 根据权利要求8所述的检测方法，其中，所述第二调节还包括：
    调节吸排气旁通机构以进行泄压。
  10. 根据权利要求1-9中任一项所述的检测方法，其中，在所述压缩机的吸气压力和排气压力处于稳态的情况下，还包括：
    将所述压缩机的工作频率调整到预定频率范围内，然后执行检测所述压缩机的压力参数的步骤。
  11. 根据权利要求10所述的检测方法，其中，将所述压缩机的工作频率调整到预定频率范围内包括：
    检测所述压缩机的工作频率；
    在所述压缩机的工作频率不在所述预定频率范围内的情况下，对所述压缩机进行频率调节，以便将所述压缩机的工作频率控制在所述预定频率范围内。
  12. 根据权利要求11所述的检测方法，其中，对所述压缩机进行频率调节包括：
    在所述压缩机的工作频率小于所述预定频率范围的下限的情况下，提升所述压缩机的工作频率。
  13. 根据权利要求12所述的检测方法，还包括：
    在所述压缩机的工作频率大于所述预定频率范围的上限的情况下，降低所述压缩 机的工作频率。
  14. 一种压缩机缸体切换检测装置，包括：
    稳态检测模块，被配置为检测压缩机的吸气压力和排气压力是否处于稳态；
    速率检测模块，被配置在所述压缩机的吸气压力和排气压力处于稳态的情况下，检测所述压缩机的压力参数，以作为第一参数值；在缸体切换模块对所述压缩机进行缸体切换操作后，经过预定时间再次检测所述压缩机的压力参数，以作为第二参数值；根据所述第一参数值和第二参数值计算所述压力参数的变化速率，在所述压力参数的变化速率大于预定门限的情况下，确定所述压缩机的缸体切换成功；
    缸体切换模块，被配置为对所述压缩机进行缸体切换操作。
  15. 根据权利要求14所述的检测装置，其中，
    所述压力参数为所述压缩机的排气压力或吸气压力。
  16. 根据权利要求14所述的检测装置，还包括：
    压差调整模块，被配置为在稳态检测模块检测压缩机的吸气压力和排气压力是否处于稳态前，将所述压缩机的排气压力与吸气压力之差调整到预定压差范围内。
  17. 根据权利要求16所述的检测装置，其中，
    压差调整模块被配置为检测所述压缩机的排气压力与吸气压力，在所述压缩机的排气压力与吸气压力之差不在所述预定压差范围内的情况下，对所述压缩机进行压力调节，以便将所述压缩机的排气压力与吸气压力之差控制在所述预定压差范围内。
  18. 根据权利要求17所述的检测装置，其中，
    压差调整模块还被配置为在所述压缩机的排气压力与吸气压力之差小于所述预定压差范围的下限的情况下，对所述压缩机进行第一调节，以提升所述压缩机的排气压力与吸气压力之差。
  19. 根据权利要求18所述的检测装置，其中，所述第一调节包括：
    提升所述压缩机的工作频率。
  20. 根据权利要求17所述的检测装置，其中，
    压差调整模块还被配置为在所述压缩机的排气压力与吸气压力之差大于所述预定压差范围的上限的情况下，对所述压缩机进行第二调节，以降低所述压缩机的排气压力与吸气压力之差。
  21. 根据权利要求20所述的检测装置，其中，所述第二调节包括：
    降低所述压缩机的工作频率。
  22. 根据权利要求21所述的检测装置，其中，所述第二调节还包括：
    调节吸排气旁通机构以进行泄压。
  23. 根据权利要求14-22中任一项所述的检测装置，还包括：
    频率调节模块，被配置在所述压缩机的吸气压力和排气压力处于稳态的情况下，将所述压缩机的工作频率调整到预定频率范围内，然后指示速率检测模块执行检测所述压缩机的压力参数的操作。
  24. 根据权利要求23所述的检测装置，其中，
    频率调节模块被配置为检测所述压缩机的工作频率，在所述压缩机的工作频率不在所述预定频率范围内的情况下，对所述压缩机进行频率调节，以便将所述压缩机的工作频率控制在所述预定频率范围内。
  25. 根据权利要求24所述的检测装置，其中，
    频率调节模块被配置为在所述压缩机的工作频率小于所述预定频率范围的下限的情况下，提升所述压缩机的工作频率。
  26. 根据权利要求25所述的检测装置，其中，
    频率调节模块还被配置为在所述压缩机的工作频率大于所述预定频率范围的上限的情况下，降低所述压缩机的工作频率。
  27. 一种压缩机缸体切换检测装置，包括：
    存储器，被配置为存储指令；
    处理器，耦合到存储器，处理器被配置为基于存储器存储的指令执行实现如权利要求1-13中任一项的方法。
  28. 一种空调，包括如权利要求14-27中任一项所述的压缩机缸体切换检测装置。
  29. 一种计算机可读存储介质，其中，计算机可读存储介质存储有计算机指令，指令被处理器执行时实现如权利要求1-13中任一项的方法。
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CN104729138A (zh) * 2013-12-23 2015-06-24 珠海格力电器股份有限公司 空调器及其容量变化的判断方法
CN105180372A (zh) * 2015-09-29 2015-12-23 Tcl空调器(中山)有限公司 空调器控制方法及装置
CN106500257A (zh) * 2016-10-27 2017-03-15 广东美的制冷设备有限公司 空调器及其双缸压缩机的控制方法和装置

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