[특허]System and method for controlling a variable-capacity compressor

System and method for controlling a variable-capacity compressor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25B-001/00 F25B-049/00 F25B-049/02 F25B-001/10 F25B-013/00
출원번호	US-0734115 (2015-06-09)
등록번호	US-10018392 (2018-07-10)
발명자 / 주소	Guo, LiYing
출원인 / 주소	Emerson Climate Technologies, Inc.
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 0 인용 특허 : 30

초록 ▼

A climate-control system is provided that includes a variable-capacity compressor unit and a control module controlling the compressor unit. The compressor unit is operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode. The control module may be configured to switch the compressor unit among a shutdown state, the first capacity mode and the second capacity mode based on a demand signal and a number of times that the compressor unit has been switched into the shutdown state within a predetermined time period.

대표청구항 ▼

1. A climate-control system including a variable-capacity compressor unit and a control module controlling the compressor unit, the compressor unit operable in a first capacity mode and in a second capacity mode that is higher than the first capacity mode, the control module configured to switch the compressor unit among a shutdown state, the first capacity mode and the second capacity mode, wherein the control module switches the compressor unit between the first and second capacity modes based on a comparison of a total runtime of the compressor unit with a predetermined low-capacity runtime,wherein the total runtime of the compressor unit is a period of time over which the compressor unit has been running since most recently being in a shutdown state,wherein the control module adjusts the predetermined low-capacity runtime based on a number of times within a predetermined time period that the compressor unit has been switched into the shutdown state due to a demand signal switching from on to off. 2. The climate-control system of claim 1, wherein the control module increases the predetermined low-capacity runtime if the compressor unit has been switched into the shutdown state more than once due to the demand signal switching from on to off during the predetermined time period. 3. The climate-control system of claim 1, wherein the control module is configured to switch the compressor unit from the shutdown state to the first capacity mode if the compressor unit has been switched into the shutdown state one or more times due to the demand signal switching from on to off within the predetermined time period. 4. The climate-control system of claim 1, wherein the control module is configured to switch the compressor unit from the shutdown state to the second capacity mode if the compressor unit has been switched into the shutdown state due to the demand signal switching from on to off zero times within the predetermined time period. 5. The climate-control system of claim 4, wherein switching the compressor unit from the shutdown state to the second capacity mode includes starting the compressor unit in the first capacity mode and switching to the second capacity mode after running in the first capacity mode for less than one minute. 6. The climate-control system of claim 1, wherein the predetermined time period is about forty-five minutes. 7. The climate-control system of claim 1, wherein the control module is configured to execute an override function that switches the compressor unit into the second capacity mode in response to input from a user. 8. A working-fluid circuit comprising: an indoor heat exchanger;an outdoor heat exchanger in fluid communication with the indoor heat exchanger;an expansion device between the indoor and outdoor heat exchangers;a variable-capacity compressor circulating working fluid between the indoor and outdoor heat exchangers; anda control module controlling the compressor and operating the compressor in one of a first capacity mode and a second capacity mode,wherein the control module switches the compressor unit between the first and second capacity modes based on a comparison of a total runtime of the compressor unit with a predetermined low-capacity runtime,wherein the total runtime of the compressor unit is a period of time over which the compressor unit has been running since most recently being in a shutdown state,wherein the control module adjusts the predetermined low-capacity runtime based on a number of times within a predetermined time period that the compressor unit has been switched into the shutdown state due to a demand signal switching from on to off. 9. The working-fluid circuit of claim 1, wherein the control module increases the predetermined low-capacity runtime if the compressor has been switched into the shutdown state more than once due to the demand signal switching from on to off during the predetermined time period. 10. The working-fluid circuit of claim 8, wherein the control module is configured to switch the compressor from the shutdown state to the first capacity mode if the compressor has been switched into the shutdown state due to the demand signal switching from on to off one or more times within the predetermined time period. 11. The working-fluid circuit of claim 8, wherein the control module is configured to switch the compressor from the shutdown state to the second capacity mode if the compressor has been switched into the shutdown state due to the demand signal switching from on to off zero times within the predetermined time period. 12. The working-fluid circuit of claim 8, wherein the control module is configured to execute an override function that switches the compressor into the second capacity mode in response to input from a user.

이 특허에 인용된 특허 (30)

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