发明名称 |
Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
摘要 |
A diagnostic system includes a controller adapted for coupling to a compressor or electronic stepper regulator valve. The controller produces a variable duty cycle control signal to adjust the capacity of the compressor or valve position of the electronic stepper regulator valve as a function of demand for cooling. The diagnostic system further includes a diagnostic module coupled to the controller for monitoring and comparing the duty cycle with at least one predetermined fault value indicative of a system fault condition and an alert module responsive to the diagnostic module for issuing an alert signal when the duty cycle bears a predetermined relationship to the fault value.
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申请公布号 |
US6467280(B2) |
申请公布日期 |
2002.10.22 |
申请号 |
US20010886592 |
申请日期 |
2001.06.21 |
申请人 |
COPELAND CORPORATION |
发明人 |
PHAM HUNG M.;SINGH ABTAR;CAILLAT JEAN-LUC M.;BASS MARK |
分类号 |
F01C1/02;A47F3/04;F04B49/06;F04C18/02;F04C27/00;F04C28/00;F04C28/02;F04C28/06;F04C28/08;F04C28/18;F04C28/22;F04C28/26;F04C28/28;F25B1/04;F25B5/02;F25B41/04;F25B41/06;F25B49/00;F25B49/02;G05D1/08;G05D23/19;(IPC1-7):F25B49/02 |
主分类号 |
F01C1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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