Source: http://www.google.com/patents/USRE42006?ie=ISO-8859-1&dq=actionscript
Timestamp: 2014-08-22 16:11:46
Document Index: 430741931

Matched Legal Cases: ['Application No. 04', 'Application No. 05016504', 'Application No. 05016505', 'Application No. 200610128576', 'Application No. 200610128576', 'Application No. 200610128576', 'Application No. 200410085953']

Patent USRE42006 - Adaptive control for a refrigeration system using pulse width modulated duty ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA 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...http://www.google.com/patents/USRE42006?utm_source=gb-gplus-sharePatent USRE42006 - Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressorAdvanced Patent SearchPublication numberUSRE42006 E1Publication typeGrantApplication numberUS 10/760,173Publication dateDec 28, 2010Filing dateJan 16, 2004Priority dateJun 7, 1995Fee statusPaidAlso published asCN1238674C, CN1272171A, CN1308633C, CN1607478A, CN1607478B, CN1664372A, CN1664373A, CN1664473A, CN1664474A, CN1664475A, CN1664476A, CN1920305A, CN1952813A, CN1952813B, CN100344923C, CN100432584C, CN100432585C, CN100513791C, CN100565050C, DE69833266D1, DE69833266T2, EP1025403A1, EP1025403A4, EP1025403B1, EP1489368A2, EP1489368A3, EP1489368B1, EP1598611A2, EP1598611A3, EP1598612A2, EP1598612A3, EP1598613A2, EP1598613A3, EP1598614A2, EP1598615A2, EP1598615A3, US6047557, US6393852, US6408635, US6438974, US6449972, US6467280, US6499305, US6662578, US6662583, US6679072, US7389649, US7419365, US7654098, US20010002239, US20010045097, US20010049942, US20020178737, US20030084672, US20030089119, US20030094004, US20040123612, US20060288715, US20070022771, WO1999017066A1Publication number10760173, 760173, US RE42006 E1, US RE42006E1, US-E1-RE42006, USRE42006 E1, USRE42006E1InventorsHung M. Pham, Abtar Singh, Jean-Luc Caillat, Mark BassOriginal AssigneeEmerson Climate Technologies, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (74), Non-Patent Citations (10), Classifications (71), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetAdaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressorUS RE42006 E1Abstract 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.
a controller adapted for coupling to an electronic stepper regulator valve, said controller producing a variable duty cycle control signal for adjusting a valve position of said electronic stepper regulator valve, in which said duty cycle is a function of demand for cooling; a diagnostic module coupled to said controller for monitoring and comparing said duty cycle with at least one predetermined fault value indicative of a fault condition; and an alert module responsive to said diagnostic module for issuing an alert signal when said duty cycle bears a predetermined relationship to said fault value. 2. The diagnosticA control system of claim 1, wherein said diagnostic module monitors and compares at least one of the following conditionscomprising:
a controller operable to produce a variable duty cycle control signal for controlling a cooling system device in which said duty cycle is a function of demand for cooling; and a diagnostic module associated with said controller and operable to compare said duty cycle with a predetermined value indicative of a system condition and issue a signal when said duty cycle bears a predetermined relationship to a fault value; wherein said diagnostic module monitors at least one of the following conditions:saida valve position of saidan electronic stepper regulator; an error value percentage indicative of the percentage of sampled error within an accepted offset range for a defined period of time; a moving average of said valve position for a defined period of time; a steady state loading percentage set equal to said moving average of said valve position for a defined period of time when said error value percentage is less than fifty percent; a discharge cooling fluid temperature; an evaporator coil inlet temperature; an evaporator coil exit temperature; a moving average of a difference between said discharge cooling fluid temperature and said evaporator coil inlet temperature; a moving average of a difference between said evaporator coil exit temperature and said evaporator coil inlet temperature to approximate a superheat value; and a length of time said evaporator coil exit temperature is less than said evaporator coil inlet temperature during a predefined period of time. 3. The diagnosticcontrol system of claim 1 15, wherein said diagnostic module monitors a percentage of sampled error over a defined period of time.
4. The diagnosticcontrol system of claim 3, wherein said predetermined fault value is an accepted offset range.
5. The diagnosticcontrol system of claim 4, wherein said diagnostic module determines an error value percentage indicative of said percentage of sampled error within said accepted offset range for said defined period of time.
7. The diagnosticcontrol system of claim 6 27, wherein said alert module issues an alert signal when saida valve position of said electronic stepper regulator valve is approximately zero percent for approximately ninety percent of said defined period of time and said error value percentage is less than one hundred percent, said alert signal indicating said electronic stepper regulator valve is over-sized.
8. The diagnosticcontrol system of claim 6 27, wherein said diagnostic module further monitors and compares a superheat value indicative of evaporator superheat.
9. The diagnosticcontrol system of claim 8, wherein said alert module issues an alert signal when said valve position of said electronic stepper regulator valve is approximately one hundred percent for approximately ninety percent of said defined period of time, said error value percentage is approximately zero percent, and said superheat value is approximately greater than 5� F., said alert signal indicating said electronic stepper regulator valve is undersized.
10. The diagnosticcontrol system of claim 8, wherein said diagnostic module further monitors and compares an evaporator coil inlet temperature value indicative of evaporator coil inlet temperature.
11. The diagnosticcontrol system of claim 10, wherein said alert module issues an alert signal when said error value percentage is approximately zero percent, said valve position of said electronic stepper regulator valve is approximately zero percent for approximately one hundred percent of said defined period of time, said evaporator coil inlet temperature value is less than approximately 32� F., and said superheat value is approximately greater than 5� F., said alert signal indicating said electronic stepper regulator valve is stuck open.
12. The diagnosticcontrol system of claim 10, wherein said error value percentage is approximately zero percent, said valve position of said electronic stepper regulator valve is approximately one hundred percent for approximately one hundred percent of said defined period of time, said evaporator coil inlet temperature value is approximately greater than 32� F., and said superheat value is approximately greater than 5� F., said alert signal indicating said electronic stepper regulator valve is stuck closed.
13. The diagnosticcontrol system of claim 10, wherein said diagnostic module further monitors and compares an evaporator coil exit temperature value indicative of evaporator coil exit temperature.
14. The diagnosticcontrol system of claim 13, wherein said alert module issues an alert signal when said valve position of said electronic stepper regulator valve is approximately one hundred percent for approximately one hundred percent of said defined period of time, said error value percentage is approximately zero, said superheat value is approximately less than 5� F., said evaporator coil inlet temperature value is approximately less than 25� F., and said evaporator coil exit temperature value is less than said evaporator coil inlet temperature value for greater than fifty percent of said defined period of time, said alert signal indicating that air flow to an evaporator is blocked or evaporator fans are not operating properly.
CROSS-REFERENCE TO RELATED APPLICATION This is a division of U.S. Ser. No. 09/886,592, filed Jun. 21, 2001, entitled �Adaptive Control For A Refrigeration System Using Pulse Width Modulated Duty Cycle Scroll Compressor;� which is a division of U.S. Ser. No. 09/524,364, filed Mar. 14, 2000 U.S. Pat. No. 6,408,635; which is a division of U.S. Ser. No. 08/939,779, filed Sep. 29, 1997, now U.S. Pat. No. 6,047,557; which is a continuation-in-part of U.S. Ser. No. 08/486,118, filed Jun. 7, 1995, now U.S. Pat. No. 5,741,120, each of which is incorporated herein by reference.
BACKGROUND AND SUMMARY OF THE INVENTION The present invention relates generally to refrigeration systems, compressor control systems and refrigerant regulating valve control systems. More particularly, the invention relates to a refrigeration system employing a pulse width modulated compressor or evaporator stepper regulator controlled by a variable duty cycle signal derived from a load sensor. Preferably an adaptive controller generates the variable duty cycle signal. The compressor has two mechanical elements separated by a seal, and these mechanical elements are cyclically movable relative to one another to develop fluid pressure. The compressor includes a mechanism to selectively break the seal in response to the control signal, (hereby modulating the capacity of the system.
The centroid (the Fuzzy-Logic Output) is calculated as: Centroid = K - ⁢ new � [ ∑ ⁢ μ ⁡ ( x ) � x allx Σ ⁢ ⁢ μ ⁡ ( x ) allx ] where:
(x) is the fuzzy output value for universe of discourse value x. In our example, the output (K_new) becomes Output = 10 � [ 0.25 ⁢ ( 1 ) + 0.75 ⁢ ( 1.2 ) 0.25 + 0.75 ] ≈ 11.50 Once the three steps of fuzzification, rule evaluation, and defuzzification are finished and the output has been calculated, the process is repeated again for new set of Er_new%.
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Summary of the Office Action provided by Goodrich Riquelme Asociados law firm.7Rejection Decision regarding CN 200510064854.7 dated Feb. 6, 2009.8Second Office Action dated Apr. 17, 2009 regarding Application No. 200610128576.1 received from the Patent Office of the People's Republic of China translated by CCPIT Patent and Trademark Law Office.9Third Office Action dated Aug. 21, 2009 regarding Application No. 200610128576.1 received from the Patent Office of the People's Republic of China translated by CCPIT Patent and Trademark Law Office.10Third Office Action dated Oct. 16, 2009 regarding Application No. 200410085953.9 received from the Patent Office of the People's Republic of China (translated by Unitalen Attorneys at Law).Classifications U.S. Classification62/126, 62/217, 62/228.1International ClassificationF25B49/02, F04C27/00, A47F3/04, F25B1/04, G05D1/08, F04C18/02, F25B41/06, F25B41/04, G05D23/19, F01C1/02, F04C28/08, F25B5/02, F04C28/22, F04C28/18, F04C28/02, F04C28/28, F04C28/00, F04C28/26, F25B49/00, F04C28/06, F04B49/06Cooperative ClassificationF25B2700/2106, F25B2341/0653, F25B2700/21174, A47F3/04, F25B2700/21175, F04C2270/015, F25B2600/0261, F04C28/22, F04C23/008, F25B5/02, F04C18/0215, F04C28/28, F04C28/06, F04C28/00, F04C27/005, Y02B30/72, F25B41/043, F25B49/022, F25B1/04, F25B49/005, G05D23/1909, F25B2400/22, F25B2700/1933, F25B41/062, F04C28/265, F25B2700/193, F04C2270/86, F04C28/02, F04C28/08, F25B2700/2117European ClassificationF04C28/08, F25B49/00F, F04C28/26B, A47F3/04, F04C28/22, F25B5/02, F04C28/06, G05D23/19C2, F25B49/02B, F04C18/02B2, F04C28/02, G05D1/08B4, F25B41/04B, F04C28/28, F04C27/00C, F25B1/04, F04C28/00Legal EventsDateCodeEventDescriptionJun 30, 2014FPAYFee paymentYear of fee payment: 12Apr 26, 2007ASAssignmentFree format text: CERTIFICATE OF CONVERSION, ARTICLES OF FORMATION AND ASSIGNMENT;ASSIGNOR:COPELAND CORPORATION;REEL/FRAME:019215/0273Effective date: 20060927Owner name: EMERSON CLIMATE TECHNOLOGIES, INC., OHIORotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google