Pumps – Condition responsive control of pump drive motor – Responsive to pump or pump fluid temperature
Reexamination Certificate
2005-04-07
2009-08-04
Freay, Charles G (Department: 3746)
Pumps
Condition responsive control of pump drive motor
Responsive to pump or pump fluid temperature
C417S044200, C310S239000, C310S06800R
Reexamination Certificate
active
07568893
ABSTRACT:
When an air pump is operated, a brush temperature increase rate stored in an ECU in relation to a discharge pressure of the air pump and a brush temperature is multiplied by a calculation cycle time, and the resultant value is cumulatively added. When the air pump is stopped, a brush temperature decrease rate stored in the ECU in relation to the brush temperature is multiplied by the calculation cycle time, and the resultant value is cumulatively added. Each of the cumulative values read from a map is added to and subtracted from an initial brush temperature value, respectively so as to estimate the brush temperature.
REFERENCES:
patent: 5158436 (1992-10-01), Jensen et al.
patent: 5168415 (1992-12-01), Osuga
patent: 5838591 (1998-11-01), Yamaguchi
patent: 6633104 (2003-10-01), Hershey et al.
patent: 7107762 (2006-09-01), Hirooka
patent: 7305299 (2007-12-01), Yasui et al.
patent: 2008/0278026 (2008-11-01), Kobayashi
patent: 42 44 458 (1993-07-01), None
patent: A 02-303347 (1990-12-01), None
patent: A 5-202889 (1993-08-01), None
patent: A-7-26949 (1995-01-01), None
patent: A-2003-14552 (2003-01-01), None
patent: A 2003-83048 (2003-03-01), None
patent: 2004100525 (2004-04-01), None
patent: A 2004-100525 (2004-04-01), None
Freay Charles G
Oliff & Berridg,e PLC
Toyota Jidosha & Kabushiki Kaisha
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