Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Reexamination Certificate
2005-01-04
2005-01-04
Solis, Erick (Department: 3747)
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
C123S689000
Reexamination Certificate
active
06837217
ABSTRACT:
A method is provided for easily avoiding undesirable effects on various physical values due to the change in temperature of a motor for driving a throttle valve without causing secondary problems. A technique is also provided for measuring the temperature of the motor electrically. The method uses a compensation device for correcting the power supply to the motor by detecting the impedance of the motor windings and/or the change in the motor temperature. The temperature of the motor is estimated from the current and voltage to the motor.
REFERENCES:
patent: 4759329 (1988-07-01), Nobuo et al.
patent: 5333584 (1994-08-01), Kamio et al.
patent: 5406920 (1995-04-01), Murata et al.
patent: 6098594 (2000-08-01), Kowatari et al.
patent: 6499461 (2002-12-01), Kubota et al.
patent: 6510839 (2003-01-01), Pursifull
patent: 20030084873 (2003-05-01), Ishida et al.
patent: 20030136377 (2003-07-01), Kowatari et al.
patent: 61-138852 (1986-06-01), None
patent: 2-256839 (1990-10-01), None
patent: 6-88543 (1994-03-01), None
patent: 8-303285 (1996-11-01), None
patent: 9-317538 (1997-12-01), None
Hoshino Masatoshi
Kamimura Yasuhiro
Marumoto Katsuji
Oosuga Minoru
Sasaki Yasushi
Crowell & Moring LLP
Hitachi , Ltd.
Solis Erick
LandOfFree
Method and apparatus for motor-driven throttle valve,... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for motor-driven throttle valve,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for motor-driven throttle valve,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3370653