Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Patent
1989-03-31
1990-03-27
Wolfe, Willis R.
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
123361, F02D 908
Patent
active
049111256
ABSTRACT:
Disclosed is a method and apparatus for controlling a throttle valve driven by a D.C. motor in an internal combustion engine, in which the D.C. motor is driven until a valve position sensor detecting the angular position of the throttle valve generates an output signal which coincides with the output signal of an accelerator pedal sensor detecting the amount of depression of an accelerator pedal of a vehicle. The value of motor current required for causing very slight displacement of a return spring provided for returning the throttle valve toward a predetermined angular position is utilized for automatically compensating various factors of fluctuation attributable to friction, inertia, etc. of means driving the throttle valve. A small-capacity microprocessor is used to control the D.C. motor so that the throttle valve can operate with high accuracy and high-speed response capability without being adversely affected by changes in the operating condition as well as secular variations.
REFERENCES:
patent: 4353339 (1982-10-01), Collonia
patent: 4508078 (1985-04-01), Takeuchi et al.
patent: 4601271 (1986-07-01), Ejiri et al.
patent: 4781162 (1988-11-01), Ishikawa et al.
patent: 4809659 (1989-03-01), Tamaki et al.
Horikoshi Shigeru
Ohta Kenji
Sugawara Hayato
Hitachi , Ltd.
Hitachi Automotive Engineering Co. Ltd.
Wolfe Willis R.
LandOfFree
Method and apparatus for controlling throttle valve in internal 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 controlling throttle valve in internal , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling throttle valve in internal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1643901