Apparatus for controlling the rotational speed of an internal combustion engine

Patent · Tue Aug 05 04:00:00 EDT 1986

OSTI ID:5248043

Ueno, M

An apparatus is described for controlling the rotational speed of an internal combustion engine by employing a closed loop, comprising: a first means for producing first data indicative of a target engine speed; a second means for producing second data indicative of the actual engine speed at each instant; a deviation detecting means responsive to the first and second data for detecting the amount of deviation of the actual engine speed from the target engine speed and outputting a deviation signal corresponding to the deviation; a first computing means for computing the absolute value of the deviation; a second computing means for computing a predetermined function of N degrees (Ngreater than or equal to2) of the deviation; means for discriminating the magnitude of the deviation; a selecting means for selecting either the computed result from the first computing means or the result from the second computing means in response to the result of the discrimination of the discriminating means; a generating means for generating a control signal in response to the output from the selecting means; and means responsive to the control signal for adjusting a member for adjusting the speed of the internal combustion engine so that the deviation becomes zero.

• Assignee: Diesel Kiki Co., Ltd.
• Patent Number(s): US 4603668
• OSTI ID: 5248043
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CLOSED-LOOP CONTROL
COMPUTERIZED CONTROL SYSTEMS
CONTROL
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MOTION
ROTATION
SIGNALS
SPEED REGULATORS
VELOCITY