Abstract An electronic governor for injection-type internal combustion engines intended to electrically detect changes in revolution speed, convert the detected information into an electric control current, and therewith operate an electromagnetic actuating section; on the other hand, to similarly detect the displacement of the fuel adjusting rod, feed back the detected information temporarily to the control section through a differentiating circuit, whose time constant corresponds to the engine, thereby stabilizing the engine speed; and, furthermore, to similarly detect also each displacement of the fuel adjusting rod due to a change in engine load, feed back the detected information to the engine speed setting section, in order to provide a control performance that eliminates the engine speed regulation.
An electronic governor for a fuel injection type internal combustion engine, said governor comprising a first monostable multivibrator circuit for generating a pulse output in accordance with the rotational speed of the engine and a selected speed setting, a second monostable multivibrator circuit triggered responsive to the output of said first monostable multivibrator circuit, a third monostable multivibrator circuit triggered responsive to the output of said second monostable multivibrator circuit, an AND gate having first and second inputs respectively connected to the outputs of said first and third monostable multivibrator circuits, integrator and amplifier means for integrating and amplifying the output of said AND gate circuit, and means responsive to the output of said integrator and amplifier means for controlling positioning of a fuel regulating rod.
Claim 2
Dependent Claim
126 words
An electronic governor for a fuel injection type internal combustion engine, said governor comprising a first monostable multivibrator circuit for generating a pulse output in accordance with the rotational speed of the engine and a selected speed setting, a second monostable multivibrator circuit triggered responsive to the output of said first monostable multivibrator circuit, a third monostable multivibrator circuit triggered responsive to the output of said second monostable multivibrator circuit, an AND gate having first and second inputs respectively connected to the outputs of said first and third monostable multivibrator circuits, integrator and amplifier means for integrating and amplifying the output of said AND gate circuit, and means responsive to the output of said integrator and amplifier means for controlling positioning of a fuel regulating rod.
Claim 3
Dependent Claim
50 words
An electronic governor as claimed in claim 1 further comprising oscillator circuit means the output frequency of which is varied responsive to the displacement of the fuel regulating rod and means for connecting the output of said oscillator circuit means to control the output of said integrator and amplifier means.
Claim 4
Dependent Claim
31 words
An electronic governor as claimed in claim 2 further comprising means for connecting the output of said oscillator circuit means to control the speed setting of said first monostable multivibrator circuit.