Abstract A surge sensory apparatus for detecting and indicating a condition of surging, or rough running, for association with a prime mover is disclosed herein. The present invention senses engine motion and by proper signal processing including any necessary filtering, generates an output signal which may indicate the quality or degree of engine surging. A method of utilizing the surging signal so generated to provide one form of engine control which may be termed a closed loop control is also disclosed. The sensory apparatus of the present invention includes a linear motion transducer, operative to generate an electrical signal indicative of engine motion on the engine mounts which signal is indicative of the torque being developed by the engine.
A roughness sensor for indicating roughness of a prime mover system in excess of a predetermined level comprising: a frame; a prime mover resiliently coupled to said frame; transduCer means having a pair of relatively movable mounting means coupled to the prime mover and to the frame means by the pair of relatively movable mounting means; said transducer means having electrical means interconnecting said mounting means operative to generate a roughness signal which is a linear function of the relative position of said pair of mounting means; and circuit means arranged to receive said signal including means operative to generate an output signal when the mangitude of said roughness signal exceeds a threshold level selected in accordance with the maximum roughness desired for said prime mover.
Claim 2
Dependent Claim
126 words
A roughness sensor for indicating roughness of a prime mover system in excess of a predetermined level comprising: a frame; a prime mover resiliently coupled to said frame; transduCer means having a pair of relatively movable mounting means coupled to the prime mover and to the frame means by the pair of relatively movable mounting means; said transducer means having electrical means interconnecting said mounting means operative to generate a roughness signal which is a linear function of the relative position of said pair of mounting means; and circuit means arranged to receive said signal including means operative to generate an output signal when the mangitude of said roughness signal exceeds a threshold level selected in accordance with the maximum roughness desired for said prime mover.
Claim 3
Dependent Claim
16 words
The system as claimed in claim 1 wherein said transducer means comprise a linear motion transducer.
Claim 4
Dependent Claim
120 words
A roughness sensor for indicating excessive engine roughness comprising: a. an internal combustion engine having a roughness condition the magnitude of which varies in accordance with fluctuations in engine torque, said engine comprising member means movable relative to a selected reference to effect displacements therebetween varying with the magnitude of said fluctuations in engne torque; b. transducer means operatively coupled to said member means and said reference for generating a roughness signal varying with the magnitude of said displacements; and c. utilization means operatively connected to said transducer means for generating an output signal varying with the magnitude of said roughness signal in excess of a predetermined threshold level selected in accordance with the maximum roughness desired for said engine.
Claim 5
Dependent Claim
120 words
A roughness sensor for indicating excessive engine roughness comprising: a. an internal combustion engine having a roughness condition the magnitude of which varies in accordance with fluctuations in engine torque, said engine comprising member means movable relative to a selected reference to effect displacements therebetween varying with the magnitude of said fluctuations in engne torque; b. transducer means operatively coupled to said member means and said reference for generating a roughness signal varying with the magnitude of said displacements; and c. utilization means operatively connected to said transducer means for generating an output signal varying with the magnitude of said roughness signal in excess of a predetermined threshold level selected in accordance with the maximum roughness desired for said engine.