Overload protection for an actuator of a system for controlling sound propagating through an exhaust system

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United States of America Patent

PATENT NO 10215067
APP PUB NO 20160090885A1
SERIAL NO

14863531

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system (70) for actively controlling sound propagating through exhaust systems (40) includes a controller (90), a sound generator (30), in fluid communication with an exhaust system (40), and an actuator (20), inside the sound generator and receiving a controller control signal for generating sound inside the sound generator to reduce sound inside the exhaust system. The controller identifies an increased exhaust pressure inside the exhaust system based on signals output by an error microphone (50), a temperature sensor (51), an impedance measuring bridge (52), a bus system (53), or a water sensor (54). The controller interrupts a generation of the control signal and/or interrupts an output of the control signal to the at least one actuator and/or reduces a level of the control signal output to the at least one actuator by at least 30% or at least 60% upon determining a presence of an excessive exhaust gas pressure.

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Patent Owner(s)

Patent OwnerAddress
EBERSPACHER EXHAUST TECHNOLOGY GMBH & CO KG66539 NEUNKIRCHEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hölsch, Ralf Epfendorf, DE 4 8
Pommerer, Michael Uhingen, DE 10 55

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