Rolls-royce Corporation

Honeywell International Inc.

Alliedsignal Inc.

Thomson Licensing S.a.

Genentech, Inc.

James Wolter Ernst

Mohamed F Younis

Yan Wu

Mark S Dennis

Gregory Alan Lazar

Yin Sheng Zhang

Ryan Jefferson Watts

William John Testin

Christoph Spiess

Joy Yu Zuchero

Jasvinder Atwal

Yongmei Chen

Hok Seon Kim

Junichiro Sonoda

Scott Stawicki

Thomas Gilbert Roden, Iii

Robert Zeller

Jessica Couch

Claudio Zizzo

John Ryan Schnellenberger

Jeffrey Xiaofeng Zhou

Shawn Thomas Collins

Lawrence Mitchell Smilg

Dar-Tzen Peng

Louis P Bolduc

A gas turbine engine system includes a gas turbine engine, an electric machine, a fuel pump, and a clutch arranged to selectively couple and decouple the electric machine and the fuel pump with the gas turbine engine. Control circuitry may control the clutch in response to data signals indicating engine operating information, current operating conditions, and/or other information.

Gas turbine engine system having a disengageable electric machine

A method for determining the speed of at least one rotating fan, such as a propeller, through sensing pressure waves generated by the blades of the fan. An apparatus operable to execute the method is also disclosed. The apparatus includes a fan having a hub portion and a plurality of blades extending radially outward from the hub portion. The apparatus also includes an engine operable to rotate the fan about an axis of rotation. The apparatus also includes a sensor spaced from the fan along the axis of rotation. The sensor is positioned to sense at least one physical condition that is external of the engine and is changed by rotation of the plurality of blades. The sensor is operable to emit a signal corresponding to at least one physical condition. The apparatus also includes a processor operably engaged with the engine and the sensor. The processor is operable to receive the signal from the sensor and change the operation of the engine in response to the signal to change a speed of the fan.

Determining fan parameters through pressure monitoring

A reconfigurable FADEC includes a reconfigurable CPU configured for performing digital computing functions. A reconfigurable MSPD communicates with the CPU and is configured for performing analog I/O functions. A data bus is coupled to the CPU and the MSPD. The data bus is configured for connecting the CPU and the MSPD to an external connector.

Reconfigurable FADEC with flash based FPGA control channel and ASIC sensor signal processor for aircraft engine control

Power supply

An integrated circuit chip for interfacing a digital computer to sensors and controlled devices can be configured to accept and provide a variety of analog and discrete input and output signals. The circuit includes a plurality of signal conditioning cells, a plurality of signal conversion cells, and input and output signal multiplexors.

Integrated circuit for conditioning and conversion of bi-directional discrete and analog signals

An Input/Output device has programmable signal conditioning and signal control circuitry capable of receiving signals, scaling the received signals to a predetermined voltage range, determining signal type for each of the received signals, and controlling input/output circuitry of the programmable signal conditioning and signal control circuitry for accessing input signals and generating output signals. The I/O device further includes conversion circuitry for receiving the output signals and converting the output signals from analog to digital to enable these signals to be digitally processed, and also receives digitally processed signals, converts the digitally processed signals to analog signals, and transmits the analog signals as input signals to the programmable signal conditioning and signal control circuitry. Bus interface logic circuitry coupled to the programmable signal conditioning and signal control circuitry for interfacing the I/O device with a bus for transferring information to and from the I/O device is also included. The I/O device may be provided with high current and/or voltage conditioning circuitry for conditioning the signals within current and voltage ranges which are tolerable to microelectronics of the programmable signal conditioning and signal control circuitry; and signal specific conditioning circuitry for conditioning the signals to match the electrical characteristics of the programmable signal conditioning and signal control circuitry.

Architecture for an input and output device capable of handling various signal characteristics

A stand alone Redundancy Management System (RMS) provides a cost-effective solution for managing redundant computer-based systems in order to achieve ultra-high system reliability, safety, fault tolerance, and mission success rate. The RMS includes a Cross Channel Data Link (CCDL) module and a Fault Tolerant Executive (FE) module. The CCDL module provides data communication for all channels, while the FTE module performs system functions such as synchronization, data voting, fault and error detection, isolation and recovery. System fault tolerance is achieved by detecting and masking erroneous data through data voting, and system integrity is ensured by a dynamically reconfigurable architecture that is capable of excluding faulty nodes from the system and re-admitting healthy nodes back into the system.

Method and apparatus for managing redundant computer-based systems for fault tolerant computing

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Columbia, MD, United States of America

James Wolter Ernst