The Boeing Company

Phuoc D Nguyen

Michael B McAvoy

Joseph Adam Sikora

Bryan P Kesterson

Justin Eugene Hale

Norman F Kirby

Thanh-Ha N Herter

Robert J Crane

George H Hamasaki

Gregory P Owens

A circuit and methods for remote auxiliary power unit startup are presented. A first node is coupled to a ground by action of a momentary switch to initiate an activation, and the first node is coupled to the ground by action of a latching relay in response to the activation. An auxiliary power unit is coupled to a hot battery by action of a bi-polar relay in response to the activation.

DC power architecture for remote APU start

A power control system with a pseudo-power up, an aircraft including the power control system and a method of controlling power in an aircraft. On-board wiring is protected from faults by electronic circuit breakers (ECBs), which may also control AC/DC electrical power supplies of on-board electrical/electronic equipment. A computer processor operating a user interface, e.g., a graphical user interface (GUI), through a display. An on-board store stores the GUI, other computer applications and the current state of each ECB, e.g., in a breaker state table. In a pseudo-power mode up, the stored circuit breaker state is available without providing power to the ECBs and, correspondingly to the coupled on-board electrical systems. When terminated, the system can power off, or proceed to normal power where each ECB is configured according to the breaker state table prior to providing power to protected systems.

Power control system pseudo power-up, aircraft including the power control system and method of controlling power in an aircraft

Systems and methods for presenting information corresponding to circuit breakers and for controlling such circuit breakers are disclosed. In one embodiment, the system can include a menu-driven, pointer-accessible graphical user interface via which an operator can receive information corresponding to circuit breakers, and can automatically change the states of the circuit breakers. Menus of circuit breaker information can be organized by the state of the circuit breaker, the location of the circuit breaker, the bus to which the circuit breaker is coupled, the electrical system to which the circuit breaker belongs, and/or the system or subsystem of which the circuit breaker is a part. In further embodiments, the circuit breaker information can be organized according to custom-made arrangements.

Systems and methods for monitoring and controlling circuit breakers

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Mukilteo, WA, United States of America

Phuoc D Nguyen