System and method for controlling the stowage of jet engine thrust reversers

A system for controlling one or more jet engine thrust reversers, comprising:

• moving means for moving one or more moveable thrust reverser components between a deployed position and a stowed position;
• position sensing means for sensing at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• and
• controller means for causing the moving means to move at a variable speed in response to the position sensing means sensing that the predetermined position is attained.

A system for controlling one or more jet engine thrust reversers, comprising:

• an electric motor;
• one or more moveable thrust reverser components coupled to the motor, the components moveable between a deployed position and a stowed position;
• a position sensor operable to provide a position signal at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• a controller circuit operably coupled to the motor and responsive to the position signal to rotate the motor at a variable speed;
• and
• a timer circuit having an output coupled to the controller circuit, the timer circuit being operable to cause the controller circuit to remove power supplied to the motor a predetermined time period after the one or more moveable thrust reverser components attain the predetermined position.

A system for controlling one or more jet engine thrust reversers, comprising:

• an electric motor;
• one or more moveable thrust reverser coupled to the motor, the components moveable between a deployed position and a stowed position;
• a position sensor operable to provide a position signal at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• a controller circuit including:
• (a) a motor speed command input port coupled to receive one of at least a low speed command signal and a high speed command signal,
• (b) a motor current command input port coupled to receive one of at least a high current command signal and a low current command signal, and
• (c) an output port operably coupled to the motor and being:
• (i) responsive to the position signal to rotate the motor at a variable speed and (ii) responsive to the current command signal to limit a current magnitude supplied to the motor;
• and
• a timer circuit including an output coupled to the controller, the timer circuit being operable to cause the controller circuit to remove power provided to the motor a predetermined time period after the one or more moveable thrust reverser components attain the predetermined position,
• wherein the low speed command signal and the low current command signal are received in response to the position sensor sensing that the predetermined position is attained.

A method of controlling one or more jet engine thrust reversers, comprising:

• causing movement of one or more moveable thrust reverser components toward at least a stowed position;
• sensing at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• and
• selectively varying a speed of the movement of the one or more moveable thrust reverser components in response to the one or more moveable thrust reverser components attaining the predetermined position.

A method of controlling one or more jet engine thrust reversers, comprising:

• causing movement of one or more moveable thrust reverser components toward at least a stowed position;
• sensing at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• selectively varying a speed of the movement of the one or more moveable thrust reverser components in response to the one or more moveable thrust reverser components attaining the predetermined position;
• and
• disabling the movement of the one or more moveable thrust reverser components a predetermined time period after the predetermined position is attained.

A method of controlling one or more jet engine thrust reversers, comprising:

• causing movement of one or more moveable thrust reverser components toward at least a stowed position;
• sensing at least when the one or more moveable thrust reverser components attain a predetermined position relative to the stowed position;
• selectively varying a speed of the movement of the one or more moveable thrust reverser components in response to selectively providing one of at least a high speed command and a low speed command;
• selectively varying a magnitude of power causing the movement of the one or more moveable thrust reverser components in response to selectively providing a high power command and a low power command;
• and
• disabling the movement of the one or more moveable thrust reverser components a predetermined time period after the predetermined position is attained,
• wherein the low speed command and the low power command are each selectively provided in response to the one or more moveable thrust reverser components attaining the predetermined position.