Abstract:
An electronic module assembly (EMA) for use in controlling one or more personal restraint systems. A programmed processor within the EMA is configured to determine when a personal restraint system associated with each seat in a vehicle should be deployed. In addition, the programmed processor is configured to perform a diagnostic self-test to determine if the EMA and the personal restraint systems are operational. In one embodiment, results of the diagnostic self-test routine are displayed on a display included on the electronic module assembly. In an alternative embodiment, the results of the diagnostic self-test routine are transmitted via a wireless transceiver to a remote device. The remote device can include a wireless interrogator or can be a remote computer system such as a cabin management computer system.
Abstract:
The external crash attenuation airbag includes an inflatable bladder which is inflatable to an exterior of an aircraft, so that the inflatable bladder is generally located between the aircraft and a crash surface when inflated. The airbag includes a vent configured to burst at a predefined burst pressure, the vent being located along a side portion of the inflatable bladder. The airbag also includes a vent support located approximate the vent, the vent support being configured to prevent deformation and therefore maintain the effectiveness of a venting area of the vent, and the vent support being rigid and annular and includes an upper portion and a lower portion that are hinged together around the vent.
Abstract:
A buoyancy system (10) for an aircraft (1), the buoyancy system (10) being provided with at least one inflatable float (15). The buoyancy system (10) has at least one inflator (25) and at least one actuator (30) interposed between said inflator (25) and a float (15), said actuator (30) having a cylinder (35) and a rod (40) partially received in said cylinder (35). Said rod (40) is secured to a piston (50) defining a first chamber (61) within said cylinder (35) and in fluid flow communication with the inflator (25), and a second chamber (62) within said rod (40) and in fluid flow communication with said float (15), and said piston (50) has a channel (63) to put the first chamber (61) into fluid flow communication with the second chamber (62), said deployment device (20) having a shutter (70) for shutting said channel (63).
Abstract:
A crash attenuation system has an airbag inflatable generally adjacent to an exterior of the aircraft. The system includes a gas generator in fluid communication with an interior of the airbag. The system also includes a vent system having a vent passage supported by the aircraft, the vent passage being configured to allow gas to escape from within the airbag during an impact. The vent system also includes an actuator door for sealing the vent passage, thereby preventing gas from leaving the airbag. The actuator door is actuated by an actuator, the actuator being in fluid communication with the gas generator through an actuator duct. The system operates such that deployment of gas from the gas generator causes the actuator to inflate, thereby causing the actuator door to seal the vent passage. The gas generator is configured to re-inflate the airbag after the actuator door seals the vent passage.
Abstract:
An occupant protection system for an aircraft comprising a sensor system for sensing flight condition information and a control system, which includes an impending crash detection system and an impact detection system. The impending crash detection system receives flight information from the sensors determines whether a crash is likely to occur. If an impending crash is detected, the impending crash detection system activates impact modes of a first group of aircraft systems. The impact detection system receives flight information from the sensor system and determines whether an impact has occurred or is occurring. If an impact is detected, the impact detection system activates impact modes of a second group of aircraft systems.
Abstract:
Structure mounted airbag assemblies and associated systems and methods are described herein. An airbag system configured in accordance with an embodiment of the present disclosure can include, for example, a housing having a cavity and an opening in communication with the cavity, an airbag assembly within the cavity, and an inflator operably coupled to the airbag assembly. The airbag assembly can include an airbag configured to deploy through the opening of the housing during a crash event. The airbag system can further include a door removably positioned across the opening and configured to move away from the opening during airbag deployment. The housing can be affixed to an interior portion of an aircraft, forward of and offset from an aircraft seat.
Abstract:
Electronics module assemblies (“EMAs”) for inflatable personal restraints and associated systems are described herein. An EMA configured in accordance with an embodiment of the present technology can include, for example, a housing having a body portion, cover portion that attaches to the body portion to form an enclosure, and protrusion extending outwardly from the cover portion. The protrusion can have an outer boundary at which the protrusion projects away from the cover portion. The EMA can further include a crash sensor within the enclosure in an area defined by the outer boundary of the protrusion. The protrusion can form an envelope of space around the crash sensor that defines a minimum distance an external object with a magnetic field can come to the crash sensor without activating it. The EMA can optionally include a magnetic field configured to disable the crash sensor upon the detection of an external magnetic field.
Abstract:
A restraint system for occupants of a vehicle, comprising a belt; an airbag unit arranged on the belt, wherein the positions of the belt and the airbag unit can be shifted with respect to each other; an airbag in the airbag unit; and means for securing the position of the airbag on the belt, i.e., means by which the airbag and the belt can be fastened together upon deployment of the airbag without the possibility of a shift in their relative positions.
Abstract:
The external crash attenuation airbag includes an inflatable bladder which is inflatable to an exterior of an aircraft, so that the inflatable bladder is generally located between the aircraft and a crash surface when inflated. The airbag includes a vent configured to burst at a predefined burst pressure, the vent being located a side portion of the inflatable bladder. The airbag also includes a vent support located approximate the vent, the vent support being configured to prevent deformation and therefore maintain the effectiveness of a venting area of the vent.
Abstract:
A method of activating protection means (1) via activator means (3) in order to protect the physical integrity of an occupant of an aircraft (10) during an accident, the aircraft being associated with a rectangular coordinate system comprising a longitudinal axis (X), a transverse axis (Y), and an elevation axis (Z), in which method said protection means (1) are activated when, firstly the acceleration of said aircraft (10) along a particular axis (X, Y, Z) of the coordinate system of the aircraft (10) is greater than a first variable threshold, and secondly when the speed variation of the aircraft along said particular axis (X, Y, Z) is greater than a second variable threshold, the first variable threshold and the second variable threshold each varying as a function of the stage of flight of the aircraft (10) in such a manner as to be minimized during predetermined accident-prone stages of flight.