Inflatable personal restraint systems

A personal restraint system for use in an aircraft, the personal restraint system comprising:

• an airbag;
• an ignitor that is configured to inflate the airbag when activated;
• a test circuit configured, when activated manually, to send a test request;
• and
• an electronics module assembly that is configured to control the inflation of the airbag,
• wherein the electronics module assembly includes:
• a first current path extending between a battery and the ignitor,
• wherein, upon receipt of a signal from a crash sensor, the first current path is selectively completed to activate the ignitor, and
• a second current path extending between the battery and the ignitor,
• wherein the second current path is different than the first current path, and wherein, upon receipt of the test request from the test circuit, the second current path is selectively completed to test the ability of the electronics module assembly to activate the ignitor, and
• wherein the second current path includes a resistance selected to limit current in the second current path to a level that prevents the ignitor from activating when the second current path is completed.

A personal restraint system for use in an aircraft, the personal restraint system comprising:

• an airbag;
• an ignitor that is configured to inflate the airbag when activated;
• a test circuit configured, when activated wirelessly, to send a test request;
• and
• an electronics module assembly that is configured to control the inflation of the airbag,
• wherein the electronics module assembly includes:
• a first current path extending between a battery and the ignitor,
• wherein, upon receipt of a signal from a crash sensor, the first current path is selectively completed to activate the ignitor, and
• a second current path extending between the battery and the ignitor,
• wherein the second current path is different from the first current path, and wherein upon receipt of the test request from the test circuit, the second current path is selectively completed to test the ability of the electronics module assembly to activate the ignitor, and
• wherein the second current path includes a resistance selected to limit current in the second current path to a level that prevents the ignitor from activating when the second current path is completed.

An electronics module assembly, comprising:

• a first electrical path between a battery and an ignitor, wherein the first electrical path is selectively completed based at least in part on activation of a crash sensor such that current along the first electrical path activates the ignitor;
• a first transistor electrically coupled to the first electrical path, wherein the first transistor is controllable to selectively pass current along the first electrical path;
• a second electrical path between the battery and the ignitor that is different than the first electrical path, wherein the second electrical path is selectively completed to test whether the battery stores a sufficient amount of charge to activate the ignitor, wherein the second electrical path includes a resistance configured to limit current along the second electrical path to a level insufficient to activate the ignitor;
• and
• a second transistor electrically coupled to the second electrical path, wherein the second transistor is controllable to selectively pass current along the second electrical path.