A system is disclosed that performs multi-factor authentication with respect to a hardware assembly. In one example, a method includes: storing a cryptographic identifier of a vehicle hardware assembly; transmitting, to the assembly, a validation message; receiving a response message; decrypting the response message using the identifier; and determining whether the assembly is authenticated.

A method and system for diagnosing a fault condition in common connected squib loops is disclosed. A current source supplies current to the feed terminal for the first squib loop and current is returned through the feed terminal for the second squib loop. The voltage is measured between the feed terminal for the first squib loop and the feed terminal for the second squib loop.

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.

A vehicle safety control system includes: a passive safety device, configured to afford passive safety protection to the vehicle; a fault detection device, configured to detect whether any fault has occurred in the passive safety device and which upon detection of a fault in the passive safety device instructs that fault information informing of such fault in the passive safety device be transmitted to a control device. The vehicle safety system also includes a control device, configured to respond to the fault information that is received, determine a corresponding active safety protection solution and issue a control instruction of such active safety protection solution to an active safety device; and an active safety protection device, configured to respond to control instructions and execute the active safety protection solution.

A control circuit includes (i) at least one voltage output end, each said voltage output end being connected to a filter capacitor, (ii) at least one detection circuit disposed in the control circuit, each said detection circuit being connected to one said voltage output end, and (iii) a fault output apparatus which is configured to, when the detection circuit detects that a fault has occurred in the filter capacitor connected to the voltage output end, output corresponding filter capacitor fault indication information. The power supply output apparatus has no need for a redundant capacitor design, and can determine whether a fault has occurred in the filter capacitor on the basis of the duration of charging of the filter capacitor thus ensuring the reliability and stability of the power supply output apparatus.

A sensing assembly for detecting a temperature of a tire of a vehicle comprises a fender, one or more cavities, and at least one contactless temperature sensor. The fender comprises an outer surface and an inner surface. The inner surface of the fender defines the one or more cavities. The contactless temperature sensor is seated within each of the one or more cavities. Further, the contactless temperature sensor is configured to detect the temperature of the tire of the vehicle.

A preferred embodiment of the invention is directed toward a live fire detection apparatus. The apparatus has a self-contained testing circuit, a MCSU interface, and a user-interface. This embodiment is contemplated to be used as a portable tester that a technician can use on multiple MCSUs to test for a live fire condition prior to connecting the inflator wire harness.

A method and system for diagnosing a fault condition in common connected squib loops is disclosed. A current source supplies current to the feed terminal for the first squib loop and current is returned through the feed terminal for the second squib loop. The voltage is measured between the feed terminal for the first squib loop and the feed terminal for the second squib loop.

A checking device for a data preparation unit, including a preparation element for preparing sensor data for a data transmission; and a comparator for comparing the sensor data with the prepared sensor data; a fault of the data preparation unit being detected in the event that the prepared sensor data do not match the sensor data.

A method for diagnosing aircraft airbag initiators in air bag systems includes: providing a diagnostic circuit per aircraft seat, the diagnostic circuit being in a normally off condition and enabled by a user activation; providing a power supply independent of aircraft power; providing a momentary switch; providing a visual indicator; receiving a signal indicating user activation of the momentary switch; and responsive to receiving the signal: completing a circuit, regulating a current into the diagnostic circuit to prevent a squib from firing during diagnostic evaluation; detecting a voltage; and providing feedback to the user.