A method and system for diagnosing a squib loop in a restraint control module using a transient response is disclosed in the present application. The system may be used with a low energy actuator (LEA) which is primarily an inductive device. A diagnostic current may be applied to the squib loop for a diagnostic test period and the voltage between the feed line terminal and the return line terminal or the voltage between the return line terminal and the feed line terminal can be monitored at a specific time or times during the test period for the expected response (e.g. peak voltage, rise rate, etc). The current may also be reversed to check the correct polarity of a diode in the LEA.

In various examples, systems and methods are disclosed that accurately identify driver and passenger in-cabin activities that may indicate a biomechanical distraction that prevents a driver from being fully engaged in driving a vehicle. In particular, image data representative of an image of an occupant of a vehicle may be applied to one or more deep neural networks (DNNs). Using the DNNs, data indicative of key point locations corresponding to the occupant may be computed, a shape and/or a volume corresponding to the occupant may be reconstructed, a position and size of the occupant may be estimated, hand gesture activities may be classified, and/or body postures or poses may be classified. These determinations may be used to determine operations or settings for the vehicle to increase not only the safety of the occupants, but also of surrounding motorists, bicyclists, and pedestrians.

In various examples, systems and methods are disclosed that accurately identify driver and passenger in-cabin activities that may indicate a biomechanical distraction that prevents a driver from being fully engaged in driving a vehicle. In particular, image data representative of an image of an occupant of a vehicle may be applied to one or more deep neural networks (DNNs). Using the DNNs, data indicative of key point locations corresponding to the occupant may be computed, a shape and/or a volume corresponding to the occupant may be reconstructed, a position and size of the occupant may be estimated, hand gesture activities may be classified, and/or body postures or poses may be classified. These determinations may be used to determine operations or settings for the vehicle to increase not only the safety of the occupants, but also of surrounding motorists, bicyclists, and pedestrians.

A method to charge a personal-protection-device energy store for operating a personal protection device of a vehicle. The method includes a step of reading in a voltage value of a source energy store of the vehicle. In addition, the method includes a step of ascertaining a charging current for charging the personal-protection-device energy store with power from the source energy store, the charging current being ascertained, using the voltage value read in; and using the charging current for charging the personal-protection-device energy store.

A method to charge a personal-protection-device energy store for operating a personal protection device of a vehicle. The method includes a step of reading in a voltage value of a source energy store of the vehicle. In addition, the method includes a step of ascertaining a charging current for charging the personal-protection-device energy store with power from the source energy store, the charging current being ascertained, using the voltage value read in; and using the charging current for charging the personal-protection-device energy store.

A duplex squib module is provided. The duplex squib module may include a first squib, a second squib, a first active blocking circuit, and a second active blocking circuit: The first active blocking circuit being in series with the first squib. The first active blocking circuit having a transistor in series with a first diode to block current in a first direction. The second active blocking circuit being in series with the second squib. The second active blocking circuit having a transistor in series with a first diode to block current in a second direction opposite of the first direction.

A method of detecting normality of a PWM signal, wherein an error in a pulse-width modulation (PWM) signal is detected using four different self-test logics, and information obtained by categorizing results of detection into failure modes is transmitted to a vehicle component controller, so that the consistency of the PWM signal is determined, a signal safety means is secured, and further, safety standard requirements of the automobile field are satisfied.

Embodiments of the invention include a vehicle telematics system including a telematics device, wherein the telematics device detects, using a processor of a telematics device, a vehicle ignition off event and reconfigures at least one parameter of an accelerometer for a low power mode of operation while in the vehicle ignition off state, and places the telematics device in a sleep mode of operation, wherein an accelerometer generates an interrupt to wake the processor of the telematics device from the sleep mode of operation upon detecting an acceleration event that exceeds a threshold, and the processor of the telematics device analyzes the accelerometer data stored in a FIFO buffer of the accelerometer.

Embodiments of the invention include a vehicle telematics system including a telematics device, wherein the telematics device detects, using a processor of a telematics device, a vehicle ignition off event and reconfigures at least one parameter of an accelerometer for a low power mode of operation while in the vehicle ignition off state, and places the telematics device in a sleep mode of operation, wherein an accelerometer generates an interrupt to wake the processor of the telematics device from the sleep mode of operation upon detecting an acceleration event that exceeds a threshold, and the processor of the telematics device analyzes the accelerometer data stored in a FIFO buffer of the accelerometer.

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.