Some described techniques address issues of latency and lengthy processing times associated with conventional redundant sensor measurement systems that rely upon digital transmission protocols by implementing a diverse analog sensor interface architecture. Additional described techniques provide a redundant signaling solution to achieve signaling diversity using a combination of analog and digital sensor interface architectures. The described architectures may advantageously use a number of sensor measurement paths that may be independent of one another or share any suitable number of common components to provide varying levels of redundancy. When redundant analog sensor interface architectures are implemented, the analog interfaces may also provide signal diversity with respect to the use of different types of analog transmission protocols, which may include different signaling interfaces (e.g. differential versus single-ended), different transmission interfaces (e.g. voltage versus current interfaces), and/or the use of different signalization schemes.

A charging system for charging a battery includes a rectifier that rectifies power received from an AC power source into a DC signal for charging the battery and an arc detection circuit that measures noise added to the DC signal and generates a measured noise signal. A processor analyzes the measured noise signal to detect a series-arc and, when a series-arc is detected, causes a shunt of the AC current of the rectifier for a period of time to reduce a DC output of the rectifier toward zero. A passive arc detection circuit is inserted between the rectifier and the battery and includes a filter capacitor and a sense resistor in parallel with a smoothing capacitor. A voltage across the sense resistor is amplified, digitized, and outputted as the measured noise signal. The DC signal may be scanned to obtain the measured noise signal in different frequency windows.

An electrical test device may include a power supply, a conductive probe element, and a spectral analysis block. The power supply may be connected to an external power source. The conductive probe element may be connected to the power supply and may be configured to be energized by the power supply. The probe element may be configured to be placed in contact with an electrical system under test and apply an input signal containing current for measuring at least one parameter of the electrical system. The spectral analysis block may be connected to the probe element and may be configured to receive an output signal from the electrical system in response to the application of the current to the electrical system. The spectral analysis block may be configured to analyze frequency spectra of the output signal and detect a broadband increase in energy of the frequency spectra above a predetermined energy threshold. The broadband increase in energy may be representative of the occurrence of arcing in the electrical system.

An electromagnetic stirrer includes a mast; and at least one vane presenting a surface reflecting radio and/or microwave waves, the at least one vane presenting at least two non-coplanar regions. The mast presents a vane attachment zone, and the at least one vane is attached to the vane attachment zone. At least a part of the mast and/or of the at least one vane is inflatable.

A computer-implemented method of analyzing an electrical wiring harness assembly comprises receiving, via a processing element, a test result associated with the electrical wiring harness assembly; determining, via the processing element, a probable error type based on the test result; retrieving from a memory element, via the processing element, a plurality of natural language terms associated with the probable error type, each of the plurality of natural language terms having a corresponding phrase order value; and reporting, via a user interface, each of the plurality of natural language terms in an order according to the phrase order values.

A device for testing a battery, having a transport system, wherein the transport system is configured for receiving the battery, for transporting the battery to a test position, and for transporting the battery out of the test position. The device also includes an interface configured to supply the battery arranged in the test position with electric power and configured to supply the battery arranged in the test position with gas.

A measuring apparatus ascertains measurement information relating to an input voltage. The measuring apparatus contains an operational amplifier having first and second inputs, and an output for providing the measurement information. The measuring apparatus further has a first input node for coupling to a first pole of the input voltage, and a first isolation resistor which connects the first input node to the first input of the operational amplifier. Moreover, the measuring apparatus contains a second input node for coupling to a second pole of the input voltage, and a second isolation resistor which connects the second input node to the second input of the operational amplifier. The measuring apparatus further has a feedback resistor which connects the output of the operational amplifier to the first input of the operational amplifier, and a reference resistor which connects the second input of the operational amplifier to a reference potential.

An electronic control unit of an electric vehicle is configured to, in a case of making a welding diagnosis of a charging relay with an external power supply device not being connected to a charging inlet, start the welding diagnosis when a vehicle speed becomes equal to or higher than a first vehicle speed, interrupt the welding diagnosis when the vehicle speed becomes equal to or lower than a second vehicle speed during the welding diagnosis, and resume the welding diagnosis when the vehicle speed becomes equal to or higher than the first vehicle speed during the interruption of the welding diagnosis. The second vehicle speed is equal to or lower than the first vehicle speed.

Provided is an electronic control unit capable of performing a high-accurate failure diagnosis in a short time as an electronic control unit having a failure diagnosis function. A load drive circuit that drives a load, a control circuit that controls the load drive circuit, and a diagnosis circuit that diagnoses an output state of the load drive circuit and outputs a diagnostic result to the control circuit are provided. The diagnosis circuit outputs a diagnosis completion flag indicating whether or not there is a diagnosis opportunity to the control circuit.

A charging system for charging a battery includes a rectifier that rectifies power received from an AC power source into a DC signal for charging the battery and an arc detection circuit that measures noise added to the DC signal and generates a measured noise signal. A processor analyzes the measured noise signal to detect a series-arc and, when a series-arc is detected, causes a shunt of the AC current of the rectifier for a period of time to reduce a DC output of the rectifier toward zero. A passive arc detection circuit is inserted between the rectifier and the battery and includes a filter capacitor and a sense resistor in parallel with a smoothing capacitor. A voltage across the sense resistor is amplified, digitized, and outputted as the measured noise signal. The DC signal may be scanned to obtain the measured noise signal in different frequency windows.