Abstract: A battery monitoring apparatus includes an electric power supply terminal connected with a first electrical path, a voltage input terminal connected with a second electrical path, a signal control unit connected with a third electrical path, a response signal input terminal connected with a fourth electrical path, and a calculating unit. The signal control unit is configured to cause a predetermined AC signal to be outputted from a storage battery with the storage battery itself being an electric power source for the output of the predetermined AC signal. The calculating unit is configured to calculate, based on a response signal of the storage battery to the predetermined AC signal, a complex impedance of the storage battery. Moreover, at least one of the first to the fourth electrical paths is merged with at least one of the other electrical paths into an electrical path that is connected to the storage battery.

Abstract: A capacitive detection device that may include at least one electrode of a capacitive sensor, an alternating voltage source, a device for measuring a complex value of impedance or admittance between the detection electrode and an electrical circuit reference point and a calibration resistor, and a switching device arranged so as to connect the voltage source to the electrode, in the measurement mode, and to connect the voltage source to the calibration resistor and disconnect the voltage source from the electrode, in the calibration mode. The measuring device is arranged so as to measure a first complex value of the calibration resistor, during operation in the calibration mode; to measure a second complex value between the electrode and the electrical circuit reference point during operation in measurement mode, and to correct the second measured complex value according to the first measured complex value.

Abstract: In a method for inspecting the insulation property of a secondary battery by connecting an external DC power supply to the secondary battery charged with an initial charge amount and evaluating the insulation property of the secondary battery based on a converging state of a power-supply current, when a charge amount at which an inclination of a tangent to a charge amount—battery voltage curve representing a relationship between the charge amount and a battery voltage of the secondary battery is smallest is assumed as a minimum-inclination charge amount, and the inclination of the tangent at the minimum-inclination charge amount is assumed as a minimum inclination (?L), the initial charge amount is selected from a range of the charge amount in which the inclination is two or more times the minimum inclination.

Abstract: An embodiment of the present disclosure relates to a method of detection of a touch contact by a sensor including a first step of comparison of a voltage with a first voltage threshold; and a second step of comparison of the voltage with a second voltage threshold, the second step being implemented if the first voltage threshold has been reached within a duration shorter than a first duration threshold, the second voltage threshold being higher than the first voltage threshold.

Abstract: Disclosed are a soil monitoring sensor and a method of operating the same. The soil monitoring sensor includes a first probe formed to extend in a first direction, and including a first electrode and a second electrode; a first resonance circuit connected to the first electrode and the second electrode of the first probe, and configured such that a first AC signal is applied thereto; a second resonance circuit having the same impedance as the first resonance circuit, and configured such that a second AC signal is applied thereto; and a determination circuit configured to receive a first electrical signal formed in the first resonance circuit, to receive a second electrical signal formed in the second resonance circuit, and to generate a first determination value for the state of the soil based on the first resonant frequency and the second resonant frequency.

Abstract: A circuit carrier is configured to be mounted to a battery system. The circuit carrier includes a circuit carrier board having a first region, a second region, and a third region. The first region is configured to receive a shunt resistor, the third region is configured to receive further electronic components, and the first region and the third region being separated from each other by the second region. The second region is a flexible connection between the first region and the third region and includes a spring-like structure formed from the circuit carrier board.

Abstract: A method and system for optimizing a magnetic resonance imaging (MRI) protocols to improve MRI value are described herein. An example method includes selecting an imaging sequence, selecting at least one objective function from a plurality of objective functions, simulating a relationship between controllable acquisition variables and the objective functions, trade-offing the influence of the controllable acquisition variables for MRI value in whole k-space acquisition to determine optimal acquisition condition, acquiring at least one MR image using the optimal acquisition condition, receiving or estimating outcomes related to the at least one MR image, and evaluating an MR image value for the MR image based on the outcomes.

Abstract: Disclosed herein are a soil moisture sensor and an operating method thereof. The soil moisture sensor includes a first probe including a pair of first electrodes extending in a first direction; a first resonance circuit connected to the pair of first electrodes of the first probe through a pair of first ports, and configured such that a first AC signal is applied thereto; a second resonance circuit having the same impedance as the first resonance circuit, and configured such that a second AC signal having the same characteristics as the first AC signal while being a reference AC signal is applied thereto; and a determination circuit configured to receive a first electrical signal and a second electrical signal and to determine the moisture in the soil based on the first resonant frequency of the first electrical signal and the second resonant frequency of the second electrical signal.

Abstract: Embodiments described herein generally relate to the modification of State of Charge (SoC) calculations within electric vehicles (EVs). A database of data points may be generated based on characteristics of a battery cell at various measured SoCs within a controlled environment. Subsequently, during the operation of an EV, a battery management system (BMS) within the EV may collect various operating data points. The collected operating data points may be utilized to reference similar data points stored in the database in order to determine an SoC value. The SoC value may be utilized to modify or alter the SoC calculations by the BMS for an EV in operation.

Abstract: In an aspect a system for energy tracking in an electric aircraft. A system includes at least a battery pack. At least a battery pack includes a plurality of battery modules. A system includes a sensing device. A sensing device is configured to detect a battery parameter of at least a battery module of a plurality of battery modules. A sensing device is configured to generate battery data as a function of a detected battery parameter of at least a battery module. A system includes a computing device. A computing device is in electronic communication with a sensing device. A computing device is configured to receive battery data from a sensing device. A computing device is configured to determine an energy amount of a plurality of battery packs as a function of battery data.

Abstract: Embodiments disclosed herein comprise a sensor. In an embodiment, the sensor comprises a substrate having a first surface and a second surface opposite from the first surface. In an embodiment, the sensor further comprises a first electrode over the first surface of the substrate, and a second electrode over the first surface of the substrate and adjacent to the first electrode. In an embodiment, the sensor further comprises a barrier layer over the first electrode and the second electrode.

Abstract: A ground fault detection device connected to a high-voltage battery and a positive electrode side Y capacitor includes a detection capacitor operating as a flying capacitor and a discharge circuit including at least a fifth switch. A one end of the discharge circuit is connected to a first circuit that connects a positive electrode side of the high-voltage battery and a one end of the detection capacitor. An another end of the discharge circuit is connected to a second circuit that connects an another end of the detection capacitor and a ground.

Abstract: A head coil assembly includes a housing with a lower portion, an upper portion, a left portion, and a right portion, wherein each portion includes two or more radio-frequency (RF) coils, wherein the portions are sized and shaped to adjustably conform to a curvature of the subject's head for magnetic resonance (MR) imaging of the subject's head placed inside the housing, wherein the portions are operable to transition from an open position where the portions are sufficiently apart from each other to a closed position where the portions are adjusted to tighten a wrap around the subject's head along the curvature, and wherein the two or more RF coils in each portion are disposed in such manner that when the portions are operated to transition from the open position to the closed position, the RF coils of each portion remain decoupled to each other even along edges of each portion.

Abstract: A method for testing a capacity of a drive rescue battery includes opening a first switching device and second switching device to disconnect a LCL filter from AC mains and form a test load for testing the capacity of the drive rescue battery while disconnecting one of the LCL filter capacitors associated with a third phase from the test load, the test load including a series connection from one of the downstream LCL filter inductors and the LCL filter capacitors associated with the first phase to one of the LCL filter capacitors and the downstream LCL filter inductors associated with the second phase; and determining at least one of a voltage or a current of the drive rescue battery resulting from the test load.

Abstract: A system and method for monitoring characteristics of an electric energy device includes generating an external short from the electric energy device. The external short occurs at a known distance from a sensor and has at least one known external resistance. The received signal representing change in electromagnetic field due to the applied external short may be analyzed to determine a signal parameter that is then analyzed in comparison to a lookup table, based on the known conditions including distance, temperature and the external resistance. The output of this analyses in comparison with expected values may be utilized to identify a characteristic of the energy device.

Abstract: A battery management system (BMS) for early detection of a battery cell internal short-circuit. The BMS includes a memory, one or more processing units, and a machine-readable medium on the memory. The machine-readable medium stores instructions that, when executed by the one or more processing units, cause the BMS to perform numerous operations of a method for early detection of the battery cell internal short-circuit.

Abstract: Provided are a battery management system, a battery management method, a battery pack and an electric vehicle. The battery management system includes a sensing unit to generate battery information indicating a current, a voltage and a temperature of a battery, and a control unit. The control unit determines a temporary estimate for a SOC in a current cycle using a time update process of an extended Kalman filter based on a previous estimate indicating a SOC in a previous cycle and the battery information. The control unit determines open circuit voltage (OCV) information based on the temporary estimate. The control unit determines a definitive estimate indicating the SOC in the current cycle using a measurement update process of the extended Kalman filter based on the temporary estimate, the OCV information and the battery information.

Abstract: A self-standing sandwich structure includes at least one capacitive sensor member and/or at least one heater member for automotive vehicle application. The self-standing sandwich structure includes an upper protective layer that is attached, for manufacturing and storage purposes, to a carrier film member of sufficiently low surface energy for enabling separating the carrier film member and the upper protective layer in a non-destructive manner, a lower protective layer, a bottom adhesive layer that is attached to the lower protective layer, and at least an upper electrically conductive layer arranged between the upper protective layer and the lower protective layer.

Abstract: A battery pack according to an embodiment of the present disclosure may include a plurality of battery cells and a BMS for controlling the battery pack. The BMS may include a state-of-charge (SOC) calculation module for calculating a SOC of each of the plurality of battery cells included in the battery pack and a faulty battery cell detection unit for detecting at least one faulty battery cell on the basis of the calculated SOC of each of the plurality of battery cells.

Abstract: A device for detecting a secondary battery of an uninterruptible power system contains: a main battery module and at least one sub battery module. The main battery module includes a first power storage unit, a first detection unit, a first processing unit, a communication unit, and a first data transmission unit. The first power storage unit includes multiple first battery assemblies connected in series, and a respective first battery assembly has at least one secondary battery. The first detection unit includes multiple first detectors. The first data transmission unit includes a first one-way transmit port and a first two-way transmit port. The sub battery module includes a second power storage unit, a second detection unit, a second processing unit, and a second data transmission unit. The second power storage unit includes multiple second battery assemblies connected in series. The second detection unit includes multiple second detectors.