This application provides a sampling component, including a body portion and a lap portion. The body portion is configured to transmit a sample signal. The lap portion laps the body portion at one end and laps a point for sampling at the other end, to acquire the sample signal; and the lap portion is provided with a fusing structure configured to implement fusing protection on the body portion.

In an example, a battery management system may include a host microcontroller, which may be operated in accordance with a first clock signal; and a first analog front end (AFE) circuit. The first AFE circuit may be operated in accordance with a second clock signal that may be unsynchronized with the first clock signal. The first AFE circuit may also include first digital circuitry to (1) accumulate a first value corresponding to a number of ADC sample cycles of the first ADC, and to (2) accumulate a second value corresponding to the digital output representative of the first battery current for the ADC sample cycles accumulated in the first value. The first AFE circuit may transfer a representation of the first value and a representation of the second value to the host microcontroller in response to a request from the host microcontroller.

A method of field mapping a cell under load is provided. The method comprises the steps of: providing a cell; providing a Hall effect sensor comprising a graphene conductor for measuring a magnetic field; positioning the Hall effect sensor at a first position adjacent a face of the cell; applying a load to the cell; and measuring an output of the Hall effect sensor.

A high-frequency electromagnetic induction control circuit includes a charging control circuit, a battery control and protection circuit, a battery, a main control MCU, a display control circuit, a keyboard control circuit, a drive circuit, a high-frequency heating circuit, and an induction heating circuit. The charging control circuit supplies a charging voltage and a charging current for the battery. The battery control and protection circuit is configured to detect whether the charging voltage and the charging current are qualified. The battery supplies power for the main control MCU. The main control MCU is configured to detect an input voltage of the battery, and the display control circuit sends out a signal whether the battery is in an under-voltage state. The keyboard control circuit is configured to control the main control MCU to operate. The output voltage of the main control MCU is boosted by the drive circuit.

A high-frequency electromagnetic induction control circuit includes a charging control circuit, a battery control and protection circuit, a battery, a main control MCU, a display control circuit, a keyboard control circuit, a drive circuit, a high-frequency heating circuit, and an induction heating circuit. The charging control circuit supplies a charging voltage and a charging current for the battery. The battery control and protection circuit is configured to detect whether the charging voltage and the charging current are qualified. The battery supplies power for the main control MCU. The main control MCU is configured to detect an input voltage of the battery, and the display control circuit sends out a signal whether the battery is in an under-voltage state. The keyboard control circuit is configured to control the main control MCU to operate. The output voltage of the main control MCU is boosted by the drive circuit.

The present invention relates to a common mode noise simulator, and more particularly, to a common mode noise simulator which removes a high-frequency component by controlling impedance of an inductor, a capacitor, and a resistor and evaluates insulation performance of a battery by measuring leakage current of the battery depending on amplitude-modulated common mode noise.

A battery emulation apparatus for supplying a device-under-test (DUT) with electrical power, comprising output terminals for connecting the DUT and an output voltage module providing a variable DC output voltage. A user interface receives a user input comprising the setting of battery parameter(s) and measurement criteria. A data storage stores data representing battery models. A processor selects a battery model based on the parameter(s) and controls the output voltage module to emulate characteristics of the selected battery model(s) according the data, while supplying the DUT with the output voltage. The processor monitors a response of the DUT and/or the output voltage module to the emulated characteristics of the selected battery model(s), wherein the response comprises a physical measurement value. The processor evaluates said physical measurement value based on the set measurement criteria in order to assess the suitability of the selected model(s).

A battery emulation apparatus for supplying a device-under-test (DUT) with electrical power, comprising output terminals for connecting the DUT and an output voltage module providing a variable DC output voltage. A user interface receives a user input comprising the setting of battery parameter(s) and measurement criteria. A data storage stores data representing battery models. A processor selects a battery model based on the parameter(s) and controls the output voltage module to emulate characteristics of the selected battery model(s) according the data, while supplying the DUT with the output voltage. The processor monitors a response of the DUT and/or the output voltage module to the emulated characteristics of the selected battery model(s), wherein the response comprises a physical measurement value. The processor evaluates said physical measurement value based on the set measurement criteria in order to assess the suitability of the selected model(s).

A method for estimating a capacity of an electrical energy storage device with higher accuracy than what is provided in the prior art. The uncertainties in measured electrical current or voltage used in the estimation of the capacity of the electrical energy storage device are at least partly compensated for by using a bias compensated capacity estimator instead of the often-used prior art capacity estimator. The accuracy of the voltage and/or electric current sensor becomes of less importance which leads to that less complicated and less costly sensors may be used and to improve accuracy of the estimated energy storage capacity. The above advantages are obtained by providing a bias compensated capacity estimator that includes at least one bias term which is related to a deviation of an expected value of an original capacity estimator from a true capacity value.

A monitoring device for an energy storage device mounted on a vehicle includes: a memory; and a processor, wherein the memory is configured to store at least one of data on an estimated value of a parking-time discharge current, which the energy storage device discharges during parking, and data for calculating the estimated value of the parking-time discharge current. The processor is configured to perform first SOC estimation processing in which an SOC of the energy storage device is estimated by integrating estimated values of the parking-time discharge current based on the data stored in the memory when the vehicle is in a parking state.