A method of determining state of health (SoH) of a battery is disclosed which includes receiving a predetermined open circuit voltage (V.sub.OC) vs. a state of charge (SoC) characteristics for a pristine battery, establishing a single battery model including physical diffusion characteristics and electrical characteristics based on lumped parameters thereby modeling diffusion resistance and capacitance of particles in the electrodes of the battery as well as electrical characteristics based on electrical resistance and capacitance from one electrode assembly to another, thereby generating equations describing voltage at the associated double-layers, solving the double-layer equations, thereby generating solutions for the double-layer electrical characteristics, and establishing a relationship between the solved double-layer characteristics and the SoC, thereby determining a SoH of the battery based on said relationship.

A method of determining state of health (SoH) of a battery is disclosed which includes receiving a predetermined open circuit voltage (V.sub.OC) vs. a state of charge (SoC) characteristics for a pristine battery, establishing a single battery model including physical diffusion characteristics and electrical characteristics based on lumped parameters thereby modeling diffusion resistance and capacitance of particles in the electrodes of the battery as well as electrical characteristics based on electrical resistance and capacitance from one electrode assembly to another, thereby generating equations describing voltage at the associated double-layers, solving the double-layer equations, thereby generating solutions for the double-layer electrical characteristics, and establishing a relationship between the solved double-layer characteristics and the SoC, thereby determining a SoH of the battery based on said relationship.

A signal transmission device and a battery monitoring device are provided. The signal transmission device is connected to an operation device including an operation circuit for performing an operation based on a first voltage, a measurement circuit for obtaining measurement data based on the first voltage, and a process control circuit for operating based on a lower voltage and control an operation of the operation circuit based on the measurement data, and transmits and receives signals between the process control circuit and the measurement circuit. The signal transmission device includes a power reception circuit for supplying power from the power transmission circuit to the measurement circuit to acquire measurement data, and a power transmission circuit for transmitting the power from a process control circuit to the power reception circuit to receive the measurement data from the power reception circuit and supply the same to the process control circuit.

The present disclosure relates to an electrified vehicle and a method for providing a distance to empty thereof that provide the distance to empty with a minimum error with an actual mileage. The electrified vehicle includes a temperature sensor for measuring an ambient temperature of the vehicle, a BMS for monitoring a SOC of a battery mounted on the vehicle, and a controller that calculates a DTE based on the ambient temperature and the SOC of the battery, adjusts a DTE reduction rate based on an actual discharging amount of the battery while traveling, and updates the DTE based on the adjusted DTE reduction rate.

The present disclosure relates to an electrified vehicle and a method for providing a distance to empty thereof that provide the distance to empty with a minimum error with an actual mileage. The electrified vehicle includes a temperature sensor for measuring an ambient temperature of the vehicle, a BMS for monitoring a SOC of a battery mounted on the vehicle, and a controller that calculates a DTE based on the ambient temperature and the SOC of the battery, adjusts a DTE reduction rate based on an actual discharging amount of the battery while traveling, and updates the DTE based on the adjusted DTE reduction rate.

A method for determining a probe signal for acoustically interrogating an electrochemical system, the method including transmitting a first signal, called the calibration signal, including a wave train of multiple frequencies, the spectral density associated with each frequency being identical; receiving the response of the electrochemical system to the calibration signal; determining, on the basis of the received response and for each frequency of the calibration signal, a signal attenuation factor; determining, for each attenuation factor, a correction factor according to the attenuation factor so as to associate a correction factor with each frequency of the calibration signal; and determining the probe signal, the probe signal being obtained by multiplying the spectral density associated with each frequency of the calibration signal by the correction factor corresponding to the frequency in question.

A method for determining a probe signal for acoustically interrogating an electrochemical system, the method including transmitting a first signal, called the calibration signal, including a wave train of multiple frequencies, the spectral density associated with each frequency being identical; receiving the response of the electrochemical system to the calibration signal; determining, on the basis of the received response and for each frequency of the calibration signal, a signal attenuation factor; determining, for each attenuation factor, a correction factor according to the attenuation factor so as to associate a correction factor with each frequency of the calibration signal; and determining the probe signal, the probe signal being obtained by multiplying the spectral density associated with each frequency of the calibration signal by the correction factor corresponding to the frequency in question.

A method determines a probe signal for acoustically characterising an electrochemical system, the probe signal being determined by an identification signal transmitted in a reference electrochemical system to induce a response from the reference electrochemical system.

A method determines a probe signal for acoustically characterising an electrochemical system, the probe signal being determined by an identification signal transmitted in a reference electrochemical system to induce a response from the reference electrochemical system.

A remaining capacity estimation apparatus includes a storage processing unit and a calculation unit. The storage processing unit acquires a model from a model generation apparatus and stores the model in a model storage unit. When data for updating the model are acquired from the model generation apparatus, the storage processing unit updates the model stored in the model storage unit. The calculation unit calculates a remaining capacity of a storage battery managed by the remaining capacity estimation apparatus by using the model stored in the model storage unit. At this time, data (measurement data for calculation) input to the model include a current, a voltage, and a temperature of the storage battery. When the input data when generating the model are only a current, a voltage, and a temperature, the measurement data for calculation are only a current, a voltage, and a temperature.