Abstract: In a battery abnormality detection system, a data acquirer acquires a current flowing through a battery and a temperature of the battery. A determiner determines presence or absence of abnormal heat generation of the battery based on a relation between an amount of the current flowing through the battery in a certain period and a temperature rise of the battery in the certain period. The determiner determines the presence or absence of the abnormal heat generation of the battery based on the current and the temperature of the battery in a charging period in which the temperature of the battery exceeds a set temperature.

Abstract: A battery abnormality detection system includes the following constituents. A battery data acquisition unit acquires voltages of one of a plurality of cells and a plurality of parallel cell blocks in a battery pack and temperatures at a plurality of observation points respectively measured by a plurality of temperature sensors provided in the battery pack. A determination unit determines presence or absence of an abnormality in one of a specific cell and a specific parallel cell block, based on a transition of a voltage of the one of the specific cell and the specific parallel cell block in a predetermined period in the battery pack and on a difference between a temperature change at a first observation point and a temperature change at a second observation point in the predetermined period in the battery pack.

Abstract: Controller determines an output limit value that defines an upper limit of a current or power recommended for suppressing cell deterioration based on a voltage, a current, and a temperature of each cell, and notifies host controller in electric vehicle of the determined output limit value. When electric vehicle climbs a hill, controller calculates a current value or power value to be discharged from power storage unit, the current value or power value being required for electric vehicle to climb the hill at a speed not less than a set minimum speed, while suppressing an amount of deterioration of cells within an allowable range, and when the calculated current value or power value is larger than the output limit value, replaces the output limit value with the calculated current value or power value.

Abstract: A voltage of a battery cell is measured, and a current flowing through the battery cell is measured. An open circuit voltage (OCV) of the battery cell is estimated based on the measured voltage, the measured current, and an equivalent circuit model based on electrochemistry of the battery cell. At least one of a positive electrode and negative electrode of the battery cell is a mixed electrode containing a plurality of materials. The equivalent circuit model is a model including a diffusion resistance component for each of the plurality of materials for use in the positive electrode and the negative electrode.

Abstract: An information processing method executed by a computer includes: acquiring an acceleration request for a mobile body that moves using a battery; calculating an output current in the battery based or the acceleration request; calculating a degradation degree of the battery based on the output current; generating an acceleration control instruction in response to the acceleration request in accordance with the degradation degree of the battery; and outputting the generated acceleration control instruction.

Abstract: A charge control map for chargers specifies the relationship between an upper limit current and charging conditions including at least one of the temperature of the chargers, the state of charge (SOC) of a secondary battery mounted in an electrically driven vehicle to be charged, the voltage of the secondary battery, and time. A charge control map for an electrically driven vehicle specifies the relationship between an upper limit current and charging conditions including at least one of the temperature of the secondary battery, the SOC of the secondary battery, the voltage of the secondary battery, and time. A charger selection unit (118) selects a charger used for charging any electrically driven vehicle of a plurality of electrically driven vehicles from among the plurality of chargers. The charger selection unit (118) selects at least one charger that least limits the charging performance of the electrically driven vehicle to be charged.

Abstract: An acquisition unit of in-vehicle notification device mounted on electric vehicle acquires a discharge current value discharged from secondary battery in electric vehicle to motor for running in electric vehicle. According to the acquired discharge current value, a notification unit notifies the driver of information indicating an impact of a current driving condition by the driver of electric vehicle on degradation of secondary battery.

Abstract: A gas pressure monitoring device of a gas insulated switchgear of the present invention includes at least two cylindrical vessels that configures the gas insulated switchgear, receives an internal pressure, and has flanges, a plurality of bolts that fasten the flanges of the two cylindrical vessels, a bolt with sensor, the bolt being at least one bolt of the plurality of bolts and including at least one sensor on each of an inner diameter side and an outer diameter side of a cylindrical vessel in the axial direction of the one bolt, a pressure gauge that is installed on the cylindrical vessel and reads pressure of an insulating gas when the insulating gas is sealed into the cylindrical vessel, a measurement recording unit that records reading values of the pressure gauge and output values of the sensor, and an evaluation unit that calculates relationship between the pressure of the insulating gas and stress acting on the bolt with sensor when the insulating gas is sealed into the cylindrical vessel, wherein,

Abstract: An information processing device acquires power consumption information indicating information corresponding to a power consumption amount per use unit of an electric apparatus driven by a battery; acquires initial capacity information indicating an initial capacity of the battery; calculates a first end of life of the battery on the basis of the power consumption information and the initial capacity information; acquires a second end of life of the battery set according to characteristics of the battery; and outputs a shorter one of the first end of life and the second end of life as a third end of life of the battery.

Abstract: The power conditioner determines possible total power and working individual power to be in a range that possible individual power of each of the power supply units is not exceeded. The possible total power is determined from the possible individual power, of each of the power supply units, determined based on the battery information detected by each of the unit controllers, collected by a master controller from each of the unit controllers. The working individual power is determined based on a power deviation indicating a difference of charging and discharging power between the power supply units. The power conditioner causes charging and discharging of each of the power supply units within the calculated working individual power.

Abstract: A path finder sets a plurality of nodes in a state of charge (SOC) zone that is between a target SOC, which is set when a secondary battery provided in an electric moving body is charged, and a present SOC, and sets a plurality of nodes in a chargeable time period that is between a charging start time and a charging end time. A cost assigner refers to at least one of storage degradation characteristics, charge cycle degradation characteristics, or a time-of-use electricity fee table to assign a cost of a degradation amount or an electricity fee to each path between nodes. The path finder finds the charging path that minimizes a total cost of the paths between the nodes. A charging plan creator creates a charging plan based on the charging path found.

Abstract: A voltage of a battery cell is measured, and a current flowing through the battery cell is measured. An open circuit voltage (OCV) of the battery cell is estimated based on the measured voltage, the measured current, and an equivalent circuit model based on electrochemistry of the battery cell, and a state of charge (SOC) of the battery cell is estimated based on the estimated OCV, SOC-OCV characteristics on a charge side of the battery cell, and SOC-OCV characteristics on a discharge side of the battery cell. At least one of a positive electrode and negative electrode of the battery cell is a mixed electrode containing a plurality of materials.

Abstract: An information processing method, by a computer, includes: instructing a charger for charging a battery to: repeat a charge control including a set of charging having a first interval and charging suspension having a second interval; and finish the charge control when a charge amount reaches a predetermined amount; and acquiring operational data indicating a voltage and a charge capacity of the battery at an end time of each second interval of the charge control.

Abstract: An information processing device acquires charge/discharge information indicating a charge/discharge amount per unit period of a battery having a plurality of cells; acquires first relationship information indicating a relationship between the charge/discharge amount per the unit period and a deterioration degree of the battery; acquires second relationship information indicating a relationship between an elapsed time or the charge/discharge amount, and a voltage difference generated between the plurality of cells; acquires first cost information indicating a first cost generated by deterioration of the battery and second cost information indicating a second cost required for reducing the voltage difference; and determines, on the basis of the charge/discharge information, the first and second relationship information, and the first cost and second information, work timing at which the work in a charge/discharge plan is performed, the work timing being timing at which a sum of the first and second cost satisf

Abstract: In an arithmetic system, a data acquisition unit acquires operation data at least including a voltage of a battery mounted on an identical product (for example, an electrically-driven vehicle of an identical vehicle type) and a state of charge (SOC) from a plurality of individuals of the product via a network. A detector statistically processes the plurality of pieces of acquired operation data to detect an individual on which a battery different from specifications of the product is mounted.

Abstract: A charge control device includes: a first communication section configured to: receive first data from a plurality of mobile vehicles respectively and transmit second data to the mobile vehicles respectively via first connection parts; and receive a third datum from a charger and transmit a fourth datum to the charger via a second connection part; and a control part that generates the fourth datum from the first data, generates the second data for the mobile vehicles respectively from the third datum received from the charger in response to the fourth datum, and causes the first communication section to transmit the fourth datum and the second data, each of the first data, the second data, the third datum, and the fourth datum complying with a charging standard.

Abstract: Provided is a server that executes: acquiring at least one deterioration characteristic calculation model of a storage battery based on a test; acquiring operation data on the storage battery after the test; acquiring a degree of deterioration of the storage battery in the operation data; inputting the operation data into the at least one deterioration characteristic calculation model to calculate at least one deterioration coefficient; inputting the operation data into a degree-of-deterioration calculation model for calculating a degree of deterioration of the storage battery to calculate a degree of deterioration using the at least one deterioration coefficient calculated; adjusting the at least one deterioration characteristic calculation model to calculate a degree of deterioration close to the degree of deterioration acquired; calculating at least one deterioration characteristic using the at least one deterioration characteristic calculation model adjusted; and outputting the at least one deterioration

Abstract: An occupant protection apparatus includes a driver. The driver includes a drive unit, a support shaft, a movable seat pan supported by the support shaft such that the movable seat pan is inclinable in a front-rear direction, a guide groove, a movement pin that is movable along the guide groove, a link that couples the movable seat pan to the movement pin, and an energy absorber. The guide groove includes a first guide groove portion in which the movement pin moves when the movable seat pan is inclined rearward and a second guide groove portion in which the movement pin moves when the movable seat pan is inclined forward. The energy absorber is configured to absorb at least part of a forward load from an occupant when the movement pin moves in the second guide groove portion.

Abstract: A vehicle seat includes a seat cushion including a cover, a frame and a pad, a plurality of parts of the cover being restrained to the frame and the pad; a cushion airbag device mounted in a front portion in the seat cushion and configured to inflate and deploy an airbag at a time of a frontal collision of a vehicle; and a restraint release part provided in a part of the cover positioned at at least one side in a seat front-rear direction with respect to the cushion airbag device among the plurality of parts of the cover. The restraint release part is configured to release the restraint of the part of the cover with an inflation pressure of the airbag.

Abstract: A power converter includes a power conversion controller configured to determine whether or not an output terminal is misconnected to a system power supply based on a current between a power converter and the output terminal and a voltage between the power converter and the output terminal, and to perform a control to stop power conversion in the power converter when determining that the output terminal is misconnected to the system power supply.