Abstract: This application discloses a method for correcting a SOH, an apparatus, a battery management system and a storage medium, where the method includes: obtaining a relationship curve between a ratio of an accumulated charge/discharge capacity variation and a corresponding voltage-parameter variation of a battery cell and a voltage parameter itself; determining a valid peak point on the relationship curve; determining a SOH calibration value corresponding to voltage parameter datum at the valid peak point; correcting a current SOH according to the SOH calibration value. The estimation accuracy of the SOH can be improved according to this application.

Abstract: Embodiments of the present invention relate to the field of circuit technology, and disclose a method for correcting a SOC of a battery pack, a battery management system, and a vehicle. The method for correcting an SOC of a battery includes: determining, when a charging process of the battery pack starts, whether an initial SOC value of the battery pack is less than or equal to a preset electricity quantity threshold; when the initial SOC value of the battery pack is less than or equal to the preset electricity quantity threshold, recording state information of the battery pack during the charging process, and generating a differential capacity curve of the battery pack according to the state information; correcting a current SOC value of the battery pack according to the differential capacity curve and a voltage-SOC reference curve of a non-decay zone of the battery pack.

Abstract: The present application discloses a method, apparatus, device and medium for equalization control of battery packs. The method may include: acquiring a voltage of each of a plurality of cells of the battery pack; on the condition that one or more voltages of the voltages of the plurality of cells are within a preset voltage interval, selecting a target State of Charge (SOC)-Open Circuit Voltage (OCV) curve from a charging SOC-OCV curve and a discharging SOC-OCV curve stored for the battery pack based on the voltages within the preset voltage interval; acquiring a target SOC of each cell based on the target SOC-OCV curve and the voltage of each cell; calculating, for each cell, a SOC difference between the target SOC of the cell and a reference SOC; calculating an equalizing time for each cell based on the SOC difference of each cell.

Abstract: A method and apparatus for correcting a state of charge (SOC) is provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition, wherein the state data includes: current and voltage data, the preset standing condition is that the current in the state data is less than a preset current threshold, wherein a length of the voltage data in the state data is greater than a preset length; calculating an estimated steady-state Open Circuit Voltage (OCV) value according to the state data, under a condition that a change value of the voltage data in the state data is greater than a preset change threshold; determining a SOC correction value corresponding to the estimated steady-state OCV value; and correcting a current SOC by using the SOC correction value corresponding to the estimated steady-state OCV value.

Abstract: The present disclosure provides a method, a device, a system, and a storage medium for SOC correction for a battery. The method includes determining a current OCV measurement value of the battery, and determining whether the current OCV measurement value is within a hysteresis voltage interval; determining, when the current OCV measurement value is within the hysteresis voltage interval, a charging SOC value corresponding to the current OCV measurement value in the charging state and a discharging SOC value corresponding to the current OCV measurement value in the discharging state; and determining, based on a SOC confidence interval determined from the charging SOC value and the discharging SOC value, a SOC correction target value to correct a current SOC value of the battery. The embodiments of the present disclosure may implement SOC correction for the battery having a hysteresis characteristic to improve estimation accuracy of the battery SOC.

Abstract: A method and apparatus for correcting a state of charge (SOC) is provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition; determining, when a length of voltage data in the state data is greater than a first preset length and less than a second preset length, and a change value of the voltage data in the state data is greater than a preset change threshold, a first set of pending parameters of a predetermined near-steady-state battery model according to the state data; predicting, according to the first set of pending parameters, a second set of pending parameters of the predetermined near-steady-state battery model; calculating an estimated steady-state OCV value according to the second set of pending parameters; and determining a SOC correction value corresponding to the estimated steady-state OCV value to correct current SOC.

Abstract: A method and apparatus for correcting a state of charge (SOC) is provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition; determining, when a length of voltage data in the state data is greater than a first preset length and less than a second preset length, and a change value of the voltage data in the state data is greater than a preset change threshold, a first set of pending parameters of a predetermined near-steady-state battery model according to the state data; predicting, according to the first set of pending parameters, a second set of pending parameters of the predetermined near-steady-state battery model; calculating an estimated steady-state OCV value according to the second set of pending parameters; and determining a SOC correction value corresponding to the estimated steady-state OCV value to correct current SOC.

Abstract: A method and apparatus for correcting a state of charge (SOC), a battery management system and a storage medium are provided. The method includes: acquiring state data of a battery cell in a case where the battery cell meets a preset standing condition; determining, according to the state data of the battery cell, a near-steady-state battery model for characterizing a change in an open circuit voltage (OCV) over time in a near-steady-state and a steady-state time period threshold for characterizing whether a standing time period is sufficient; processing the steady-state time period threshold by using the near-steady-state battery model to obtain an estimated steady-state OCV value; determining a SOC corresponding to the estimated steady-state OCV value by using a preset correspondence between steady-state OCVs and SOCs; and correcting a current SOC by using the SOC corresponding to the estimated steady-state OCV value.

Abstract: A method and device for determining an available capacity of a battery, a battery management system, and a storage medium, relating to the field of battery technologies. The method includes: obtaining the at least one DOD interval corresponding to the SOC interval of the operation of the battery, and the number of cycles and the cycle temperature corresponding to the at least one DOD interval; obtaining a recoverable amount of capacity fade of the battery according to the at least one DOD interval, the number of cycles and the cycle temperature, and determining an actual available capacity of the battery.

Abstract: A method, a device and a system for recovering recoverable faded capacity of a battery. The method includes determining the recoverable faded capacity of the battery, determining a corresponding lower limit of a battery parameter according to the recoverable faded capacity of the battery, and instructing a discharging device to discharge the battery to the corresponding lower limit of the battery parameter.

Abstract: An antenna comprising a metal frame and at least one resonating structure. The metal frame includes a first radiating element and a second radiating element. The first radiating element includes a radiation arm coupled to a feedpoint. The second radiating element includes a suspended radiation arm. Each resonating structure includes a suspended radiation arm and a resonating component, and the suspended radiation arm is coupled to a ground point by using the resonating component.

Abstract: The present disclosure discloses an electronic device having a first slot disposed along a side surface of the electronic device; and a first metal portion disposed on the side surface corresponding to the first slot being used as a radiator of a first antenna of the electronic device.

Abstract: The present invention discloses a method for trusted booting of PLC based on a measurement mechanism, comprising the following steps: a step of initializing self firmware verification; a step of reading and computing firmware information about a PLC; a step of checking and storing one by one; and a step of verifying at the operation start stage. In the method of the present invention, a chip with a trusted function is used as a core of hardware computation. The PLC extends a Flash bus for loading by hardware of the method of the present invention. The hardware of the method of the present invention recognizes necessary boot information, verifies the integrity of the boot loader necessary for the PLC system through the integrity check method and ensures that the booted PLC system is in a trusted state. On the basis of ensuring validity and feasibility for the safety of a terminal device, the present invention can build a safe and trusted industrial control system operating environment.