700 results about "Residual charge" patented technology

The invention discloses an automatic identification and expansion communication method based on an RS485 interface, and relates to the technical field of industrial automation communication. The problems that an existing RS485 interface is complex in configuration, poor in protocol compatibility and high in data transmission delay are solved. According to the scheme, the terminal matched resistance and the bias current are adjusted in real time by dynamically measuring the bus equivalent distributed capacitance value, and signal attenuation caused by the capacitance effect is inhibited; a silicon controlled rectifier trigger type charge discharge mechanism is adopted to force bus residual charge to return to zero quickly, and an idle state is accurately judged in combination with a hysteresis comparator; dynamically compensating signal edge distortion and calibrating a sampling window time sequence based on a pre-emphasis filtering and Kalman filtering algorithm; multi-node stable communication is realized through capacitance value driven conflict detection threshold adaptive adjustment and a Poisson back-off model; according to the invention, the real-time performance, the anti-interference capability and the multi-node expansion reliability of RS485 communication in a complex industrial scene are obviously improved, and the debugging and maintenance cost of the system is reduced at the same time.

The invention discloses a power supply method and a power supply system for on-line monitoring equipment of a lightning arrester, and the method specifically comprises the steps: activating a multi-source energy module according to a preset priority order based on the operation state and environment parameters of the lightning arrester, and supplying power to the on-line monitoring equipment; based on the output characteristics of the multi-source energy module and the residual electric quantity of the on-line monitoring equipment, a constant voltage-constant current hybrid power supply strategy in a conventional mode or an anti-interference power supply strategy in an abnormal mode is executed on the on-line monitoring equipment; and processing the historical leakage current, environmental temperature and humidity and vibration spectrum characteristics of the lightning arrester acquired by the online monitoring equipment through the LSTM prediction model, predicting the energy supply trend of the online monitoring equipment in the preset future time, and dynamically adjusting the working parameters of the online monitoring equipment according to the energy supply trend. According to the invention, stable power supply of the lightning arrester on-line monitoring equipment in a complex environment is realized, and the power supply reliability and the equipment availability are improved.

The invention relates to a charging station management method and system based on an intelligent box, and relates to the field of the vehicle charging technology, and the method comprises the steps: obtaining the overall power of a power grid and the charging demand power of each current charging pile; determining the overall required power according to each charging required power, and determining the available power of the power grid according to the overall power of the power grid and the anti-disturbance coefficient; when the overall demand power is greater than the available power of the power grid, acquiring the battery capacity percentage, the residual charging duration and the vehicle priority coefficient of each vehicle according to each charging pile; calculating according to the battery capacity percentage, the residual charging duration and the vehicle priority coefficient to determine a vehicle basic weight; and calculating according to the available power of the power grid, the basic weight of the vehicle and the charging demand power to determine effective distribution power, and controlling each charging pile to operate at the corresponding effective distribution power. The method and the device have the effect of improving the charging experience when the vehicle is charged by using the charging station.

The invention relates to the technical field of battery management, in particular to a battery replacement cabinet battery real-time monitoring and scheduling method, the health state of a battery is analyzed and evaluated according to a preset algorithm model, and the health state of the battery is evaluated by comparing a comprehensive health score, an internal resistance change rate and a capacity fading rate with corresponding threshold values; and determining a corresponding processing mode based on the evaluation result, including generating and sending abnormal alarm information to the operation and maintenance terminal, or executing an adjustable charging mode according to the state of residual electric quantity of the battery, or executing a protective charging mode according to the deterioration degree of the battery, the health state of the battery is actively evaluated to accurately identify an abnormal battery, for example, the electric quantity may be not low but potential safety hazards exist, in advance, so that targeted charging scheduling can be realized. According to the invention, real-time monitoring and active protection of the health and safety state of the battery are realized, so that the operation efficiency is improved on the premise of ensuring the safety.

The present invention relates to the technical field of battery recycling equipment, and in particular to a discharge device for recycling waste lithium batteries. The hoisting assembly includes winches arranged at intervals on a mounting frame, the ropes of the winches slide through the mounting frame, and the ends of the ropes of the winches are respectively connected to immersion frames, and the immersion frames are loaded with placement frames for placing batteries. Through the coordinated operation of the hoisting assembly, the loading and unloading assembly and the deployment assembly, differentiated discharge treatment of waste lithium batteries is achieved; by using the winch and the multi-stage telescopic cylinder in conjunction with the independent immersion frame and placement frame structure, targeted discharge can be performed on batteries with different remaining power conditions; at the same time, the loading and unloading assembly supports the independent transportation of batteries before and after discharge, providing guarantees for continuous and batch operations, and the deployment assembly can adjust the brine ratio in real time to ensure a consistent electrolyte environment during the discharge process, thereby improving the stability of the discharge effect and the resource recovery rate.

The present invention relates to a new energy ship battery power control method and a system. Each battery pack correspondingly supplies power to one bus, one bidirectional DC-DC converter is arranged between two adjacent buses to form a bus loop, and a load correspondingly draws electrical power from a corresponding bus loop segment; a power supply state of each bus area is checked, and by controlling the bidirectional DC-DC converter between buses, surplus energy of one bus is distributed to another bus having insufficient energy. According to the solution, a low DC-DC capacity configuration is achieved, energy between battery packs can be flexibly scheduled, the remaining electrical power between battery packs can be effectively balanced, the system risk is low and controllable when a bus is short-circuited, the power performance of a ship is not reduced when a single point of failure occurs, and the reliability and safety of the ship are effectively improved.

The invention discloses an energy storage monitoring method and system, electronic equipment and a storage medium, and relates to the technical field of energy storage. The method comprises the following steps: acquiring voltage data and temperature data of a plurality of different types of battery units; generating a voltage response curve of the corresponding battery unit based on each voltage data, and generating a temperature response curve of the corresponding battery unit based on each temperature data; dividing each battery unit into a plurality of battery packs with different charging and discharging characteristics according to each voltage response curve and each temperature response curve, and calculating the residual electric quantity value of each battery unit in each battery pack; in each battery pack, determining an electric quantity difference value between the battery units in combination with the residual electric quantity value of each battery unit, and taking each battery unit of which the electric quantity difference value is greater than an electric quantity threshold value as a target battery pair; and performing concurrent equalization adjustment on the power parameters of each target battery pair until the electric quantity difference value of each target battery pair is smaller than the electric quantity threshold value. By implementing the technical scheme provided by the invention, the overall energy storage efficiency can be improved.

The invention relates to the technical field of batteries, in particular to a battery electric quantity detection method, electronic equipment and a computer readable storage medium, and the method comprises the steps: reading an original voltage value of a battery through an ADC module, and calculating an actual voltage value; judging whether the battery is in a charging state or not according to the actual voltage value, obtaining a corrected voltage value according to a judgment result, obtaining a compensation value according to the corrected voltage value and the power supply state of the SOC main control chip, and further calculating a compensation voltage value; and updating the sliding window by using the compensation voltage value so as to determine the residual electric quantity of the battery according to the updated average voltage value of the sliding window. By combining voltage correction, a compensation mechanism and a sliding window technology, the stability and the accuracy of battery remaining capacity detection can be ensured, and an additional external voltameter or other peripheral circuits are not needed, so that the production cost of a product is remarkably reduced.

The invention discloses a multi-branch parallel battery pack discharge working condition circulation control method, device and equipment and a storage medium, and relates to the technical field of battery management, and the multi-branch parallel battery pack discharge working condition circulation control method comprises the following steps: detecting the state of charge of a multi-branch parallel battery pack, when the percentage of the residual electric quantity in the total capacity is smaller than a preset percentage, detecting the duration of the discharge working condition; when the duration of the discharge working condition is greater than a preset duration, determining a discharge current limit according to a discharge current difference value between branches, a maximum allowable discharge current, the lowest monomer voltage of the branch with the maximum discharge current, the current discharge power and the number of the branches; and when the duration of the discharge working condition is not greater than the preset duration, determining the discharge current limit according to the discharge current difference between the branches, the maximum allowable discharge current and the minimum monomer voltage of the branch with the maximum discharge current. The circulating current influence caused by the end of the discharge working condition can be reduced.

The invention provides a control method and device for an off-grid assembly type photo-hydrogen storage roof building module. The method comprises the steps that whether the real-time generated power of a photovoltaic power generation system meets a first electric quantity storage condition or not is judged; if the real-time power generation power of the photovoltaic power generation system meets the first electric quantity storage condition, judging whether the storable electric quantity of the battery energy storage system meets a second electric quantity storage condition or not; if the storable electric quantity of the battery energy storage system does not meet the second electric quantity storage condition and the storable electric quantity of the hydrogen storage system meets the hydrogen storage condition, inputting redundant electric quantity into the water electrolysis hydrogen production system; if the real-time power generation power of the photovoltaic power generation system does not meet the first electric quantity storage condition, whether the battery energy storage system has residual electric quantity is judged, and a residual electric quantity judgment result is obtained; and if the judgment result of the residual electric quantity is no, starting the hydrogen production system to supply hydrogen to the hydrogen fuel cell heat and power cogeneration system. Occupation of land resources can be reduced, the bottleneck of single energy storage can be broken through, and photo-hydrogen storage synergistic interaction is achieved.

The invention discloses a power grid frequency modulation method based on flywheel energy storage and electrochemical energy storage. The method comprises the following steps: S1, receiving an AGC instruction issued by an AGC dispatching center; s2, preferentially responding to the frequency modulation demand through flywheel energy storage, and adjusting the rotating speed of the flywheel in real time based on the instantaneous power output capability and the residual electric quantity of the flywheel so as to compensate for the high-frequency small-amplitude power deviation; s3, when the flywheel energy storage power or energy is insufficient, battery energy storage supplements response, the charge and discharge depth of the battery is limited according to the charge state of the battery, and the service life is prolonged; and S4, combining the actual ramp rate of the thermal power generating unit, dynamically distributing the output of the energy storage system, and forming a thermal power-hybrid energy storage combined frequency modulation model. The frequency modulation performance index is improved; through instantaneous response of flywheel energy storage and continuous support of a battery, the Kp value is improved from 3.7 to more than 4.2 by combining a frequency modulation system; and the service life of the battery is prolonged, and the replacement cost and the comprehensive cost are reduced by limiting the charge-discharge depth (the SOC range is 20%-90%) of the lithium battery and reducing the high-frequency charge-discharge times of the lithium battery.

The invention provides a robust two-way stacked electrostatic protection circuit, which comprises a two-way stacked electrostatic protection module and a floating charge discharge module, and is characterized in that the two-way stacked electrostatic protection module comprises at least one floating node, and the floating node can accumulate residual charges in the process of normal working of the circuit or electrical characteristic test characterization; the floating charge discharge module is composed of a state control module and a charge discharge module, and the state control module monitors the potential state of a floating node in real time and generates a control signal; the charge discharge module responds to the control signal to conduct and discharge charges accumulated by the floating node, the floating charge discharge module comprises an MOS transistor, the MOS transistor is connected with the first port through the state control module, a source electrode of the MOS transistor is connected with the floating node, and a drain electrode of the MOS transistor is connected with the second port. According to the series high-voltage ESD protection circuit, accumulated charges on the floating node in the series high-voltage ESD protection circuit can be discharged in time.

A battery temperature control method and apparatus, a medium, a device, and a vehicle. The battery temperature control method comprises: acquiring an amount of electricity remaining and a measured temperature of a battery (S101); on the basis of a preset mapping relationship, determining a target temperature range corresponding to the amount of electricity remaining (S102); comparing the measured temperature with the target temperature range, and heating or cooling the battery on the basis of a comparison result, such that the temperature of the battery is kept within the target temperature range (S103). In this way, the target temperature range of the battery can be controlled on the basis of the amount of electricity remaining in the battery, i.e.,, the temperature of the battery can be controlled to fall within different target temperature ranges on the basis of different amounts of electricity remaining in the battery. The target temperature range can be the temperature range that allows the battery to provide the maximum charging current with the current remaining electricity amount.

The invention relates to the technical field of power supply management, and discloses an intelligent management method and system for an uninterruptible power supply, and a storage medium. The method comprises the steps that the actual power of a load end is updated every first duration, and when a power supply end starts to supply power, the actual power is corrected based on the load volatility to obtain required power; starting at least one uninterruptible power supply based on the required power, so that the load utilization rate of the power supply end is within a standard range; defining the started uninterruptible power supply as a first power supply, obtaining the residual electric quantity and the electric quantity attenuation rate of the first power supply at intervals of second duration, and determining a high-risk power supply based on the residual electric quantity and the electric quantity attenuation rate; if the idle uninterruptible power supply exists in the power supply end, the idle uninterruptible power supply is online to replace the high-risk power supply, and otherwise, the load equipment is turned off; after the commercial power is recovered, the uninterruptible power supply in the power supply end is charged based on the charging priority, and sustainable balance between charging safety and the service life of equipment is achieved.

The invention relates to the technical field of charging pile power distribution, in particular to a new energy charging pile power distribution method and system for multiple charging guns, and the method specifically comprises the steps: carrying out the priority weight distribution based on time, and enabling a first-arrival user to preferentially enjoy higher charging power according to a first-arrival first-service principle; an electric vehicle demand characterization factor is calculated according to the electric vehicle residual electric quantity, the electric vehicle with low electric quantity and urgently needing to be charged obtains certain electric energy, and the charging efficiency is improved; determining an expected time allocation weight of each charging pile based on the power change during charging; a suppression factor is introduced based on a total output power change trend prediction result to deal with total output power change in advance; comprehensively analyzing to adjust the distribution power of the charging pile in real time; the waiting time of the user is reduced through dynamic allocation, and efficient utilization of total output power, improvement of user experience and optimization of operation management of the charging station are realized.

The embodiment of the invention provides a power battery heating method and device and a vehicle-mounted terminal. The method comprises the steps that the battery temperature, the residual electric quantity and the driving mode are collected; determining a power battery heating strategy according to the battery temperature and a preset minimum heating temperature; then whether the battery temperature meets a heating condition corresponding to the power battery heating strategy or not is judged, and under the condition that the heating condition is met, a power battery heating mode matched with the battery temperature, the residual electric quantity and the driving mode is determined; heating the power battery according to the power battery heating mode; the corresponding power battery heating modes are adopted for heating the power battery according to different driving modes and environment states, battery heating and normal charging and discharging at the low temperature are met through strategy optimization, it is guaranteed that the battery can be normally heated at the low temperature in different scenes of the vehicle, heat pump and pulse heating at the low temperature is achieved, and energy consumption of the whole vehicle is reduced.

The invention discloses a control method of a PTC heater, a battery device, a vehicle and a storage medium, and the control method comprises the steps: controlling the heater to carry out gear switching to enter a preheating mode to heat the battery when the remaining electric quantity of the battery is lower than a first preset electric quantity and the current temperature of the battery is lower than a first preset temperature; when the battery enters the charging compensation mode, controlling the heater to carry out gear switching to cooperate with the battery to carry out charging compensation; when the remaining electric quantity of the battery is larger than or equal to second preset electric quantity, the heater is controlled to conduct gear switching to enter a maximum power mode to heat the battery, and the second preset electric quantity is larger than the first preset electric quantity. The heater can heat the battery when the battery is at the preset environment temperature such as low temperature, the performance of the battery and / or the heater is improved, the working mode of the heater is dynamically determined, and the working mode of the heater is dynamically switched, so that the heater heats the battery in the target working mode and / or cooperates with the battery for charging compensation.

The invention discloses a power distribution control method suitable for a wind storage combined system, and the method comprises the steps: obtaining a power balance parameter, the charge state of a battery and the charge state of a supercapacitor according to the system operation parameters of the wind storage combined system in the operation process, and obtaining the charge state of the supercapacitor according to the power balance parameter; the method comprises the following steps: determining a power balance relationship of the wind storage combined system, further determining an operation mode of the wind storage combined system according to an operation mode selected by the wind storage combined system, obtaining reference currents of a battery and a supercapacitor in a corresponding operation mode, and determining the power balance of the wind storage combined system according to the reference currents of the battery and the supercapacitor. And performing power distribution control on the wind storage combined system according to a preset power distribution control strategy. The residual electric quantity of the super capacitor is introduced as a new constraint, and the residual electric quantity and the residual electric quantity of the battery system jointly determine power distribution control, so that the hybrid energy storage system is protected while stable operation of the wind power generation system is ensured.

The invention discloses a power control method and device for a power battery, a medium and a program product, and relates to the technical field of battery management, and the method comprises the steps: determining the reference discharge power of the power battery according to the current residual electric quantity and temperature of the power battery; calculating the real-time discharge power of the power battery according to the total voltage and the total current of the power battery; when the residual electric quantity is smaller than or equal to a preset electric quantity threshold value, monitoring the lowest single voltage of the power battery; and according to the real-time discharge power, the minimum monomer voltage and the reference discharge power, obtaining the actual allowable discharge power of the power battery. The precision of discharge power control and the smoothness of the vehicle are improved.

The invention belongs to the technical field of urban public transport management, and particularly relates to an electric public transport scheduling and charging scheduling method considering source-load double-side fluctuation. The objective of the invention is to solve the problems that a public transportation system has source-load double-side fluctuation due to the intermittency of existing source-side photovoltaic power generation and the randomness of load-side public transportation operation energy consumption, so that the charging demand and the power supply capacity in part of time periods are not matched, the operation task cannot be completed in time, and the energy storage utilization efficiency is low. The invention provides an electric bus scheduling and charging scheduling method considering source-load double-side fluctuation. The method comprises the steps of calculating bus battery remaining capacity based on an optimization time period; calculating the remaining capacity of the energy storage battery based on the remaining capacity of the bus battery; based on the bus battery remaining capacity and the energy storage battery remaining capacity, constructing a chance constraint planning model; and solving the opportunity constraint planning model to obtain an optimal feasible solution which comprises an electric bus scheduling and charging scheduling scheme.

The invention discloses a new energy vehicle battery health degree calculation method and device, and the method comprises the steps: merging a plurality of charging data segments of a vehicle into one piece of charging data based on a preset merging rule; the charging data comprises residual electric quantity, current and voltage corresponding to each time point; determining the distinguishing attribute of the charging data according to the type of the battery cell of the vehicle battery; the distinguishing attribute comprises voltage or residual electric quantity; determining a plurality of division intervals corresponding to the distinguishing attributes and the reliability weight of each division interval; constructing a sliding window based on the charging data, and obtaining a potential battery health sequence based on the reliability weight of the division interval corresponding to the distinguishing attribute of the charging data in the sliding window; and obtaining the battery health degree based on the potential battery health sequence. According to the method, the anti-interference capability of battery health degree calculation is effectively improved, the dependence on high-precision residual electric quantity data and complete full charge data is remarkably reduced, and finally, high-precision and high-robustness battery health degree evaluation is realized.

The invention discloses a calibration method and energy storage equipment, and relates to the technical field of energy storage, the calibration method is used for a battery pack, and the calibration method comprises the steps: determining an electric quantity compensation coefficient based on the voltage change trend of the battery pack under the condition that the current voltage of the battery pack is located in a preset electric quantity compensation range; and determining the remaining power based on the power compensation coefficient and the current power. The electric quantity compensation coefficient is determined based on the change trend of the voltage of the battery pack, that is, the electric quantity compensation coefficient is dynamically determined according to the actual voltage change condition of the battery pack instead of depending on the detected current value, that is, the conditions that the battery pack is affected by aging, temperature and internal electrochemical reaction are all considered by calibration, and the calibration accuracy is improved. Therefore, the more accurate remaining capacity of the battery pack is obtained, and the calculation precision of the remaining capacity is improved.

The invention provides a residual electric quantity estimation method and device, electronic equipment and a storage medium, and relates to the technical field of power system energy storage control. The method comprises the following steps: determining a Kalman filter model according to target model parameters corresponding to a target battery; according to the innovation of a Kalman filter in the Kalman filter model, determining a corresponding relation among a target cross-correlation function, a target self-correlation function and an open-circuit voltage-residual electric quantity curve deviation; and determining the residual electric quantity of the target battery according to the corresponding relation. According to the method, accurate SOC estimation can be carried out on the battery under the condition that the open-circuit voltage-residual electric quantity curve has errors, so that the workload of continuously updating the open-circuit voltage-residual electric quantity curve by the battery management system is reduced.

The invention discloses a battery management system residual charging time calculation method, a medium and a program product, and the method comprises the steps: selecting the table look-up current of each SOC interval according to the average temperature of a battery cell, and calculating the charging time needed by each SOC interval based on the table look-up current; determining an SOC interval where the real-time SOC in charging is located, calculating the charging time required by the SOC interval, and adding the charging time required by all SOC intervals behind the SOC interval to obtain an initial value for displaying the residual charging time; according to the minimum value of the actual charging current and the table look-up current, the charging time needed by the SOC interval where the real-time SOC is located is calculated, and the charging time needed by all SOC intervals behind the SOC interval is added to serve as the actual remaining charging time; and calculating the ratio of the actual residual charging time to the display residual charging time as a decreasing calculation coefficient of the display residual charging time, and correcting the display residual charging time by using the decreasing calculation coefficient. The accuracy of the residual charging time can be improved.

The invention relates to the technical field of battery recovery equipment, in particular to a discharging device for waste lithium battery recovery. The hoisting assembly comprises winches arranged on the mounting frame at intervals, ropes of the winches penetrate through the mounting frame in a sliding mode, the ends of the ropes of the winches are connected with immersion frames respectively, and placing frames used for placing batteries are loaded in the immersion frames. Differentiated discharge treatment of the waste lithium batteries is realized through cooperative operation of the hoisting assembly, the loading and unloading assembly and the allocation assembly; a winch and a multi-stage telescopic cylinder are matched with an independent immersion frame and placement frame structure, so that batteries with different residual electric quantities can be discharged in a targeted manner; meanwhile, the loading and unloading assembly supports independent conveying of the battery before and after discharging, guarantee is provided for continuous and batch operation, the blending assembly can adjust the proportion of salt water in real time, it is ensured that the battery is in a consistent electrolyte environment in the discharging process, and therefore the stability of the discharging effect and the resource recycling rate are improved.

The invention relates to the technical field of medical health equipment, in particular to a temperature measurement method and device based on a rechargeable thermometer, a medium and equipment. The method comprises the following steps: determining a body temperature acquisition time interval; according to the acquisition time interval, acquiring body temperature data of the target user at each preset acquisition time point in the target time window to obtain a body temperature sequence of the target user; according to the body temperature sequence of the target user, the residual electric quantity value of the super-capacitor charging thermometer and a power consumption prediction model, obtaining predicted average power consumption corresponding to the key time window and the predicted highest body temperature of the target user; obtaining an updated acquisition time interval according to the predicted average power consumption corresponding to the key time window, the predicted highest body temperature of the target user and a preset dynamic control algorithm; and skipping to the step of collecting the body temperature sequence of the target user. The electric quantity of the super-capacitor charging thermometer is reasonably used, and the problem that power consumption is too fast due to long-time high-frequency measurement is solved.

The invention relates to the technical field of pulse load energy optimization control, in particular to a pulse type ultra-low power consumption energy management system based on a super capacitor, which comprises a pulse spectrum analysis unit, a capacitor bank dynamic tuning unit and a charge state compensation unit, a pulse spectrum analysis unit extracts a load pulse dominant frequency component through a window function weighting algorithm to generate a target frequency value, and a capacitor bank dynamic tuning unit inquires a mapping table according to the target frequency to adjust series-parallel connection combination of the super capacitors and injects a reverse reactance component to offset a resonant impedance difference value. And the charge state compensation unit predicts the residual charge quantity by using a Kalman filter, and triggers a charge redistribution strategy in a non-pulse period, thereby solving the problems of insufficient dynamic impedance matching and low charge balance efficiency in the traditional technology, realizing high-efficiency and low-consumption management of the energy of the super capacitor, improving the energy transmission efficiency, and reducing the energy consumption. And the endurance time of the equipment is prolonged.

The invention provides a battery power prediction method and device, a storage medium and an electronic device. The method comprises the steps that the real-time temperature and the real-time remaining electric quantity of a vehicle battery are acquired; determining the maximum allowable current integral of the battery in the polarization state according to the real-time temperature and the real-time residual electric quantity; acquiring a safety integral of the battery in the polarization state to calculate a real-time integral difference between the safety integral and the maximum allowable current integral in real time; acquiring a current integral of the battery in a charging state or a discharging state; when it is judged that the difference value between the current integration and the safety integration is smaller than the real-time integration difference value, the maximum permissible current corresponding to the maximum permissible current integration serves as target current, the maximum power of the battery is calculated according to the target current, and the vehicle is driven to operate within the range of the maximum power; otherwise, taking the preset minimum current as the target current; the problem that battery power prediction is inaccurate due to the fact that the polarization state of the battery is not considered in the prior art is solved.

The invention discloses a battery charging method and device, a vehicle and a storage medium, and relates to the technical field of vehicle batteries, and the method comprises the steps: obtaining the battery health state, the remaining capacity and the current battery temperature of a vehicle battery under the condition that the vehicle battery is detected to need to be charged; a charging current mapping relation corresponding to the state of health of the battery is determined, the charging current mapping relation represents a mapping relation between a preset temperature interval and a preset calibration permissible current under the preset residual electric quantity, and the preset calibration permissible current represents a mapping relation between the preset temperature interval and the preset calibration permissible current under the preset residual electric quantity; the allowable current of the preset actual temperature interval corresponding to the preset temperature interval; and searching a target calibration permissible current corresponding to the current battery temperature and the residual electric quantity in the charging current mapping relation, and charging the vehicle battery according to the target calibration permissible current. The problem that the charging reliability of the vehicle battery is poor due to the fact that the matching degree of the actual temperature of the battery and the charging current is low is solved.

A method including using a plurality of clamp electrodes of a substrate support to electrostatically secure a substrate during a process. The method further includes actively discharging a residual charge from the substrate after completion of the process based on at least one of contacting a backside of the substrate with a conductive lift pin or exposing the substrate to ultraviolet light. The method further includes raising a plurality of lift pins disposed in the substrate support to a first height to lift the substrate off of the substrate support after the discharging of the residual charge.