25results about How to "Increase charging time" patented technology

The invention provides a pure electric vehicle charging control method and system, and relates to the technical field of electric vehicle energy storage, and the method comprises the steps: collecting real-time charging data, combining historical data to construct a battery state evaluation model, and calculating battery state information in real time; a multi-objective optimization model is established based on the battery state information, and an optimal charging strategy is solved by adopting an improved particle swarm algorithm; and a multi-dimensional safety monitoring system is established, a corresponding safety plan is executed when abnormal charging is detected, and the plan is fed back to the multi-target optimization model for strategy correction.

The invention provides an electric motorcycle charging control method based on battery electric quantity, which comprises the following steps: when an electric motorcycle is charged, acquiring inclination angle data of a side bracket of the electric motorcycle, if the inclination angle is within a preset range, judging that a motorcycle body is in an inclination state in a charging state, and triggering a monitoring program of a battery pack cooling liquid flowing state; temperature data of the identified single batteries in the non-uniform cooling liquid distribution area are collected in real time through a temperature sensor array, gradient analysis is carried out on the temperature data, the position and severity of a thermal unbalance fault are determined, and data support is provided for subsequent charging strategy adjustment and cooling system optimization; the temperature distribution and the flow track of the cooling liquid at different inclination angles are simulated, and the heat dissipation risk area at the current inclination angle is determined by comparing and analyzing the uniformity of the temperature distribution and the smoothness of the flow.

The invention discloses a display panel and a display device, and the display panel comprises a first region which comprises a plurality of rows of pixel circuits; the second area comprises a first start control line, a first driving circuit and a plurality of clock signal lines, the first start control line is electrically connected with the first driving circuit, and the first driving circuit comprises multiple stages of shift register units; in the shift register unit, a plurality of clock ends are electrically connected with a plurality of clock signal lines respectively, and N shift output ends are electrically connected with adjacent N rows of pixel circuits respectively; in a first working mode, a plurality of clock ends in the shift register unit receive different clock signals, so that N shift output ends output gate driving signals in a time-sharing manner; and in the second working mode, two clock ends in the shift register unit receive the same clock signal, so that the N shift output ends simultaneously output gate driving signals. In the invention, the display panel adopts the second working mode, so that the charging time of each row of pixel circuits can be prolonged, or the refresh rate can be improved.

The invention provides a charging method and electronic equipment, which can be applied to the technical field of electronics, and comprises the following steps: when the electronic equipment is determined to be at a first charging gear of a fast charging stage, obtaining a voltage detection result of a battery by a voltameter, when the charging current reaches the current threshold value corresponding to the first charging gear and the voltage of the battery reaches the voltage threshold value corresponding to the first charging gear, the charging stage corresponding to the first charging gear is ended, the voltage of the battery is measured through the voltameter, and the error of the voltameter for detecting the voltage of the battery is generally 7.5 mV; the error of detecting the voltage of the battery is smaller than that of detecting the voltage of the battery by a fast charging chip, so that the voltage threshold value corresponding to the charging gear can be set to be relatively higher when the voltage of the battery is detected by the voltameter, and the time in a fast charging stage or a charging stage with relatively large charging current can be increased; therefore, the charging time in the charging stage with relatively large charging current is increased, and the charging time in other stages is reduced, so that the overall charging time is saved.

This invention discloses an electronic paper display panel and a display device. The display panel includes: multiple data lines and multiple scan lines; and sub-pixels enclosed by the multiple data lines. The data lines are serpentine, with two data lines between adjacent columns of sub-pixels. Each pair of adjacent rows of sub-pixels is connected to a scan line, and within the same column, each pair of sub-pixels is not completely enclosed by two data lines. The two rows of sub-pixels are respectively connected to left and right data lines. The display panel provided by this invention, by setting the data lines in a serpentine pattern, with at least a portion of adjacent columns of sub-pixels having two data lines between them; each pair of adjacent rows of sub-pixels is connected to a scan line, and within the same column, each pair of sub-pixels is not completely enclosed by two data lines. The two rows of sub-pixels are respectively connected to left and right data lines. This reduces the intersection of signal lines on the bottom bezel of the electronic paper display panel, saves costs, facilitates the realization of a narrow bezel in the electronic paper display panel, and improves the display effect.

The application discloses a display panel and a display device, and relates to the technical field of display panels, and discloses a display panel and a display device, which comprises a first area comprising a plurality of pixel circuits, a second area comprising a first start control line, a first driving circuit and a plurality of clock signal lines, the first start control line being electrically connected to the first driving circuit, and the first driving circuit comprising a plurality of shift register units; in the shift register units, a plurality of clock terminals are respectively electrically connected to the plurality of clock signal lines, and N shift output terminals are respectively electrically connected to N adjacent rows of pixel circuits; in a first working mode, the plurality of clock terminals in the shift register units receive different clock signals, so that the N shift output terminals output gate driving signals in time; and in a second working mode, two clock terminals in the shift register units receive the same clock signal, so that the N shift output terminals output gate driving signals at the same time. In the application, the display panel adopts the second working mode, so that the charging time of each row of pixel circuits can be increased, or the refresh rate can be improved.

The invention provides an all-solid-state battery capacity grading method which comprises the following steps: placing a battery in a capacity grading cabinet, and controlling the internal temperature of the capacity grading cabinet to reach a first preset temperature; performing low-current discharging operation on the battery at the first preset temperature, so that the voltage of the battery is reduced to a first preset voltage; low-current charging operation is carried out on the battery, so that the voltage of the battery is increased to a second preset voltage, and the second preset voltage is larger than the first preset voltage; the internal temperature of the capacity grading cabinet is controlled to be reduced to a second preset temperature, large-current charging operation is carried out on the battery, the voltage of the battery is made to be increased to a third preset voltage, and the third preset voltage is larger than the second preset voltage; controlling the internal temperature of the capacity grading cabinet to rise to a first preset temperature, discharging the battery, and reducing the voltage of the battery to a first preset voltage; and charging the battery to enable the voltage of the battery to meet the preset K value test voltage, and ending the capacity grading operation. By applying the method, the internal polarization degree of the battery in the charge-discharge process during capacity grading can be reduced, and the capacity grading process time is shortened.

The invention discloses a bipolar high repetition frequency high-voltage nanosecond pulse generating circuit and method, wherein each capacitor in the primary side of a pulse power supply main circuit is charged according to a preset charging voltage and charging polarity; a control unit transmits a control signal to a capacitor charging module and the primary side of the pulse power supply main circuit; the control unit sends a specific trigger pulse to trigger the primary side of the pulse power supply main circuit to discharge, thereby forming an initial pulse voltage; the initial pulse voltage acts on a multi-winding saturable pulse transformer to charge a secondary capacitor; the pulse voltage amplitude is increased through voltage conversion and pulse compression on the secondary side of the pulse power supply main circuit, thereby forming a nanosecond pulse voltage; after outputting a pulse voltage, the control unit switches the states of each semiconductor switch on the primary side of the pulse power supply main circuit according to a preset strategy, outputs the next pulse voltage, and the primary capacitor corresponding to the previous output pulse is in a charging state, thereby cyclically outputting bipolar high repetition frequency high-voltage nanosecond pulses.

The present disclosure provides a wireless charging device and a control method thereof. The wireless charging device includes a housing, a wireless charging component, a first heat dissipation component, and a second heat dissipation component. The outer surface of the housing has a wireless charging position, and the wireless charging position is used to place the device to be charged; the wireless charging component is arranged in the housing and corresponds to the wireless charging position, and the wireless charging component is used to wirelessly charge the device to be charged; the first heat dissipation component is arranged in the housing and is located on one side of the wireless charging component, and the first heat dissipation component is used to dissipate heat for the wireless charging component; the second heat dissipation component is located on one side of the wireless charging position, and the second heat dissipation component is used to generate wind blowing toward the wireless charging position, so as to dissipate heat for the device to be charged located on the wireless charging position. The technical solution disclosed in the present disclosure can improve the charging speed of wireless charging.

The application discloses a display panel driving method and a display device. The display panel driving method comprises the following steps: obtaining a display scene of a video source signal; when the display scene of the video source signal is a target display scene, sequentially and alternately charging first to i-th sub-pixels, and charging the sub-pixels of one color in each frame display period of the video source signal, thereby increasing the charging time of the sub-pixels, and relieving the problem of uneven display panel picture brightness caused by insufficient charging of the sub-pixels.

The application provides an array substrate, a driving method and a display device. The array substrate comprises a driving module, a plurality of rows and columns of sub-pixels, a plurality of columns of data lines and a plurality of rows of scanning lines; one frame time comprises at least two sub-frames; the driving module provides scanning signals to the scanning lines, controls the plurality of rows of scanning lines to be opened in turn in the sub-frames, and controls the sub-pixels corresponding to the same color and electrically connected to the opened scanning lines and the same data line in the sub-frames; in the sub-frames, there are overlapping time periods and non-overlapping time periods between effective time periods of scanning signals provided by at least two adjacent scanning lines in the plurality of rows of scanning lines opened in turn; and data voltages received by the data line in at least part of the overlapping time periods are the same as data voltages received by the data line in at least part of the non-overlapping time periods. The application can improve the charging time of at least part of the sub-pixels, improve the charging rate and the refresh rate, and improve the display quality.

The invention provides an array substrate, a driving method and a display device. The array substrate comprises a driving module, a plurality of scanning lines, a plurality of data lines and a plurality of pixels, two scanning lines are arranged between two adjacent rows of sub-pixels; two columns of sub-pixels are arranged between the two columns of data lines; in the same row of sub-pixels, the plurality of sub-pixels electrically connected with the same data line have at least two colors; in the adjacent rows of sub-pixels, at least two sub-pixels electrically connected with the same data line have the same color; the driving module controls an overlapping time period and a non-overlapping time period to exist between effective time periods of scanning signals provided by at least two scanning lines which are opened in sequence in a display frame; the data voltage received by the data line in at least part of time in the overlapping time period is the same as the data voltage received by the data line in at least part of time in the non-overlapping time period. The charging rate and the refresh rate can be improved, and the display quality is improved.

The photovoltaic charging trunk comprises a trunk body, a trunk cover, a folding photovoltaic panel and an installation groove cover plate, the upper end of the trunk body is open, one side of the trunk cover is hinged to the top end of the side wall of the trunk body, and an installation groove is formed in the upper end face of the trunk cover; one end of the folding photovoltaic panel is fixed on the inner side wall of the mounting groove, and the folding photovoltaic panel can be folded and stored in the mounting groove; the photovoltaic charging trunk and the electric bicycle with the photovoltaic charging trunk belong to the technical field of electric bicycle charging, charging can be carried out at any time, sunlight charging is safe and energy-saving, the charging time is prolonged, and the limitation that charging is carried out through a fixed socket is broken through.

The application provides a charging power adjustable range calculation method, system, device and medium, comprising: collecting historical charging orders of a user, calculating the maximum extended charging time of the user in each charging scene on a charging pile in a predicted period before and in the predicted period according to the user type and the historical charging orders through a charging capacity prediction model; calculating the acceptable minimum charging power of the user on the charging pile in the predicted period according to the maximum extended charging time of the user in each charging scene on the charging pile in the predicted period, the minimum charging power of the charging pile and the updated charging capacity of the user; and determining the charging power adjustable space of the user according to the rated charging power of the charging pile and the acceptable minimum charging power of the user on the charging pile in the predicted period. The application accurately calculates the charging power adjustable space of the user, reasonably sets the charging pile, and avoids resource waste caused by excessive setting of the charging pile.

The invention discloses a nonvolatile storage system, a charging management method and a capacity expansion type protective shell, and relates to the technical field of memorizers, and the method specifically comprises the steps that a control unit determines whether the electric quantity of a mobile phone end battery is lower than a first electric quantity threshold value, and when the electric quantity of the mobile phone end battery is lower than the first electric quantity threshold value, a first power distribution strategy is operated; the battery of the mobile phone terminal can be quickly charged; when the electric quantity of the mobile phone end battery is charged to be not lower than a second electric quantity threshold value, a second power distribution strategy is operated, and the mobile phone end battery and an additional battery of the nonvolatile storage system are charged at the same time; according to the actual electric quantity of the mobile phone end battery, different power distribution strategies are selected to reasonably distribute the charging power of the charger, so that the mobile phone end battery is switched to the advanced charging of the additional battery by utilizing the redundant power of the mobile phone end battery at low charging power such as trickle charging, and the charging efficiency is improved. Therefore, the dead time of the mobile phone end battery at low charging power such as trickle charging is reduced, and the overall charging time is greatly shortened.

The invention belongs to the technical field of new energy batteries, and particularly relates to a lithium iron phosphate material capable of reducing charging polarization and a preparation method and application thereof. The lithium iron phosphate material is sphere-like lithium iron phosphate particles doped with a Ti element, the doping amount of the Ti element is 2000-6000 ppm, and the D50 of the sphere-like lithium iron phosphate particles is 0.7-0.9 [mu] m. Starting from the structure and composition of the material, the micro-macro structure of the lithium iron phosphate material is optimized and adjusted through dual combination of particle size regulation and metal doping, the compaction density of the material is ensured while the dynamic performance of the material is improved, the polarization degree of the material in the constant-power charging process is reduced, and the gram capacity of the material is improved; and the energy density of the battery is improved. The problem that during constant-power charging, the polarization of the charging tail end is large, and the battery cannot be fully charged, so that the discharging capacity is low is solved.

The invention provides a coil control circuit of an electromagnetic valve and an electromagnetic valve control device, and relates to the technical field of circuit control. The coil control circuit comprises a control unit, a first switch unit, a second switch unit, a signal negation unit and a high-side control switch unit. An input pin of the high-side control switch unit is connected with a preset power supply, an output pin of the high-side control switch unit is connected with a coil of the electromagnetic valve, an output end of the control unit is connected with a control end of the first switch unit, and an output pin of the first switch unit is connected with a control end of the high-side control switch unit to control the first switch unit to be in an on state; the input pin and the output pin of the high-side control switch unit are switched on; the output end of the control unit is further connected with the control end of the second switch unit through the signal negation unit, and the output pin of the second switch unit is connected with the control end of the high-side control switch unit to control the second switch unit to be turned on, so that the input pin and the output pin of the high-side control switch unit are disconnected.

The invention relates to the technical field of electric vehicle charging, and discloses an alternating-current and direct-current integrated charging system and a charging plug. The alternating-current and direct-current integrated charging system comprises a charging pile end and a vehicle end, and the charging pile end comprises an alternating-current and direct-current charging gun module; the vehicle end comprises a vehicle charging seat module, a vehicle distribution box module, a vehicle-mounted charger module and a power battery module, the vehicle distribution box module is used for switching the charging mode of the charging system, and the alternating current and direct current charging gun module is used for providing alternating current or direct current for the vehicle end according to the charging mode of the charging system; a direct-current plug and an alternating-current plug can be integrated into an integrated plug, only one charging port is needed for alternating-current charging and direct-current charging, the layout limitation of an existing alternating-current and direct-current charging port is overcome, the cost of the whole vehicle is reduced, meanwhile, fast and flexible switching between fast charging and slow charging is achieved through the vehicle distribution box module, and the charging efficiency is improved. The fast and slow charging switching complexity is reduced, the charging time is shortened, and the charging efficiency is further improved.

The present application provides a DC boost conversion device, which relates to the field of power electronics technology. The DC boost conversion device may include: a controller and a boost converter, and the boost converter includes: a switch module, a charge and discharge module, a first switch, a boost module and a voltage stabilizing module; the switch module is used to access the input voltage; one end of the charge and discharge module is respectively connected to the switch module and the first end of the first switch, and the other end of the charge and discharge module is connected to the switch module; the second end of the first switch is connected to one end of the boost module, and the third end of the first switch is connected to the controller; the other end of the boost module is connected to the voltage stabilizing module; the controller is connected to the switch module, and the controller is used to output a control signal to the switch module and the first switch to control the opening and closing of the switch module and the first switch, so that the boost converter outputs the boosted output voltage. In this way, the performance of the boost converter in the DC boost conversion device can be improved.

The utility model provides an array substrate and a display device. The array substrate comprises pixels, a plurality of first data lines, a plurality of second data lines, a gate drive circuit and a plurality of scanning lines, wherein the pixels are arranged on a substrate in an array mode. The plurality of first data lines are respectively connected with odd-numbered rows of pixels in each column of pixels; the plurality of second data lines are respectively connected with even-numbered rows of pixels in each column of pixels; the gate driving circuit comprises an output end connected with each row of pixel group, each scanning line is connected with the odd-numbered row of pixels and the even-numbered row of pixels in the corresponding row of pixel group, and the scanning lines are further connected with the output end of the corresponding gate driving circuit. Therefore, the number of pixels on each data line can be reduced, and the voltage drop of the data line is reduced. And the number of output ends of the gate drive circuit can be reduced, so that the charging time of each row of pixels is prolonged under the same resolution.

The invention discloses a compartment thermal management system, method and device, electronic equipment and a storage medium, and relates to the field of compartment thermal management. The internal combustion engine module comprises a generator; an electric loop of the generator and a thermal circulation loop of the internal combustion engine are connected with the temperature control module; the temperature control module controls a power loop of the generator to be connected with the storage battery module or / and the heating module; the temperature control module controls a heat circulation loop of the internal combustion engine to be connected with the heating module. The heating end of the heating module is located in a compartment module temperature control area. The temperature control module comprises a temperature detection end and a timing detection end; the temperature detection ends are located inside and outside the temperature control area; and the timing detection end triggers timing according to the signal state of the temperature detection end. According to the scheme, starting and stopping of the engine are set, the rest time period of people is avoided, meanwhile, the charging time of the storage battery is prolonged, the discharging time of the storage battery is shortened, and the redundancy of maintaining the temperature of the compartment is increased.

The invention discloses a lithium battery charging and heating control method for reverse three wheels, which comprises the following steps: (1) firstly, heating a battery pack, and if a three-stage fault is triggered, carrying out a high-voltage process; (2) if the third-level fault is not triggered, obtaining the temperature of each unit of the battery in the battery pack; (3) if it is detected that the temperature in the battery is smaller than or equal to 17 DEG C and smaller than or equal to 28 DEG C, the charging condition is met, a main negative relay and a charging relay are closed in sequence, and charging request voltage: 3.65 V * string number and current are sent; (3A) when it is detected that the actual charging current is larger than 0.5 A (lasting for 3S), a heating relay is closed, a charging-while-heating stage is entered, and a charging-while-heating request is sent; and (4) if the temperature Tmin in the battery is detected to be greater than or equal to 20 DEG C or Tmax is detected to be greater than or equal to 30 DEG C, entering a charging only stage, directly disconnecting the heating relay, and sending a charging only request. The battery pack preheating strategy based on heating target temperature optimization is adopted, and the performance and the endurance mileage of the battery in the low-temperature environment are improved.

The utility model relates to a soft start circuit, a control circuit and a control chip. The soft start circuit comprises a current mirror circuit, a soft start capacitor and a voltage output circuit. The current mirror circuit is connected with the first current source, and outputs charging current after mirroring the starting current output by the first current source under the action of an externally input starting signal; the soft start capacitor outputs a target voltage after charging for a target time according to the charging current; the voltage output circuit outputs the starting voltage under the action of the target voltage, the starting signal and the external power supply voltage. According to the soft start circuit, the starting current output by the first current source is mirrored through the current mirror circuit, so that the time for charging the soft start capacitor to the target voltage is the target time, and the charging time is prolonged compared with that of directly charging the soft start capacitor to the target voltage; that is to say, the soft start circuit can obtain larger equivalent capacitance, the overall area of the control circuit is saved, and the cost is reduced.

The invention relates to a display panel and a display device, and the display panel comprises a plurality of pixel groups which are arranged along a first direction; wherein each pixel group comprises N sub-pixel columns; a plurality of data signal lines; wherein each sub-pixel column is correspondingly connected with M data signal lines, at least part of sub-pixels of the same sub-pixel column are connected with different data signal lines, N is greater than or equal to 2, and M is greater than or equal to 2; a plurality of multiplexing circuits, wherein each multiplexing circuit respectively comprises M multiplexing units; the multiplexing unit comprises a signal input end, N signal output ends and N shunt control ends, and the shunt control ends are respectively used for receiving shunt control signals; the i-th data signal line corresponding to each sub-pixel column in the same pixel group is connected with each signal output end in the i-th multiplexing unit in the corresponding multiplexing circuit, and i is greater than or equal to 1 and less than or equal to M. The display panel provided by the invention has relatively good display performance.

The invention discloses a charging pile cluster power intelligent distribution method and device, electronic equipment and a medium, and belongs to the technical field of charging. The method comprises the steps that the current battery electric quantity and the maximum battery capacity of a vehicle connected to a charging pile are acquired; calculating the priority weight of the vehicle according to the current electric quantity of the battery and the maximum capacity of the battery; determining the charging power allocated to the vehicle according to the priority weight and the maximum supply power of the charging pile cluster; the higher the priority weight is, the larger the charging power distributed to the vehicle is. By acquiring the current electric quantity and the maximum capacity of the vehicle battery, the charging demand of the vehicle can be accurately known, the priority weight of the vehicle is calculated according to the data, the emergency degrees of different vehicles to charging can be distinguished, the charging power is distributed according to the actual demand of the vehicle, and the charging efficiency is improved. Therefore, the vehicles with high priority weights can obtain more charging power, so that reasonable distribution of the charging power is realized, and the energy utilization rate and the charging efficiency of the whole charging pile cluster are improved.