1398 results about "Residual charge" patented technology

The invention provides a method and system for estimating future average power consumption of an electric automobile. Historical average power consumption is calculated and is used for estimating the future average power consumption, so that timely and accurate future average power consumption information is provided for a driver. The invention further provides a method and system for estimating the remaining driving range of the electric automobile. The remaining driving range of the electric automobile is acquired according to acquired remaining capacity and the electric automobile future average power consumption which is obtained through the method and system for estimating the future average power consumption of the electric automobile. Accordingly, the timely and accurate information of the future average power consumption and the remaining driving range can be given to the driver, and the driver can plan routes and choose the charging time conveniently. The acquired remaining driving range of the electric automobile is subjected to saturation processing and one-order inertia filtering processing, so that the circumstance of high-low mutation does not occur to the finally-obtained value of the remaining driving range of the electric automobile, and the remaining driving range under the current situation is truly reflected.

An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.

The accuracy of neural response recordings in neural stimulators, e.g., cochlear implants, is often degraded by a recording artifact. An idealized electrical-equivalent model of a neural stimulator is created to study, measure and compensate for artifact evoked compound action potential (eCAP). Using this model, the artifact is shown to occur even when the electrical components that make-up the neural stimulator are ideal. The model contains parasitic capacitances between the electrode wires. The model demonstrates that these small parasitic capacitances provide a current path during stimulation which can deposit charge on the electrode-tissue interfaces of the recording electrodes. The dissipation of this residual charge and the charge stored across the stimulating electrode is seen as the recording artifact. The proposed solution for eliminating the artifact problem is realized by utilizing a capacitive electrode material, e.g., TiO2, Ta2O5, or other dielectric coatings or films, instead of Faradaic electrode material, e.g., Platinum (Pt), Pt—Ir alloy or similar alloys, on the neural stimulator electrode lead.

A manufacturing method for manufacturing a solar panel including a solar cell and an outer housing and an inspection method for inspecting a solar panel generating system, include a step of performing one of a withstand voltage test and an insulation resistance test between a live electrical section electrically connected to the solar cell and a conductor section of the outer housing, and thereafter a step of applying a voltage between the live electrical section and the conductor section. In this way, a residual charge left subsequent to the withstand voltage test or the insulation resistance test is reliably removed within a short period of time.

A manufacturing method for manufacturing a solar panel including a solar cell and an outer housing and an inspection method for inspecting a solar panel generating system, include a step of performing one of a withstand voltage test and an insulation resistance test between a live electrical section electrically connected to the solar cell and a conductor section of the outer housing, and thereafter a step of applying a voltage between the live electrical section and the conductor section. In this way, a residual charge left subsequent to the withstand voltage test or the insulation resistance test is reliably removed within a short period of time.

The invention provides an LCD (Liquid Crystal Display) panel drive circuit and method as well as a display unit. The LCD panel drive circuit comprises a control unit and a charge release module. The LCD panel drive method comprises the steps that a control signal is generated by the control unit when the LCD panel is shut down and output to the charge release module; and the charge release module leads residual charge on a pixel electrode and a public electrode to a ground terminal according to the control signal. According to the LCD panel drive circuit and method as well as the display unit provided by the invention, charge on the pixel electrode and the public electrode is led to the ground terminal when the LCD panel is shut down, so that no residual charge is left in the whole panel, the occurrence of abnormal pictures in shutdown is eliminated, the polarized probability of liquid crystals is reduced simultaneously, and the service life of the LCD panel is prolonged.

The invention discloses a method and a device for full balance control of a power battery of an electric automobile. In the method, an analog-digital conversion module of a microcontroller is used for acquiring single body voltage parameters of the power battery and sequencing the single body voltage parameters of the power battery; the microcontroller is connected with a battery management system to acquire dump energy information and battery balancing threshold of the current battery management system; and the method for the full balance control of the power battery of the electric automobile is implemented by the microcontroller according to the actual condition of the dump energy, or selecting an active balancing mode of starting an active balance control circuit and using an on-vehicle battery to charge the lowest battery single body, or selecting a passive balancing mode of starting a passive balance control circuit and using a balancing resistor to discharge the highest batterysingle body, or selecting a mixed balancing mode of using the two modes at the same time. By using the method and the device, a reasonable balancing strategy is established according to the dump energy of the battery, so that the problem of inconsistency of charge and discharge of the power battery is effectively solved and unnecessary electric energy consumption in balancing is effectively reduced.

In a vehicle having a battery and a generator, when a residual charge amount of the battery is reduced to a first predetermined amount, a power-generation command is output to a generator, and the battery is charged by the generator driven by an engine. When the residual charge amount is reduced to a second predetermined amount lower than the first predetermined amount, plural air-conditioning electrical devices are stopped. Thereafter, when the residual charge amount of the battery is increased to be larger than the second predetermined amount, the electrical devices are started at different start times.

A low power charge pump is disclosed. A pump driving node of a first pump stage is selectively coupled to a pump driving node of the subsequent pump stage. Subsequent to a transfer of charge from a first pump stage to a subsequent stage, the first and subsequent pump driving nodes are coupled. Residual charge on a first stage pump driving node is thereby transferred to a subsequent pump driving node. Subsequent to the transfer of charge from the first pump driving node to the second pump driving node, the nodes are uncoupled. By selectively coupling a first pump stage to a pump driving node of the subsequent pump stage, the first pump driving node may pre-charge the subsequent pump driving node, thereby reducing the energy that must be provided by clock driving circuitry to produce a positive-going transition of a driving clock. Advantageously, pre-charging energy is taken from the first stage, reducing the energy that was heretofore dissipated by clock driving circuitry during a negative-going clock signal transition. In this novel manner conversion efficiency of a charge pump device may be beneficially increased, providing enhanced low power performance.

The invention relates to a monitoring system for the electric quantity of a lithium battery. The monitoring system comprises a state monitoring unit, an electric quantity recording unit, an impedance tracking unit, an arithmetic element and the lithium battery, wherein the state monitoring state monitors the current output voltage, the output current and the ambient temperature of the lithium battery; the electric quantity recording unit records the input electric quantity during the charging of the lithium battery and the output electric quantity during the discharging of the lithium battery; the impedance tracking unit calculates the internal impedance of the lithium battery after the charging of the lithium battery is completed every time; the arithmetic element calculates the remaining electric quantity and the remaining working hour of the lithium battery according to input data; the system monitors the whole charging / discharging process of the lithium battery, takes a complete charging and discharging time as a period, dynamically updates battery capacity based on an integral method and eliminates the influence of the variation of the battery capacity; after the battery is fully charged every time, the impedance tracking unit of the lithium battery is started so as to update the internal resistor of the lithium battery; finally, the remaining electrical quantity and the remaining working time of the lithium battery are calculated by combining the environment temperature, the loading and the like.

The utility model discloses a detecting method of battery capacity, comprising the following steps: smoothed value of battery voltage can be get through wave filtering of sampling value of the battery voltage; current battery threshold is confirmed according to the prior business mode; promoting information is done according to the comparison result for the smoothed value of battery voltage and the battery threshold and the information is used for promoting current battery capacity. The utility model has the advantages of more accurately weighing rest capacity of the battery, remedying the failure that the rest capacity of the batter is confirmed through only using single sampling value of the battery voltage and single battery threshold for prior art and bringing good using experience for users through the embodiment, current battery threshold which is confirmed according to current business mode and current battery capacity which is get through comparison between the smoothed valve of the battery voltage and the battery threshold through wave filtering of a plurality of sampling value for battery voltage.

If a control portion determines, upon receipt of the service request information, that a battery does not have enough remaining voltage to start an engine, the control portion notifies the driver by sending a service rejection notification via the center. However, if the battery has sufficient remaining charge, when the operation start time is reached, the control portion performs the remote control operation service by causing the light to flash. Further, if the control portion detects that the voltage of the battery has reduced during the performance of the remote control operation service to a level at which starting the engine will be difficult, the control portion compulsorily terminates the remote control operation service that is being performed in order to make sure that the engine can be started.

A performance scheduler creates performance schedule of a battery based on use schedule of applications and residual charge level. A mode controller monitors and controls performance levels of a laptop personal computer according to the performance schedule. Further, when a charge counter counts a number of charge cycles of the battery and estimates residual charge level, a reduction in a charging capacity is taken into consideration based on the number of the charging times.

The invention discloses a battery equalizing device used for equalizing multiple battery units in a battery pack by utilizing an equalizing resistance, which comprises a controller, a resistance switching circuit and the equalizing resistance, wherein the resistance switching circuit is used for connecting the battery units specified by the equalizing resistance and the controller in parallel under the control of the controller; and the controller is used for collecting the voltage value of each battery unit in the multiple battery units, determining the residual electricity quantity of each battery unit according to the collected voltage and controlling the resistance switching circuit to connect the equalizing resistance with the battery unit in parallel under the circumstance that one battery unit meets the switching conditions, wherein the switching condition is as follows: the residual electricity quantity of the battery unit is higher than the specified value of the average residual electricity quantity of the multiple battery units. The battery equalizing device can intelligently equalize the battery units, effectively reduce the difference between the battery units and cansave the volume and the cost of equipment.

Systems and methods for removing residual charge from a processed wafer are described. Removal of residual charge eliminates de-chucking failure that may break or damage the wafer. Residual charge is removed by applying a reverse polarity discharging DC voltage to an electrode embedded in an electrostatic chuck (ESC) supporting the wafer, and providing an outlet to the residual charge to ground via a lift pin assembly. Lift pin assembly is kept at the same potential with respect to a pedestal of the ESC to avoid sparking during the application of RF power to generate plasma. A residual charge sensor is included to sense and measure the amount of residual charge, so that the parameters of the reverse polarity discharging voltage can be adjusted in a subsequent de-chucking operation.

The invention provides a method of a self-learning OCV (open circuit voltage)-SOC (system on a chip) curve and a calculating method of secondary battery hopower state SOC value. With the calculating method, SOC value calculated through the calculating method can accurately display dump energy of batteries. Different from conditions that non real time and inaccuracy of battery internal resistor measurement in the existing technology lead to inaccuracy of self-learning OCV-SOC curve, the method of the self-learning OCV (open circuit voltage)-SOC(system on a chip) curve and the calculating method of secondary battery hopower state SOC value calculate internal resistor value r in a set time through measuring the most value of battery current and battery terminal voltage in a preset time in self-learning OCV-SOC curve so as to calculate open-circuit voltage during the preset time. Battery resistor can discharge with battery and time change are fully considered, so that battery internal resistor can be accurately traced during charging and discharging process of batteries, evenly-distributed OCV-SOC corresponding points can be acquired, and more accurate OCV-SOC curve can be acquired.

Disclosed in the present invention are a method and a device for controlling power saving. The method comprises: monitoring an amount of remaining charge in a battery of a mobile device; and automatically adjusting a operation of the mobile device according to the monitored amount of remaining charge of the battery, the automatic adjusting comprising at least one of: changing a current value of a device parameter of the mobile device according to the monitored amount of remaining charge, and determining whether to turn off a user application and / or a device function that is currently active on the mobile device according to the monitored amount of remaining charge, so as to reduce the consumption of electricity from the battery.

The invention provides a liquid crystal display panel, a discharging method thereof and a display device. The liquid crystal display panel comprises a plurality of pixel structures arranged in a matrix mode, discharging ends, a plurality of scanning lines and data lines. Each pixel structure comprises a switch unit and a pixel unit connected with each other, and each switch unit is used for starting and stopping the corresponding pixel unit. The liquid crystal display panel further comprises a discharging circuit connected with the scanning lines, the data lines and the discharging ends and is used for enabling the scanning lines to conduct discharging scanning and starting the switch units, so that residual charges on the pixel units are discharged to the discharging ends through the data lines. According to the liquid crystal display panel, the discharging circuit is arranged, the residual charges on the pixel units are discharged more thoroughly, and appearance of residual images in the display process of the liquid crystal display panel or after display of the liquid crystal display panel is finished is further avoided.

The invention provides a device and a method for obtaining battery capacity. The device comprises a collection module, an analyzing module, a comparison module, a processing module and a conversion module, wherein the collection module is used for collecting the voltage value of a battery; the analyzing module is used for analyzing the voltage change value of the battery within a first pre-set time range according to the collected voltage value; the comparison module is used for comparing the voltage change value with a pre-set change threshold; the processing module is used for taking the real-time collected voltage value as a display voltage according to the comparison result in the case that the voltage change value is less than the change threshold, or, taking an offset voltage value obtained by carrying out compensation deals to the voltage value as a display voltage; and the conversion module is used for converting the display voltage into the residual capacity of the battery. When the voltage change amount is more than the pre-set threshold, a special algorithm is adopted to carry out compensation calculation to the real-time monitored voltage value through the real-time monitoring to the voltage and voltage variation of the battery, so that inaccurate capacity display caused by over-high instant power consumption during the state of starting or accelerating or vain capacity of the battery is avoided.

The invention discloses an electric quantity detection method for a chargeable battery. The method mainly comprises the following steps: detecting a change electric quantity of a chargeable battery at present time segment to updating an accumulated change electric quantity, and according to a battery absolute capacity and the accumulated change electric quantity, obtaining a battery actual residual electric quantity at present time segment; according to the battery actual residual electric quantity and the battery absolute capacity, updating present internal resistance potential drop of the battery; according to the present internal resistance potential drop, determining capacity correction threshold-voltage; according to the capacity correction threshold-voltage and the accumulated change electric quantity, calibrating a battery full charge available electric quantity and a battery residual available electric quantity at next time segment. The electric quantity detection method has the advantages of high precision, convenience of realization and the like. Correspondingly, the invention also discloses an electric quantity detection method for a chargeable battery. The apparatus comprises a detection module, an internal resistance potential drop updating module, a threshold-voltage calibration module and an electric quantity calibration module, and has the advantages of convenient operation, high measuring precision and the like.

The invention discloses a battery heating structure built into a motor driven system, and a method thereof. The method includes the following steps: a battery management system detects and acquires the voltage and the temperature of a power battery pack, and calculates remaining power information; the battery management system notifies the motor driven system to enter a heating state if the detected remaining power of the power battery pack is higher than a lower normal work limit, the lowest voltage is higher than a lower limit and the temperature is lower than a lower normal work temperature limit; the battery management system notifies the motor driven system to quit the heating state if not; the motor driven system quits a general work state and enters the heating state; the battery management system checks the state of the power battery pack in the heating state, and notifies the motor driven system to quit the heating state when the remaining power of the power battery pack or the lowest voltage is lower than the lower limit or the temperature of the power battery pack reaches the normal work temperature; and the motor driven system quits the heating state and enters the general work state. The battery heating built into the motor driven system, and the method thereof realize uniform heating and fast heating speed.

The invention discloses a method for prolonging the service life of a mobile terminal in a low battery mode and the mobile terminal. The mobile terminal comprises a battery (2), a voltage detection module (6), a voltameter module (5) a CPU (4) and a display screen (3). The voltameter module (5) is used for detecting the power consumption electric current (I) and dump energy (Q) of the mobile terminal (1) in real time. The voltage detection module (6) is used for detecting the battery voltage in real time. The CPU (4) is used for changing the auto power-off voltage threshold value of the mobile terminal (1) when the dump energy (Q) is judged to be smaller than a preset electric quantity threshold value (Q0) and the power consumption electric current (I) is larger than a preset current threshold value (I0). The CUP (4) is also used for displaying prompt information that the mobile terminal is in low battery through the display screen (3) when the battery voltage value is judged to range between a second auto power-off voltage threshold value (V2) and a first auto power-off voltage threshold value (V1).

In a vehicle having a battery and a generator, when a residual charge amount of the battery is reduced to a first predetermined amount, a power-generation command is output to a generator, and the battery is charged by the generator driven by an engine. When the residual charge amount is reduced to a second predetermined amount lower than the first predetermined amount, plural air-conditioning electrical devices are stopped. Thereafter, when the residual charge amount of the battery is increased to be larger than the second predetermined amount, the electrical devices are started at different start times.

This display module performs a high quality display by preventing the effect resulting from a residual charge of a data signal in the previous scanning remaining in a capacitor of a pixel circuit.The display module is provided with the pixel circuit having an active element that selects a pixel by a horizontal scanning signal supplied from a scanning line GL every intersection unit of multiple scanning lines GLs arranged in a matrix within a display region AR on a substrate SUB, a data holding element that holds a data signal supplied from the data line by the turn-on of this active element, and an organic light emitting diode OLED that emits light by the current supplied from a current supply line CSL in accordance with the data signal held in the data holding element, and a reset circuit RST that recovers at least either a capacitor CPR or a data line DL of the pixel circuit to an initial condition is provided before data for the pixel that corresponds to the next scanning line is sent to the data line after the scanning of the scanning line before one is finished.

The application of a non-zero voltage offset to rotating capacitors 1111 and 1112 permit the use of a single positive voltage supply. However, the precharging of the rotating capacitors 1111 and 1112 is power inefficient. A power efficient and low-noise precharging operation is realized through the sharing of the charge on a feedback capacitor 1075 and 1080 that is significantly larger than the rotating capacitors 1111. Once a precharging operation is complete, the charge on the feedback capacitor 1075 and 1080 is refreshed from its residual charge level (rather than zero charge level) to a desired charge level.

The invention particularly discloses a full-stage power lithium battery equalization method and device based on the absolutely chargeable and dischargeable capacity. The equalization device comprises two parts, namely, a first part referring to an energy source switching device, and a second part referring to a charging device, wherein the first part provides a standard direct-current power supply voltage for the second part. The equalization method comprises the steps of: (1) collecting data of single batteries through a battery management system of each battery; (2) estimating the values of surplus capacity and full capacity of each single battery; (3) calculating value of the absolutely chargeable and dischargeable capacity of each single battery; (4) realizing charging equalization; and (5) realizing discharging equalization. Through the estimated battery voltage value in a charging stage and the estimated battery surplus capacity value in a discharging stage, the full-stage power lithium battery equalization method and device based on the absolutely chargeable and dischargeable capacity, disclosed by the invention, not only solve the problem that all batteries can not be fully charged in the charging stage, but also solve the problem that the discharge capability is insufficient due to low capacity of certain batteries in the discharging stage.

A discharge control apparatus for discharging a residual charge that accumulates in a smoothing capacitor interposed between a direct current main power supply and an inverter, which performs a voltage conversion between a direct current power and an alternating current power, and remains in the smoothing capacitor when a connection between the inverter and the main power supply is cut, the discharge control apparatus. The discharge control apparatus having a backup power supply and a discharge control unit that is provided independently of a driver circuit for applying a switching control signal to a switching element constituting the inverter in order to operate the switching element in a saturation region, and that generates a discharge control signal for operating the switching element in an active region and applies the generated discharge control signal to the switching element.

First, the method obtains the group of relation curves and fitting functions between the surplus energy and the open circuit voltage in the service time of lithium ion batteries. Based on the modified module value of the low frequency alternating current impedance, the one of the said curve or fitting function is selected. Based on the open circuit voltage and the selected fitting function, the surplus energy of the battery is calculated out. The device includes the cast and the internal circuit boards composed of interconnection of the microcomputer, the circuit for controlling the charge current, the amplification circuit for charging and discharging current signal, the current measurement circuit and thue pure oscillator etc.

A method for driving a display device includes sequentially applying a gate turn-on voltage to respective gate lines of the device during successive image display periods thereof, applying a respective one of a plurality of successive data signals, each corresponding to a respective one of the gate lines, to a plurality of data lines of the device while the gate turn-on voltage is being applied to the corresponding gate line, applying the gate turn-on voltage to all of the of gate lines of the device during successive vertical blanking periods of the device that alternate with the image display periods, and applying a dummy data signal to the data lines while the turn-on voltage is being applied to the gate lines. The dummy data signal forcibly discharges any residual charges in the pixel storage capacitors to prevent the occurrence of residual images in the display.