235 results about "Dynamic charging" patented technology

An online method and apparatus for determining state of charge (SoC) and state of health (SoH) of batteries on platforms that present dynamic charge and discharge environments is disclosed. A rested open circuit voltage (OCV) may be estimated online using a battery dynamic model along with measured terminal voltage, current and temperature. The SoC and SoH can then be determined from this estimated OCV. The apparatus and methods may estimate SoC and SoH of a battery in a real-time fashion without the need to a) disconnect the battery system from service; b) wait for a predefined rest time; or c) depolarize the battery.

This invented driving protection circuit for inverse impadance insulated-gate bipolar transistor is composed of: (1). a controller; (2). a three-section driving circuit, comprising a dynamic charging current source, a dynamic discharging current source a push-pull amplifier circuit series connected with them; (3). a detecting circuit, when the device being of power-on, it cotnrols the rising-rate of the current at the collector; on the other hand, when power-off, it controls the rising-rate of the voltage at the collector; and (4). a RB-IGBT over-current protection circuit for V(Ce) detection, being connected to the collector of said inverse impadance insulated-gate bipolar transistor. It has two V(Ce) detection schemes.

The present invention provides a wireless charger including a sensing device, a charging coil array and a processor. The sensing device determines the shape of the recharging area of an electronic device placed on the wireless charger. The charging coil array includes a plurality of dynamic charging coils and selectively turns on a part of the dynamic charging coils. The processor drives the part of the dynamic charging coils to charge the electronic device by wireless charging, wherein the part of the dynamic charging coils of the charging coil array is corresponding to the shape of the recharging area.

The present invention provides dynamic charge state cationic polymers that are useful for delivery of anionic molecules. The dynamic charge state cationic polymers are designed to have cationic charge densities that decrease by removal of removable functional groups from the polymers. The present invention also provides interpolyelectrolyte complexes containing the polymers complexed to a polyanion. Methods for using the interpolyelectrolyte complexes to deliver anionic compounds are also provided.

A liquid crystal display includes a liquid crystal display panel having a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time at which a polarity of a data voltage to be supplied to the data lines is inverted, to activate a dynamic charge share control signal to indicate a time at which the gray level of the data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, to detect weakness patterns in which the data of the white gray level and the black gray level are regularly arranged in the input digital video data, and to activate a dot inversion control signal for widening a horizontal polarity inversion period of data voltages to be supplied to the data lines when the weakness patterns are input, a data driving circuit to convert the digital video data from the timing controller into the data voltage, to convert the polarity of the data voltage, to supply any one of a common voltage and a charge share voltage between a positive data voltage and a negative data voltage to the data lines in response to the dynamic charge share control signal, and to widen the horizontal polarity inversion period of the data voltages in response to the dot inversion control signal, and a gate driving circuit to sequentially supply a scan pulse to the gate lines under the control of the timing controller.

A method and apparatus for charging batteries in a system of batteries. The method and apparatus involve producing a set of state of charge signals indicative of the states of charge of each battery in the system, successively identifying, from the state of charge signals, a most discharged battery in the system and applying a charging current to the most discharged battery for at least part of a first period of time less than a period of time required to fully charge the most discharged battery before identifying a succeeding most discharged battery in said system. The batteries are charged according to a dynamic charging sequence in which batteries are added into the charging sequence in order of increasing state of charge as batteries already in the charging sequence are charged to exceed the state of charge of a battery having the next higher state of charge relative to the state of charge of the batteries already in the charging sequence.

A charging apparatus with dynamical charging power is configured to charge an electric vehicle. The charging apparatus includes a main power conversion unit, an auxiliary power conversion unit, and a control unit. The main power conversion unit receives an AC power and converts the AC power into a main output power. The auxiliary power conversion unit receives an auxiliary DC power and converts the auxiliary DC power into an auxiliary output power. The control unit controls maximum output power of the main output power to be an upper-limit output power value. When a charging power value of charging the electric vehicle is greater than the upper-limit output power value, the control unit dynamically controls the auxiliary output power according to a power difference value between the charging power value and the upper-limit output power value.

The invention discloses a flexible charging method and charger of an electric car. The flexible charging method is characterized in that BMS data of the electric car is collected in real time during charging, the collected BMS data is compared with the target charging data, power conversion modules can be controlled to be adjusted, so as to achieve the optimum charging current until the end of charging. According to the flexible charging method and charger of the electric car, under the condition of meeting demands of users, proper dynamic charging current is output to charge the battery, the aging speed of the battery is decreased, and the service life of the battery is further prolonged.

The invention provides a cathode for lead-carbon batteries, a production method of the cathode and a battery made with the cathode. The cathode comprises, by weight, 8.5 to 10 parts of sulfuric acid, 0.5 to 1.5 parts of barium sulfate, 0.1 to 0.4 part of organic expander, 0.05 to 0.2 part of short fiber, 0.2 to 5 parts of graphene nanoribbon, 0.01 to 0.5 part of silane coupling agent, 0.05 to 0.08 part of dispersant, 10 to 15 parts of pure water, 0.06 to 0.12 part of nano-titanium dioxide and nano-silicon dioxide, and 70 to 80 parts of lead powder. Effective improvement is brought to both dynamic charge acceptance and cycle life of the battery made with the cathode.

The invention provides a self-adaptive prediction method for the running temperature of a power battery. The self-adaptive prediction method comprises the following steps: during the dynamic charge-discharge process of a power battery, real data causing temperature variation of the power battery can be collected, current predicted value during the running of the power battery is obtained, the parameter original value of a temperature predictive model and the parameter original value of a heat production computation module are determined; coupled calculation to the temperature predicted value of the power battery and the heat production predicted value during the charge-discharge process can be performed; self-adaptive identification to the parameters of the temperature predictive model and the parameters of the heat production computation module can be performed so as to obtain modified temperature predictive model parameters and the heat production computation module parameters; the running temperature of the power battery can be calculated according to the modified temperature predictive model parameters and the heat production computation module parameters. The method is suitable for prediction to temperature variation of the power battery, caused by dynamic charging and discharging, temperature variation predicted values of the power battery can be given in real time, and state predicting precision of the power battery can be further improved.

A liquid crystal display includes a liquid crystal display panel having a plurality of data lines, a plurality of gate lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time at which a polarity of a data voltage to be supplied to the data lines is inverted and generate a dynamic charge share control signal to indicate a time at which the gray level of the data voltage is changed from a white gray level to a black gray level and a time at which the polarity of the data voltage is inverted, and to detect weakness patterns in which the data of the white gray level and the black gray level are regularly arranged in the input digital video data and generate a dot inversion control signal for widening a horizontal polarity inversion time of data voltages to be supplied to the data lines when the weakness patterns are input, a data driving circuit to convert the digital video data from the timing controller into the data voltage, change the polarity of the data voltage, supply any one of a common voltage and a charge share voltage between a positive data voltage and a negative data voltage to the data lines in response to the dynamic charge share control signal, and widen the horizontal polarity inversion time of the data voltages in response to the dot inversion control signal, and a gate driving circuit to sequentially supply a scan pulse to the gate lines under the control of the timing controller, wherein the liquid crystal display panel includes first and second liquid crystal cell groups whose polarity is inverted every 2 frame periods, and a polarity inversion time of the first liquid crystal cell group and a polarity inversion time of the second liquid crystal cell group overlap.

The invention provides an electric car dynamic wireless power supply system based on a resonance magnetic coupling technology and method. The system comprises a power module, a rectification and filtration module, a power oscillation module, an orientation module, a signal control module, an emission unit switching control module, electromagnetic field emission units and electromagnetic field receiver units; the power module, the rectification and filtration module, the power oscillation module, the emission unit switching control module, the signal control module and the orientation module are sequentially connected, and the emission unit switching control module is connected with the plurality of electromagnetic field emission units, and the electromagnetic field receiver units are arranged on an electric car. By adopting the electric car dynamic wireless power supply system, the electric car can be charged dynamically during a driving process, so that the problems of short cruising distance and huge financial consumption of a static charging station of a conventional electric car can be overcome; moreover, the construction is convenient, the transmission capacity is high, the electromagnetic radiation impact is small, and the requirement of beautifying a city can be met, the market prospect is broad.

In a method of dynamic charge sharing for a display device, it is determined whether a current line of a data driver has polarity inverted from a preceding line. Charge sharing is performed globally, if it is determined that the current line is polarity inverted from the preceding line. It is further determined whether the current line and the preceding line are substantially different, if it is determined that the current line is not polarity inverted from the preceding line. Charge sharing is performed in groups if it is determined that the current line and the preceding line are substantially different; otherwise, no charge sharing is performed.

The invention provides a method and device for estimating the power state of a power battery system, and the method comprises the steps: obtaining the maximum output power of a battery pack under the preset temperature in different electrical charge states; obtaining a first preset coefficient according to the equivalent internal resistance of the battery pack under different temperatures; and estimating the output power of the battery pack according to the first preset coefficient and the maximum output power. The method does not need a battery internal resistance model, can achieve the estimation of the power of a battery in a dynamic charging and discharging process of the battery, and effectively improves the SOP estimation precision.

A liquid crystal display includes a liquid crystal display panel including a plurality of data lines, a plurality of gate lines crossing the plurality of data lines, and a plurality of liquid crystal cells, a timing controller to determine gray levels of input digital video data and a time when a polarity of a data voltage to be supplied to the data lines is inverted, and to generate a dynamic charge share control signal when the gray level of the data voltage is changed from a white gray level to a black gray level and the polarity of the data voltage is inverted, a data driving circuit to convert the digital video data from the timing controller into the data voltage, changing the polarity of the data voltage, and supplying any one of a common voltage and a charge share voltage to the data lines in response to the dynamic charge share control signal, and a gate driving circuit to sequentially supply scan pulses to the gate lines under the control of the timing controller.

The invention relates to an intelligent solar photovoltaic power supply system which comprises a solar panel, a lithium ion battery pack and an intelligent management unit, wherein the intelligent management unit comprises a solar panel interface, a lithium ion battery pack interface, a load interface, an RS485 communication interface, a measuring and sampling circuit, a measuring signal modulating circuit, a dynamic charging and discharging management integrated circuit, an output voltage regulating and stabilizing circuit, a microprocessor and an MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor); the measuring and sampling circuit is connected with the solar panel through the solar panel interface; the dynamic charging and discharging management integrated circuit is respectively connected with the measuring and sampling circuit and the output voltage regulating and stabilizing circuit; the measuring signal modulating circuit is connected with the measuring and sampling circuit; and the microprocessor is respectively connected with the RS485 communication interface, the measuring signal modulating circuit, the dynamic charging and discharging management integrated circuit and the MOSFET. Compared with the prior art, the invention has the advantages of the function of dynamic charging and discharging management and the like.

The invention discloses a method for improving the dynamic wireless charging mean efficiency, and the method comprises the steps: the winding of a transmission coil, the measurement of parameters of the transmission coil, the precise measurement of the offset coupling efficiency of the coil, the calculation of theoretical input resistance, and the determining of the type of a front-end chopper circuit and the duty ratio of a battery. Aiming at a common serial dynamic resonance wireless charging system, the method sets theoretical parameters according to the parameters of an actual transmission circuit. Because the method employs the specific chopper circuit to achieve the impedance conversion, the method can meet the charging requirements under the conditions of various types of battery internal resistance, and enlarges the application range of the actual system. The method weakens the impact on the wireless charging efficiency from the change of a coupling coefficient of the position change of the coil during the dynamic charging of the serial dynamic resonance wireless charging system, guarantees the maximum mean efficiency of dynamic charging to the greatest extent, and improves the transmission characteristics of the wireless charging system. According to the invention, a rectification circuit and the chopper circuit in the method are common circuits, and the number of parts of the system is small. The method is high in practicality.

A method for enabling exchange of dynamic charging information between a calling user and a called user and negotiation of said charging information, wherein the calling user belongs to a public switched telephone network/public land mobile network (PSTN/PLMN) network and the called user belongs to an Internet Protocol (IP) Multimedia Subsystem (IMS)/Session Initiation Protocol (SIP)/Voice over Internet Protocol (VoIP) network. In another embodiment herein, the calling user belongs to an Internet Protocol (IP) Multimedia Subsystem (IMS)/Session Initiation Protocol (SIP)/Voice over Internet Protocol (VoIP) network and the called user belongs to a public switched telephone network/public land mobile network (PSTN/PLMN) network.

The invention discloses an electric vehicle dynamic charging method and system based on a shortest Hamilton loop. The electric vehicle dynamic charging method comprises the following steps of determining electric vehicles needed to be charged in a predetermined area according to the running path, current power consumption rate, residual electric quantity and current position of each electric vehicle, calculating the distance between each electric vehicle needed to be charged and a charging station closest to the electric vehicle, calculating the shortest charging time of an electric power supplementing vehicle for each electric vehicle needed to be charged according to the distance between each electric vehicle needed to be charged and the charging station closest to the electric vehicle, determining the running route of the electric power supplementing vehicle based on the shortest Hamilton loop, and controlling the electric power supplementing vehicle to sequentially charge all electric vehicles needed to be charged according to the running route of the electric power supplementing vehicle and the shortest charging time of the electric power supplementing vehicle for each electric vehicle needed to be charged. The electric vehicle dynamic charging method has the advantages of being high in flexibility and saving the cost.

The invention relates to a highway (II) for long-distance traveling of an electric car. The highway is characterized in that a special lane which can be used for the electric car to travel is established on an express highway and a long highway, wherein the special lane is provided with a control device and a power supply device of a charging facility which is used for charging the running electric car, the control device of the charging facility is arranged in a control box or a control room which is arranged on one side of the special lane, and the power supply device is arranged on one side of the special lane. Once the express highway or the long highway is provided with the special lane for charging the running electric car, the electric car can travel freely across cities and provinces as a gasoline car. Once the static charging and the dynamic charging of the electric car are realized in China and in the world, the low-carbon development of the car can be reality.