47results about How to "Reduce charge rate" patented technology

Methods and systems are provided for controlling a power transfer rate in to and/or out of a vehicle energy storage device to affect a current state of charge of the energy storage device. The vehicle may be on a mission comprising a plurality of future power transfer opportunities. In one example, the method comprises adjusting the power transfer rate based on an estimated duration of a future power transfer opportunity. Further, the method may include, if the estimated duration of the future power transfer opportunity is different from a predetermined threshold, changing the power transfer rate at the future power transfer opportunity. The method allows the operating life of the energy storage device to be extended.

A battery management system includes one or more lithium ion cells in electrical connection, each said cell comprising: first and second working electrodes and one or more reference electrodes, each reference electrode electronically isolated from the working electrodes and having a separate tab or current collector exiting the cell and providing an additional terminal for electrical measurement; and a battery management system comprising a battery state-of-charge monitor, said monitor being operable for receiving information relating to the potential difference of the working electrodes and the potential of one or more of the working electrodes versus the reference electrode.

A power charger circuit converts input energy to DC output energy, with the input energy flowing in a first direction such as via a cable having multiple conductors to provide the output energy, with the power charger including at least one switch having an open state and a closed state, the open state to interrupt the flow of input energy and the power charging circuit allowing for energy flow in a second direction opposite the first direction so that the switch may be moved to the closed state.

A zinc acrylate particle composition which is substantially fine and, even when kneaded with a rubber composition, is capable of being uniformly dispersed and kneaded in a state very rarely inducing fast adhesion or agglomeration, a method for the production thereof, and a golf ball using the composition are provided. The zinc acrylate particle composition contemplated by this invention comprises zinc acrylate satisfying the conditions that the proportion accounted for by the zinc acrylate particles measuring not less than 300 μm in particle size as determined by the dry type method be not more than 20% by mass of all the particles, that the median of particle sizes as determined by the dry type method be in the range of 10-300 μm, and that the ratio of the median (A) of particle sizes as determined by the dry type method to the median (B) of particle sizes as determined by the wet type method exceed 2, and an anionic surfactant.

The controllable arrester in metal oxide includes control part and fixed part connected in series. In normal operation of system, the control part and the fixed part together bear system voltage. When amplitude value of system over voltage exceeds prearranged threshold value, the fixed part bears system over voltage. Combining power electronic device in large power with arrester in metal oxide (MO), the invention puts forward concept and designing idea of controllable arrester for aiming at issue of over voltage protection for transmission system in super voltage, extra high voltage. Based on condition of maintaining invariable performance parameters of MO resistance piece, the invention reduces residual voltage of arrester effectively by using characteristics: quick response speed of power electronic device, steady operation, and flexible adjustment so as to raise protection level for arrester.

A metal-resin composite having high gas sealing properties is provided. An aluminum alloy structure having a shape surrounding the copper 63 is firstly formed, and the attached aluminum alloy is made closely contact with the copper electrode 63 and further made engaged into the copper electrode 63 by pressing or forging. It is then machined into a predetermined shape so as to prepare the copper alloy 63 attached with an aluminum alloy part 61a. Subsequently, the surface treatment of the NMT or NMT 2 is given to three members of an aluminum electrode 62, the copper electrode 63 attached with the aluminum alloy part 61a and an aluminum alloy lid 61. These three members are inserted into an injection mold, and a thermoplastic resin composition 64 of PPS resin is injected. The lithium-ion battery lid 60 having a structure as shown in FIG. 11 is thus obtained.

A roll cover of the invention is a tubular roll cover made of a thermoplastic fluoropolymer for covering a round rod-like or cylindrical roll body, wherein the thermoplastic fluoropolymer contains from 0.5 to 5% by weight of a carbon nanotube. Since the thermoplastic fluoropolymer thus contains from 0.5 to 5% by weight of the carbon nanotube, the roll cover of the invention can secure necessary conductivity, in other words, have low chargeability of static electrification, secure good antistatic property and prevent an offset phenomenon by static electrification. Further, flexibility, mold releasability, surface cleanability and the like inherent in an ordinary fluoropolymer can be maintained well.

A method for charging a rechargeable battery, and a protection circuit for the rechargeable battery. The protection circuit perceives whether the battery is charged or not by sensing the voltage of the bare cell, changes the direct voltage applied between a gate electrode and a source electrode of a charging field effect transistor, which is connected in series between one terminal of the bare cell and one terminal of a charger, and controls the amount of the current flowing from the source electrode of the charging field effect transistor to a drain electrode at a low level, thereby maintaining a low charging rate of the battery.

In a power control device for a vehicle in which an electric motor for driving the vehicle to travel is supplied with power from a battery mounted on the vehicle and a fuel cell, a control unit sets a target charging rate (SOCt) of the battery in such a manner that the target charging rate decreases as a remaining fuel amount (Qf) of the fuel cell decreases after the power generation of the fuel cell is started during high-output/high-speed travelling and controls a power generation output (Pf) of the fuel cell based on a difference between the target charging rate (SOCt) and a current charging rate (SOC).

The invention provides a DC controllable lightning arrester device. The DC controllable lightning arrester device comprises a lightning arrester body and a hybrid switch, wherein the lightning arrester body comprises a lightning arrester fixed part and a lightning arrester controllable part, the lightning arrester fixed part and the lightning arrester controllable part respectively comprise at least one column of lightning arrester units, one end of a parallel circuit formed by the lightning arrester controllable part and the hybrid switch is grounded, the other end is connected with the lightning arrester fixed part, the hybrid switch comprises a thyristor valve switch and a mechanical switch which are connected in series, and the hybrid switch is connected with two ends of the lightningarrester controllable part in parallel. The DC controllable lightning arrester device is advantaged in that the thyristor valve switch and the mechanical switch are utilized to form the high voltage DC hybrid switch type controllable lightning arrester, the thyristor switch is ensured to be reliably turned off, so the lightning arrester returns to normal operation, the lightning arrester body achieves dual functions of energy release and overvoltage suppression, a charge rate of the whole lightning arrester under the operation voltage is reduced, the safety margin of the lightning arrester isimproved, and reliability of the lightning arrester is enhanced.

A service request resolution system for resolving requests from customers, the system including a plan maintenance component, including one or more processors, to maintain plans that include an inventory data structure detailing inventory of a plurality of customers, an expert guidance maintenance component including a request resolution data structure including possible actions to resolve requests in respect of items of inventory detailed in the inventory data structure, and an expert guidance system, including one or more processors, operable to dynamically activate and/or deactivate components of the request resolution data structure, the activation or deactivation of components effected according to the plan of a specific customer.

A method avoids lithium plating of a negative electrode in a battery cell. A voltage level of a positive electrode is determined in an initial battery charging process having a charging power level. A charging rate is modified in response to the determined voltage by increasing or decreasing the charging rate when the voltage is respectively less or greater than a voltage threshold. A charging profile is recorded for the power level. A subsequent charging process at the same power level is controlled using the recorded profile, which is possibly age-indexed to an age of an actual battery used in the subsequent charging process. A system includes the battery cell and a battery cell cycler device programmed to execute the method. An electric machine may be connected to the battery cell and a load, with a controller controlling the subsequent charging process using the profiles.

The invention is applicable to the technical field of power batteries and provides a charging management method for power batteries. The method comprises the following steps: S1, obtaining the currentremaining quantity of electric charge of the power battery; S2, reading the charge rate corresponding to the remaining quantity of electric charge, wherein a remaining quantity of electric charge-charging rate mapping table is stored in the power battery; and S3, charging the battery according to the charge rate corresponding to the current remaining quantity of electric charge. A negative electrode material lithium graphite intercalated compound has four phases in lithium intercalation and lithium deintercalation processes; and at the phase transition point, the voltage becomes high and thedV/dQ value becomes large, the ratio of the dV/dQ fitting value to the dV/dQ measurement value is used as the electric current rate factor of the corresponding quantity of electric charge, and the charging rate at the sudden changing point is lowered so as to reduce the damage of the phase change stress during the phase change to the battery.

The embodiment of the invention discloses a driving device and a driving method of a liquid crystal display module and a liquid crystal display device. In one specific embodiment, the driving method comprises the following steps: receiving a to-be-displayed picture frame signal, and judging whether at least part of a picture region, containing a picture region displayed by a first row of pixels, of a to-be-displayed picture is a row bright and dark alternated picture or not according to the picture frame signal; if yes, applying a gate driving signal based on a first conduction voltage to the TFT gate of the first row of pixels so as to pre-charge the first row of pixels according to the pixel voltage of the first row of pixels corresponding to the picture frame signal; if not, applying a gate driving signal based on a second conduction voltage to the TFT gate of the first row of pixels so as to pre-charge the first row of pixels according to the pixel voltage of the first row of pixels corresponding to the picture frame signal, wherein the first break-over voltage is smaller than the second break-over voltage. According to the embodiment, when the display module displays different pictures, the problem that display of the first row of pixels becomes dark or bright can be avoided.

An array substrate, manufacturing method thereof and display device are provided. The array substrate includes a plurality of scan lines, a plurality of data lines intersecting with the plurality of scan lines to as to define a plurality of pixel areas; a plurality of auxiliary segments, and each scan line and/or each data line respectively corresponding to at least a auxiliary segment, the scan line and/or data line and the corresponding auxiliary segment forming capacitive coupling to reduce signal delay on the scan line and/or data line. As such, the signal delay on the scan line and/or data line is reduced, and the charging rate and display effect are improved.