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650results about How to "Improve charging efficiency" patented technology

Wireless charging sending device, wireless charging system and wireless charging control method

The invention provides a wireless charging sending device, a wireless charging system and a charging control method thereof. The sending device comprises an emission coil used for emitting electricity energy of the sending device, an oscillating and frequency-modulating module used for enabling the emission coil to generate LC resonance and modulating the capacitance in the LC resonance so as to change the resonance frequency of the LC resonance, an emission end sampling module used for collecting voltage and currents of the sending device, a first control module used for controlling the resonance frequency of the LC resonance in the oscillating and frequency-modulating module and controlling the charging energy sending process according to the collected voltage and the collected currents of the sending device, the voltage of a receiving device and resonance frequency corresponding to the highest charging efficiency, a first communication module used for wireless communication between the sending device and the receiving device, and a power supply module. The sending device, the charging system and the charging control method can realize the adjustment of the resonance frequency of the LC resonance so as to have the advantage of improving the charging efficiency of the charging system.
Owner:BYD CO LTD

Laser positioning intelligent connection electric vehicle wireless charger and transceiver system

The invention provides a laser positioning intelligent connection electric vehicle wireless charger and transceiver system which comprises an emitting part which is formed by a wireless charging cabinet (1), a positioning pole (2), an ultrasonic longitudinal positioning device (3), a laser transverse positioning device (4), an electric driving longitudinal movement positioning mechanism (5), an electric driving transverse movement positioning mechanism (6), an intelligent connection lifting and positioning device (7), a connection information integrated sensor (8), an induction launcher (9) and a sliding base (10). The system also comprises a receiving part which is formed by an induction receiving device (11), a digital positioning target (12), a rectifier and output power distribution unit (13) and an electric quantity display screen (14). The system is equipped with a laser automatic positioning and intelligent automatic connecting device, when a driver parks for wireless charging at a parking place, finding a wireless charging accurate position is not needed, only driving a vehicle to the parking plate as usual is needed, the highly efficient wireless charging can be realized, and the system has the advantages of worry saving and labor saving, high charging efficiency, and small high frequency leakage.
Owner:KUNSHAN BOYU AUTOMOBILE DIGITIZATION

Automatic charging system based on snakelike-simulated mechanical arm and method

The invention discloses an automatic charging system based on a snakelike-simulated mechanical arm. The automatic charging system comprises the snakelike-simulated mechanical arm, a charging device and a control system, and further comprises all control and execution modules, the control and execution modules are mutually matched, and whether to-be-charged vehicles exist or not can be automatically induced through a vehicle induction module; a charging-port pre-alignment module identifies charging ports through installed sensors, and general orientations of the charging ports are preliminarilycalculated; a main control module of a microcomputer is prepared, and is installed in a charging pile base, and the main control module controls the mechanical arm to clamp charging guns to move in the pre-alignment direction; an accurate alignment module of a snakehead-simulated joint accurately determines positions of the charging ports through the corresponding sensors and charges the to-be-charged vehicles. According to the automatic charging system based on the snakelike-simulated mechanical arm, vehicle using experiences of new-energy vehicles and automatic guide vehicles are greatly improved, the automatic charging requirements of automatic sites such as automatic-parking-place vehicles are met, a complete automatic parking and automatic inter-vehicle service system is formed, thelabor cost is greatly reduced, and the running efficiency is improved.
Owner:TONGJI UNIV

Charging scheduling system based on electric vehicle charging priority and method thereof

InactiveCN104933466ARich data typesReasonable solutionReservationsForecastingEngineeringElectric vehicle
The invention discloses a charging scheduling system based on an electric vehicle charging priority and a method thereof. The system comprises a child node apparatus and an anchor node device. The sub-node apparatus is installed on a child node charging pile and is used for collecting charging pile data. The anchor node device is installed on an anchor node charging pile and is used for data integration and processing, executing a charging scheduling algorithm, processing user feedback information and carrying out charging scheduling. According to a position of an anchor node, area division is performed. One anchor node manages several child nodes. Data collection and operation efficiency are increased. By using the charging scheduling algorithm, according to information of an electric vehicle and the charging pile, charging priority degree assessments are performed twice; global comparison is performed on a final priority degree assessment value; relative priorities of the electric vehicle on each reachable charging pile are determined so that global solution is realized. By using the system and the method in the invention, a utilization rate of a charging pile resource and charging efficiency of the electric vehicle are increased; and charging system performance of the electric vehicle is improved.
Owner:WUHAN UNIV +1

Non-stop toll collection method and vehicle toll collection system

The embodiment of the invention discloses a non-stop toll collection method and a vehicle toll collection system which automatically complete toll collection without stopping a vehicle, do not need to use an ETC device or scan a code, and improve toll collection efficiency. The method comprises steps that the vehicle toll collection system firstly receives a first toll collection instruction sent by a vehicle license recognition device after the vehicle license recognition device captures the license number corresponding to the vehicle at a toll gate entrance, wherein the license number corresponding to the vehicle is bound to an electronic payment account; the vehicle toll collection system charges the license number according to the first toll collection instruction; the vehicle toll collection system receives a second toll collection instruction sent by the vehicle license recognition device after the vehicle license recognition device captures the license number corresponding to the vehicle at a toll gate exit; the vehicle toll collection system generates an electronic payment receipt of the license number according to the second toll collection instruction; and the vehicle toll collection system deducts the charge from the electronic payment account bound to the license number according to the electronic payment receipt.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Super-wide-temperature-range nickel-hydrogen battery and manufacturing method therefor

The invention discloses a super-wide-temperature-range nickel-hydrogen battery. The battery comprises an iron shell as well as a nickel electrode, a hydrogen electrode, a diaphragm and an electrolyte solution mounted in the iron shell, wherein the nickel electrode takes foam nickel as a substrate material; the space in foam nickel is filled with a positive electrode active substance Ni(OH)2, a conductive agent, an additive and a binder; the hydrogen electrode takes a porous nickel-plated steel belt, a copper net or foam nickel as a substrate material; the porous nickel-plated steel belt, the copper net or foam nickel is coated with a negative electrode active substance, namely, hydrogen storage alloy powder, the conductive agent, the additive or the binder; and the electrolyte solution is a mixture of a potassium-rich alkaline aqueous solution and sodium tungstate or tungstic acid crystals. The invention furthermore discloses a manufacturing method for the super-wide-temperature-range nickel-hydrogen battery. According to the super-wide-temperature-range nickel-hydrogen battery disclosed by the invention, the ratio of 0.2C discharge capacity to normal-temperature capacity maximally can reach 70-80% in an environment with the temperature of -45 DEG C; and the ratio of 0.2C discharge capacity to normal-temperature capacity of the nickel hydrogen battery maximally can reach 85-95% in an environment with the temperature of 70 DEG C. Moreover, the manufacturing method is simple and suitable for large-scale production.
Owner:HENGYANG BST POWER

Array substrate line drive unit and circuit, and liquid crystal display panel

The embodiment of the invention discloses an array substrate line drive unit and circuit, and a liquid crystal display panel. An output end of a pull-up control module of an array substrate line driveunit, a control end of a pull-up module, a first end of a pull-down maintenance module, a first end of a pull-up module, a control end of a signal download module and a first end of a bootstrap module are connected with a gate signal point, a second end of the pull-down maintenance module, a second end of the pull-down module, a second end of the bootstrap module and an output end of the pull-upmodule are connected with a horizontal scanning line, a third end of the pull-down maintenance module and a third end of the pull-down module are connected with a first level signal line, a fourth endof the pull-down maintenance module and a fourth end of the pull-down module are connected with a second level signal line, an input end of the pull-up module and an input end of the pull-down moduleare connected with a clock signal line; and the voltage of the first level signal line is smaller than the voltage of the second level signal line. The array substrate line drive unit and circuit, and a liquid crystal display panel can shorten the fall time of the gate signals and can improve the charge efficiency.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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