442results about How to "Charging safety" patented technology

The battery pack updating method updates firmware stored in internal control circuit memory 24 via an update signal sent from a main device 1 that supplies power. When battery pack memory is updated, an AC adapter 3 is connected to the main device, and power is supplied to the main device from the AC adapter. The updating method transmits a charging and discharging blocking signal from the main device to the battery pack 2 control circuit 21 via a communication line 19. The charging and discharging blocking signal stops discharge from the battery pack 2 rechargeable battery 20, and stops charging of the rechargeable battery 20. With rechargeable battery 20 discharging and charging to and from the main device stopped by the charging and discharging blocking signal, the updating method transmits update data from the main device to the battery pack 2 control circuit 21 to update memory 24.

An ECU detects a rated current that can be supplied from a power supply to a power storage device, based on a pilot signal. If a combination of detected values of a voltage; the rated current and a power supply frequency matches a predefined combination, the ECU executes charging with a voltage, a current and a frequency in accordance with the combination. On the other hand, if it is determined that the combination of the voltage, the rated current and the frequency does not match any one of predefined combinations and if it is determined that the power supply itself is normal, the ECU executes charging by limiting a charging current to a predefined minimum rated current value. If it is determined that the combination of the voltage, the rated current and the frequency does not match any one of predefined combinations and if it is determined that the power supply is abnormal, the ECU prohibits charging.

The invention provides a charging method and a user equipment, and the charging method comprises the following steps: measuring the maximum output current value of a charger according to a received quick charge command; setting a charging current value for a battery of the user equipment according to the maximum output current value; receiving a first charging current corresponding to the charging current value from the charger; and disconnecting from the charger if the detected charging temperature of the battery is higher than a preset temperature. By adopting the charging method and the user equipment, the problems that the charger is damaged due to overload during emergency charge in the prior art and the charge explosion of the battery of the user equipment is caused due to too high charging temperature can be solved, and the safe and quick charge can be realized.

A USB Type-C interface chip having a CC pin. In an embodiment, the chip includes an internal unit coupled through a signal path to the CC pin; a high voltage detection unit coupled in the signal path, for detecting a voltage at the CC pin and comparing the detected voltage and a reference voltage; a high voltage protection unit for protecting, in response to the comparison result of the high voltage detection unit the internal unit from high voltage possibly present at the port of the chip.

A dedicated power supply apparatus includes a regulator that receives power from an external power source, two signal lines to which the regulator is connected, and two resistors, each placed between the regulator and an associated one of the two signal lines.

The invention provides a dual channel charging method, a system and a terminal thereof. In the method, when a processor receives a current wired charging state and a current wireless charging state, according to a charging current allowed by a current cell and a Joule law, currents needed by wired and wireless dual channels are calculated respectively, charging current and charging voltage configurations are performed on a first power supply management chip and a second power supply management chip respectively so that the first power supply management chip and the second power supply management chip charge the cell based on the configurations. In embodiments of the invention, two completely isolated charging channels are used, which are one wired charging channel and one wireless charging channel; under the condition that wired and wireless charging are simultaneously performed, simultaneously, a whole charging process is ensured to be safe; a load loss of each charging channel is reduced and charging heating is reduced so that purposes of increasing charging efficiency, shortening charging time and increasing a user experience are reached.

The present application provides a charging system having a charger and a battery. The charging system provides a quick-charging mode and a normal-charging mode. The quick-charging mode may be activated to charge the battery if certain conditions are met and the charging system may also have an indicating device for indicating when the quick-charging mode is finished. More specifically, the charger of the present application provides selective charging modes and provides an ultra-quick charging solution which may be controlled by the changes in the temperature of the battery and which can increase the charging power to quickly provide enough energy to finish a work task.

An intelligent battery optimization management and equalization system that also monitors all cells within a battery. The system will ensure all cells are charged to maximum capacity, discharges the full capacity of each cell, perform equalization of charges between all the cells, manages and monitors each cell within a battery pack.

The invention relates to the technical field of electric vehicles, in particular to an intelligent charging method and system for an electric vehicle. The intelligent charging method comprises the steps of enabling a charging pile to search for a communication signal of the electric vehicle, enabling the charging pile to receive vehicle identification information sent by the electric vehicle to perform primary authentication if the communication signal satisfies a communication condition, enabling the charging pile to control a parking space blocker to descend if the vehicle identification information received by the charging pile is in accordance with authorized vehicle identification information, enabling the charging pile to receive a charging gun insertion signal sent by the electric vehicle after the charging gun is inserted so as to perform secondary authentication, and enabling the charging pile to start a charging mode to charge the electric vehicle if the vehicle identification information of the electric vehicle included in the charging gun insertion signal is in accordance with the authorized vehicle identification information. The intelligent charging method and systemfor the electric vehicle greatly improve the user experience of charging, and reduce the operation and maintenance time and cost of an enterprise and a user to a certain extent. The charging safety ishigher.

The invention discloses a mobile terminal. A load switch and a charging chip are arranged in a charging circuit of a battery concurrently to enable the mobile terminal to support a direct charging mode and a charging chip charging mode on hardware. The selecting and switching of the two charging modes is performed by automatically controlling the load switch and the charging chip to be enabled alternately according to the voltage changes of the cell of the battery; and in addition, based on a charger with adjustable dynamic output voltage, the selecting and switching of the regulation and control priority of the charging voltage is carried out automatically between the charging chip and a processor. Due to the designed charging policy, the charging safety of the mobile terminal can be ensured; the charging speed of the battery can be accelerated; the charging efficiency can be improved; the charging temperature rise can be lowered; the trouble to a user caused by long-time charging when the mobile terminal is needed frequently can be relieved to a large extent; and the user experience is improved.

The invention relates to a charging control method, charging equipment, and a charging system. The method comprises the following steps: obtaining a voltage value of a rechargeable battery of an electronic terminal, and judging whether the voltage value is within a first preset voltage range or not: transmitting a first control signal if the voltage value is within the first preset voltage range; setting a first output voltage according to the control signal, and starting a first charging module for charging the battery; outputting the control signal through obtaining the voltage value of the rechargeable battery, and controlling the first charging module to start for charging the battery, thereby achieving the charging control according to the actual voltage condition of the rechargeable battery, and guaranteeing the high efficiency and safety of a charging process. Furthermore, the method can monitor the current output voltage and current output current of charging equipment and the input current and voltage of the electronic terminal through the communication between the charging equipment and the electronic terminal, controls the quick setting, and further improves the speed and safety of quick charging.

The embodiment of the invention provides a method for charging by utilizing a wireless charger and the wireless charger, wherein the wireless charger comprises a transmitting end and a receiving end; the transmitting end comprises a communication module, a temperature detection module, a control module, a charging module and over-temperature protection module; the communication module is used for judging whether the transmitting end communicates with the receiving end or not; the temperature detection module is used for detecting the temperature of the transmitting end after the transmitting end is communicated with the receiving end; the control module is used for judging whether the temperature of the transmitting end is higher than a preset threshold or not; the charging module is used for charging the receiving end when the temperature of the transmitting end is lower than or equal to the preset threshold; and the over-temperature protection module is used for stopping charging the receiving end when the temperature of the transmitting end is higher than the preset threshold. The embodiment of the method and the wireless charger can detect the surface temperature of the transmitting end, so that the wireless charging is enabled to be more reliable and safer.

The invention discloses a mobile charging method and device for an electric vehicle. The method comprises that a special-purpose charging lane is constructed beside a road, a high-frequency ac bus is laid under the lane, and multiple transmitting coils are connected with the ac bus in parallel to form an array; the tail end of the bus is connected with a shared adjustable resonant capacitor in series, and one or multiple transmitting coils and the shared adjustable resonant capacitor form an LC (Inductor-Capacitor) serial resonance circuit; and electric energy is transmitted via resonant coupling between the transmitting coils and a receiving coil of the electric vehicle, thereby charging a storage battery of the electric vehicle. The method and device of the invention can continuously and uninterruptedly charge the moving electric vehicle, thereby effectively lowering the requirement for the capacity of the battery, improving the endurance capability of the electric vehicle, reducing the pressure on the electrical work due to rapid charging, and being helpful for prompting large-scale applications of distributed power generation and electric vehicles.

A charging control device includes a capacitor, a comparison unit and a switching unit. The capacitor is charged with a voltage converted from power received from a wireless power sending device. The comparison unit compares the voltage of the capacitor with a reference voltage, and generates an output signal according to the result of the comparison. The switching unit is connected to the front end of the capacitor and is switched by the output signal from the comparison unit so as to control whether to supply the converted voltage to a load terminal.

The invention discloses an electric automobile regenerative brake control method based on multi-constraint conditions. Firstly, the optimal charging current of a battery is estimated according to the state of charge (SOC) of the battery, the actual charging current of the battery is made to approach the maximum charging current curve of the battery through a current control algorithm, the maximum regenerative braking force is calculated according to the maximum charging current, and the charging efficiency is improved; secondly, regenerative braking is divided into three grades according to the amplitude of braking strength, the constraint conditions of ECE regulation on moment distribution are analyzed, the regenerative braking force is allocated on the basis of the ECE regulation according to the influences of braking force strength and a ground adhesive force coefficient on an allocation strategy, braking safety is guaranteed, influences of moment allocation, the SOC of the battery, charging of the battery and other factors on the braking process are reduced, and the energy recycling efficiency is improved to a large extent.

This invention relates to battery test system, which comprises charge unit and battery, wherein, the system comprises control unit, sensor unit and the control unit is to receive battery property data from sensor unit and to send charge or stop orders to charge unit; the said control unit and sensor unit and charge unit are connected; the sensor unit is to collect battery property data.

The invention relates to a self-adaptive charge control system for electric vehicles on the basis of an SDP (SECC (supply equipment communication controller) discovery protocol) and a V2GTP-EXI (vehicle to grid communication transport protocol-efficient XML interchange) and a control method of the charge control system. The self-adaptive charge control system comprises an energy supply equipment communication controller SECC, and the SECC comprises a main controlling CPU (central processing unit), a power source module, a sampling module, a man-machine module, an in/out module, a guidance control module, and a PLC (programmable logic controller) module. The main controlling CPU is used for scheduling a charge system of an electric vehicle, processing and controlling data. The power source module is used for supplying power source for the SECC. The sampling module is used for collecting voltage and current information and uploading the same to the main controlling CPU. The man-machine module is used for interface displaying and keyboard inputting. The in/out module is used for collecting switching value and state value, uploading the same to the main controlling CPU, and executing control commands of the main controlling CPU. The guidance control module is used for monitoring state of a guidance control wire and uploading the state to the main controlling CPU. The PLC control module is used for converting network communication data between the main CPU and an EVCC (electric vehicle communication controller) into carrier data. By information interaction between the EVCC and the SECC of a plug-in electric vehicle, interaction V2G (vehicle to grid) between the electric vehicle and the power grid is realized, and self-adaptive charging of the electric vehicle is completed.