1427 results about "Battery energy" patented technology

The present disclosure generally relates to compositions, and related devices and methods, useful in vaporizing devices such as electronic cigarettes. The composition may comprise nicotine, at least one solvent, and at least one ion pairing agent, and may be vaporized to form a condensation aerosol, wherein inhalation of the aerosol allows for deposition of nicotine with the respiratory system, including deep lung deposition. The vaporizing device may comprise a vaporization unit, a battery, and an integrated circuit coupled to the battery, wherein the integrated circuit is configured to control the battery for rapid initial vaporization without overheating, producing thermal degradation products, or draining battery energy. The battery may operate with pulse width modulation for at least a portion of the time the vaporizing device is being used.

A power efficient system architecture that exploits the characteristics of sensor networks in order to decrease the power consumption in the network. The primary characteristic of sensor networks is that the destination of all the data packets in the network is a central data collector and this central data collector, which is usually denoted as access point (AP), has unlimited transmission power and energy whereas the sensor nodes have limited battery energy and transmission power. The system uses the AP to directly synchronize and explicitly schedule the nodes' transmissions over Time Division Multiple Access (TDMA) time slots.

The invention provides an intelligent electronic cigarette which comprises a wireless communication module and a control module. The control module is respectively and electrically connected with a smoke generating module, a battery energy supplying module and the wireless communication module, and used for controlling the intelligent electronic cigarette to calculate smoking parameters, generated in the use process, of the human body, encode and decode the generated smoking parameters into smoking parameter signals meeting the wireless communication protocol, and carry out data interaction with an intelligent terminal in real time or in a timing mode through the wireless communication module. The control module comprises an encoding unit, a decoding unit and a signal output unit, wherein the encoding unit is used for encoding the smoking parameters into a smoking parameter file meeting the wireless communication protocol, the decoding unit is used for decoding the smoking parameter file into the smoking parameter signals, and the signal output unit is used for transmitting the smoking parameter signals. According to the intelligent electronic cigarette, the user use conditions can be monitored in real time, a complete use log can be created, and the smoking parameters are transmitted to the intelligent terminal in a wireless mode so that the intelligent electronic cigarette can conveniently carry out the data interaction with the intelligent terminal in real time or in the timing mode.

The invention provides a novel battery energy-storage system and a function integration designing method thereof. The system comprises an energy storage unit and an EMS (energy storage monitoring system); the energy storage unit comprises an EB (energy storage battery unit), an BMS (battery management system) and a PCS (power storage current transformer); the EB is connected with the BMS, the BMS is respectively connected with the EB and the PCS, the input end of the EMS is connected with the output end of the BMS, and the PCS and the EMS are communicated with each other. The method comprises an energy storage battery monitoring and analyzing method achieved through the BMS and the PCS and an energy-storage system monitoring and analyzing method achieved through the PCS and the EMS. In the battery energy-storage system function integration design provided by the invention, all large application occasions of electric power systems are covered, the objective is clear, and various requirements and applications are met.

A method, apparatus and computer program product are provided for providing power consumption notification and management. More particularly, application power consumption models and device battery energy levels can be used to determine a device discharge duration. A device power consumption rate can be determined from application power consumption models.

The invention discloses a method for an processing application program and a wireless handheld device, relating to the technical field of communication. The method for processing the application program comprises: obtaining startup time and operation duration of one or more application programs at an operation state when one or more application programs of an operating system background of the wireless handheld device at an operation state meet predetermined conditions; determining use probability of one or more application programs at the operation state according to statistic use probability of all programs of the operating system at one or more predetermined time intervals and the obtained startup time and operation duration of one or more application programs at the operation state; closing the application program with the use probability lower than a first predetermined threshold of one or more application programs at the operation state. The invention provides a corresponding wireless handheld device. With the adoption of the invention, waste of battery energy of the wireless handheld terminal can be reduced.

The invention relates to a regenerative braking control method of an electric car and a device thereof, which are characterized in that a throttle signal, a braking signal, the current speed of the car and the SOC (state of charge) value of a battery are acquired during the running process of the car, when the current speed of the car is larger than the preset minimum feedback speed of the car, and the throttle opening is smaller than the preset feedback threshold value or the braking signal, the feedback moment is calculated according to the current speed and the braking depth; when the SOC value of the battery is smaller than the preset upper limit, the feedback moment is output to charge the battery pack; and when the SOC value of the battery reaches the preset upper limit, an electricmachine controller controls an electric machine not to generate braking feedback charge current, and braking is carried out according to the traditional braking method. The method and the device can increase the utilization rate of battery energy, the car can be kept smooth during the travelling, the regenerative braking can be also realized, and in addition, the SOC value of the battery can be real-timely monitored, too, so the battery is prevented from being damaged when the battery is over charged downhill.

The invention discloses a coordination control and optimization method for battery energy accumulation and photovoltaic power generation based on a co-direct current bus in synchronization and independent operation modes, which supports the access of various types of storage batteries and photovoltaic battery boards through the free combination of the co-direct current bus of a DC (Direct Current)/DC converter, the automatic intelligent charge-discharge management of a storage battery branch and the maximum power tracing management of a photovoltaic battery board branch, wherein the branches are completely independently controlled to realize optimization management; the energy collected by a direct current bus is interacted with the energy of a power grid or an independent load through a post DC/AC (Alternating Current) converter; the DC/AC converter adopts a method for carrying out directional vector control on the voltage of the power grid and modulating the space vector pulse widthof the voltage in the course of the synchronization operation in an active and reactive complete decoupling control mode; and V/f control is adopted in the course of the independent operation to provide a constant voltage and frequency reference to an alternating current bus. The result of an experiment proves that the invention can realize the coordination complementary control and the autonomous optimization management of photovoltaic power storage and has the advantages of good generality, practicality and application prospects.

A driving assistant method for an electric vehicle is provided with the following steps. When the electric vehicle is started up, a battery energy safe driving region is calculated and displayed. The battery energy safe driving region is updated dynamically according to vehicle information. The vehicle information includes battery information of the electric vehicle.

The invention discloses an unmanned aerial vehicle cruising capacity monitoring system and method, and belongs to the field of unmanned aerial vehicles. The system comprises an unmanned aerial vehicle and a flight control station, a signal processing module and a data communication module. The unmanned aerial vehicle further comprises a signal input module, a flight control panel and a battery. The signal input module acquires energy consumption information of the unmanned aerial vehicle. The flight control panel acquires battery information and controls flight of the unmanned aerial vehicle. The signal processing module is suitable for calculating cruising capacity of the unmanned aerial vehicle according to the energy consumption information and the battery information. Energy consumption of the unmanned aerial vehicle is analyzed to accurately estimate cruising capacity of the unmanned aerial vehicle, and cruising capacity of the unmanned aerial vehicle is marked by cruising time and/or cruising distance. Meanwhile, influence of environment temperature on battery energy efficiency is also considered so that accuracy of prediction of cruising capacity of the unmanned aerial vehicle is further enhanced.

An HVAC control system for a passenger compartment of an over the road vehicle comprises a controllable air conditioner for directing cooled air flow through the passenger compartment and a controllable heater for directing heated air flow through the passenger compartment. A battery selectively powers the air conditioner and the heater. A sensor senses battery energy. A control panel includes user input devices for manually selecting operating parameters of the HVAC system and a battery remaining time display. A controller is operatively connected to the air conditioner, the sensor and the user control panel, the controller determining estimated battery remaining time based on battery energy and the manually selected operating parameters, and displaying the estimated battery remaining time on the battery remaining time display.

The invention relates to a non-woven fabric enhanced micropore polymer diaphragm material for a non aqueous electrolyte battery energy accumulator and method for preparation, which belongs to the manufacturing field of non aqueous electrolyte energy accumulators which are a battery and a capacitor. The non-woven fabric enhanced micropore polymer diaphragm is characterized in that the diaphragm comprises polymeric colloid emulsion which are copolymerized by 100 parts of water-soluble polymer, 30-500 parts of hydrophobic monomer, 0-200 parts of hydrophilic monomer and 1-5 parts of initiator. According to the 100 percent of the content of solids in polymer colloid emulsion, 0-100 percent of inorganic filler and 20-100 percent of plasticizer are added, obtained slurry is coated on the two surfaces of the non-woven fabric, and the non-woven fabric enhanced micropore polymer film is dried and obtained. The diaphragm has excellent heat resistance, excellent mechanical strength and low produce cost, is applied for a maintaining power, has higher safety and long cycle service life, and is friendly to the environment.

The invention relates to a graphite fiber felt surface modification method and a modified graphite fiber felt, and belongs to the all vanadium redox flow battery electrode manufacture technical field. The method step is that the electrochemical cathode modification treatment is conducted before the anode oxidation treatment. When used as an electrode, a modified graphite fiber felt greatly improves the electrochemical activity in the preparation of an all vanadium redox flow battery, promotes the voltage efficiency and the battery energy efficiency during the battery discharging, and increases the stable discharging time, so the recharging and discharging performance of the all vanadium redox flow battery is greatly improved. Moreover, the method is easy for implantation and low in the cost. No particular devices are required. The invention provides a good-performance electrode material for the battery manufacture field.

The invention discloses an electric vehicle power battery state-of-energy (SOE) estimation method, and belongs to the technical field of electric vehicle battery management systems. According to the method, changes of battery voltage are considered in the estimation process, and the battery state and the vehicle driving range can be more comprehensively reflected compared with an existing battery state-of-charge (SOC) estimation method. The electric vehicle power battery state-of-energy estimation method is characterized by comprising the following steps of (1) initialization, wherein a system calculates an initial SOE value according to the current battery temperature, voltage, the state before standing and the standing time; (2) circulation, wherein the system corrects a battery balance electromotive force (EMF)-SOE relation curve and the battery rated energy by collecting the battery temperature, charging/discharging multiplying power and the recorded battery using frequency. On the basis of the principle of conservation of energy, the battery energy variable quantity is calculated, the initial SOE value is utilized for calculating the SOE value at the next moment, and continuous circulation is carried out so that the SOE value can be updated in real time.

The invention belongs to the technical field of lithium-ion batteries, in particular to a method for supplementing lithium to a lithium-ion battery positive plate. The method includes: spraying or dropwise adding organic lithium solution onto the surface of the positive plate in the inert atmosphere to enable lithium ions in the organic lithium solution to be reduced to metallic lithium, embedding the metallic lithium into the positive plate, and drying the positive plate. Compared with the prior art, the method has the advantages that 'lithium supplement by a wet method' is achieved by spraying or dropwise adding the uniform organic lithium solution on the surface of the negative plate, so that floatation of metallic lithium powder in air is effectively avoided during lithium supplement by a dry method, production safety is guaranteed, the whole process is simple, and cost is low; and amount of supplemented lithium can be accurately controlled by the aid of the amount of the sprayed or dropwise added organic lithium solution and the spraying or dropwise adding time so as to achieve uniform lithium supplement, lithium precipitation and deformation of the negative plate are prevented, initial battery efficiency is improved, and further battery energy density is increased. Besides, the invention further discloses another method for supplementing lithium to a lithium-ion battery positive plate.

The invention relates to a method for estimating surplus mileage of a pure electric vehicle based on power consumption per kilometer, which comprises the following steps that: 1, an HCU (hybrid vehicle control unit) receives a message sent by a BCU (battery control unit) through a bus, busbar voltage U[bus], busbar current I[bus], and SOC of a battery pack are extracted from the message; 2, the HCU receives a message sent by an ABS (antilock brake system) controller through the bus, and a speed signal v is extracted from the message; 3, an available battery capacity B of the current battery pack being equal to B[Ah]*(SOC-SOC[lower limit]) is obtained according to the current available SOC, the use limitation of the SOC and the total capacity B[Ah] of the battery pack Ah; 4, an available battery energy E[available] of the battery pack being equal to U[bus]* B[available] can be calculated according to the busbar voltage U[bus] and the available battery capacity B of the current battery pack; and 5, surplus mileage S[surplus] being equal to E[available]/W[average] can be calculated according to the power consumption per kilometer W[average] and E[available]. The method automatically takes external influencing factors into consideration, so standardization processed through vast of experiments is unnecessary, and the accuracy is higher.

A battery energy balance circuit and a battery charging bypass circuit is disclosed for batteries being charged at the same time to be charged equally. When the terminal voltages of the batteries are different, a controllable power device switch in the circuit switches on and off at a high frequency in order to reduce the input current to the batteries with higher terminal voltages and to increase the input current to the batteries with lower terminal voltages, achieving the goal of equal charging. The disclosed energy balance circuit can avoid damages to the batteries as a result of overcharging. When the number of batteries increases, one can expand the system in a modularized way to prevent inconvenience of circuit designs.

The invention belongs to the field of charging technology of an electric automobile and relates to a multifunctional integrated charging machine which is used for the electric automobile and has a compensation charging function. The multifunctional integrated charging machine comprises a rectifier bridge, an inverter charging circuit, a control circuit, a contactor group, a power battery, an auxiliary battery, a brake feedback energy detection circuit, a power battery energy detection circuit and an auxiliary battery energy detection circuit; the output terminal of the rectifier bridge is connected with the inverter charging circuit which comprises a capacitance filter circuit, an IGBT inverter bridge with the duty cycle controlled by the control circuit, a high-frequency transformer and a rectifier filter circuit; different charging modes are changed by controlling the contactor group. The multifunctional integrated charging machine highly integrates four charging functions including compensation charging and the like into a charging machine, improves the integrity of the charging machine and leads the electric automobile to recover more brake energy.

The invention discloses a method for controlling a portable router to work in low power consumption mode and a portable router, which belong to the field of communication. When an application processor (AP) of the portable router meets dormant conditions, a Modem module and a wireless fidelity (WIFI) module are instructed to enter a dormant state, a universal serial bus (USB) connected with the Modem module on the side of the AP enters a free mode, a universal asynchronous receiver/transmitter (UART) of the AP is hung up, the AP and the WIFI module enter a dormant state, the AP enters the dormant state, and control of low power consumption work of the portable router with double chips of the AP and the Modem module is finished. The effect of saving battery energy is achieved, and service life of the portable router with the double chips is prolonged.

The invention relates to a microgrid energy optimization method based hybrid energy storage dispatching under different time scales. Microgrid optimized dispatching is divided into day-ahead dispatching and real-time dispatching according to different time scales; for the day-ahead dispatching, the operation plan of future 24 hours is provided one day in advance, the time granularity is 1 hour, the connecting line interaction power and the fuel cell (FC) output are optimized according to the difference between the electricity prices in the peak and valley periods, and a storage battery (SB) is dispatched to achieve low-storage high-output interest arbitrage; the real-time dispatching coordinates with the day-ahead dispatching, the microsource output is allocated according to the day-ahead plan, the time granularity is 1 minute, the power fluctuation in the microgrid is smoothened by use of a first-order low-pass filtering algorithm, the filtered fluctuating power is distributed reasonably between storage battery energy accumulation and a super capacitor by use of a moving average filtering algorithm and then reference is provided for the optimized dispatching of hybrid energy storage.

The invention discloses an intelligent drive platform for four wheels of a electric automobile, comprising four hub motors, four motor controllers, a power battery and a controller area network (CAN) communication network; further comprising an entire vehicle controller, wherein the four hub motors, the four motor controllers and the entire vehicle controller are all connected with the power battery; and the entire vehicle controller respectively controls the four motor controllers by the CAN communication network. The entire vehicle controller is located at the core of a distribution type control network, collects the information of each sub-controller and transmits the executed commands to each sub-controller for executing. The intelligent drive platform comprehensively considers the hub motor control, the entire vehicle kinetic control, the battery energy management and the instrument display based on the system and utilizes an advanced flexible control algorithm. The invention hasremarkable effects of improving the comfort performance, the maneuverability and the battery continuous driving capability of the electric automobile.

The invention discloses a composite power energy management prediction control system of a pure-electric vehicle. The system comprises a motor, a power storage battery and a super capacitor, wherein the power storage battery and the super capacitor are connected with a motor drive control device through a bidirectional DC-DC (direct current) converter respectively; the motor drive control device is connected with the motor; and the system also comprises a microprocessor control system and a vehicular navigation system, a switch pedal potentiometer, a brake pedal potentiometer, a motor detection unit, a power storage battery energy management system and a super capacitor energy management system connected with the microprocessor control system. The system disclosed by the invention can make full use of energy resources, improve energy recovery, increase the once-charge travel distance of the electric vehicle, protect the storage battery, prolong the service life of the storage battery and enhance the power performance of the whole electric vehicle.