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182 results about "Electric transportation" patented technology

Method and system for timetable optimization utilizing energy consumption factors

Systems and methods for synchronizing two or more vehicles operating on an electric transportation line to optimize energy consumption. A controller is provided having a computer memory component storing a set of computer-executable instructions, a list of braking intervals, and a list of acceleration intervals for the vehicles. The controller also has a processing component configured to execute the set of computer-executable instructions to operate on the list of braking intervals and the list of acceleration intervals to minimize an energy consumption of the electric transportation line over a determined period of time by shifting acceleration intervals to synchronize with braking intervals. A dedicated heuristic greedy algorithm and an energy model are implemented in the controller as part of the computer-executable instructions to achieve the improved energy consumption.
Owner:ALSTOM TRANSPORT TECH SAS

Electric transportation means, associated method and associated rechargeable battery

An electric transportation means, in particular an electric vehicle including: an accumulator unit including a first connection and including a second connection wherein between the first connection and the second connection a first voltage of at least 200 volts is applied when the accumulator unit is fully charged, and includes a third connection, wherein a second voltage is tapped on the third connection, said voltage being less than 20% or less than 10% or less than 5% of the first voltage, and an on-board power supply that is connected to the third connection and that can be connected via a first switch unit of the transportation means is provided.
Owner:SIEMENS AG

Power allocation method and system for electric transportation means

The invention provides a power allocation method and system for an electric transportation means. The power allocation method includes: a) acquiring an estimation parameter from a battery management system of the transportation means; b) estimating the available discharge power of a battery according to the acquired estimation parameter; c) determining the power to be allocated for each of a plurality of demand parts on the basis of the available discharge power and the power demands of the plurality of electric demand parts of the transportation means; and d) outputting the allocated power tothe electric demand parts, and converting the output power into a torque to be outputted in a case that the power needs to be converted into the torque. A power allocation system is also provided.
Owner:NIO ANHUI HLDG CO LTD

Automatic pig breeding farm waste treatment system and method

The present invention discloses an automatic pig breeding farm waste treatment system and method. The system comprises inside-pigsty feces and urine separation mechanical manure scraping equipment, outside-pigsty manure automatic transporting equipment, manure fermentation equipment and sewage purification treatment equipment. According to the large-scale pig farm automatic waste treatment technology provided by the present invention, automatic control can be realized, and working efficiency of feeders is raised; with utilization of a mechanical manure scraper, water using amount of a large-scale pig farm is saved, and sewage treatment burdens are also reduced; and an electric transportation dung-cart is used for transporting the manure to a fermentation tank, and organic fertilizers obtained after the fermentation are applied to fields, thereby reducing the using amount of chemical fertilizers.
Owner:南京绿辉牧业科技有限公司

A method and system for timetable optimization utilizing energy consumption factors

Systems and methods for synchronizing two or more vehicles operating on an electric transportation line to optimize energy consumption. A controller is provided having a computer memory component storing a set of computer-executable instructions, a list of braking intervals, and a list of acceleration intervals for the vehicles. The controller also has a processing component configured to execute the set of computer-executable instructions to operate on the list of braking intervals and the list of acceleration intervals to minimize an energy consumption of the electric transportation line over a determined period of time by shifting acceleration intervals to synchronize with braking intervals. A dedicated heuristic greedy algorithm and an energy model are implemented in the controller as part of the computer-executable instructions to achieve the improved energy consumption.
Owner:ALSTOM TRANSPORT TECH SAS

Protection device and method, and power supply system

The embodiment of the invention provides a protection device and method and a power supply system and belongs to the field of electric transportation equipment technology, wherein the protection device is applied to the power supply system. The protection device comprises a detecting and processing module and a switch module; the detecting and processing module is separately connected with power supply equipment and the switch module, and the switch module is connected with a load. The detecting and processing module detects a voltage signal in a power supply system loop, and when the voltage signal satisfying a preset condition is judged, the switch module is controlled to be in a disconnect state so as to realize the protection of the load. When the switch module is in a disconnect state, the detecting and processing module judges whether the voltage satisfies the preset condition, if not, the switch module is controlled to be in a conducting state from the disconnect state, so that the power supply system automatically returns to normal work. Then, according to the invention, protection for the load is realized without influencing the normal work of a vehicle through the automatic judgment and control of the detecting and processing module.
Owner:江苏易美新思新能源科技有限公司

Electric transportation vehicle with clamping, overturning and rotating mechanisms

The invention discloses an electric transportation vehicle with clamping, overturning rotating mechanisms. The electric transportation vehicle with clamping, overturning rotating mechanisms comprisesa vehicle body system, a clamping mechanism, a rotating mechanism and an overturning mechanism, wherein the clamping mechanism is mounted on a rotating platform, the rotating platform and a slewing bearing are mounted on an overturning rack, and the overturning rack is hinged to the vehicle body system through an overturning oil cylinder. The electric transportation vehicle with clamping, overturning rotating mechanisms can achieve functions of stable clamping, integral overturning, rotary reversing and long-distance transferring of workpieces and cargoes, is centralized in function, and is convenient to use and quite worth being popularized.
Owner:BANYITONG SCI & TECH DEVING

Electric transportation leasing system and management method thereof

The invention relates to an electric transportation leasing system and a management method thereof. The system comprises a control center, vehicle maintenance terminals, garage data terminals, maintenance center terminals, transportation terminals and vehicle dispatching terminals, wherein the vehicle maintenance terminals, the garage data terminals, the maintenance center terminals, the transportation terminals and the vehicle dispatching terminals perform communication with the control center. The management method comprises the steps that all the garage data terminals send electric transportation quantity information stored in garages where the garage data terminals are located to the control center in real time, and all the vehicle dispatching terminals send real-time location information of vehicles dispatched by the vehicle dispatching terminals to the control center in real time; the control center performs analysis to generate dispatching instructions and sends the dispatching instructions to the corresponding vehicle dispatching terminals or the corresponding vehicle maintenance terminals; the vehicle dispatching terminals or the vehicle maintenance terminals execute corresponding dispatching tasks after receiving the dispatching instructions and send dispatching completion information to the control center after delivery is completed; and the control center records the dispatching information to complete the dispatching. Through the electric transportation leasing system and the management method thereof, traffic jams can be reduced, and energy utilization efficiency can be improved. The electric transportation leasing system and the management method thereof have the advantages of environmental friendliness, convenience and fastness.
Owner:冷雨泉

Wireless speed-limiting control system and method

InactiveCN104575065AReduce accident rateAvoid a one-size-fits-all approach to controlVehicle fittingsRoad vehicles traffic controlControl systemComputer module
The invention discloses a wireless speed-limiting control system and method. Speed-limiting information is transmitted and received through a low-power-consumption wireless transmitting device and a low-power-consumption wireless receiving device, an acquisition module arranged on a transportation tool is used for acquiring acceleration information and direction information of the electric transportation tool, the running speed is calculated through a signal processing device, a speed-limiting module is used for limiting the speed of the electric transportation tool, and then the running speed of the transportation tool on a road is effectively controlled. Traffic efficiency is improved, and the probability that accidents happen to drivers and passengers is decreased.
Owner:无锡卓信信息科技股份有限公司

Electric transportation trolley for automatic glass mounting

The invention provides an electric transportation trolley for automatic glass mounting. The electric transportation trolley comprises a frame, a lift cylinder, a telescopic cylinder, a turnover cylinder and a suction disc frame, wherein one end of the frame is connected with a driving wheel; the driving wheel is connected with a steering handle; the other end of the frame is connected with two driven wheels; a balancing weight is arranged on the frame; the frame is hinged to one end of a telescopic fixed beam through a supporting rod; one end of the lift cylinder is hinged to the frame; the other end of the lift cylinder is hinged to the telescopic fixed beam; the other end of the telescopic fixed beam is connected with a telescopic arm; the telescopic cylinder and the telescopic fixed beam are coaxially arranged; one end of the telescopic arm is hinged to one end of a turnover seat; the other end of the turnover seat is hinged to a horizontal rotation seat; the horizontal rotation seat is connected with the suction disc frame; a plurality of suction discs are arranged on the suction disc frame. The electric transportation trolley for automatic glass mounting, provided by the invention, is simple to operate, does not cause personal injury, utilizes a DC hydraulic power unit and a hydraulic cylinder to realize turning-over, rotating, lifting and stretching out and drawing back of plates.
Owner:GUANGZHOU COWEST MACHINERY EQUIP CO LTD

Design and control of electric vehicle charging infrastructure

ActiveUS20210276447A1Minimize overall annualized cost of investmentWithout compromising energy requiredCharging stationsDriver interactionsElectricity infrastructureElectric vehicle
A system for configuring an Electric Vehicle (EV) charging infrastructure, the apparatus comprising. The system receives user direction and inputs regarding a custom EV charging infrastructure, submits the data an optimal planning module which is configured for performing optimization based on objectives in view of a set of constraints; and generates a recommendation from the optimal planning module for a custom EV charging infrastructure based on charging needs and behavior of the consumers toward deferring upgrades in electric infrastructure without compromising energy required for electrical transportation. The system validates the results from the optimal planning module using discrete event-based simulator and generates charging schedules from the controlling module for custom EV charging based on information about EV data, distributed energy resource (DER), and the electric infrastructure without compromising energy required for electrical transportation and causing undue impact on the electrical infrastructure.
Owner:MICROGRID LABS INC

Electric transportation cart with adjustable deck

An electric transportation cart includes a deck having two first rails located on two sides thereof a base having multiple casters connected to the underside thereof and including two second rails on two sides thereof, a first link assembly and a second link assembly pivotably connected between the deck and the base, and a handle connected to one end of the base. A first bar is slidably connected between the two first rails, and a second bar is connected between the first link assembly and the second link assembly. A hydraulic cylinder is connected between the first bar and the second bar. The travel distance of the hydraulic cylinder is longer than that of the conventional transportation carts. Users operate the control unit to activate the hydraulic cylinder to drive the first and second link assemblies to control the deck to move up and down.
Owner:LAI CHIEN HAO

Energy recovery system for extended-range electric vehicle

The present invention belongs to the technical field of energy recovery, and in particular provides an energy recovery system for an extended-range electric vehicle. The extended-range electric vehicle includes a turbine engine (100), a generator (200), a battery pack (300), a drive motor (400), wheels (500) and a control device (700); the energy recovery system includes a thermal element (600), the thermal element (600) is connected with the control device (700) and the turbine engine (100), and used for converting braking energy of the wheels (500) into thermal energy for heating intake airof the turbine engine (100). According to the invention, the braking energy of the extended-range electric vehicle is converted into heat energy by installing the thermal element, and is used for secondary heating of the gas entering a combustion chamber, thereby improving the temperature of intake air of the combustion chamber, so as to improve the power generation of the unit fuel, the enduranceof the extended-range electric vehicle is prolonged.
Owner:刘慕华

Shallow depth excavation system suitable for soft soil stratum and construction method

The invention discloses a shallow depth excavation system suitable for a soft soil stratum and a construction method. The shallow depth excavation system comprises a machine body, and a left arm, a right arm, a spraying unit and a conveying unit arranged on the machine body; the spraying unit is arranged at the middle part of the machine body; the conveying unit is arranged at the middle part of the machine body; an excavation lifting unit is arranged on the left arm; the right arm is provided with an anchor rod unit and a milling excavation unit; and each unit is modularly mounted on the left arm and the right arm of the machine body. The shallow depth excavation system further comprises an unearthing unit; a rail on the unearthing unit is arranged in a main line tunnel; a conveying belt is arranged in a transverse channel perpendicular to the main line tunnel; an electric transportation truck is arranged on the rail; and a grab is lifted in a port of a vertical shaft. The shallow depth excavation system and the construction method realize integrated mechanical environmental protection construction, improve the tunnel construction efficiency, reduce the labor intensity, improve the construction safety, and greatly improve the technological level of tunnel engineering mechanical construction.
Owner:BCEG CIVIL ENG

Automatically-charging device for motor vehicle and purpose thereof

InactiveCN101814767AReduce the number of parking and chargingEasy to driveBatteries circuit arrangementsElectric powerWind drivenElectric aircraft
The invention relates to an automatically-charging device for a motor vehicle, which is characterized in that a permanent-magnet synchronous DC motor is connected to the interior of the head or the top, carriage bottom or top outside the carriage of the traditional electric automobile, car, ship, airplane and train, one end of the rotating shaft of the motor is arranged inside or outside a casing and connected with a group of two groups of fan blades, the output circuit of the motor is connected with a rectifier diode or rectifier, and a rectifier diode output circuit is connected with a boost convertor and is electrically connected with a voltage-regulator diode, a current relay and a charger and a storage battery so as to form an automatic wind-driven motor vehicle and an automatic charging device. The invention can be used for battery trucks or electric vehicles and electric automobiles or hydrogen fuel automobiles or petrol vehicles or gas-fired automobiles and ships and airplanes or electric airplanes and trains. The invention can automatically charge during running, thereby solving the problems of being electroless in half-way or not being capable of running for a longer distance, and achieving the purposes of saving energy, increasing auxiliary power, reducing cost for running and alleviating energy crisis compared with the non-electric vehicles.
Owner:姚书银

Lithium battery cathode active material and preparation method and application thereof

The invention discloses a lithium battery cathode active material and a preparation method and application thereof. The lithium ion battery cathode material comprises lithium-containing compound particles with the chemical formula of Li1+xNi0.5-yMn1.5-zOu, x is larger than or equal to -0.2 and smaller than or equal to 0.2, y is larger than or equal to -0.2 and smaller than or equal to 0.2, z is larger than or equal to -0.2 and smaller than or equal to 0.2, and u is larger than or equal to 3.8 and smaller than or equal to 4.2. The surface of the lithium battery cathode active material providedby the invention is doped with the sulfur element in a gradient manner, so that the stability of the cathode material is effectively improved, and the preparation method has the following advantages:1) the simple and feasible process and low cost; 2) the morphology and crystal face distribution of the generated lithium nickel manganese oxide material can be regulated and controlled; and 3) the comprehensive performance of the spinel cathode active material can be improved, the development prospect is excellent, and the prepared lithium ion secondary battery can be used as an energy source applied to electric tools, electric bicycles, hybrid electric vehicles, pure electric vehicles and the like.
Owner:SONGSHAN LAKE MATERIALS LAB +1

Gas cylinder transporting trolley for power grid

The invention belongs to the field of electric power transportation, and specifically relates to a gas cylinder transportation trolley for power grid; the invention includes an L-shaped frame body, a rotary drive device, a pull wire, a clamp and a rotating plate; the rotary drive device is arranged on the vertical Straight part, the output part of the rotary drive device is connected with one end of the pull wire; the other end of the pull wire is connected with the clamp; the bottom of the frame is provided with an opening, the rotating plate is located at the opening, and the rotating plate passes through the two sides of the rotating plate. The rotating shaft is connected with the bottom of the frame body; the bottom surface of the bottom of the frame body is provided with casters; a kind of transport trolley provided by the invention can automatically stand up the gas cylinders fallen on the ground, and can put the gas cylinders on the ground while standing up the gas cylinders. The gas cylinders are directly transported onto the trolley. The invention has the advantages of ingenious structure, convenient operation, safety and reliability.
Owner:HAIBEI POWER SUPPLY COMPANY STATE GRID QINGHAI ELECTRIC POWER +1

System and method for remote monitoring of charging the battery of an electric vehicle, charger and device for use in the system and method

The present invention relates to a charger for charging the battery of an electric vehicle, comprising at least one port for exchanging electric power and / or data with a vehicle during a charge session, first data communication means, for saving information regarding the charge session to a data storage location, second data communication means, for communicating a reference for obtaining access to the data storage location comprising the information regarding said charge session to an external device.
Owner:ABB AS

Charge scheduling method and charge scheduling system for transportation vehicles

The invention discloses a charge scheduling method and a charge scheduling system for transportation vehicles. The method comprises the steps of obtaining the user data of a user terminal by a server, and obtaining the charging data of charging terminals by the server; according to the user data and the charging data, calculating the charging price of each charging terminal within a future preset time period according to a preset bidding algorithm by the server; reserving a charging time and a charging terminal by the user terminal according to the charging price; and charging an electric transportation vehicle by the charging terminal according to the charging instruction of the user terminal. According to the technical scheme of the invention, an optimal charging price is obtained based on big data. After that, the charging price is adopted to regulate and control the charging action of the electric vehicle, so that the purposes of peak-load shifting and reducing the cost are realized. Meanwhile, the operation economical efficiency and the operation stability of the electric power system are improved. The charging action of the electric vehicle is regulated and controlled through the economic means. Therefore, the adverse effects on the power grid, caused by the centralized charging of electric vehicles, can be avoided or relieved. Meanwhile, the charging cost of electric vehicle users is reduced.
Owner:SHANXI PROVINCIAL RES INST OF COMM +1

Roller-skates electric serviceable tool based on backpack power supply

The invention relates to a roller-skates electric serviceable tool based on a backpack power supply, which relates to the field of a simple and convenient electric transport tool. The roller-skates electric serviceable tool mainly consists of a backpack which is provided with a charging power supply and a motor control circuit, a pair of roller skates which is fixedly provided with a direct-current motor and a control handle capable of outputting an on-off signal and an analog signal. When the roller-skates electric serviceable tool is in use, the backpack is carried on shoulders by a user, the roller skates are put on feet, and the control handle is held by a hand. The backpack is connected with the roller skates through a power supply wire, and the control handle is connected with the backpack through a data wire; and the backpack can supply power to the motor on the roller skates so as to drive the roller skates to move forwards, and the control handle can transmit different control orders to the motor control circuit on the backpack so as to control a speed, the steering, the brake and the clutch in the traveling process. The roller-skates electric serviceable tool is small in overall space occupation, simple and high efficient to control and is suitable for the fields with dense population, busy traffic and difficulty for other serviceable tools to effectively move.
Owner:马青川

Full-mechanical self-adaptive automatic transmission with reverse gear function

The invention discloses a full-mechanical self-adaptive automatic transmission with a reverse gear function. The full-mechanical self-adaptive automatic transmission comprises a power input mechanism,a high-speed gear transmission mechanism, a low-speed gear transmission mechanism, a reverse gear transmission mechanism and a main shaft which is used for outputting power. With the above technicalschemes adopted, the actual driving working condition of a pure electric vehicle can be adaptively matched with the working condition of a motor, and therefore, the pure electric vehicle can have strong climbing and heavy load capacity, the motor is located on an efficient platform all the time, the efficiency of the motor under the climbing and heavy load condition of the vehicle is greatly improved, and the energy consumption of the motor is reduced; when the rotating speed of the main shaft is gradually increased to be the same as that of the power input mechanism, the transmission is automatically switched back to a high-speed gear, gear shifting is smooth, therefore, gear shifting and speed changing are automatically conducted along with driving resistance changes in a self-adaptationmode under the condition that a driving force is not cut off, the efficient operation interval of the motor is greatly increased; and the reverse gear transmission mechanism is additionally arranged,and therefore, the situation that a reverse gear output torque is insufficient is avoided.
Owner:SOUTHWEST UNIVERSITY

Crash test dummy allocation and transportation equipment

The invention provides crash test dummy allocation and transportation equipment, which comprises a movable mobile platform, and is characterized in that an upright column frame is vertically arranged on the mobile platform, a cantilever beam extends along a direction parallel to the mobile platform from the tail end of the upright column frame, and a liftable lifting hook is hung at the tail end of the cantilever beam. The crash test dummy allocation and transportation equipment further comprises driving standing platform provided for a worker to stand, a lifting control panel, a motor system and a driving control lever, wherein the lifting control panel and the driving control level are used for controlling the motor system, and the motor system is used for enabling the mobile platform to drive and turn and enabling the lifting hook to rise and fall. Through the crash test dummy allocation and transportation equipment, electric transportation and lifting can be performed on dummies, so that the time and labor are saved, the work efficiency is improved, and bumps for the dummies or drawing for sensor wring at the surface of the dummies can be avoided.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Multi-purpose telescopic sunshade roof electric tricycle

The invention belongs to the technical field of electric transportation vehicles, and particularly relates to a multi-purpose telescopic sunshade roof electric tricycle. The multi-purpose telescopic sunshade roof electric tricycle comprises an electric tricycle frame, a carriage and an accumulator, and is characterized in that the front end of the electric tricycle frame is provided with a detachable front bracket, wherein a bottom clamping groove in the rear end of the carriage is provided with a detachable rear bracket; a carriage front backrest rack is fixedly arranged in the middle of the electric tricycle frame; the upper end of the carriage front backrest rack is provided with a spring expansion piece; a fixed solar panel is arranged in the spring expansion piece. The tricycle has a simple structure and is convenient to use; during cargo transport, the carriage is not limited by space, and some cargos with large sizes and light weight can be transported; during passenger transport, sunshade and rainproof can be realized; the tricycle is low in manufacturing cost and is convenient for generalization and application.
Owner:SHANDONG SUBO ENERGY TECH

Electric transportation device

ActiveCN106966237AStrong collection and storage capacityGood separation effectEngineeringElectric power
The invention discloses an electric transportation device which comprises a cart body. A cart handle is arranged on the cart body. At least two front universal wheels and two rear universal wheels are arranged at the bottom of the cart body. A strengthening rod is arranged on the cart body. One end of the strengthening rod is connected with the cart body, and the other end of the strengthening rod is connected with the cart handle. Multiple vertical partition plates arranged in parallel are arranged on the cart body. One transverse shaft penetrates all the vertical partition plates, and the part between every two adjacent vertical partition plates is provided with a lower protection plate connected with the two vertical partition plates. The lower protection plates are located below the transverse shaft, and the positions where the bottom of the vertical partition plates are located are higher than the positions where the bottoms of the lower protection plates are located. A transverse cushion plate is arranged on the cart body, the vertical partition plates are located above the transverse cushion plate, and the transverse cushion plate is connected with all the vertical partition plates. The electric transportation device has the beneficial effects that cable winding and storing can be conducted effectively, multiple cables can be stored at the same time, the storing capability is high, the separation effect is good, and good moving convenience is achieved during use.
Owner:湖南雁能建设集团有限公司

Method of loading superstructure integrated precast cabin unit

ActiveCN109466689AImprove stabilityIncrease the speed of hoisting and transshipmentVessel designingEngineeringSuperstructure
The invention discloses a method of loading a superstructure integrated precast cabin unit, which includes the following steps: firstly making a special bracket, and then setting parameters of a combined platform according to needs of actual parameters; setting up the combined platform at an opening of a steel casing wall process hole, and the height of the platform is the same to the height of the opening of the process hole. By transferring the prefabricated superstructure integrated precast cabin unit to the special bracket, and then lifting the bracket to the combined platform, the integrated precast cabin unit is carried to a deck plane in the superstructure cabin structure by an electric transportation trolley and a matching trolley. By making the special bracket according to parameter standard from the size parameters of the superstructure integrated precast cabin unit, the size parameters of the electric transportation trolley and the matching trolley, the method of loading thesuperstructure integrated precast cabin unit can improve stability of the integrated precast cabin unit in hoisting and transporting without causing sloshing of the integrated precast cabin unit during the hoisting process; meanwhile, the hoisting and transporting speed of the integrated precast cabin unit can be increased.
Owner:广州黄船海洋工程有限公司

Power module and electric transportation apparatus incorporating the same

A power module includes a plurality of first semiconductor devices disposed so as to define a first layer in a substantially common plane, a plurality of second semiconductor devices disposed so as to define a second layer in a substantially same plane, and at least one metal plate electrically connected to at least two semiconductor devices selected from among the plurality of first and second semiconductor devices. The first layer and second layer are stacked such that the plurality of second semiconductor devices do not overlap the plurality of first semiconductor devices.
Owner:YAMAHA MOTOR CO LTD

Power transmission vehicle anti-skid system and subway construction transporting system

The invention provides a power transmission vehicle anti-skid system and a subway construction transporting system. The power transmission vehicle anti-skid system and the subway construction transporting system are used for working together with a transporting rail body. The power transmission vehicle anti-skid system comprises a clamping mechanism; the clamping mechanism is used for being mounted on the transporting rail body; the clamping mechanism comprises a first driving piece and a clamping piece; a first clamping part is arranged on the connecting piece; a second clamping part is arranged on the internal side of at least one section of transporting rail body; and the first driving piece is in driving connection with the clamping piece and is used for driving the clamping piece to move relative to the transporting rail body in a reciprocating manner so that the first clamping part is clamped on the second clamping part or the first clamping part is separated from the second clamping part. In the using process, a phenomenon that a transporting vehicle body cannot slide even though a braking system has a fault can be guaranteed, accidents caused by sliding can be reduced, andthe safety can be enhanced.
Owner:HEFEI UNIV OF TECH

Mechanical heavy-load self-adaptive automatic speed changing assembly

The invention discloses a mechanical heavy-load self-adaptive automatic speed changing assembly, comprising a high-speed gear transmission mechanism, a low-speed gear transmission mechanism and a mainshaft used for outputting power. By adopting such a technical scheme, the actual driving working condition and the motor working condition of a purely-electric vehicle can be matched in a self-adaptive mode, the purely-electric vehicle has high climbing capacity and heavy load capacity, a motor is located on an efficient platform all the time, the efficiency of the motor under the climbing and heavy load conditions is greatly improved, and the energy consumption of the motor is reduced; gear-shifting speed changing can be automatically carried out along with running resistance changes in a self-adaptive mode under the condition that driving force is not cut off and gear shifting smoothness is achieved, the efficient running interval of the motor is greatly increased, the motor can be usedin mountainous areas, hills and heavy load conditions, the load change of the motor or an engine is gentle, and the purely-electric vehicle runs stably and is high in safety; moreover, when the electric vehicle slides in an inertia mode, energy can be recycled and stored, and therefore, endurance mileage is increased.
Owner:SOUTHWEST UNIVERSITY

Electric pump system and method

An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The systemand method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollowshaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example.
Owner:TESLA INC
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