348 results about "Electric transportation" patented technology

A direct current (DC) fast charger for charging a battery of an electric vehicle (EV) includes a primary circuit having seven bidirectional switches electrically linked to a primary wire of a transformer and configured to receive an alternating current (AC) voltage; and a secondary circuit comprising a plurality of diodes arranged to rectify the AC voltage into a DC voltage, electrically linked to the secondary leads of the transformer such that the DC fast charger unidirectionally converts the AC voltage received at the primary circuit into the DC voltage output by the secondary circuit.

The invention provides a charging pile ordered charging load prediction method and system, electronic equipment and a storage medium, and belongs to the technical field of electric traffic and power load prediction.The method comprises the steps that electric vehicle operation data at different time points in a to-be-predicted area are obtained, and an electric vehicle operation database is constructed; constructing an electric vehicle user portrait classification model according to the electric vehicle operation database to form a user portrait set; according to the user portrait set in combination with the positions of the charging piles, predicting the charging behavior possibility and the charging amount of each charging pile at different time points; selecting a prediction date, judging the type of the prediction date, and performing classified fitting on a charging pile load curve; and matching the charging pile load curve with the possibility of the charging behavior of each charging pile at different time points and the charging amount, fitting the charging pile load curve into a charging pile load prediction curve of each charging pile, and performing prediction. According to the method, data dimension expansion is realized, prediction deviation is avoided, the accuracy is high, and the application range is wide.

The invention discloses a motor operation abnormity monitoring method and system for an electric tricycle, and relates to the technical field of electric vehicles, and the method comprises the steps: arranging an action instruction analysis module between a starting device and a motor, the module comprises a plurality of monitoring analysis units, and each unit corresponds to a group of action instructions; the action instruction of the electro-tricycle is acquired in real time, the corresponding monitoring unit is activated to extract the real-time action parameter, and the load state is predicted. State data of a motor and associated components are obtained through a multi-source sensing device, abnormal risk assessment is carried out by combining load state prediction and the state data, and motor operation parameters are dynamically adjusted according to an assessment result. The technical problem that in the prior art, the mutual influence between the motor and other assemblies is neglected, so that the abnormity of the motor of the electro-tricycle under the complex load change cannot be accurately predicted and monitored is solved, and the technical effects of accurate monitoring and early warning of the abnormity of the motor of the electro-tricycle are achieved.

The utility model discloses a charging plug, a charging gun and a connector assembly, and relates to the technical field of ground maintenance. The charging plug comprises a plug body, the end face of the plug body is provided with a plurality of charging terminals and a plurality of fluid interfaces, the plug body further defines a fluid channel and a fluid flowing cavity, and the fluid channel is used for being connected with a cooling source; the fluid flowing-through cavity is communicated with the fluid channel and the fluid connector, the fluid flowing-through cavity is used for allowing heat exchange fluid from a cooling source to flow through, and the fluid connector is used for being communicated with a cooling loop of external equipment; the fluid channel defined by the charging plug is used for being connected with a cooling source, and the fluid flowing cavity is communicated with the fluid channel and the fluid interface, so that the charging plug can be conveniently and quickly communicated with a cooling loop of external equipment such as an electric vehicle through the fluid interface on the charging plug. Therefore, heat management is efficiently carried out on parts to be cooled, such as the power battery pack, of the external equipment, and the heat management capability is improved.

A monitoring device according to an embodiment includes a collection part configured to collect predetermined information from each entity constituting an electric power supply and demand control service using an electric transportation device; an analysis part configured to detect occurrence of an abnormality in the entity through a predetermined analysis using the information collected using the collection part; and a handling part which performs control or notification to deal with the abnormality when the abnormality occurrence is detected.

The invention belongs to the technical field of battery material preparation, and particularly relates to a negative electrode material based on magnetic field treatment and a preparation method and application thereof. Mixing a binder, a conductive agent and an active substance to prepare slurry; wherein the active substance comprises a silicon negative electrode material, a magnetic layer coated on the surface of the silicon negative electrode material and a carbon nanotube coated on the surface of the magnetic layer; and coating a current collector with the slurry, and then drying in the presence of a magnetic field to obtain the negative electrode material. The carbon nanotubes are directionally arranged through the magnetic field and the magnetic layer, the three-dimensional connectivity of an electrode conductive network is remarkably improved, and the lithium ion transmission dynamics and the electrode structure stability can be effectively enhanced in combination with an interface modification effect brought by element doping. The lithium ion battery designed based on the negative electrode has remarkable advantages in the aspects of energy density, rate capability and cycle life, and is suitable for various mobile electronic equipment, electric vehicles and other electric devices.

The utility model provides a battery assembly which comprises a cover plate (2) and a pole (3), and the pole (3) penetrates through the cover plate (2) and is fixed with the cover plate (2) through riveting. According to the battery assembly provided by the utility model, the pole (3) and the cover plate (2) are fixed through riveting, and compared with a welding fixing mode, the fixing operation is simplified, the production efficiency is improved, and the production cost is reduced. The invention further provides a battery and an electric vehicle.

The invention addresses key challenges in electric transportation by introducing novel solutions for electric vehicles (EVs) and their batteries, Recharge time is reduced to 2-5 minutes through optimized battery design and automated charging systems. Battery performance is enhanced via thermal management using a dedicated hydrogen-based heating and cooling system. Vehicle range is extended by reserving the main battery for propulsion, while cabin climate control is handled separately using a hydrogen heater and a hydrogen-powered compressor for air conditioning. An electric vehicle integrating these features is referred to as an Efficient Electric Vehicle (EEV).

A battery self-heating control system includes a battery pack, a winding, a first switch assembly, a second switch assembly, a capacitor, and a controller. The battery pack includes a first battery group and a second battery group connected in series, a connection line led out between the first and the second battery groups, and connected to one end of the winding. The first switch assembly and the second switch assembly are connected in series, the first switch assembly is electrically connected to a positive electrode of the first battery group and a first end of the capacitor, the second switch assembly is electrically connected to a negative electrode of the second battery group and a second end of the capacitor, the first end and the second end of the capacitor connected to a load. The controller is electrically connected to the first switch assembly and the second switch assembly.

The invention provides a high mountain mining electric transportation system, which relates to the technical field of mining transportation, and comprises a chassis, a walking driving system, a recovery power generation mechanism, a bearing mechanism and a control system, a walking driving system is fixedly arranged below the chassis, a lifting bearing mechanism is fixedly arranged at the top of the chassis, a recycling power generation mechanism is fixedly arranged below the chassis and electrically connected with the walking driving system, a control system is fixedly arranged at the left end of the chassis, and the walking driving system, the recycling power generation mechanism and the lifting bearing mechanism are all electrically connected with the control system. By means of the bearing mechanism and the control system, efficient and environment-friendly transportation under complex terrains such as high mountains is achieved, the walking driving system provides power for the system, and stable running is ensured; the recovery power generation mechanism generates power by using energy in the walking process and can transport ores or heavy objects from a high position to a low position; according to the method, the influence on the environment is reduced, energy is saved, and remarkable economic benefits and social benefits are achieved.

The utility model discloses a sporadic material electric transportation hopper which comprises a hopper box, the hopper box is provided with a containing cavity with an opening in the upper end, hopper lifting lugs are arranged at the upper end of the hopper box, one side edge of the hopper box is a movable edge and can open or block the side edge of the hopper box, and a turnover side plate is arranged on the side edge of the hopper box. The overturning side plate is hinged to the bottom of the hopper and is formed by connecting a side plate inner plate and a side plate outer plate through a side plate connecting hinge, supporting profile steel is distributed on the back of the overturning side plate, limiting angle steel is arranged on the edge of the back of the overturning side plate, anti-slip strips are arranged on the surface of the overturning side plate, and when the overturning side plate is unfolded, a smooth anti-slip ramp is formed. Scattered materials are loaded through a tool car or manual work, the loading speed is increased, loading safety is guaranteed, labor cost is saved, meanwhile, loading places can be flexibly selected, and the automatic loading and unloading device has the advantages of being convenient to load and unload, good in turnover performance, flexible in application, economical, effective, free of limitation of the range of hoisting equipment and the like.

The present application relates to a switch testing circuit and testing method for high-voltage battery packs, and an electric vehicle. The switch testing circuit comprises at least two measurement circuits, and each measurement circuit is arranged between a negative electrode of a high-voltage battery pack and a load or a power supply, a negative electrode switch of the high-voltage battery pack being connected in parallel with the measurement circuit, and a positive electrode switch of the high-voltage battery pack being connected in series between a positive electrode of the high-voltage battery pack and the load or the power supply. Each measurement circuit is provided with a negative electrode switch testing point and is used for measuring the test voltage of the negative electrode switch when the high-voltage battery pack is in a power-on or power-off state and, on the basis of the test voltage, determining the state of the negative electrode switch. A positive electrode switch testing point is provided between the positive electrode of each high-voltage battery pack and the load or the power supply, and is used for measuring the test voltage of the positive electrode switch when the high-voltage battery pack is in the power-on or power-off state and, on the basis of the test voltage, determining the state of the positive electrode switch. The technical solution of the present application solves the problem in the prior art of being unable to diagnose the states of high-voltage switches of multiple battery packs.

A thermal management system for an electric vehicle includes a coolant circuit having a pump configured to circulate coolant in the coolant circuit and one or more valves. A controller is adapted to control respective positions of the one or more valves for modifying a coolant pathway in the coolant circuit. The system includes a coolant-to-refrigerant (C2R) heat exchanger fluidly connected to a coolant circuit and a refrigerant circuit. A low temperature radiator is located in the coolant circuit downstream of the C2R heat exchanger. A coolant heater is positioned in the coolant circuit downstream of the cryogenic heat sink, and a compressor is positioned in the refrigerant circuit. The controller is adapted to minimize energy usage for cabin heating in the electric vehicle by minimizing a respective load of the coolant heater, maximizing a respective load of the compressor, and maintaining a threshold suction pressure for compressor operation.

1. Name of the designed product: Electric vehicle (Xinlingdong). 2. Use of the designed product: For electric vehicles. 3. Design points of the designed product: In shape. 4. Picture or photo that best indicates the design points: Perspective view.

1. The name of the product of this design: electric tricycle. 2. Purpose of this design product: This design is used as an electric vehicle. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom view is for the parts that are difficult to see during use, so the bottom view is omitted.

A method (500) performed by an electric vehicle controller (210) in which a vehicle (100) has a plurality of battery packs (110a, 110b, 110c, 110d), each having its own heating device (230) to individually adjust the respective battery pack temperature. The method (500) includes detecting when a temperature of the battery pack (110a, 110b, 110c, 110d) falls below a specified lower threshold level. Upon detection, the heating device (230) is allowed to provide heat to a different first set (105) of battery packs while not allowed to provide heat to a separate second set (107) of battery packs. This selective heating strategy occurs when it is found that the battery temperature is below the lower threshold level. A corresponding controller (210) and an electric vehicle (100) are also described.

The invention provides a carbon neutralization path planning method and system. The method comprises the following steps: determining a first carbon emission amount of a first carbon emission scene of a target enterprise; the first carbon emission scene is a carbon emission scene without adopting a carbon reduction measure; determining a second carbon emission amount of the target enterprise in the second carbon emission scene; the second carbon emission scene is a carbon emission scene adopting a carbon reduction measure; the carbon reduction measures comprise photovoltaic, wind power, electric transportation, electric vehicle charging station and forest carbon sink; constructing a carbon emission reduction path planning model, taking the minimum total cost of the carbon emission reduction path as an objective function, and determining constraint conditions by adopting the first carbon emission, the second carbon emission and the outsourcing carbon credit; and solving the carbon emission reduction path planning model to obtain the carbon reduction optimal construction starting time, the optimal annual construction amount and the optimal annual outsourcing carbon credit. Based on the method, the invention further provides a carbon neutralization path planning system. According to the invention, enterprises are helped to carry out carbon emission reduction technology type selection and path planning according to own carbon neutralization targets.

A cooling system for an electric vehicle includes a first cooling circuit that circulates coolant to cool at least one of power electronics and a motor / generator of the vehicle. The first coolant circuit includes a heat exchanger for exchanging heat with the coolant in the first cooling circuit. A second cooling circuit is provided for circulating a coolant to cool a battery of the vehicle. The second cooling circuit includes a coolant cooler connected to a refrigeration system of the vehicle to exchange heat in the coolant received from the battery with the refrigeration system of the vehicle.

The utility model discloses ground service equipment of an electric vehicle, and relates to the technical field of ground service support. The electric vehicle ground service equipment comprises a movable carrier; the electric energy driving module is arranged on the movable carrier and used for driving the movable carrier to move; the external charging module is arranged on the movable carrier, and the external charging module is used for charging a battery pack of the electric vehicle; and the energy storage batteries are detachably arranged on the movable carrier, the energy storage batteries are electrically connected with the electric energy driving module and the external charging module respectively, and the specifications of the energy storage batteries are consistent with those of the battery pack. According to the utility model, the guarantee capability of the ground service equipment is improved, and the guarantee cost of the electric vehicle is reduced.

The present invention discloses a method and system for monitoring abnormal operation of an electric motor for an electric tricycle, relating to the technical field of electric transportation means. The method includes: by setting an action instruction analysis module between a starting device and the electric motor, the module includes a plurality of monitoring and analysis units, and each unit corresponds to a set of action instructions. By obtaining the action instructions of the electric tricycle in real time, activating the corresponding monitoring unit to extract real-time action parameters, and performing load state prediction. By using multi-source sensing devices to obtain the state data of the electric motor and associated components, combining the load state prediction and the state data to perform abnormal risk assessment, and dynamically adjusting the operation parameters of the electric motor according to the assessment results. It solves the technical problem in the prior art that the mutual influence between the electric motor and other components is ignored, resulting in the inability to accurately predict and monitor the abnormality of the electric motor of the electric tricycle under complex load changes, and achieves the technical effect of accurately monitoring and warning the abnormality of the electric motor of the electric tricycle.

The application discloses a charging plug, a charging gun and a joint assembly, and relates to the technical field of ground maintenance. The fluid channel defined by the charging plug is used for connecting a cooling source. The fluid flow cavities are respectively connected with the fluid channel and the fluid interface, so that the cooling circuit of external equipment such as an electric vehicle can be connected with the fluid interface on the charging plug conveniently and quickly, and the heat management capability is improved. In addition, the charging plug can switch the in-out liquid direction through the first and second fluid flow cavities, so that the internal temperature difference of the battery system of the corresponding external equipment can be reduced through the timing switching. Alternatively, the heat exchange fluid in the loop connection cavity can independently perform heat management through the cooling circuit of the external equipment, which is beneficial to improving the accuracy of heat management on the external equipment, improving the temperature uniformity of each position of the external equipment, and enabling the heat exchange fluid in the charging cooling cavity to independently dissipate heat for the to-be-cooled charging terminal or the charging wire harness.

1. Name of the product of this design: electric vehicle. 2. Application of this design product: electric vehicles. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom surface of this design product is difficult to see or cannot be seen during use, so the top view is omitted.

1. Name of the product subject to this design: Electric Bicycle (Baiguo). 2. Intended use of this design: This design is intended for use as an electric vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the product of this design: Electric Vehicle (II). 2. Application of this design product: electric vehicles. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom surface of this design product is difficult to see or cannot be seen during use, so the top view is omitted.

The utility model discloses a charging device, and relates to the technical field of charging. The charging equipment comprises a pile body, the pile body is provided with a pile end connector, the pile end connector is used for being connected with an electric vehicle, and the electric vehicle is provided with a battery cavity; and the heat management module is constructed to be communicated with the battery cavity to form a battery heat exchange branch under the condition that the pile end interface is connected with the electric vehicle, so that insulation heat exchange fluid in the heat management module flows in the battery heat exchange branch and is charged into the battery cavity. The charging equipment provided by the utility model provides a heat management function for the battery pack on the electric vehicle, so that the fast charging speed can be further improved.

This disclosure relates to an electric vehicle, which may include a first plate-shaped platform, a second plate-shaped platform, wheels, a motor disposed within the wheels, a power supply assembly for powering the electric vehicle, a first connecting arm assembly disposed opposite to both ends of a motor shaft, at least one sensor, and at least one controller. Each of the two opposite ends of the motor shaft is fixed to a mounting platform, and each mounting platform includes two oppositely disposed connecting arms. The first arm assembly is fixedly connected to the mounting platform to fix the first plate-shaped platform to the motor shaft, and the second arm assembly is rotatably connected to the first arm assembly to allow the second plate-shaped platform to rotate relative to the first plate-shaped platform.

The application provides a gear shift controller, a gear shift control system and an electric vehicle, and relates to the technical field of vehicles. The gear shift controller comprises a first switch unit, a second switch unit, a third switch unit and a processing unit. The first ends of the first switch unit are respectively connected to the second connection terminals of the multi-phase windings in the permanent magnet motor, and the second ends of the first switch unit are respectively connected to the fourth connection terminals of the multi-phase windings. The first ends of the second switch unit are respectively connected to the second connection terminals of the multi-phase windings, and the second ends of the second switch unit are respectively connected to the third connection terminals of the multi-phase windings. The first ends of the third switch unit are respectively connected to the first connection terminals of the multi-phase windings, and the second ends of the third switch unit are respectively connected to the third connection terminals of the multi-phase windings. The gear shift controller can be used for performing gear shift control on the multi-phase windings in the permanent magnet motor, so that the efficiency of the permanent magnet motor is optimal.

The application belongs to the technical field of battery management, and discloses a parallel battery cooperative control method and system based on a communication bus. The method adopts a decentralized architecture, each battery module periodically broadcasts its own information containing MOS state semantics through the communication bus, and receives other information; each module autonomously decides the switch of the charging and discharging MOS based on a preset rule. The core innovation includes: the MOS closed state is semantically classified into protection closed, logic closed and other types, precise cooperation is realized; a channel giving mechanism is introduced, so that the recovery process after protection is removed has no circulating current; in the discharging state, the braking signal and voltage judgment are combined to intelligently control the feedback current absorption; each module assigns an ID by broadcasting a unique code, supporting hot plug. The application completely eliminates the single-point fault of the traditional scheme, significantly improves the reliability, expandability, safety and energy efficiency of the parallel system, and is suitable for electric vehicles, energy storage devices and other fields.

1. Name of the product in this design: Electric Vehicle (Trendy and Smart Upgrade). 2. Intended use of this design: This design is intended for use as an electric vehicle. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.