79results about How to "Improve power" patented technology

The utility model discloses a gearbox for an oil-electricity double-engine ship. The gearbox comprises a box body, the diesel oil input component comprises a first input shaft, a first driving gear is sleeved on the first input shaft, and the first input shaft is provided with a first transmission gear and a first clutch; the reversing shaft part comprises a reversing shaft, a second driving gear is sleeved on the reversing shaft, the reversing shaft is provided with a second transmission gear and a second clutch, and the second transmission gear is meshed with the first transmission gear; the motor input component comprises a second input shaft, the second input shaft is sleeved with a third driving gear in an empty mode, the third driving gear is meshed with a first driven gear, the second driving gear is fixedly sleeved with the first driven gear, and the second input shaft is provided with a third clutch; the output shaft component comprises an output shaft and a second driven gear, and the second driven gear is meshed with the first driving gear and the second driving gear. According to the scheme, the diesel engine or the motor is independently used for driving, intelligent switching of the diesel engine and the motor can be achieved at any speed, oil consumption is reduced, and power performance is improved.

The utility model belongs to the field of power transmission, and particularly relates to a driving system and an automobile. The driving system comprises a first input shaft, a second input shaft, an intermediate shaft, four transmission assemblies, two gear switching assemblies and a controller, the first input shaft is used for being connected with a first power source and a second power source, the second input shaft is used for being connected with a third power source, and the intermediate shaft is arranged between the first input shaft and the second input shaft; the first transmission assembly and the second transmission assembly are both connected with the first input shaft and the intermediate shaft, and the third transmission assembly and the fourth transmission assembly are both connected with the second input shaft and the intermediate shaft. The controller is used for controlling the first gear switching assembly and the second gear switching assembly to selectively transmit power to the intermediate shaft through at least one of the four transmission assemblies so as to achieve multi-gear switching. The driving system provides a wider speed ratio selection range, and different power sources can operate in respective high-efficiency areas for a long time, so that the dynamic property and the economical efficiency of the whole vehicle are improved.

This utility model relates to a highly integrated powertrain mechanism for a pure electric all-terrain vehicle, including a motor and a cooling water circulation channel. The power output end of the motor is connected to the gearbox of the all-terrain vehicle. The motor is equipped with a first housing and a second housing. The cooling water circulation channel is connected in series inside the motor, the first housing, and the second housing. The inlet and outlet ports of the cooling water circulation channel are connected to the water-cooling system of the all-terrain vehicle. The first housing houses an on-board charger and an on-board power converter, while the second housing houses a motor controller and a power distribution unit. The wiring between the motor and the first housing uses a stacked busbar and a PCB harness, and the wiring between the first and second housings also uses a stacked busbar and a PCB harness. This highly integrated powertrain mechanism for a pure electric all-terrain vehicle integrates existing pure electric all-terrain vehicles into a coordinated whole, resulting in high energy conversion efficiency and strong power performance.

This invention relates to a commercial vehicle intake system and a commercial vehicle, belonging to the field of vehicle power systems. The technical solution is as follows: A commercial vehicle intake system includes an intake duct, an oil filter, and an air filter connected sequentially along the airflow direction. A water-screening assembly is installed within the air inlet of the intake duct, comprising a water-screening plate and a water collection hopper, the bottom of which connects to the outside of the intake duct. A tower-type water-filtering assembly is installed within the air outlet of the intake duct, comprising multiple stacked blades, with a first water collection trough below the blades. A swirl assembly is installed at the air inlet of the oil filter, comprising a swirl fan, with a second water collection trough below the fan. This solution, through a three-stage water removal assembly, gradually separates moisture from the air while simultaneously improving the removal capacity of dust and other impurities, significantly reducing the moisture and dust content of the air entering the oil filter and air filter, thus ensuring the service life of the oil filter and air filter and the combustion performance of the engine.

The application discloses a kind of active corner collaborative gear shifting control method applied to double motor drive system, belong to gear shifting control technical field, method includes: issuing gear shifting instruction by automobile control unit;Torque unloading instruction is issued by transmission control unit, and torque unloading is carried out;Gear position is moved to neutral gear position;Transmission control unit sends speed synchronization instruction to drive motor controller, and driving torque is respectively applied to input shaft and output shaft, when the speed difference between input shaft and output shaft is in preset range, next step is entered;According to the real-time speed difference between input shaft and output shaft, the difference of angle, the torque of auxiliary drive motor and the position of gear shifting mechanism, gear engagement feasibility detection is carried out, whether gear engagement can be judged, if yes, next step is entered;Planning engagement sleeve displacement time curve in gear shifting mechanism;Transmission control unit tracks engagement sleeve displacement curve and carries out gear engagement;Transmission control unit sends torque recovery instruction, and torque recovery is carried out.

This invention discloses a copper-iron co-fired dual inductor, which is formed by combining a pre-formed magnetic core and two U-shaped coils. The pre-formed magnetic core is a king-shaped block with four notched slots, formed by cold pressing with powder in a single process. The two U-shaped coils are inserted and assembled parallel and spaced apart on the pre-formed magnetic core, with their bottom ends coplanar, to form an initial assembly. A secondary powder filling process using a molding die completely encapsulates the U-shaped coils, followed by high-pressure forming and high-temperature sintering to integrally encapsulate them with the pre-formed magnetic core. The ends of the two U-shaped coils are formed into four electrode pads at the bottom of the resulting package. This copper-iron co-fired dual inductor, by optimizing the pre-formed shape and combined packaging structure of the two magnetic cores and coils, achieves the integration of two inductors into a single device, effectively saving space on the PCB. It also increases the inductor charge while simultaneously reducing inductor iron losses, which is beneficial for improving the conversion efficiency of DC-DC converter circuits and promoting hardware performance development in multiple application scenarios.

The utility model belongs to the field of power transmission, and particularly relates to a driving system and an automobile. The driving system comprises a first input shaft, a second input shaft, an intermediate shaft, four transmission assemblies, two gear switching assemblies and a controller, the first input shaft is used for being connected with a first power source and a second power source, the second input shaft is used for being connected with a third power source, and the intermediate shaft is arranged between the first input shaft and the second input shaft; the first transmission assembly and the second transmission assembly are both connected with the second input shaft and the intermediate shaft, and the third transmission assembly and the fourth transmission assembly are both connected with the first input shaft and the intermediate shaft. The controller is used for controlling the first gear switching assembly and the second gear switching assembly to selectively transmit power to the intermediate shaft through at least one of the four transmission assemblies so as to achieve multi-gear switching. The driving system provides a wider speed ratio selection range, and different power sources can operate in respective high-efficiency areas for a long time, so that the dynamic property and the economical efficiency of the whole vehicle are improved.

The application relates to a double-motor automatic variable-speed electric driving system and a variable-speed transmission, belonging to the technical field of electric driving systems, which comprises a first motor, a second motor and a system output shaft for driving connection with a downstream system, the two rotor shafts of the first motor and the second motor are coaxially arranged, the rotor shaft of the first motor is arranged through the rotor of the second motor and the rotor shaft of the second motor in a relatively freely rotatable mode, and the two rotor shafts and the system output shaft are arranged in parallel; the two rotor shafts are connected with the system output shaft through a two-gear variable-speed structure. The coaxial arrangement of the rotor shafts of the two motors and the parallel arrangement of the two rotor shafts and the system output shaft reduce the volume, so that the electric driving system is compact in structure; the two-gear variable-speed structure is used for realizing two-gear variable-speed control of the downstream system, so that the transmission structure of the electric driving system is simplified.

This invention proposes an optimization method for multi-virtual power plant (VPP) electricity-carbon sharing operation considering ideal returns, comprising the following steps: Step S1, establishing a single VPP model considering electricity-carbon trading among VPPs; Step S2, calculating the bargaining power of each VPP based on ideal returns, and establishing an MVPP asymmetric Nash bargaining model based on ideal returns; Step S3, solving the MVPP asymmetric Nash bargaining model based on ideal returns in two steps using the ADMM method to obtain the optimal solution. This invention can effectively promote the sharing of electricity and carbon quotas among VPPs.

The utility model provides a hybrid power driving system and a vehicle, and relates to the technical field of hybrid power vehicles. The hybrid power driving system comprises a motor, an engine and a planet wheel mechanism, the motor is provided with a first input shaft, the engine is provided with a second input shaft, the second input shaft is connected with the planet wheel mechanism, a first gear set is arranged between the first input shaft and the second input shaft, and a second gear set is arranged between the first input shaft and the planet wheel mechanism. The first input shaft is connected with a synchronizer, and the synchronizer is configured to move between a first position and a second position. According to the hybrid power driving system provided by the embodiment of the invention, the movable synchronizer is selectively coupled with the first gear set and the second gear set, so that linkage of the engine and the motor in different working modes can be realized, and the functions of motor driving, engine driving and electric energy recycling of the motor are realized; and therefore, the power performance and the fuel economy of the system are improved.

The application discloses an assembling method of a battery swap station. The assembling method comprises the following steps: assembling two frame structures respectively, each of the frame structures forming a battery storage area, and placing the two battery storage areas at a preset interval; and connecting a top component and a bottom component to the top and the bottom of the two battery storage areas respectively, so that the preset interval between the two battery storage areas forms a middle battery swap area. The frame structure of the battery swap station is convenient to assemble and has high expandability. When expansion is needed, the battery swap station can be quickly extended and assembled along each expandable direction of the battery swap station to quickly expand the battery accommodation capacity of the battery swap station. The battery swap station has high expandability. The battery swap station is formed by assembling modules, the modules can be simultaneously and individually assembled, and the battery swap station can be quickly formed and has high construction efficiency. The modules are formed by assembling parts, the parts have relatively small sizes, and the parts can be pre-processed to have better surface treatment effects.

The utility model provides a transmission system and a vehicle. The transmission system comprises an engine which comprises an oil pan, and an oil storage cavity is formed in the oil pan; the speed reducer comprises a speed reducer shell and a first half shaft, the speed reducer shell is arranged on one side, in the first direction, of the oil pan and connected with the oil pan, the first half shaft extends in the first direction, one end of the first half shaft is located in the speed reducer shell, and the other end of the first half shaft is located in the oil pan. The first half shaft is arranged on the two opposite side walls of the oil pan in the first direction in a penetrating mode. The support assembly is arranged on the side, away from the speed reducer shell in the first direction, of the oil pan and connected with the oil pan, the support assembly is provided with a supporting hole, and the first half shaft further penetrates through the supporting hole. The integrated design of the speed reducer and the engine can be achieved, so that the installation convenience of the speed reducer is improved, and then the arrangement convenience of the transmission system on the vehicle is improved.

The present disclosure relates to a hybrid vehicle drive motor control method, device, medium and hybrid vehicle to solve the problem of large torque output fluctuation of the drive motor of the hybrid vehicle. It comprises the following steps: determining a target intervention torque from the received intervention torque; determining a motor response intervention torque of the drive motor according to the target intervention torque and the current motor torque of the drive motor; in response to the received control instruction, determining an initial motor torque demand of the drive motor according to the control state of the hybrid vehicle and the whole vehicle demand torque; determining the motor torque demand according to the motor response intervention torque and the initial motor torque demand, and controlling the drive motor to operate with the motor torque demand as the target motor torque. The output fluctuation of the drive motor torque is reduced.

This invention relates to the field of vehicle control technology, specifically to a method and system for adaptive gain values ​​in a dual-clutch automatic transmission. The method includes initializing the adaptive gain value of the dual-clutch automatic transmission to obtain an adaptive gain value matrix; determining whether the vehicle meets the conditions for adaptation, and initiating adaptive learning if so; calculating the difference between the clutch input torque and the clutch output torque; updating the adaptive gain value matrix based on the difference; performing linear regression calculations to obtain linear regression coefficients; and calculating the real-time clutch gain value based on the linear regression coefficients. This method can perform real-time verification and adaptation of the clutch gain value without disrupting the vehicle's operating state during normal operation.

A CVT speed ratio optimization control method and system includes the following steps: Step 1) Using the current speed ratio of the vehicle as a benchmark, calculate the corresponding comprehensive efficiency based on the speed ratio under different search directions, compare the comprehensive efficiency under different search directions, and determine the optimal search direction; Step 2) In the optimal search direction, continue to adjust the current speed ratio according to different search step sizes, and calculate the corresponding comprehensive efficiency value respectively. The speed ratio corresponding to the maximum comprehensive efficiency value is the target optimized speed ratio; Step 3) Determine whether using the target optimized speed ratio affects the vehicle's backup driving force. If it does not affect it, control the current CVT speed ratio to become the target optimized speed ratio; if it does affect it, do not optimize the current speed ratio. This invention can improve the overall efficiency of the vehicle without complex offline calibration, improving energy economy while ensuring the user's driving experience.

The application belongs to the technical field of vehicles, and particularly relates to a driving system and a vehicle. The driving system comprises an engine and a differential, and further comprises a first motor, a second motor, a first clutch, a second clutch, an input gear and an intermediate shaft transmission assembly connected with the differential. The engine is connected with the first clutch. The first clutch and the second clutch are coaxially arranged, and share the same outer hub. The second clutch is connected with the intermediate shaft transmission assembly through the input gear. The first motor is connected with the second clutch. The second motor is connected with the differential through the intermediate shaft transmission assembly. The driving system has good power and economy, and has high overall integration and compact structure.

The application provides a control method, a control device and an electronic device of a vehicle. The method comprises: obtaining an average vehicle speed of the vehicle in a time period from a first predetermined historical time to a current time, the first predetermined historical time being before the current time; in a case where the average vehicle speed is less than or equal to a first predetermined vehicle speed, controlling the vehicle to keep the output torque of the current time unchanged; in a case where the average vehicle speed is greater than the first predetermined vehicle speed, controlling the output torque to keep unchanged or decrease at least according to an accelerator opening degree of the vehicle at the current time and an acceleration of the vehicle in a time period from a second predetermined historical time to the current time, the second predetermined historical time being between the first predetermined historical time and the current time. The application solves the problem that the vehicle in the prior art is difficult to balance the power performance and the economy under various operating conditions.

The invention provides a multidirectional joint module for a robot, which relates to a robot joint and comprises a first rotating assembly, a second rotating assembly, a third rotating assembly and a fourth rotating assembly, the second rotating assembly is arranged on the first rotating assembly and rotates with a second axial direction as the axis, the first axial direction is orthogonal to the second axial direction, the second rotating assembly comprises a second rotating shaft, a first lateral gear is fixed to the second rotating shaft, and a second lateral gear is fixed to the second rotating shaft. The first lateral gear is meshed with teeth of the end face gear; the output unit is fixedly connected with the second rotating shaft and rotates with the second axial direction as the axis, and the output unit can rotate in multiple directions in the plane perpendicular to the first axial direction through the compound motion of the first rotating assembly and the second rotating assembly. Due to the fact that the second rotating assembly and the supporting assembly are arranged in a central symmetry mode, the dynamic performance and the uniform loading capacity are remarkably improved, and high integration and the space utilization rate are achieved.

This utility model belongs to the technical field of oil presses, and specifically relates to a multi-stage pressing structure that is easy to disassemble. It includes several unit pressings that are detachably connected in sequence. Each unit pressing has a variable-diameter bushing detachably connected to its end. The inner diameter of the variable-diameter bushing is smaller than the inner diameter of the corresponding unit pressing at that point. This utility model provides a multi-stage pressing structure that is easy to disassemble. Compared with traditional multi-stage pressing structures, it can achieve true multi-stage pressing, effectively improving oil pressing efficiency, saving labor and electricity, increasing output per unit time, and saving costs to a certain extent. Furthermore, the detachable connection between the unit pressings, combined with the detachable connection of the variable-diameter bushing, facilitates the disassembly of the pressing units, especially the pressing shaft, making it very convenient.

The utility model relates to the technical field of battery packs, and discloses a battery pack which comprises a box body frame, a battery module, a battery control system, a liquid cooling bottom plate, a liquid cooling top plate and a box cover, the battery module and the battery control system are both arranged in the box body frame, the battery control system is electrically connected with the battery module, the liquid cooling bottom plate is connected to the bottom of the box body frame and exchanges heat with the bottom surface of the battery module, and the liquid cooling top plate is fixedly connected with the box body frame and exchanges heat with the top surface of the battery module. The box cover is connected to the top of the box body frame and covers the liquid cooling top plate; the box body frame comprises an outer frame and a reinforcing convex beam arranged on the inner wall of the outer frame in a protruding mode, the outer side face of the battery module abuts against the reinforcing convex beam, and a mica plate is fixed to the inner surface, facing the liquid cooling top plate, of the box cover; according to the battery pack, the technical problem of how to enable the battery pack to have relatively high energy density and relatively high safety under the limited boundary dimension is mainly solved.

The embodiment of the invention discloses a document segmentation method and device, computer equipment and a storage medium. In response to a segmentation instruction, the embodiment of the invention provides a transformer oil chromatography dynamic threshold visual analysis method and device, equipment and a medium. A plurality of oil-immersed transformers are arranged in a power system, and the method comprises the following steps: acquiring oil chromatography data, operation condition data and historical data monitored on line, and establishing a dynamic health threshold baseline for evaluating the state of equipment based on the historical data; and generating a corresponding early warning signal and performing fault early warning based on the deviation distance, the deviation direction and the deviation mode of the deviation dynamic health threshold baseline determined by the oil chromatographic data and the operation condition. According to the method, different from static analysis of dissolved gas in oil based on a static threshold value, oil chromatographic data and a dynamic self-adaptive mechanism oriented to operation condition data are fully mined, long-term slowly-changing gas abnormity identification is realized, and the fault early warning precision of a power system is improved.

The invention provides a hybrid electric vehicle mode switching dynamic compensation system and a control method, and relates to the field of automobile dynamic control. Comprising a mode switching classification module, a clutch torque estimation module, a torque compensation module and a torque slope limiting module. The mode switching classification module is used for switching working modes into clutch participation and clutch-free participation; the clutch torque estimation module is used for estimating the torque transmitted by the clutch in the mode switching process; the torque compensation module is used for taking the estimated clutch torque as a feedforward quantity compensation target motor torque; the torque slope limiting module is used for limiting the change gradient of the motor torque and reducing the impact degree. According to the method, the motor torque is compensated in real time by estimating the clutch torque, the upper limit and the lower limit of each step length change of the motor torque are limited according to the relation between the impact degree and the motor torque slope, and therefore the dynamic property and the smoothness of the hybrid electric vehicle during working mode switching are improved.

The invention discloses a battery self-heating circuit and a control method, and relates to the technical field of battery self-heating, the battery self-heating circuit is composed of a heating circuit, a charging control circuit, a current detection circuit and a charger, the charging control circuit comprises a first charging control circuit and a second charging control circuit, and the battery pack can be charged by the charger through the first charging control circuit or the second charging control circuit while the battery pack is subjected to alternating current self-heating by utilizing the heating circuit; the battery pack can be charged while being heated, and heat can be dissipated to assist in heating during charging, so that the heating efficiency of the battery pack at a low temperature is effectively improved, and the charging time of the battery is shortened.

The invention provides a vehicle battery internal resistance health degree estimation method and device, a controller and a vehicle. The method comprises the following steps: acquiring a plurality of impedance spectrums and a plurality of pulse test data of a battery of a vehicle; acquiring a first internal resistance of the battery at a preset reference temperature and a reference SOC according to the plurality of impedance spectrums; acquiring a second internal resistance of the battery under the reference temperature and the reference SOC according to the multiple pulse test data; and calculating the internal resistance health degree of the battery according to the first internal resistance and the second internal resistance. The method is used for achieving the effects of accurately estimating the internal resistance of the battery, improving the health degree estimation accuracy of the internal resistance of the battery and further optimizing the multi-aspect performance of the vehicle.

A hybrid power supply system of diesel multiple unit is disclosed. When a train is running, an energy management module sends a level signal of a master controller of the train to an inverter, and the inverter, according to the received level signal of the master controller and the dynamic performance of the hybrid power supply system, sets an envelope curve of train speed vs. traction force and an envelope curve of train speed vs. regenerative braking force to control a traction motor to output the corresponding torque. Further, the inverter, according to the voltage and current values acquired at the input end, calculates and sends a current actual demanded power to the energy management module, the energy management module, according to the current available power of a supercapacitor, calculates a required output power and sends a command of the required output power to a rectifier, and the rectifier, according to the command of the energy management module, controls the internal electric power pack to output corresponding power. The system is simple in structure and reliable in control, and can increase the dynamic performance of the train and improve the transportation capability of the train. A hybrid power supply method for a diesel multiple unit is also disclosed.

The multifunctional unmanned rescue boat comprises a boat body, an equipment platform is arranged on the boat body, a first equipment area, a second equipment area, a third equipment area and a fourth equipment area are sequentially arranged on the equipment platform in the length direction of the equipment platform, carrying equipment is placed in the first equipment area, and a life buoy and an unmanned aerial vehicle are placed in the second equipment area. A monitoring device is placed in the third equipment area, and a driving device is placed in the fourth equipment area; the equipment platform is further provided with a plurality of mechanical arms, and the mechanical arms are arranged on the boat head and the two sides of the boat body. The rescue boat is complete in equipment and can be remotely controlled through the unmanned aerial vehicle and the unmanned underwater vehicle of the equipment platform, and water and underwater targets can be conveniently searched; the three-side carrying capacity of the boat is improved through the three mechanical arms, and the conveying and rescue efficiency of the boat is improved; the tail water-jet propeller has good dynamic property, speed reduction is achieved by adjusting the direction of a nozzle, and when the boat is decelerated and drives to a person falling into water, the risk that the person is twisted is reduced.

The application discloses a battery device and an electric device. The battery device comprises a box body and a battery cell assembly. The box body defines a containing cavity and comprises a side beam. The side beam comprises a side beam body and a mounting portion protruding towards the containing cavity. The mounting portion cooperates with the side beam body to define an avoiding space on the lower side of the mounting portion. The battery cell assembly is arranged in the containing cavity. In the up-down direction, at least part of the battery cell assembly is below the mounting portion. According to the battery device, the mounting portion cooperates with the side beam body to define the avoiding space on the lower side of the mounting portion. At least part of the battery cell assembly is below the mounting portion. When the battery device is subjected to a side impact, the side beam can deform towards the avoiding space, reducing the probability of the side beam impacting the battery cell assembly, thereby improving the safety of the battery device. Part of the battery cell assembly can extend into the avoiding space, increasing the electric space of the battery cell assembly and the electric quantity of the battery device.

The present application relates to a kind of electromagnetic underwater acoustic transducers, including shell, it is arranged in liquid-filled pipeline;Displacement amplifier module is arranged in shell, displacement amplifier module includes drive panel, oil cylinder and radiation panel, radiation panel is retractably arranged below oil cylinder, radiation panel side and liquid in liquid-filled pipeline contact, drive panel is retractably arranged above oil cylinder;Water pressure balancer module is arranged above drive panel;Electromagnetic actuator module is arranged in shell and is outside water pressure balancer module.The present application passes through water pressure balancer module and transmits the hydraulic pressure outside shell to drive panel, so that the drive panel and radiation panel on both sides of oil cylinder keep hydraulic balance, in through electromagnetic actuator module drive keep hydraulic balance after the drive panel and radiation panel movement, make radiation panel emit amplitude opposite, phase same acoustic wave to offset noise, so that transducer can eliminate sound in the pipeline of greater pressure.

This invention relates to a commercial vehicle air intake assembly and a commercial vehicle, belonging to the field of vehicle power systems. The technical solution is as follows: a commercial vehicle air intake assembly includes an air intake body, within which a water screening component, a water filtering component, and a vortex component are provided. The water screening component includes a water screening plate and a water collecting hopper, the bottom of which connects to the outside of the air intake body. The water filtering component includes multiple stacked blades, with a first water collecting groove below the blades, which connects to the outside of the air intake body. The vortex component is located below the water filtering component, and a second water collecting groove is also provided below the vortex component, connected to the outside of the air intake body through the first water collecting groove. This solution, through a three-stage water removal assembly, gradually separates moisture from the air while simultaneously improving the removal capacity of dust and other impurities, significantly reducing the moisture and dust content of the air entering the oil filter and air filter, thus ensuring the service life of the oil filter and air filter and the combustion performance of the engine.