96 results about "Torque regulation" patented technology

The invention relates to the technical field of motor control, and discloses a torque adjustment control method of a magnetic stirrer based on sample characteristics, which comprises the following steps: acquiring an armature three-phase current and a rotor position signal, and converting the armature three-phase current and the rotor position signal into a quadrature-axis actually measured current and a direct-axis actually measured current by utilizing coordinate transformation logic; extracting a magnetic declination estimated value reflecting the phase lag degree of the stirrer based on an electromagnetic coupling model; calculating a magnetic declination change rate according to the magnetic declination estimated value of the continuous sampling period; a transient compensation current is generated by adopting a nonlinear compensation operator and combining a real-time synchronous torque coefficient; according to the invention, the transient characteristics of the magnetic declination are utilized to realize the real-time sensing of the load disturbance, the magnetic coupling slippage caused by the sudden change of the characteristics of the sample is effectively inhibited, and the stability of the magnetic declination is improved. And the ineffective temperature rise of the motor is reduced while the system stability is guaranteed.

The embodiment of the invention relates to an electric tool. The electric tool comprises a shell; a holder for holding the tool head; the driving piece is used for outputting torque for driving the tool head to rotate; the speed reducing mechanism is used for transmitting the torque generated by the driving piece to the holding piece; the clutch mechanism is used for being in transmission connection with the speed reducing mechanism and the retainer; the torque assembly comprises an adjusting piece, an elastic piece, a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are connected to the two ends of the elastic piece, the elastic piece is located on the periphery of the box body, a speed reducing mechanism is arranged in the box body, the first fixing plate abuts against the clutch mechanism, and the second fixing plate abuts against the adjusting piece. And the preset clutch torque of the clutch mechanism is adjusted. According to the electric tool provided by the embodiment of the invention, the machine body length of the electric tool can be greatly shortened, so that the electric tool can work in a relatively narrow space; in addition, the torque adjusting range of the electric tool with the same machine body length can be increased, and the application range of the electric tool is widened.

The application relates to a compact active artificial knee joint with a torque adjusting device, which comprises a knee joint module, a receiving cavity connecting block, a lower leg connecting piece and a torque adjusting device, wherein the torque adjusting device comprises a spiral spring, a bent spring groove and the like, the knee joint module comprises a knee joint shell, a knee joint shaft center, a knee joint stator sleeve end cover and the like, one end of the spring is fixed at the upper receiving cavity connecting lug through an opening on the motor stator sleeve end cover, and the other end is fixed in the bent spring groove at the position of the motor stator sleeve end cover and the knee joint shaft center. The torque adjusting device can realize torque assistance and adjustment according to the angle size and direction of the limb rotation; meanwhile, the driving peak torque of the motor can be reduced, the size and the maximum torque of the driving motor are smaller due to the fact that the artificial limb needs to be easily worn, energy consumption and space are saved.

The application discloses a vehicle control method, a control system, a vehicle and a readable storage medium, and the method comprises the following steps: when the vehicle is in a differential steering working condition and there is a wheel slipping, determining a torque reduction torque of the slipping wheel; and adjusting the torque of the coaxial wheel according to the torque reduction torque. In the application, when the vehicle is in the differential steering working condition, the wheel slipping problem in the differential working condition is optimized by classifying the differential state of the vehicle, and different driving torque control logics are used, such as a coaxial control strategy for the slipping wheel, and a control strategy for the working condition of the inside wheel reverse slipping, so that the wheel reverse slipping can be identified in time, the use scene of the differential function is expanded, the phenomenon of high-speed wheel slipping and body posture deflection of the vehicle is avoided, and the reliability of the differential function of the vehicle is improved.

The utility model belongs to the technical field of wearable exoskeleton instruments, and particularly relates to an exoskeleton driving integrated device with a torque adjusting function, which comprises a transmission module, a critical torque adjusting module and a shell, the transmission module and the critical torque adjusting module are fixedly installed in the shell. The transmission module 1 comprises a plantar flexion driving unit and a dorsal flexion driving unit and is used for driving Bowden cables to contract and loosen; and the critical torque adjusting module is used for adjusting critical limiting torque to realize passive protection. The forward and reverse tooth double-sliding-block lead screw mechanism is adopted, one lead screw can drive the two sliding blocks moving in the reverse direction, parts are arranged in an integrated mode, the occupied space is greatly saved, the structure is more compact, and the compact space requirement of the ankle exoskeleton can be better met.

The application discloses a vehicle and an oil injection control method and device thereof. The oil injection control method comprises the following steps: obtaining the working mode of an engine; if the engine works in a normal working mode, calculating a first air-fuel ratio and combining a first control model to calculate a first main injection amount and a first post-injection amount; if the engine works in an air-fuel ratio control working mode, obtaining a preset second air-fuel ratio and combining a second control model to calculate a second main injection amount and a second post-injection amount. In the working condition with the post-injection being turned on, the difference between the main injection injection efficiency and the post-injection injection efficiency is utilized to appropriately transfer the oil amount of the main injection and the post-injection, so as to realize the torque regulation by changing the fuel amount of the main injection and the post-injection, solve the problem that the engine air system hysteresis limits the torque change range, reduce the smoke degree and improve the dynamic performance of the engine.

The application relates to the field of electric tools, and particularly discloses a torque adjusting mechanism and an electric tool, wherein the torque adjusting mechanism comprises a main body, a circuit board arranged on the main body, a potentiometer electrically connected with the circuit board, and an adjusting ring sleeved outside the main body and capable of rotating circumferentially outside the main body, wherein the triggering end of the potentiometer is sleeved with a linkage member, the outer wall surface of the linkage member is in abutment with the inner wall surface of the adjusting ring, the adjusting ring generates deformation by extruding the linkage member, the deformed linkage member and the triggering end form a rotating resistance, and the adjusting ring drives the triggering end to rotate under the torque of the rotating resistance, so as to adjust the resistance grade of the potentiometer. The application adopts the stepless adjusting mode of the potentiometer, can realize more accurate torque grading, the rotating linkage between the adjusting ring and the linkage member is realized in the mode of extrusion, the contact position of the adjusting ring and the linkage member does not need to be lubricated, and the problems of jamming and abnormal sound in the adjusting process do not exist.

This application relates to a vehicle slippage control system, method, and vehicle, belonging to the field of vehicle technology. The vehicle slippage control system includes a first wheel-end slippage control unit and a second wheel-end slippage control unit for identifying whether the vehicle is slipping. Upon detecting wheel slippage, a torque control request is sent to the power domain controller. The torque control request includes a powertrain output torque adjustment amount to suppress wheel slippage. The power domain controller, in response to the torque control request and / or wheel speed control request, determines the target drive torque and target drive speed of the drive motor in the vehicle and sends them to the electric drive assembly. The electric drive assembly, based on the target drive torque and target drive speed, controls the drive motor to suppress wheel slippage. This improves the dynamic stability and safety of the vehicle on low-traction surfaces, effectively preventing problems such as deep skidding during start-up, fishtailing, and jerking.

The invention provides a vehicle transverse stability control method and device and electronic equipment, and the method comprises the steps: calculating a yaw ratio used for representing a vehicle steering state based on vehicle driving state parameters; when it is judged that the yaw ratio meets a preset triggering condition according to a triggering threshold, it is considered that the vehicle has a transverse instability trend, and a driving torque adjusting mode is started; after the driving torque adjusting mode is started, the target slip rate of a driving wheel is determined based on the yaw rate ratio and the actual slip rate; a target torque for adjusting the driving wheel is calculated based on a deviation between the target slip rate and an actual slip rate of the driving wheel. According to the invention, based on the dynamic adjustment of the trigger threshold, the self-adaption of the intervention opportunity is controlled, the transverse instability can be prevented or inhibited in advance, the slip state of the driving wheel is adjusted through the torque, the lateral adhesion capability of the wheel is improved, the effect of preventing the lateral instability is achieved, and the active safety and the driving comfort are improved.

The application relates to the technical field of motor control, and discloses a torque adjustment control method for a magnetic stirrer based on sample characteristics, which comprises the following steps: acquiring three-phase armature currents and a rotor position signal, converting the three-phase armature currents and the rotor position signal into measured cross-axis currents and measured direct-axis currents by using a coordinate transformation logic; extracting a magnetic deflection angle estimation value reflecting the phase lag degree of a stirrer based on an electromagnetic coupling model; calculating a magnetic deflection angle change rate according to the magnetic deflection angle estimation value in a continuous sampling period; generating a transient compensation current by using a nonlinear compensation operator and combining a real-time synchronous torque coefficient; and superimposing the transient compensation current on the cross-axis current instruction to generate a compensation torque by fine-tuning the rotating angular velocity of the armature magnetic field. The application realizes real-time sensing of load disturbance by using the transient characteristics of the magnetic deflection angle, effectively suppresses magnetic force coupling slip caused by sudden changes in sample characteristics, guarantees the stability of the system, and reduces the invalid temperature rise of the motor.

This application provides a vehicle mode switching method, apparatus, system, and vehicle, belonging to the field of vehicle technology. The embodiments of this application, when the vehicle meets the mode switching conditions from pure electric rear-wheel drive mode to power-split mode, control the clutch to close, and utilize a first motor to sequentially drive the engine through the power-split mechanism and the clutch. This enables rapid engine start-up. Furthermore, by adjusting the torque of the engine and the first motor, rapid closure of the first and second synchronizers can be achieved while ensuring safe gear shifting. This effectively improves the mode switching speed while ensuring smooth switching, achieving faster power response and enhancing the user's driving experience.

The invention discloses a transmission system clearance crossing torque control system and method. The system comprises a transmission information obtaining module used for obtaining the driving end rotating speed, the load end rotating speed and transmission system characteristic parameters of a whole vehicle transmission system; the state identification module is used for calculating a transmission shaft rotation angle according to the driving end rotation speed and the load end rotation speed, and judging a gap crossing state of the current transmission system according to the transmission shaft rotation angle and a preset gap crossing angle threshold value; the torque calculation module is used for calculating friction torque, inertia torque and load torque of the transmission system according to the driving end rotating speed and the load end rotating speed of the transmission system and the characteristic parameters of the transmission system; the zero-crossing control module is used for obtaining zero-crossing torque according to the clearance crossing state of the transmission system, the friction torque, the inertia torque and the load torque, applying the zero-crossing torque to the driving end to serve as required torque, and adjusting the clearance crossing torque of the transmission system.

The utility model belongs to the technical field of torque gun processing and production, and discloses an adjustable torque gun with a torque adjusting device, which comprises a gun body, and a driving motor is arranged in the gun body; the transmission gear set is arranged in the gun body and connected with an output shaft of the driving motor; the torque adjusting device is installed on the periphery of the gun body, and the position of the torque adjusting device corresponds to the position of the transmission gear set; an adjusting tooth profile matched with the tooth profile of a main gear of the transmission gear set is formed on the inner surface of the transmission gear set; the torque adjusting device is rotated to adjust the tooth shape to drive the main gear of the transmission gear set to rotate, and the torque of the torque gun is changed. The external torque adjusting device is additionally arranged, so that the torque can be accurately adjusted without a dismounting tool.

A power tool may include a housing including a motor housing portion, a front housing portion coupled to the motor housing portion, and a handle portion extending from the motor housing portion. The power tool may include a trigger coupled to a front side of the handle portion. The power tool may include an output member extending from the front housing portion. The power tool may include a torque adjustment interface disposed between the front housing portion and the trigger, the torque adjustment interface including an actuator rotatable in a first direction to increase a torque output limit of the power tool and in a second direction opposite the first direction to decrease the torque output limit of the power tool.

The application provides a rotating shaft torque adjusting method and device, electronic equipment and a storage medium. The method comprises: acquiring a first parameter and a preset torque threshold value; the first parameter is used to represent the relationship between the torque change value and the angle of the rotating shaft; determining a first torque value of the rotating shaft; determining whether the rotating shaft needs to be adjusted based on the preset torque threshold value and the first torque value; and in response to the rotating shaft needing to be adjusted, adjusting the first torque value of the rotating shaft based on the first parameter and the preset torque threshold value. In this way, the rotating shaft torque can be intelligently adjusted, and the accuracy and efficiency of the rotating shaft torque adjustment are improved.

The utility model relates to an adjustable rotary type electromagnet structure which comprises a shell, a coil framework is installed in the shell, a coil is wound outside the coil framework, an armature is installed in the lower portion of the coil framework, a rotating shaft is arranged on the armature, a fixing ring is installed on the top of the shell, a through hole is formed in the middle of the upper end of the fixing ring, and a through hole is formed in the middle of the lower end of the fixing ring. A through hole is formed in the outer shell, a plurality of clamping protrusions are evenly arranged at the upper end of the fixing ring around the through hole, the clamping protrusions are arranged in a circular ring shape, one end of the rotating shaft sequentially penetrates through the outer shell and the through hole and is sleeved with a volute spiral spring, clamping hooks are arranged on the outer side of the volute spiral spring, and one clamping protrusion is selected for the clamping hooks to be buckled. The adjusting mechanism is simple in structure, reliable and durable through combination of the volute spiral spring and the fixing ring, wide-range torque adjustment is achieved in a compact space, energy consumption is reduced, and energy utilization efficiency is improved.

The invention discloses a fuel vehicle simulation driving method and system based on a vehicle model parameter library and a medium, and relates to the technical field of analogue simulation. The method comprises the following steps: constructing a vehicle model parameter library; collecting vehicle operation data in real time; calling a target parameter from a parameter library according to a selected vehicle model, and analyzing to generate a torque and sound control signal; and acquiring a suspension adjustment instruction and a somatosensory feedback instruction, fusing the torque adjustment signal with the sound control signal, the suspension adjustment instruction and the somatosensory feedback instruction to generate a target driving control scheme, and realizing simulated driving of the fuel vehicle through the target driving control scheme. The technical problems that existing automobile driving experience is single, and driving feelings of multiple types of fuel vehicles cannot be truly restored are solved, multiple driving experience dimensions such as power, sound, suspension and somatosensory feedback are deeply fused by constructing and calling an extensible vehicle model parameter library, and the purposes of improving the sense of reality and immersion of driving and improving the driving experience are achieved. And the user experience is optimized.

The utility model discloses a double -deck electric control paste boiling pot relates to boiling pot technical field, including installation shell and jar body, the inside installation of installation shell has stirring subassembly, and stirring subassembly includes the first motor of installation in installation shell inside, and the output of first motor is rotatably connected with first gear, and the outer wall one side of first gear is connected with second gear, and the middle part rotatable connection of second gear has first connecting rod, and one end fixed connection of first connecting rod is close to second gear has second motor, and one end rotatable connection of first connecting rod is away from second gear has third gear, in the utility model, utilize stirring subassembly to carry out the torque adjustment to three stirring rods, has guaranteed the consistency of torque in the stirring process, thereby avoided the problem that the stirring was uneven because of torque difference, realized the adaptation to the change of medicinal material characteristic in different decocting stage simultaneously.

The invention discloses an isolating switch manual transmission mechanism with a torque adjusting function. The isolating switch manual transmission mechanism comprises a switch box, a wiring port, an input shaft and a torque-adjustable transmission mechanism, the torque-adjustable transmission mechanism is arranged at the top end of the input shaft, when the torque strength of the knob needs to be enhanced, the rotary sleeve is twisted forwards to enhance the pre-tightening force of the lower friction disc and the upper friction disc, so that the rotating torque of the knob is improved, a user can customize and adjust the torque strength of the knob according to actual use conditions, the adjustability is high, the operation is flexible, and the practicability is high. The positioning holes are distributed in the top surface of the lower friction disc, so that when the knob rotates to pass through the gears of the switch box, the collision beads can be buckled with the positioning holes in the corresponding positions to provide operation feedback for a user, and the user can identify whether the knob is rotated in place or not by hand feeling without completely depending on visual confirmation; and the resistance generated by the buckling of the collision bead and the positioning hole can also prevent the knob from excessively rotating to cause misoperation.

This invention provides a control method for a mobile home connection structure with dynamic torque adjustment function, belonging to the field of structural control technology. It includes: Step 1: Initializing the control of the mobile home connection structure; Step 2: After initialization, docking the control of the mobile home connection structure; Step 3: After docking, locking the control of the mobile home connection structure; Step 4: After locking, performing steady-state monitoring of the control of the mobile home connection structure; Step 5: When disassembling the mobile home, entering the disassembly stage. This method solves the defects in existing mobile home technologies where the drive gear lacks closed-loop control and cannot dynamically adjust torque and rotation angle according to the actual stress on beams and columns; it achieves real-time monitoring of the stress state of connection nodes, ensuring optimal matching between the arc-shaped locking block and the damping groove through adaptive adjustment; and it improves the safety and durability of the connection structure.

This application provides a vehicle control method, device, storage medium, and vehicle, belonging to the field of vehicle technology. The embodiments of this application, by controlling the power source torque and accelerator pedal opening to be coupled during the period from the start of the target mode switching process to the second synchronizer shifting stage, enable the power source torque to follow accelerator pedal changes, effectively reducing the impact of the mode switching process on the overall vehicle power performance. Simultaneously, by decoupling the power source torque and accelerator pedal opening during the second synchronizer shifting stage and adjusting the power source torque, the shifting quality can be effectively improved, ensuring the smooth completion of the target mode switching process.

Systems, methods, and devices for blowout preventer independent alignment and installation of a tubing hanger within a subsea well system. A tubing hanger orientation assembly may be included with a rotary actuator that provides low torque adjustment and fine alignment of the tubing hanger with respect to other subsea equipment. At least one sensor may be included to measure and confirm an orientation of the tubing hanger for proper alignment and connection to a subsea wellhead.

This application provides a vehicle mode switching method, system, and vehicle, belonging to the field of vehicle technology. The embodiments of this application, when the vehicle meets the mode switching conditions from power split mode to pure electric four-wheel drive mode, adjust the torque of the engine and the first motor to quickly disengage the clutch and control the engine to stop. Then, by adjusting the speed of the first motor while the clutch is open, the rapid closing of the first synchronizer can be achieved while ensuring shifting safety. This effectively improves the mode switching speed while ensuring smooth switching and enhancing the user's driving experience.

The invention discloses a volume-variable initiating explosive device weighing and charging system, and relates to the technical field of initiating explosive device weighing, a high-precision servo motor is used for automatically carrying out online adjustment on the volume of a metering plate, the adjustment process is controlled, the output torque is detected, the adjustment process is safe and accurate, and the workload of workers is greatly reduced. During production, the control system automatically adjusts the volume of the metering plate online in real time according to the matching condition of the current constant-volume explosive quantity and the target explosive quantity, the explosive loading precision is high, meanwhile, the problem of continuous rejecting caused by density change due to explosive batch changing or explosive layering is solved, the production efficiency is improved, operation of workers on the metering plate and the explosive is reduced, and the labor intensity of workers is reduced. The production safety is improved. The volume of the metering plate can be adjusted with high precision within a certain range, and the metering plate is large in adjustable dose interval and can adapt to flexible production of various products.

The invention provides a track synchronous transmission mechanism self-adaptive anti-falling control method and device, and relates to the technical field of new energy automobiles, the device comprises a sensor group, a controller and an executor, displacement synchronism data and driving force balance data are collected in real time firstly, then four risk levels of normality, attention, early warning and danger are judged according to the data, and an anti-falling control result is obtained. Selecting a synchronous following mode, a damping suppression mode, an active deviation correction mode or a sudden stop protection mode according to the risk level, finally generating a differential instruction containing the speed or torque adjusting amount, outputting the differential instruction to a motor, and adjusting the running posture to prevent derailment; according to the method, predictive anti-disengaging and operation trend prejudgment active intervention are achieved, a graded gradient intervention strategy is constructed, risk grades are accurately matched, the method further has the threshold value self-optimization capacity, adapts to working condition changes, integrates a fault tolerance mechanism, can still operate in a degraded mode when a sensor fails, the defects of passive protection and a single strategy are effectively overcome, and the reliability of the system is improved. And closed-loop dynamic correction is realized.

A torque overload protection method is provided. The torque overload protection being executed by a controller of a steering assembly and includes: obtaining a steering angle and a torque command being applied to a steering assembly; generating a torque adjustment command based on a steering angle overload torque repository of the controller, the torque command, and the steering angle; and using the torque adjustment command to provide overload protection for the steering assembly while the steering angle and the torque command are being applied to the steering assembly.

The utility model discloses an electric wrench striking block capable of adjusting torque, and relates to the technical field of electric wrenches. The electric wrench comprises an electric wrench body, a grip is fixedly connected to the circumferential face of the electric wrench body, a torque adjusting knob is arranged on the side face of the electric wrench body, and a protection mechanism is arranged on the side face of the electric wrench body. When the electric wrench body needs to be used, a worker adjusts the torque knob to a proper size as required, and then presses the protective cover, so that the protective cover rotates through the control shaft and enters the positioning groove through the positioning block for positioning. When the protective cover rotates, the locking plate enables the locking column to enter the mounting block, and finally the locking column is locked in the locking plate through the elastic force of the compression spring, so that the effect of protecting the torque adjusting knob is achieved, the torque adjusting knob is effectively prevented from being accidentally touched in the working process, and the stability and safety of the wrench are ensured; and accidents are avoided.

This invention discloses a power unloading protection mechanism and an electric tool. The power unloading protection mechanism includes an active magnet assembly, a driven magnet assembly, and an adjusting component. The active magnet assembly is connected to a power input unit, and the driven magnet assembly is connected to a power output unit. The active and driven magnet assemblies are arranged opposite each other and transmit torque through magnetic coupling. The adjusting component adjusts the distance between the active and driven magnet assemblies. When the load torque of the power output unit exceeds the current magnetic coupling transmission capacity, the active and driven magnet assemblies move relative to each other, allowing the power input unit to continue operating while the power output unit stops. This achieves power unloading under overload conditions and also accommodates the adjustment of transmission capacity under different operating conditions.

The present invention provides a differential that simplifies the configuration for adjusting the initial torque of the clutch, allowing for easy adjustment of the initial torque. [Solution] The differential gear includes a clutch, a pressing member, and an elastic member housed in a case, an adjustment member screwed to the case, and a fixing member for fixing the adjustment member so that it cannot rotate relative to the non-rotating member, or for releasing the fixing. The elastic member is a member that applies preload to generate initial torque in the clutch. The adjustment member is a member that presses the elastic member and can change the preload by tightening a screw. As a result, with the adjustment member fixed by the fixing member, the case rotates integrally with the output rotating members as a pair of output rotating members rotate in the same direction at the same rotational speed. When the case rotates, the screw of the adjustment member is tightened or loosened relative to the case, thereby adjusting the initial torque of the clutch.

The utility model provides a torsion adapter suitable for a culture bottle cap, which is characterized in that a butt joint device is of a hollow cylinder structure, an internal thread is arranged inside the hollow cylinder structure, and the internal thread is matched with an external thread outside the culture bottle cap; the torque adjusting device comprises an adjusting rod, an adjusting knob arranged on the adjusting rod and a compression spring which is arranged in the adjusting rod and is in driving connection with the adjusting knob, a circular through hole is formed in one end of the adjusting rod, and a rotating ring which is coaxial with the circular through hole and can rotate relative to the circular through hole is arranged in the circular through hole; the rotating ring is in transmission connection with the compression spring through a transmission shaft; the butt joint device is detachably and coaxially installed in the rotating ring. The adapter interface is of a hexagonal standard interface structure and is arranged at the other end of the adjusting rod. The butt joint device is used for connecting the culture bottle cap, the torque adjusting device is used for adjusting torque, and the adapter interface is connected with an external part, so that the compatibility of accurate torque control and rapid replacement of the culture bottle cap is realized.