752 results about "Motor torque" patented technology

The invention discloses an embedded motor torque ripple real-time compensation system based on deep learning, and relates to the technical field of motor control and artificial intelligence crossing, the system comprises a hardware data acquisition module, a signal feature extraction module, a deep learning compensation model module, an embedded real-time compensation module and a compensation effect verification module; a motor position and a current signal are acquired in real time through the hardware data acquisition module, dynamic analysis and multi-dimensional feature construction are performed on torque ripple related features by combining the signal feature extraction module, and the deep learning compensation model module learns a fluctuation rule in historical data by using a space-time sequence model to generate a high-precision compensation current. The model adapts to an embedded environment through lightweight design, real-time deployment and dynamic optimization of a compensation algorithm are achieved, compared with traditional PID control, the scheme can adapt to changes of motor operation conditions, the influence of torque fluctuation on system stability is reduced, and the smoothness and efficiency of motor operation are improved.

A sensorless method for machine tool chatter detection. A motor torque signal is analyzed in the time domain to determine whether a bit is currently cutting workpiece material. When not cutting material, an air-cut reference signal is stored for later use. When cutting material, the motor torque signal is converted to the frequency domain and filtered in a multi-step process. After removal of the air-cut reference signal via spectral subtraction, and removal of spindle harmonic components, additional filtering is performed to address aliasing and encoder error effects. The aliasing filtering removes artificial peaks in the frequency response spectrum resulting from interaction between sampling frequency and cutting frequency. The encoder error filtering removes frequency response peaks related to encoder design and interaction with motor speed. After filtering, indicator criteria are evaluated to detect chatter, and corrective action is taken when chatter is detected.

The invention relates to the technical field of torque control, in particular to a motor torque control method, system, equipment and medium, and the method comprises the following steps: obtaining a winding temperature rise and rotating speed signal through a temperature and rotating speed sensor, calculating the resistance and flux linkage offset, and filtering to obtain a torque evaluation parameter; the acceleration and inertia reference are compared to obtain inertia disturbance, a least square method is combined to calculate a compensation coefficient, a current component is corrected to synthesize an expected torque, a torque error is calculated to judge whether the torque reaches the standard or not, and a torque control result is output and optimized. Load changes are quickly responded through filtering and inertia disturbance recognition, differential calculation is conducted on the relation between acceleration and a correction coefficient to act on a current component, torque output is stable, coefficient iterative optimization is promoted through error comparison, fluctuation is reduced, efficiency is improved, and reliable control over the motor under the complex working condition is kept.

A sensorless method for machine tool chatter detection. When the machine tool spindle is running, a spindle motor torque signal is analyzed in the time domain to determine whether a bit is currently cutting a workpiece. When not cutting, an air-cut reference signal is stored for later use. When cutting, the spindle motor torque signal, along with positioning servo motor signals, are converted to the frequency domain and filtered. Filtering steps include removal of the air-cut reference signal via spectral subtraction, removal of spindle harmonic components, removal of artificial peaks due to aliasing effects, and removal of artificial peaks due to encoder error effects. After filtering, indicator criteria are evaluated to detect chatter, including a magnitude of the filtered torque signal for servo data and a magnitude ratio of the filtered torque signal to the air-cut reference signal for spindle data. Corrective action is taken when chatter is detected.

The invention provides a control system and method for power distribution and power generation control of an extended-range agricultural machine based on intelligent identification of a working road surface and a hybrid tractor. The control system comprises the following steps: identifying a field type by collecting image information of a driving road, calculating required power of a vehicle range extender in a corresponding working scene based on the field type, and controlling a range extender assembly; and adjusting the torque of the driving motor and the driving motor based on the field type, the rotating speed of the driving motor and the vehicle speed. Based on field type recognition and historical working data, accurate distribution of driving force and efficient and stable power generation of the range extender can be achieved, the safety and the service life of a power battery are guaranteed, and the farmland operation efficiency of the tractor is improved.

The invention discloses a roller module capable of electrically adjusting hand feeling and paragraph feeling, which comprises a base and a roller mounted on the base, the roller is of a hollow annular structure and is provided with an inner ring wall, a support and a motor are further arranged on a base body, a sliding cavity is formed in the part, extending into the roller, of the support, a friction block capable of sliding along the sliding cavity is arranged in the sliding cavity, and the friction block is connected with the motor. The output end of the motor drives the friction block to abut against or move away from the inner ring wall through the transmission assembly so as to provide different rolling hand feelings. The friction block is driven by the motor to controllably abut against the inner wall of the roller, so that the damping hand feeling of the roller is adjusted; and meanwhile, in combination with cooperative control of the angle sensor and the motor torque, diversified roller shifting section feelings can be accurately simulated. According to the application, adaptive scene switching can be realized through programmed control, and highly personalized and intelligent interaction experience is provided for the user.

The invention provides a power supply regulating device and a voltage-adjustable power supply circuit thereof, and relates to the technical field of power supply regulation, the circuit is additionally provided with a sampling resistor, an operational amplifier unit and an MCU on the basis of keeping the original sampling partial voltage, and adjustable analog level output by the MCU is injected into a DC-DC feedback pin after being subjected to operational amplifier gain, so that the voltage-adjustable power supply circuit is formed. The potential of a feedback node is biased in a voltage superposition mode, so that the output voltage and the analog level are in an approximately linear relation; according to the invention, higher resolution adjustment can be obtained in a preset full range only by changing the DAC level or the PWM duty ratio, the gear intervals are uniform, digital potentiometers or segmented switching are not needed, the calculation is simple, the hardware cost is low, and the control is convenient. The high-precision power supply can be widely applied to occasions requiring a software controllable high-precision power supply, such as a thermal printing head test fixture, ink-jet head ink quantity control, motor torque adjustment and the like. The invention aims to solve the problems that the resolution of a low-voltage section is suddenly reduced and the fineness is insufficient due to resistance-voltage nonlinearity during wide-range voltage regulation of a traditional digital potentiometer type DC-DC feedback network.

A stator ring-internal gear assembly for a transmission device comprising a planetary gear of a wheel hub drive for a vehicle, the assembly may include a stator ring of an electrically operable electric motor device of the wheel hub drive for providing a motor torque and an internal gear of the transmission device for translating the provided motor torque into a net torque. The stator ring and the internal gear may be directly fixed to one another by positive connection in a non-rotatable and tension-resistant manner. The stator ring and the internal gear may form a mono-lithic unit.

The invention provides a range extender torque control method and system, a storage medium and a vehicle, and the method comprises the steps that when a power generation demand signal is received, the range extender control system is switched from an idle working condition to a power generation working condition, the power generation power is determined based on a battery pack Soc value, and a discrete rotating speed point in an efficient interval of an engine is set; checking the target torque of the generator through multiple constraint conditions; when a power generation and power take-off demand signal is received, the range extender control system is switched from a power generation working condition to a power generation and power take-off composite working condition, and the engine operates according to a preset cooperative constraint condition; and when the engine does not meet the cooperative constraint condition, the range extender control system is switched to the power take-off working condition, the generator is switched to the auxiliary driving state and outputs power in cooperation with the engine, and the torque of the generator meets the discharge torque limit of the battery pack and the generator. The application covers the whole scene of'no demand-power generation-power take-off-composite operation-fault protection ', and can flexibly adapt to the complex operation requirements of special vehicles such as loaders and the like.

The invention discloses an anti-impact compliance control method, device and system for a robot tail end and a storage medium. The force information of the robot tail end is estimated based on the position, speed and joint motor torque information of a robot; and the abrupt change torque of the end effector is compensated through the trained network system, and the anti-impact performance and the contact flexibility performance of the robot end effector are improved.

The double-motor parallel joint assembly comprises a shank joint framework, a first running motor, a second running motor, a torque superposition component and running rolling wheels, a mounting cavity is formed in the bottom of the shank joint framework, the first running motor and the second running motor are both fixed in the mounting cavity, and the first running motor and the second running motor are arranged in the mounting cavity. A rotating shaft of the first driving motor and a rotating shaft of the second driving motor are both connected with the input end of the torque superposition part, and the output end of the torque superposition part is connected with the driving rollers. The first driving motor and the second driving motor are arranged, and the torque superposition part is arranged to realize parallel operation of the first driving motor and the second driving motor, so that the output torques of the two driving motors are superposed, and the output torque of the roller is improved; the robot can overcome larger friction force and resistance when climbing, crossing obstacles or moving on the uneven ground, and the power performance of the robot is enhanced.

The invention discloses an energy-saving type aircraft tractor intelligent driving control system, and relates to the technical field of vehicle driving control, an electric control clutch is connected in series between a transfer case and a rear axle, a controller unifies mechanical capacity, thermal capacity and synchronous bandwidth as permission functions, and permissible four-wheel drive is output; the pedal change rate and the motor torque are mapped into intention intensity, the two-drive slipping critical torque is estimated, a four-drive request / two-drive keeping is generated in combination with steering consistency and task intensity, and the four-drive request / two-drive keeping is submitted only when permission is established; arbitrating by using a state machine with manual priority, setting an entry / exit threshold value and de-jittering, and executing and coding back-off according to a pre-synchronization and torque law containing heat / speed difference suppression; actual energy and a constant four-wheel drive base line are metered in a fixed window, the duty and switching are counted, the energy / heat / smoothness composite cost is constructed, and weighted write-back is carried out on threshold projection. And safe connection is achieved, impact overheating is restrained, the duty energy consumption is reduced, and parameter consistency and migration are improved.

The alternating-current synchronous motor comprises a stator shell and a rotor, the stator shell is arranged on the ground, the rotor is arranged in the stator shell through an end cover and an insulating bearing, the rotor comprises a rotating shaft and a rotor iron core, the rotor iron core is arranged on the rotating shaft, and a tooth groove set is formed in the rotor iron core in a concave mode. The tooth groove group is composed of a plurality of adjacent tooth grooves, and the windings are arranged in the tooth grooves. The motor has the advantages that the relative positions of the stator and the rotor tooth grooves are collected through the rotor position sensor, the current of the three-phase alternating current and rated torque input are collected through the current sensor, the magnitude of the current of the three-phase synchronous alternating current is controlled, the torque of the motor is controlled, and winding arrangement is optimized, so that the reliability of the motor is improved. In the working process, the magnetic potential direction of the rotor is perpendicular to the magnetic potential direction of the stator at any position, then the maximum torque under the current is output, and meanwhile, the stator permanent magnet cannot be demagnetized due to the change of the magnetic field of the rotor.

The application discloses a welding reverse deformation adaptive control method, a medium plate automatic grouping and welding method and system based on visual technology, and relates to the technical field of welding deformation control. The control method comprises the following steps: inputting material physical performance, process parameters and welding piece geometric size information into a main control system; calculating a welding piece temperature field, a stress field and a deformation field, learning and analyzing data to obtain the influence of the data on the welding piece deformation, and simulating and predicting the welding deformation; driving a servo motor by a control unit to drive a pressure head body to move, contacting a vertical plate and applying pressure according to a preset pressure, completing positioning through servo motor torque feedback, and generating a pre-deformation opposite to the predicted welding deformation; when welding, the vertical plate generates a positive deformation due to thermal stress, and the pre-deformation pressure and the thermal stress are offset; comparing the simulation prediction result of the welding deformation with the actual measurement result, and adjusting parameters according to the comparison result. The application realizes intelligent manufacturing of a turntable series product in a whole process, reduces or cancels personnel participation, and eliminates the interaction between personnel and equipment automatic operation.

The invention discloses a differential steering wheel system with linear braking and speed changing functions, which can solve the problem that a traditional steering wheel cannot give consideration to both high speed and heavy load through speed changing and torque changing, and can realize emergency braking of the steering wheel through linear braking when the steering wheel is at a high speed. The torque of a driving motor of the differential steering wheel is shunted through a speed change mechanism, a synchronous belt mechanism and a differential mechanism, and is transmitted to driving wheels on two sides through a speed reducer; when the differential steering wheel needs to steer, the steering motor actively controls steering, the driving wheels on the two sides automatically distribute rotating speed and torque through the differential mechanism, and stable steering is achieved. When a dangerous situation is encountered, the differential steering wheel achieves emergency braking through linear braking with adjustable braking force. Under the working conditions of high speed and light load, the speed of the differential steering wheel can be adjusted to a high-speed gear through the speed change mechanism, so that the speed range of the differential steering wheel is widened; under the working conditions of low speed and heavy load, the speed of the differential steering wheel can be adjusted to a low-speed gear through the speed change mechanism, so that the driving torque of the differential steering wheel is enhanced, and the traction capacity of the differential steering wheel is improved.

The invention discloses a rotating platform sliding mode control method, system and device and a medium, and relates to the technical field of motor control. According to the method, a segmented combination reaching law structure is adopted, and a sliding mode motion process is divided into three stages according to a rotating speed tracking error and a rotating speed tracking error rate. The design contradiction of a single reaching law between quick response and stable convergence is broken through, the defects of overshoot and buffeting of traditional sliding mode control are overcome, motor torque pulsation and mechanical vibration are reduced, high-precision zero-static-error tracking is achieved, a rotating platform can respond to an upper-layer instruction at a millisecond level, and task adaptability is remarkably enhanced.

The invention provides a drilling machine fault diagnosis, alarm and processing method and device.The method comprises the steps that operation data and logging data of a target drilling machine are obtained, and the operation data comprise at least one of motor torque, motor rotating speed, motor power and motor temperature; the logging data comprises at least one of bit pressure, rotating speed, pumping pressure, well depth and torque; performing timestamp alignment, data normalization, feature cleaning and missing compensation on the operation data and the logging data to construct a unified time sequence multi-modal feature set; and inputting the unified time sequence multi-modal feature set into a pre-trained large language model, performing anomaly diagnosis on the target drilling machine, and outputting an improvement suggestion. According to the scheme, the technical problem that existing drilling machine fault diagnosis is low in efficiency and accuracy is solved, and the technical effect of improving the accuracy, generalization and response speed of drilling machine fault diagnosis is achieved.

The invention discloses a roller module with electrically adjustable hand feeling and paragraph feeling, which comprises a base and a roller mounted on the base, one side of the roller is provided with a first bevel gear, the roller module further comprises a motor with an output end provided with a second bevel gear, and the motor is arranged to be capable of moving away from or close to the roller. When the motor is close to the roller, the first bevel gear is meshed with the second bevel gear, and the output torque of the motor is transmitted through the first bevel gear and the second bevel gear, so that the force required for operating the roller and the rotational degree of freedom of the roller are changed, and the hand feeling and / or paragraph feeling of the roller are / is adjusted. Through the clutch of the bevel gear and the accurate control of the torque of the motor, the electric and programmable adjustment of the hand feeling and the paragraph feeling of the roller is ingeniously realized. The whole system is compact in structure and accurate in control, provides highly flexible and personalized interactive experience for users, and is particularly suitable for application scenes such as high-end game mice and professional design mice.

This application provides a method, apparatus, device, and medium for transient torque control of a vehicle. The method includes: upon detecting that a vehicle has passed through a transmission gap region, determining a reference angle radian corresponding to the vehicle passing through the transmission gap region based on a first angle radian rotated by the motor and a second angle radian rotated by the electric drive output terminal; upon detecting that the vehicle has re-entered the transmission gap region, determining the corresponding real-time angle radian; determining a target motor angular velocity corresponding to the vehicle being in the transmission gap region based on the radian deviation value between the reference angle radian and the real-time angle radian; and determining a target motor torque based on the target motor angular velocity and the current actual motor angular velocity, and performing torque control. This application reduces the gear impact kinetic energy during drive reversal by performing closed-loop speed control on the motor torque in the transmission gap region, thereby reducing the impact of the transmission gap region on vehicle drivability during transient torque transitions.

A brushless fuel pump comprises a machine shell, a pump assembly and an upper end cover are arranged at the two ends of the machine shell, riveting rings are integrally arranged at the two ends of the machine shell, the machine shell is fixedly connected with the pump assembly and the upper end cover through the riveting rings in a pressing riveting mode, the connecting mode is simple and reliable, the structural strength is high, and the sealing performance and integrity of a pump body in the high-pressure working environment can be effectively guaranteed; a brushless motor is arranged in an inner cavity of the machine shell and comprises a support, a rotor is arranged in the support in a rotating mode, a plurality of inner stator punching sheets with winding wires are arranged on the side wall of the inner side of the support, the outer side of the support is sleeved with outer stator punching sheets, and the outer stator punching sheets are arranged on the outer side of the outer stator punching sheets. A structure that an inner stator punching sheet and an outer stator punching sheet are combined is adopted, optimization of a magnetic field and improvement of motor torque and efficiency are facilitated, the pump assembly comprises a wheel shell, an impeller connected with a rotor is arranged in the wheel shell, an oil inlet is further formed in the wheel shell, and an oil outlet communicated with an inner cavity of the support is formed in the upper end cover.

This application discloses a vehicle trunk lid control method, a vehicle trunk lid control device, an electronic device, a storage medium, and a vehicle, comprising: acquiring standard control strategy information for the vehicle trunk lid; the standard control strategy information including the torque control curve and stroke control range of the motor driving the trunk lid to open or close under standard vehicle conditions; acquiring vehicle status information; generating strategy adjustment information for the standard control strategy based on the vehicle status information; and adjusting the standard control strategy to control the motor driving the trunk lid to open or close based on the current vehicle status and the corresponding strategy adjustment information. Through the above solution, the torque of the motor driving the trunk lid is adjusted, solving the problems of insufficient motor torque when parked on a sloping road surface, the trunk lid opening too high and hitting the garage fire sprinkler head, and the difficulty in closing the trunk due to air pressure blockage during the closing process, thus making the closing process reliable.

A method for controlling a torque output of a hybrid power machine, comprising the following: during a temporary increase in torque in response to a change in the target output torque of a powertrain (200), setting a power machine output torque and a motor output torque in response to a change in the target output torque of the powertrain (200), Adjusting the motor output torque in response to a response to a speed of a drive wheel (285) of a torque converter (206), characterized by Adjusting the power machine output torque for a power machine torque error in response to the settings of a motor torque.

A method for operating an electric vehicle for traversing off-road terrain includes operating the vehicle both in a normal operating mode and an electric low range operating mode. A control unit receives inputs from sensors that determine vehicle operating conditions, such as vehicle speed, grade of terrain, accelerator position, and brake pedal position. The method adjusts motor torque or the maximum allowable motor as a function of the determined vehicle operating conditions, to provide improved electric vehicle operation in a low range mode, including the increasing motor torque at different rates relative to the normal mode, allowing a greater maximum allowable torque, increasing torque to overcome obstacles, and increasing torque to ascend or descend.

This invention discloses a collaborative energy management system for electric-driven trailers that combines road slope prediction and load adaptation. The system consists of four modules: a physical pre-aiming distance calculation and state information acquisition module extracts vehicle motion state signals and discrete road slope sequences, outputting basic data; a multi-dimensional driving scenario identification and control target dynamic reconstruction module calls the above data and equivalent estimated mass parameters of the trailer to quantify energy recovery potential and instability risk, executes multi-level progressive judgments, and issues scenario control commands; a dynamic parameter adaptive correction module, based on sensor data and the control commands, iteratively updates the aforementioned equivalent estimated mass parameters of the trailer through covariance matrix reset calculations; and a boundary constraint and multi-objective collaborative optimization module, based on received commands, dynamically reconstructs the prediction step size and anti-bend safety boundary, solves the composite cost function, and outputs the residual of the trailer's target motor torque or mechanical braking torque, ultimately completing the collaborative energy management of the entire vehicle.

The application provides a new energy electric drive system intelligent torque distribution method based on AI prediction control and related devices; the method acquires vehicle state and sensing data in real time, outputs future speed sequence of the vehicle in the prediction time domain through an environment sensing traffic sequence prediction network; outputs each wheel adhesion coefficient estimation value through a road adhesion coefficient online identification network; constructs a feedforward-feedback dual-channel model prediction controller, solves a feedforward torque distribution sequence based on the future speed sequence in a feedforward layer, and generates a feedback torque correction amount in a feedback layer based on a state deviation; dynamically generates a stability and economy weight vector according to an adhesion margin through a multi-objective dynamic weight distribution network; corrects a total optimization target with the dynamic weight and solves each motor torque instruction; and utilizes an online experience playback buffer to perform incremental online learning on the network during steady-state cruising. The application realizes forward-looking prediction, online identification, dynamic trade-off and continuous evolution, and improves the distribution performance.

Vehicle steering system comprising: an input configured to receive a signal (42) representing a target steering angle (δDES); an output configured to provide a torque output command to a steering motor based on the target steering angle (δDES); and a torque limiter module (54) configured to receive the torque output command and apply a torque limit (TDE, TMAX, TLIMIT) to it before providing it to the steering motor (24b), wherein the torque limit (TDE, TMAX, TLIMIT) is dynamically configurable based on at least one vehicle parameter, the at least one vehicle parameter being a steering input parameter applied by a driver; wherein the torque limiter module (54) is configured to maintain the motor torque value as long as a steering input parameter applied by the driver is below a first threshold, the threshold being non-zero.wherein a maximum permissible system torque (TMAX) corresponds to an upper torque threshold (TMAX_AB) as long as the steering input parameter (TFAHRER) is less than a first threshold; wherein the torque limiter module (54) is configured to limit the engine torque value to reduce the influence of the signal proportional to an increase in the steering input parameter applied by the driver when the steering input parameter applied by the driver is above the first threshold and below a second threshold that is higher than the first threshold; and wherein the torque limiter module (54) is configured to reduce the engine torque value to essentially zero when the steering input parameter applied by the driver reaches or exceeds the second threshold; wherein the target steering angle (δDES) is specified by an automated driving control device (6).

This invention relates to an electronic gear shifting device for electric motorcycles, comprising an electronic shifting unit, an electronic clutch unit, and a throttle position sensor. Based on the rider's operation, the device outputs a shift signal, a clutch signal, and a throttle opening signal. A vehicle controller receives these signals and determines a target gear for the electric motorcycle. The vehicle controller then looks up a motor torque command based on the target gear and outputs the command to a motor controller. The motor controller then controls a power motor of the electric motorcycle, enabling the electric motorcycle to simulate the power performance of a conventional geared motorcycle without the need for a physical clutch or gearbox.

The invention relates to a drive assembly (1) of a vehicle (100) which can be operated with muscle and / or motor forces, in particular of an electric bicycle, comprising: an output shaft (22) which is designed to be connected to a crank (21) of a crank drive (2); a motor (4), which is designed to generate a motor torque on the output shaft (22) in order to support a driver torque exerted by a driver, a motor shaft (42) of the motor (4) being arranged coaxially to the output shaft (22); at least one bearing (24) by means of which the driven shaft (22) is supported; at least one bearing force sensor (51, 52), in particular two bearing force sensors (51, 52), which are designed to detect the force (55, 56); and a detection unit (6) which is designed to detect a bearing force (59) on the bearing (24) on the basis of the force (55, 56) detected by the bearing force sensor (51, 52).

The embodiment of the invention provides a motor torque monitoring method and device, equipment and a medium, and relates to the technical field of vehicles. The method comprises the following steps: in a first processing unit in a motor controller, obtaining a functional layer estimation torque through an electromagnetic torque algorithm based on a three-phase current signal; in a second processing unit in the motor controller, a safety layer estimation torque is obtained through a power torque algorithm based on the bus voltage signal and the bus current signal, and the first processing unit and the second processing unit are physically isolated; and determining the state of the torque based on the comparison of the estimated torque of the motor function layer and the estimated torque of the safety layer, and executing a corresponding system protection strategy based on the torque state. According to the method, the problem that the vehicle safety is affected due to the fact that torque monitoring is prone to misalignment when equipment abnormity or working condition abnormity occurs in motor torque monitoring in the related technology is effectively solved.

The embodiment of the invention discloses a method for controlling a hybrid vehicle and electronic equipment, and relates to the technical field of vehicles, and the method comprises the steps that safety parameters are determined according to state information of the hybrid vehicle; determining fault information of the hybrid vehicle according to the state information and the safety parameters; determining a torque output result of a motor of the hybrid vehicle according to the fault information; and controlling a motor of the hybrid vehicle according to the torque output result. Thus, according to the embodiment of the invention, the motor torque of the hybrid vehicle can be monitored and controlled, the situation that the motor torque is out of control is avoided, and the running safety of the vehicle is improved.