59results about "Software algorithm control" patented technology

The invention discloses an electric vehicle permanent magnet motor control method and system based on temperature rise prediction, and belongs to the field of motor control. The method comprises the following steps: generating motor temperature rise sample data based on a meshless method; a chaotic mapping-dream optimization algorithm is adopted to optimize multivariate variational mode decomposition parameters, and high-precision temperature rise data are reconstructed; a GNN-BILSTM-Attention prediction model is constructed, and a space-time double Attention mechanism is fused to predict a future temperature rise; and establishing a temperature rise-electromagnetic parameter mapping model, designing a graded early warning control strategy, and forming a prediction-control closed loop. According to the invention, the speed and precision of temperature rise prediction are improved, prediction-control deep coupling is realized, and the operation reliability and control precision of the motor are significantly enhanced.

The invention relates to the field of motor control and adjustment, in particular to a motor rotating speed adjusting method and system for a remote control driving vehicle, and the method comprises the steps: obtaining and preprocessing vertical, transverse and longitudinal vibration signals and running speed data of each wheel of the vehicle; extracting a vibration anomaly feature sequence and an average vehicle speed sequence through a sliding window method, and analyzing correlation to quantify road condition features; quantizing the wheel cooperative stability based on the wheel vibration correlation and the transverse / vertical energy ratio difference degree, and fusing the maximum road condition feature value and the stability mean value to obtain a rotating speed adjustment factor; the actual target rotating speed of the motor is calculated by combining the preset vehicle speed, the transmission ratio and the like, and precise vehicle speed adjustment is achieved through PID closed-loop control. According to the method, the rotating speed adjusting factor is constructed by quantifying the three-dimensional road condition characteristics and the vehicle dynamic stability, real-time adaptive adjustment of the vehicle speed is achieved in combination with PID closed-loop control, and the safety and stability of remote control driving are remarkably improved.

Electrical apparatus (20) includes an inverter (24) having input terminals for receiving DC input power and output terminals for coupling to an AC power grid. A pulse-width modulation (PWM) generator and drivers (26) drive the switches so as to control respective amplitudes, frequencies, and phases of the output current waveforms of the inverter. Control circuitry (28) receives measurements of respective time-varying voltages and currents on the input and output terminals, computes a model (40) that includes three virtual currents flowing in a synchronous machine that is emulated by the apparatus, wherein the three virtual currents are associated respectively with the three output current waveforms, and controls the PWM generator and drivers responsively to the three virtual currents so as to synchronize the amplitudes, frequencies, and phases of the three output current waveforms of the inverter with the three phases of the AC power grid.

A hydraulic system for a vehicle is provided. The hydraulic system includes a first electric motor, a second electric motor, a gearbox arranged to be driven by the first and second electric motors, a hydraulic pump arranged to be driven by the gearbox, and a control arrangement configured to individually control the first and second electric motors to either run at a reference speed or to deliver a reference torque and during operation control at least one of the first and second electric motors to deliver a reference torque.

The application discloses a torque control method, device, equipment, storage medium and program product, and belongs to the technical field of electromechanics. The method comprises the following steps: acquiring an expected output torque, an actual output torque and a current control value of a driving device, wherein the driving device comprises a rotating motor; determining an updated current control value based on the expected output torque and the actual output torque; determining a disturbance current compensation value based on the actual output torque, the current control value and a current compensation model; adjusting the updated current control value based on the disturbance current compensation value to obtain an adjusted updated current control value; and controlling the rotating motor to operate based on the adjusted updated current control value. According to the application, the adjusted updated current control value is more accurate, the number of control adjustments is reduced, and the adjustment efficiency is improved.

This invention discloses an intelligent inverter control method based on an adaptive algorithm, belonging to the field of intelligent inverter control technology. It employs a five-step approach: multi-source temperature acquisition and environmental identification, machine learning-based electro-thermal coupling prediction, adaptive inverter parameter optimization, collaborative thermal management, and fault diagnosis and self-repair. Addressing the risk of high or low temperature failures in motors and inverters under extreme climates, it acquires real-time temperature distribution and load information, predicts temperature rise trends in advance, and proactively adjusts inverter current, voltage, and modulation strategies to achieve safe derating or torque compensation. Furthermore, it performs multi-sensor cross-validation and observer fusion when sensors drift or components age, maintaining stable system operation and efficient energy utilization, significantly improving driving performance and vehicle reliability in extreme environments. During this process, online model updates further refine fault diagnosis and self-repair, enhancing the durability and economy of the electric drive system.

The load control system is configured to generate, by software, a function capable of using the power conversion device for a prescribed use in a case where hardware and software-based cooperative security authentication is established by cooperation between at least the control device and the power conversion device.

The invention discloses a torque control method and device, equipment, a storage medium and a program product, and relates to the technical field of motor control, and the method comprises the steps: determining a target pulse width based on a preset pulse width and a preset pulse width change coefficient in response to a torque control instruction, and determining a torque amplitude value based on the target pulse width and a preset torque amplitude value; generating a target pulse modulation signal, and performing torque control based on the target pulse modulation signal; under the condition that the preset torque amplitude is the same and the target pulse width is greater than the preset pulse width, the target area of the target pulse modulation signal in the single pulse period is the same as the area of the preset pulse modulation signal in the single pulse period; if yes, reducing the corresponding torque in a period of time starting from the pulse starting moment and / or a period of time before the pulse ending moment; therefore, the shaking or NVH problem of the whole vehicle is fundamentally relieved, and the driving comfort of the vehicle is improved.

A nonlinear and adaptive alternating-current servo electric motor angular position control method and system includes: acquiring original electric motor rotor angular position data; inputting the original electric motor rotor angular position data into a rotor angular position control module; performing second-order time differentiation on the electric motor rotor position data, so as to generate electric motor rotor angular acceleration data; inputting the electric motor rotor angular acceleration data and an output from the rotor angular position control module into an incremental inverse dynamic control module at the same time; and inputting the output from the incremental inverse dynamic control module into an electric motor current control module.

The embodiment of the invention provides a motor control method and device, electronic equipment and a storage medium, and the method comprises the steps: firstly, obtaining a target speed instruction, and obtaining a real-time rotating speed signal of a motor in a current sampling period; then, based on the target speed instruction and the real-time rotating speed signal, an initial current control instruction is generated; then, based on the real-time rotating speed signal, the real-time angular acceleration of the motor is determined, and a compensation current instruction is generated based on the real-time angular acceleration; and finally, generating a target current control instruction based on the compensation current instruction and the initial current control instruction, and performing operation control on the motor based on the target current control instruction, thereby effectively suppressing resonance disturbance, enabling acceleration and deceleration characteristics of the motor to tend to be gentle, remarkably reducing rotation speed fluctuation, enabling system dynamic response to be smoother, and improving system performance. Therefore, the anti-interference performance and the operation stability of the whole motor transmission system are improved.

A controller for an open power unit (OPU) 10, the OPU having a motor 4 outputting mechanical power to a machine 1. The controller 11 obtains a mechanical power demand from the machine, an operating st

A present measurement assistance device is a measurement assistance device that inputs a measurement signal used for a frequency response analysis of a servo system to the servo system, the measurement assistance device including a generation unit configured to generate a first signal determined to eliminate a shift between a first position of a load of the servo system at a start of an excitation with respect to the servo system of a speed command signal that changes with time to include a large number of frequency components and a second position of the load at an end of the excitation of the speed command signal, a synthesizing unit configured to generate a synthesized signal in which the first signal is superimposed on the speed command signal, and an excitation execution unit configured to input the synthesized signal to the servo system.

To provide an electric power tool capable of executing FOTA while suppressing a decrease in work efficiency.SOLUTION: An electric power tool includes: an electric motor; a communication device; and a first control unit including a first storage section that stores a control program for driving the electric motor, a second storage section for storing an update program of the control program that is to be received by the communication device, and a processor configured to be able to drive the electric motor by executing the control program after the communication device starts reception of the update program.SELECTED DRAWING: Figure 3

The invention discloses a torque control method and device, equipment, a storage medium and a program product, and relates to the technical field of motor control. When the working parameters meet the preset parameter requirements corresponding to the type of the motor, the torque of the motor can be controlled directly based on a torque control instruction sent by a vehicle control unit; when the working parameters of the vehicle do not meet the preset parameter requirements corresponding to the type of the motor, pulse parameters are determined on the basis of the current operation working condition, pulse modulation signals are generated on the basis of the pulse parameters, and the torque of the motor is controlled on the basis of the pulse modulation signals; the same pulse modulation signal can be prevented from being adopted when the torques of different types of motors or motors under different working conditions are controlled, so that the efficiency of a motor driving system is improved.

The present application relates to the field of motor control adjustment, and particularly relates to a motor speed adjustment method and system for remotely driving a vehicle, the method comprising: acquiring and preprocessing vertical, lateral and longitudinal vibration signals of each wheel of the vehicle and driving speed data; extracting vibration abnormal feature sequences and average speed sequences through a sliding window method to analyze correlation and quantify road condition features; then quantifying wheel cooperative stability based on wheel vibration correlation and lateral / vertical energy ratio difference, obtaining a speed adjustment factor by fusing maximum road condition features and average stability; combining preset speed, transmission ratio and the like to calculate an actual target speed of the motor, and realizing accurate speed adjustment through PID closed-loop control. The present application constructs a speed adjustment factor by quantifying three-dimensional road condition features and vehicle dynamic stability, and realizes real-time adaptive adjustment of the speed by combining PID closed-loop control, thereby significantly improving the safety and stability of remote driving.

The present application provides a motor speed control method, apparatus, device, and storage medium. The method includes: acquiring a current speed of a target motor and a predetermined desired speed; calculating a target driving voltage value of the target motor according to a speed difference between the current speed and the desired speed; and generating a corresponding control instruction and transmitting the control instruction to a corresponding motor driving module. The control instruction instructs the motor driving module to output a corresponding driving voltage to control the speed of the target motor. The current speed of the target motor is monitored in real time and the speed error is calculated in real-time, realizing real-time closed-loop control of the target motor, ensuring that the target motor can always work in a better performance range, thereby effectively improving the haptic feedback effect and enhancing the user experience.

The invention provides a measurement assistance device capable of suppressing position deviation of a load in frequency response analysis performed by inputting a speed command into a servo system. This measurement assistance device inputs a measurement signal for frequency response analysis of a servo system to the servo system, and is provided with: a generation unit that generates a first signal, the first signal is determined so as to cancel a deviation between a first position of a load of the servo system at the start of the oscillation of a speed command signal to the servo system and a second position of the load at the end of the oscillation of the speed command signal, and the speed command signal varies with time so as to include a plurality of frequency components. A combining unit that generates a combined signal in which the first signal is superimposed on the speed command signal; and a vibration execution unit that inputs the combined signal to the servo system.

To provide a rotation angle calculation device, a rotation angle calculation system, a rotation angle calculation method, and a rotation angle calculation program that can reduce, when signals of two orthogonal components with respect to an electrical angle are generated, for a rotation angle of a detection object, the error between a calculation result and the actual rotation angle of the rotated detection object.SOLUTION: A rotation angle calculation device comprises: an acquisition unit (21) that acquires a result of detection of leakage flux generated from one permanent magnet (4) included in a detection object for which a rotation angle is detected, from each of three detection elements (11) arranged at positions having an electrical angle deviated by 120 degrees from the permanent magnet (4); a generation unit (22) that, by using the acquired three detection results, generates orthogonal component signals indicating two orthogonal components representing the intensity of the leakage flux; and a calculation unit (23) that calculates the rotation angle of the detection object by using the orthogonal component signals.SELECTED DRAWING: Figure 3

The invention discloses a PID control-based motor control method and device, electronic equipment and a computer readable medium, and the control method comprises the steps: querying a particle swarm optimization result in response to an updating request of a PID control parameter; under the condition that the particle swarm optimization result is output, updating the PID control parameters by adopting the particle swarm optimization result; and under the condition that the particle swarm optimization result is not output, updating the PID control parameters by adopting predictive control parameters. The motor control method and device based on PID control, the electronic equipment and the computer readable medium have the beneficial effects that parameter accuracy and responsivity are considered.

The application discloses a kind of based on temperature rise prediction electric vehicle permanent magnet motor control method and control system, belong to motor control field.The method method includes: based on meshless method generates motor temperature rise sample data;Using chaos mapping-dream optimization algorithm to optimize multivariate variational modal decomposition parameters, reconstruct high-precision temperature rise data;GNN-BILSTM-Attention prediction model is constructed, and space-time double Attention mechanism is fused to predict future temperature rise;Establish temperature rise-electromagnetic parameter mapping model, design hierarchical early warning control strategy, form prediction-control closed loop.The application improves the speed and accuracy of temperature rise prediction, realizes prediction-control deep coupling, significantly enhances motor operation reliability and control accuracy.

Electric drive unit with a brushless DC motor and with a switching bridge for sensor-controlled commutation of the DC motor by at least one Hall sensor included in the DC motor, the Hall sensor being connected to the switching bridge and set up to detect an angle of rotation of the DC motor, and the drive unit also having a control unit, which is connected to the switching bridge and by which a setpoint speed for the DC motor can be specified, the control unit being set up to process Hall interrupts that are dependent on the angle of rotation and are caused by the at least one Hall sensor, and to determine an actual speed of the DC motor on the basis of time interrupts that are independent of the angle of rotation and the Hall interrupts that are dependent on the angle of rotation.

A method of determining the instantaneous operating state of an electric machine for its sensorless control with signal injection, comprising: injecting a HF supplementary excitation into the drive voltage of the electric machine, thereby modulating the drive current (y) of the electric machine by a modulating signal (z), measuring the drive current (y) of the electric machine, and estimating a state variable (x) of the electric machine using the measured drive current (y), wherein the estimation step includes: generating a modulation basis (s) from the excitation, multiplying (P1) the measured drive current (y) by a demodulation basis (r), which is correlated with the modulation basis (s), to obtain a first intermediate signal (ry), multiplying (P2) the transpose (sT) of the modulation basis (s) by the demodulation basis (r) to obtain a second intermediate signal (rsT), applying (F1) a set of finite-length filters to the first intermediate signal (ry), and applying (F2) the same set of finite-length filters and their moments to the second intermediate signal (rsT), to obtain a linear equation system (L), solving the linear equation system (L) to obtain the modulating signal (z), and estimating the state variable (x) based on the modulating signal (z)

The present invention provides a motor driving signal generation method and apparatus, a device, and a readable storage medium. The method comprises: drawing an initial waveform curve on the basis of vibration waveform information of a motor, and generating a first waveform signal corresponding to the initial waveform curve, wherein the vibration waveform information is waveform information for enabling a vibration action of the motor to satisfy an ideal haptic requirement, and the waveform curve is used for representing a change relationship of the amplitude of the signal over time; resampling the first waveform signal on the basis of a preset sampling rate and a duration of the first waveform signal to obtain a second waveform signal; and performing filtering processing and displacement protection processing on the second waveform signal to obtain a motor driving signal, wherein the motor driving signal is used for driving the motor to vibrate in a target operating frequency band. In the present application, the design of a motor vibration haptic effect can be achieved by drawing a signal waveform, thereby achieving high-efficiency waveform drawing and signal generation, and thus improving the haptic experience of a user when using the motor.

A control device (100) controls a motor (50) that drives a pump (60) which circulates a coolant (40) through lines (30) connected to a cooling device (20) for cooling a heat-generating component (10). The control device includes a processing unit (290). The processing unit includes a command acquisition unit (260) that acquires a rewrite command for an energy map. The processing unit also includes a correction unit (270) that rewrites the energy map based on actual energy consumption when the command acquisition unit acquires the rewrite command and the energy difference between the actual energy consumption and an estimated energy consumption is equal to or greater than a predetermined value.

A pedal device includes a pedal lever, an actuator, and a control unit. The pedal lever operates in response to a pedal operation. The actuator can apply a reaction force that is a force in a direction of returning the pedal lever by driving a motor. The control unit includes a current command calculation section that calculates a current command value based on a reaction force target value related to a reaction force applied to the pedal lever and a duty calculation section that calculates a duty command value based on the current command value, and controls a drive of a motor based on the duty command value. The duty calculation section corrects the duty command value based on at least one of a motor current supplied to the motor and a rotation speed of the motor.

In a work device for starting a microcomputer by operation of a trigger switch, firmware is made to be updatable and the microcomputer is made to be automatically restartable during update. In the work device that has a self-holding circuit 61 maintaining power supply from a power supply circuit 12 by output from a microcomputer 40 and has a structure in which stopping output to the self-holding circuit 61 causes interruption of power supply from the power supply circuit 12 to the microcomputer 40, the firmware of the microcomputer 40 is made to be rewritable and a power holding unit (condenser C1) for temporarily continuing power supply to the microcomputer 40 is provided, thereby realizing a so-called "off-delay timer function" for restarting the microcomputer 40. This configuration enables maintenance of power to the microcomputer 40 after update of the firmware even in a work device that cannot be restarted once power has been turned off unless trigger operation is performed, thereby enabling automatic restart of the microcomputer 40 after resetting is enabled.

Disclosed are a method, an apparatus, and a device for generating a motor drive signal, and a readable storage medium. The method includes: plotting an initial waveform curve based on vibration waveform information of a motor and generating a first waveform signal corresponding to the initial waveform curve; resampling the first waveform signal based on a preset sampling rate and a duration of the first waveform signal to obtain a second waveform signal; and performing filtering processing and displacement protection processing to the second waveform signal to obtain a motor drive signal, where the motor drive signal is configured to drive the motor to vibrate within a target operating frequency band. The disclosure enables designing of a motor vibration tactility effect through signal waveform plotting, which offers efficient waveform plotting and signal generation and enhances motor tactile experience of user.

The invention relates to the technical field of ice cream machines, in particular to a driving motor control method of an ice cream machine and the ice cream machine, and the driving motor comprises a stirring motor for driving a stirring cutter to rotate and a lifting motor for driving a cup assembly to slide towards the stirring cutter or driving the stirring cutter to slide towards the cup assembly; the current in the operation process of the stirring motor and the lifting motor is monitored in real time through the detection unit, so that the rotating speed change of the lifting motor and / or the stirring motor at different working positions is changed to automatically adjust a program, and the purpose of one-key operation intelligent stirring is achieved; according to the ice cream stirring device, only one working key can be adopted for soft and hard ice cream with different kinds of sugar, fat content or freezing temperature, one-key operation of all formulas is achieved, the stirring rotating speed is automatically adjusted actively according to the load current condition, and therefore the taste of the stirred ice cream is more ideal.

The invention discloses an amorphous alloy switched reluctance motor radial force control system and method considering a magnetostrictive effect and linear current compensation, belongs to the technical field of motor vibration control, and aims to solve the problems that vibration noise of an amorphous alloy switched reluctance motor is aggravated due to the magnetostrictive effect, and torque performance and vibration suppression are difficult to consider by an existing control strategy. The system comprises a speed controller module, an average torque control module, a direct force control module, a linear current compensator module, a switching signal logic processing module and an improved whale optimization algorithm module. The torque pulsation is reduced through average torque control, the radial force is cooperatively regulated and controlled through direct force control, the linear current compensator compensates the current in real time, and the whale optimization algorithm is improved to optimize parameters. The method is clear in process, can remarkably reduce the radial force peak value and the high-frequency vibration acceleration of the motor under the condition of sacrificing partial torque performance, effectively solves the problem of cooperative control of torque pulsation and vibration noise, is suitable for the fields of new energy automobiles and the like, and is high in practicability and high in popularization value.

A measurement support device is provided that can suppress positional deviation of a load in frequency response analysis that is performed by inputting a speed command to a servo system. [Solution] This measurement support device is a measurement support device that inputs a measurement signal used for frequency response analysis of a servo system to the servo system, and includes: a generation unit that generates a first signal determined to eliminate the discrepancy between a first position of a load of the servo system at the start of excitation of the servo system by a speed command signal that changes over time to include a large number of frequency components, and a second position of the load at the end of excitation of the speed command signal; a synthesis unit that generates a synthesized signal by superimposing the first signal on the speed command signal; and an excitation execution unit that inputs the synthesized signal to the servo system.