32results about "Multiple dc dynamo-electric motors control" patented technology

According to one embodiment, an information processing terminal includes a checkout device, a printer, and at least one of a scanner, a card reader, and a display unit. The checkout device includes a power source circuit that outputs a first voltage. The printer includes a first motor, a printing unit, a second motor, a charging circuit, and a connection unit. The first motor feeds a printing sheet. When a rotational force is applied, the second motor converts the applied rotational force into electric power. The charging circuit holds the electric power converted from a rotational force of the first motor by the second motor, and supplies the held electric power when the printing unit forms an image. The connection unit receives the first voltage. The scanner, the card reader, and the display unit are operated by upon receiving the first voltage.

To provide an information processing terminal for suppressing the maximum value of power requested to a power supply circuit.SOLUTION: An information processing terminal according to an embodiment includes a checkout device, a printer, and at least one of a scanner, a card reader, and a display unit. The checkout device includes a power supply circuit that outputs a first voltage. The printer includes a first motor, a printing unit, a second motor, a charging circuit, and a connection unit. The first motor feeds the printing paper. The printing unit forms an image on a print sheet. The second motor converts the applied rotational force into electric power when the rotational force is applied, and converts the applied electric power into the rotational force when the electric power is applied. The charging circuit holds the electric power converted by the second motor from the rotational force of the first motor and supplies the held electric power when the printing unit forms an image. The connection part receives a first voltage. Each of the scanner, the card reader, and the display unit operates by receiving the first voltage.SELECTED DRAWING: Figure 1

A system includes a first motor, a second motor, and a third motor, each respective motor comprising three phases. The system further includes a voltage source inverter circuit comprising multiple respective inverter legs. Each respective inverter leg coupled to drive at least one phase of at least one of the respective motors, with a first shared inverter leg coupled to drive a third phase of the first motor and drive a first phase of the second motor. A second shared inverter leg is coupled to drive a third phase of the second motor and a first phase of the third motor.

To provide an optimized multi-axis system with multiple axes having mechanical connections, a feedforward control identification process is provided. During this process, the actual identification variables (x1', x2') appearing at the motors (M1, M2) are provided to the identification units (I1, I2) associated with the feedforward control units (V1, V2). The feedforward control parameters (V1, V2) are identified using the actual identification variables (x1', x2'), and the closed-loop control units (R1, R2) are parameterized using the feedforward control parameters (V1, V2).

The invention relates to a compact two-way direct current motor controller suitable for biaxial inertial navigation, and relates to the technical field of motor control. The controller comprises an upper-layer control board and a lower-layer driving board which are both 30mm * 40mm in size and are vertically butted through an inter-board connector. The control panel is used as a core and is responsible for algorithm execution and communication; the driving board takes two motor driving chips as a core and respectively drives two paths of direct-current brush motors. The control panel is powered by a single 5V power supply, and the voltage of the control panel is stabilized to 3.3 V through an LDO to supply power to the DSP. The control panel integrates two paths of RS422 differential serial ports, and has strong anti-interference communication capability. Through the innovative double-layer partition layout, large-current driving and a precise control circuit are physically isolated, the problems of heat dissipation and EMI in high-density design are solved, organic combination of low cost, miniaturization and high driving power (10A peak current driving capacity) is achieved, and the circuit is particularly suitable for automatic equipment with limited space.

Method for operating a motor-roller controller wherein an first value indicative of an amperage at an input power port of a first motor-roller controller is measured by a meter of the first motor-roller controller, the first value is send to at least one second motor-roller controller via a signal bus port of the first motor-roller controller, at least one second value indicative of an amperage at an input power port of the at least one second motor-roller controller is received at the signal bus port, a nominal value for the amperage at the input power port of the first motor-roller controller is determined depending on the first value and the at least one second value, and the motor-roller control port of the first motor-roller controller is operated with an output current to the motor-roller such that the amperage at the input power port reaches the nominal value.

The utility model relates to a direct current motor control device which comprises a circuit board. The circuit board is provided with an IIC address switching module, an IIC interface module, a steering engine driving module, a GPIO input module, a GPIO safety lock module, a control switching module, a first steering engine control output module, a second steering engine control output module, a motor driving input module, a motor driving module and a motor control output module. The IIC address switching module and the IIC interface module are connected with the steering engine driving module, the output of the IIC address switching module and the IIC interface module is divided into two parts which are respectively connected with the control switching module and the second steering engine control output module, the GPIO input module is connected with the GPIO safety lock module, the output of the GPIO input module is connected with the control switching module, and the output of the control switching module is connected with the first steering engine control output module; and the motor driving input module is connected with the motor control output module through the motor driving module. The device integrates the functions of steering engine debugging, common direct current motor debugging and driving control, and is rich in function, large in control quantity and simple in debugging operation.

Motor controller circuitry configured to operate two or more motors by driving the motors connected to output terminals of the motor controller circuitry. Each output terminal of the motor controller circuitry may connect to a driver circuit of the motor controller circuitry. Two, or more, of the motors may share an output terminal. For motors that share an output terminal, the operation of a first motor may affect the operation of other motors connected to that shared output terminal. The motor controller circuitry may store information about which output terminals may be paired, that is, which output terminals may connect to the same motor. Based on pairing information stored by the motor controller circuitry, protection circuitry of the motor controller circuitry may operate to prevent nuisance shutdown of a motor because the operation of another motor that shares the same output pin.

A brake system may include: a first motor providing a driving force to a first electronic parking brake; a first drive circuit and a second drive circuit each independently connected to the first motor, and driving the first motor; a first switch circuit connected between the first motor and the first drive circuit; a second switch circuit connected between the first motor and the second drive circuit; a first micro controller unit electrically connected to the first drive circuit; and a second micro controller unit electrically connected to the second drive circuit.

The application discloses an air conditioning system, comprising: a power supply unit for outputting a power supply voltage; the wind-driven part circuit comprises a booster circuit and is used for boosting the power supply voltage and outputting the power supply voltage through a bus of the wind-driven part circuit, one path of the bus voltage of the wind-driven part circuit is output to the fan, and the other path of the bus voltage of the wind-driven part circuit is output to the compressor through the switch part; a pressure driving part circuit; and the control part is configured to obtain one or more parameters of the bus voltage, the compressor frequency and the compressor current of the press driving part circuit, and control the on-off state of the switch part according to the parameters. According to the air conditioning system, only the bus voltage supplied to the fan is boosted, so that the cost can be saved. One path of the boosted bus voltage of the wind driving part circuit is output to the compressor through the switch part, and when the bus voltage of the press driving part circuit cannot support the compressor, the bus voltage of the wind driving part circuit and the bus voltage of the press driving part circuit are superposed to guarantee normal operation of the compressor.

The present embodiments relate to a steering control device and method of a vehicle. A steering control device according to embodiments may include a dual winding steering motor unit including a first winding motor and a second winding motor therein, and a controller configured to, in order to switch a driving power supplied from a power supply unit to drive the dual winding steering motor unit, detect an output value based on a phase current detection value detected by a phase current sensor, and compare the output value with a reference value and control the dual winding steering motor unit to a target output value based on the comparison result.

In order to provide an optimized multi-axis system having mechanically coupled axes, a feedforward control identification process is provided, during which actual identification variables occurring in each case at the motor are each provided to identification units associated with the feedforward controllers, wherein feedforward control parameters are identified using the actual identification variables, and closed-loop controllers are parameterized using the feedforward control parameters.

The invention discloses a vehicle-mounted universal servo driving device, relates to the technical field of vehicle-mounted motor driving, and aims to solve the problems of high research and development cost, difficult inventory management, tedious precision switching and the like caused by'one voltage, one plate, one working condition and one precision 'in an existing vehicle-mounted servo driving scheme. The device comprises a main control module, and an adjustable voltage module, a sampling precision adaptation module and a hardware version management module which are electrically connected with the main control module respectively, the adjustable voltage module realizes 6V-36V multi-voltage output and adapts to a vehicle-mounted multi-subsystem motor; the sampling precision adaptation module adopts a same-package serialized sampling element, and switching between a sampling range of 1A-10A and a sampling resolution of 0.0005-0.005 can be realized by replacing the element; and the hardware version management module automatically identifies a hardware version and loads corresponding parameters. Through the universal architecture design, the full life cycle cost of the vehicle-mounted multi-voltage servo system is reduced, and the adaptation flexibility and the maintenance efficiency of the driving device are improved.

The application aims to provide a seeding amount adjusting method suitable for a track type seeder, and belongs to the field of agricultural machinery. A target seeding amount and a walking speed are set, an MCU calls a seeding amount prediction model to calculate an initial rotating speed of a seeding motor, an image acquisition unit acquires images, after the seeder passes a first row of tray front end position, a real-time monitoring stage is entered, when the seeder runs to the end position of the row of trays, the Jetson outputs the actual seeding amount of each tray of the row to the MCU, the MCU judges whether the error between the target seeding amount and the actual seeding amount is less than or equal to 5%, if yes, the current seeding motor rotating speed is continued to run, otherwise, the rotating speed of the seeding motor is dynamically adjusted according to the error between the target seeding amount and the actual seeding amount, and finally the seeding amount of each tray is stabilized in the set range. The application monitors the seeding amount in real time, and dynamically adjusts and controls the seeding amount according to the monitoring result, so as to improve the efficiency of indoor seedling seeding operation, and the seeding uniformity, stability and scale adaptability.

A system is provided that includes multiple motors, each respective motor comprising three phases; a voltage source inverter circuit comprising multiple respective inverter legs; each respective inverter leg coupled to drive at least one phase of at least one of the respective of the respective motors; wherein a first shared inverter leg is coupled to drive a first phase of a first motor and drive third phase of a second motor; and wherein a second shared inverter leg is coupled to drive a third phase of the second motor and a first phase of a third motor.

To provide a vehicular control device that enables timings when control circuits are activated to coincide with each other even when a vehicle power supply is turned on during execution of power latch control.SOLUTION: A vehicular control device includes a first reaction force control circuit 41A, a second reaction force control circuit 42A, a first turning control circuit 51A and a second turning control circuit 52A. The control circuits are activated at a time when a vehicle power supply is turned on. Further the control circuits execute power latch control by which the vehicle power supply is held only in a predetermined period of time, at the time (a time T1) when the vehicle power supply is turned off. When the vehicle power supply is turned on during execution of the power latch control after the vehicle power supply is turned off, the control circuits are activated after all of the control circuits recognize that the vehicle power supply is turned on (a time T7).SELECTED DRAWING: Figure 3

The invention provides a small rotor motor rotating speed control method and system, and the method comprises the steps: firstly building a small rotor motor rotating speed control system which comprises a motor, an electronic speed controller, an Arduino circuit board, an upper computer, a test bed, a DC power supply, a data collection system, a BEC power supply and a Hall current sensor; an Arduino circuit board port is defined; initializing control parameters of the motor; calibrating the stroke of the electronic speed control accelerator; calibrating the current of the motor; and adjusting motor control parameters according to the change condition of the motor rotating speed to complete motor rotating speed control. According to the invention, closed-loop control of motor speed and independent real-time acquisition and monitoring of multi-motor current can be realized, the speed control precision can be improved, the reliability of test data can be improved, the influence on the test progress and even the test safety caused by the damage of the motor due to overlarge current can be avoided, the equipment development cost can be reduced, and the test cost can be saved.

A multi-motor drive unit includes a rear cover and a plurality of motors disposed on a radial plane about a central longitudinal axis. The rear ends of the plurality of motors are fixed to the rear cover, and each of the plurality of motors includes a pinion gear. The multi-motor drive unit includes a main gear including a peripheral tooth engaged with a pinion gear of each of the plurality of motors, a motor adapter disposed between the main gear and the plurality of motors for guiding and supporting front ends of the main gear and the plurality of motors, an output shaft disposed between the main gear and the plurality of motors, and an output shaft disposed between the main gear and the plurality of motors. And a front cover for guiding and supporting an output bearing of the output shaft.

The invention discloses an intelligent seat electric state safety detection control device, which relates to the technical field of seat electric state detection and comprises a current sampling module and a voltage sampling module, the detection switching module transmits current signals to the signal processing module for signal processing, the detection switching module transmits voltage signals to the signal processing module for signal processing, the micro-control module receives the signals, and the micro-control module identifies bar code information of the seat through the code scanning gun device and determines the number of direct current motors of the seat. When the number of the direct-current motors of the seat exceeds the number of the detectable direct-current motors, the detection switching module is controlled to switch a signal transmission path when the extra group of direct-current motors work, and current and voltage detection of the group of direct-current motors is completed. According to the intelligent seat electric state safety detection control device, the detection efficiency can be improved, and the detection work of the seat motor can be completed.

The invention relates to a control method of an inertial stabilization platform suitable for a dynamic quantum absolute gravimeter, a control system comprises an upper computer, a combined inertial navigation unit, a microcontroller and a motor driving unit, the control system is a three-closed-loop control system of a current loop, a speed loop and a position loop, and the control method comprises the following specific steps: firstly, performing initialization; after initialization is completed, the control system enters an initial state, and after the microcontroller receives a current loop starting command, current loop closed-loop control is carried out; at the moment, the microcontroller receives a speed ring starting command, the control system enters a damping state and starts closed-loop control of the speed ring, and at the moment, the inertial stabilization platform can resist the external angular velocity to generate feedback torque; after the microcontroller continues to receive the position loop opening command, the control system enters absolute attitude control, at the moment, the inertial stabilization platform is locked at a set angle, and the method is a high-precision and high-bandwidth control method, can adapt to extreme complexity of the marine environment and can achieve automatic control.

Spinning machine comprising a plurality of work stations with electric drives, in particular DC motors, and at least two DC voltage sources with voltages U1 and U2, each forming a DC voltage network N1 and N2. At least three DC voltage rails for powering a plurality of drives, in particular DC motors, are connected to the at least two DC voltage sources in such a way that a first DC voltage rail is in operative connection with a first DC voltage source, a second DC voltage rail is in operative connection with a second DC voltage source, and a third DC voltage rail is in operative connection with the first DC voltage source and the second DC voltage source. The current collectors of the plurality of drives, in particular DC motors, are optionally connected to the first DC voltage rail and the third DC voltage rail, or to the second DC voltage rail and the third DC voltage rail. The two DC voltage networks N1 and N2 are in operative connection with a voltage equalization device to compensate for voltage differences in the two DC voltage networks N1 and N2.

A system for shifting operation modes of Variable Flux Memory Motor (VFMM) from external inputs includes one or more VFMMs that convert electrical power to kinetic energy, the one or more VFMMs being configured to shift to any one of a plurality of operation modes, one or more man-machine interfaces that receive one or more external inputs from a user, the one or more external inputs being indicative of a target operation mode from the plurality of operation modes selected by the user, and a controller that shifts the operation mode of the one or more VFMMs to the target operation mode based on the one or more external inputs received from the one or more man-machine interfaces.

A multi-motor drive unit includes a rear cover and a plurality of motors disposed around a center longitudinal axis along a radial plane. A rear end of the plurality of motors is secured to the rear cover and each of the plurality of motors includes a pinion. The multi-motor drive unit includes a master gear including peripheral teeth that engage the pinion of each of the plurality of motors, a motor adapter disposed between the master gear and the plurality of motors to pilot and support the master gear and a front end of the plurality of motors, an output shaft, and a front cover to pilot and support an output bearing of the output shaft.

Disclosed is a vector flux weakening control method for vector flux weakening for a vehicle permanent magnet synchronous motor, which includes a current closed-loop adjuster, a modulation ratio deviation calculator, a current command angle compensator, a current angle preset processor, a current command angle limiting comparator and a current given vector corrector. The adjusting direction of the present disclosure is always a flux weakening direction, and instability caused by repeated adjustment will not occur; by introducing dq current while performing correction, the pressure against voltage saturation can be shared to both d-axis and q-axis current, so as to avoid excessive output torque deviation caused by excessive adjustment of a single-axis current; the influence of the flux weakening control link on the output torque of the drive system can be minimized as much possible while ensuring the safety of the drive system.

To provide a drive unit capable of contributing to downsizing of a casing size while achieving reduction in cost.SOLUTION: A drive unit includes a first drive part group 11 of which each generates magnetic field and which has a plurality of first drive parts for driving a first object 1_1 with a first magnet 3_1 in an optical axis direction, and a second drive part group 12 of which each generates magnetic field and which has a plurality of second drive parts for driving a second object 1_2 with a second magnet 3_2 in the optical axis direction. Each of the plurality of first drive parts and the plurality of second drive parts has a first terminal and a second terminal connected with a master for controlling itself as a slave via a clock signal line and a data signal line. In the plurality of first drive parts, the first terminal is straight connected to the clock signal line and the second terminal is straight connected to the data signal line. In the plurality of second drive parts, the second terminal is reversely connected to the clock signal line and the first terminal is reversely connected to the data signal line.SELECTED DRAWING: Figure 1

The application discloses a kind of multi-shaft motor synchronous tracking control method and system, chip, it is related to motor control technical field.The method includes: based on motion task basic parameter and system physical constraint parameter, utilize preset speed profile, motor motion reference trajectory is planned;Based on reference trajectory and feedforward controller transfer function, feedforward precontrol quantity is calculated, to carry out feedforward control;Actual position information of motor is acquired, and based on actual position information and the feedforward precontrol quantity, error correction control quantity is calculated, to carry out feedback control;Based on the duty cycle of the synthesis of feedback error correction control quantity and feedforward precontrol quantity, pulse width modulation (PWM) voltage is calculated and motor positive and negative rotation is controlled.The application improves the response speed of motor control, trajectory tracking control precision, multi-motor synchronism.

A system is provided that includes multiple motors, each respective motor comprising three phases; a voltage source inverter circuit comprising multiple respective inverter legs; each respective inverter leg coupled to drive at least one phase of at least one of the respective of the respective motors; wherein a first shared inverter leg is coupled to drive a first phase of a first motor and drive third phase of a second motor; and wherein a second shared inverter leg is coupled to drive a third phase of the second motor and a first phase of a third motor.