94results about "Multiple dc dynamo-electric motors control" patented technology

A distributed robot controller is disclosed, comprising a plurality of local controllers, each associated with a corresponding motor included in a plurality of motors comprising a robot; and a robot level controller coupled communicatively with each of the local controllers and configured to determine a plan to operate the plurality of motors to cause the robot to perform a task and send to each of the local controllers included in the plurality of local controllers at least a set of one or more torques associated with the motor with which that local controller is associated.

The invention discloses an anti-backlash control method and device for a dual-motor driving gear system, and relates to the technical field of servo control, and the method comprises the steps: obtaining the information of the dual-motor driving gear system, obtaining the reference position information of a large gear and the actual position information of the large gear based on the dual-motor driving gear system, and according to the reference position information and the actual position information of the bull gear, based on torque coupling compensation, obtaining a backlash-canceling bias current. Through cooperative control of the two motors, torque deviation is compensated in real time, the return difference problem in gear transmission can be effectively eliminated, a torque coupling compensation control algorithm based on speed deviation can quickly respond to load change and motion state switching, it is ensured that the system is still kept stable under the high-dynamic condition, and the stability of the system is improved. And a torque balance mechanism of dual-motor cooperative work improves the stability and anti-interference capability of the system, and meets the precision transmission requirements under complex working conditions.

Described are systems and methods for monitoring and managing power sharing across multiple loads connected to a shared direct current (DC) bus. Embodiments of the present disclosure may be implemented to monitor and manage power sharing between multiple propulsion mechanisms (e.g., motors) of an aerial vehicle, such as an unmanned aerial vehicle (UAV). One or more shape functions establishing current limits as a function of the DC bus voltage may be determined for each load (e.g., propulsion mechanism / motor) of the multiple loads (e.g., propulsion mechanisms / motors) connected to the DC bus, and the current consumed by each load can be limited based on the DC bus voltage and each shape function.

The utility model discloses a building block type development board based on an ARM (Advanced RISC Machines) platform, which is characterized by comprising a core board and an expansion board electrically connected with the core board, and the core board is provided with a minimum system circuit, a USB (Universal Serial Bus) to serial port circuit, a USB functional port circuit and a serial port one-key downloading circuit, the minimum system circuit is respectively and electrically connected with the USB function port circuit and the serial port one-key downloading circuit, the serial port one-key downloading circuit is electrically connected with the USB to serial port circuit, the expansion board is provided with a power supply switching circuit, a voltage conversion circuit and an expansion circuit, the power supply switching circuit is electrically connected with the voltage conversion circuit, and the voltage conversion circuit is electrically connected with the expansion circuit. The size of the development board is reduced, the customization convenience is improved, the expansibility is enhanced, the cost is reduced, an external USB to serial port line and a downloader downloading program are not needed, and the convenience is improved.

A power-driven impact tool is provided. The impact tool includes a motor, a transmission, and a rotary impact mechanism received in a housing. The transmission may be a planetary transmission that reduces a speed of a rotary force output by the motor. The impact tool may be a cordless impact tool, receiving power from a battery back that is removably coupled in a battery receptacle of the housing. First and second handles on the housing may provide for user stability and control during operation of the impact tool. A plurality of user selection devices, including a trigger, a forward / reverse switch, and a mode selector, may be provided on one of the handles for user control of the impact tool.

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.

A system and method of swapping a primary battery of an electric machine may include storing, by the primary battery, a first amount of energy. A secondary battery may store a second amount of energy that is less than the first amount of energy. First electrical power may be supplied from the primary battery to at least one motor. A second voltage level of the secondary battery may be managed (e.g., boosted) to match a first voltage level of the primary battery in response to receiving a battery swap initiation signal during which the primary battery is to be electrically disconnected from the electric machine to enable second electrical power from the secondary battery to be supplied to the motor(s) therefrom.

The invention discloses a high-precision linear motion direct-current driving system for spaceflight and a control method of the high-precision linear motion direct-current driving system, and relates to the technical field of spacecraft attitude driving control. The high-precision linear motion direct current driving control method for spaceflight comprises the steps of linear direct current motor response aging judgment, spacecraft driving load evaluation and spacecraft driving signal optimization. According to the method, the driving load influence evaluation requirement is determined through command signal response timeliness judgment, if the driving load influence evaluation requirement does not exist, the spacecraft attitude adjustment process continues to be monitored, otherwise, the driving load optimization requirement continues to be determined, and finally if the driving load optimization requirement exists, the oscillation signal influence quantification requirement continues to be determined. Otherwise, the oscillation signal optimization requirement is directly determined after the oscillation signal influences quantification, the spacecraft linear motion direct current driving stability is improved, and the problem that in the prior art, spacecraft linear motion direct current driving is not stable due to the spacecraft attitude adjustment load requirement difference is solved.

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

The present application is directed to a multi-axis drive control circuit. For multiple drive axes with no need for linkage of each phase, the multi-axis drive control circuit respectively comprises: a drive axis selection circuit unit, which is used for outputting a selection signal that enables a target drive axis; and a PWM signal multiplexing circuit unit, which is used according to the selection signal for causing a PWM signal output path of the target drive axis to be on, and causing PWM signal output paths of drive axes other than the target drive axis to be off. The technical solutions may achieve multi-axis drive control in a situation where microprocessor resources are limited.

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.

A system and method of swapping a primary battery of an electric machine may include storing, by the primary battery, a first amount of energy. A secondary battery may store a second amount of energy that is less than the first amount of energy. First electrical power may be supplied from the primary battery to at least one motor. A second voltage level of the secondary battery may be managed (e.g., boosted) to match a first voltage level of the primary battery in response to receiving a battery swap initiation signal during which the primary battery is to be electrically disconnected from the electric machine to enable second electrical power from the secondary battery to be supplied to the motor(s) therefrom.

A braking system may include: a first motor that provides a driving force for a first electronic parking brake; a first control circuit and a second control circuit, each independently connected to and controlling the first motor; a first switching circuit connected between the first motor and the first control circuit; a second switching circuit connected between the first motor and the second control circuit; a first microcontroller unit electrically connected to the first control circuit; and a second microcontroller unit electrically connected to the second control circuit.

The invention relates to a motor drive unit (1) configured for driving N-1 electric motors (2) of an electronic door latch arrangement (3) of a vehicle (4), comprising N ≥ 4 half-bridges (6) and the N-1 electric motors (2) with N being a natural number, wherein each half-bridge (6) comprises two switches (8, 10) arranged in series thereby forming a midpoint (11), each motor (2) is galvanically conductively connected to two different midpoints (11), and each midpoint (11) is galvanically conductively connected to ≥ 1 and ≤ N-2 electric motors (2). In this way an improved control of electric motors in a vehicle is provided.

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.

A distributed robot controller is disclosed, comprising a plurality of local controllers, each associated with a corresponding motor included in a plurality of motors comprising a robot; and a robot level controller coupled communicatively with each of the local controllers and configured to determine a plan to operate the plurality of motors to cause the robot to perform a task and send to each of the local controllers included in the plurality of local controllers at least a set of one or more torques associated with the motor with which that local controller is associated.

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.

The utility model discloses a control loop capable of feeding back the stopping condition of a robot motor, and relates to the field of electrical control. The driver controls a coil of the intermediate relay, a normally open contact of the intermediate relay and the motor band-type brake are connected in series, and the switching power supply supplies power; and the normally closed contact of the intermediate relay is connected in parallel with the normally closed contact of the delay relay. A driver band-type brake outputs 24V, an intermediate relay coil is electrified, an intermediate relay normally-open contact is closed, a motor band-type brake is electrified and opened, a normally-closed contact is opened, a time delay relay normally-closed contact is in a closed state, driving is not abnormal, and the robot works normally. Once an I / O module is in sudden stop failure, after the sudden stop is pressed down, 24V output of the driving band-type brake still exists, the normally-closed contact of the intermediate relay is not closed, the normally-closed contact is disconnected after the time of the time delay relay is up, and an alarm is driven. Normally-closed contacts of an intermediate relay of the control motor are connected in series, and the situation that an I / O module suddenly stops and fails to drive and cannot give an alarm normally when a contact adhesion fault occurs to a certain normally-closed contact is avoided.

The invention discloses a direct current motor multiplexing control circuit and control method, the circuit comprises a multiplexing module, a plurality of power bridge arms and a plurality of load motors, the plurality of power bridge arms are arranged in parallel, and one load motor is arranged between each power bridge arm and the multiplexing module; the first pole of the multiplexing module and the first poles of the plurality of power bridge arms connected in parallel are connected to a power supply voltage VCC and are used for supplying power to the whole circuit; and the second pole of the multiplexing module and the second poles of the plurality of power bridge arms connected in parallel are connected to the negative pole of the power voltage or grounded, and are used for protecting the circuit or returning current. The multi-load motor is overlapped and multiplexed through the multiplexing module, the utilization rate is improved, the multiplexing module is a half bridge of the H-bridge circuit, a plurality of power bridge arms are arranged in the other bridge arm direction, driving control over one or more load motors can be achieved in the same circuit, the number of devices is effectively reduced, the cost is reduced, and the reliability of the circuit is improved. The mutual inductance and electromagnetic interference of the device on the PCB are further reduced, and the reliability of the circuit is improved.

The invention relates to a driving method and a driving circuit for improving motor driving efficiency, reducing electromagnetic noise and temperature rise of a motor and reducing vibration noise by positively utilizing winding energy storage. The driving circuit comprises a central controller, a controllable power switch controlled by the central controller, a follow current element and a physical commutation detection device. The energy-saving and noise-reducing driving method comprises the following steps: the driving circuit actively cuts off the driving current of the winding through the controllable power switch before each physical commutation moment t time, so that the stored energy of the winding is released as back electromotive force, and before physical commutation, the current and the magnetic field are continued for the winding through the follow current loop, so that the winding is utilized to store energy in the forward direction; the purposes of saving energy, reducing temperature rise of the motor, reducing electromagnetic interference and reducing noise are achieved; before physical commutation of each winding, the absolute value of the driving current of each winding has a decreasing time period, that is, the absolute value of the driving current of each cycle of each winding is characterized by gradually increasing and then gradually decreasing on the whole.

A system for dissipating energy generated by a motor comprises a first motor 1030, a second motor 1060 and a controller 1010. The controller is configured to drive the first motor, detect electrical e

TITLE: Drive control for electric motors, in particular for windshield wipers of motor vehicles Drive control (115, 120) for electric motors (125', 130') of motor vehicles, in particular for motors (125', 130') of windshield wiper arms (135, 140), designed for operation at a reduced processor clock frequency. Figure 1

A system and method of swapping a primary battery of an electric machine may include storing, by the primary battery, a first amount of energy. A secondary battery may store a second amount of energy that is less than the first amount of energy. First electrical power may be supplied from the primary battery to at least one motor. A second voltage level of the secondary battery may be managed (e.g., boosted) to match a first voltage level of the primary battery in response to receiving a battery swap initiation signal during which the primary battery is to be electrically disconnected from the electric machine to enable second electrical power from the secondary battery to be supplied to the motor(s) therefrom.

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 motor control circuit configured to operate two or more motors by driving the motors connected to output terminals of the motor control circuit. Each output terminal of the motor control circuit can be connected to a driver circuit of the motor control circuit. Two or more of the motors can share an output terminal. For motors that share an output terminal, the operation of a first motor can affect the operation of other motors connected to that shared output terminal. The motor control circuit can store information about which output terminals can be paired, that is, which output terminals can be connected to the same motor.Based on pairing information stored by the motor control circuit, the protection circuit of the motor control circuit can operate to prevent nuisance shutdown of one motor due to the operation of another motor sharing the same output terminal.