Abstract: A system (1) has a control device (10) with central electronics (11) designed for connection and operation of differently coded electric motors (En), with different motor characteristics (Mn) and/or power classes (Ln), to a device connection (12) of the control device (10). The at least one electric motor (En) is selectable from a number (n) of electric motor (En), that can be connected as intended, has a coding element (Kn). The central electronics (11) have a coding capture device (2) to recognize, via coding element (n), the motor characteristics (Mn) and/or the power class (Ln) of the respective currently connected electric motor (En).

Abstract: A work machine is disclosed. The work machine may include a frame, an implement system coupled to the frame, one or more sensing devices, and a control unit in communication with the implement system and the one or more sensing devices. The one or more sensing devices may be configured to transmit sensing device data relating to an operation of the implement system. The control unit may receive the sensing device data, compare the sensing device data with a stall threshold, and initiate a stall timer based on determining that the sensing device data satisfies the stall threshold. The stall timer may be configured to measure a stall duration. The control unit may compare the stall duration with a duration threshold, identify a stall event based on determining that the stall duration satisfies the duration threshold, and cause an action to be performed based on the stall event.

Abstract: An antilock brake system is disclosed comprising a first wheel and second wheel disposed on opposite sides of a vehicle. A first electric motor providing torque to the first wheel and a second electric motor providing torque to the second wheel. A sensor monitoring each wheel and a brake on each wheel. A system is described wherein a processor monitors signals from the sensors and increases torque to either wheel when it detects that the wheel is not rotating when another wheel is rotating. Also disclosed is an antilock brake system as above with a third wheel disposed on the rear of the vehicle also comprising a sensor and brake on the third wheel and wherein the processor monitors signals from the sensors to increase torque to either front wheels when it detects that the wheel is not rotating when another wheel is rotating.

Abstract: According to an aspect of the invention, a motor operation control system configured to control an operation of a multi-axis mechanical apparatus including motors includes drive control units each of which is provided for one corresponding motor and a central controller configured to output an operation command to the drive control units. Each of the drive control units controls an operation of a motor based on the operation command from the central controller and transmits a response signal to another drive control unit and the central controller through asynchronous serial communication.

Abstract: An electrical serially-connected control system for driving motors in series includes a control device, at least one processing device, and a transmission medium connected between the two devices for mutual communication. The control device includes a power rectifier transforming an external power, a signal converter converting each external command signal, and an integration unit connected to the rectifier and the converter for integrating the transformed power with each converted command signal to create commands. The processing device includes a voltage regulator connected to the transmission medium for stabilizing the power come from the command, a power storage module connected to the voltage regulator and each motor, a signal filter connected to the transmission medium for processing the command signal come from the command, a controller connected with the voltage regulator, the power storage module and the signal filter, and a signal generator connected to the controller.

Abstract: A load control system has a plurality of drivers provided correspondingly to a plurality of load driving elements in order to control driving of the respective load driving elements for driving loads. Each of the plurality of drivers includes a control unit that controls the load driving element directly associated with a subject driver. The respective drivers are electrically connected to one another so that a mutual control communication state, in which the control unit of the subject driver can transmit to the control units of all or a portion of target drivers of other drivers excluding the subject driver a command signal for controlling the driving of a load driving element directly associated with the all or the portion of target drivers, is created in the load control system.

Abstract: A motor drive is provided that includes a control circuit or board and a one or more functional circuits or option boards coupled to the control board, and a profile that includes a configuration for the option board. A method of operating a motor drive that includes loading a profile for a option board coupled to a control board of the controller, wherein the profile comprises a configuration for the option board. A tangible machine-readable medium implementing the method is also provided.

Abstract: A motor device comprising a motor, and a drive control circuit for driving and controlling the motor, in which the drive control circuit includes a control unit for generating a control signal for controlling the rotation of the motor, a drive unit for driving the motor on the basis of the control signal, and a communication unit for making serial communications via a serial communication bus for transmitting serial data. This communication unit has an address generating function for generating and setting addresses.

Abstract: A control system for a massage device. The massage device has a base, a carriage movably engaged with the base, a plurality of kneading heads mounted on the carriage, and a motor operative to drive the plurality of kneading heads to produce a kneading effect on a body of a user and to drive the carriage up and down relative to the base such that various areas of the body can be massaged.

Abstract: Methods and apparatus are provided that include or provide a first three-phase induction machine including stator windings, a second three-phase induction machine including stator windings, wherein the stator windings of the first machine are coupled in series with the stator windings of the second machine, and an inverter circuit that provides a three-phase output signal coupled to the stator windings of the first machine. Other aspects are also provided.

Abstract: A motor drive is provided that includes a control circuit or board and a one or more functional circuits or option boards coupled to the control board, and a profile that includes a configuration for the option board. A method of operating a motor drive that includes loading a profile for a option board coupled to a control board of the controller, wherein the profile comprises a configuration for the option board. A tangible machine-readable medium implementing the method is also provided.

Abstract: Systems and methods are provided for controlling a double-ended inverter system having a first inverter and a second inverter. The method comprises determining a required output current and determining a desired second inverter current. The method further comprises determining a second inverter switching function, wherein only a selected leg in the second inverter is modulated at a duty cycle, determining a first inverter switching function based on the second inverter switching function, and modulating the first inverter and the second inverter using the first inverter switching function and the second inverter switching function.

Abstract: A control method for motor driver includes: outputting a first signal from the controller to the first motor driver; making the first timer start to count for a first time; returning a first feedback signal from the first motor driver to the controller; dividing a value of a first count time of the first timer by two to get a value of a first delay time, wherein the first delay time is defined as the time of transmitting signals from the controller to the first motor driver; adding the value of the first delay time to the value of the first count time of the first timer to get a first sum; and transferring the first sum to the second timer to replace a value of a count time of the second timer.

Abstract: For mutually cross-interlocked multiple asynchronous AC induction electrical machines of the present invention, wherein the applicable operating characteristic curves of the asynchronous AC induction electrical machines include the asynchronous AC induction electrical machine of various operating characteristics, wherein when they are provided for the individual operation in different loading conditions, it is characterized that the cross interlocked electrical machine can be used to increase or decrease the rotational speed of the individual operation.

Abstract: A motor controller for controlling an electric motor including a soft starter and a human-machine interface for control and configuration of the soft starter. The soft starter includes a visual display and a selector associated with the visual display. A method to configure a motor controller for controlling an electric motor, including a soft starter and a human-machine interface for control and configuration of the soft starter. A computer program and graphic user interface for carrying out the method.

Abstract: Systems and apparatus are provided for an inverter system for use in a vehicle. The inverter system comprises a six-phase motor having a first set of three-phase windings and a second set of three-phase windings and a three-phase motor having a third set of three-phase windings, wherein the third set of three-phase windings is coupled to the first set of three-phase windings and the second set of three-phase windings. The system further comprises a first energy source coupled to a first inverter adapted to drive the six-phase motor and the three-phase motor, wherein the first set of three-phase windings is coupled to the first inverter, and a second energy source coupled to a second inverter adapted to drive the six-phase motor and the three-phase motor, wherein the second set of three-phase windings is coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.

Abstract: The present invention relates to the field of electric-motor-driven vehicles such as cars, motorcycles, scooters, electric-motor trains, etc. Embodiments of the invention seek to provide an economic all-wheel-drive (AWD) vehicle possessing high dynamic characteristics and a relatively simple scheme of control over the operation of electric motors. An AWD vehicle according to the disclosed invention contains at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit. At least one of said motors is a start-up (barring) motor and at least one is a cruise (propulsion) motor.

Abstract: An apparatus for monitoring and control of one or more electric motors, including a motor controller, equipped with a soft starter. The soft starter includes memory for storing operations and event data, as well as a human-machine interface for making the event information available for display and/or analysis. A method to monitor and diagnose a condition of an electric motor controlled by a motor controller equipped with a soft starter including a human-machine interface. A computer program for carrying out the method.

Abstract: In a servo control system, a numerical control device and at least one servo amplifier are connected to each other with a serial bus to control a servo motor connected to the servo amplifier. In this system, data transfer systems of at least two types for the serial bus are set, and a data transfer system is selected by a parameter set in the numerical control device.

Abstract: A system for control of a plurality of motors comprising: an inverter including at least three legs, with each leg including two series switching devices configured to receive a command from a controller. The system also includes a first motor operably connected to an inverter at a common terminal of the switching devices for a first leg and at a common terminal of the switching devices for a second leg; a second motor is operably connected to the inverter at the common terminal of the switching devices for the second leg and at a common terminal of the switching devices for a third leg. The outer terminals of the switching devices for each of the first leg, second leg and third leg are operably connected to the voltage source. The controller executes a process for controlling the first motor and the second motor with an error arbiter function.

Abstract: A method for changing the speed of a motor group, in particular for starting or stopping it, the motor group comprising a plurality of squirrel-cage induction motors or synchronous motors and network converters arranged for their control, when the nominal supply power (Pns), the acceleration power (Pacct) at the final speed (Vmax) of the motors and the losses (Ploss) of the used power are known.

Abstract: Disclosed is a method of driving a servo motor with a built-in drive circuit in which a common rectifying circuit is provided on a distribution board to which a plurality of the servo motors with built-in drive circuits are connected, to thereby achieve a reduction in size of each servo motor. In this method, there is used a common distribution board for distributing power to be supplied to a plurality of servo motors with built-in drive circuits and for distributing a communication line, an external communication signal and external input power are supplied through the distribution board.

Abstract: A load in an electrical apparatus is driven by two motors M1, M2. Switching means (R1, R2) switches the motors M1, M2 between: a series configuration, in which the motors M1, M2 are connected in series across a power supply and driven with a dc supply; and a parallel configuration in which the motors M1, M2 are connected in parallel across the power supply and driven with an ac supply. In the series configuration, a bridge rectifier BR is switched across the ac supply to provide the dc supply for the motors M1, M2 and in the parallel configuration, the rectifier BR is removed from the circuit. The arrangement can be used to drive a drum of a washing machine or a load in some other kind of appliance.

Abstract: A motor controlling serial communication device includes an upper controller having a first IC and a first connector, and motor drivers having second ICs, second connectors and third connectors. First cables and second cables are used for coupling the upper controller to the motor drivers, so that a daisy-chain connection is formed.

Abstract: There is provided a serial transmitting section for serially transmitting a command frame 100 which is sent from a host controller 1 to a positioning type servo amplifier 30 and a command follow-up type servo amplifier 50. In the command frame 100, an information section, into which information to be transmitted is inputted, has discrimination data for showing a selection between the positioning type servo amplifier 30 and the command follow-up type servo amplifier 50. In the positioning type servo amplifier 30 and the command follow-up type servo amplifier 50, there is provided information reading section for reading the content of an information section after the discrimination data of the command frame 100 by the discrimination data of the command frame 100.

Abstract: A motor network control system is provided which is capable of reducing the wiring length of a power cable and in which upon replacement of a motor or an inverter of a specific motor unit, no adverse influence is exerted on the other motor units. A power cable 7 and a communication cable 8 connecting between a plurality of motor units 30a-30c, each of which includes a motor 4, an inverter 5 and a communication part 6, extend successively from a power supply 1 and a network control computer 2, respectively, to the respective motor units 30a-30c in such a manner that the motor units are connected with each other in a cascade manner from a preceding one to a following one. In addition, each of the motor units includes a connection board 11 on which an inverter 5 and a communication part 6 are installed.

Abstract: A vibration motor obtains a FAST signal when r.p.m. of the motor is faster than reference speed, whereby an output-driving circuit is controlled by the FAST signal to omit parts of the powering periods of respective phases. The motor thus controls the r.p.m. and increases torque ripple generated from the motor. As a result, vibration magnitude increases and insufficient vibration due to downsizing of the motor can be compensated by the control system.

Abstract: A motor controller circuit for controlling an electric motor in response to motor commands from a host controller. The controller circuit includes a motor driver circuit for providing motor driver signals to the motor in response to motor driver commands. A control logic circuit is responsive to command words from the host controller for generating motor drive control signals, the controller has an associated motor identification, each command word having associated therewith a motor identification portion and a motor command portion. The control logic compares the motor identification portion of the command word to the motor identification, and converting the motor command portion into motor driver control signals if the motor identification portion corresponds to the motor identification. Multiple motors can be interfaced to a host controller, either in parallel or in a cascaded manner. Each motor has an unique address, and can interpret a command word and execute a command addressed to the motor.

Abstract: A mechanism controller for controlling power to motors of a mechanism having several motors, such as a robot. Each motor has a resolver for indicating the motor position. A driver unit is associated with each motor to supply power to the motor. Each driver unit includes a monitoring unit to monitor indications from the resolver of the associated motor. In one embodiment a control unit is connected to the driver units in a series circuit to control power to the motors and to receive the monitored indications from the monitoring units. In a second embodiment, the control unit is connected to the driver units in a ring circuit, rather than in a series circuit. Preferably, each driver unit also includes a memory device, and the control unit can send commands to the driver units and receive data from the driver units in sets equal in number to the number of driver units so that the commands and data do not need to include the addresses of the specific driver units.

Abstract: In a method and device for controlling several stepping motor modules in printing or copying machines, sets of ramp data are centrally calculated in a computer in a calculation phase and are transmitted via a bus system to one logic unit each in a loading phase. The ramp data are stored in the stepping motor modules in non-volatile memories and are loaded to corresponding main memories depending on operating conditions. When a stepping motor module is operational, the current set of ramp data is transmitted by a control unit. A start signal transmitted by the control unit initiates the conversion of the set of ramp data selected in the corresponding logic unit into impulses of variable distance.

Abstract: A motor control system includes a processor having a clock output terminal for outputting clock pulses in desired cycles, a plurality of motors, and a plurality of motor drivers which are provided one for each motor and drive the corresponding motors on the basis of the clock pulses input into the motor drivers through their respective clock input terminals. The clock input terminals of the motor drivers are connected to the clock output terminal of the processor in common with each other.

Abstract: At least two components that use DC power to drive at least two motors, such as DC armatures, field windings, etc., collectively referred to as DC driving devices, are connected together by switching components which can be operated to selectively connect the driving devices either in parallel or series or, in the case of more than two DC driving components, in mixed parallel and series configurations. The switching components can be solid state or electromagnetic switching components, including components that have variable resistances so as to allow continuously variable control of the series/parallel connections between the elements, and can be switched by modulation of control or trigger pulses. When the DC power driving devices are in the form of DC armatures, the series and/or parallel connection effects can also be further modulated by shunt field control of the armature currents.

Abstract: The apparatus is used for driving a mechanically-driven device in an electrical vehicle having at least one electrical traction motor. The apparatus comprises an auxiliary electrical motor mechanically connected to the device. The device is driven by the auxiliary motor when enabling conditions are not met, such as when the traction motor has a rotation speed which is slower than a pre-set rotation speed. When the proper conditions are met, the mechanical connection between the auxiliary motor and the traction motor is engaged and the auxiliary motor is electrically disconnected to save energy. The mechanical connection is disengaged when the proper conditions are no longer met. The apparatus is particularly suitable for use with a power steering pump.

Abstract: A motor braking circuit arrangement, for use with a series/universal motor and a power supply for supplying power to the motor, including two separately actuable switches electrically interconnecting a separate braking winding with the motor to effect braking when either of the two switches are deactuated. The circuit arrangement includes a field winding wound about the motor stator and electrically connected in series with the motor armature winding. The separate brake winding is wound about the stator. The two switches are series-connected, and each switch is capable of assuming a first position associated with normal motor operation and a second position associated with motor braking wherein the separate brake winding is electrically connected in parallel with the motor armature. The switches may be single-pole, double-pole or combinations thereof.

Abstract: A high pressure cleaning means is described with a preferably portable housing having a high pressure pump (6) and an electric motor drive (7) for the high pressure pump (6), the motor drive having an electric drive motor (8) with a drive shaft (9) connected to the high pressure pump (6). The motor drive (7) has at least a second electric drive motor (11) and the electric motors (8, 11, 12) of motor drive (7) are coupled to one another so as to drive the high pressure pump (6) jointly. The use of universal motors as the electric drive motors (8, 11, 12) is especially advantageous. The motor arrangement is also applicable to hand saws, water pumps, shredders, vacuums (wet/dry vacuums, leaf vacuums) and various other assemblies.

Abstract: For a traction vehicle having two wheels driven by separate electric motors, a spin/stall condition is indicated if one of the wheels is rotating faster than a predetermined reference speed while the other wheel is not rotating, and a total stall condition is indicated if neither wheel is rotating and the magnitude of motor current exceeds a predetermined high level. Correction of any spin/stall condition is attempted by temporarily connecting a power resistor across the motor driving the spinning wheel, whereupon current (and hence torque) in the motor driving the stalled wheel will increase. Once a total stall is indicated, it is allowed to continue for a maximum period of time that varies inversely with the motor current magnitude, and if such condition is not earlier corrected motor damage is avoided by deenergizing both motors on the expiration of this period.

Abstract: An electromechanical actuator includes an electric motor and a control and drive circuit mounted integrally with the electric motor. The control and drive circuit includes a serial-to-parallel converter for converting a control signal in the form of serial data into parallel data, and a device responsive to the control signal in the form of parallel data for producing a drive current or voltage for the electric motor. A system for accessing or controlling a plurality of such actuators by commands from a main controller can include a control and drive circuit which is integral with the motor itself.

Abstract: A motor control circuit is utilized to monitor and control the power to two series connected 110-120 VAC motors, to detect an imbalance between the operation of the two motors, and to remove the power to both motors if one motor operates in an abnormal manner. A reference voltage is used and compared to the voltage level at the mid connection of the series connected motors.

Abstract: An improved drive system for large mining trucks employing combined diesel/electric propulsion or the like wherein AC current generated by the alternator is rectified before powering wheel motors and wherein the wheel motors are used as generators to produce a retarding current that is directed to a resistive grid with plurality of shunting circuits thus extending the retard torque during dynamic braking and deceleration of the vehicle wherein the improvement comprises the use of silicon controlled rectifiers (SCR's) rather than contactors to achieve the desired electric circuit arrangement and in particular wherein four SCR's are used in the resistive grid to achieve a seven stage extension of the retarding torque and wherein the SCR's in the DC circuit are deactivated (opened) by back biasing with an SCR circuit that delivers AC current from the alternator to the cathode of a switching SCR in the retarding circuit.

Abstract: A traction drive system for a vehicle is disclosed which comprises a pair of series wound motors (32,34) which are connected in series with each other and which drive independent traction wheels (22,24), respectively, of the vehicle. The no-load torque of each traction wheel is correlated with the transient torque characteristic of the motors so that each motor produces a transient driving torque greater than the threshold-load torque of the wheels. Further, the no-load torque of each wheel is great enough so that the transient driving torque will not fall below the threshold-load torque during a predetermined time interval. This arrangement permits one traction wheel to move the vehicle at low speed while the other traction wheel spins on ice or otherwise fails to exhibit tractive effort.

Abstract: An electric powered vehicle or the like includes a first mechanical drive system for a first side of the vehicle and a second mechanical drive system for a second side of the vehicle. A first DC motor and a second DC motor are respectively coupled to the first mechanical drive system and the second mechanical drive system. A source of DC power is on the vehicle. The first DC motor has a first field and a first armature and the second DC motor has a second field and a second armature. The first field, the first armature, the second field, and the second armature are connected in a series circuit with the source of power. A voltage sensing relay across the first armature can detect a high voltage across the first armature to sense a loss of traction of the first mechanical drive system. A switching circuit is employed to disable the first motor from the series circuit in response to the voltage sensing relay.

Abstract: An arrangement to provide variation of the speed or other operating parameters of an electrical machine without connection to the rotor. The machine is of the induction type having a winding in separate parts to create a flux movable in the air-gap different speeds by the alteration of current in a part of the winding. In one example the current is altered by a variable impedance connected to one winding part, the other part being connected to an electrical supply.Another example, FIG. 6, shows two machines (NM.sub.1, NM.sub.2) arranged to drive a rail vehicle through smooth rail wheels attached to the machine rotor axles. A single, variable-frequency, inverter (NI) drives both machines and is connected to part (MP) of each machine winding. Other parts (AP) of each machine winding are connected together by a link (NC). In operation power (real or reactive) is transferred between the machines along the link to equalize the torque of the machines.

Abstract: Apparatus for controlling wheel slip in a locomotive driven by d.c. motors which receive power from a diesel driven generator, has sensors which provide signals representing speeds of different driven wheels to a velocity unit. The velocity unit derives a differential signal representing the difference between the highest and the lowest wheel speeds. A sensor detects current or power in the generator output and the signal from this sensor is sampled periodically and the latest two sampled values are stored. The sampled values are compared to provide a creep reference signal. The differential signal and the creep reference signal are compared and the resulting difference signal is used to control generator output to maximize current during acceleration.

Abstract: With small drive torque the motors counteract one another, with full-load output they act in the same sense upon the load, so that the backlash or play between the drive, the gearing and the load is eliminated. As the motors there are used compound motors whose armatures and shunt windings are connected in series. The series excitation currents are controlled by means of two 2-quadrant power adjustment or setting elements and the external excitation current is controlled by a 2-quadrant adjustment or setting element of small output.

Abstract: The battery energized electric motor vehicle has a main driving motor connected to the battery via a footpedal operated control circuit; an auxiliary electric motor for a steering device is connected to the battery in series with the main driving motor and across the control circuit of the latter so that a difference voltage between the battery voltage and the instant driving voltage applied to the main driving motor controls the steering device.

Abstract: Device for feeding a consumable wire electrode. Two feeding units are mounted in tandem. Each of the feeding units is provided with a pair of rolls and coupled to a direct current motor driving one of the rolls in the pair. The two motors are connected in series.

Abstract: A drive apparatus has at least two electric motors. There is also a central control common to all motors which lie in series in a closed-circuit energy supply. Each motor has an individual control unit which can be turned on and off from the central control via a control line by an address. Each motor also contains a short-circuit device lying in parallel with its connecting terminals.

Abstract: A web fed press has at least one press unit including a first web driving means driven by a first motor. Downstream from the press unit is a second web driving means, such as nip rolls, driven by a second motor. Encoders are associated with the motors to produce pulse trains which are compared for motor speed relationship. If the relationship is not correct, the energization of the second motor is varied to correct the error. The relative web speed at the two locations is adjusted by effectively varying the number of pulses per revolution produced by the encoder for the second motor.

Abstract: A speed regulator for a guide and follower motor assembly. A guide pulse frequency generator driven by a guide motor drives a frequency converter which drives a follower motor. The frequency converter includes a frequency regulator with a negative feed back which includes a frequency divider. Adjusting and setting circuits for the frequency divider include an up/down counter for operating the frequency divider, a resetting operation of the counter to provide a frequency indicating value for its output, an adjustable pulse generator for driving the counter, an add/subtract circuit, and a comparator responsive to the add/subtract circuit and the counter to control the pulse generator.

Abstract: Reproducing apparatus for magnetic tape in which the forward and rewind torques motors are series-interconnected to moderate their torques and limit the tape tension during play mode only, thereby eliminating the large heat-generating resistors required when the torque motors are parallel-connected by the conventional arrangement. Relatively small variable resistor means is provided in the power supply to the series-interconnected torque motors, enabling adjustment of tape tension in the play mode. In the specific embodiment illustrated, the variable resistor means comprises two individual resistors. Switch means selectively connects one or both resistors into the torque motor power supply circuit to keep tape tension within a predetermined range during play mode for different size tape reels.