Class / Patent application number | Description | Number of patent applications / Date published |
318051000 | Plural, diverse motor controls for different motors | 39 |
20080297073 | Electric Force Transmission Device - An electric force transmission device employs a differential device, having at least three rotating members and having two degrees of freedom that, when rotating states of two of the rotating members are determined, a rotating state of the other is determined, and in which differential device an output to a drive system is connected to the rotating member located on an inside on an alignment chart among the rotating members, two motor generators are coupled to the rotating members located on both sides of the rotating member related to the output on the alignment chart, and the drive system is driven by only a power from the motor generators. The electric force transmission device is configured so that, when the driving achieved by only the power from the motor generators is equivalent to driving started from a state of an output rotational speed of zero, before the driving is started, the two motor generators are rotated oppositely to each other, while keeping the state of the output rotational speed of zero. | 12-04-2008 |
20090121661 | Electrical control device - An electrical control device is described. | 05-14-2009 |
20090189550 | Method and Apparatus for Controlling A Plurality of Motors - Apparatus, having multiple motor modules, has an MCU module. Each motor module has an electronically controlled motor. The MCU module has an MCU and an interface for connecting to a bus from a CPU. In use the MCU module receives control signals from the CPU and in turn instructs a selected one of the motors to operate. | 07-30-2009 |
20100013419 | Parallel Motor Controller Architecture - Apparatus, methods, and computer storage media provide for the establishment of a parallel motor controller architecture and the dynamic reconfiguration of the architecture to redirect power to various motors according to the changing power load requirements of the motors. According to embodiments described herein, the present power load requirement for each motor of a group of motors is determined. The number of motor controllers to connect to each motor to provide the present power load requirement is then determined. A power switching network that connects the motor controllers to the motors is configured to connect the determined number of motor controllers to the corresponding motors. As the power load requirements of the motors changes, the power switching network is dynamically reconfigured to redirect power accordingly. | 01-21-2010 |
20100308756 | IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING MOTORS THEREOF - An image forming apparatus includes a plurality of motors, a controller which generates control signals to control the plurality of motors and output the control signals, and a plurality of motor drivers which control corresponding motors among the plurality of motors if the enable signal among the control signal is input, and does not control the motors although the common signal is input if the enable signal is not input. Accordingly, the image forming apparatus may control a plurality of motors which is not necessary to be driven at the same time using an enable signal and thus the motors may be effectively controlled with low expense. | 12-09-2010 |
20110018472 | HVAC/R SYSTEM WITH VARIABLE FREQUENCY DRIVE (VFD) POWER SUPPLY FOR MULTIPLE MOTORS - An HVAC/R system is configured with a variable frequency drive power supply which provides power to each of a compressor, a condenser fan, and a blower. In some embodiments, the compressor has a three-phase motor and the condenser fan has a single-phase motor. | 01-27-2011 |
20110018473 | HVAC/R SYSTEM WITH VARIABLE FREQUENCY DRIVE POWER SUPPLY FOR THREE-PHASE AND SINGLE-PHASE MOTORS - An HVAC/R system is configured with a variable frequency drive power supply which provides power to both a three-phase motor and to a single-phase motor. In some embodiments, the three-phase motor is a compressor motor and the single-phase motor is a condenser fan motor. | 01-27-2011 |
20110062900 | IMAGE FORMING APPARATUS, MOTOR CONTROL APPARATUS, AND MOTOR CONTROL METHOD - An image forming apparatus includes an engine unit to perform an image forming job, an engine control unit to control operation of the engine unit, a plurality of brushless direct current (BLDC) motors to operate the engine unit, a communication interface unit to receive a digital control command for the plurality of brushless DC motors from the engine control unit, a sensor unit to sense operation information of the plurality of brushless DC motors, an operation signal unit to generate an operation signal to control the plurality of brushless DC motors, and a speed control unit to control operation of the operation signal unit according to the received digital control command and sensing result of the sensor unit. | 03-17-2011 |
20110234124 | Optimized power demand control system for electrical motors - An energy conservation system that realizes optimized power demand control for alternating current electrical motors equipped with variable frequency drives is implemented by switching an electrical motor via bypass systems from a variable frequency and speed drive mode of operation to a constant frequency and speed drive mode of operation and from a constant frequency and speed drive mode of operation to a variable frequency and speed drive mode of operation. The switching from one mode of operation to another is automatically executed based on the comparative analysis of historical and current trends of the electrical motor actual power demand at variable and constant speed drive modes of operation at various loads. The system optimizes the electrical motor operation by selecting the mode with the lower magnitude of cumulative power demand for the motor and motor drive at a given motor load. | 09-29-2011 |
20110254473 | ARRANGEMENT AND METHOD FOR CONTROLLING FREQUENCY CONVERTER MODULES - An arrangement for controlling frequency converter modules of an electric drive. In the arrangement, the frequency converter modules are arranged to control alternatively a first motor or several motors having less power than the first motor. | 10-20-2011 |
20120032617 | POWER CONVERTERS - A power converter that interfaces a motor requiring variable voltage/frequency to a supply network providing a nominally fixed voltage/frequency includes a first rectifier/inverter connected to a stator and a second rectifier/inverter. Both rectifier/inverters are interconnected by a dc link and include switching devices. A filter is connected between the second rectifier/inverter and the network. A first controller for the first rectifier/inverter uses a dc link voltage demand signal indicative of a desired dc link voltage to control the switching devices of the first rectifier/inverter. A second controller for the second rectifier/inverter uses a power demand signal indicative of the level of power to be transferred to the dc link from the network through the second rectifier/inverter, and a voltage demand signal indicative of the voltage to be achieved at network terminals of the filter to control the switching devices of the second rectifier/inverter. | 02-09-2012 |
20120119683 | POWER SUPPLY DEVICE FOR ELECTRIC VEHICLE - The present invention provides a power supply device for an electric vehicle that allows highly efficient operation of a compressor inverter. A power supply device for motor vehicle | 05-17-2012 |
20120256567 | MOTOR DRIVE CONTROL SYSTEM ENABLING CONNECTION OF DIRECT CURRENT/ALTERNATING CURRENT CONVERSION DEVICE - A motor drive control system connected to an alternating current/direct current conversion circuit which converts alternating-current voltage or alternating current to direct-current voltage or direct current are provided. A control circuit controls supply or stop of the supply of the direct-current voltage or direct current from the alternating current/direct current conversion circuit to the first number of first direct current/alternating current conversion circuits and the second number of second direct current/alternating current conversion circuits while maintaining the total of the outputs of the first number of motors and the outputs of the second number of motors at a certain power not more than power which can be supplied from the alternating current/direct current conversion circuit. | 10-11-2012 |
20120299513 | VEHICLE WITH BOTH ASYNCHRONOUS AND SYNCHRONOUS ELECTRIC DRIVES - A rotary electric machine having plural rotary elements in a non-coaxial arrangement is disclosed. The rotary electric machine includes a housing assembly, at least one stator frame mounted in the housing assembly, at least one stator winding wound on the at least one stator frame, and at least two rotors mounted in the housing assembly having axes of rotation that are non-coaxial, wherein each of the at least two rotors is mechanically decoupled from the other rotors such that each of the at least two rotors rotates independent from one another. The rotary electric machine also includes a control unit, with the control unit including at least one electronic control electrically connected to the at least one stator winding. The control unit is configured to control an exchange of power to or from each of the at least one stator windings. | 11-29-2012 |
20120313558 | INVERTER, INVERTER COMMUNICATION SYSTEM, COMMUNICATION METHOD THEREOF - An inverter communication system is provided. The system includes a plurality of inverters connected to each other through a communication line, and assigned with different original identifiers for mutual distinction, wherein each of the plurality of inverters: receives a data frame transmitted through a previous inverter; selectively transmits the received data frame to a subsequent inverter; generates a data frame to be transmitted when data to be transmitted to a specific inverter occur; and transmits the generated data frame to a subsequent inverter. | 12-13-2012 |
20120319625 | MOTOR CONTROL SYSTEM - In one aspect of the present invention, a motor control system includes a rectifier module enclosed in a first flame-proof enclosure, and having a first input and one or more rectifier circuits configured to convert a first AC voltage at the first input to a DC voltage to be output to a DC bus, and one or more variable-frequency drive (VFD) modules, each VFD module being enclosed in a respective second flame-proof enclosure and having a second input coupled to the DC bus, where each VFD module includes one or more inverter circuits configured to convert the DC voltage on the DC bus to a second AC voltage to be output to one or more motors. | 12-20-2012 |
20130002172 | ELECTRIC-VEHICLE CONTROL APPARATUS - According to one embodiment, four VVVF main circuit inverters for supplying electric power to drive a permanent-magnet synchronous motor are packaged into one unit. The four VVVF main circuit inverters are configured as a 4-in-1 inverter unit which shares a cooling mechanism for radiating heat generated due to power supply operation for the permanent-magnet synchronous motors to outside. A 2-in-1 semiconductor device package in which two semiconductor elements to convert electric power are packaged into one unit to be able to drive a permanent-magnet synchronous motor is contained in the 4-in-1 inverter unit. Thereby, individual control of inverters and reducing the size of the entire apparatus can be achieved for the electric-vehicle control apparatus. | 01-03-2013 |
20130026955 | ELECTRIC MOTOR CONTROL DEVICE - First and second inverters are each controlled based on pulse width modulation using a carrier signal. In order to decrease the noise caused by the first inverter and the second inverter, a frequency of a carrier signal of the first inverter and a frequency of a carrier signal of the second inverter are controlled. The frequency of the carrier signal of the first inverter is changed periodically or randomly within a first preset frequency range as time elapses. The frequency of the carrier signal of the second inverter is changed periodically or randomly within a second preset frequency range to avoid overlapping the first frequency range. | 01-31-2013 |
20130241444 | Multi Output Inverter - The present invention relates to a multi output inverter that is adapted to supply mains powered appliances | 09-19-2013 |
20130257317 | CONTROL SYSTEMS AND METHODS FOR ELECTRIC DRIVE UTILITY VEHICLES - Electronic control systems and related control methods for controlling electric drive motors for propelling a vehicle and electric auxiliary motors for performing work, such as electric deck motors for mower blades. The apparatus is shown in use with a vehicle that includes a mowing deck. Features of the control systems allow for safe and efficient use of the vehicle. Controller assemblies and packaging for electronic control systems of electric motors utilized in utility vehicles or other power equipment are also disclosed. The controller assemblies are packaged for robust design and heat dissipation, while collectively housing the controllers, switches and sensors needed to operate multiple motors performing different functions, or the same function in serial. | 10-03-2013 |
20130293160 | MOTOR DRIVE HAVING INTEGRAL AUTOMATION CONTROLLER - A system, in one embodiment, includes a drive having a housing, a stator disposed in the housing, a rotor disposed in the stator, and a programmable logic controller disposed inside, mounted on, or in general proximity to the housing. In another embodiment, a system includes a network, a first motor having a first integral programmable logic controller coupled to the network, and a second motor having a second integral programmable logic controller coupled to the network. In a further embodiment, a system includes a rotary machine having a rotor and a stator disposed concentric with one another, a microprocessor, memory coupled to the microprocessor, a power supply coupled to the microprocessor and the memory, and a machine sensor coupled to the microprocessor. | 11-07-2013 |
20140015449 | ELECTRIC CONTROL AND SUPPLY SYSTEM - A system supplies power from an AC voltage source to an electrical device. The system includes a plurality of AC/DC voltage converters having inputs connected to the AC voltage source and outputs connected to an electrical conductor. The system also includes a plurality of DC voltage converters, each having an input side connected to the electrical conductor and an output side connected to the electrical device. A converted DC or AC voltage is supplied to the electrical device. The system also includes a data coupling device coupled to the electrical conductor. The data coupling device allows communication with the electrical device via the electrical conductor using signals associated with a first frequency range while power is supplied to the electrical device via the electrical conductor. The system further includes clocking frequencies associated with one or more of the AC/DC converters being phase shifted with respect to each other to shift clocking noise from the first frequency range to a second frequency range and clocking frequencies associated with one or more of the DC voltage converters being phase shifted with respect to each other to shift clocking noise from the first frequency range to the second frequency range. | 01-16-2014 |
20140091737 | DRIVE WITH SERVER - The present invention relates to a drive system that includes a module that operates as a server, where at least sometimes the module is at least one of directly integrated with another module that operates as a drive and fully integrated to include the drive. The server allows for communications with one or more terminals via an internet-type communications medium, while the drive is for controlling, monitoring and/or otherwise interacting with at least one motor, electromechanical machine, or other appropriate type of machine/process. In at least some embodiments, the server is capable of providing web pages, executable programs and/or other information including, for example, information in accordance with an FTP protocol onto the internet for receipt by the terminals. The terminals communicate commands and other information via the internet back to the server, which in turn can influence the drive and the controlled machine/process. | 04-03-2014 |
20140176023 | MOTOR DRIVING APPARATUS AND SYSTEM - A motor driving system includes a first driving controller, a second driving controller, a first motor, a second motor, a third motor, and a fourth motor. The first motor is electrically connected to the first output terminals of the first and the second driving controllers. The second motor is electrically connected to the third output terminal of the first driving controller and the second output terminal of the second driving controller. The third motor is electrically connected to the second output terminal of the first driving controller and the third output terminal of the second driving controller. The fourth motor is electrically connected to the fourth output terminals of the first and the second driving controllers. The first and the second driving controllers receive control signals, and drive the first, the second, the third, and the fourth motors to rotate according to the control signals. | 06-26-2014 |
20140265942 | ELECTRIC VEHICLE WITH IMPROVED ELECTRIC DRIVE SYSTEM - An apparatus includes at least one energy source and a drive system coupled to the at least one energy source. The drive system converts electrical power received from the at least one energy source and provides converted electrical power for driving at least one load. The drive system includes a first converter, a second converter, and a first switch module coupled to outputs of the first and second converters. When the apparatus is operating under a first mode, the first switch module is switched to assume a first state to allow a first output electrical power provided from the first converter and a second output electrical power provided from the second converter to be combined for driving a first load with the combined output electrical power. | 09-18-2014 |
20140285120 | System and Method for Managing DC Link Switching Harmonics - A distributed motor drive system includes a power management module and multiple inverter modules integrated with the motors and located on a machine or process remote from the power management module. The power management module distributes DC voltage and command signals to each of the inverters, where the DC voltage is distributed between modules via a DC link cable. The integrated inverters execute switching routines to convert the DC voltage to an AC voltage suitable for controlling the motor. Each of the power management module and the inverters includes a portion of the DC bus. The current on the DC link cable is monitored and general bus utilization as well as overload conditions are reported. | 09-25-2014 |
20140300295 | Electric Motors Having Modular Construction, Power Sharing and Performance Configurability - Modular motor apparatuses, systems and methods are disclosed. Certain embodiments comprise a motor core and driver module a power supply module, and an external interface module. Families of these modules may utilize a standardized communication protocol to enhance flexibility, upgradeability, and serviceability in the configuration of the motor apparatus. Certain embodiments comprise a power sharing system in which a power supply module serves two or more motor core and driver modules. Certain embodiments comprise a motor performance configuration module including an integrated or remote user interface. The user interface is configured to allow a high reliability graphical performance configuration and scaling of motor performance without the use of a computer on the motor. | 10-09-2014 |
20140333234 | MOTOR CONTROL CIRCUIT - In some preferred embodiments, a motor control circuit | 11-13-2014 |
20140346979 | CONTROL DEVICE AND CONTROL METHOD FOR VEHICULAR ROTATING ELECTRIC MACHINE - When a command frequency to a rotating electric machine is included in an inverter lock frequency band, a frequency switching section switches the command frequency to a frequency outside the inverter lock frequency band by changing a slip frequency command value. In response to this, a torque command change section changes a torque command to a second rotating electric machine other than a first rotating electric machine of which the slip frequency is changed such that a torque fluctuation caused by the change of the slip frequency command value is canceled out. | 11-27-2014 |
20140368131 | MOTOR DRIVE DEVICE - A motor drive device includes a bridge circuit | 12-18-2014 |
20150108922 | MOTOR DRIVING DEVICE FOR VEHICLE - A motor driving device for a vehicle relates to a technology for preventing motor deterioration by controlling a stall current when a motor is controlled for vehicle air-conditioning. The motor driving device includes: a stall current detector that outputs a current detection signal by detecting a stall current of a motor, a controller that pre-stores a control specification of the motor, and outputs a control signal in response to the control specification when the current detection signal is activated; and an output driver that outputs a drive signal for controlling driving of the motor in response to the control signal. | 04-23-2015 |
20150303859 | MOTOR DRIVE APPARATUS - A motor drive apparatus includes multiple inverter circuits provided corresponding, respectively, to multiple motors, a controller configured to control the inverter circuits using switching signals, a detector configured to detect a current ripple generated by switching operations of the inverter circuits. The controller operates in a first mode and a second mode. In the first mode, carrier wave frequencies of reference carrier waves used to generate the switching signals for all the motors are set to the same basic frequency. In the second mode, the carrier frequency of the motor having a higher priority is set to the basic frequency, and the carrier frequency of the motor having a lower priority is set to a preset shift frequency. When the current ripple is not less than a predetermined value, a transition occurs from the first mode to the second mode. | 10-22-2015 |
20150311832 | SYSTEMS AND METHODS FOR THE CONTROL AND OPERATION OF A PARALLEL MOTOR CONTROLLER ARCHITECTURE - A method for real time power control over a plurality of motor controllers by at least one processor on a computer system may include determining a power load demand from a first set of motors, selecting a combination of motor controllers to match the power load demand, assigning a first set of system-wide priorities, configuring a power switching network to connect the first set of motors to the motor controllers, receiving from a control unit a power request for a motor, determining a priority designation for that motor, assigning a second set of system-wide priorities, determining a second power load demand from a second set of motors, wherein the second plurality of active motors comprises the first plurality of active motors and the first motor, selecting a second combination of motor controllers necessary to match the second power load demand, and configuring the power switching network in accordance with the second set of system-wide priorities. | 10-29-2015 |
20150311833 | GENERAL-PURPOSE DESIGN OF DC-AC INVERTERS IN ELECTRIFIED AUTOMOBILE SYSTEMS - A general purpose DC-AC inverter in an electrified automobile system provides DC-AC inverter control based on different types of the motors. The DC-AC converter is configured to convert a voltage from a primary battery system of the EV to different voltage/current waveforms. One controller controls different types of motors without changing the firmware. Sensorless control is also achieved based on the same firmware. | 10-29-2015 |
20150349674 | MULTIAXIAL DRIVING APPARATUS - A part of bus-voltage smoothing capacitors within a multiaxial driving apparatus is usable as a power-assisting electric storage device for storing regenerative power. This makes it unnecessary to additionally provide a power-assisting electric storage device, which has been required in order to obtain a power-assist function. Therefore, the multiaxial driving apparatus can be obtained, which is equipped with the power-assist function of achieving effective use of regenerative power easily at low cost without resulting in an increase in complexity and high cost. | 12-03-2015 |
20160006388 | MOTOR DRIVE DEVICE - A motor drive device is provided which is able to reduce loss between a drive power source and a controller. The motor drive device includes a plurality of motors, a single drive power source which drives these motors, and a controller which controls energizing times during which motor coils of the plurality of motors are energized, by a PWM drive method. The controller includes phase shift portion which sets a PWM signal for causing a current to flow to the motor, into a phase different per motor. By the phase shift portion setting the PWM signal for causing a current to flow to the motor into a phase different per motor, so-called overlap of energizing times of currents is avoided. | 01-07-2016 |
20160043668 | RATE-OF-CHANGE SWITCHES AND CONTROLLABLE APPARATUS - A method includes user actuating X and Y transducers ( | 02-11-2016 |
20160056751 | MOTOR CONTROL CIRCUIT - In some preferred embodiments, a motor control circuit | 02-25-2016 |
20160059711 | MULTI-LINK POWER-SPLIT ELECTRIC POWER SYSTEM FOR AN ELECTRIC-HYBRID POWERTRAIN SYSTEM - A powertrain system includes a multi-link power-split electric power system including first and second electric machines. The first electric machine mechanically rotatably couples to a drive wheel and the second electric machine mechanically rotatably couples to an internal combustion engine. The first electric machine electrically connects in series between first and second inverters. The first inverter electrically connects to a first high-voltage DC electric power bus and the second inverter electrically connects to a second high-voltage DC electric power bus. The second electric machine electrically connects to a third inverter that electrically connects to the second high-voltage DC electric power bus. | 03-03-2016 |