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| Number | Title | Issue Date |
| 8154234 | Reliable drive cut off device A protective device enables reliably cutting a drive region off the power supply of a guided vehicle. The drive region is connectible to the power supply via at least one drive region switch and it comprises stator sections that are strung together. The sections are... | 04/10/2012 |
| 8148924 | Electrical motor load controller and control methods therefor An electrical load controller that controls the starting sequence for a plurality of electrical loads includes a start demanding unit that generates a demand to start at least one of the plurality of electrical loads. A first electrical load is started immediately i... | 04/03/2012 |
| 8125164 | 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 ... | 02/28/2012 |
| 8115423 | Motor driving system and controlling method of the same A plurality of current sensors are provided to correspond to a plurality of inverter circuits for driving a plurality of motor generators, respectively. Zero point adjustment of each current sensor is executed in a non-energized state recognized based on a stop of o... | 02/14/2012 |
| 8084967 | Motor controller and printer A motor controller is provided. The motor controller includes a motor drive unit that drives a plurality of motors; a thermal shutdown unit that is provided in the motor drive unit and that stops the plurality of motors in the case of an overload; a lock signal gene... | 12/27/2011 |
| 8058823 | Actuator system with a multi-motor assembly for extending and flexing a joint An actuator system for extending and flexing a joint, including a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism for converting the rotational output from the multi-motor assembly into an extension and flexion of the joint, and ... | 11/15/2011 |
| 8040081 | Motor drive apparatus, hybrid drive apparatus and method for controlling motor drive apparatus If any short-circuit failure occurs in an inverter, then a motor generator is used to execute a safety driving. If the rotational speed of a motor generator calculated from a detection value of a position sensor exceeds a predetermined reference rotational speed dur... | 10/18/2011 |
| 8026678 | Motor control device A motor control device includes at least one operating unit that is provided corresponding to at least one motor to operate the at least one motor, and a control unit that, each time at least one control cycle arrives in which the at least one motor is operated, set... | 09/27/2011 |
| 7859200 | Mutually cross-interlocked multiple asynchronous AC induction electrical machines 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 electric... | 12/28/2010 |
| 7847494 | Drive unit, preferably an actuator, a control and a construction In particular in articles of furniture having at least an element which may be adjusted with a DC motor, preferably via a mechanical transmission, it is desirable to have a level of acoustic noise as low as possible. The power supply to the DC motor is based on a tr... | 12/07/2010 |
| 7834567 | Motor drive device A motor drive device for alternately driving a plurality of motors includes a position detection signal processing circuit for processing position detection signals of the plurality of motors, a pre-drive circuit for generating an excitation switching signal of the ... | 11/16/2010 |
| 7834563 | Dynamic antenna control in a wireless communication system The present invention provides a method for controllably moving a plurality of antennae in a wireless communications system. The method comprises activating a first and second actuator associated with a first and second one of the plurality of antennae to move the f... | 11/16/2010 |
| 7741792 | Motor control device A motor control device includes: a motor that has a plurality of rotors which respectively have a magnetic piece, which drives or supplementarily drives a vehicle; a phase changing mechanism that changes relative phases of the plurality of rotors, and sets these to ... | 06/22/2010 |
| 7737645 | Electronic tripping unit for a motor-circuit breaker of an electric motor An electronic trip unit for a motor circuit breaker of an electric motor includes at least one detection unit configured to sense at least one current that is delivered to the electric motor. The unit further including a discriminator circuit, the discriminator circ... | 06/15/2010 |
| 7719214 | Method and apparatus for controlling motors of different types In order to reduce the time and expense of designing and operating a motor control system with multiple motors of different types, a motor control system is provided with motor control modules that monitor and record status information and update settings in a unifo... | 05/18/2010 |
| 7589481 | Control device integrated dynamo-electric machine In order to improve reliability, cost performance, and cooling property, a control device integrated dynamo-electric machine mounted to a dynamo-electric machine includes an inverter bridge configured with a plurality of semiconductor switching elements, and a plura... | 09/15/2009 |
| 7583038 | Motor-driving circuit and recording apparatus including the same A motor-driving circuit drives a plurality of motors of different types. The motor-driving circuit includes a plurality of H-bridge circuits for outputting driving signals to the motors, a controller for controlling the plurality of H-bridge circuits, a setting sect... | 09/01/2009 |
| 7583037 | Mobile storage unit with holding brake and single status line for load and drive detection The present invention is a mobile storage unit including an electric motor operably connected to wheels movably supporting the unit, and a motor brake operably connected to the electric motor. A shaft is rotatably mounted to the unit and supports the wheels on which... | 09/01/2009 |
| 7569999 | Motor control device A motor control device has a target speed generating unit for generating a generated target rotational speed, speed detecting units for detecting rotational speeds of each of the plurality of motors, an average speed calculating unit for averaging the detected rotat... | 08/04/2009 |
| 7538500 | Position detection and external driver multiplexing system for DC motors A system and method is provided for improved monitoring and controlling of mechanically commutated DC motors. The system and method include DC motors, pulse-count driver circuitry for driving the motors, motor position sensing circuitry, and motor control circuitry.... | 05/26/2009 |
| 7535186 | Methods and systems for controlling operation of electronicallly commutated motors A method for resolving addressing conflicts between multiple electronically commutated motors communicatively coupled to a system controller is described. The method includes sending a command, from the system controller, to an address and determining, based on resp... | 05/19/2009 |
| 7518322 | Operation circuit for a work vehicle An operation circuit for a work vehicle drives an electromagnetic actuator by generating an operation signal corresponding to a switch operation and drives a work actuator in response to the drive of the electromagnetic actuator. By installing a specific detachable ... | 04/14/2009 |
| 7508145 | Multiple simultaneous aisle access control for a mobile storage system A mobile storage system includes movable storage units that can be positioned to selectively form an aisle between adjacent storage units. The storage units define a maximum aisle space that forms a single aisle between an adjacent pair of storage units, or a number... | 03/24/2009 |
| 7489092 | Method and apparatus for enhanced alert notification A system, fan controller and method for enhanced alert notification. Embodiments provide an effective mechanism for utilizing system fans to create alert tones or messages, where fan speed differentials may be adjusted to alter the frequency of the fan interference ... | 02/10/2009 |
| 7468587 | All wheel drive vehicle 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 characteristi... | 12/23/2008 |
| 7446491 | Intelligent power management for actuators A system and method is disclosed for intelligent power management of actuators such as those used in papermaking. Multiple power supply units are connected to a common power bus. The power bus is connected at predetermined locations to a communications bus. The comm... | 11/04/2008 |
| 7439695 | Mechanical braking system for use on a vehicle having an electric propulsion system and automatic retard speed regulation A mechanical braking system is provided for a vehicle having an electric propulsion system which is utilized for retard speed regulation. While the retard speed regulation is normally performed via electric braking, in some conditions the electric braking is not abl... | 10/21/2008 |
| 7432674 | Control system A transmission path delay is set in a shift setting register. A slave unit generates a PRE_ITP signal in response to a timing signal (ITP signal) issued by a master unit. The phase difference between this PRE_ITP signal and the ITP signal unique to the slave unit is... | 10/07/2008 |
| 7417386 | Electronic line shaft A method and assembly for synchronizing machine operations, the assembly comprising a reference generator for generating a speed reference signal and a position reference signal, a plurality of slave units, each slave unit including, a mechanical device, a separate ... | 08/26/2008 |
| 7394629 | Motor overload tripping system and method with multi-function circuit interrupter A technique is provided for controlling operation of motors of different sized or ratings. Components used to apply and interrupt current to the motors may be shared in control devices for the different motors. The components may include contactors or circuit interr... | 07/01/2008 |
| 7391173 | Mechanically decoupled capstan drive A capstan drive includes a first capstan that moves a device on a carriage and a second capstan that receives a second rotary motion to move the carriage. A first power transmission has a driven shaft coupled to the first capstan, a first drive shaft coaxial with th... | 06/24/2008 |
| 7388344 | Multichannel pulse train transmitting apparatus In the multi-shaft driving apparatus, position command pulse trains for servomotors are generated from a motor controller and supplied to motor drivers for the respective servomotors via a multichannel pulse train transmitting apparatus. The multichannel pulse train... | 06/17/2008 |
| 7365504 | Motor having multiple independent armature winding sets A motor is provided that includes multiple sets of independent stator windings that are not magnetically coupled, which allows the motor to be driven by multiple independent current drivers, and thereby increases the overall torque generated by the motor. In one emb... | 04/29/2008 |
| 7357204 | Drive-control system of electromotive vehicle and drive-control-method of electromotive vehicle A drive-control-system of electromotive vehicle and drive-control-method of an electromotive vehicle. A system has a condition-determination-process unit that reads a vibration index as a factor causing vibration in the vehicle-drive-system, and determines whether a... | 04/15/2008 |
| 7355358 | Configurable H-bridge circuit In an implementation of a configurable H-bridge circuit, a high switch is connected to a voltage source and a low switch is connected to ground. The configurable H-bridge circuit includes a first configuration as a motor drive circuit in which the high switch and th... | 04/08/2008 |
| 7347167 | Method for controlling cooling fans A method for controlling a cooling system for an internal combustion engine having first and second cooling fans is provided, comprising operating the first cooling fan at a first rotational frequency which is greater than a combustion frequency of the internal comb... | 03/25/2008 |
| 7341535 | Hybrid transmissions having three motor/generators and a stationary planetary gear member The electrically variable transmission family provides low-content, low-cost electrically variable transmission mechanisms including first, second and third differential gear sets, a battery and three electric machines serving interchangeably as motors or generators... | 03/11/2008 |
| 7337863 | Circuit arrangement for the control of at least one electric machine The objective of providing a circuit arrangement for the control of at least one electric machine (1), which is suitable for also enabling operating conditions of the electric machine (1) that demand high power-peaks of short duration, is essentially a... | 03/04/2008 |
| 7337036 | Three-way connector for connecting weft feeders of textile machines to a serial bus, and a control system based thereon The three-way connector comprises a first, a second and a third gates directly connected to one another. The first and second gate are pluggable onto respective spans of a bus, and the third gate is connectable to a weft feeder. The three-way connector further compr... | 02/26/2008 |
| 7332881 | AC drive system for electrically operated vehicle A drive system for an electric vehicle includes a motor for providing a drive torque and an electrically actuated brake for providing a braking torque to the motor. The system includes a controller that receives a plurality of inputs which may include a battery volt... | 02/19/2008 |
