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| Number | Title | Issue Date |
| 8179060 | Motor controller for controlling an electric motor A motor controller for controlling at least one electric motor has an operating signal generator for generating an operating control signal for the at least one electric motor and also a sound signal generator for generating a sound control signal. A mixer superimpo... | 05/15/2012 |
| 7723930 | Method and system in connection with tension measurement of material web Method and system in connection with a motor operated tension measuring roll (1) for compensating an error in tension measuring of a continuous material web, the method comprising defining the tension Tmeas of a material web (4) by a force s... | 05/25/2010 |
| 7710056 | Brushless DC motor and electric apparatus mounting it Current control circuit controls an output voltage of DC power supply so as to increase current passing through inverter circuit as the motor increases its the speed. The control offers an RPM—torque characteristic of the motor in which torque increases as the RPM... | 05/04/2010 |
| 7605551 | Controller for motor A controller for a motor cleans, as necessary, a hydraulic chamber that generates hydraulic oil for changing a phase difference between two rotors so as to restrain sludge from building up in the hydraulic chamber. A motor has a first rotor and a second rotor that c... | 10/20/2009 |
| 7375478 | Servo drive with high speed wrapping function A servo drive with high speed wrapping function is applied for servo control of wrapping wire and method for the same. The servo drive includes a wrapping mechanism, a rotation control unit for controlling rotation of the wrapping mechanism, a lateral motion control... | 05/20/2008 |
| 7372219 | Belt driven centrifugal separator with multi-stage, belt deterioration alerting display In a centrifugal separator of the type in which driving power of a motor is transmitted to a rotor via a power transmission mechanism, such as a belt, a motor-rotation signal frequency fm and a rotor-rotation signal frequency fr are computed, on the basis of which a... | 05/13/2008 |
| 7353896 | Wheel provided with driving means A traction assembly includes a wheel comprising a wheel shaft and traction means which, when in operation, exert torque on the wheel shaft, wherein the traction ratio, being the arm of the torque divided by the size of the radius of the wheel, is larger than 0.57. | 04/08/2008 |
| 7331383 | Shore power system including a HVAC system A shore power HVAC system for a vehicle is provided. The vehicle has a vehicular HVAC system with an engine compressor, a condenser, and an expansion valve and an evaporator coupled to each other in series by a plurality of conduits. The shore power HVAC system incl... | 02/19/2008 |
| 7293524 | Indicator device for indicating whether a no-back device is operable An indicator device for use in indicating whether or not a no-back device is operable, the indicator device comprising an indicator member 42 moveable between a first position and a second position, a biassing arrangement 56 being provided to urge the ... | 11/13/2007 |
| 7287582 | Shore power system including a HVAC system A shore power HVAC system for a vehicle is provided. The vehicle has a vehicular HVAC system with an engine compressor, a condenser, and an expansion valve and an evaporator coupled to each other in series by a plurality of conduits. The shore power HVAC system incl... | 10/30/2007 |
| 7277967 | Method and apparatus for suspending or adjusting billing charge for usage of electrically powered devices if abnormal or halt condition detected An apparatus for selecting, monitoring, and controlling electrically powered devices is disclosed. In one embodiment, the apparatus includes an electrically powered device having a key operating line and switching control circuitry to control usage of the electrical... | 10/02/2007 |
| 7265473 | Reduction of core-end losses of dynamoelectric machines by using lower core loss iron silicon punching Electric machines can be improved or uprated to reduce core-end losses using lower core loss material such as high grade iron silicon. A machine uprating entails removing at least a last one of the stacked lamination packages at each end of the stator core, and re-s... | 09/04/2007 |
| 7233122 | Self-running robot having pressing sensing function and control method thereof Disclosed is a pressing sensing technology of a self-running robot, comprising a pressing sensing unit for sensing pressing on the top of the self-running robot and a microprocessor for controlling driving of the self-running robot in accordance with the sensing sig... | 06/19/2007 |
| 7227319 | Method for driving a machine and drive for said machine A drive system for a machine, in particular a weaving machine, is designed in a manner such that controlled electric power is applied to a rotary electric drive motor (2) as a function of particular angular positions of the motor and such that electrical ener... | 06/05/2007 |
| 7221113 | Touch-sensitive model train controls A model vehicle control apparatus. A button controls an aspect of the model vehicle system, or multiple aspects, such as both sound and control. The button is configured to provide more than two outputs depending upon the manner of activation by a user based on pres... | 05/22/2007 |
| 7221115 | Method and apparatus for controlling multiplexed motors A control for stopping the rotation of the output shafts of a plurality of multiplexed motors configured in columns and rows with the first connector of each motor in a given column connected in parallel and with the second connector of each motor of a given row of ... | 05/22/2007 |
| 7176643 | Motor control apparatus Before an amount of play in a rotation transmitting system is learned, for selecting a gear range, an overshooting control process is performed to cause the angular displacement of a motor to overshoot a target gear range position and then reverse the electric motor... | 02/13/2007 |
| 7154242 | Moving member mechanism and control method therefor A moving member mechanism includes an electromagnet having a coil for driving a moving member, a first control mechanism which has an input portion which receives command information and an amplifier which supplies a current to the coil, and an offset compensation m... | 12/26/2006 |
| 7143204 | Method and apparatus for suspending or adjusting billing charge for usage of electrically powered devices if abnormal or halt condition detected An apparatus for selecting, monitoring, and controlling electrically powered devices is disclosed. In one embodiment, the apparatus includes an electrically powered device having a key operating line and switching control circuitry to control usage of the electrical... | 11/28/2006 |
| 7132807 | Model train direction control device A model train on-board microprocessor provides basic lighting and motor operation and control. A socket provides a seamless instant remote control upgrade using industry standard remote control devices. The device provides new and useful functions and features for m... | 11/07/2006 |
| 7119470 | Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machine A magnetic gap is provided between a permanent magnet of a rotor and an auxiliary magnet pole portion which is arranged adjacent to the permanent magnet in a peripheral direction. A gradual change in a magnetic flux density distribution of a surface of the rotor is ... | 10/10/2006 |
| 7116008 | Electrical communication system for a bicycle A bicycle signal processing device includes a first bicycle signal processing element that generates a first signal having a first impedance, an external output terminal having an exposed output contact surface, and an impedance converting circuit coupled between th... | 10/03/2006 |
| 7075266 | Apparatus for controlling an a. c. motor A method controls a torque of an a. c. motor which does not cause a shortage of torque by using an economical current detection which estimates d- and q-axis currents Idc, Iqc from d. c. current IDC flowing through an input d. c. bus line of a power converter. A val... | 07/11/2006 |
| 7026780 | Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch... | 04/11/2006 |
| 7015598 | Power control apparatus for a bicycle A power control apparatus for a bicycle that uses a first power supply and a second power supply to provide electrical power includes a voltage sensor for sensing a voltage from the first power supply. A control unit is coupled to the voltage sensor and is coupled f... | 03/21/2006 |
| 6998812 | Method for determining the mass moment of inertia of an electric motor drive system A method for determining the mass moment of inertia of an electric motor drive system of a machine, having a drive motor and further drive elements arranged downstream of the drive motor. The method includes a) determining a compensation current, which compensates l... | 02/14/2006 |
| 6979258 | Point contact valve seats for film applications In a ventilation system of a motor vehicle, a film valve can selectively open and close an air path opening defined by a housing with a rib or projection that encircles such opening. The rib can define a point contact between the film valve and the housing when view... | 12/27/2005 |
| 6945324 | Controlling method for the discharge of coolant medium in the heat exchange wind box The invention relates to a controlling method of the discharge of coolant medium, and more particularly to a controlling method of the discharge of coolant medium in the heat exchange wind box. By mainly controlling the discharge of coolant medium in the heat exchan... | 09/20/2005 |
| 6943513 | Force-applying input device A force-applying input device includes a controller including a first rotational angular speed calculating unit for calculating rotational angular speed information of an operation unit by signal pulse output from an encoder, a rotational angular acceleration calcul... | 09/13/2005 |
| 6943509 | Rotor speed control device and method Kinetic energy of a rotor is substantially prevented from exceeding a predetermined amount of kinetic energy by determining a first kinetic energy of the rotor spinning at a first rotational velocity and determining whether the first kinetic energy exceeds the prede... | 09/13/2005 |
| 6936982 | Device for actuating a plurality of electric motors Device for actuating a plurality of actuators (1) in a transportation device, which has a plurality of output stages (2, 3, 4, 5) and a control circuit for actuating the output stages (2, 3, 4, 5), the output stages (2, 3, 4, 5) each conn... | 08/30/2005 |
| 6914410 | Electric differential traction-control drive system In an electrical drive system, an electric differential comprises a first rotor for driving a first drive wheel, a second rotor for driving a second drive wheel, the first and second rotors capable of independent relative rotation, and a common stator for driving th... | 07/05/2005 |
| 6894447 | Electrically actuated slide room extension A system for extending and retracting expandable rooms in vehicles. The system employs linear actuators that can be mounted laterally to the direction of movement of the room when it is expanded or extended. In order to provide for extending and retracting the room,... | 05/17/2005 |
| 6882909 | Method and system for reducing motor shock of a hybrid vehicle The method for reducing motor shock of a parallel hybrid electric vehicle equipped with a continuously variable transmission calculates an upper limit of acceleration and an upper limit of jerk of the vehicle based on vehicle speed; calculates a maximum motor torque... | 04/19/2005 |
| 6858999 | DC brushless motor control apparatus Drivers (12a,12b) drive respective DC brushless motors (8a, 8b) having rotor position detecting Hall-effect devices. A CPU (18) detects the numbers of rotations of the respective motors (8a, | 02/22/2005 |
| 6812655 | Induction actuated container An induction actuated container includes a container body, a container cover, a drive and an induction element. The drive includes a driven operating member and a driving member. The induction elements includes a sensor and an actuating controller for the driving me... | 11/02/2004 |
| 6753663 | Electric motor controlled as an electroacoustic transducer An appliance for personal use such as a toothbrush, an oral irrigator, a shaver, or a kitchen machine, with a driving mechanism constructed as an electric motor and a control stage that supplies energy to the electric motor. When the electric motor is off, the contr... | 06/22/2004 |
| 6737819 | Motor retractor system A motor retractor system includes a first winding device having a motor for driving a shoulder belt in a winding direction, and a second winding device having a tension-applying device for always applying a tension in a winding direction to a lap belt extending from... | 05/18/2004 |
| 6653804 | Method and apparatus for controlling a bucket hoist using a flux vector AC drive A dual hoist bucket crane controller for operating a closing motor and a holding motor using a close inverter adapted to control the closing motor and a hold inverter adapted to control the holding motor where the hold inverter and the close inverter are ... | 11/25/2003 |
| 6642688 | Throttle and AC motor control throughout shifts of multi-speed transmissions The problem of losing throttle control when controlling an AC motor throughout transmission shifts has been solved for a finite set of discrete waveforms. The solution requires making as many discrete speed waveform tables as there are gear ratios in the ... | 11/04/2003 |
