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| Application No. | Application Title | Issue Date |
| 20120109444 | FUEL CELL SYSTEM AND CONTROL METHOD OF SAME Provided are a fuel cell system and a control method thereof capable of inhibiting the occurrence of problems caused by surplus electrical power even in cases where the torque able to be generated by the motor is limited due to a low motor drive voltage. A fuel cell sys... | 05/03/2012 |
| 20120001002 | Drive Circuit with Integrated Power Factor Correction for Blender/Shaver Machine Embodiments of the invention provide a machine that blends liquids and/or shaves ice. The machine includes a motor and a control system with an integrated power factor correction circuit and a drive circuit. The integrated power factor correction circuit receives input ... | 01/05/2012 |
| 20110297475 | MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE A motor control device and an electric power steering system that make it possible to suppress occurrence of voltage saturation with a simple configuration are provided. A current limiting value computing unit computes a current limiting basic value of which the value i... | 12/08/2011 |
| 20110276230 | Method for operating a power steering mechanism A method is disclosed for operating a power steering system in which a motor torque is computed by an electronic processor and established by suitable motor actuation, wherein a plausibility check is carried out for the computed motor torque as part of a 3-level design,... | 11/10/2011 |
| 20110260667 | POWER CONTROL ON A MULTI-MOTION ELECTRIC DRIVE SYSTEM A motor control system for controlling two or more motor groups includes a power converter that receives power from a power source and converts the power to an intermediate power and an intermediate power link coupled to the power converter. The motor control system als... | 10/27/2011 |
| 20110254492 | SYSTEM HAVING A VARIABLE FREQUENCY POWER DISTRIBUTION BUS FOR DRIVING A VARIABLE SPEED MOTOR A system and method for supplying power to a variable speed motor for rotating a shaft may include generating an A/C output having a variable frequency corresponding to speed of a prime mover, where the speed of the prime mover is equal to or greater than a predetermine... | 10/20/2011 |
| 20110213518 | SYSTEMS AND METHODS FOR MANAGING TORQUE CAPABILITY IN ELECTRIC MOTOR SYSTEMS A method for operating an electric motor is provided. The method includes receiving a torque request; determining long term torque capabilities and short term torque capabilities of the electric motor; generating a torque command based on the torque request and at least... | 09/01/2011 |
| 20110080128 | FAN SYSTEM CIRCUIT MODULE A fan system circuit module including a stable voltage input terminal for receiving a stable voltage, an operation unit electrically connected to the stable voltage input terminal and a drive chip. The operation unit includes a first resistor, a second resistor, a first... | 04/07/2011 |
| 20110050141 | ELECTRIC MOTOR STATOR WINDING TEMPERATURE ESTIMATION A temperature estimation controller and methods are provided for estimating stator winding temperature over a full range of motor operating speeds. In one implementation, the angular velocity of a motor is determined along with a total power loss for each phase of said ... | 03/03/2011 |
| 20110031920 | CONTROLLER AND METHOD FOR ESTIMATING, MANAGING, AND DIAGNOSING MOTOR PARAMETERS A motor control system includes a control module, a switching module, and a filtering module. The control module determines output voltages for operating a motor based on a torque demand. The switching module generates switching signals for an inverter that drives the m... | 02/10/2011 |
| 20110005689 | MOTOR CONTROL SYSTEMS, FOLDABLE PARTITIONS EMPLOYING MOTOR CONTROL SYSTEMS, METHODS OF MONITORING THE OPERATION OF ELECTRIC MOTORS AND FOLDABLE PARTITIONS Motor control systems comprise a motor control circuit, a processing circuit operably coupled to the motor control circuit, and a current sensor operably coupled to the processing circuit. The current sensor may be configured to sense a current and to convey a signal to... | 01/13/2011 |
| 20100320951 | INVERTER DEVICE, ELECTRIC AUTOMOBILE IN WHICH THE INVERTER DEVICE IS MOUNTED, AND HYBRID AUTOMOBILE IN WHICH THE INVERTER DEVICE IS MOUNTED A torque limit section that applies limit to a torque instruction value of an electric motor such that a switching elements temperature is restricted to no more than an element upper limiting temperature includes a torque restriction section that finds a torque restrict... | 12/23/2010 |
| 20100283420 | FAN ARRANGEMENT IN WHICH THE CONSUMED ELECTRIC POWER IS INFLUENCED A fan arrangement (20) has a fan (24) driven by an electric motor (22). It further has an apparatus for continuously detecting an actual electrical value associated with the electric motor (22) during operation, an input apparatus for inputti... | 11/11/2010 |
| 20100276929 | SYSTEM AND METHOD FOR DETERMINING THE TEMPERATURE OF A PERMANENT MAGNET IN A MACHINE A system for determining a temperature of a permanent magnet in a machine includes a voltage sensor that generates a voltage signal reflective of a stator voltage and a current sensor that generates a current signal reflective of a stator current. A processor receives t... | 11/04/2010 |
| 20100244757 | Current Limit Control Method of DC Motor and Related Device and Circuit A control method of a current limit of a DC motor includes generating a reference voltage according to a preset current limit value of a DC motor; comparing the reference voltage with the voltage drop of a power control switch which drives the DC motor to generate a com... | 09/30/2010 |
| 20100214709 | METHODS AND SYSTEMS RELATING TO OVERCURRENT CIRCUIT PROTECTION Systems and methods for providing overcurrent circuit protection are disclosed. A method of providing overcurrent circuit protection may include setting a threshold current value according to an operational state of a motor and sensing an amount of current being supplie... | 08/26/2010 |
| 20100201293 | ROTARY ELECTRIC MACHINE CONTROL SYSTEM A rotary electric machine control system includes a battery electric power calculation unit for calculating battery electric power that is supplied from the battery; a torque limitation unit for limiting an output torque of the rotary electric machine; and a battery ele... | 08/12/2010 |
| 20100181769 | MOTOR LOAD REDUCTION IN A WIND POWER PLANT A wind power plant is characterized in that a measurement device (18) is provided for the determination of the load on an electric motor (13, 14), wherein the control device (16, 17) reduces the load on the motor (13, 14) by reducing the rota... | 07/22/2010 |
| 20100151988 | CONTROLLER OF DRIVE DEVICE FOR VEHICLE A control device is provided for a vehicular drive apparatus, having a differential mechanism and a transmission, for miniaturizing the differential mechanism and/or providing improved fuel economy while preventing a busy shift. With the provision of a switching clutch ... | 06/17/2010 |
| 20100141194 | Pump Controller System and Method Embodiments of the invention provide a method of detecting a fault condition in a motor of a pump. The method includes sensing a first current value and a speed of the motor, attempting a recovery operation if the first current value is greater than a current threshold ... | 06/10/2010 |
| 20100141186 | ELECTRIC TOOL AND DEVICE SWITCH FOR AN ELECTRIC TOOL The invention relates to a device switch for an electric tool, in particular a battery-operated electric tool. A power circuit for supplying power of a motor and an electronic circuit for monitoring the temperature, power and current is integrated into the device switch... | 06/10/2010 |
| 20100109590 | DRIVING DEVICE AND PROTECTION METHOD THEREOF A driving device includes a motor, a first rotating portion, a second rotating portion, a piezoelectric assembly, and a controlling unit. The motor includes a rotating shaft. The first rotating portion is fixed to the rotating shaft. The second rotating portion is engag... | 05/06/2010 |
| 20100114415 | INDUSTRIAL TRUCK COMPRISING A SYSTEM FOR DETECTING SPINNING OR LOCKING OF THE DRIVE WHEEL An industrial fork lift truck comprising an electric motor (3), a motor controller (2) for controlling the electric motor (3) and a truck computer (1) for controlling the motor controller (2), said truck computer (1) comprising ... | 05/06/2010 |
| 20100102763 | HYBRID WORKING MACHINE In a hybrid excavator, a generator motor and a hydraulic pump are driven by using an engine as a power source. A battery is charged with power generated by the generator motor. A rotation motor is driven by the generator motor and the battery. The voltage of a DC bus is... | 04/29/2010 |
| 20100097024 | DRIVE SYSTEM FOR MULTIPLE MOTORS A drive system for multiple motors includes a first motor, a second motor, a motor drive power supply for supplying power to the first and second motors, a first motor drive amplifier, a second motor drive amplifier, a first overcurrent detection apparatus, and a second... | 04/22/2010 |
| 20100097732 | Method and apparatus for limiting torque in an electric drive motor A method (100) is provided for controlling torque of an electric motor (12) including the step (106) of supplying drive current to drive the electric motor. The speed of the electric motor is monitored (108) and from the monitored speed, it i... | 04/22/2010 |
| 20100066289 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRIC MOTOR A method for controlling an electric motor includes receiving a first control command that is indicative of a desired motor control. A current operating condition for the motor is determined. It is then determined whether the first control command meets at least one pre... | 03/18/2010 |
| 20100066288 | Over-voltage and under-voltage management for electric drive system A method of voltage supply management for an electric drive system includes receiving a voltage signal (1002) indicative of a voltage in a supply link, and one or more condition signals that are indicative of an operating condition of the electric drive system. A... | 03/18/2010 |
| 20100066290 | VOLTAGE PROTECTING APPARATUS A voltage protecting apparatus is used for detecting voltage of a motor driver, and adjusting the voltage of the motor driver when at an over-voltage state. The motor driver includes a direct current (DC) power source and a power board. The voltage protecting apparatus ... | 03/18/2010 |
| 20100052588 | VEHICLE CONTROLLER AND CONTROL METHOD By the vehicle controller of the present invention, when the economy mode is selected by a driver, boosting by a converter is limited and output torque of a motor is limited. Even in the economy mode, however, if the driver requests large torque, either the limit on boo... | 03/04/2010 |
| 20100045224 | ELECTRIC VEHICLE CONTROL DEVICE When an electric vehicle outputs a torque instruction, firstly, a request torque is acquired and a judged whether the acquired request torque is positive or negative (S10) Regardless of the sign of the request torque, it is judged whether the eco-switch is ON (S<... | 02/25/2010 |
| 20100045225 | Mirror Adjustment Mechanism, Wing Mirror Unit and Method An electric motor circuit for controlling an electric motor of a mirror adjustment mechanism includes a switch-off circuit that is provided with a current sensor for measuring the electrical supply current and, depending thereon, generating a voltage. In an embodiment, ... | 02/25/2010 |
| 20100039057 | ANTI-PINCH METHOD AND DEVICE FOR CONTROLLING AN OPENABLE AND CLOSABLE BODY In an anti-pinch method and device for controlling an openable and closable body, a driving circuit operatively drives a motor with a driving current to move the body relative to a frame body between closing and open positions. A current sensor generates a sensing signa... | 02/18/2010 |
| 20100027170 | ELECTRIC VEHICLE An electric vehicle includes a control unit having overcurrent generation judgment unit, inverter selection unit, and inverter drive control unit. The overcurrent generation judgment unit judges whether an overcurrent is generated in an inverter for generation or an inv... | 02/04/2010 |
| 20100019712 | ELECTRIC DRIVER UNIT An electric driver unit for an electric valve timing adjusting apparatus is disclosed. The electric driver unit includes: a motor for driving the apparatus; a switching part for applying a drive voltage to the motor; a current information output part for providing curre... | 01/28/2010 |
| 20100001674 | Method for activating a drive system and drive system This invention discloses a method for activating a drive system for control surfaces or working systems of an aircraft, wherein the speed of a drive unit of the drive system is regulated, and after a starting operation the maximum driving power available during the furt... | 01/07/2010 |
| 20090320372 | SAFETY DEVICE FOR AN ACTUATING SYSTEM FOR ROLLER SHUTTERS OR SLIDING BARRIERS Motor-driven actuating system for roller shutters or sliding barriers or the like, provided with an obstacle-sensing safety device having means for acquiring samples (ζ(φn)) of at least one main physical parameter (ζ) relating to operation of the actuating... | 12/31/2009 |
| 20090302794 | TORQUE CONTROL CIRCUIT FOR ELECTRICAL MOTOR The torque control circuit of a hand tool contains a motor driving circuit, a current detection circuit, a reference voltage generation circuit, a current limiting circuit, and a torque configuration circuit. In the last stage of operation of the hand tool and when the ... | 12/10/2009 |
| 20090295320 | Method and Apparatus for Variation of a Rated Current The invention relates to a method for variation of a rated current which is specific of a motor by providing a rated current basic value signal (2) depending on a rated current basic value of the motor Irated, and by detecting an actual temperature T 12/03/2009 | |
| 20090267556 | FUEL CELL DRIVE SYSTEM A motor system is configured by: detecting a duration of idle stop by an idle stop end state detection unit 101 when the idle stop mode of the fuel cell ends; estimating recovery time taken for total voltage of the fuel cell to reach voltage at the idle operation... | 10/29/2009 |
