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| Application No. | Application Title | Issue Date |
| 20110248654 | Self-Propelled Working Machine with Electrical Drive System and Processes for Operating the Same The present invention relates to a self-propelled working machine, especially in the form of a surface milling machine, such as asphalt-milling machine or snow-milling machine comprising a main operating unit and/or a drive unit, which is operable in a steady-state or n... | 10/13/2011 |
| 20110241595 | SYSTEMS AND METHODS FOR DECELERATING A MOTOR IN A COMPUTER NUMERICAL CONTROLLED MACHINE TOOL A method for decelerating a motor in a computer numerical controlled machine tool is provided. The method includes calculating a present rate of deceleration DP, for a motor of a motor drive system, based on a present speed SP of the motor, a refer... | 10/06/2011 |
| 20110199032 | CONTROL APPARATUS FOR MATRIX CONVERTER A control apparatus for a series-connected multi-level matrix converter includes each voltage commanding device provided for each of single-phase matrix converters to generate a voltage reference to each of the single-phase matrix converters. The series-connected multi-... | 08/18/2011 |
| 20110181222 | MOTOR CONTROL SYSTEM AND METHOD A highly efficient and reliable motor control system and motor control method are provided. The motor control system includes a motor having a plurality of sets of armature windings, a plurality of inverters which drive the plurality of sets of armature windings, and a ... | 07/28/2011 |
| 20100327790 | CONTROL METHOD AND MOTORSTARTER DEVICE A method for controlling an electric motor with a softstarter. A softstarter device for control of electric motors. Motor torque is controlled in dependence of a torque error signal, based on a calculated difference between the motor torque and a reference torque value,... | 12/30/2010 |
| 20100270961 | Method and Device for Controlling an Electric Motor ( amended A method and a device for controlling and/or regulating an electric motor. Such electric motors are used for example in motor vehicles in the form of pump motors. In general, the electric motor is supplied with electrical energy from a battery and/or using a generator. ... | 10/28/2010 |
| 20100225263 | MOTOR DRIVING CIRCUIT AND METHOD FOR DRIVING MOTOR A motor driving circuit receives a control pulse signal pulse-width modulated according to a target rotational speed, and drives a fan motor. A start pulse signal generating unit generates a start pulse signal having a predetermined duty ratio. A driving unit drives the... | 09/09/2010 |
| 20100115929 | CURRENT LIMITING DRIVER FOR ELECTRIC AIR PUMP The present invention relates to a secondary air supply arrangement having an actuator operably connected to an air pump for creating air flow between an inlet and outlet of the air pump. A pulse width modulated controller is operably connected to the actuator for apply... | 05/13/2010 |
| 20100059240 | METHOD FOR TIGHTENING A SCREW CONNECTION AND SCREW DRIVING TOOL Disclosed is a method for screwing in and tightening a screw connection (1) to a predetermined tightened level (2), especially a predetermined torque level (2) or a predetermined pretension level, with the aid of a hand-held screwing tool (3)... | 03/11/2010 |
| 20100045223 | Method for operating a motor system, and motor system In order to enable in a motor system, in which a soft start of the motor has been implemented, the operation of the motor, wherein the power consumption is reduced, it is proposed to operate the driver circuit during a switch-on phase in order to carry out a soft start ... | 02/25/2010 |
| 20090267553 | UNKNOWN A starting device for an internal combustion engine, especially that of a motor vehicle, comprises:
| 10/29/2009 |
| 20090267552 | Soft Starting Method and System Thereof in the Way of Wave-Skipping with Stepped Frequency and Stepless Voltage Regulating for a Motor The invention relates to a soft starting method and system thereof in the way of wave-skipping with stepped frequency and stepless voltage regulating for a motor which can be applied to the large torque starting of AC motor under the condition of a power supply of a ind... | 10/29/2009 |
| 20090263260 | INVERTER DEVICE The inverter device contains the following structure: an inverter circuit which has upper-arm switching elements that are connected on a positive side of a DC power source and lower-arm switching elements that are connected on a negative side of the DC power source; a c... | 10/22/2009 |
| 20090223726 | Hybrid fuel cell vehicle with multi-power source and multi-drive system and method of controlling the same A hybrid fuel cell vehicle with a multi-power source and a multi-drive system includes: a plurality of primary power sources sharing a single main bus terminal and connected in parallel to each other; a plurality of drive systems receiving power from the main bus termin... | 09/10/2009 |
| 20090206783 | Soft start for electric motor of a power tool A power tool has an electric motor with field windings. In an aspect of the invention, each field winding includes two coils wound with the same number of turns of the same gauge magnet wire. When the motor is first energized, the two coils of each field winding are con... | 08/20/2009 |
| 20090198416 | MATERIALS HANDLING VEHICLE HAVING A CONTROL APPARATUS FOR DETERMINING AN ACCELERATION VALUE A materials handling vehicle is provided comprising: a frame; wheels supported on the frame; a traction motor coupled to one of the wheels to effect rotation of the one wheel; a speed control element operable by an operator to define a speed control signal corresponding... | 08/06/2009 |
| 20090174356 | STARTING CIRCUIT FOR SINGLE-PHASE AC MOTOR A starting circuit for a single-phase AC motor, comprising a main winding, a detecting circuit, a rectifying and filtering circuit, a triggering circuit, a switching circuit and a starting winding. The detecting circuit is connected in series to the main winding for tra... | 07/09/2009 |
| 20090091280 | STOCHASTIC ANTI-WINDUP PROPORTIONAL-INTEGRAL (PI) CONTROLLER Different circuit-based implementations of stochastic anti-windup PI controllers are provided for a motor drive controller system. The designs can be implemented in a Field Programmable Gate Arrays (FPGA) device. The anti-windup PI controllers are implemented stochastic... | 04/09/2009 |
| 20090066280 | MOTOR DRIVE CIRCUIT AND COOLING SYSTEM USING SAME A motor driving circuit generates pulse driving signals, and controls the ON/OFF state of a switching circuit connected to a coil of a motor which is to be driven, thereby controlling the conduction period of the motor. A driving signal generating circuit generates the ... | 03/12/2009 |
| 20090009119 | POWER CONVERTING DEVICE FOR ELECTRIC TRAIN A power converting device for an electric train includes a power converter, an alternating-current motor, a primary control unit, and a control unit. The power converter converts direct-current power into alternating-current power. The alternating-current motor is drive... | 01/08/2009 |
| 20080315812 | Method and device for starting an electric machine with a magnetically mounted rotor A method and a device with a control apparatus (50) for starting an electric machine (10) with a rotor (20), particularly the spinning cup of an open-end spinning machine, magnetically mounted by a bearing having permanent magnets (31, 32, 33, 34... | 12/25/2008 |
| 20080309282 | Restart control of an A.C. motor drive Method of and system for controlling the restart of an A.C. motor drive comprising an A.C. motor (4), a power converter (20, 21, 22) for stepless speed control of the A.C. motor and a load switch (3) arranged between the power converter and the A.C ... | 12/18/2008 |
| 20080278103 | MOTOR CONTROL DEVICE The present invention is a motor control device comprising a control system, the control system being capable of controlling the motor by PWM and having integration means being capable of outputting an integrated value obtained by integrating a deviation between a rotat... | 11/13/2008 |
| 20080272724 | FAN MOTOR DRIVING CIRCUIT A fan motor driving circuit controls an energized state of a fan motor by performing on and off control of a switching circuit connected to a coil of the fan motor of a driving object. A variable reference voltage circuit generates a voltage whose voltage level changes ... | 11/06/2008 |
| 20080219867 | Electric motor and electric pump unit The invention provides an electric motor including a tubular insulator that insulates coils of each of U, V, and W phases that makes a rotor rotated by an electromagnetic force, and a stator core around which the coils are wound; and a plurality of busbars that are fixe... | 09/11/2008 |
| 20080100243 | DRIVE CONTROL DEVICE OF MOTOR AND A METHOD OF START-UP A motor drive control device and motor startup method prevent startup noise and reduce startup time. At startup, a current to which a rotor does not react is passed through two phase coils of a polyphase DC motor in succession, and a voltage polarity induced in a non-co... | 05/01/2008 |
| 20080079378 | CONTROLLER AND CONSTANT MEASURING APPARATUS FOR AC MOTOR A controller and a constant measuring apparatus have a means for supplying a synthesized current, resulting from superimposing an AC current to a DC current, from an inverter and for changing the DC current component of the synthesized current continuously or discontinu... | 04/03/2008 |
| 20070279046 | Piezo-Based Encoder with Magnetic Brake for Powered Window Closing The device (1) comprises a frame (42) comprising a static magnetic pole (48), a movable member (44) relatively to the frame (42), the movable member (44) comprising a moving magnetic pole (46), the static magnetic pole (<... | 12/06/2007 |
| 20070024224 | kW-based torque control for AC motors A kW-based torque controller for use with an AC induction motor has been developed that includes an AC-to-DC converter for receiving incoming three-phase power from a utility and converting the three-phase AC signal to a DC signal, a DC-AC inverter, coupled to the outpu... | 02/01/2007 |
| 20050082997 | Work table A work table is described, having a frame (2) which is adjustable especially with respect to its height and for the adjustment of which at least one electric motor (4) with a control device (7) is provided. In order to provide simple constructional ... | 04/21/2005 |
