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| Number | Title | Issue Date |
| 7781902 | Generator systems and methods A generator set. In one embodiment, the generator set includes an internal combustion engine, a DC generator, one or more battery cells, and an inverter. The DC generator is coupled to the engine and produces direct current (“DC”) electricity. The battery cells ... | 08/24/2010 |
| 7598623 | Distinguishing between different transient conditions for an electric power generation system An electric power generation system is described can include a variable speed generator and an engine driving the generator to provide an AC electric power output. The output is monitored for different types of transient conditions. For example, electric current of ... | 10/06/2009 |
| 7576443 | Method and apparatus for generating electric power A method of generating electric power includes providing at least one open-winding generator having at least one winding, wherein the at least one winding has a first terminal and a second terminal. The method also includes electrically coupling the first terminal t... | 08/18/2009 |
| 7547982 | Device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle A device for the feeding of auxiliary operating facilities for a fuel-electrically driven vehicle with a combustion engine is stated, which device comprises a generator driven by the combustion engine and a rectifier connected with a generator on the AC voltage side... | 06/16/2009 |
| 7385300 | Method and apparatus for determining actual reactive capability curves A system for generating updated reactive capability curves of a generator operates the genarator at a number of operating load levels and at a number of different power factors to collect data regarding the real and reactive power generated at each of the various op... | 06/10/2008 |
| 7362001 | Generator-motor A generator-motor includes a control circuit. The control circuit is provided on an end surface of a motor. The control circuit includes a Zener diode, a capacitor, a U-phase arm, a V-phase arm, and a W-phase arm. The Zener diode, the capacitor, the U-phase arm, the... | 04/22/2008 |
| 7358698 | Field-winding type of synchronous machine A field-winding type of synchronous machine comprises a stator with an armature winding wound phase by phase, a rotor having a rotor core with a field winding wound, and a circuit enabling an armature current to pass the armature winding, the armature current corres... | 04/15/2008 |
| 7312419 | Engine driven converter with feedback control A method and apparatus for welding with an engine driven inverter power supply includes generating an ac output with an engine and generator. The output is rectified and inverted to provide an ac inverter output. The engine is controlled using feedback indicative of... | 12/25/2007 |
| 7312550 | Architecture for electric machine In one aspect, an alternator is described which includes a current control apparatus including a stator winding and a control winding, wherein current control in the control winding regulates the stator winding. In another aspect, a gas turbine engine includes a mul... | 12/25/2007 |
| 7268513 | Motor/generator unit A motor/generator unit in which a motor/generator and an invertor part are integrated and the wiring of a field circuit part for supplying current to a winding on a rotor is rationalized. In a motor/generator unit in which a motor/generator body part having a field ... | 09/11/2007 |
| 7268441 | Control device for motor generator In the control device for motor generator in which an engine is started and power generation is performed while a vehicle is running, a field current limit value Ifm in electric driving to start the engine is larger than a field current limit value Ifg in power gene... | 09/11/2007 |
| 7230347 | Corrosion protection for wind turbine units in a marine environment A corrosion protected wind turbine unit includes a wind turbine unit support structure or foundation implanted in water and an impressed current anode electrochemically coupled to the wind turbine unit support structure or foundation through the water. Also included... | 06/12/2007 |
| 7230399 | Vehicular generator-motor system A vehicular generator-motor 1 is composed of a rotor, a stator having three phase armature winding 2, and a converter 4. The rotor is provided with a field winding 3 for magnetizing a plurality of magnetic pole pieces 14a... | 06/12/2007 |
| 7224078 | Electric rotating machine for vehicle In a vehicle electric rotating machine having a power section formed of a pair of inverter modules of switching elements and diodes connected in parallel thereto, and a control circuit section that controls mentioned power section, there are separately located the c... | 05/29/2007 |
| 7218013 | Wind powered generator A wind powered electrical generation assembly having a portable wind powered generator tower for supporting a wind powered generator allowing the wind powered generator to be raised, lowered, and removed from the tower. The wind powered electrical generation assembl... | 05/15/2007 |
| 7208847 | Vehicular electric power generating system A vehicular electric power generating system includes a vehicular electric generator rotatable by an engine mounted on a vehicle, and a rotational speed changing device for transmitting rotational power generated by said engine to said vehicular electric generator t... | 04/24/2007 |
| 7180201 | Engine starting apparatus A starting apparatus for an engine has a plurality of cylinders and an output shaft. The apparatus includes a power supply, an inverter having a switching element, a motor generator, an ECU, A crank angle sensor. The motor generator is coupled to the output shaft an... | 02/20/2007 |
| 7145261 | Electric generator control method and apparatus, and vehicle equipped with such apparatus A vehicle having an electric generator control apparatus is provided for gradually reducing an engine load imposed due to electricity generation while a throttle valve is in the process of becoming fully open, thereby increasing a vehicle acceleration capability. Th... | 12/05/2006 |
| 7112944 | Electrical power system for multi-use power conditioning and engine start A synchronous and bi-directional power conversion module (140) for use in a variable frequency power conversion system (100) comprises a first input/output side (142) for AC power input/output and DC power source input; a second input/output sid... | 09/26/2006 |
| 7102246 | Method for detecting slip in generator and starter-generator systems The invention is based on a method for detecting slip in the driving of generator or starter-generator systems. The alternators of these systems are equipped with electronic control components such as pulse-width-modulated inverters or rectifier bridges. The drive t... | 09/05/2006 |
| 7095127 | Engine starting apparatus A starting apparatus for an engine has a plurality of cylinders and an output shaft. The apparatus includes a power supply, an inverter having a switching element, a motor generator, an ECU, A crank angle sensor. The motor generator is coupled to the output shaft an... | 08/22/2006 |
| 7061132 | Reciprocating engine type electric generator A reciprocating engine type electric generator includes means for recognizing a phase difference between a phase of an alternate voltage wave generated at a stator coil following rotation of a rotor and a phase of a reference alternate voltage, and means for control... | 06/13/2006 |
| 7034412 | Control apparatus and method of electric rotating machine for vehicle A control apparatus and method for controlling an electric rotating machine for vehicle reduces shock at the time of switching power generation mode. The control apparatus include an electric rotating machine functioning as a starter motor and a charging generator | 04/25/2006 |
| 6984783 | Power control unit for a vehicle A power control unit installed on a vehicle including a first power source and a second power source which have respective different voltages, an inverter connected to a rotary device and connected to at least one of the first and second power sources. A converter i... | 01/10/2006 |
| 6940259 | Generating device including magneto generator A generating device including a magneto generator, wherein: an AC control voltage is applied to an armature coil of the magneto generator from a battery via an inverter to change a phase angle of the AC control voltage, thus increase/reduce an output of the magneto ... | 09/06/2005 |
| 6876098 | Methods of operating a series hybrid vehicle The invention is directed toward methods for operating a series hybrid vehicle in a manner that responds to the operator's demand for power output, while maximizing engine efficiency and minimizing disruptions in vehicle drivability. According to principles of the p... | 04/05/2005 |
| 6806687 | Vehicle motor-generator apparatus utilizing synchronous machine having field winding A vehicle motor-generator apparatus based on a field winding type of synchronous machine coupled to a power inverter and a battery, wherein the synchronous machine is controlled to operate as a motor to perform engine starting and thereafter be driven by the engine ... | 10/19/2004 |
| 6713888 | Vehicle motor-generator apparatus utilizing synchronous machine having field winding A vehicle motor-generator apparatus based on a field winding type of synchronous machine coupled to a power inverter and a battery, wherein the synchronous machine is controlled to operate as a motor to perform engine starting and thereafter be driven by the engine ... | 03/30/2004 |
| 6661110 | Portable generator having thyristor-based rectifier circuit and inverter circuit A small portable generator for generating a single-phase AC voltage under PWM control is subject to output voltage fluctuations under a heavy load. With a view to reducing such output voltage fluctuations, it is intended to provide a portable generator (1... | 12/09/2003 |
| 6629027 | Control device and control method for hybrid vehicle A control device and control method for a hybrid vehicle is disclosed having an electric storage detecting section 13 which detects a state of charge (SOC) of an electric storage device 10. A target running efficiency calculating section 14 serves as a un... | 09/30/2003 |
| 6621175 | Engine control system for hybrid vehicle An engine control system for a hybrid vehicle having an internal combustion engine and an electric motor as driving force sources, for permitting stopping and starting of the engine in accordance with predetermined drive conditions. The system includes a ... | 09/16/2003 |
| 6608395 | Hybrid combined cycle power generation facility A hybrid combined cycle power generation system for producing alternating current electric power. The system includes at least one industrial gas turbine and at least one aeroderivative turbine. The system may also include an HRSG and a steam turbine. Use... | 08/19/2003 |
| 6555929 | Method and apparatus for preventing excessive reaction to a load disturbance by a generator set A method and apparatus are disclosed for controlling a genset having an engine and an alternator in order to prevent an excessive change in a speed of the engine because of a sudden change in a load on the alternator. The method includes obtaining a first... | 04/29/2003 |
| 6541876 | Engine operated generator A generator system arranged to respond to a variation in the load with a generous margin regardless of a change in the output of the generator or the engine due to degradation with the passage of time. The output current of the generator is rectified by a... | 04/01/2003 |
| 6479906 | Drive force control system for vehicles A controller 41 controls the torque of a front wheel drive motor 22 and a rear wheel drive motor 23, the rotation speed of a generator 21, and the torque of an engine 1. The controller 41 computes a target drive force tFv of a vehicle based on an accelera... | 11/12/2002 |
| 6470983 | Hybrid vehicle A hybrid vehicle is disclosed, in which the drive torque is controlled according to a target, and the engine operating point and the battery charging rate are controlled thereby as targeted to improve the fuel consumption rate of the hybrid vehicle as a w... | 10/29/2002 |
| 6414400 | Small engine driven generator A power conversion system includes an engine coupled to drive an alternator, a rectifier circuit, and an ignition controller. The alternator includes a stator and a rotor that cooperate when driven to provide a current supplied to the rectifier circuit. T... | 07/02/2002 |
| 6380639 | System, method and apparatus for power regulation By controlling a power source in response to a load power demand, more efficient operation is obtained. Faster response is also realized by incorporating a compensation for inertia in the path between the power source and the load. In one exemplary embodi... | 04/30/2002 |
| 6376927 | Hybrid electric drive and control method therefor A fuel management control method for a hybrid electric vehicle drive having an internal combustion engine and an electric motor arranged in parallel such that both can propel the vehicle; the system including an electric motor driven fuel pump and a progr... | 04/23/2002 |
| 6365982 | Apparatus and method for positioning an engine throttle A method for controlling the speed of an engine driving a generator supplying electrical current to a load includes the steps of monitoring the current, increasing the speed when the current increases and decreasing the speed when the current decreases. T... | 04/02/2002 |
