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| Number | Title | Issue Date |
| 8207708 | Power generation control method of hybrid construction machine and hybrid construction machine A power generation control method of a hybrid construction machine capable of maintaining voltage of a capacitor in an appropriate range while minimizing capacitance of the capacitor and of surely preventing a system from being rendered inoperative, and the hybrid c... | 06/26/2012 |
| 7521902 | Power balancing of multiple synchronized generators Power balancing techniques for a synchronous power generation system are provided. One exemplary method for balancing power in a synchronous generator system includes determining an output power characteristic of a synchronous generator driven by a prime mover and c... | 04/21/2009 |
| 7443044 | Engine control device An engine control device that controls an engine having a brushless motor as a starter motor, wherein the control device comprises a pickup coil that outputs a pulse signal at a crank angle position set in a crank angle section where a load applied to the brushless ... | 10/28/2008 |
| 7405542 | Generator synchronization method on a common drive source and apparatus therefor A system that selectively alters a phase angle of an electrical generator. The system has a powered input shaft for transmitting power and an output shaft for receiving power for delivery to the electrical generator. A coupler portion interconnects the input shaft w... | 07/29/2008 |
| 7378985 | Communication system for down hole use A communication system for down hole use and comprising a drill collar (101) comprising a first portion (103) and a second portion (105) separated from each other by an electrically insulating material (67) and means (22, 63, 77, 81 | 05/27/2008 |
| 7368893 | Voltage control apparatus for electric generator of vehicle In a vehicle voltage control apparatus which regulates the output voltage of the vehicle electric generator and which receives an external control signal for lowering the regulated voltage value, from an external apparatus such as the engine ECU during engine starti... | 05/06/2008 |
| 7330014 | Method and system for controlling power to be fed to electrical loads In a control system, a control unit is connected to a generator and is configured to, when a steep change in a load current flowing through at least one specific electrical load is sensed, control the output of the generator based on the sensed steep change in the l... | 02/12/2008 |
| 7319307 | Power balancing of multiple synchronized generators Power balancing techniques for a synchronous power generation system are provided. One exemplary method for balancing power in a synchronous generator system includes determining an output power characteristic of a synchronous generator driven by a prime mover and c... | 01/15/2008 |
| 7256507 | Inverter controlled generator set An inverter controlled generator set including: a power supply unit that uses a generator driven by an engine as a power supply to output a DC voltage; an inverter device that converts the output voltage of the power supply unit into an AC voltage; and a rotational ... | 08/14/2007 |
| 7239097 | Vehicle-mounted drive control apparatus A vehicle-mounted drive control apparatus capable of effecting boosted escape running while preventing burnout when a reversible motor driven by way of a transistor bridge circuit encounters an abnormal load. A motor driven by a transistor bridge circuit reversibly ... | 07/03/2007 |
| 7230344 | Apparatus and method for transient and uninterruptible power In accordance with certain exemplary embodiments, the present technique provides methods and apparatus for providing transient and uninterrupted power to protected loads. As one example, the present invention provides an induction device that operates as an inductio... | 06/12/2007 |
| 7227338 | Fixed frequency electrical generation system with induction coupler and use thereof in an aircraft A fixed frequency electrical generation system includes an induction coupler. The system includes an electricity generator with no rings or brushes, and an induction speed regulator, mechanically coupled, so as to transform mechanical energy input from a shaft rotat... | 06/05/2007 |
| 7224578 | Ergonomic control panel for a portable electric generator A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120 VAC electrica... | 05/29/2007 |
| 7205747 | System and method for monitoring a charging period in a battery charger An apparatus and method for disabling a charging counter circuitry within a battery charger is disclosed. The apparatus includes circuitry connected to a pin associated with the charging counter circuitry of the battery charger, said circuitry receiving a signal fro... | 04/17/2007 |
| 7202637 | Distributed control method The present invention provides an improved control method and apparatus allowing units arranged at different spaced apart locations to be controlled without the need for a high bandwidth link between the units and the controller. This allows a single controller to c... | 04/10/2007 |
| 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 |
| 7176659 | Vehicle electrical power supply system for supplying power to a high power load The present invention provides an electrical power supply system for an automotive vehicle with high reliability and small size in which an adequate power is supplied to both a high power load like a blower motor and a conventional load like a battery by using a con... | 02/13/2007 |
| 7124691 | Method for monitoring and controlling locomotives The present invention is directed to a locomotive comprising energy storage units, such as batteries, a prime energy source, such as a diesel engine, and an energy conversion device, such as a generator. The locomotive comprises one or more of the following features... | 10/24/2006 |
| 7119519 | Control apparatus for on-vehicle generator that sends power from the battery to the field winding and from the field winding back to the battery A control apparatus for an on-vehicle generator is provided. The generator, driven to rotate by an on-vehicle engine, is provided with stator windings, rectifiers, a field winding, and a voltage control apparatus (i.e., the control apparatus for the on-vehicle gener... | 10/10/2006 |
| 7119450 | Fuel saving engine driven aircraft ground power device and method of use The present invention is directed to a power source that includes a housing and an energy storage device arranged to provide an output power. A generator is disposed within the housing and is rechargeable association with the energy storage device. ... | 10/10/2006 |
| 7098628 | Generation control system A generation control system for a vehicle includes an ac generator, a field current control unit that controls the duty ratio of field current of the ac generator, a field current detector, a load current detector, a generator rotation speed detector, a driving-torq... | 08/29/2006 |
| 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 |
| 7076954 | Turbocharger system A system for controlling intake pressure of a combustion engine operably coupled to a power generation system includes a sensor configured to output a signal indicative of a pressure in an intake system of the combustion engine and a sensor configured to output a si... | 07/18/2006 |
| 7061211 | Gas turbine generating apparatus A gas turbine generating apparatus according to the present invention comprises a gas turbine capable of a high-speed operation, a permanent-magnet-type generator driven at a high speed by the gas turbine, an inverter device (5) for converting alternating-cur... | 06/13/2006 |
| 7034508 | Control apparatus for automotive generator An A/D conversion device includes a counter for counting a clock signal fed from a clock signal generator, a D/A converter for converting a digital output of the counter into an analog value, a comparator for comparing an analog output of the D/A converter and an an... | 04/25/2006 |
| 6989610 | Electrical system for turbine/alternator on common shaft An electrical system for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an AC output circuit or the stator winding of the alternator. A control circ... | 01/24/2006 |
| 6987369 | Motor assembly for providing an electrically powered engine A motor assembly includes a keyed on-off switch and at least one 12-volt battery coupled to the existing DC electrical system of the vehicle. A D.C. speed control unit regulates the current to a DC drive motor. A housing is positionable adjacent to a front or rear p... | 01/17/2006 |
| 6963796 | Modularized power take-off systems for vehicles A vehicle power take off system provides power for a variety of systems including a source of alternating current power for conventional electrical equipment to be powered by the vehicle. In a preferred electrical implementation, the power take off system is energiz... | 11/08/2005 |
| 6956301 | Method and apparatus for controlling output voltages and frequencies of turbine/alternator on common shaft An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A cont... | 10/18/2005 |
| 6954052 | Control apparatus and control method of generator for vehicle An electronic control apparatus includes target FR calculator that calculates a target exciting current duty ratio FR based on an exciting current inputted from FR terminal of a regulator and flowing through field coil, and information of engine operating conditions... | 10/11/2005 |
| 6949902 | Controller of rotating electric machine for vehicle A controller of a rotating electric machine for a vehicle has a magnetic field electric current command arithmetic device for commanding a magnetic field electric current by the command of a torque and electric power command arithmetic device, an electric power conv... | 09/27/2005 |
| 6943531 | Portable power supply incorporating a generator driven by an engine A portable power supply includes an engine-driven generator that generates a first AC power. A rectifier rectifies the first AC power to a first DC power. A DC/DC converter converts a second DC power from a storage unit to a third DC power. A controller selectively ... | 09/13/2005 |
| 6911742 | Method and apparatus for turbine/alternator on common shaft during start-up An electrical system for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A control circuit... | 06/28/2005 |
| 6909262 | Control system for regulating exciter power for a brushless synchronous generator A control system regulates power to a brushless synchronous generator (BSG) (204) having a permanent magnetic generator (PMG)(210), an exciter (208) and a main generator (206) connected to a rotating shaft (212). The generator cont... | 06/21/2005 |
| 6909199 | Method and apparatus for compensating output voltage fluctuations of turbine/alternator on common shaft An electrical system and method for a turbine/alternator comprising a gas driven turbine and a permanent magnet alternator rotating on a common shaft includes an inverter circuit connectable either to an output circuit or the stator winding of the alternator. A cont... | 06/21/2005 |
| 6906432 | Electrical power generation system and method An electrical power generating system and method wherein a generator is driven by an air-breathing engine. At any operating condition, for a given power output the engine efficiency is substantially optimized by controlling the rate of air flow through the engine in... | 06/14/2005 |
| 6819007 | Inverter type generator An electronically controlled inverter type generator includes an additional DC voltage boosting circuit that is selectively enabled to provide additional load current when needed. The compact, lightweight, and economical generator is a powerful, portable, quiet elec... | 11/16/2004 |
| 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 |
| 6801425 | Ergonomic control panel for a portable electric generator A control panel for a portable electric generator. The control panel includes three distinct zones having logically organized switches and outlets. The first zone includes those switches used most frequently. The second zone includes a plurality of 120VAC electrical... | 10/05/2004 |
| 6800953 | Engine starting apparatus and method for controlling the same A starting apparatus for an internal combustion engine comprises a starter/alternator assembly operatively coupled to the engine and capable of being operated in a starter mode for starting the engine and in a generator mode for generating electric power when driven... | 10/05/2004 |
