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| Number | Title | Issue Date |
| 8125094 | Engine-driven generator speed control system and method A system and method are provided for controlling an internal combustion engine driving a generator/welder or a stand-alone generator. Controlling the engine may include altering the engine speed based upon a detected demand on the generator and/or operating paramete... | 02/28/2012 |
| 8106524 | Capacitor-compensation-type generator In a capacitor-compensation-type generator having a rotor wound with a field winding, a stator wound with an output winding adapted to cross flux generated by the field winding to output AC power, and an internal combustion engine that drives the rotor to rotate rel... | 01/31/2012 |
| 7906863 | Power output apparatus, vehicle equipped with power output apparatus, and control method of power output apparatus In a hybrid vehicle of the invention, a hybrid electronic control unit sets a drive point of an engine and torque commands Tm1* and Tm2* of motors MG1 and MG2 in a range of an input limit and an output limit of a battery, in order to sati... | 03/15/2011 |
| 7875989 | Power source for aircraft engine controller systems An aircraft engine power distribution system for an aircraft engine controller, such as a FADEC, is provided where the power source is independent from the conventional airframe power system, without the need for a back-up battery. The aircraft engine power distribu... | 01/25/2011 |
| 7847424 | Circuit and method for reducing a voltage being developed across a field winding of a synchronous machine In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system having a synchronous machine including a field winding being coupled to the diesel-fueled power generation unit, a battery f... | 12/07/2010 |
| 7825530 | Generator voltage stabilization system and method A generator voltage stabilization system of a heavy-duty vehicle hybrid-electric drive system, which has an engine and a generator coupled with the engine for generating power that varies with rotational speed of the engine, includes one or more circuits having at l... | 11/02/2010 |
| 7812469 | Battery current detection apparatus incorporated in system which regulates vehicle engine speed and electric generator output voltage during engine idling A vehicle system that includes an engine control apparatus which regulates engine idling speed incorporates a battery current detection apparatus which acquires information expressing the value of field current of an engine-driven electric generator and detects a co... | 10/12/2010 |
| 7808119 | Power control system and method This invention discloses a power control system comprising a prime mover and a generator driven by the prime mover. A control device is coupled with the generator to ascertain a change in speed of the generator and vary an output power of the generator according to ... | 10/05/2010 |
| 7471004 | Driving/electric-power generating system for vehicle An AC generator comprises a rotor and a stator having a three-phase winding. A three-phase inverter is connected to the three-phase winding. Here, the three-phase winding comprises at least two independent three-phase windings. Switching elements for respective phas... | 12/30/2008 |
| 7471005 | Engine generator sets and methods of assembling same Methods and systems for an engine generator set that includes an electrical generator configured to provide electrical energy to a first load rated at a first voltage and a first frequency, and to provide electrical energy to a second load rated at a second voltage ... | 12/30/2008 |
| 7459801 | Control apparatus for selectively controlling output current and output voltage of electric generator An electric generator control apparatus of a vehicle sets respective target values of output voltage and output current for the electric generator of the vehicle, and selectively establishes a voltage control mode for holding the generator output voltage at the targ... | 12/02/2008 |
| 7372382 | Voltage regulation using digital voltage control For one disclosed embodiment, error is sensed in a voltage at an output node. One or more analog signals are generated based on the sensed error. One or more generated analog signals are converted into one or more digital signals. The voltage at the output node is c... | 05/13/2008 |
| 7352096 | Electro-motive machine using Halbach array A Halbach array is radially disposed in an environment optimized for efficiency and controlled for efficient generation and use of power in order to generate, establish, and maintain a desired level of rotational energy with enhanced efficiency. ... | 04/01/2008 |
| 7348764 | Coil switching of an electric generator An electric generator includes multiple coil sections and switches connected to the multiple coil sections for selectively interconnecting the coil sections in series, or in parallel, or in a series-parallel configuration across first and second power terminals for ... | 03/25/2008 |
| 7348705 | Multi-phase fractional slot windings for electric machines having segmented bar-shaped windings An electric machine comprises a stator core defining a plurality of slots. Multi-phase fractional slot windings are positioned in the slots of the stator core. The multi-phase winding include a first winding set comprised of a first plurality of conductors having a ... | 03/25/2008 |
| 7346462 | System, method, and article of manufacture for determining parameter values associated with an electrical grid A system, method, and article of manufacture for determining parameter values associated with an electrical grid in accordance with an exemplary embodiment is provided. The electrical grid has a point of interconnection where the electrical grid is electrically coup... | 03/18/2008 |
| 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 |
| 7327113 | Electric starter generator system employing bidirectional buck-boost power converters, and methods therefor A bidirectional buck-boost power converter 13 including a pair of inverter modules 14, 15 disposed at an output of a machine, and an inductor Lo connected between the pair of inverter modules 14, 15. A method for controlling a voltage... | 02/05/2008 |
| 7327123 | Controller for AC generator A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp gene... | 02/05/2008 |
| 7315776 | Control device for an at least part-time four-wheel-drive motor vehicle In the case of a control device for an at least part-time four-wheel-driven motor vehicle, having a control unit which can variably distribute the driving torque of a drive unit to primary driving wheels, which are permanently connected with the drive unit, and to s... | 01/01/2008 |
| 7313469 | Method for supplementing and calculating energy consumed by a vehicle A method for supplementing and calculating energy consumed by a vehicle. A system enables electrically operated vehicles to be provided with electrical energy within a limited time slot, and payment for the energy. A vehicle comprising a receiving area for a first e... | 12/25/2007 |
| 7288921 | Method and apparatus for providing economic analysis of power generation and distribution An economic dispatch program optimally allocates load demand specifying real power and reactive power to be generated by a power plant among various power generators in a manner so that each of the power generators are operated within its optimal operating space as ... | 10/30/2007 |
| 7288922 | Control apparatus for automotive alternator having capability to accurately detect temperature of alternator A control apparatus for a vehicle generator includes a switch, a regulator, a fault condition detector, and a PWM signal generator. The switch is selectively turned on and off so as to intermittently excite the generator. The regulator controls on/off operation of t... | 10/30/2007 |
| 7285869 | Method for estimating engine power in a hybrid electric vehicle powertrain A method is disclosed for estimating engine power output for an engine in a hybrid electric vehicle powertrain that includes an electric motor and an electric generator. Selected powertrain variables, including electric motor torque and electric generator torque, ar... | 10/23/2007 |
| 7276806 | System and method for boosting torque output of a drive train An engine speed detector detects an engine speed of an engine having a baseline torque versus engine speed curve. A torque sensor detects an engine torque of the engine. A data processor determines if the detected engine speed is within a first speed range and if th... | 10/02/2007 |
| 7277782 | Control system and method for electric vehicle An electric traction vehicle is described herein which may be used to provide power to off-board electric power-consuming systems or devices. The electric traction vehicle may provide 250 kilowatts or more of three phase AC power to an off-board electric power consu... | 10/02/2007 |
| 7265463 | Rotary electric apparatus with high cooling performance A rotary electric apparatus, such as on-vehicle three-phase AC generator (i.e., alternator) comprises a main rotary unit, a semiconductor power converter, and an air cooling mechanism. The main rotary unit is provided with a rotor and an armature disposed as a stato... | 09/04/2007 |
| 7262516 | Methods and systems for operating engine generator sets Methods and systems for an engine generator set that includes an electrical generator configured to provide electrical energy to a first load rated at a first voltage and a first frequency, and to provide electrical energy to a second load rated at a second voltage ... | 08/28/2007 |
| 7256506 | Backup power hierarchy for a facility system A system is disclosed which accomplishes a method of providing backup power to a device in a facility. The method includes using turbines to combusting a fuel to generate a primary power source. If this source fails, a secondary source of power is obtained from a co... | 08/14/2007 |
| 7249584 | Impulse charging control to extend displacement on demand range An engine control system for controlling engine operation in activated and deactivated modes in a displacement on demand (DOD) engine includes an impulse charging device that is disposed upstream of an intake port of a cylinder of the DOD engine and that is operable... | 07/31/2007 |
| 7250689 | Common composition engine control unit and voltage regulator A control unit assembly is disclosed including a housing, at least one processor to control operation of an engine, and a voltage regulator configured to regulate a voltage of at least one rail of the engine. The at least one processing unit and the voltage regulato... | 07/31/2007 |
| 7250690 | Distributed power generation system using a fuel cell and a method of controlling the same Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical r... | 07/31/2007 |
| 7245038 | Extending fuel economy operating range in gasoline direct injection (GDI) engines An engine control system for controlling engine operation in high-output (HO) and fuel-economy (FE) modes in a gasoline direct injection (GDI) engine includes an alternator that is driven by the engine and that is regulated by a load control signal. An alternator lo... | 07/17/2007 |
| 7245036 | 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 ... | 07/17/2007 |
| 7245032 | Mobile-power system utilizing propane generator, fuel cell and super capacitors The present invention is a mobile-energy generating system capable of providing redundant direct current power. It comprises a reciprocating engine and generator having dual fuel capability, a fuel cell, commercial electrical power hookups, and capacitors used for b... | 07/17/2007 |
| 7245040 | System and method for controlling the frequency output of dual-spool turbogenerators under varying load Methods for maintaining a constant electrical output frequency in a turbogenerator with increased electrical loads are provided. The methods comprise biasing adjustable guide vanes of a compressor and/or a compressor bleed valve in response to the increased electric... | 07/17/2007 |
| 7242104 | Power system for a telecommunication facility Disclosed is a method of supplying DC power to equipment using proton exchange membranes (PEMs). PEMs run on hydrogen to produce DC electrical power. In the disclosed embodiment these PEMs are used as an alternative source of power to AC sources. One of these other ... | 07/10/2007 |
| 7239034 | Engine driven power inverter system with cogeneration A combined heat and AC power generating system is disclosed having black start capability for the full time, simultaneous production of both electricity and heat. Heat generated within the system is captured and used for heating applications such as heating building... | 07/03/2007 |
| 7235892 | Load-based quadratic compensator gain adjustment One embodiment includes an internal combustion engine, a sensor signal representative of an observed engine speed, and a controller. This controller is responsive to the sensor signal to determine a control input representative of a difference between the observed e... | 06/26/2007 |
| 7235952 | Control apparatus for electrical generator apparatus of motor vehicle A generator control apparatus, for controlling electrical generation operation of a vehicle alternator, has a LAN circuit and a dedicated communication circuit, respectively communicating with an external control apparatus (e.g., engine ECU) via a LAN and via a dedi... | 06/26/2007 |
