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| Number | Title | Issue Date |
| 7372677 | Control apparatus for internal combustion engine-driven vehicle having power supply unit A control apparatus for an internal combustion engine-driven vehicle equipped with a power supply unit having an AC generator driven by an internal combustion engine, and a power converter which converts an output voltage from the AC generator into an AC voltage of ... | 05/13/2008 |
| 7365519 | Excitation system having inner loop voltage regulator with by-pass capability An excitation system that includes an exciter for generating a field voltage for a rotor, a first automatic voltage regulator and a second automatic voltage regulator. The first regulator receives an output voltage of the power generation system as an input, and the... | 04/29/2008 |
| 7335998 | Device for supplying voltage to the loads of an onboard electrical system of a motor vehicle, using a plurality of generators A device for supplying voltage to the loads of an onboard electrical system of a motor vehicle includes a first generator, a regulator allocated to the first generator, a second generator, a regulator allocated to the second generator, and a control apparatus. The c... | 02/26/2008 |
| 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 |
| 7307403 | System and method for DC power generation from a reluctance machine A system and method is provided for generating DC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a sync... | 12/11/2007 |
| 7279805 | Vehicle power supply system with a series regulator A vehicle power supply system has a first battery connected to a generator, a second battery connected to an electric load and a series regulator between the first battery and the second battery. A control unit controls an input voltage of the series regulator and t... | 10/09/2007 |
| 7272514 | Protection system for an electrical power generator An electrical power generator is characterized by a plurality of system parameters. The generator includes a controller for protecting the generator. The controller obtains data from which a present operating point of the generator and a power generating capacity of... | 09/18/2007 |
| 7268451 | Motor resolver assembly and method of measuring speed and position of a motor rotor A motor resolver assembly includes a resolver stator and a resolver rotor positioned radially inward of and rotatable with respect to the resolver stator. First and second relatively rotatable shield components generally surround the resolver stator and rotor to shi... | 09/11/2007 |
| 7227340 | Alternator rectifier with coil-sensor controlled MOSFETs A switching circuit for an electric machine is provided. The switching circuit includes switches for energizing the phase windings of the machine and sensors for driving the state of the switches. The switches are voltage-controlled devices and the sensors are coils... | 06/05/2007 |
| 7196498 | Method and apparatus for generator control A generator control circuit is provided that includes a first circuit (44) monitoring a generator voltage change rate and producing a first output when the voltage change rate is above a first level, a second circuit (48) monitoring a generator current... | 03/27/2007 |
| 7138732 | Security and energy control system and method A system detects for the presence of an identification (ID) code associated with an object. The detected ID code is communicated to a computer and power is provided to an energy consumption device. In response to detecting that the ID code has been absent for less t... | 11/21/2006 |
| 7122923 | Compact high power alternator An apparatus for converting between mechanical and electrical energy, particularly suited for use as a compact high power alternator for automotive use and “remove and replace” retrofitting of existing vehicles. The apparatus comprises a rotor with permanent mag... | 10/17/2006 |
| 7121240 | Valve controller The valve controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit drives a motor based on a control signal generated by the control circuit and a rotational position signal generated by a rotational posi... | 10/17/2006 |
| 7116081 | Thermal protection scheme for high output vehicle alternator A system and a method for thermally protecting a high output vehicle alternator are provided. The high output vehicle alternator includes a duty cycle control system. The duty cycle control system includes an alternator temperature signal generator and an alternator... | 10/03/2006 |
| 7116083 | Method and system for providing current limiting controllers for high reactance permanent magnet generators A system and method is provided for overload and fault current protection of a permanent magnet generator. The system comprises a permanent magnet machine, a DC link, an inverter, coupled between the permanent magnet machine and the DC link, and a controller adapted... | 10/03/2006 |
| 7109595 | Small multi-functional butane gas-powered portable electric generator The object of the present invention is a multi-functional electric generator comprising, an engine, a generator, a voltage-stabilizer control circuit, a gas storage gauge and a lighter. A manual electrical rod can be assembled to a side of the engine allowing the ge... | 09/19/2006 |
| 7023152 | Driving control device for actuator A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric motor (30) by controlling the driving device. The dr... | 04/04/2006 |
| 7019495 | Inter-regulator control of multiple electric power sources The present invention includes a system and method for controlling multiple sources of electric power using inter-regulator control. The regulators in the system may be of a universal type that may operate either as a master regulator or a follower regulator. Determ... | 03/28/2006 |
| 6979914 | Power generating apparatus A power generating apparatus has a power generator 4 for generating AC power, a gas turbine engine 2 for driving the power generator 4, and an inverter device 5 for converting the AC power into commercial AC power. The power generating ap... | 12/27/2005 |
| 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 |
| 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 |
| 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 |
| 6490506 | Method and apparatus for monitoring hydroelectric facility maintenance and environmental costs A system for monitoring maintenance information in a hydroelectric power generation facility comprises sensors coupled to a controller. The sensors detect actual levels of operating parameters for a desired operating period at an operating condition. The ... | 12/03/2002 |
| 6351103 | Process for supplying electrical energy to the network with an AC generator associated with a turbine Process for supplying electrical energy to the network with an AC generator associated with a turbine, by means of a transformer, characterized in that it consists in evaluating the generator precisely as a function of the needs of the site by lowering it... | 02/26/2002 |
| 6215283 | Method and device for controlling an alternator for a motor vehicle Method and device (1) for controlling an alternator (2) delivering an electrical current which supplies power to electrical consumers (4) in a motor vehicle equipped with an internal combustion engine and which recharges a battery (3), in which method and... | 04/10/2001 |
| 6208931 | Power distribution system in a vehicle The apparatus for energy distribution in a motor vehicle includes a vehicle electrical power supply system (11) with a generator (13) regulated by a voltage regulator (21), a battery (12) and consumers and a control arrangement (10) receiving required inf... | 03/27/2001 |
| 6130486 | Engine operated generator An engine operated generator is arranged to constantly respond to a change in the load with a margin of power. The output current of the generator 1 driven by an engine 2 is rectified by a converter 3 composed of a thyristor bridge structure. A direct cur... | 10/10/2000 |
| 6118186 | Throttle control for small engines and other applications The throttle of an engine in an engine driven generator system operating under an intermittently heavy load, as in supplying current to a welder, is controlled such that successive control signals sent to a throttle actuator for adjusting the engine throt... | 09/12/2000 |
| 6018200 | Load demand throttle control for portable generator and other applications The throttle of an engine in an engine driven generator system operating subject to a wide and rapidly variable load, as in supplying current to a welder, is operated such that control signals are sent to a throttle actuator for adjusting the engine throt... | 01/25/2000 |
| 6014015 | Electrical generator employing rotary engine A system for generating electrical power signals from a fluid fuel source. The system comprises an engine and a generator. The engine burns the fuel and is connected to the generator such that the generator generates a raw power signal. An output stage ge... | 01/11/2000 |
| 5886504 | Throttle controlled generator system An improved method and system of increasing the effective electrical load capacity of a power converter is disclosed. Potential damage due to current surges from variation in load is avoided by sensing an impending over-current condition, decreasing the s... | 03/23/1999 |
| 5751069 | Heat engine generator control system An electrical power generation system includes a heat engine having an output member operatively coupled to the rotor of a dynamoelectric machine. System output power is controlled by varying an electrical parameter of the dynamoelectric machine. A power ... | 05/12/1998 |
| 5723972 | Fail-safe common control of multiple alternators electrically connected in tandem parallel for producing high current Two or more alternators--each typically of an economical cost and of any mixture of types and capacities--are turned by a single motive power source--normally the engine of a large commercial truck or bus. The several alternators are electrically connecte... | 03/03/1998 |
| 5681495 | Alternator power-supply type electric heating control apparatus An alternator power-supply type electric heating control apparatus, comprising (1) a switch for switching an output of an alternator including a field coil, a stator coil, and a rectifier to a first state where the output is connected to a battery and veh... | 10/28/1997 |
| 5543703 | Generator motor for vehicles A vehicular generator motor performing generator operation and motor operation is disclosed. The generator motor comprises an AC-DC converter means and a switching means. The converter means is composed of a plurality of MOSFETs and connected between each... | 08/06/1996 |
| 5519305 | Control apparatus for generator A control apparatus for a generator having an inverter, an engine directly coupled to the generator, and a mode selection switch which manually selects either of a low load mode or a high load mode. In the control apparatus for the generator, when an exce... | 05/21/1996 |
| 5087869 | Protective circuit in a device for reducing vibrations of a vehicle body The present invention relates to an electrical protective circuit, used when abnormality occurs, in a vibration suppressing apparatus which changes the load torque on a generator such as an alternator fixed on the engine to generate an angle moment on the... | 02/11/1992 |
| 5077516 | Generator unit A generator unit for a motor vehicle includes a battery, a generator, an intermediate drive for transmitting a drive torque from the internal combustion engine to said generator, an on-board power supply system, and an evaluating circuit. At least one of ... | 12/31/1991 |
