Class 290/40A - Control in response to engine speed

Subclass of Class 290 - Prime-mover dynamo plants
No. of patents: 229
Last issue date: 01/17/2012

Number	Title	Issue Date
8097969	Method to estimate the output current of an automotive generator (alternator) A control system of a vehicle comprises a current estimation module, a current sensor, and a current diagnostic module. The current estimation module determines an estimated output current of a generator of the vehicle based on an engine speed when the generator is ...	01/17/2012
8049349	Power generation control device A power generation control device can include a switching circuit which controls an output of a generator. A periodical power charge control unit can be configured to allow the switching circuit to the operated in a zone including a combustion stroke of one cylinder...	11/01/2011
8049348	Device for controlling an electricity generator set The present invention relates to a control device (1) for an electricity generator set, the generator set comprising: an engine fitted with at least one actuator (2) for controlling fuel admission; an...	11/01/2011
8022562	Cycloconverter generator In a cycloconverter generator, AC power required by the load is detected and a desired speed of the engine is determined based on the required AC power, operation of an actuator is controlled such that the engine speed becomes equal to the desired engine speed, and ...	09/20/2011
7586204	Permanent magnet alternator speed detection circuit with feedback at lower speeds A permanent magnet alternator is driven by a turbine engine to supply three phases of power to a control circuit for the engine. A shunt regulator delivers current to the control circuit, and a voltage supply is also included to deliver power for a period of time as...	09/08/2009
7446426	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...	11/04/2008
7397223	Inverter-integrated electrical rotating machine An inverter-integrated electrical rotating machine is provided in which each switching device of an inverter and power wiring and control wiring for connecting them can be highly protected electrically and mechanically while the cooling property of the switching dev...	07/08/2008
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
7375500	Method of calculating power generating torque of synchronous generator A method of calculating torque of a Lundell-type synchronous generator is disclosed in which only power generation output current and a rotational speed are input for calculation of the amount of electric power and the amount of losses for thereby enabling calculati...	05/20/2008
7365444	Active anti-islanding system and method An engine control system suited for use with an engine that outputs electrical power to a local load and is electrically connected to an electrical grid. The engine generates power at a power output value and the load consumes power at a load value. The engine contr...	04/29/2008
7358622	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...	04/15/2008
7353661	Vehicle exhaust heat recovery system A vehicle exhaust heat recovery system includes a vapor compression type refrigeration circuit, a boiler to which the refrigerant is introduced from the refrigeration circuit and heated, and an expander for generating motive power by expanding the heated refrigerant...	04/08/2008
7355292	Power generation control apparatus for internal combustion engine An increment of a fuel consumption rate caused by power generation is determined from a difference in fuel consumption rate between a case of performing power generation of an alternator and a case of stopping the power generation. The increment of the fuel consumpt...	04/08/2008
7355828	Turbo machinery speed monitor This invention relates to a speed monitor apparatus for monitoring speed and acceleration of rotating turbine equipment (turbomachinery) and for operating an overspeed trip to shut down the equipment in the event that the speed or acceleration exceed predetermined t...	04/08/2008
7336004	Topologies for using multiple energy sources for power conversions A boost converter and a buck-boost converter supply power to a load from a series connection between a first and a second power source. ...	02/26/2008
7336000	Electrical power regulation for a turbogenerator and generator associated with an internal combustion engine A speed monitor for establishing a lower threshold and an upper threshold for a speed of a rotor or shaft of a turbogenerator. A speed detector detects speed data or a speed signal for a rotor or shaft associated with a turbogenerator. A turbogenerator controller co...	02/26/2008
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
7307355	Power supply apparatus for fuel injection apparatus A power supply apparatus comprised of a bridge circuit made up of rectification diodes and MOSFETs for rectifying an output of a generator through a full-wave rectifier circuit comprised of rectification diodes and parasitic diodes of the MOSFETs and obtaining a sup...	12/11/2007
7295918	Automobile and control method of automobile When an automobile moves in a reverse direction opposite to an expected driving direction according to the current setting of a gearshift position SP, the automobile of the invention sets an adjustment torque Ta corresponding to a measured road surface gradient θ a...	11/13/2007
7292009	Hybrid type working machine Simplifying the controller of hybrid type drive unit. The output of a generator driven by engine is connected directly to a motor 7 through a converter or switching circuit 10 without being charged on any battery. The output of each phase of the genera...	11/06/2007
7291934	Machine with an electrical system A machine includes an electrical power source, which may include a mechanical power source and an electric generator drivingly connected to the mechanical power source. The machine may also include one or more power loads connected to the electric generator. Additio...	11/06/2007
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
7285870	Wind power installation comprising at least two components and a data network Wind power installation for generating electrical energy with at least two components which respectively have sensors and actuators and comprise a control unit, each of the control units being connected to a data network and exchanging with the control units of the ...	10/23/2007
7280950	Locomotive diesel engine turbocharger and turbine stage constructed with turbine blade vibration suppression methodology A method for fabrication of a locomotive diesel engine turbocharger turbine stage so as to avoid harmonic vibration in the turbine blades when the engine is operated at pre-selected throttle settings. Upon determining throttle settings for the engine and modeling of...	10/09/2007
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
7275374	Coordinated multivariable control of fuel and air in engines Methods and systems for controlling a diesel engine using a combined fuel and air-side controller are disclosed. An illustrative method may include the steps of providing a combined fuel and air-side controller adapted to coordinate both the fuel and air-side contro...	10/02/2007
7261076	Method and control system for positioning a crankshaft of an internal combustion engine The invention relates to a method and a control system for driving an electric motor (4) coupled with a crankshaft (2) of an internal combustion engine, in order to position the crankshaft (2) at a starting angle, wherein the control system comp...	08/28/2007
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
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
7252165	Hybrid electric vehicle A hybrid electric propulsion system for powering a vehicle using a natural fuel engine and an electric motor. The hybrid electric vehicle is comprised of a drive train; an electric motor for driving the drive train; an auxiliary power unit (APU); an electric energy ...	08/07/2007
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
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
7245030	Integrated generator and transformer and associated methods An electrical power generating apparatus (20) may include a housing (22), an electrical generator (24) within the housing, and a step-up transformer (30) within the housing and connected to the electrical generator. A turbine (26) ...	07/17/2007
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
7230345	Method for exercising a stand-by electrical generator A method is provided for exercising an engine-driven, electrical generator. The generator has a first operation mode wherein the generator generates a predetermined output voltage at a predetermined frequency with the engine running a predetermined operating speed a...	06/12/2007
7227272	Control apparatus for electrical generator of motor vehicle A control apparatus such as an ECU, that controls the generator of a vehicle, measures the engine rotation speed and generator rotation speed while the engine is idling, and calculates and stores the ratio of the speed values. Thereafter when the vehicle is being dr...	06/05/2007
7217221	Method for active engine stop of a hybrid electric vehicle A method for providing an active engine stop of the engine of a hybrid electric vehicle. The method utilizes the electric machine to oppose and rapidly stop the rotation of the engine at a controlled rate. The method includes the calculation of an input speed reduct...	05/15/2007
7215034	Power supply system for vehicle An A.C. generator has a rotor that is equipped with a permanent magnet and a field coil. The output of the A.C. generator charges the high-voltage battery. Voltage of the high-voltage battery is stepped-down by a DC/DC converter and supplied to the low-voltage batte...	05/08/2007
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

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Class 290/40A - Control in response to engine speed