Abstract:
The present invention relates to a method for controlling an integrated starter-generator. The method comprising the steps of: receiving a start signal; determining an initial position of a rotor with respect to a stator phase winding integrated starter- generator of the integrated starter- generator; applying a pulse-width-modulated signal to the stator winding corresponding to determined initial position of the rotor; measuring current of the stator winding in response to applied pulse-width-modulated signal to determine current variation; if current variation is more than a threshold value, determining updated rotor position and applying a pulse-width-modulated signal to the stator winding corresponding to the updated rotor position; determining speed of the rotor, if speed of the rotor is more than a threshold value, monitoring a trigger signal from an ignition trigger sensor coupled to the engine; and if the trigger signal is received, determining the updated rotor position and exciting the stator winding corresponding to the updated rotor position.
Abstract:
The disclosure describes implementations of methods, systems and apparatuses that are configured to facilitate normal operating characteristics for a wind turbine during normal operation, as well as during voltage irregularities. In an implementation, a turbine controller coordinates operating primary turbine systems and ancillary turbine systems during normal operation and during voltage irregularities. During normal operation, the turbine controller coordinates powering both primary and ancillary turbine systems through a power supply. During a detected voltage event, ancillary turbine systems may be transitioned to a having an uninterruptible power supply power these systems. However, the turbine controller coordinates maintaining the power supply as the sole powering device for primary turbine systems despite a voltage irregularity. In some implementations, when the power supply reaches a critical level during a voltage irregularity, a system fault flag is generated and the turbine blades may be driven into a full feather operational position.
Abstract:
The present invention relates to compositions and methods for characterizing, diagnosing, and treating cancer. In particular the invention provides the means and methods for the diagnosis, characterization, prognosis and treatment of cancer and specifically targeting cancer stem cells. The present invention provides a soluble FZD receptor comprising an extracellular domain of a human FZD receptor that inhibits growth of tumor cells. The present invention still further provides a soluble receptor comprising a Fri domain of a human FZD receptor that binds a ligand of a human FZD receptor and said soluble receptor is capable of inhibiting tumor growth. The present invention still further provides a method of treating cancer comprising administering a soluble FZD receptor comprising for example, either an extracellular domain of a human FZD receptor or a Fri domain of a human FZD receptor, in an amount effective to inhibit tumor growth.
Abstract:
A method and a system for operating an electric turning machine (ETM) operatively connected to an internal combustion engine (ICE) are disclosed. The ETM operates as a motor with a first control strategy and as a generator with a second control strategy, the second control strategy being distinct from the first control strategy. The system comprises an engine control unit adapted for controlling an operation of the ETM according to the first and second control strategies. Electric and assisted start procedures are available for starting the ICE by delivering electric power from a power source to the ETM which is co-axially mounted to a crankshaft of the ICE. Assisted start includes delivering the electric power to the ETM while a recoil starter is used to rotate the crankshaft. A manual start procedure is also available. The power source is charged by the ETM when the ICE is running.
Abstract:
An auxiliary power system for a motor vehicle includes a power generator that generates electricity to charge one or more auxiliary power system batteries. The motor vehicle includes an engine and drive train that distributes power from the engine to the drive wheels. The drive train can include a transmission, a drive shaft and a differential that connects the engine to the drive wheels. The power generator can be connected to the drive train (e.g., the transmission, the drive shaft or the differential) to draw power to generate electricity as well as to apply braking loads on the drive wheels to increase the ability to stop the motor vehicle.
Abstract:
An engine drive electric generator apparatus converts the reciprocating movements of a pushrod of an internal combustion engine to electricity. Each generator apparatus has an electric coil surrounding a combustion engine pushrod, and a magnet on the pushrod that reciprocates with the pushrod through the coil. The relative reciprocating movement between the magnet and coil generates an electric current in the coil that is communicated with a battery of the vehicle to charge the battery.
Abstract:
A start control device of an internal combustion engine capable of realizing a more efficient start control of the engine by recognizing the absolute angle of an engine crank shaft, wherein the absolute angle of the crankshaft (13) is calculated based on the ignition reference signal of the engine and the commutation position pulse signal of a starter motor (10) and the starter motor (10) is controlled based on the absolute angle. The starter motor (10) is rotated reversely based on the calculated absolute angle, and rotated forwardly to start the engine after the crankshaft (13) is temporarily rotated reversely to an expansion stroke, whereby, because the timing of the crankshaft (13) from reverse to forward rotation is controlled accurately by the absolute angle to enable an efficient engine start control, an efficient inertia start control can be realized, and the absolute angle of the crankshaft (13) of the engine can be recognized accurately by a crank angle detector without increasing the number of reluctors (40).
Abstract:
A method of starting an engine includes the steps of starting a fuel supply pump, opening a fuel solenoid to allow fuel flow to a combustor to at least partially begin, and beginning to operate a starter motor to drive a shaft associated with the engine. Then an ignitor is excited to spark in the combustor. An engine is also disclosed.
Abstract:
An electric power generation system (10) with a combustion turbine (12) as a prime mover for a main generator (16) is provided. The power generation system includes a dynamoelectric machine (30) that may be used both as the starting motor and as a generator to provide a source of excitation power that is essentially independent of a local power system and thereby not susceptible to voltage fluctuations and/or power interruptions.