Control system for engine generator

Details Control system for engine generator Control system for engine generator

1995-12-08

1997-12-30

Laballe, Clayton E.

Prime-mover dynamo plants

Electric control

Engine control

322 29, 12333916, H02P 904

Patent

active

057034109

ABSTRACT:
A control system for an internal combustion engine equipped with an engine generator suppresses fluctuation and pulsation of rotation number of a crank shaft to realize optimal engine operation, enhanced fuel-cost performance and improved exhaust gas purification. An electronic controller for controlling an exciting current of the engine generator and an actuator for a throttle valve includes a unit for determining and storing a desired output power of the engine generator for a load voltage, a unit for determining and storing a desired torque of the engine generator as demanded for generating the desired output power on the basis of the load voltage and a rotation number of the crank shaft, a unit for arithmetically determining an exciting current required for making the demanded torque of the generator coincide with the desired torque, and a unit for driving an excitation coil assembly with the exciting current as determined. By controlling the demanded torque of the engine generator to be constant, the output power thereof is controlled to be constant while allowing the engine to operate at the rotation number which ensures a maximum output efficiency for the engine.

REFERENCES:
patent: 4611560 (1986-09-01), Miyazaki et al.
patent: 5170065 (1992-12-01), Shimizu et al.
patent: 5256959 (1993-10-01), Nagano et al.
patent: 5270575 (1993-12-01), Togai et al.
patent: 5467008 (1995-11-01), Uchinami

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