초록 ▼

There is provided a generator system for internal combustion engines, which can produce power efficiently at all times irrespective of the engine speed even for use in an internal combustion engine operated at variable speeds such as a vehicle engine. An AC generator electronic control unit (ACG.ECU

There is provided a generator system for internal combustion engines, which can produce power efficiently at all times irrespective of the engine speed even for use in an internal combustion engine operated at variable speeds such as a vehicle engine. An AC generator electronic control unit (ACG.ECU) 3 determines a rotation speed N2 of a rotating electromagnetic field to be generated by a rotor 1R based on a mechanical rotation speed N1 of the rotor 1R in an alternator 1 such that the relative speed N of the rotating magnetic field to a stator 1S agrees with the maximum efficiency speed of rotation Nx. Then the ACG.ECU 3 sends the determined value to a rotating electromagnetic field controller 2a. The rotating electromagnetic field controller 2a controls phases of AC power to be supplied to a three-phase coil 11 of the rotor 1R to generate a rotating electromagnetic field with the rotation speed N2.

대표청구항 ▼

[ What is claimed is:] [1.] A generator system for an internal combustion engine comprising:an induction machine functioning as a generator/motor machine including rotor and stator with multi-phase windings in which the rotor is rotated by rotational motion of the internal combustion engine operated

[ What is claimed is:] [1.] A generator system for an internal combustion engine comprising:an induction machine functioning as a generator/motor machine including rotor and stator with multi-phase windings in which the rotor is rotated by rotational motion of the internal combustion engine operated at variable speeds; androtating electromagnetic field control means for supplying multi-phase alternating current to the multi-phase windings of said rotor, when said induction machine functions as a motor to generate a rotating electromagnetic field, wherein said rotating electromagnetic field control means controls a rotation speed of the rotating electromagnetic field according to a mechanical rotation speed of said rotor such that a relative speed of said induction machine, defined as a sum of the mechanical rotation speed of said rotor and the rotation speed of the rotating electromagnetic field is set to a predetermined value.