Drive system for turbocharger with rotary electric machine

Details Drive system for turbocharger with rotary electric machine Drive system for turbocharger with rotary electric machine

1992-07-06

1994-04-26

Ro, Bentsu

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

318722, 60 3934, 60608, F02B 3700

Patent

active

053069978

ABSTRACT:
A system for driving an electric machine mounted on the main shaft of a turbocharger is provided. The electric machine can function as a generator or as an electric motor. The system for driving the machine includes a positional sensor, a phase detective mechanism, a first calculation mechanism and a second calculation mechanism. The positional sensor mechanically predicts an initialized position of phase of the electric machine. The phase detective mechanism electrically predicts the initialized position of phase of the electric machine. The first calculation mechanism calculates the difference between the mechanically predicted initialized position and the electrically predicted initialized position. The second calculation mechanism add the difference calculated by the first calculation mechanism to the mechanically predicted initialized position of phase to derive an initialized position of phase to be used for producing AC electric power to drive the electric machine when it functions as an electric motor.

REFERENCES:
patent: 4361792 (1982-11-01), Davis, Jr. et al.
patent: 4731571 (1988-03-01), Donley
patent: 4731572 (1988-03-01), Bolie
patent: 4769993 (1988-09-01), Kawamura
patent: 4833887 (1989-05-01), Kawamura et al.
patent: 4878347 (1989-11-01), Kawamura
patent: 5105624 (1992-04-01), Kawamura

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