Hybrid type working machine

Details Hybrid type working machine Hybrid type working machine

2005-09-27

2005-09-27

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Generator-fed motor systems having generator control

Control of both the generator and the circuit to the motor

C318S153000, C318S157000

Reexamination Certificate

active

06949898

ABSTRACT:
The output of an engine driven generator G is directly supplied to a motor7for travel without the intermediary of a battery. The output capacity of each of the generator G and motor7is determined so that the maximum output of the generator G may substantially coincide with the maximum control electric power that is supplied to the motor7. The over-current with respect to the motor is suppressed by the output impedance of the generator G. A CPU102performs output control so as for the output to conform to the load according to the electric current with respect to the motor. If the electric current increases, the voltage is varied to a level thereof that conforms to that electric current for ensuring sufficient torque.

REFERENCES:
patent: 3771821 (1973-11-01), Rist et al.
patent: 3923115 (1975-12-01), Helling
patent: 4148192 (1979-04-01), Cummings
patent: 5828554 (1998-10-01), Donegan et al.
patent: 5831341 (1998-11-01), Selfors et al.
patent: 02-145118 (1990-06-01), None
patent: 2001-161104 (2001-06-01), None
patent: 2001-161114 (2001-06-01), None

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