Electric motor controller having independent responses to instru

Details Electric motor controller having independent responses to instru Electric motor controller having independent responses to instru

1995-10-04

1997-07-08

Wysocki, Jonathan

Electricity: motive power systems

Constant motor current, load and/or torque control

318807, H02P 700

Patent

active

056464924

ABSTRACT:
A controller for an electric motor, wherein a differential signal for a speed instruction signal is obtained by a differential circuit, a control signal is obtained by a first speed control circuit, and both signals are summed to obtain a first torque signal. A simulated speed signal is obtained from the first torque signal by a torque simulating circuit and a mechanical system simulating circuit. A second torque signal is obtained by a second speed control circuit. The first and second torque signals are summed by an adder to obtain a torque instruction signal, and the electric motor is controlled so that the generated torque follows the torque instruction signal.

REFERENCES:
patent: 4587469 (1986-05-01), Ikebe et al.
patent: 5223775 (1993-06-01), Mongeau
patent: 5444341 (1995-08-01), Kneifel, II et al.
patent: 5467004 (1995-11-01), Matsuo et al.
patent: 5481168 (1996-01-01), Mutoh et al.
patent: 5493192 (1996-02-01), Nihei et al.

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