Rotating electrical machine control system and vehicle drive...

Details Rotating electrical machine control system and vehicle drive... Rotating electrical machine control system and vehicle drive...

2011-08-16

2011-08-16

Benson, Walter (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S376000, C318S800000, C318S801000

Reexamination Certificate

active

07999499

ABSTRACT:
A rotating electrical machine control system includes a rotating electrical machine, a frequency conversion portion, a voltage conversion portion, a torque limitation portion, and an abnormality detection portion. The torque limitation portion limits generation of a positive torque in a region of less than a rotational speed lower limit threshold value where a rotational speed of the rotating electrical machine is less than zero, and sets a region in which the positive torque is generated to a region of the rotational speed lower limit threshold value or greater, and the torque limitation portion limits generation of a negative torque in a region of greater than a rotational speed upper limit threshold value where the rotational speed of the rotating electrical machine is greater than zero, and sets a region in which the negative torque is generated to a region of the rotational speed upper limit threshold value or less.

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