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Class Information
Number: 318/278
Name: Electricity: motive power systems > Plural diverse motor controls > Acceleration control > With automatic starting and/or stopping > In response to an electrical condition
Description: Subject matter in which means are provided for starting and/or stopping the electric motor in response to one or more conditions of which at least one is an electrical condition.

Sub-classes under this class:

Class Number Class Name Patents
318/279 Automatic stopping means less responsive during acceleration 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8115424 Method and device for controlling the rotation speed of a piezoelectric motor rotor Feb. 14, 2012
8063590 Method and apparatus for detecting blocking of a direct current motor Nov. 22, 2011
7855522 Motor control method and motor control apparatus Dec. 21, 2010
7633250 Fan Dec. 15, 2009
7141946 Method and apparatus for providing optimal acceleration feedback Nov. 28, 2006
6040666 Machine tool control system and machine tool control method, and detection system and detection method therefor Mar. 21, 2000
5808431 Motor rotational speed control apparatus Sep. 15, 1998
5471353 Disk drive employing multi-mode spindle drive system Nov. 28, 1995
5457365 Disk drive power management system Oct. 10, 1995
5153492 Servo amplifier Oct. 6, 1992
4585981 Device for driving motor-operated closure parts Apr. 29, 1986
4300079 DC Motor control system Nov. 10, 1981
4297623 System for controlling a separately excited constant load DC electric motor Oct. 27, 1981
3938013 D. C. Motor control system effecting changes in the connections of the armature and variations in current flow through the field Feb. 10, 1976

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