Sensorless measurement of positioning travel, especially on...

Details Sensorless measurement of positioning travel, especially on... Sensorless measurement of positioning travel, especially on...

2005-12-15

2009-06-30

Cosimano, Edward R (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

C702S158000

Reexamination Certificate

active

07555401

ABSTRACT:
The invention relates to a method for establishing the position of an actuating unit which is operated by an electric motor, in which a motor speed is determined from a motor model, the speed is integrated over a period of time and the position of the actuating unit is determined by multiplying the result of the integration by a proportionality factor. The motor model takes account of afterrunning of the electric motor at the instant of switch-off. The invention also relates to actuating units, brakes, pumps and transmissions for which the method can be used.

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