Measuring and testing – Dynamometers – Responsive to torque
Reexamination Certificate
2008-09-23
2008-09-23
Noori, Max (Department: 2855)
Measuring and testing
Dynamometers
Responsive to torque
C073S862333
Reexamination Certificate
active
11538607
ABSTRACT:
A device for determining the actual reversal of the direction of rotation of a rotational drive continuing to operate after previous switching of the direction of rotation, in particular for window lifting systems or sliding roof drives in a motor vehicle, has a sensor wheel (1) with a coding structure (9) configured asymmetrically in respect of distribution along the periphery of the sensor wheel (1); a single detector (2), which generates a rotor speed-dependent pulse signal during rotation of the sensor wheel (1) by scanning the coding structure (9); and an evaluation unit (4), to which the pulse signal is fed and which determines the actual reversal of the direction of rotation by evaluating the pulse edges; wherein the coding structure (9) is formed by coding sectors (10) of a first sector width (11) and a reference coding sector pair (12) with a second sector width (13).
REFERENCES:
patent: 4263590 (1981-04-01), Arnold et al.
patent: 4594583 (1986-06-01), Seko et al.
patent: 6198175 (2001-03-01), Kalb et al.
patent: 7216030 (2007-05-01), Kassner
patent: 4210933 (1993-10-01), None
patent: 1175598 (2004-09-01), None
patent: 0177693 (2001-10-01), None
Ehrlich Stefan
Stöger Christian
Baker & Botts L.L.P.
Noori Max
Siemens Aktiengesellschaft
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