Invention Grant
- Patent Title: Drive and evaluation unit
- Patent Title (中): 驱动和评估单位
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Application No.: US12295783Application Date: 2007-03-20
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Publication No.: US08106609B2Publication Date: 2012-01-31
- Inventor: Walter Haussecker , Dirk Buehler , Peter Froehlich , Francois Schramm , Volker Hertweck
- Applicant: Walter Haussecker , Dirk Buehler , Peter Froehlich , Francois Schramm , Volker Hertweck
- Applicant Address: DE Stuttgart
- Assignee: Robert Bosch GmbH
- Current Assignee: Robert Bosch GmbH
- Current Assignee Address: DE Stuttgart
- Agent Ronald E. Greigg
- Priority: DE102006015392 20060403
- International Application: PCT/EP2007/052616 WO 20070320
- International Announcement: WO2007/115907 WO 20071018
- Main IPC: H02K1/17
- IPC: H02K1/17 ; H02K3/12

Abstract:
The invention relates to a drive and evaluation unit for displacing an object to be displaced, particularly for raising and lowering a side window in a motor vehicle. The drive includes a commutator motor with a stator having two diametrically opposed permanent magnets. The magnets have cross-sectional shapes of a respective peripheral contour segment, having a radial inner peripheral contour segment which encompasses an armature over a respective inner peripheral angle. The armature is provided with ten grooves spaced around its periphery for holding armature windings that are configured as lap windings. The evaluation unit includes a device for determining the rotational position of the armature by evaluating the ripple count of the armature current. According to the invention, the armature windings are configured as short pitch windings, and the inner peripheral angle of the radial inner peripheral contour segment of at least one of the magnets is between 101° and 111°.
Public/Granted literature
- US20090304369A1 DRIVE AND EVALUATION UNIT Public/Granted day:2009-12-10
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