- Patent Title: Arrangement for determining the angular position of a shaft of an electric motor, and windscreen wiper motor with an arrangement for determining the angular position
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Application No.: US14375207Application Date: 2013-01-31
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Publication No.: US09912216B2Publication Date: 2018-03-06
- Inventor: Johann Konradi , Jörg Bürkle
- Applicant: Valeo Systèmes d'Essuyage
- Applicant Address: FR Le Mesnil Saint Denis
- Assignee: Valeo Systèmes d'Essuyage
- Current Assignee: Valeo Systèmes d'Essuyage
- Current Assignee Address: FR Le Mesnil Saint Denis
- Agency: Osha Liang LLP
- Priority: DE102012100829 20120201
- International Application: PCT/EP2013/051862 WO 20130131
- International Announcement: WO2013/113794 WO 20130808
- Main IPC: H02K11/00
- IPC: H02K11/00 ; G01D5/20 ; G01D5/12 ; G01D5/14 ; H02K29/08 ; B60S1/08

Abstract:
The invention relates to an arrangement (20) for determining the angular position of a shaft (11) of an electric motor (10), in particular of a shaft (11) of a windscreen wiper motor (100), with a magnet element arrangement, connected with the shaft (11), and several magnetic field sensors (26, 27, 28), wherein the angular position of the shaft (11) is inferred from the different signals of the magnetic field sensors (26, 27, 28). Provision is made, according to the invention, for the magnet element arrangement to comprise at least one magnet element, preferably several separate magnet elements (21, 22, 23), which are arranged one behind the other in the longitudinal direction of the shaft (11), and for the magnetic field sensors (26, 27, 28) to be arranged on a printed circuit board (30) which is arranged at a slight distance from the shaft (11), such that the magnetic fields of the magnet elements (21, 22, 23) are able to be determined by the magnetic field sensors (26, 27, 28).
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