The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2022
Filed:
Jul. 26, 2017
Valeo Systèmes D'essuyage, Le Mesnil Saint Denis, FR;
Frédéric Floquet, Le Mesnil Saint Denis, FR;
Jose-Luis Herrada, Le Mesnil Saint Denis, FR;
Valeo Systèmes d'Essuyage, Le Mesnil Saint Denis, FR;
Abstract
The present invention relates to a gear motor (), in particular for a wiper system, comprising: -a brushless DC electric motor () including: -a rotor; -a stator having coils for electromagnetically exciting the rotor; -a device for determining the angular position of the rotor; -a control unit configured to generate control signals for supplying power to the electromagnetic excitation coils of the stator; -a reduction mechanism () that is linked on one side to the rotor of the electric motor () and on the other side to an output shaft (), the reduction mechanism () having a predefined reduction ratio and; -an output angular position sensor () that is configured to measure the angular position of the output shaft (), wherein the output angular position sensor () that is configured to transmit a signal corresponding to the measured angular position of the output shaft () to the device for determining the angular position of the rotor and said device is configured to determine the position of the rotor on the basis of the transmitted signal by taking into account the predefined reduction ratio of the reduction mechanism (). The invention also relates to a wiper system and to a method for controlling the electric motor ().