Invention Grant
- Patent Title: Method and device for controlling polyphase synchronous rotary electrical machine, and corresponding reversible electrical machine for motor vehicle
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Application No.: US15520740Application Date: 2015-10-26
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Publication No.: US10763774B2Publication Date: 2020-09-01
- Inventor: Francois-Xavier Bernard , Luc Kobylanski
- Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
- Applicant Address: FR Creteil
- Assignee: Valeo Equipements Electriques Moteur
- Current Assignee: Valeo Equipements Electriques Moteur
- Current Assignee Address: FR Creteil
- Agency: Berenato & White, LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@73d293ce
- International Application: PCT/FR2015/052875 WO 20151026
- International Announcement: WO2016/066941 WO 20160506
- Main IPC: H02P1/00
- IPC: H02P1/00 ; H02P27/08 ; H02P23/00 ; H02P25/03 ; H02P25/026

Abstract:
The method for controlling a rotating electric machine according to the invention comprises a step of controlling the phase currents of the machine by means of a full-wave control (C). According to the invention, the full-wave control (C) is generated via a pulse width modulated signal of which the signal frequency is greater than an electric frequency of the machine. According to another feature, ascending or descending fronts (24, 25) of the pulse width modulated signal are synchronised with first and second crossings of first and second angular switching thresholds (S1, S2) by an electric position (θ) of the machine and a duty ratio (α) of the pulse width modulated signal is periodically refreshed to the signal frequency.
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