Title:
CONTROL SYSTEM FOR A MULTIPHASE BRUSHLESS MOTOR WITHOUT A POSITION SENSOR
Document Type and Number:
WIPO Patent Application WO/2024/042241
Kind Code:
A1
Abstract:
The present invention relates to a control system for a multiphase brushless motor without a position sensor, incorporating drive control electronics, comprising: • - a switching means (20), provided with two-state switches (12 to 17), for varying the electrical voltage applied to each of the phases; • - a means for detecting overloading (32) of the motor; and • - a means for determining an operating point (34), allowing at least two operating points to be applied; • - the control electronics being arranged to use space vector modulation or vector modulation to generate a sinusoidal waveform from a DC voltage, and the control electronics being arranged to modify the operating point at least once if an overload is detected by the overload detection means (20).
Inventors:
AUDOUY CHRISTOPHE (CH)
Application Number:
PCT/EP2023/073444
Publication Date:
February 29, 2024
Filing Date:
August 25, 2023
Export Citation:
Assignee:
SONCEBOZ MOTION BONCOURT SA (CH)
International Classes:
H02P29/028; H02P6/08; H02P8/34; H02P8/36; H02P21/06; H02P6/18
Foreign References:
| US20170126153A1 | 2017-05-04 | |||
| EP3826170A1 | 2021-05-26 | |||
| EP2966772A1 | 2016-01-13 | |||
| JP2005151678A | 2005-06-09 | |||
| US20170126153A1 | 2017-05-04 | |||
| EP3826170A1 | 2021-05-26 | |||
| EP2966772A1 | 2016-01-13 | |||
| JP2005151678A | 2005-06-09 | |||
| EP1680862A2 | 2006-07-19 |
Attorney, Agent or Firm:
IP TRUST (FR)
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