Vorrichtung und Verfahren zum Ansteuern eines Bldc-Motors

Details

Veröffentlichungs-Nr.

EP4712335

Anmeldetag

13. September 2024

Veröffentlichung

18. März 2026

Rechtsraum

EP

IPC

H02P6/182, H02P6/21

Abstract

This invention provides a method and device for controlling brushless direct current (BLDC) motors, enabling smooth transitions between open loop control at low speeds and closed loop control at higher speeds. The device integrates modules for driving, observing, and transitioning between open and closed loop IB (current and back electromotive force) angles. A weighted average of the IB angles ensures stable motor performance during transitions, minimizing torque shocks, current spikes, and noise. The device also features current and voltage regulation to maintain accurate motor speed under varying conditions. Dynamic adjustment of weighting factors based on motor speed and signal-to-noise ratio further enhances control stability. This system improves motor efficiency in motor driving, reduces the risk of stalling, and optimizes performance across a wide range of operating speeds.

Anmelder

Firma

Melexis Technologies NV

Land

🇧🇪 Belgien