MUMBAI, India, March 13 -- Intellectual Property India has published a patent application (202611007383 A) filed by Motorama Ev Private Limited, Noida, Uttar Pradesh, on Jan. 25, for 'predictive sensorless motor-drive apparatus for harmonic and torque ripple reduction.'
Inventor(s) include Abhishek Gupta.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "Disclosed is a sensorless motor-drive apparatus for reducing harmonic current and torque ripple in a brushless DC motor. The apparatus comprises a DC supply, a multi-phase power inverter, terminal-voltage and phase-current sensing circuits, and a switching-state register. A back-EMF estimation circuit generates an estimated back-EMF signal from sensed electrical states. A predictive current projection unit computes a future phase-current trajectory over a defined prediction interval based on the estimated back-EMF and an inductance parameter. A compensation synthesis circuit generates a corrective control component prior to a subsequent inverter switching instant, and a summation interface superimposes the corrective control component onto a torque-producing command supplied to the inverter. The corrective control component is applied anticipatorily to suppress harmonic current and torque ripple without use of a mechanical rotor position sensor."
Disclaimer: Curated by HT Syndication.
