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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.:

US 12763709 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Aug. 08, 2023

Sensorless observer based zero-speed start for fuel cell compressor

Applicant:

Garrett Transportation I Inc., Torrance, CA (US);

Inventors:

Abhijit Sahu, Torrance, CA (US);

Najib Rouhana, Thaon-les-Voges, FR;

Ali Najmabadi, Redondo Beach, CA (US);

Assignee:

GARRETT TRANSPORTATION I INC., Torrance, CA (US);

Attorney:

BelayIP

Primary Examiner:

Thai T Dinh

Int. Cl.
CPC ...
H01M 8/04111 (2016.01); B60L 50/00 (2019.01); B60L 50/51 (2019.01); H02P 6/18 (2016.01); B60L 50/70 (2019.01); H01M 8/10 (2016.01);
U.S. Cl.
CPC ...
H02P 6/181 (2013.01); H01M 8/04111 (2013.01); B60L 50/51 (2019.02); B60L 50/70 (2019.02); B60L 2210/40 (2013.01); H01M 2008/1095 (2013.01); H01M 2250/20 (2013.01); H02P 2203/03 (2013.01); H02P 2203/05 (2013.01); H02P 2207/05 (2013.01);
Abstract

Estimation of motor rotor position including measuring a voltage drop in an inverter during an initialization of an electric motor at zero revolutions per minute and estimating a rotational speed and position of the electric motor in response to a counter-electromotive force and the voltage drop during an increasing of the rotational speed of the electric motor from zero revolutions per second to a steady state rotational speed.

Find Patent Forward Citations

Sahu, Abhijit. (2026). Sensorless observer based zero-speed start for fuel cell compressor (U.S. Patent No. 12763709). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12763709

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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