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.:
Date of Patent:
Jan. 03, 2023
Filed:
Jun. 15, 2021
Applicant:
Rivian Ip Holdings, Llc, Plymouth, MI (US);
Inventors:
Huthaifa Mohammad Mahmoud Flieh, Torrance, CA (US);
Chia-Chou Yeh, Torrance, CA (US);
Assignee:
Rivian IP Holdings, LLC, Plymouth, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 3/00 (2019.01); H02P 1/16 (2006.01);
U.S. Cl.
CPC ...
B60L 3/0061 (2013.01); H02P 1/16 (2013.01);
Abstract
Testing connections to phase windings of an electric motor upon startup includes, prior to entering a RUN state in which motor power commands are accepted from a user to perform work, applying to each respective phase of the electric motor a respective test voltage signal, measuring in each respective phase a respective current induced by the respective test voltage signal, and preventing entry into the RUN state when at least one values representative of a respective current is below the respective predetermined threshold.