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:
Oct. 15, 2019
Filed:
Jul. 23, 2013
Applicant:
Atieva, Inc., Redwood City, CA (US);
Inventor:
Yifan Tang, Redwood City, CA (US);
Assignee:
Atieva, Inc., Newark, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 29/024 (2016.01); H02P 29/032 (2016.01); B60L 3/00 (2019.01); B60L 3/12 (2006.01); B60L 15/20 (2006.01); B60W 50/038 (2012.01); B60W 50/029 (2012.01); B60W 20/50 (2016.01);
U.S. Cl.
CPC ...
H02P 29/027 (2013.01); B60L 3/0061 (2013.01); B60L 3/12 (2013.01); B60L 15/20 (2013.01); B60W 50/038 (2013.01); H02P 29/032 (2016.02); B60L 2240/12 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2240/429 (2013.01); B60W 20/50 (2013.01); B60W 2050/0295 (2013.01); B60W 2510/083 (2013.01); Y02T 10/645 (2013.01); Y02T 10/72 (2013.01); Y02T 10/7275 (2013.01);
Abstract
A safety system for an electric motor controller is provided. The safety system includes a torque safety monitor having a first processor distinct from a second processor of a main motor controller. The first processor is configured to one of decrease or shut down AC (alternating current) power, sent from a DC/AC (direct current to alternating current) inverter to an electric motor, in response to an estimated torque of the electric motor differing from a commanded torque associated with the main motor controller by more than a set amount.