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:
Aug. 16, 2022
Filed:
Jan. 17, 2019
Applicant:
Atieva, Inc., Newark, CA (US);
Inventor:
Jean-Philippe Gauthier, San Francisco, CA (US);
Assignee:
Atieva, Inc., Newark, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 15/34 (2006.01); B60L 15/20 (2006.01); B60K 6/26 (2007.10);
U.S. Cl.
CPC ...
B60L 15/34 (2013.01); B60L 15/20 (2013.01); B60K 6/26 (2013.01); B60L 2240/32 (2013.01); B60L 2240/423 (2013.01); B60Y 2200/91 (2013.01); B60Y 2200/92 (2013.01);
Abstract
A powertrain backlash control system is provided for use with an electric vehicle (EV), where the EV uses at least one powertrain to provide forward vehicle motion and at least one additional powertrain to provide rearward vehicle motion. The control system eliminates backlash by maintaining a positive motor torque within each powertrain when the vehicle is in-gear, thus applying a minimum forward torque demand to the powertrain dedicated to forward motion and applying a minimum reverse torque demand to the powertrain dedicated to rearward motion.