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:
May. 02, 2017
Filed:
Jan. 08, 2015
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi Aichi-ken, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 3/14 (2006.01); H02P 3/18 (2006.01); B60L 7/00 (2006.01); B60W 20/00 (2016.01); B60K 6/00 (2006.01); H02P 5/74 (2006.01);
U.S. Cl.
CPC ...
H02P 3/18 (2013.01); B60L 7/00 (2013.01); H02P 5/74 (2013.01);
Abstract
An electric vehicle driven by a synchronous motorand an induction motor, and braked with a first regenerative torque BTgenerated by the synchronous motor generatorand a second regenerative torque BTgenerated by the induction motor generator. The ratio of the first regenerative torque BTto the second regenerative torque BTis changed in accordance with a state of charge (SOC) of a battery. In this way, a switching frequency from a regenerative brake to a hydraulic brake is restricted to improve drivability when a state of charge (SOC) of the batteryis high.