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. 20, 2015
Filed:
Jun. 30, 2011
Applicants:
Kazuhito Hayashi, Inazawa, JP;
Hideto Hanada, Toyota, JP;
Inventors:
Kazuhito Hayashi, Inazawa, JP;
Hideto Hanada, Toyota, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 27/06 (2006.01); H02P 21/02 (2006.01); H02P 23/02 (2006.01); B60L 15/20 (2006.01); H02P 6/04 (2006.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); B60L 15/2045 (2013.01); H02P 6/04 (2013.01); H02P 21/02 (2013.01); H02P 23/02 (2013.01); B60L 2210/14 (2013.01); B60L 2240/427 (2013.01); B60L 2240/527 (2013.01); B60L 2260/44 (2013.01); Y02T 10/643 (2013.01); Y02T 10/644 (2013.01); Y02T 10/7225 (2013.01); Y02T 10/7283 (2013.01);
Abstract
An ECU sets target value of a system voltage based on an electric power loss of a motor generator and an inverter and controls a voltage boost converter. The ECU calculates the target value of the system voltage using a function expression generated, for each operating point of the motor generator, by approximating a loss characteristic which represents change of the electric power loss with respect to change of the system voltage, by a quadratic expression or a linear expression of the system voltage.