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. 09, 2017
Filed:
Feb. 07, 2012
Tomoyuki Honda, Numazu, JP;
Hitoshi Matsunaga, Susono, JP;
Souitirou Shimura, Susono, JP;
Seiji Masunaga, Susono, JP;
Munehiro Katsumata, Susono, JP;
Tomoyuki Honda, Numazu, JP;
Hitoshi Matsunaga, Susono, JP;
Souitirou Shimura, Susono, JP;
Seiji Masunaga, Susono, JP;
Munehiro Katsumata, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
A speed change control system for a hybrid vehicle comprised of a first motor-generator, a differential mechanism that distributes a power of an engine to the first motor-generator and to an output member and that changes an engine speed in accordance with a speed of the first motor-generator, and a second motor-generator that exchanges a torque with any of wheels. The speed change control system comprises: a first power control means that outputs a command for changing an engine power in a direction to expedite a change in an engine speed, at the beginning of a speed change for changing the engine speed stepwise; a first speed control means that continues controls of the first and the second motor-generators as before the speed change, during a period from a point at which the first power control means outputs the command for changing the engine power to a point at which a response delay of the engine elapses; a second speed control means that controls the first motor-generator in a manner such that the engine speed is changed in a direction to be changed by the change in the engine power, after a lapse of the response delay of the engine; and a second power control means that outputs a command for changing the engine power to a power to be achieved after the speed change, when the engine speed is changed substantially to a target speed to be achieved after the speed change.