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:
Jul. 08, 2014
Filed:
Mar. 30, 2009
Toshio Tanba, Aichi-ken, JP;
Yuichi Fukuhara, Aichi-ken, JP;
Kan Sasaki, Aichi-ken, JP;
Sachio Toyora, Aichi-ken, JP;
Masahiro Omura, Aichi-ken, JP;
Toshio Tanba, Aichi-ken, JP;
Yuichi Fukuhara, Aichi-ken, JP;
Kan Sasaki, Aichi-ken, JP;
Sachio Toyora, Aichi-ken, JP;
Masahiro Omura, Aichi-ken, JP;
Aisin AI Co., Ltd., Nishio-Shi, Aichi-Ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, Aichi-Ken, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi-Ken, JP;
Abstract
In a hybrid power system, when a change-speed stage selected in one of gear-shift mechanisms for first and second drive trains is switched over to another change-speed stage in the other gear-shift mechanism, deceleration in rotation speed of an engine detected by a rotation speed sensor is compared with a preset upper limit. When the deceleration in rotation speed of the engine exceeds the upper limit, the motor-generator in drive connection with an input shaft of the second drive train is activated as an electric motor to cause load torque canceling or offsetting input torque applied to the input shaft of the other gear-shift mechanism from the engine, and engagement of the change-speed stage in the other gear-shift mechanism is released after the occurrence of the load torque.