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:
Feb. 28, 2012
Filed:
Dec. 27, 2007
Yoshitaka Suzuki, Nishikamo-gun, JP;
Keiichi Murata, Tahara, JP;
Yoshitaka Suzuki, Nishikamo-gun, JP;
Keiichi Murata, Tahara, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
For raising an MG2 rotational speed MRNto a target rotational speed (low-gear rotational speed NLG), an output torque of an MG2 starts to increase at a time t. During an inertia phase (period α), the output torque of the MG2 is limited not to exceed a first limit value TLIMdetermined according to a shift progress degree PRG and a second limit value TLIMdetermined according to a rotational speed margin NEmgn. Since the output torque of the MG2 is sufficiently small in a final stage of the inertia phase (period α), output variations occurring at a time twhen torque down is performed on the MG2 can be small. The torque down of the MG1 and MG2 does not raise engine rotational speed NE.