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:
Jan. 08, 2008
Filed:
Feb. 21, 2005
Tomokazu Yamauchi, Toyota, JP;
Tomokazu Yamauchi, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A motor (MG) is connected to a sun gear () of a first planetary gear (P) of a power distribution/unification mechanism (), an engine (EG) is connected to a carrier () of the first planetary gear (P) and a ring gear () of a second planetary gear (P), an engine (EG) is connected to a ring gear () of the first planetary gear (P) and a carrier () of the second planetary gear (P), and a motor (MG) and a drive shaft () are connected to a sun gear () of the second planetary gear (P). Drive control is made by selecting an operation pattern from the following operation patterns, the operation pattern to be selected is the pattern enabling efficient operation according to a demand by an operator: a first operation pattern where power is outputted from the engine (EG) to the drive shaft (), a second operation pattern where power is outputted from the engine (EG) to the drive shaft (), a third operation pattern where power is outputted from both engines (EG, EG) to the drive shaft (), and a motor operation mode where the engines (EG, EG) are stopped and power is outputted from the motor (MG) to the drive shaft ().