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. 15, 2014
Filed:
Oct. 15, 2012
Tooru Matsubara, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Masakazu Kaifuku, Okazaki, JP;
Yoshiki Ando, Nishio, JP;
Tooru Matsubara, Toyota, JP;
Atsushi Tabata, Okazaki, JP;
Masakazu Kaifuku, Okazaki, JP;
Yoshiki Ando, Nishio, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
In a downshift of an automatic transmission in a state where an accelerator pedal is depressed, one of a clutch-to-clutch shift in which the shift is carried out by gradually reducing an engagement pressure of a clutch or a brake to be disengaged in the shift and a rotation synchronization shift in which the shift is carried out by reducing the engagement pressure of the clutch or the brake more quickly than in the clutch-to-clutch shift is selected based on an output shaft torque of the automatic transmission, a region where the rotation synchronization shift is selected is lower in output shaft torque than a region where the clutch-to-clutch shift is selected, and hence it is possible to appropriately selectively execute a shift placing emphasis on a shock and a shift placing emphasis on a shift speed in accordance with the output shaft torque.