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:
Sep. 10, 1991
Filed:
Sep. 08, 1989
Yuji Kashihara, Toyota, JP;
Abstract
An apparatus for controlling an automatic transmission of a motor vehicle, which has a first and a second transmission mechanism, and a testing device for testing for a shifting operation which requires shifting actions of both of the first and second transmission mechanisms. The apparatus further has a determining device for determining, based on a rotary member of the second transmission mechanism, that the shifting action of the second shifting mechanism is completed. The determining device determines that the shifting operation of the transmission is completed, at the time when a predetermined time interval has passed after the detemination that the shifting action of the second shifting mechanism is comleted. The point of time at which the completion of the shifting operation is determined may be utilized for various purposes for controlling the transmission.