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:
Jun. 13, 1989
Filed:
Jun. 22, 1987
Yukio Hamano, Kobe, JP;
Yuji Kashihara, Toyota, JP;
Keita Sakurai, Toyota, JP;
Hideki Yasue, Toyota, JP;
Kagenori Fukumura, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
In a system for integrally controlling an automatic transmission and an engine wherein engine torque is changed during shifting, it is detected whether or not various communication means provided for carrying out the engine torque change is in a failed state. If so, a shift parameter or parameters in the automatic transmission, such as a shift point and engagement oil pressure, are changed in a direction for securing the durability of frictionally engaging devices. When the shift point is changed, a measured value of factors for determining the shift point is corrected to substantially lower the shift point. With this arrangement, computer capacity can be decreased.