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. 14, 2014
Filed:
Sep. 23, 2008
Ichiro Kitaori, Nagoya, JP;
Seiji Kuwahara, Toyota-shi, JP;
Hiroyuki Sawada, Okazaki-shi, JP;
Kazuyuki Shiiba, Toyota-shi, JP;
Toshihiro Fukumasu, Nagoya-shi, JP;
Ichiro Kitaori, Nagoya, JP;
Seiji Kuwahara, Toyota-shi, JP;
Hiroyuki Sawada, Okazaki-shi, JP;
Kazuyuki Shiiba, Toyota-shi, JP;
Toshihiro Fukumasu, Nagoya-shi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
When an automatic transmission is in a manual mode, a transmission ECU calculates a speed sftrng manually requested by the driver and a speed sftrngmap set by a shift map and then performs a shift prohibition procedure. In this procedure, if the engine coolant temperature is equal to or lower than a predetermined coolant temperature or the AT fluid temperature is equal to or lower than a predetermined fluid temperature, a prohibition, determination flag xthlow is set to 'on', and if the engine coolant temperature is higher than the predetermined coolant temperature and the AT fluid temperature is higher than the predetermined fluid temperature, the prohibition determination flag xthlow is set to 'off'. When the prohibitions determination flag xthlow is “on”, the speed sftrngmap is set as the upper limit of the speed sftrng.