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:
Aug. 27, 2002
Filed:
Oct. 18, 2000
Masatoshi Akanuma, Fujisawa, JP;
Mitsuru Watanabe, Hadano, JP;
Masato Koga, Atsugi, JP;
Satoshi Takizawa, Yokohama, JP;
Shigeki Shimanaka, Hadano, JP;
Hiroyasu Tanaka, Zama, JP;
Junya Takayama, Oomiya, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A first switch ( ) which can select a manual mode, and a second switch ( ) which can select one of an upshift and a downshift, are provided. A microprocessor ( ) varies a speed ratio of an automatic transmission ( ) according to the specification of the second switch ( ) when the first switch ( ) has previously selected the manual mode, and the second switch ( ) subsequently specifies one of the upshift and the downshift (S , S , S , S , S , S , S , S , S , S , S ). On the other hand, variation of the speed ratio of the automatic transmission ( ) according to the specification of the second switch ( ) is prohibited when the second switch ( ) specifies one of the upshift and the downshift at a timing not later than a timing at which the manual mode is selected by the first switch ( ) (S , S , S , S , S , S , S , S , S , S , S ). Due to this processing, an unexpected speed ratio variation is prevented from occurring simultaneously when the first switch ( ) selects the manual mode in the state where the second switch ( ) has been fixed in the ON state due to malfunction or misoperation of the second switch ( ).