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. 03, 2003
Filed:
Dec. 19, 2001
Shusaku Katakura, Yokosuka, JP;
Masahiro Iriyama, Yokohama, JP;
Osamu Ushikubo, Tochigi, JP;
Hideki Hyoudou, Yokohama, JP;
Kennichirou Murakami, Atsugi, JP;
Nissian Motor Co., Ltd., Yokohama, JP;
Abstract
A controller calculates a target drive force based on an accelerator pedal operation amount and a vehicle speed. A delay speed ratio which varies with a delay with respect to the actual speed ratio is calculated by applying a delay process on the actual speed ratio of the transmission . While the actual speed ratio is undergoing variation, a target engine torque is calculated by dividing the target drive force by the delay speed ratio. The torque of the engine is controlled so that the torque of the engine coincides with the target engine torque. In this manner, it is possible to suppress shift shocks by eliminating sharp variation of the target engine torque during actual speed change.