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:
Apr. 13, 1993
Filed:
Aug. 30, 1991
Yuji Kato, Tokyo, JP;
Tatsuo Wakahara, Kawasaki, JP;
Shigeki Shimanaka, Hadano, JP;
Hiroshi Asano, Zama, JP;
Shinsuke Nakazawa, Yokohama, JP;
Hiroshi Sasaki, Yokohama, JP;
Hiroshi Yamaguchi, Yokohama, JP;
Kazuhiro Ishigami, Sagamihara, JP;
Shinichi Takenouchi, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A predetermined control on an engine, i.e., a fuel-cut operation, is executed after an accelerator has been released under predetermined conditions when vehicle speed is higher than a fuel-cut vehicle speed value and engine speed is higher than or equal to a fuel-cut engine speed value. In an automatic transmission drivingly connected to the engine via a torque converter, a gear shift is initiated after the accelerator has been released. During a shift of the same kind, there occurs a variability in shift shock between the cases with and without the execution of the fuel-cut operation. In order to reduce this variability, the execution of the fuel-cut operation is inhibited until completion of the shift after the accelerator has been released under the predetermined conditions.