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:
Sep. 30, 1997
Filed:
Aug. 25, 1995
Masanobu Horiguchi, Kanagawa-ken, JP;
Unisia Jecs Corporation, Kanagawa-ken, JP;
Abstract
The present invention provides for a rapid down-shift to meet an insufficient drive force due to an increase in running resistance such as when ascending a slope. Speed change control is carried out by selecting a speed change step based on the vehicle speed and throttle opening. When there is no speed change requirement, the current running resistance is computed, and the maximum drive force for the current speed change step computed. The maximum drive force is computed based on the down-shift throttle opening corresponding to the current vehicle speed on a down-shift line from the current speed change step to a speed change step on a lower speed side. The running resistance and maximum drive force are compared, and when the maximum drive force is less than the running resistance a forceful down-shift is made.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile