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:
Jul. 11, 1989
Filed:
Sep. 08, 1987
Haruyoshi Kumura, Kamakura, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
Normally a first target value is given and a reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the first target value. However, when a predetermined heavy load condition on an engine is detected, a second target value is immediately given and the reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the second target value. Subsequently, when a deviation of the actual value from the second target value becomes less than a predetermined value, a third target value is given and the reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the third target value.