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. 05, 1988
Filed:
Oct. 28, 1986
Applicant:
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ; 74865 ;
Abstract
A continuously variable transmission (CVT) used in a vehicle is controlled such that an actual engine speed Ne is equalized to a desired engine speed Ne'. A reference engine speed Ner is defined to be nearly equal to and less than Ne'. When Ne<Ner, or Ne>Ne', the speed ratio e of the CVT is allowed to be changed, while the change is inhibited when Ner.ltoreq.Ne<Ne'.