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. 04, 1989
Filed:
Nov. 23, 1987
Applicant:
Inventors:
Takashi Shigematsu, Susono, JP;
Tomoyuki Watanabe, Susono, JP;
Setsuo Tokoro, Susono, JP;
Daisaku Sawada, Gotenba, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
74866 ; 74867 ;
Abstract
A continuously variable transmission (CVT) for a motor vehicle. A desired speed ratio of the CVT is defined as a substantially continuous function of a throttle position and a vehicle speed. The desired speed ratio is calculated in accordance with a detected throttle position and a detected vehicle speed. The CVT is controlled in such a way that an actual speed ratio equals the calculated desired speed ratio.