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:
Oct. 21, 2003
Filed:
Dec. 13, 2001
Kazuo Ooyama, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An engine is connected to a sun gear of a planetary gear train via a toroidal type continuously variable transmission; driven wheels are connected to a ring gear of the planetary gear train; and the sun gear and the ring gear are connected to each other by a first clutch. A shifter can connect a second clutch, which is connected to the engine, to a carrier of the planetary gear train or to the driven wheels. When the vehicle is started forward when a failure has occurred, by controlling the engagement force of the first clutch on the basis of the rotational rate of the engine and the ratio of the toroidal type continuously variable transmission and controlling the engagement force of the second clutch on the basis of the rotational rate of the engine while the second clutch is connected to the carrier by the shifter, it is possible to prevent the ratio of the toroidal type continuously variable transmission from changing beyond the LOW ratio or the OD ratio and generating an excessive load.