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:
May. 15, 2012
Filed:
Oct. 26, 2006
Hiroyuki Shibata, Toyota, JP;
Tooru Matsubara, Toyota, JP;
Takashi Ohta, Toyota, JP;
Hideaki Komada, Gotenba, JP;
Yukihiko Ideshio, Susono, JP;
Hiroyuki Shibata, Toyota, JP;
Tooru Matsubara, Toyota, JP;
Takashi Ohta, Toyota, JP;
Hideaki Komada, Gotenba, JP;
Yukihiko Ideshio, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A drive unit control system having a continuously variable speed change (CV) unit and a geared speed change (geared) unit to execute a manual speed change to apply responsive engine brake and sufficient braking force. A speed change mode is selected from first and second modes, where a total speed change ratio governed by the speed change ratio of the CV unit and the gear stage of the geared unit is set based on a vehicle running condition, and the total speed change ratio is set based on a signal for applying power source braking, respectively. The system reduces a number of gear stages of the geared unit settable under the second mode. Total speed change ratio is set according to the gear stage of the geared unit, and to the speed change ratio of the CV unit, in case the second mode is selected.