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.

Date of Patent:
Feb. 24, 2004

Filed:

Jun. 07, 2002
Applicant:
Inventors:

Eijiro Shimabukuro, Wako, JP;

Naohisa Morishita, Wako, JP;

Takamichi Shimada, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 4/102 ;
U.S. Cl.
CPC ...
B60K 4/102 ;
Abstract

A transmission comprises an engine, which is controllable to stop under a predetermined condition, and a speed change mechanism TM, which transmits the output rotation of the engine at different speed ratios. The speed change mechanism TM has a plurality of transmission paths (the LOW ratio, the SECOND speed ratio, etc.) disposed in parallel, a plurality of ratio-setting clutches (the LOW clutch , the SECOND speed clutch , etc.), each clutch for selecting a predetermined transmission path, and a speed change control system for selectively supplying a hydraulic pressure to any of the ratio-setting clutches to bring it into engagement. Engagement-initiation time is calculated for each ratio-setting clutch, so that the ratio-setting clutch requiring a minimum engagement-initiation time is selected as the clutch for the start-up speed ratio. When the engine is restarted from stopped state, this clutch for the start-up speed ratio is supplied with oil.


Find Patent Forward Citations

Loading…