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. 19, 2009
Filed:
Mar. 15, 2005
Nobuyuki Iwao, Kanagawa, JP;
Yasushi Yamamoto, Kanagawa, JP;
Atsushi Yamazaki, Kanagawa, JP;
Takahiro Kuwata, Kanagawa, JP;
Nobuyuki Iwao, Kanagawa, JP;
Yasushi Yamamoto, Kanagawa, JP;
Atsushi Yamazaki, Kanagawa, JP;
Takahiro Kuwata, Kanagawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A vehicle power transmission device in which an engineequipped with a turbo chargerand a fluid couplingwith a lockup clutch are combined together, wherein a timing for connecting the lockup clutchis normalized to accomplish a smooth connecting during the low-speed traveling after the start. A lockup clutch control device is equipped with means for detecting the operating condition of the turbo charger, and the lockup clutchstarts to be connected at a moment before the turbo chargerreaches a high output state. The lockup clutchis connected within a short period of time without producing a shock due to connection and the vehicle, thereafter, accelerates smoothly. A rate of change in the revolution of the engineor the pressure in the intake pipeis detected to detect the operating condition of the turbo charger