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:
Mar. 13, 2012
Filed:
Nov. 19, 2007
Nobuyuki Iwao, Kanagawa, JP;
Hiroshi Usuba, Kanagawa, JP;
Nobuyuki Iwao, Kanagawa, JP;
Hiroshi Usuba, Kanagawa, JP;
Isuzu Motors Limited, Tokyo, JP;
Abstract
A power transmission device for a vehicle having a clutchbetween an engineand a transmission, preventing variation in the engine torque and shift shock when the engine control mode returns from an engine control at the time of shifting back to an accelerator pedal follow-up control for normal traveling. Timer meansis provided for a clutch control devicethat executes the control for disengaging the clutchat the time of shifting and engaging it after the completion of the shifting. The timer meanscontrols a moment for starting the clutch engagement control depending on the engine conditions, etc. The state of increasing the amount of clutch engagement varies and the state of engine rotational speed varies, too. When the engine control at the time of shifting is returned back to the accelerator pedal follow-up control at the time of normal traveling, therefore, the engine can be placed in a condition where the engine torque does not vary despite the control mode is changed over.