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Title:
VEHICLE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2009228763
Kind Code:
A
Abstract:

To provide a vehicle control device capable of preventing a driver from having a sense of incongruity due to reduction in an engine speed in lockup engagement.

Since lockup control when increasing a vehicle speed is performed in step shifting by putting a lockup clutch 11 of a torque converter 4 in an engaging state from an opening state (Step S14) on condition that the gear ratio of an input shaft 13 of a CVT 2 to an output shaft 18 of the CVT 2 is in a reduction period (gear-up) (Step S13), the reduction in the engine speed caused by the lockup engagement can be synchronized with reduction in an engine speed caused by shifting, and the lockup engagement can be performed without recognizing the reduction in the engine speed caused by the lockup engagement by the driver, thus preventing the driver from having a sense of incongruity.


Inventors:
TAWARA SHINKO
TSUJITA MASAYUKI
Application Number:
JP2008074140A
Publication Date:
October 08, 2009
Filing Date:
March 21, 2008
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/14; F16H59/18; F16H59/40; F16H59/42; F16H59/44; F16H59/70; F16H61/662
Domestic Patent References:
JPS63303259A1988-12-09
JP2006118675A2006-05-11
JP2004125072A2004-04-22
JPS52101359A1977-08-25
JPS57146950A1982-09-10
JPH1120513A1999-01-26
Attorney, Agent or Firm:
Gunichiro Ariga
Eigarou Ariga



 
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