Title:
CONTROL DEVICE OF POWER TRANSMISSION DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2018021582
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To accurately determine a start of the release of a release-side clutch when a gear change of a stepless gear change part and a clutch-to-clutch gear change are performed at the same timing.SOLUTION: An electronic control device 80 includes: a stepless gear change control part 106 for down-shifting a continuously variable transmission 24 on the basis of the pedal-in of an accelerator pedal; a stepped gear change control part 104 for performing a clutch-to-clutch gear change for making a forward clutch C1 engaged by releasing a CVT traveling clutch C2; a gear change ratio change suppression part 108 for suppressing a change of a gear change ratio γ of the continuously variable transmission 24; and a clutch-C2 release start determination part 112 for determining a start of the release of the CVT traveling clutch C2 on the basis of the fact that the a rotational speed difference ΔNin between an actual input shaft rotational speed Nin which is raised by a slide of the CVT traveling clutch C2 and an estimation input shaft rotational speed Nins which is calculated from a gear change ratio γdw at a start of the suppression of the change of the gear change ratio γ of the continuously variable transmission 24 exceeds a prescribed rotational speed difference determination value A.SELECTED DRAWING: Figure 6
Inventors:
SHIMOSATO YUYA
MORITOMO SUSUMU
HATTORI KOJI
MORITOMO SUSUMU
HATTORI KOJI
Application Number:
JP2016151615A
Publication Date:
February 08, 2018
Filing Date:
August 01, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/04; F16H37/02
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda
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