Title:
CONTROL DEVICE OF POWER TRANSMISSION DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2019138338
Kind Code:
A
Abstract:
To improve determination accuracy of an operation state of a second engagement device.SOLUTION: Whether a transition condition of an operation state of a second clutch C2 represented by four states of complete release, complete engagement, release transition and engagement transition is established or not, is determined on the basis of a state of hydraulic control to the second clutch C2 and a state of C2 differential rotating speed ΔNc2, and the operation state of the second clutch C2 is determined on the basis of a result of the determination whether the transition condition is established or not, so that four states of the second clutch C2 can be properly determined while taking account of an actual state of the second clutch C2 to tendency of whether a clutch hydraulic pressure of the second clutch C2 is increased or decreased and/or a state of C2 instruction hydraulic pressure. Thus determination accuracy of the operation state of the second clutch C2 can be improved.SELECTED DRAWING: Figure 10
Inventors:
WASHIO TAICHI
Application Number:
JP2018020366A
Publication Date:
August 22, 2019
Filing Date:
February 07, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/02; F16H61/662; F16H61/688
Domestic Patent References:
| JP2016017555A | 2016-02-01 | |||
| JP2017106501A | 2017-06-15 |
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda