Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTROL DEVICE OF TRANSMISSION
Document Type and Number:
Japanese Patent JP2019105332
Kind Code:
A
Abstract:
To provide a control device of a transmission which can make compatible both the prevention of a belt slide which is generated at a start on an uphill, and the suppression of the deterioration of fuel economy.SOLUTION: A control device of a transmission comprises: a first power transmission path for transmitting torque to an output shaft via a gear mechanism; a second power transmission path for transmitting the torque to the output shaft via a continuously variable transmission; and a clutch arranged between the continuously variable transmission and drive wheels, and making the second power transmission device engaged, or releasing the engagement. When it is determined that a vehicle selects a forward range, exists on an uphill at a stop, and is in a positive torque state, the control device determines an engagement state of the clutch. When the determined engagement state of the clutch is in a complete engagement state, an engagement transition state or a release transition state, the control device sets a thrust ratio of the continuously variable transmission to a thrust ratio higher than a thrust ratio which is calculated from input torque, and when the determined engagement state of the clutch is in a complete release state, sets the thrust ratio of the continuously variable transmission to the thrust ratio which is calculated from the input torque.SELECTED DRAWING: Figure 4

Inventors:
HATTORI KUNIO
WASHIO TAICHI
SHIMAZU TAKURO
Application Number:
JP2017239007A
Publication Date:
June 27, 2019
Filing Date:
December 13, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/02; F16H59/66; F16H61/66; F16H61/688
Attorney, Agent or Firm:
Sakai International Patent Office



 
Previous Patent: 電動駆動装置

Next Patent: 車両の動力伝達装置