Title:
SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/188930
Kind Code:
A1
Abstract:
An automatic transmission (4) that performs shifting by replacing a friction engaging element is interposed between drive wheels (5) and a drive source (1) having an engine (2) and a motor (3). An ATCU (40) sequentially performs torque phase and inertia phase processes during shifting to control shifting. A transition determination unit (41) determines that a transition to the inertia phase has been made if a transmission ratio is equal to or greater than a threshold value, and a rotational speed control unit (42) controls the rotational speed of a motor toward a target rotational speed. When the shifting is an auto-downshift corresponding to a decrease in vehicle speed during coasting and a rotation fluctuation input condition has been fulfilled, which is that rotation fluctuation is inputted to the automatic transmission (4), a transition to the inertia phase is determined after a filter process of smoothing the transmission ratio has been performed.
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Inventors:
MATSUO KATSUHIRO (JP)
Application Number:
PCT/JP2019/050036
Publication Date:
September 24, 2020
Filing Date:
December 20, 2019
Export Citation:
Assignee:
JATCO LTD (JP)
NISSAN MOTOR (JP)
NISSAN MOTOR (JP)
International Classes:
B60L15/20; B60K6/48; B60K6/547; B60L50/16; B60W10/08; B60W10/10; B60W20/30; F16H61/02
Foreign References:
| JP2010143363A | 2010-07-01 | |||
| JP2005090560A | 2005-04-07 | |||
| JP2010070034A | 2010-04-02 | |||
| JP2008025634A | 2008-02-07 | |||
| JPH08277915A | 1996-10-22 | |||
| JP2000097331A | 2000-04-04 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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