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Title:
AUTOMATIC TRANSMISSION CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/176400
Kind Code:
A1
Abstract:
In the present invention, an automatic transmission includes a belt-type continuously variable transmission (CVT), and a control unit (10) that controls a gear ratio. The control unit (10) includes a target gear ratio calculation unit (101), a deviation calculation unit (102), a feedback control unit (103), and a notch filter (104). The notch filter (104) has a notch frequency in which the gain becomes minimum at a low frequency side of a power train resonance frequency, and advances the phase of a power train resonance frequency region while suppressing the gain at a high frequency side.

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Inventors:
OKAHARA KEN (JP)
Application Number:
PCT/JP2019/004536
Publication Date:
September 19, 2019
Filing Date:
February 08, 2019
Export Citation:
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Assignee:
JATCO LTD (JP)
International Classes:
F16H61/02; F16H59/24; F16H59/40; F16H61/66
Domestic Patent References:
WO2017159203A12017-09-21
Foreign References:
JP2017211008A2017-11-30
JP2016183760A2016-10-20
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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