Title:
LOCK-UP CONTROL DEVICE FOR AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2019/221066
Kind Code:
A1
Abstract:
A lock-up control device for a belt-type continuously variable transmission (CVT) is equipped with a torque converter (2), a lock-up clutch (20), and a CVT control unit (8). The CVT control unit (8) is provided with a coast slip control unit (80a) which feedback-controls the lock-up differential pressure in a manner such that the actual slip rotation speed converges on a target coast slip rotation speed during a coasting deceleration in which the foot is taken off the accelerator. The coast slip control unit (80a) calculates the target coast slip rotation speed to be used in the feedback control on the basis of the anticipated vehicle deceleration.
Inventors:
WANG XUMING (JP)
IKEDA NAOYASU (JP)
IKEDA NAOYASU (JP)
Application Number:
PCT/JP2019/018961
Publication Date:
November 21, 2019
Filing Date:
May 13, 2019
Export Citation:
Assignee:
JATCO LTD (JP)
NISSAN MOTOR (JP)
NISSAN MOTOR (JP)
International Classes:
F16H61/14; F16H59/48
Foreign References:
| JPH0953718A | 1997-02-25 | |||
| JP2010038300A | 2010-02-18 | |||
| JPH0694122A | 1994-04-05 | |||
| JP2010169162A | 2010-08-05 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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