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Patent Searching and Data


Title:
CONTROL DEVICE FOR VEHICLE CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
Japanese Patent JP2008101716
Kind Code:
A
Abstract:

To provide a control device for a vehicle continuously variable transmission capable of suppressing belt slip when learning of control amount of a working fluid feed/discharge adjusting device is incomplete.

When learning of a gear shift control command signal ST by a learning control means 160 is incomplete, a nipping force control command signal SB is corrected by a secondary pressure control amount correction means 168 such that secondary pressure Pout is increased by correction oil pressure compared with the case at the time of completion of learning of the gear shift control command signal ST. Thus, even if the same state as closing control state is brought about and the secondary pressure Pout is temporarily declined when the learning of the gear shift control command signal ST is incomplete, slip of a driving belt 48 can be suppressed.


Inventors:
KOJIMA SEI
Application Number:
JP2006285480A
Publication Date:
May 01, 2008
Filing Date:
October 19, 2006
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F16H61/02; F16H9/00; F16H59/68; F16H61/662
Attorney, Agent or Firm:
Haruyuki Ikeda