Interrelated power delivery controls – including engine control – Transmission control – Continuously variable friction transmission
Patent
1996-04-24
1997-09-30
Marmor, Charles A.
Interrelated power delivery controls, including engine control
Transmission control
Continuously variable friction transmission
477 46, 477 48, 36442408, B60K 4112
Patent
active
056721374
ABSTRACT:
In a control apparatus for controlling a gear shift ratio of a continuously variable transmission mounted in an automotive vehicle as an automatic power transmission, a gear shift ratio command value is calculated using a control constant corresponding to a dynamic characteristic determined for each instantaneous gear shift ratio of the continuously variable transmission so as to achieve a target gear shift ratio response characteristic. In addition, a disturbance compensator (robust compensator) of a robust type filter is used against a disturbance such as a parameter variation to achieve a gear shift ratio control characteristic that a designer of the control apparatus has desired to achieve in cases where the parameter variation occurs due to a load variation, a change in an environment temperature or deterioration of an oil viscosity in a hydraulic pressure mechanism which creates a pressing force on each of drive and driven pulleys of the continuously variable transmission and where an individual difference in the dynamic characteristic of the continuously variable transmission due to a working and/or assembly accuracy of a power transmission part of the continuously variable transmission occurs.
REFERENCES:
patent: 4720793 (1988-01-01), Watanabe et al.
patent: 5042323 (1991-08-01), Murano et al.
patent: 5042325 (1991-08-01), Sawasaki et al.
patent: 5062049 (1991-10-01), Taylor
patent: 5074166 (1991-12-01), Yamashita et al.
patent: 5144864 (1992-09-01), Sawasaki et al.
patent: 5161433 (1992-11-01), Sakakibara et al.
patent: 5218541 (1993-06-01), Sakakibara et al.
patent: 5257188 (1993-10-01), Sakakibara et al.
patent: 5444346 (1995-08-01), Sudo et al.
patent: 5514047 (1996-05-01), Tibbles et al.
patent: 5558596 (1996-09-01), Adachi et al.
patent: 5609544 (1997-03-01), Lardy et al.
Adachi Kazutaka
Ishii Shigeru
Sudo Hideki
Kwon Peter T.
Marmor Charles A.
Nissan Motor Co,. Ltd.
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