Control device for vehicular engine continuously variable transm

Details Control device for vehicular engine continuously variable transm Control device for vehicular engine continuously variable transm

1984-05-16

1991-02-19

Wright, Dirk

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

3644241, B60K 4118

Patent

active

049932845

ABSTRACT:
A deviation of an actual reduction ratio from a desired reduction ratio is computed. A proportional and integral control is carried out so as to reduce the deviation in good response. A proportional term control gain and an integral term control gain are given different values for downshifting and upshifting, respectively, so as to provide a quick response in downshifting and a gradual response in upshifting.

REFERENCES:
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patent: 4261229 (1981-04-01), Mizuno et al.
patent: 4387608 (1983-06-01), Mohl et al.
patent: 4458318 (1984-07-01), Smit et al.
patent: 4458561 (1984-07-01), Frank
patent: 4466521 (1984-08-01), Hattori et al.
patent: 4470117 (1984-09-01), Miki et al.
patent: 4475416 (1984-10-01), Underwood
patent: 4509125 (1985-04-01), Fattic et al.
patent: 4579021 (1986-04-01), Yamamuro et al.

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