Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F16
ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
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F16H
GEARING
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61/00
Control functions within; control units of; change-speed- or reversing-gearings for conveying rotary motion; ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
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F16H61/66
specially adapted for continuously variable gearings
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F16H61/662
with endless flexible members
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F16H2061/66204
Control for modifying the ratio control characteristic
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F16H2061/66218
dependent on control input parameters other than ambient conditions or driver's choice
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F16H2061/66218

Continuously variable transmission and control method therefor
09611933 · 2017-04-04 · ·

A transmission controller searches a mechanical High, which is a minimum value of a possible speed ratio of the continuously variable transmission (CVT), based on an actual speed ratio, sets a control High lower than the mechanical High by a predetermined amount, and controls a speed ratio of the CVT by setting a minimum value of a speed ratio range of the CVT at the control High.