Method of controlling speed reduction ratio for a continuously v

Details Method of controlling speed reduction ratio for a continuously v Method of controlling speed reduction ratio for a continuously v

1988-10-19

1990-04-03

Diehl, Dwight G.

Machine element or mechanism

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

Preselected indexed position

74867, B60K 4712

Patent

active

049130056

ABSTRACT:
The speed reduction ratio of a continuously variable speed transmission on a motor vehicle is controlled by continuously varying the speed reduction ratio in a range between a maximum speed reduction ratio and a minimum speed reduction ratio. A top limit speed reduction ratio corresponding to a speed of the motor vehicle and being higher than the minimium speed reduction ratio is set in a low vehicle speed range. The speed reduction ratio is controlled only between the maximum speed reduction ratio and the top limit speed reduction ratio in the low vehicle speed range.

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