Automotive gearshift jolt minimization system

Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position

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74862, B60K 4118

Patent

active

046115072

ABSTRACT:
To control the pressure p of an operating fluid in an automatic transmission (12), the input speed and output speed (n.sub.T, n.sub.out) of the transmission is sensed, and the pressure (p) is so controlled by a control unit (21) that the transmission ratio which is actually coupled by the transmission, in view of the pressure set by the friction bands, is carried out in accordance with a predetermined timing function (i.sub.com), for example as stored in a read-only memory (ROM, 24). Change in shifting characteristics can be obtained, for example, by operator-selected different time-engagement relationships to obtain maximum passenger comfort or maximum acceleration, or intermediate relationships.

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