Automatic transmission controls with multiple downshift off-high

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

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Details

74752D, 192 0094, 192 009, 3644241, B60K 4118, B60K 4110

Patent

active

045760659

ABSTRACT:
An improved control system for an automatic change gear transmission (10) driven by a throttle (18) controlled engine (12) is provided. The control system includes a processing unit (30) for receiving inputs indicating at least throttle position (18), engine speed (20) and vehicle speed (28) and for processing these inputs in accordance with a program to determine the correct engaged gear ratio and for issuing command signals to a transmission shifting mechanism (26). The processing unit includes of operator actuated selection means (32) for selecting a mode of operation (D.sub.1 or D.sub.L) wherein vehicle performance is maximized and the control will evaluate and execute allowable skip downshifts.

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