Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1980-09-25
1982-11-30
Krizmanich, George H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74752A, 192 0092, B60K 4108, B60K 4128
Patent
active
043610609
ABSTRACT:
An electro-mechanical automatic transmission system for use in motor vehicles. The automatic transmission comprises a mechanical transmission, gear synchronizer and clutch which have been automated by the addition of electro-mechanical and pneumatic operators and an analog and digital electronic control system. The electronic control system receives operator commands regarding the mode of transmission operation (either automatic or manual) and monitors throttle position, engine speed, transmission countershaft speed, drive shaft (vehicle) speed, and rates of change of these speeds. It also receives information of the present gear ratio and stores data indicating the direction of the last shift. By utilizing this information, the electronic control system selects the optimum transmission gear ratio, effects synchronization of the selected transmission gear elements and controls clutch engagement according to a logic program.
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