Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-06-13
1992-01-21
Herrmann, Allan D.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
3644241, B60K 4110
Patent
active
050818872
ABSTRACT:
A system and method for controlling a vehicle speed so as to prevent gear shift shock in a power train associated with a vehicular engine and automatic transmission are disclosed in which an air charging efficiency for engine cylinders is reduced during the gear shifting transient period, e.g., when shifting from first gear range to a higher second gear range. Therefore, when engine output is reduced by means of retardation of ignition timing at the time of gear shifting, no misfire occurs due to prevention of internal pressure increase in any engine cylinder. Thus, shift shock can be prevented with the smooth reduction of engine output and air charging efficiency is smoothly recovered after completion of the gear shift transient period.
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EOP-Communication forwarding the European Search Report completed in Berlin, by Examiner P. Krieger on May 16, 1991, citing 7 documents all of which are included herein.
Herrmann Allan D.
Nissan Motor Company Ltd.
Trousdell William O.
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