Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-02-20
1991-12-17
Herrmann, Allan D.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74851, 74855, 74844, F16H 5972, F16H 6108
Patent
active
050726307
ABSTRACT:
A control system for a vehicle, including an automatic transmission provided with a multiple transmission gear mechanism, automatically establishes a specific gear stage of a speed ratio from among a plurality of gear stages in accordance with an vehicle operatiing condition. A shift control signal producing device produces a shift control signal in order to produce a shift operation between different gear stages in accordance with the vehicle operating condition. An engine output control device reduces an engine output in synchronism with the shift operation so as to suppress a torque shock due to the shift operation. A detecting device detects a specific vehicle operating condition in which a change in a time lag between a generation of the shift control signal and an actual initiation of the shift operation in the transmission is greater than a predetermined level and produces a signal denoting the specific vehicle operating condition. Finally, a restricting device restricts the engine output control device from reducing the engine output when the specific vehicle operating condition is detected. The torque shock due to the shift operation, therefore, can be effectively suppressed.
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Abe Mitsutoshi
Fujii Masaki
Kikuchi Toshiyuki
Matsuno Yuji
Herrmann Allan D.
Mazda Motor Corporation
Ta Khoi Q.
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