Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-12-05
1992-06-02
Braun, Leslie A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
192 33, B60K 4106
Patent
active
051177110
ABSTRACT:
A control system for an automatic power transmission for an automotive vehicle performs line pressure control, shift control, lock-up control, engine brake clutch control, and so forth, on the basis of preselected engine control, parameters including a throttle valve open angle monitored by a throttle angle sensor. The control system is designed to detect failure of the throttle angle sensor or abnormality of the output signal of the throttle angle sensor to perform in a fail-safe mode of operation. In the fail-safe mode of operation, respective ones of a plurality of mutually distinct back-up signals serve as replacement of the throttle angle sensor signal. Each of the back-up signals is adapted to one of line pressure control, shift control, lock-up control, and engine braking clutch control for maintaining acceptable drivability of the vehicle.
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Service Manual (publication No. A261C07) entitled "Nissan Full Range Electronically Controlled Automatic Transmission RE4R01A Type", published by Nissan Motor Company Limited in Mar. 1987.
Braun Leslie A.
Jatco Corporation
Kananen Ronald P.
Massey Ryan W.
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