Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1984-06-07
1987-01-13
Dorner, Kenneth J.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74861, 74878, 3644241, B60K 4108, G06F 1550
Patent
active
046355081
ABSTRACT:
A control apparatus for controlling the gear engaged by an automatic transmission of a motor vehicle, whereby gear change operations are temporarily inhibited when a signal indicative of a fault condition in a load signal or a speed signal is sensed. The signals representing the speed and load of the vehicle are ordinarily employed directly to determine the gear engaged by the transmission. If a fault condition, such as may be due to a short circuit or open circuit of the corresponding sensor, is detected, to prevent skidding due to a sudden change to an incorrect gear, the gear presently engaged is held for a predetermined period of time. After that predetermined period of time, if the fault condition still exists, the transmission is shifted to the safest gear. Otherwise, the present gear is maintained.
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patent: 3724295 (1973-04-01), Wakamatsu
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patent: 4253348 (1981-03-01), Will et al.
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patent: 4495457 (1985-01-01), Stahl
patent: 4499542 (1985-02-01), Hamajima
patent: 4523281 (1985-06-01), Noda et al.
Andrews Stephen B.
Dorner Kenneth J.
Mitsubishi Denki K.K.
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