Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-10-15
1992-10-27
Bonck, Rodney H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
180170, 180179, 3644241, B60K 4112, B60K 4104
Patent
active
051579901
ABSTRACT:
A system and method for controlling a vehicular power transmission in which, when a signal derived from a vehicle speed sensor is normal, a signal supplied to a first input terminal of the control unit is determined to be the signal of a switch used for an automatic cruise speed control device (ASCD) only when the signal derived from the vehicle speed signal satisfies a predetermined condition, e.g., when the vehicle speed is below a predetermined value. When the signal derived from the vehicle speed sensor does not satisfy the predetermined condition, e.g., when the vehicle speed is above the predetermined value, or when the vehicle speed sensor is abnormal, the signal input to the first supplied terminal of the control unit is determined to be the signal of a switch used for a self diagnostic function. Therefore, if the vehicle speed sensor operates abnormally, the control unit determines that the signal supplied to the first input terminal is derived from the switch used for the self-diagnostic function. Hence, it is possible to operate at least the self diagnostic function even when the vehicle speed sensor malfunctions.
REFERENCES:
patent: 4665773 (1987-05-01), Hiramatsu et al.
patent: 4922425 (1990-05-01), Mack et al.
patent: 4924397 (1990-05-01), Kurihara et al.
Bonck Rodney H.
Jatco Corporation
Kananen Ronald P.
Wittels Daniel
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