Master controller

Details Master controller Master controller

2000-08-24

2001-12-11

Swarthout, Brent A. (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C246S00100C, C246S16700M, C701S019000, C701S020000

Reexamination Certificate

active

06329912

ABSTRACT:

BACKGROUND OF THE INVENTION
1. [Technical Field]
The present invention relates to a master controller and a railway vehicle use master controller for and in particularly to a technique in which plural rotation angle sensors for as a construction for obtaining a notch signal are provided in a master controller.
2. [Prior Art]
Recently, a construction as a master controller, in which a notch signal being interlocked to a handle is outputted, is changed to an electric system using an encoder or an electrostatic capacity sensor from a mechanical system using a cum switch. For one example, there is one technique shown in (1) Japanese application patent laid-open publication No. Hei 7-107625 and another technique shown in (2) Japanese application patent laid-open publication No. Hei 10-80010.
In the above stated conventional master controller techniques, the rotation angle sensor is formed with a double system and then a reliability performance of a train operation can be heightened, however as to relating to a redundancy performance in a train operation it is not taken into consideration.
Namely, in a case of the above stated conventional technique shown in (1) Japanese application patent laid-open publication No. Hei 7-107625, it can correspond only to a case where one of the two rotary encoders is out of order and a signal transmission comes to end, however it does not refer to a case in which values of both signals are slipped off, etc.
Further, in a case of the above stated conventional technique shown in (2) Japanese application patent laid-open publication No. Hei 10-80010, when a detection notch of some rotation angle sensor is not coincided with, it can be treated as an abnormality, then there is not an afraid about an error notch command.
However, when an abnormality generates on one of two rotation angles, immediately after since a controlling apparatus or a motor of a locomotive vehicle is formed to stop, in regardless of the leaving of one of the normal rotation angle, there is a problem in which a whole of a railway train is performed to stop.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a master controller having a redundancy performance in a train operation in which as the master controller having two rotation angle sensors in one of the rotation angle sensors an abnormality generates, even when a non-conformance generates in the both output values of the rotation angle sensors, an operation of a railway vehicle can be continued.
The above stated object can be attained by a master controller in which signal corresponding to each of notches “power”, “neutral”, and “brake” is outputted from two rotation angle sensors by interlocking a handle, the master controller wherein a position sensor for detecting a “neutral” is provided separately, when the handle is positioned at the “neutral” position, whether the rotation angle sensor checks the “neutral” position or not, and an output of the rotation angle sensor which does not detect the “neutral” position is released.
The above stated object can be attained by a master controller in which a signal corresponding to each of notches of “power”, “neutral”, and “brake” is outputted from two rotation angle sensors by interlocking a handle, the master controller wherein output signals of the two rotation angle sensors are compared with, and when both output signals of the two rotation angle sensors differ, by selecting a signal at more brake side is selected and outputted.


REFERENCES:
patent: 3582971 (1971-06-01), Coccia
patent: 5086641 (1992-02-01), Roselli
patent: 5590042 (1996-12-01), Allen, Jr. et al.

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