Central Japan Railway Company

Nippon Sharyo, Ltd.

Yasuki Nakakura

Tomohiro Otsuka

Isao Naruse

Nobuyuki Okada

Toshio Shikama

Koichiro Nanba

Tomonori Goto

Naoki Tokuda

Fumio Okimoto

Yasutaka Terada

Nobuo Yamanaka

Takahiro Sasauchi

Junichi Fujiwara

Tatsuya Mita

Kenichi Kitazawa

This sensor state determination system is a sensor state monitoring system capable of accurately determining whether or not a detecting sensor used with a railroad vehicle is in an abnormal state. This system includes: a detecting sensor capable of detecting a physical value acting upon the railroad vehicle; and an electronic control device. A monitoring sensor equivalent to the detection sensor is installed at a position equivalent to the position of the detection sensor. The electronic control device is provided with a determination means (coherence calculation section, state determination section) that computes, based on a first signal detected by the detecting sensor and a second signal detected by the monitoring sensor, a coherence value indicating a correlation between the signals. The electronic control device determines that the detecting sensor is in an abnormal state if the coherence value is smaller than a preset abnormality determination value.

Sensor state determination system

An object of the present invention is to realize a structure able to well retain contact performance between an overhead line and a slider, across the entire lengthwise direction of the slider. The sliderformed of slider elementsanddivided in the crosswise direction of a vehicle, is supported on the upper surface of a slider support body. A center support memberforming the slider support bodyis elastically deformed downward in a concaved shape across the longitudinal direction, due to a load applied due to contact between the overhead lines and the slider. Also, together with this, both ends of the center support memberare supported on a shoe bodyso as to allow free oscillation via the respective end section support members. As a result, even if the overhead lines are positioned on both of the end sections in the lengthwise direction of this slider, the slideris able to track the movement of the overhead lines due to elastic deformation of the center support memberand to the rising and falling of the center support member, and hence the above object can be achieved.

Collector shoe device

Growing community of inventors

Narashino, Japan

Yasuki Nakakura