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公开(公告)号：US20210099246A1
公开(公告)日：2021-04-01
申请号：US16981965
申请日：2019-03-26
摘要： Provided is a wireless communication apparatus, comprising: a symbol synthesis circuit that synthesizes received symbols; a demodulation circuit that demodulates the received symbols each before and after the synthesis; an error correction circuit that corrects demodulated received data from the demodulation circuit; a detection circuit that detects a first error detection code from the error corrected received data; a second detection circuit that detects a second error detection code obtained by inverting a plurality of arbitrary bits from the error corrected received data; a received data selection circuit that selects the received data, wherein: the received data selection circuit determines a modulation scheme used upon transmission by using detection results of the first and second error detection codes and selects received data corresponding to the determined modulation scheme.
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公开(公告)号：US11519825B2
公开(公告)日：2022-12-06
申请号：US16534273
申请日：2019-08-07
发明人： Masashi Itoyama , Takeshi Narita , Naotaka Kumagai
摘要： A temperature abnormality detection system includes: measurement devices; and a processor to determine temperature abnormality using a first temperature T1, a second temperature T2, and a third temperature T3. The processor determines occurrence of temperature abnormality when any one of following conditions is satisfied: (A) T1>A0 or T2>A0 or T3>A0; (B) T1>A1 and (T2−T1>A4 or T2−T1 A2 and T3>A3; (C) T1>A1 and T2−T1>A4 and T3>A3; (D) T1>A1 and T2−T1>A4 and (T3−T2>A5 or T3−T1>A6); and (E) T1>A1 and T2−T1 A7 or T3−T1>A8), where A1
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公开(公告)号：US11505221B2
公开(公告)日：2022-11-22
申请号：US16616016
申请日：2018-05-22
发明人： Kousuke Sakaguchi , Kazuaki Fujita , Masanori Sawada , Hironori Yokota , Tomohiro Otsuka , Jun Asano , Masashi Sekiya , Seiji Kanamori
IPC分类号： F16D65/18 , B61H5/00 , F16D55/2265 , F16D127/02
摘要： A floating caliper brake device for a railroad vehicle includes: a support pin that is supported by a cylindrical portion of a support frame in such a manner as to be slidable in a direction X; a caliper; a first and second brake shoe; a pressurizing device that moves the first brake shoe back and forth; an elastic member that is expandable and contractible in the direction X; a stopper member that is immovable relatively to the cylindrical portion in the direction X; and a moving member that is frictionally engaged with the support pin so as to be slidable in the direction X.
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公开(公告)号：US11097619B2
公开(公告)日：2021-08-24
申请号：US16322294
申请日：2016-08-02
发明人： Kei Sakanoue , Isao Naruse , Kotaro Nakamura , Masayuki Ueno , Noriyuki Taniyama , Shigekazu Okada
摘要： A current collector monitoring system in one aspect of the present disclosure is provided with: a collected current measurement unit; a collected current state determination unit; an image acquisition unit; an event recognition unit; an event determination unit; and a determination result output unit. When a state of collected current corresponds to an abnormal state, the image acquisition unit acquires an image including, within an angle of view, a collector shoe provided to a current collector.
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公开(公告)号：US10906516B2
公开(公告)日：2021-02-02
申请号：US16115847
申请日：2018-08-29
发明人： Hirokazu Kato , Gakuji Kobayashi , Tomoya Kato
IPC分类号： B60T8/17 , B61H11/14 , B60T8/1761 , B61H11/00 , B60L7/26 , B60L7/18 , B61H13/34 , B61H9/06 , B60L50/53 , B60T1/10 , F16D61/00
摘要： Provided is a brake control system that can reduce use of a mechanical braking in a railway vehicle using an automatic train control (ATC). The present disclosure is a brake control system for a railway vehicle using an ATC. The brake control system includes: a main electric motor, a main conversion device, a brake controller, and an ATC device. The main electric motor generates a braking force by converting kinetic energy of a wheel of the railway vehicle to electrical energy. The main conversion device actuates the main electric motor. The brake controller outputs a braking signal to the main conversion device. The ATC device outputs a braking command to the brake controller based on the ATC. In addition, the ATC device outputs a preliminary braking signal for energizing the main electric motor prior to output of the braking command.
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公开(公告)号：US20200086897A1
公开(公告)日：2020-03-19
申请号：US16616016
申请日：2018-05-22
发明人： Kousuke SAKAGUCHI , Kazuaki FUJITA , Masanori SAWADA , Hironori YOKOTA , Tomohiro OTSUKA , Jun ASANO , Masashi SEKIYA , Seiji KANAMORI
IPC分类号： B61H5/00 , F16D55/2265
摘要： A floating caliper brake device for a railroad vehicle 100 includes: a support frame 1 that has a cylindrical portion 1a; a support pin 2 that is supported by the cylindrical portion 1a in such a manner as to be slidable in a direction X; a caliper 3 that includes a first arm portion 3a and a second arm portion 3b; a first brake shoe 4; a second brake shoe 5 that is opposite to the first brake shoe 4; a pressurizing device 6 that moves the first brake shoe 4 back and forth; an elastic member 7 that is expandable and contractible in the direction X; a stopper member 8 that is immovable relatively to the cylindrical portion 1a in the direction X; and a moving member 9 that is frictionally engaged with the support pin 2 in such a manner as to be slidable in the direction X, wherein end portions on an L side of the elastic member 7 and the stopper member 8 are each supported by the cylindrical portion 1a, at least a portion of an end portion on an R side of the stopper member 8 overlaps the moving member 9 when viewed in the direction X, and an end portion on the R side of the elastic member 7 projects toward the R side from the end portion on the R side of the stopper member 8 and is connected to the moving member 9.
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公开(公告)号：US20200049594A1
公开(公告)日：2020-02-13
申请号：US16534273
申请日：2019-08-07
发明人： Masashi Itoyama , Takeshi Narita , Naotaka Kumagai
摘要： A temperature abnormality detection system includes: measurement devices; and a processor to determine temperature abnormality using a first temperature T1, a second temperature T2, and a third temperature T3. The processor determines occurrence of temperature abnormality when any one of following conditions is satisfied: (A) T1>A0 or T2>A0 or T3 >A0; (B) T1>A1 and (T2−T1>A4 or T2−T1 A2 and T3>A3; (C) T1>A1 and T2−T1>A4 and T3>A3; (D) T1>A1 and T2−T1>A4 and (T3−T2>A5 or T3−T1>A6); and (E) T1>A1 and T2−T1 A7 or T3−T1>A8), where A1
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公开(公告)号：US20200047621A1
公开(公告)日：2020-02-13
申请号：US16534307
申请日：2019-08-07
摘要： The present disclosure provides a collected current monitoring device installed on a railroad vehicle comprising a first current collector and a second current collector. The collected current monitoring device comprises a detector that detects a first current flowing to the first current collector and a second current flowing to the second current collector, and a determiner that determines whether it is necessary to control collected current of the railroad vehicle based on the first current and the second current detected by the detector. The determiner determines that it is necessary to control the collected current when a sum of a first non-energized time during which the first current is not flowing and a second non-energized time during which the second current is not flowing in a specified counting time exceeds a threshold value.
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公开(公告)号：US20190391189A1
公开(公告)日：2019-12-26
申请号：US16447319
申请日：2019-06-20
发明人： Hironobu Sunami , Kazuki Tanaka , Yoshitsugu Morita , Isamu Makara , Yuichi Ahiko , Kotaro Nakamura , Hiroki Shimoyama
摘要： A collected current monitoring device is provided which includes a current-value obtaining unit that obtains a current value I1 and a current value I2, a first RMS-calculation unit that calculates a root mean square RMS1, a second RMS-calculation unit that calculates a root mean square RMS2, an Iu calculation unit that calculates an imbalance current Iu, a change calculation unit that calculates an amount of change ΔIu, an average calculation unit that calculates a time average value aveΔIu, a determining unit that determines whether the time average value aveΔIu is larger than a threshold value, and a signal output unit that outputs an abnormality signal when the time average value aveΔIu is larger than the threshold value.
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公开(公告)号：US10377240B2
公开(公告)日：2019-08-13
申请号：US15771673
申请日：2016-11-01
发明人： Yuichi Ahiko , Kotaro Nakamura , Hiroki Shimoyama
摘要： A collected-current monitoring device includes a current-value obtaining unit for obtaining current values I1 and I2; a first RMS-calculation unit for calculating a root mean square (RMS) 1 of the current value I1 at a window width W; a second RMS-calculation unit for calculating a root mean square (RMS) 2 of the current value I2 at the window width W; a determining unit for determining whether a combination of the RMS 1 and the RMS 2 satisfies an abnormality condition; an abnormality-signal output unit for outputting an abnormality signal when the abnormality condition is satisfied; an information-obtaining unit for obtaining railway vehicle information; and a setting unit for setting a set-parameter that includes at least one of the window width W or the abnormality condition depending on the railway vehicle information.
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