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公开(公告)号：US10982946B2
公开(公告)日：2021-04-20
申请号：US16194151
申请日：2018-11-16
Applicant: ALSTOM Transport Technologies
Inventor： Davide Barlini , Giacomo Maccalli
Abstract: System for measuring motor bearings consumption of railway vehicles, comprising: a phonic wheel, arranged to be fixed to a shaft of a rotor, having a profile including an alternation of teeth and holes; a sensor, arranged to measure a punctual air-gap between the teeth of the phonic wheel and said sensor during rotation of the shaft, said sensor generating a basic sinusoidal signal function of said profile, wherein the basic sinusoidal signal is superimposed to a modulating wave, representative of a radial motion of the shaft, the basic signal and the modulating wave forming a complete signal; characterized in that the sensor further comprises: a control unit arranged to measure a maximum and a minimum amplitude value of the complete signal, said maximum and minimum amplitude values representing the maximum and minimum air-gap between the phonic wheel and the sensor, and for calculating an air-gap swing value; memory means arranged to store said air-gap swing value; wherein said sensor is arranged to send to an external control unit said air-gap swing value when the shaft stops rotating.
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公开(公告)号：US10048303B2
公开(公告)日：2018-08-14
申请号：US15346128
申请日：2016-11-08
Applicant: Alstom Transport Technologies
Inventor： Davide Barlini , Donato-Carlo Loguercio
Abstract: A system for monitoring a pantograph of a railway vehicle, the pantograph being adapted to be connected to a catenary and electrically connected to a traction unit, the catenary being adapted to provide an alternating current to the railway vehicle, the system further including: a voltage step detection device for detecting a voltage step of a pantograph voltage at the pantograph, a zero crossing detection device for detecting a zero crossing of a line current, the line current being a portion of a pantograph current provided to the traction unit, the pantograph current being the current flowing through the pantograph; and a bouncing detection portion adapted to determine at least one bouncing time of the pantograph based on one or more detected voltage steps of the voltage step detection device and/or one or more detected zero crossings of the zero crossing detection device.
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Patent Agency Ranking
公开(公告)号：US20190154426A1
公开(公告)日：2019-05-23
申请号：US16194151
申请日：2018-11-16
Applicant: ALSTOM Transport Technologies
Inventor： Davide Barlini , Giacomo Maccalli
Abstract: System for measuring motor bearings consumption of railway vehicles, comprising: a phonic wheel, arranged to be fixed to a shaft of a rotor, having a profile including an alternation of teeth and holes; a sensor, arranged to measure a punctual air-gap between the teeth of the phonic wheel and said sensor during rotation of the shaft, said sensor generating a basic sinusoidal signal function of said profile, wherein the basic sinusoidal signal is superimposed to a modulating wave, representative of a radial motion of the shaft, the basic signal and the modulating wave forming a complete signal; characterized in that the sensor further comprises: a control unit arranged to measure a maximum and a minimum amplitude value of the complete signal, said maximum and minimum amplitude values representing the maximum and minimum air-gap between the phonic wheel and the sensor, and for calculating an air-gap swing value; memory means arranged to store said air-gap swing value; wherein said sensor is arranged to send to an external control unit said air-gap swing value when the shaft stops rotating.
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4.发明申请ELECTRICAL POWER SUPPLY SYSTEM FOR AN ELECTRICALLY PROPELLED VEHICLE AND METHODS OF CONTROLLING SUCH AN ELECTRICAL POWER SUPPLY SYSTEM 有权用于电动螺旋桨车辆的电力供应系统和控制这种电力供应系统的方法公开(公告)号：US20160304000A1
公开(公告)日：2016-10-20
申请号：US15133856
申请日：2016-04-20
Applicant: ALSTOM TRANSPORT TECHNOLOGIES
Inventor： Davide Barlini , Michele Losito
Abstract: An electrical power supply system for an electrically propelled vehicle provided with a traction unit and an electrical connector and moving along a circulation rail includes an external power supply zone having a supply line extending along the circulation rail for connection with the electrical connector, and an autonomous power supply zone, located after the external power supply zone along the circulation rail. The supply line includes a main section. The supply line includes a terminal section, extending along the circulation rail in the external power supply zone at least between a first end of the main section and the autonomous power supply zone, for connection with the electrical connector, and a diode, electrically connecting the first end of the main section and a second end of the terminal section and designed to let an electrical current pass through from the main section to the terminal section.
Abstract translation: 一种用于具有牵引单元和电连接器并沿着循环轨道运动的电动推进车辆的电力供应系统，具有外部供电区域，该外部供电区域具有沿循环轨道延伸的供应管线，用于与电连接器连接， 电源区，位于沿着循环轨道的外部电源区之后。 电源线包括主要部分。 供电线包括端子部分，其至少在主部分的第一端和自主供电区之间沿着外部供电区域中的循环导轨延伸，用于与电连接器连接;以及二极管，电连接 主部分的第一端和端子部分的第二端，并且被设计成使得电流从主部分通过到端子部分。
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公开(公告)号：US10910977B2
公开(公告)日：2021-02-02
申请号：US15998538
申请日：2018-08-16
Applicant: ALSTOM Transport Technologies
Inventor： Davide Barlini
Abstract: The present invention relates to a method for determining a state of a bearing of a three phase electric machine, the electric machine having a rotor, which is supported by the bearing, the electric machine being connected to a three phase inverter for supplying the electric machine with electric power, the three phase inverter being controlled to apply a pulse width modulation with a predefined scheme to create three phase currents, the method comprises: —determining a first phase current provided to the electric machine; —determining a second phase current provided to the electric machine, the second phase current being different to the first phase current; —determining the power spectral density of the park's vector based on the first phase current and the second phase current; —determining an amplitude of the power at a predefined frequency of the power spectral density, wherein the predefined frequency depends on the rotational speed of the rotor and the scheme of the pulse width modulation; —comparing the amplitude of the power at the predefined frequency with a predefined power value; and—determining, based on the comparison, whether a failure of the bearing has occurred or the bearing is degraded.
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公开(公告)号：US09713966B2
公开(公告)日：2017-07-25
申请号：US15133856
申请日：2016-04-20
Applicant: ALSTOM TRANSPORT TECHNOLOGIES
Inventor： Davide Barlini , Michele Losito
Abstract: An electrical power supply system for an electrically propelled vehicle provided with a traction unit and an electrical connector and moving along a circulation rail includes an external power supply zone having a supply line extending along the circulation rail for connection with the electrical connector, and an autonomous power supply zone, located after the external power supply zone along the circulation rail. The supply line includes a main section. The supply line includes a terminal section, extending along the circulation rail in the external power supply zone at least between a first end of the main section and the autonomous power supply zone, for connection with the electrical connector, and a diode, electrically connecting the first end of the main section and a second end of the terminal section and designed to let an electrical current pass through from the main section to the terminal section.
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7.发明申请公开(公告)号：US20170131337A1
公开(公告)日：2017-05-11
申请号：US15346128
申请日：2016-11-08
Applicant: Alstom Transport Technologies
Inventor： Davide Barlini , Donato-Carlo Loguercio
CPC classification number: G01R31/008 , B60L3/0023 , B60L5/045 , B60L5/24 , B60L2200/30 , B60M1/12 , G01R31/04 , G01R31/14 , G01R31/44
Abstract: A system for monitoring a pantograph of a railway vehicle, the pantograph being adapted to be connected to a catenary and electrically connected to a traction unit, the catenary being adapted to provide an alternating current to the railway vehicle, the system further including: a voltage step detection device for detecting a voltage step of a pantograph voltage at the pantograph, a zero crossing detection device for detecting a zero crossing of a line current, the line current being a portion of a pantograph current provided to the traction unit, the pantograph current being the current flowing through the pantograph; and a bouncing detection portion adapted to determine at least one bouncing time of the pantograph based on one or more detected voltage steps of the voltage step detection device and/or one or more detected zero crossings of the zero crossing detection device.
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