JP2006080215A - Power electronics system for vehicle and noise controlling method therefor - Google Patents

Power electronics system for vehicle and noise controlling method therefor Download PDF

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Publication number
JP2006080215A
JP2006080215A JP2004261142A JP2004261142A JP2006080215A JP 2006080215 A JP2006080215 A JP 2006080215A JP 2004261142 A JP2004261142 A JP 2004261142A JP 2004261142 A JP2004261142 A JP 2004261142A JP 2006080215 A JP2006080215 A JP 2006080215A
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high
housing
motor
power
vehicle
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Withdrawn
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JP2004261142A
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Japanese (ja)
Inventor
Kentaro Hata
Yasuaki Hayami
Kraisorn Throngnumchai
トロンナムチヤイ クライソン
泰明 早見
賢太郎 秦
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Nissan Motor Co Ltd
日産自動車株式会社
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Priority to JP2004261142A priority Critical patent/JP2006080215A/en
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Application status is Withdrawn legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a power electronics system for vehicle from which a high frequency potential change is not transmitted to a vehicle. <P>SOLUTION: Power which has been converted from DC to AC by means of an inverter 1 is supplied to a motor 2 via three shield lines 3. The inverter and the motor are stored separately in metallic housings 4 and 5, respectively. The housings 4 and 5 are earthed to the vehicle 8 via earth lines 6 and 7. The shield lines are passed through through-holes formed in the housing 4 and 5 while being electrically insulated from the housings 4 and 5 by an insulation material 23. A core wire 11 at the end of each shield line 3 is connected to the terminal of the inverter or the motor. A shield layer 12 at the end of each shield line 3 introduced into the housing 4 is earthed to the housing 4 via a high-frequency reactor 21. High-frequency waves generated in the core wire by switching operation of the inverter induce the high-frequency potential change in the shield layer. However, the high-frequency potential change is absorbed by the high-frequency reactors and is never transmitted to the vehicle via the earth line 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a power electronics system for a vehicle that converts a direct current power source into alternating current by a power converter and supplies power to a motor, and a noise suppression method thereof.

  In a power electronics system in which DC power is converted into AC power by a power converter (hereinafter referred to as an inverter), and the AC power is supplied to the motor through a power supply line, the inverter and the motor are usually made of conductive metal. The housings are grounded to the ground.

In the inverter, AC power is generated from DC power by switching the semiconductor switch. Due to the above switching in the inverter, the common mode current flows through the path of the inverter → feed line → motor winding → motor casing → ground wire of the motor casing → ground → ground wire of the inverter casing → inverter casing → inverter.
This common mode current generates radiation noise and may adversely affect external devices. In order to suppress this, for example, a common mode choke is connected to a power supply line that supplies power from the inverter to the motor.
However, since the common mode choke becomes a part of a high power feeding path from the inverter to the motor, it is necessary to increase the size of the common mode choke accordingly.
Therefore, the common mode choke is a factor that hinders downsizing and cost reduction of the system.

In view of this, a power electronics system has been proposed that reduces radiation noise due to common mode current by using a shield wire as a power supply line instead of using a common mode choke (see Patent Document 1).
In that case, the core wire of the shield wire is connected to the respective terminals of the inverter and the motor, and the shield layer of the shield wire is connected to the respective housings of the inverter and the motor. The inverter and motor housings are grounded to the ground.
By connecting in this way, a common mode current flows from the inverter to the motor, and then the common mode current flows through the motor housing → motor housing ground wire → ground → inverter housing ground wire → inverter housing → inverter path. Rather, the common mode current flowing through the path of the motor housing → shield layer → inverter housing → inverter becomes more dominant. As a result, the magnetic field generated by the common mode current flowing through the core wire of the shield wire and the shield layer cancels out, and radiation noise radiated from the feeder line is suppressed.
Japanese Patent Laid-Open No. 10-135681

However, the conventional technology assumes the case of stationary heavy electrical equipment in factories, etc., and the inverter and motor housings are grounded to the ground where the potential fluctuation is very small. The potential fluctuation transmitted through the ground line to this system is extremely small.
On the other hand, when this connection technology is applied to a vehicle power electronics system, the same effect is not necessarily obtained. In the power electronics system for a vehicle, the casing of the inverter and the casing of the motor are grounded to the vehicle body, and the vehicle body has an impedance having a certain size with the ground. In other words, since there are portions where the impedance cannot be lowered, such as rubber tires and axle bearings, the potential of the vehicle body is floating with respect to the ground.

Therefore, voltage fluctuations caused by switching in the inverter are transferred to the weak electric system via the electrostatic capacitance between the core wire of the shield wire and the shield layer → the housing → the vehicle body → the vehicle body and the weak electric signal line. The transmitted potential fluctuation becomes very large, unlike the case where the ground is grounded. Therefore, there is a possibility of adversely affecting a weak electric system mounted on the same vehicle body.
In order to solve the above-described problems, an object of the present invention is to provide a vehicle power electronics system in which high-frequency potential fluctuations due to switching in an inverter are not transmitted to a vehicle body, and a noise suppression method thereof.

  Therefore, the present invention provides a power electronics system for a vehicle that converts DC power into AC power by a power converter and supplies power to the motor. The power converter and the motor are each made of an individual conductive metal casing. Installed in the body, each housing is electrically connected to a conductive metal car body, the AC power supply line to the motor is composed of a shield wire, and the shield layer of the shield wire is a high-frequency transmission suppression means It is assumed that it is electrically connected to at least one of the casing of the power conversion device and the casing of the motor via the.

  According to the present invention, the shield layer of the shield wire of the power electronics system is connected to at least one of the casing of the power converter and the casing of the motor via the high-frequency transmission suppressing means. The high frequency transmitted from the power supply line to the power supply line is absorbed by the high frequency transmission suppressing means and is not transmitted to each casing. As a result, the vehicle body whose casing is grounded does not cause a potential fluctuation due to the high frequency, and the high frequency can be prevented from propagating to the weak electric signal line wired near the vehicle body.

  Hereinafter, embodiments of the present invention will be described by way of examples.

FIG. 1 is a power supply system diagram between an inverter and a motor of the vehicle power electronics system according to the first embodiment. FIG. 2 is a detailed view of a portion X in FIG.
The electric power converted from direct current to alternating current by the inverter 1 which is a power conversion device is fed to the motor 2 through the three shield wires 3 which are feed lines. The inverter 1 and the motor 2 are individually stored by conductive metal casings 4 and 5 that are insulated from the inverter 1 or the motor 2.
The casings 4 and 5 are grounded to the vehicle body 8 by ground wires 6 and 7.
The shield wire 3 covers the core wire 11 with an insulating material 13 (see FIG. 2), and is further covered with a shield layer 12 made of a conductive metal outside the insulating material 13. The shield layer 12 is, for example, a knitted wire obtained by knitting a conductive fine metal wire into a cylindrical shape.
The shield layer 12 suppresses electromagnetic waves from being emitted from the core wire 11 to the outside.

As shown in FIG. 2, each shield wire 3 passes through a through hole provided in the housing 4 while being electrically insulated from the housing 4 by an insulating material 23. The core wire 11 is exposed at the end portion of the shield wire 3 led into the housing 4 through the through hole, and is connected to the terminal of the inverter 1. The shield layer 12 at the end of the shield wire 3 is electrically connected to the housing 4 by a ground wire 22 via a high frequency reactor 21 that is a high frequency transmission suppressing means. Hereinafter, a coil in which a copper wire is wound around a magnetic core is referred to as a high frequency reactor.
A power supply line from a DC power source such as a battery to the inverter 1 is not shown.

  Similarly, on the motor 2 side, the shield wire 3 passes through a through hole provided in the housing 5 while being electrically insulated from the housing 5 by an insulating material. The end portion of the shield wire 3 led into the housing 5 through the through hole has the core wire 11 exposed and connected to the terminal of the motor 2. However, the shield layer 12 at the end of the shield wire 3 is not grounded to the housing 5 using the high frequency reactor 21 and is in a floating state.

  The setting of the high-frequency transmission suppression characteristic of the high-frequency reactor 21 is performed by installing the high-frequency reactor 21 having a characteristic selected based on calculation in advance. When a potential fluctuation is detected, a high-frequency reactor having a characteristic effective for the frequency is selected to further suppress the high-frequency potential fluctuation.

The operation of this embodiment will be described with reference to FIGS.
FIG. 3 is a diagram for explaining the operation of this embodiment.
The three shield wires 3 prevent electromagnetic waves from being emitted from the core wire 11 to the outside by the shield layer 12 grounded to the housing 4. When the shield wire 3 is connected to the terminal of the inverter 1 or the motor 2, the shield wire 3 is guided to the inside through the through holes of the housings 4 and 5, and the core wire 11 is insulated from the shield layer 12 and the insulation in the housings 4 and 5. Since it is performed after being stripped from the material 13, the casings 4 and 5 shield high frequency noise radiated from the core wire 11 to the outside.

The inverter 1 is supplied with DC power from a DC power source, and generates three-phase AC power by switching of a semiconductor switch in the inverter 1. The voltage change due to the switching propagates through the core wire 11 of the shield wire 3. A capacitance is formed between the core wire 11 of the shield wire 3 and the shield layer 12 (see FIG. 3), and the voltage fluctuation of the core wire 11 induces the potential fluctuation of the shield layer 12.
Since the shield layer 12 is not directly grounded to the housings 4 and 5 and is grounded to the housing 4 via the high-frequency reactor 21 by the ground wire 22 inside the housing 4, the high-frequency generated in the shield layer 12 is not affected. The potential fluctuation is converted into thermal energy and absorbed by the high frequency reactor 21, and the propagation of the high frequency potential fluctuation to the vehicle body 8 through the housing 4 and the ground wire 6 is suppressed.

As described above, according to the present embodiment, the potential fluctuation on the vehicle body 8 side via the grounding wire 6 of the housing 4 based on the high-frequency voltage change generated by the inverter 1 is suppressed. Propagation of high frequency to the signal line 31 due to capacitive coupling 32 between the other weak electric signal line 31 and the vehicle body 8 can be suppressed.
Moreover, the setting of the high-frequency transmission suppression characteristic of the high-frequency reactor 21 at the time of design is only required by replacing the high-frequency reactor 21 as necessary. No work is required.

FIG. 4 is a power supply system diagram between the inverter and the motor of the power electronics system of the second embodiment.
The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The difference from the first embodiment is that the shield layer 12 of the shielded wire 3 is grounded inside the housing 4 on the inverter 1 side through the high-frequency reactor 21 inside the housing 5 on the motor 2 side. This is a point to be performed on the housing 5.

Also in the present embodiment, as in the first embodiment, the shield layer 12 is not directly grounded to the housings 4 and 5, and the housing 5 through the high-frequency reactor 21 by the ground wire 22 inside the housing 5. 5, the high-frequency potential fluctuation generated in the shield layer 12 is converted into thermal energy and absorbed by the high-frequency reactor 21, and the high-frequency potential fluctuation propagates to the vehicle body 8 via the housing 5 and the ground wire 7. To be suppressed.
As a result, as in the first embodiment, high-frequency propagation to the signal line 31 due to capacitive coupling between the other weak-electric signal lines 31 wired in the vicinity of the vehicle body 8 and the vehicle body 8 is prevented. Can be suppressed.
Similarly to the first embodiment, the setting of the high-frequency transmission suppression characteristic of the high-frequency reactor 21 at the time of design is only required to replace the high-frequency reactor 21 as necessary, and the shielded wire is used to correct the high-frequency transmission suppression characteristic. No complicated repair work such as removal and replacement of 3 is required.

FIG. 5 is a power supply system diagram between the inverter and the motor of the power electronics system of the third embodiment.
The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The difference from the first embodiment is that the shield layer 12 of the shield wire 3 is grounded via the high frequency reactor 21 both inside the case 4 on the inverter 1 side and inside the case 5 on the motor 2 side. This is a point to be performed on the casings 4 and 5.

Also in the present embodiment, as in the first embodiment, the shield layer 12 is not directly grounded to the housings 4, 5, but via the high-frequency reactor 21 by the ground wire 22 inside the housings 4, 5. Since the casings 4 and 5 are grounded, high-frequency potential fluctuations are prevented from propagating to the vehicle body 8 via the casings 4 and 5 and the grounding wires 6 and 7.
As a result, as in the first embodiment, high-frequency propagation to the signal line 31 due to capacitive coupling between the other weakly-powered signal line 31 wired in the vicinity of the vehicle body 8 and the vehicle body 8 is prevented. Can be suppressed.
Similarly to the first embodiment, the setting of the high-frequency transmission suppression characteristic of the high-frequency reactor 21 at the time of design is only required to replace the high-frequency reactor 21 as necessary, and the shielded wire is used to correct the high-frequency transmission suppression characteristic. No complicated repair work such as removal and replacement of 3 is required.

FIG. 6 is a power supply system diagram between the inverter and the motor of the power electronics system of the fourth embodiment.
The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The difference from the first embodiment is that the three core wires 11 are separated by an insulating material 13 as a power supply line for supplying power from the inverter 1 to the motor 2, and are bundled into one, and the entire bundle is a common shield. The shield wire 3 'covered with the layer 12' is used. The shield layer 12 ′ of the shielded wire 3 ′ is grounded to the housing 4 through the high frequency reactor 21 inside the housing 4 on the inverter 1 side.
In the present embodiment, since the shield layer 12 'of the three-phase AC power supply line is shared, the three individual shield lines 3 are provided as in the first to third embodiments. Compared with the case where it is used, the potential fluctuation induced by the shield layer 12 ′ is canceled and attenuated between the phases.

As in the first embodiment, the shield layer 12 ′ of the shield wire 3 ′ is not directly grounded to the housings 4, 5, but the housing 4 via the high frequency reactor 21 by the ground wire 22 inside the housing 4. 4, the high-frequency potential fluctuation is prevented from propagating to the vehicle body 8 through the housing 4 and the grounding wire 6.
As a result, as in the first embodiment, high-frequency propagation to the signal line 31 due to capacitive coupling between the other weakly-powered signal line 31 wired in the vicinity of the vehicle body 8 and the vehicle body 8 is prevented. Can be suppressed.
Similarly to the first embodiment, the setting of the high-frequency transmission suppression characteristic of the high-frequency reactor 21 at the time of design is only required to replace the high-frequency reactor 21 as necessary, and the shielded wire is used to correct the high-frequency transmission suppression characteristic. No complicated repair work such as removal and replacement of 3 is required.

Further, since the shield layer 12 'of the three-phase AC power supply line is made common, the potential fluctuation induced by the shield layer 12' can be reduced, so that a high frequency reactor necessary for attenuation to the required level of the high frequency potential fluctuation is provided. Can be small.
In this embodiment, the three core wires 11 are combined into one bundle with the insulating material 13, but the present invention is not limited to this. Three cables each individually covering the core wire 11 with the insulating material 13 are shared. Or a shielded wire 3 ′ covered with a shield layer 12 ′ with respect to a coaxial three-phase cable.

  Further, as a modification of the fourth embodiment, instead of grounding the shield layer 12 ′ inside the housing 4, the grounding wire 22 is grounded to the housing 5 via the high-frequency reactor 21 inside the housing 5. Also good. As another modification, the shield layer 12 ′ may be grounded to each of the housings 4 and 5 by the ground wire 22 through the high-frequency reactor 21 in both the housing 4 and the housing 5.

Next, a modified example of the configuration around the through hole of the housing for guiding the shield wire into the housing in the first to fourth embodiments will be described with reference to FIG.
In the modification shown in (a), the thickness of the insulating material 23 and the thickness of the metal wall of the casing 4 (5) in the predetermined range around the through hole are made thinner than those outside the predetermined range, and the penetration is made. The cross-sectional area of the wall of the housing facing the shield layer 12 (12 ′) is reduced in part.
In the modification shown in (b), the thickness of the insulating material 23 of the casing 4 (5) around the through hole is made thin, and the wall of the casing 4 (5) in a predetermined range around the through hole is made of the metal mesh 24. As described above, the cross-sectional area of the wall of the housing facing the shield layer 12 at the penetrating portion is reduced. Note that the wire mesh 24 is a mesh with which radiation noise from the inside of the housing 4 (5) does not leak outside. For example, the size (maximum width) of the mesh is set to 1/20 or less of the wavelength of the radiation noise in question.

  A wall in a predetermined range around the through hole for the shield wire 3 of the housing 4 (5) is configured as shown in FIGS. 7A and 7B, so that the shield layer 12 and the housing 4 (5) are formed. Can be suppressed and reduced, and induction of high-frequency potential fluctuations to the housing 4 (5) can be suppressed.

FIG. 8 is a power supply system diagram between the inverter and the motor of the power electronics system of the fifth embodiment. FIG. 9 is a detailed view of a Y portion in FIG.
The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The difference from the first embodiment is that instead of grounding the shield layer 12 inside the housing 4 on the inverter 1 side to the housing 4 via the high-frequency reactor 21 with the ground wire 22, an inductance element 21 ′ is provided. It is a point to use for the housing | casing 4 using.
Here, the inductance element 21 ′ indicates an air-core coil or a coiled wire harness. The air-core coil and wire harness can easily obtain desired high-frequency transmission suppression characteristics by adjusting the length and winding.

Also in the present embodiment, as in the first embodiment, the shield layer 12 of the shield wire 3 is not directly grounded to the housings 4 and 5, and the housing 4 is formed by the inductance element 21 ′ inside the housing 4. Therefore, the high-frequency potential fluctuation generated in the shield layer 12 is converted into thermal energy and absorbed by the inductance element 21 ′, and the high-frequency potential fluctuation propagates to the vehicle body 8 via the housing 4 and the ground wire 6. To be suppressed.
As a result, as in the first embodiment, high-frequency propagation to the signal line 31 due to capacitive coupling between the other weak-electric signal lines 31 wired in the vicinity of the vehicle body 8 and the vehicle body 8 is prevented. Can be suppressed.
Similarly to the first embodiment, the setting of the high-frequency transmission suppression characteristic of the inductance element 21 ′ at the time of design can be performed only by replacing the inductance element 21 ′ as necessary. No complicated repair work such as removal and replacement of the shield wire 3 is required.

Further, as a modification of the fifth embodiment, instead of grounding the shield layer 12 inside the housing 4, the inductance layer 21 ′ may ground the shield layer 12 inside the housing 5. As another modification, the inductances 21 ′ may be grounded to the casings 4 and 5 in both the casing 4 and the casing 5.
Further, an inductance element 21 ′ may be used instead of the high frequency reactor 21 for the fourth embodiment and its modification.

1 is a power supply system diagram between an inverter and a motor in a vehicle power electronics system according to a first embodiment of the present invention. It is a figure which shows the X section detail of FIG. It is a figure explaining the effect | action of a 1st Example. It is a electric power feeding system diagram between the inverter and motor of the vehicle power electronics system of the 2nd Example of this invention. It is a electric power feeding system diagram between the inverter and motor of the power electronics system for vehicles of the 3rd Example of this invention. It is a electric power feeding system diagram between the inverter and motor of the power electronics system for vehicles of the 4th Example of this invention. It is a figure which shows the modification of a structure around the through-hole of a housing | casing. It is the electric power feeding system diagram between the inverter and motor of the power electronics system for vehicles of the 5th Example of this invention. It is a figure which shows the Y section detail of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Inverter 2 Motor 3, 3 'Shield wire 4, 5 Case 6, 7, 22 Ground wire 8 Car body 11 Core wire 12, 12' Shield layer 13, 23 Insulation material 21 High frequency reactor 21 'Inductance element (wire harness)
31 signal line 32 capacitive coupling

Claims (8)

  1. In a power electronics system for vehicles that converts DC power into AC power with a power converter and supplies power to the motor,
    The power converter and the motor are each installed in a separate conductive metal casing, and each casing is electrically connected to a conductive metal vehicle body,
    The AC power supply line to the motor is formed of a shielded wire, and the shield layer of the shielded wire transmits high frequency to at least one of the case of the power converter and the case of the motor. A power electronics system for a vehicle, characterized in that it is electrically connected via a suppression means.
  2. The core wire of the shield wire has a number corresponding to the number of phases of the AC power, and the shield layer is formed by wrapping core wires for all phases with a common shield layer. The vehicle power electronics system described.
  3. The vehicle power electronics system according to claim 1, wherein the high-frequency transmission suppressing unit is a high-frequency reactor.
  4. The vehicle power electronics system according to claim 1 or 2, wherein the high-frequency transmission suppression means is a coiled wire harness.
  5. The shielded wire is electrically insulated from the through hole of the housing and guided to the inside of the housing, and a shield layer at an end of the shielding wire is inside the housing via the high-frequency transmission suppressing means. 5. The vehicle power electronics system according to claim 1, wherein the vehicle power electronics system is electrically connected to a body.
  6. 6. The vehicle power electronics system according to claim 5, wherein a wall thickness in a predetermined range around the through hole of the housing is thinner than a wall thickness outside the predetermined range.
  7. 6. The vehicle power electronics system according to claim 5, wherein a wall in a predetermined range around the through hole of the housing is formed of a conductive metal net.
  8. In a noise suppression method in a vehicle power electronics system that converts DC power into AC power by a power converter and feeds the motor,
    Power is supplied to the motor from the power conversion device installed in a separate conductive metal casing with a shield wire,
    Each housing is grounded to the vehicle body,
    A shield layer of a shield wire that supplies AC power to the motor is electrically connected to at least one of the casing of the power converter and the casing of the motor via high-frequency transmission suppression means. A method for suppressing noise in a vehicular power electronics system, characterized in that it is possible to prevent high-frequency potential fluctuations occurring in the shield layer of the shield wire from propagating from the housing to the vehicle body.
JP2004261142A 2004-09-08 2004-09-08 Power electronics system for vehicle and noise controlling method therefor Withdrawn JP2006080215A (en)

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US9112402B2 (en) 2009-12-25 2015-08-18 Hitachi Automotive Systems, Ltd. Power conversion apparatus
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JP2013074752A (en) * 2011-09-28 2013-04-22 Nissan Motor Co Ltd Power conversion device
US9373998B2 (en) 2011-09-28 2016-06-21 Nissan Motor Co., Ltd. Power conversion device
JP2014017984A (en) * 2012-07-10 2014-01-30 Sumitomo Heavy Ind Ltd Electric power conversion apparatus and shovel equipped with the same
WO2014115773A1 (en) * 2013-01-23 2014-07-31 矢崎総業株式会社 Noise-reducing shielded cable
JP2014143821A (en) * 2013-01-23 2014-08-07 Yazaki Corp Noise reduction shield cable
CN104937828A (en) * 2013-01-23 2015-09-23 矢崎总业株式会社 Noise-reducing shielded cable
US9603293B2 (en) 2013-01-23 2017-03-21 Yazaki Corporation Noise-reducing shielded cable
DE102013201470A1 (en) * 2013-01-30 2014-07-31 Bayerische Motoren Werke Aktiengesellschaft N-phase inverter and N-phase electric machine integrated vehicle, has phase conductors connected with electrical leading conductor system, which is electrically isolated from phase conductors and parallely arranged to phase conductors
JP2016039743A (en) * 2014-08-11 2016-03-22 日産自動車株式会社 Power supply apparatus
JP2016092924A (en) * 2014-10-31 2016-05-23 日産自動車株式会社 Power conversion device
US10541664B2 (en) 2015-07-09 2020-01-21 Autonetworks Technologies, Ltd. Conductive path with noise filter
WO2017006496A1 (en) * 2015-07-09 2017-01-12 株式会社オートネットワーク技術研究所 Conduction path with noise filter
WO2017006497A1 (en) * 2015-07-09 2017-01-12 株式会社オートネットワーク技術研究所 Noise filter-equipped conductive path
JP5850356B1 (en) * 2015-07-09 2016-02-03 株式会社オートネットワーク技術研究所 Conductive path with noise filter
JP5850355B1 (en) * 2015-07-09 2016-02-03 株式会社オートネットワーク技術研究所 Conductive path with noise filter
US10382001B2 (en) 2015-07-09 2019-08-13 Autonetworks Technologies, Ltd. Conductive path with noise filter
WO2017056887A1 (en) * 2015-09-28 2017-04-06 株式会社オートネットワーク技術研究所 Conductive path with noise filter
WO2017056886A1 (en) * 2015-09-28 2017-04-06 株式会社オートネットワーク技術研究所 Electrically conductive path with noise filter
WO2019233824A1 (en) 2018-06-05 2019-12-12 Volkswagen Ag High-voltage system in a motor vehicle

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