JP5030749B2 - Vehicle cart - Google Patents

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JP5030749B2
JP5030749B2 JP2007310305A JP2007310305A JP5030749B2 JP 5030749 B2 JP5030749 B2 JP 5030749B2 JP 2007310305 A JP2007310305 A JP 2007310305A JP 2007310305 A JP2007310305 A JP 2007310305A JP 5030749 B2 JP5030749 B2 JP 5030749B2
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motor
gear
intermediate gear
direct
motors
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JP2009132289A (en
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信吾 牧島
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Toyo Electric Manufacturing Ltd
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Toyo Electric Manufacturing Ltd
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Description

本発明は、車両用台車内の二台の同期電動機を一台の電力変換装置で駆動するための技術である。   The present invention is a technique for driving two synchronous motors in a vehicle carriage with a single power converter.

図７に一例として従来の技術による車両用台車の構成図を示し、この図に基づいて従来の技術を説明する。   FIG. 7 shows a configuration diagram of a vehicle carriage according to the prior art as an example, and the prior art will be described based on this figure.

走行車輪を有する第一車軸１及び第二車軸２は、台車枠３に軸受け及びばねを介して支持される。   The first axle 1 and the second axle 2 having traveling wheels are supported by the carriage frame 3 via bearings and springs.

第一車軸１に第一車軸歯車４が第二車軸２に第二車軸歯車５が結合されている。   A first axle gear 4 is coupled to the first axle 1, and a second axle gear 5 is coupled to the second axle 2.

第一電動機６の回転部には第一電動機歯車８が結合され、第一車軸歯車４と第一電動機歯車８は歯車がかみ合って動力伝達が可能となっている。同様に第二電動機７の回転部には第二電動機歯車９が結合され、第二車軸歯車５と第二電動機歯車９は歯車がかみ合って動力伝達が可能となっている。   A first motor gear 8 is coupled to the rotating portion of the first motor 6, and the first axle gear 4 and the first motor gear 8 are engaged with each other so that power can be transmitted. Similarly, the second motor gear 9 is coupled to the rotating portion of the second motor 7, and the second axle gear 5 and the second motor gear 9 are engaged with each other so that power can be transmitted.

上記構成により、第一車軸１は第一電動機６によって、第二車軸２は第二電動機７によって駆動される。
[特許文献１]特開平６−６４５３７号公報 With the above configuration, the first axle 1 is driven by the first electric motor 6 and the second axle 2 is driven by the second electric motor 7.
[Patent Document 1] JP Rights 6-64537 JP

第一電動機６及び第二電動機７に同期電動機を用い両者を一台の電力変換装置で駆動した場合、回転速度や回転角に差が出ると第一電動機６と第二電動機７を同時に制御することができなくなる。   When synchronous motors are used for the first motor 6 and the second motor 7 and both are driven by a single power conversion device, the first motor 6 and the second motor 7 are simultaneously controlled when there is a difference in rotational speed or rotational angle. I can't do that.

第一電動機６及び第二電動機７に同期電動機を用いた場合、図８のように第一電動機６と第二電動機７を異なる電力変換装置によって駆動することにより両者を制御可能となるが、電力変換装置が二台になるため車体重量の増加やコスト増加へとつながる。   When a synchronous motor is used for the first motor 6 and the second motor 7, both can be controlled by driving the first motor 6 and the second motor 7 with different power converters as shown in FIG. Since two conversion devices are used, the vehicle weight increases and costs increase.

本発明は第一電動機６及び第二電動機７に同期電動機を用いた場合でも両者を一台の電力変換装置で駆動し制御可能にするためのものである。   In the present invention, even when a synchronous motor is used for the first motor 6 and the second motor 7, both are driven by a single power converter so as to be controllable.

請求項１の発明によれば、走行車輪を有する二つの車軸を有し、該二つの車軸が各々個別の電動機及び個別の駆動歯車装置によって駆動される車両用台車において、前記二つ電動機の間に中間軸及び中間歯車を設け、該二つの電動機は同一の電力変換装置で制御され該中間軸及び該中間歯車を介して機械的に結合されることを特徴とする。   According to the first aspect of the present invention, there is provided a vehicular carriage having two axles having traveling wheels, each of which is driven by an individual electric motor and an individual drive gear device, between the two electric motors. An intermediate shaft and an intermediate gear are provided, and the two electric motors are controlled by the same power converter and mechanically coupled via the intermediate shaft and the intermediate gear.

請求項２の発明によれば、前記二つの電動機の軸は進行方向に対し直交方向であり一方の電動機ともう一方の電動機が逆方向に回転出力軸を有することを特徴とする請求項１記載の車両用台車。 According to the invention of claim 2, claim 1 is the axis of the front SL two electric motors, characterized in that the other motor that there is one motor in a direction orthogonal to the traveling direction has a rotary output shaft in the reverse direction The vehicle carriage described .

請求項３の発明によれば、前記中間軸が車軸に対して斜めに設置されたことを特徴とする請求項２記載の車両用台車。 According to the invention of claim 3, the vehicle bogie according to claim 2, wherein the pre-Symbol intermediate shaft is characterized in that it is installed obliquely to the axle.

請求項４の発明によれば、前記電動機と前記駆動歯車装置の間に各々継手と電動機中間歯車を有し、前記電動機中間歯車と前記中間歯車がかみあわされており、前記二つの電動機、前記二つの電動機中間歯車、前記中間軸及び前記中間歯車が台車に装荷されることを特徴とする請求項１から請求項３のいずれか記載の車両用台車。 According to the invention of claim 4, each have a joint and a motor intermediate gear, wherein the electric motor intermediate gear and said intermediate gear is engaged, the two motor between the motor the driving gear unit, the two The vehicle carriage according to any one of claims 1 to 3 , wherein two motor intermediate gears, the intermediate shaft, and the intermediate gear are loaded on the carriage.

請求項５の発明によれば、走行車輪を有する二つの車軸を有し、該二つの車軸に各々直結された二つの直結電動機によって駆動される車両用台車において、前記二つの車軸の間に中間軸及び中間歯車を設け、該二つの直結電動機は同一の電力変換装置で制御され、前記二つの車軸は該中間軸と該中間歯車を介して機械的に結合されることを特徴とする車両用台車。 According to the invention of claim 5, having two axles with running wheels, the vehicle bogie driven by each directly connected the two direct motors to the two axles, intermediate between the two axles A vehicle having a shaft and an intermediate gear, wherein the two direct-coupled motors are controlled by the same power converter, and the two axles are mechanically coupled to the intermediate shaft via the intermediate gear . Trolley .

請求項６の発明によれば、前記二つの電動機のうち一方の電動機ともう一方の電動機のトルク特性が異なることを特徴とする請求項１から請求項４のいずれか記載の車両用台車もしくは、前記二つの直結電動機のうち一方の直結電動機ともう一方の直結電動機のトルク特性が異なることを特徴とする請求項５に記載の車両用台車。 According to the invention of claim 6, the vehicle according to any of claims 1 to 4, the torque characteristics of the motor and the other electric motor one of the previous SL two motors are different from each other 6. The vehicle carriage according to claim 5, wherein torque characteristics of one direct-coupled motor and the other direct-coupled motor of the two direct-coupled motors are different from each other .

請求項７の発明によれば、前記二つの電動機もしくは前記二つの直結電動機のうち一方の電動機もしくは直結電動機ともう一方の電動機もしくは直結電動機の電動機の電流を流さない際に発生するトルクが異なることを特徴とする請求項６記載の車両用台車。 According to the invention of claim 7, torque is different that occurs when prior Symbol no current of two motors or one motor of the two direct motors or direct electric motor and the other motor or direct electric motor electric motor The vehicle carriage according to claim 6 .

すなわち、走行車輪を有する二つの車軸を有し、前記二つの車軸が各々個別の電動機及び個別の駆動歯車装置によって駆動される車両用台車において、前記二つ電動機の間に中間軸及び中間歯車を設け、前記二つの電動機は同一の電力変換装置で制御され前記中間軸を及び前記中間歯車を介して機械的に結合することを特徴とする車両用台車により上記課題を解決する。   That is, in a vehicle carriage having two axles having traveling wheels, each of which is driven by an individual electric motor and an individual drive gear device, an intermediate shaft and an intermediate gear are provided between the two electric motors. The vehicle is characterized in that the two electric motors are controlled by the same power conversion device and mechanically couple the intermediate shaft and the intermediate gear through the intermediate gear.

本発明により、小型化高効率化に有利な電動機を用いて一台の電力変換装置で制御可能となるため、小型で低コストの車両用台車が構築できる。   According to the present invention, since it is possible to control with a single power conversion device using an electric motor advantageous for downsizing and high efficiency, a small and low-cost vehicle carriage can be constructed.

図１は請求項１の発明の一実施例である。図１に従い請求項１の車両用台車について説明するが、従来例と同一部分は省略する   FIG. 1 shows an embodiment of the invention of claim 1. The vehicle carriage of claim 1 will be described with reference to FIG.

中間軸１０は車軸と平行に設置される。中間軸１０には中間歯車１１が結合される。中間歯車１１は、第一電動機歯車８及び第二電動機歯車９と歯車がかみあった状態となる。   The intermediate shaft 10 is installed in parallel with the axle. An intermediate gear 11 is coupled to the intermediate shaft 10. The intermediate gear 11 is in a state in which the first motor gear 8 and the second motor gear 9 are engaged with the gear.

上記構成により、第一電動機６と第二電動機７の回転速度と回転角が一致するため、第一電動機６と第二電動機７に同期電動機を用いても図９のように一台の電力変換装置で第一電動機６と第二電動機７の両方の制御が可能となる。   With the above configuration, since the rotation speed and rotation angle of the first motor 6 and the second motor 7 coincide with each other, even if a synchronous motor is used for the first motor 6 and the second motor 7, one power conversion as shown in FIG. The apparatus can control both the first electric motor 6 and the second electric motor 7.

図２は請求項２の発明の一実施例である。図２に従い請求項２の車両用台車について説明するが、実施例１と同一部分は省略する   FIG. 2 shows an embodiment of the second aspect of the present invention. The vehicle carriage according to claim 2 will be described with reference to FIG. 2, but the same parts as those in the first embodiment will be omitted.

第一電動機６と第二電動機７の出力軸は反対方向とする。   The output shafts of the first motor 6 and the second motor 7 are in opposite directions.

中間軸１０の一端に第一中間歯車１２、もう一端に第二中間歯車１３が結合される。第一中間歯車１２は第一電動機歯車８とかみ合った状態、第二中間歯車１３は第二電動機歯車９と歯車がかみあった状態とする。   A first intermediate gear 12 is coupled to one end of the intermediate shaft 10 and a second intermediate gear 13 is coupled to the other end. The first intermediate gear 12 is engaged with the first electric motor gear 8 and the second intermediate gear 13 is engaged with the second electric motor gear 9.

上記構成により、実施例１と同様に第一電動機と第二電動機の回転速度及び回転角度を一致させることが可能であるため、第一電動機６と第二電動機７に同期電動機を用いても図９のように一台の電力変換装置で第一電動機６と第二電動機７の両方の制御が可能となり、なおかつ台車が前後左右ともに重量配分が対称となり、安定した特性の車両用台車を実現できる。   With the above configuration, since the rotation speed and rotation angle of the first motor and the second motor can be matched in the same manner as in the first embodiment, a synchronous motor can be used for the first motor 6 and the second motor 7 as well. As shown in FIG. 9, it is possible to control both the first electric motor 6 and the second electric motor 7 with a single power conversion device, and the bogies have a symmetrical weight distribution in the front, rear, left, and right, and a vehicle bogie with stable characteristics can be realized. .

図３は請求項３の発明の一実施例である。図３に従い請求項３の車両用台車について説明するが、実施例２と同一部分は省略する   FIG. 3 shows an embodiment of the invention of claim 3. The vehicle carriage according to claim 3 will be described with reference to FIG. 3, but the same parts as those in the second embodiment will be omitted.

中間軸は車軸に対し斜めに設置する。   The intermediate shaft is installed at an angle to the axle.

上記構成により、台車構造上台車中央部に車軸に平行な中間軸の設置が困難な台車においても、実施例２と同様な効果が得られる。   With the above configuration, the same effect as that of the second embodiment can be obtained even in a cart in which it is difficult to install an intermediate shaft parallel to the axle at the center of the cart in the cart structure.

図４及び図５は請求項４の発明の一実施例である。以下に図４及び図５に従い請求項４の車両用台車について説明するが、実施例１もしくは実施例２と同一部分は省略する   4 and 5 show an embodiment of the fourth aspect of the present invention. The vehicle carriage according to claim 4 will be described below with reference to FIGS. 4 and 5, but the same parts as those in Example 1 or Example 2 are omitted.

第一電動機６と第一電動機歯車８の間に、第一継手１４と第一電動機中間歯車１６をはさみ、第二電動機７と第二電動機歯車９の間に第二継手１５と第二電動機中間歯車１７を挟む。図４の例では中間歯車１１と第一電動機中間歯車１６及び第二電動機中間歯車１７の歯車がかみあわされている。図５の例では第一中間歯車１２と第一電動機中間歯車１６の歯車がかみあわされ第二中間歯車１３と第二電動機中間歯車１５の歯車がかみあわされている。   The first joint 14 and the first motor intermediate gear 16 are sandwiched between the first motor 6 and the first motor gear 8, and the second joint 15 and the second motor intermediate are interposed between the second motor 7 and the second motor gear 9. The gear 17 is sandwiched. In the example of FIG. 4, the gears of the intermediate gear 11, the first electric motor intermediate gear 16, and the second electric motor intermediate gear 17 are engaged. In the example of FIG. 5, the first intermediate gear 12 and the first electric motor intermediate gear 16 are engaged with each other, and the second intermediate gear 13 and the second electric motor intermediate gear 15 are engaged with each other.

実施例３と同様に中間軸１０が車軸１及び車軸２に対して平行でなくてもよい。   Similar to the third embodiment, the intermediate shaft 10 may not be parallel to the axle 1 and the axle 2.

図４及び図５では省略しているが第一電動機６と第一電動機中間歯車１６と第二電動機７と第二電動機中間歯車１７と中間軸１０と中間歯車１１もしくは第一中間歯車１２及び第二中間歯車１３の荷重は台車枠に直接かかるようにする。   Although omitted in FIGS. 4 and 5, the first motor 6, the first motor intermediate gear 16, the second motor 7, the second motor intermediate gear 17, the intermediate shaft 10, the intermediate gear 11 or the first intermediate gear 12 and the first motor 12. The load of the second intermediate gear 13 is applied directly to the carriage frame.

第一継手１４と第二継手１５は回転伝達を行うが相対変位を許容するものとする。   The first joint 14 and the second joint 15 transmit rotation but allow relative displacement.

上記構成により、第一電動機６と第一電動機中間歯車１６と第二電動機７と第二電動機中間歯車１７と中間軸１０と中間歯車１１もしくは第一中間歯車１２及び第二中間歯車１３の荷重が車軸に直接かかることがないため、振動により軌道の悪化や乗り心地の悪化を防ぎ、なおかつ第一電動機６と第二電動機７の回転速度及び回転角度が一致可能であるため、第一電動機６と第二電動機７に同期電動機を用いても図９のように一台の電力変換装置で第一電動機６と第二電動機７の両方の制御が可能となる。   With the above configuration, the load of the first motor 6, the first motor intermediate gear 16, the second motor 7, the second motor intermediate gear 17, the intermediate shaft 10, the intermediate gear 11, or the first intermediate gear 12 and the second intermediate gear 13 is increased. Since it is not directly applied to the axle, the deterioration of the track and the ride comfort are prevented by vibration, and the rotation speed and rotation angle of the first motor 6 and the second motor 7 can be matched. Even if a synchronous motor is used for the second electric motor 7, both the first electric motor 6 and the second electric motor 7 can be controlled by a single power converter as shown in FIG.

図６は請求項５の発明の一実施例である。以下に請求項５の車両用台車について説明するが、実施例１と同一部分は省略する   FIG. 6 shows an embodiment of the invention of claim 5. The vehicle carriage of claim 5 will be described below, but the same parts as those in the first embodiment will be omitted.

第一直結電動機１８は第一車軸１に第二直結電動機１９は第二車軸２に直接結合される。   The first direct motor 18 is directly coupled to the first axle 1 and the second direct motor 19 is directly coupled to the second axle 2.

中間歯車１１は第一車軸歯車４および第二車軸歯車５と歯車がかみあった状態とする。実施例２のように第一中間歯車１２と第二中間歯車１３を具備し、実施例３のように中間軸１０を斜めにしても良い。   The intermediate gear 11 is in a state in which the first axle gear 4 and the second axle gear 5 are engaged with the gear. The first intermediate gear 12 and the second intermediate gear 13 may be provided as in the second embodiment, and the intermediate shaft 10 may be inclined as in the third embodiment.

上記構成より、直接駆動の台車においても、第一直結電動機１８と第二直結電動機１９の回転速度及び回転角度を一致可能であり、同期電動機を用いても一台の電力変換装置で制御可能である。   With the above configuration, even in a direct drive cart, the rotation speed and rotation angle of the first direct-coupled motor 18 and the second direct-coupled motor 19 can be matched, and even with a synchronous motor, control is possible with a single power conversion device. is there.

以下に請求項６の一実施例車両用台車について説明するが、実施例１から実施例５と同一部分は省略する   In the following, a vehicle carriage according to one embodiment of the present invention will be described, but the same parts as those in the first to fifth embodiments will be omitted.

第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９のトルク特性が異なるようにする。   The torque characteristics of the first motor 6 and the second motor 7 or the first direct motor 18 and the second direct motor 19 are made different.

第一電動機６と第二電動機７の間もしくは第一直結電動機１８と第二直結電動機１９の間の回転を同一にするための各歯車のかみ合いにバックラッシが存在する場合、歯車装置にかかるトルクの方向が変化すると騒音や振動の原因となる。   When there is a backlash in the meshing of each gear for making the rotation between the first motor 6 and the second motor 7 or between the first direct-coupled motor 18 and the second direct-coupled motor 19 identical, the torque applied to the gear device Changes in direction can cause noise and vibration.

第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９は同一回転数で同一電力変換装置により駆動されるため、ほぼ同一のトルクが発生するため、中間軸１０を介して働くトルクは微小である。そのため、僅かなトルク変化や振動によって、トルクの方向が変化しバックラッシの影響により騒音や振動が発生する。   Since the first motor 6 and the second motor 7 or the first direct-coupled motor 18 and the second direct-coupled motor 19 are driven by the same power converter at the same rotation speed, almost the same torque is generated. The working torque is very small. Therefore, the torque direction changes due to a slight torque change or vibration, and noise or vibration occurs due to the effect of backlash.

第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９のトルク特性が異なるようにすることにより、力行もしくは回生を継続している間は歯車装置に常に同一方向のトルクが発生するため、バックラッシがあっても騒音や振動の原因とはならない。   By making the torque characteristics of the first motor 6 and the second motor 7 or the first direct-coupled motor 18 and the second direct-coupled motor 19 different, torque in the same direction is always applied to the gear unit while power running or regeneration is continued. Therefore, even if there is backlash, it will not cause noise or vibration.

以下に請求項７の車両用台車について説明するが、実施例６と同一部分は省略する   The vehicle carriage of claim 7 will be described below, but the same parts as those of the sixth embodiment will be omitted.

第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９に電流を流さない場合、第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９は殆どトルクを発生しないが、損失により僅かにトルクを発生する。本実施例では、このトルクの特性が第一電動機６と第二電動機７もしくは第一直結電動機１８と第二直結電動機１９において異なるようにする。   When no current is passed through the first motor 6 and the second motor 7 or the first directly connected motor 18 and the second directly connected motor 19, the first motor 6 and the second motor 7 or the first directly connected motor 18 and the second directly connected motor 19 are Almost no torque is generated, but a slight torque is generated due to loss. In this embodiment, the torque characteristics are made different between the first motor 6 and the second motor 7 or between the first direct-coupled motor 18 and the second direct-coupled motor 19.

以上より、電動機に電流を流さない、すなわち力行も回生も行わない場合においても、同一方向のトルクが発生するため、バックラッシがあっても騒音や振動の原因とはならない。   As described above, even when no current is supplied to the electric motor, that is, when neither power running nor regeneration is performed, torque in the same direction is generated, so even if there is backlash, it does not cause noise or vibration.

請求項１の一実施例を表した構成図である。It is a block diagram showing one Example of Claim 1. 請求項２の一実施例を表した構成図である。It is a block diagram showing one Example of Claim 2. 請求項３の一実施例を表した構成図である。It is a block diagram showing one Example of Claim 3. 請求項４の一実施例を表した構成図である。It is a block diagram showing one Example of Claim 4. 請求項４の他の実施例を表した構成図である。It is a block diagram showing the other Example of Claim 4. 請求項５の一実施例を表した構成図である。FIG. 6 is a configuration diagram illustrating an embodiment of claim 5. 従来の技術による車両用台車の構成図である。It is a block diagram of the vehicle trolley | bogie by a prior art. 二台の電動機を異なる電力変換装置で駆動する例である。This is an example in which two electric motors are driven by different power conversion devices. 二台の電動機を一台の電力変換装置で駆動する例である。This is an example in which two electric motors are driven by one power converter.

符号の説明Explanation of symbols

１ 第一車軸
２ 第二車軸
３ 台車
４ 第一車軸歯車
５ 第二車軸歯車
６ 第一電動機
７ 第二電動機
８ 第一電動機歯車
９ 第二電動機歯車
１０ 中間軸
１１ 中間歯車
１２ 第一中間歯車
１３ 第二中間歯車
１４ 第一継手
１５ 第二継手
１６ 第一電動機中間歯車
１７ 第二電動機中間歯車
１８ 第一直結電動機
１９ 第二直結電動機
２０ 第一電力変換装置
２１ 第二電力変換装置 DESCRIPTION OF SYMBOLS 1 1st axle 2 2nd axle 3 Bogie 4 1st axle gear 5 2nd axle gear 6 1st motor 7 2nd motor 8 1st motor gear 9 2nd motor gear 10 Intermediate shaft 11 Intermediate gear 12 First intermediate gear 13 Second intermediate gear 14 First joint 15 Second joint 16 First motor intermediate gear 17 Second motor intermediate gear 18 First direct motor 19 Second direct motor 20 First power converter 21 Second power converter

Claims (7)

走行車輪を有する二つの車軸を有し、該二つの車軸が各々個別の電動機及び個別の駆動歯車装置によって駆動される車両用台車において、前記二つ電動機の間に中間軸及び中間歯車を設け、該二つの電動機は同一の電力変換装置で制御され該中間軸及び該中間歯車を介して機械的に結合されることを特徴とする車両用台車。   In a vehicle carriage having two axles having traveling wheels, each of which is driven by an individual electric motor and an individual drive gear device, an intermediate shaft and an intermediate gear are provided between the two electric motors, The two electric motors are controlled by the same power converter and mechanically coupled via the intermediate shaft and the intermediate gear. 前記二つの電動機の軸は進行方向に対し直交方向であり一方の電動機ともう一方の電動機が逆方向に回転出力軸を有することを特徴とする請求項１記載の車両用台車。 Before Symbol vehicle bogie according to claim 1, wherein the two axes of the electric motor is in a direction orthogonal to the traveling direction of one of the electric motor and the other electric motor having a rotating output shaft in the reverse direction. 前記中間軸が車軸に対して斜めに設置されたことを特徴とする請求項２記載の車両用台車。 The vehicle truck of claim 2, wherein the pre-Symbol intermediate shaft is characterized in that it is installed obliquely to the axle. 前記電動機と前記駆動歯車装置の間に各々継手と電動機中間歯車を有し、前記電動機中間歯車と前記中間歯車がかみあわされており、前記二つの電動機、前記二つの電動機中間歯車、前記中間軸及び前記中間歯車が台車に装荷されることを特徴とする請求項１から請求項３のいずれか記載の車両用台車。 Each have a joint and a motor intermediate gear between the driving gear and the electric motor, the are a motor intermediate gear said intermediate gear is engaged, the two electric motors, the two motors intermediate gear, the intermediate shaft and The vehicle carriage according to any one of claims 1 to 3, wherein the intermediate gear is loaded on the carriage. 走行車輪を有する二つの車軸を有し、該二つの車軸に各々直結された二つの直結電動機によって駆動される車両用台車において、前記二つの車軸の間に中間軸及び中間歯車を設け、該二つの直結電動機は同一の電力変換装置で制御され、前記二つの車軸は該中間軸と該中間歯車を介して機械的に結合されることを特徴とする車両用台車。 Has two axles with running wheels, the vehicle bogie driven by each directly connected the two direct motors the intermediate shaft and the intermediate gear between the two axles provided on the two axles, the two- Two direct-coupled motors are controlled by the same power converter, and the two axles are mechanically coupled to the intermediate shaft via the intermediate gear. 前記二つの電動機のうち一方の電動機ともう一方の電動機のトルク特性が異なることを特徴とする請求項１から請求項４のいずれか記載の車両用台車もしくは、前記二つの直結電動機のうち一方の直結電動機ともう一方の直結電動機のトルク特性が異なることを特徴とする請求項５に記載の車両用台車。 The two electric motors one motor and the other motor vehicle bogie according to any one of claims 1 to 4, the torque characteristics are different from each other in or out of, the two direct motors 6. The vehicle carriage according to claim 5, wherein torque characteristics of one direct-coupled motor and the other direct-coupled motor are different . 前記二つの電動機もしくは前記二つの直結電動機のうち一方の電動機もしくは直結電動機ともう一方の電動機もしくは直結電動機の電動機の電流を流さない際に発生するトルクが異なることを特徴とする請求項６記載の車両用台車。 7. The torque generated when no current flows between one of the two motors or the two direct-coupled motors and the other motor or the motor of the direct-coupled motor, according to claim 6. Vehicle trolley.
JP2007310305A 2007-11-30 2007-11-30 Vehicle cart Expired - Fee Related JP5030749B2 (en)

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