专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2755314A4 SWITCH DRIVING CIRCUIT, INVERTER APPARATUS AND POWER STEERING APPARATUS 有权转让
标题翻译：开关驱动电路，逆变器和动力转向装置
公开(公告)号：EP2755314A4
公开(公告)日：2016-06-01
申请号：EP12830399
申请日：2012-08-10
申请人： TOSHIBA KK , NSK LTD
发明人： MAEKAWA SARI , FUKINUKI SHIGERU , KUMAGAI SHIN
IPC分类号： H02M7/48 , H02J7/00 , H02P27/06 , H02P29/024
CPC分类号： H01L29/00 , H02J7/0034 , H02M7/48 , H02M7/53871 , H02P27/06 , H02P29/027 , Y10T307/76
摘要： A switch driving circuit electrically opens and closes a switch circuit (5) including two N-channel type semiconductor switching elements (6a, 6b) series connected in opposite directions, thereby electrically opening and closing an electrical path between a DC power supply (4) and an inverter circuit (1). The switch driving circuit (38) has a reference potential point in common with the inverter circuit (1) and supplies an opening/closing control signal to the switch circuit (5). The switch driving circuit (38) includes a half bridge circuit including two semiconductor switching elements (10, 11) series connected between a driving power supply and the reference potential point. Two protection diodes (13, 14) are connected in parallel to the semiconductor switching elements (10, 11) respectively. At least one current blocking diode (39, 42, 43) is configured to block current from flowing from the reference potential point through the diode (39, 42, 43) to the switch circuit (5) side when the DC power supply (4) is connected to the inverter circuit (1) in reverse polarity.

2. 发明公开

EP2827489A4 INVERTER DEVICE AND POWER STEERING DEVICE 有权转让
标题翻译： WECHSELRICHTERVORRICHTUNG UND SERVOLENKVORRICHTUNG
公开(公告)号：EP2827489A4
公开(公告)日：2016-03-02
申请号：EP13761165
申请日：2013-03-12
申请人： TOSHIBA KK , NSK LTD
发明人： MAEKAWA SARI , KUMAGAI SHIN , FUKINUKI SHIGERU , AWAZU MINORU
IPC分类号： H02M7/48 , B62D5/04 , H02H3/08 , H02H7/122 , H02M1/32 , H02M7/5387 , H02P6/12 , H02P6/24
CPC分类号： H02P6/12 , B62D5/0463 , B62D5/0487 , H02H3/08 , H02H7/122 , H02M1/32 , H02M7/5387 , H02P6/24
摘要： An inverter device includes a switch circuit (5) configured by series-connecting two N-channel semiconductor switching elements (6a, 6b) in opposite directions so that the switch circuit (5) makes or breaks electrical connection between a DC power supply (4) and an inverter circuit (1) and a control circuit (35) carrying out a protecting operation in which when the control circuit (35) output a control signal to control switching of the inverter circuit (1) and an operating condition is met, 1 the control circuit (35) stops output of the control signal to turn off all switching elements (6a, 6b) configuring the inverter circuit (1) and the switch circuit (5). In the protecting operation, the switch circuit (5) is turned off after output of the control signal has been stopped.
摘要翻译：逆变器装置包括通过将两个N沟道半导体开关元件（6a，6b）以相反方向串联连接而构成的开关电路（5），使得开关电路（5）使DC电源（4））以及执行保护动作的逆变器电路（1）和控制电路（35），其中当控制电路（35）输出控制信号以控制逆变器电路（1）的切换和操作条件时，如图1所示，控制电路（35）停止控制信号的输出，使构成逆变器电路（1）和开关电路（5）的所有开关元件（6a，6b）截止。在保护动作中，控制信号的输出停止后，开关电路（5）被断开。

3. 发明公开

EP3190698A4 MOTOR CONTROL DEVICE, ELECTRIC POWER STEERING DEVICE PROVIDED WITH SAME, AND VEHICLE 有权
公开(公告)号：EP3190698A4
公开(公告)日：2018-05-30
申请号：EP15838756
申请日：2015-09-02
申请人： NSK LTD
发明人： URYU KYOSHO , FUKINUKI SHIGERU
IPC分类号： H02P27/06 , B60R16/04 , B62D5/04 , B62D6/00 , B62D101/00 , B62D113/00 , B62D119/00
CPC分类号： B62D5/0463 , B62D5/0457 , B62D5/0475 , B62D5/0481 , B62D6/08 , H02P6/12 , H02P6/28 , H02P27/06
摘要： [Problem] An object of the present invention is to provide a highly reliable motor control unit which can securely prevent the power supply reset of a control section even when the power supply (battery) voltage decreases. [Means for solving the problem] The present invention is the motor control unit which drives a motor through an inverter based on a calculated command value of a control section to which a power supply voltage is supplied, comprising: a charging/discharging mechanism for charging and discharging electric charges of an inverter voltage supplied to the inverter; and a separation means for separating the charging/discharging mechanism from the power supply voltage, wherein when a warning signal informing of a drop in the power supply voltage is inputted, the charging/discharging mechanism is separated from the power supply voltage by the separation means as well as a voltage is applied to the control section from the charging/discharging mechanism to avoid power supply reset of the control section. The motor may be a motor with multi-system windings.

4. 发明公开

EP3157163A4 MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE EQUIPPED WITH SAME 有权
标题翻译：摩托车司机
公开(公告)号：EP3157163A4
公开(公告)日：2017-08-23
申请号：EP15806040
申请日：2015-05-08
申请人： NSK LTD
发明人： SHINKAWA NAOTO , FUKINUKI SHIGERU , KUMAGAI SHIN , SHIMAKAWA SHIGERU , KOGURE TERUYOSHI
IPC分类号： H02P27/06 , B62D5/04 , B62D6/00 , B62D137/00
CPC分类号： B62D5/0484 , B62D5/046 , H02P27/06
摘要： [Problem] An object of the present invention is to provide a motor control apparatus that, with a high reliability, protects the motor release-switch comprising the semiconductor switching elements in small size and an electric power steering apparatus provided the same. [Means for solving the problem] An electric power steering apparatus that drive-controls a motor by an inverter, and a motor release-switch is connected between the inverter and the motor, comprising: a control section to detect an assist state on a driving control system and to ON/OFF-switch a control of the inverter based on a detection result; a motor rotational number detecting section to detect a rotational number of the motor; an energy calculating section to calculate an energy of a motor back-EMF and a regenerative current based on the rotational number; and a judging section to compare the energy with an area of safety operation of the motor release-switch and to OFF-switch the d motor release-switch when the energy becomes within the area of safety operation. As occasion demands, the area of safety operation is calculated with the temperature.
摘要翻译：发明内容本发明的目的在于提供一种电动机控制装置，该电动机控制装置以高可靠性来保护由小型的半导体开关元件构成的电动机释放开关以及设置该电动机的电动助力转向装置。用于解决课题的手段在逆变器与电动机之间连接有通过逆变器对电动机进行驱动控制的电动式动力转向装置和电动机释放开关，其特征在于，包括：控制部，检测驾驶时的辅助状态基于检测结果对逆变器的控制进行导通/截止切换; 电机转数检测部分，用于检测电机的转数; 能量计算部分，用于基于所述转数计算电动机反电动势和再生电流的能量; 以及判断部分，用于将能量与电动机释放开关的安全操作区域进行比较，并且当能量处于安全操作区域内时断开d电动机释放开关的断开。根据情况的需要，安全操作区域是根据温度计算的。

5. 发明公开

EP2947974A4 PRINTED CIRCUIT SUBSTRATE AND NOISE SUPPRESSING STRUCTURE 有权
标题翻译：印刷电路布线基板和降噪结构
公开(公告)号：EP2947974A4
公开(公告)日：2016-09-21
申请号：EP14741098
申请日：2014-01-09
申请人： NSK LTD
发明人： SHINKAWA NAOTO , FUKINUKI SHIGERU
IPC分类号： H05K1/16 , B62D5/04 , H05K3/46
CPC分类号： H05K1/0231 , B62D5/0406 , H01L2224/4103 , H01L2924/00014 , H05K1/0233 , H05K1/0298 , H05K1/115 , H05K1/141 , H05K1/162 , H05K1/18 , H05K2201/042 , H05K2201/097 , H05K2201/1006 , H01L2224/37099

6. 发明公开

EP2784929A4 ELECTRIC POWER STEERING DEVICE 有权
标题翻译： ELEKTRISCHE SERVOLENKVORRICHTUNG
公开(公告)号：EP2784929A4
公开(公告)日：2016-06-22
申请号：EP12851491
申请日：2012-11-15
申请人： NSK LTD
发明人： KUMAGAI SHIN , FUKINUKI SHIGERU
IPC分类号： H02P23/00 , B62D5/04 , B62D6/00 , B62D101/00 , B62D119/00 , G01R31/34 , H02M1/00 , H02M7/5395
CPC分类号： G01R31/343 , B62D5/049 , H02M7/5395 , H02M2001/0009 , H02P23/00
摘要： An electric power steering apparatus includes a shunt resistor connected to an inverter, a controlling motor current detection circuit connected to two terminals of the shunt resistor in a positive direction, which detects phase currents of a motor and uses the detected phase current as a controlling motor current detection value of assist control, and a diagnostic motor current detection circuit that is connected to two terminals of the shunt resistor in an opposite direction and detects a failure of the controlling motor current detection circuit. Each phase current of the motor is detected by one-shunt type and the assist control is performed, and two systems of a circuit for amplifying a voltage between two terminals of the shunt resistor are provided.
摘要翻译：一种电动助力转向装置，包括连接到逆变器的分流电阻器，连接到分流电阻器的两端的正方向的控制电动机电流检测电路，其检测电动机的相电流并使用检测到的相电流作为控制电动机辅助控制的电流检测值，以及诊断电动机电流检测电路，其以相反方向连接到分流电阻器的两个端子，并检测控制电动机电流检测电路的故障。电动机的每相电流由单分流型检测，并进行辅助控制，并且提供用于放大分流电阻器的两个端子之间的电压的电路的两个系统。

7. 发明专利

JP2014162423A Electric power steering device 审中-公开
标题翻译：电动转向装置
公开(公告)号：JP2014162423A
公开(公告)日：2014-09-08
申请号：JP2013037100
申请日：2013-02-27
申请人： Nsk Ltd , 日本精工株式会社
发明人： YOSHII TAKANORI , EZURE HIROAKI , KOMINATO SHINICHI , KUMAGAI SHIN , FUKINUKI SHIGERU
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D113/00 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To provide an electric power steering device capable of promoting realization of smaller size and assurance of reliability.SOLUTION: On an electrification path from a power source (DC power source B) to a motor drive part 13, a power supply relay 17 for electrical conduction/shielding of the electrification path is provided. The power supply relay 17 is arranged in back to back arrangement in which two MOSFETs 17a, 17b are connected in series, to allow shielding of currents in both directions. A thermistor T1 is arranged near the MOSFET17b, for detecting temperature t1 near the MOSFET17b. Then, when the temperature t1 is equal to a preset reference temperature ta or higher, it is determined that heating abnormality is occurring at the MOSFET17b.
摘要翻译：要解决的问题：提供一种能够促进小尺寸的实现和可靠性的确保的电动助力转向装置。解决方案：在从电源（DC电源B）到电动机驱动部13的通电路径上，提供了用于电气通路的导电/屏蔽的继电器17。电源继电器17布置成背对背布置，其中两个MOSFET 17a，17b串联连接，以允许屏蔽两个方向的电流。在MOSFET17b附近设置热敏电阻T1，用于检测MOSFET17b附近的温度t1。然后，当温度t1等于预设的参考温度ta或更高时，确定在MOSFET17b处发生加热异常。

8. 发明专利

JP2019022441A モータ制御装置及びそれを搭載した電動パワーステアリング装置审中-公开
公开(公告)号：JP2019022441A
公开(公告)日：2019-02-07
申请号：JP2018174889
申请日：2018-09-19
申请人： NSK LTD
发明人： SHINKAWA NAOTO , FUKINUKI SHIGERU , KUMAGAI SHIN , SHIMAKAWA SHIGERU , KOGURE TERUYOSHI
IPC分类号： H02P27/06 , B62D5/04 , B62D6/00 , H02P29/68
摘要：【課題】半導体スイッチング素子で構成されたモータ開放スイッチの保護を信頼性高く行うことのできるモータ制御装置及びそれを搭載した電動パワーステアリング装置を提供する。【解決手段】インバータの制御をOFFする制御部は、インバータの制御がOFFのときに、モータ逆起電圧及び回生電流のエネルギーを演算するエネルギー演算部と、エネルギーをFETの安全動作領域と比較し、エネルギーが安全動作領域の領域内となったときにモータ開放スイッチのFETをOFFする判定部と、を具備し、安全動作領域は、FETのドレイン電流、FETのドレイン−ソース電圧及びFETのオン幅との関係、及びFETの最大許容損失の温度特性に基づいて決まり、最大許容損失は、FETのケース温度から推定された温度に基づいて算出され、ケース温度が上昇するにしたがい、低下する。【選択図】図6

9. 发明专利

JP2013110864A Electric power steering device 有权
标题翻译：电动转向装置
公开(公告)号：JP2013110864A
公开(公告)日：2013-06-06
申请号：JP2011254232
申请日：2011-11-21
申请人： Nsk Ltd , 日本精工株式会社
发明人： KUMAGAI SHIN , FUKINUKI SHIGERU
IPC分类号： H02P23/00 , B62D5/04 , B62D6/00 , B62D101/00 , B62D119/00 , H02M1/00
CPC分类号： G01R31/343 , B62D5/049 , H02M7/5395 , H02M2001/0009 , H02P23/00
摘要： PROBLEM TO BE SOLVED: To provide an electric power steering device with improved safety that detects the current of each phase of a motor in a one shunt type current detection circuit and reliably diagnoses the failure (abnormality) of the current detection circuit with a simple configuration.SOLUTION: An electric power steering device includes: a shunt resistor connected with an inverter; a motor current detection circuit for control that is connected across the shunt resistor in a positive direction and detects the phase current of a motor, which is defined as the motor current detection value for control of assist control; and a motor current detection circuit for diagnosis that is connected across the shunt resistor in a reverse direction to detect the failure of the motor current detection circuit for control. The electric power steering device detects the current of each phase of the motor by one shunt to perform assist control and has two circuits for amplifying the voltage across the shunt resistor.
摘要翻译：要解决的问题：提供一种改进的安全性的电动助力转向装置，其检测一个并联型电流检测电路中的电动机的每相的电流，并且可靠地诊断电流检测电路的故障（异常）一个简单的配置。电动助力转向装置包括：与逆变器连接的分流电阻器; 用于控制的电动机电流检测电路，其以正方向跨越分流电阻器并且检测电动机的相电流，其被定义为用于辅助控制的控制的电动机电流检测值; 以及用于诊断的电动机电流检测电路，其在相反方向上跨越分流电阻器连接，以检测用于控制的电动机电流检测电路的故障。电动助力转向装置通过一个分流器来检测电动机每相的电流，以执行辅助控制，并且具有用于放大分流电阻器两端的电压的两个电路。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2013198202A Inverter device and power steering device 有权
标题翻译：逆变器装置和功率转向装置
公开(公告)号：JP2013198202A
公开(公告)日：2013-09-30
申请号：JP2012060307
申请日：2012-03-16
申请人： Toshiba Corp , 株式会社東芝 , Nsk Ltd , 日本精工株式会社
发明人： MAEKAWA SARI , KUMAGAI SHIN , FUKINUKI SHIGERU , AWAZU MINORU
IPC分类号： H02M7/48 , B62D5/04
CPC分类号： H02P6/12 , B62D5/0463 , B62D5/0487 , H02H3/08 , H02H7/122 , H02M1/32 , H02M7/5387 , H02P6/24
摘要： PROBLEM TO BE SOLVED: To provide an inverter device that allows safely turning off a switch circuit configured by MOSFETs even if a short-circuit current flows into an inverter circuit.SOLUTION: A switch circuit connected between a DC power supply and an inverter circuit is configured so that two N-channel semiconductor switching elements are connected in series in the reverse direction. A control circuit outputs a control signal for controlling the switching of the inverter circuit, stops the output of the control signal when an operating condition is met to cause all the switching elements constituting the inverter circuit to turn off, and performs a protective operation that turns off the switch circuit. In the protective operation, the control circuit turns off the switch circuit after stopping the output of the control signal to the inverter circuit.
摘要翻译：要解决的问题：提供即使短路电流流入逆变器电路，也可以安全地切断由MOSFET构成的开关电路的逆变器装置。解决方案：连接在直流电源与逆变器电路之间的开关电路是被配置为使得两个N沟道半导体开关元件沿相反方向串联连接。控制电路输出用于控制逆变器电路的切换的控制信号，当操作条件满足时停止控制信号的输出，使得构成逆变器电路的所有开关元件关闭，并进行转向的保护操作关闭开关电路。在保护动作中，控制电路在停止向逆变电路输出控制信号后，断开开关电路。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式