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1. 发明申请

US20110046852A1 POWER STEERING DEVICE 失效
标题翻译：动力转向装置
公开(公告)号：US20110046852A1
公开(公告)日：2011-02-24
申请号：US12935211
申请日：2009-03-11
申请人： Satoru Yamamoto , Takaaki Noda , Yasuto Yanagida
发明人： Satoru Yamamoto , Takaaki Noda , Yasuto Yanagida
IPC分类号： B62D6/00 , B62D5/12
CPC分类号： B62D5/083 , B62D5/065 , B62D5/0837
摘要： A power steering device includes an oil-hydraulic pump, an electric motor to drive the pump, an inverter, a control valve, a power cylinder to produce a steering assist, and a control unit to control the drive signal of the inverter. The control valve includes a pump port supplied with oil from the pump, a first and second cylinder ports connected to first and second cylinder chambers on sides of the piston, and a discharge port. Communication between the first cylinder port and the pump port and communication between the second cylinder port and the discharge port, and communication between the first cylinder port and the discharge port and communication between the second cylinder port and the pump port are established in steered status in the other direction. Communication among the pump port and first and second cylinder ports, and isolation of the discharge port from the pump port and first and second cylinder ports are established when the control valve is in neutral status.
摘要翻译：动力转向装置包括油压泵，用于驱动泵的电动马达，逆变器，控制阀，动力缸以产生转向辅助，以及用于控制逆变器的驱动信号的控制单元。控制阀包括从泵供给油的泵口，连接到活塞侧面的第一和第二气缸室的第一和第二气缸端口以及排出口。在第一气缸端口和泵口之间的通信以及第二气缸端口和排出口之间的连通以及第一气缸端口和排出口之间的连通以及第二气缸端口和泵口之间的连通在转向状态下建立另一个方向。当控制阀处于空档状态时，建立泵口和第一和第二气缸端口之间的通信，以及排出口与泵口和第一和第二气缸端口的隔离。

2. 发明授权

US07684217B2 Polyphase inverter, control method thereof, air sending device and polyphase current output system 有权
标题翻译：多相逆变器，其控制方法，送风装置和多相电流输出系统
公开(公告)号：US07684217B2
公开(公告)日：2010-03-23
申请号：US11988552
申请日：2006-05-16
申请人： Tetsuo Nakata , Yasuto Yanagida
发明人： Tetsuo Nakata , Yasuto Yanagida
IPC分类号： H02M5/45 , H02M5/458
CPC分类号： H02M1/32 , H02M7/5387
摘要： Capacitors act as bootstrap capacitors of a high side control circuits. The capacitors are charged in a period in which all of high arm switching devices are non-conductive, so-called in a precharge period. When any of U-phase current, V-phase current and W-phase current is smaller than a negative predetermined value (when an absolute value is larger), it is judged which is the largest value. The low arm switching device is turned on only for a phase corresponding to the current of the largest value and the low arm switching devices of other phases are turned off.
摘要翻译：电容器用作高端控制电路的自举电容器。电容器在所有高臂开关器件都不导电的时段内被充电，所谓的预充电期间。当U相电流，V相电流和W相电流中的任何一个小于负的预定值（当绝对值较大时），判断哪个是最大值。低臂开关装置仅在对应于最大值的电流的相位时导通，并且其它相的低臂开关装置关闭。

3. 发明申请

US20070070560A1 Method for estimating dc motor coil temperature, dc motor control method and their devices 有权
标题翻译：直流电机线圈温度估算方法，直流电动机控制方法及其装置
公开(公告)号：US20070070560A1
公开(公告)日：2007-03-29
申请号：US10576769
申请日：2004-10-22
申请人： Takeshi Hikawa , Satoshi Ishikawa , Yasuto Yanagida
发明人： Takeshi Hikawa , Satoshi Ishikawa , Yasuto Yanagida
IPC分类号： H02H7/08
CPC分类号： H02P6/182 , G01K7/00 , H02P23/14 , H02P29/64
摘要： Resistance of the coil of a DC motor is calculated by using the motor current and the motor voltage, and the coil temperature is estimated by using the resistance-temperature characteristics of the coil.
摘要翻译：通过使用电动机电流和电动机电压来计算直流电动机的线圈的电阻，并且通过使用线圈的电阻温度特性来估计线圈温度。

4. 发明申请

US20060150621A1 Method and device for controlling temperature rise of autonomous inverter-driven hydraulic unit 失效
标题翻译：控制自主变频驱动液压单元升温的方法和装置
公开(公告)号：US20060150621A1
公开(公告)日：2006-07-13
申请号：US10534698
申请日：2003-11-17
申请人： Tetsuo Nakata , Yasuto Yanagida , Yoshiyuki Ochi
发明人： Tetsuo Nakata , Yasuto Yanagida , Yoshiyuki Ochi
IPC分类号： F16D31/00
CPC分类号： G01K3/10 , F15B21/042 , F15B2211/20515 , F15B2211/20538 , F15B2211/62 , F15B2211/6651 , F15B2211/851 , H02P29/62
摘要： An apparatus for warm up control of an autonomous inverter-driven hydraulic unit has a warm up control section and a switch section. The warm up control section performs a predetermined process using a current speed and current pressure as input information and outputs a first switch command. The switch section is controlled by the first switch command so as to control on/off of power supplied to a fan motor. The apparatus causes an oil temperature to quickly rise to a level where a hydraulic unit driven by a hydraulic pump can work in an optimum condition.
摘要翻译：自动逆变驱动液压单元的预热控制装置具有预热控制部和开关部。预热控制部使用当前速度和当前压力作为输入信息执行预定处理，并输出第一切换命令。开关部由第一开关指令控制，以控制供给风扇马达的电力的开/关。该装置使得油温快速上升至由液压泵驱动的液压单元能够在最佳状态下工作的水平。

5. 发明授权

US07588422B2 Pump driving method and device therefor 有权
标题翻译：泵驱动方法及其装置
公开(公告)号：US07588422B2
公开(公告)日：2009-09-15
申请号：US10534690
申请日：2003-11-17
申请人： Yoshiyuki Ochi , Tetsuo Nakata , Yasuto Yanagida
发明人： Yoshiyuki Ochi , Tetsuo Nakata , Yasuto Yanagida
IPC分类号： F04B49/06
CPC分类号： F04D15/0066 , F04B49/065
摘要： A pump driving apparatus has a characteristic changing section which receives a set pressure, a set flowing amount, a set horse power, and a DC voltage of the converter section as input, outputs modified values of pressure, flowing amount, and horse power, and supplies the modified values to the horse power command generation section. Therefore, the motor can be driven to suit the change in power voltage so that the motor capacity can be utilized sufficiently.
摘要翻译：泵驱动装置具有接收设定压力，设定流量，设定马功率和转换器部分的直流电压作为输入的特性变化部，输出压力，流量和马力的修正值，将修改后的值提供给马力指令生成部。因此，可以驱动电动机以适应电力电压的变化，从而可以充分利用电动机容量。

6. 发明申请

US20060153689A1 Pump driving method and device therefor 有权
公开(公告)号：US20060153689A1
公开(公告)日：2006-07-13
申请号：US10534690
申请日：2003-11-17
申请人： Yoshiyuki Ochi , Tetsuo Nakata , Yasuto Yanagida
发明人： Yoshiyuki Ochi , Tetsuo Nakata , Yasuto Yanagida
IPC分类号： F04B49/06
CPC分类号： F04D15/0066 , F04B49/065
摘要： A pump driving apparatus has a characteristic changing section which receives a set pressure, a set flowing amount, a set horse power, and a DC voltage of the converter section as input, outputs modified values of pressure, flowing amount, and horse power, and supplies the modified values to the horse power command generation section. Therefore, the motor can be driven to suit the change in power voltage so that the motor capacity can be utilized sufficiently.

7. 发明授权

US08392067B2 Power steering device 失效
标题翻译：动力转向装置
公开(公告)号：US08392067B2
公开(公告)日：2013-03-05
申请号：US12935211
申请日：2009-03-11
申请人： Satoru Yamamoto , Takaaki Noda , Yasuto Yanagida
发明人： Satoru Yamamoto , Takaaki Noda , Yasuto Yanagida
IPC分类号： A01B69/00
CPC分类号： B62D5/083 , B62D5/065 , B62D5/0837
摘要： A power steering device includes an oil-hydraulic pump, an electric motor to drive the pump, an inverter, a control valve, a power cylinder to produce a steering assist, and a control unit to control the drive signal of the inverter. The control valve includes a pump port supplied with oil from the pump, a first and second cylinder ports connected to first and second cylinder chambers on sides of the piston, and a discharge port. Communication between the first cylinder port and the pump port and communication between the second cylinder port and the discharge port, and communication between the first cylinder port and the discharge port and communication between the second cylinder port and the pump port are established in steered status in the other direction. Communication among the pump port and first and second cylinder ports, and isolation of the discharge port from the pump port and first and second cylinder ports are established when the control valve is in neutral status.
摘要翻译：动力转向装置包括油压泵，用于驱动泵的电动马达，逆变器，控制阀，动力缸以产生转向辅助，以及用于控制逆变器的驱动信号的控制单元。控制阀包括从泵供给油的泵口，连接到活塞侧面的第一和第二气缸室的第一和第二气缸端口以及排出口。在第一气缸端口和泵口之间的通信以及第二气缸端口和排出口之间的连通以及第一气缸端口和排出口之间的连通以及第二气缸端口和泵口之间的连通在转向状态下建立另一个方向。当控制阀处于空档状态时，建立泵口和第一和第二气缸端口之间的通信，以及排出口与泵口和第一和第二气缸端口的隔离。

8. 发明申请

US20090027935A1 Polyphase Inverter, Control Method Thereof, Air Sending Device and Polyphase Current Output System 有权
标题翻译：多相逆变器及其控制方法，空气发送装置和多相电流输出系统
公开(公告)号：US20090027935A1
公开(公告)日：2009-01-29
申请号：US11988552
申请日：2006-05-16
申请人： Tetsuo Nakata , Yasuto Yanagida
发明人： Tetsuo Nakata , Yasuto Yanagida
IPC分类号： H02P23/00 , H02M7/5387
CPC分类号： H02M1/32 , H02M7/5387
摘要： Capacitors act as bootstrap capacitors of a high side control circuits. The capacitors are charged in a period in which all of high arm switching devices are non-conductive, so-called in a precharge period. When any of U-phase current, V-phase current and W-phase current is smaller than a negative predetermined value (when an absolute value is larger), it is judged which is the largest value. The low arm switching device is turned on only for a phase corresponding to the current of the largest value and the low arm switching devices of other phases are turned off.
摘要翻译：电容器用作高端控制电路的自举电容器。电容器在所有高臂开关器件都不导电的时段内被充电，所谓的预充电期间。当U相电流，V相电流和W相电流中的任何一个小于负的预定值（当绝对值较大时），判断哪个是最大值。低臂开关装置仅在对应于最大值的电流的相位时导通，并且其它相的低臂开关装置关闭。

9. 发明授权

US07265954B2 Method for estimating DC motor coil temperature, DC motor control method and their devices 有权
标题翻译：直流电机线圈温度估算方法，直流电动机控制方法及其装置
公开(公告)号：US07265954B2
公开(公告)日：2007-09-04
申请号：US10576769
申请日：2004-10-22
申请人： Takeshi Hikawa , Satoshi Ishikawa , Yasuto Yanagida
发明人： Takeshi Hikawa , Satoshi Ishikawa , Yasuto Yanagida
IPC分类号： H02H5/04 , H02H7/08
CPC分类号： H02P6/182 , G01K7/00 , H02P23/14 , H02P29/64
摘要： Resistance of the coil of a DC motor is calculated by using the motor current and the motor voltage, and the coil temperature is estimated by using the resistance-temperature characteristics of the coil.
摘要翻译：通过使用电动机电流和电动机电压来计算直流电动机的线圈的电阻，并且通过使用线圈的电阻温度特性来估计线圈温度。

10. 发明授权

US07207173B2 Method and apparatus for warm up control of autonomous inverter-driven hydraulic unit 失效
标题翻译：自动变频驱动液压机组预热方法及装置
公开(公告)号：US07207173B2
公开(公告)日：2007-04-24
申请号：US10534698
申请日：2003-11-17
申请人： Tetsuo Nakata , Yasuto Yanagida , Yoshiyuki Ochi
发明人： Tetsuo Nakata , Yasuto Yanagida , Yoshiyuki Ochi
IPC分类号： H02P6/00 , F15B21/04 , E02F9/22 , H02P7/00
CPC分类号： G01K3/10 , F15B21/042 , F15B2211/20515 , F15B2211/20538 , F15B2211/62 , F15B2211/6651 , F15B2211/851 , H02P29/62
摘要： An apparatus for warm up control of an autonomous inverter-driven hydraulic unit has a warm up control section and a switch section. The warm up control section performs a predetermined process using a current speed and current pressure as input information and outputs a first switch command. The switch section is controlled by the first switch command so as to control on/off of power supplied to a fan motor. The apparatus causes an oil temperature to quickly rise to a level where a hydraulic unit driven by a hydraulic pump can work in an optimum condition.
摘要翻译：自动逆变驱动液压单元的预热控制装置具有预热控制部和开关部。预热控制部使用当前速度和当前压力作为输入信息执行预定处理，并输出第一切换命令。开关部由第一开关指令控制，以控制供给风扇马达的电力的开/关。该装置使油温快速上升到由液压泵驱动的液压单元能够在最佳状态下工作的水平。

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