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公开(公告)号：US20070144820A1
公开(公告)日：2007-06-28
申请号：US11643806
申请日：2006-12-22
申请人： Masakazu Kurata , Toshimitsu Sakaki
发明人： Masakazu Kurata , Toshimitsu Sakaki
IPC分类号： B62D5/00
摘要： A power steering apparatus includes a power cylinder including first and second pressure chambers, a hydraulic pump including first and second discharge ports, the hydraulic pump being arranged to supply a hydraulic pressure selectively to the first and second pressure chambers; first and second hydraulic passages connecting the first and second pressure chambers and the first and second discharge ports; a motor arranged to drive the hydraulic pump; a motor control section configured to output a drive signal to the motor; a reservoir tank storing a hydraulic fluid; first and second bypass passages connecting the first and second hydraulic passages and the reservoir tank; first and second bypass valves arranged to open and close the first and second bypass passages; and first and second flow rate restricting sections disposed in the first and second bypass passages, and arranged to decrease flow rates of the first and second bypass passages.
摘要翻译： 一种动力转向装置，包括具有第一和第二压力室的动力缸，包括第一和第二排出口的液压泵，所述液压泵设置成选择性地向第一和第二压力室供应液压; 连接第一和第二压力室与第一和第二排出口的第一和第二液压通道; 布置成驱动液压泵的马达; 马达控制部，被配置为向马达输出驱动信号; 存储液压油的储存罐; 连接第一和第二液压通道和储存箱的第一和第二旁路通道; 布置成打开和关闭第一和第二旁通通道的第一和第二旁通阀; 以及设置在第一和第二旁路通路中的第一和第二流量限制部分，并且被布置成减小第一和第二旁通通路的流量。
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公开(公告)号：US20060254850A1
公开(公告)日：2006-11-16
申请号：US11430085
申请日：2006-05-09
IPC分类号： B62D5/06
摘要： A power steering system includes a hydraulic power cylinder having a first and a second hydraulic chambers, for assisting a steering force of a steering mechanism, a first and a second oil passages respectively connected to the first and second hydraulic chambers, a reversible pump discharging operating oil and providing oil pressure to the hydraulic power cylinder through the first and second oil passages, and a motor connected to the reversible pump and rotating the reversible pump in normal and reverse directions. A steering load detection unit detects a steering load of a steering wheel for steering of the steered road wheels, and a motor control unit outputs a control signal to the motor to bring an actual oil pressure generated by the reversible pump closer to a desired oil pressure determined based on the detected steering load. A discharge amount per rotation of the reversible pump is smaller than or equal to 5 cc.
摘要翻译： 动力转向系统包括具有第一和第二液压室的液压动力缸，用于辅助转向机构的转向力，分别连接到第一和第二液压室的第一和第二油路， 并通过第一和第二油路向液压动力缸提供油压，以及连接到可逆泵并且沿正向和反向旋转可逆泵的马达。 转向负载检测单元检测用于转向车轮的转向的方向盘的转向负载，电动机控制单元向电动机输出控制信号，以使由可逆泵产生的实际油压更接近期望的油压 基于检测到的转向负载确定。 可逆泵的每旋转的排出量小于或等于5cc。
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公开(公告)号：US07648003B2
公开(公告)日：2010-01-19
申请号：US11654676
申请日：2007-01-18
申请人： Ayumu Miyajima , Isamu Tsubono , Takaomi Nishigaito , Toru Takahashi , Mitsuo Sasaki , Toshimitsu Sakaki , Tatsuo Matsumura
发明人： Ayumu Miyajima , Isamu Tsubono , Takaomi Nishigaito , Toru Takahashi , Mitsuo Sasaki , Toshimitsu Sakaki , Tatsuo Matsumura
IPC分类号： B62D5/06
CPC分类号： B62D5/065
摘要： In a power steering system comprising a power cylinder for assisting a steering power of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure to the power cylinder, a first oil passage and a second oil passage connecting the power cylinder and the hydraulic pump respectively, a motor for driving the hydraulic pump, and power steering control means for calculating a command value to the motor based on the steering torque, a flow rate of the working oil supplied from a high-pressure side oil passage to a low-pressure side oil passage is restrained at the transition from the end of the steering state (lock end) of the steering mechanism to the returning. The flow-rate restraint increasingly corrects a driving current of the motor in the steering direction or limits the flow rate of the working oil.
摘要翻译： 在一种动力转向系统中，包括用于辅助转向机构的转向动力的动力缸，用于向动力缸提供液压的液压泵，分别连接动力缸和液压泵的第一油路和第二油路 用于驱动液压泵的电动机和用于根据转向转矩计算对电动机的指令值的动力转向控制装置，从高压侧油路供给到低压侧的工作油的流量 在从转向机构的转向状态（锁定结束）到返回的转变的过渡期间，油路被限制。 流量限制越来越多地纠正马达在转向方向上的驱动电流或限制工作油的流量。
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公开(公告)号：US07374411B2
公开(公告)日：2008-05-20
申请号：US11185812
申请日：2005-07-21
CPC分类号： F04C2/10 , F04C15/0023 , F05C2201/0439 , F05C2201/903 , F05C2251/046
摘要： An oil pump is provided which includes a cam ring made of a material having a first line expansion coefficient, a pump element rotatably disposed in the cam ring and smaller in an axial length than the cam ring, a first housing member disposed on one of axially opposite sides of the cam ring and made of a material having a second line expansion coefficient larger than the first line expansion coefficient, and a second housing member disposed on the other of the axially opposite sides of the cam ring and made of a material having a third line expansion coefficient than the first line expansion coefficient.
摘要翻译： 提供了一种油泵，其包括由具有第一线膨胀系数的材料制成的凸轮环，可旋转地设置在所述凸轮环中并且在轴向长度上小于所述凸轮环的泵元件;第一壳体构件，其设置在轴向 所述凸轮环的相对侧由具有大于所述第一线膨胀系数的第二线膨胀系数的材料制成，以及第二壳体构件，所述第二壳体构件设置在所述凸轮环的所述轴向相对侧中的另一个上，并且由具有 第三线膨胀系数比一线膨胀系数高。
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公开(公告)号：US20070209859A1
公开(公告)日：2007-09-13
申请号：US11654676
申请日：2007-01-18
申请人： Ayumu Miyajima , Isamu Tsubono , Takaomi Nishigaito , Toru Takahashi , Mitsuo Sasaki , Toshimitsu Sakaki , Tatsuo Matsumura
发明人： Ayumu Miyajima , Isamu Tsubono , Takaomi Nishigaito , Toru Takahashi , Mitsuo Sasaki , Toshimitsu Sakaki , Tatsuo Matsumura
IPC分类号： B62D5/06
CPC分类号： B62D5/065
摘要： In a power steering system comprising a power cylinder for assisting a steering power of a steering mechanism, a hydraulic pump for supplying a hydraulic pressure to the power cylinder, a first oil passage and a second oil passage connecting the power cylinder and the hydraulic pump respectively, a motor for driving the hydraulic pump, and power steering control means for calculating a command value to the motor based on the steering torque, a flow rate of the working oil supplied from a high-pressure side oil passage to a low-pressure side oil passage is restrained at the transition from the end of the steering state (lock end) of the steering mechanism to the returning. The flow-rate restraint increasingly corrects a driving current of the motor in the steering direction or limits the flow rate of the working oil.
摘要翻译： 在一种动力转向系统中，包括用于辅助转向机构的转向动力的动力缸，用于向动力缸提供液压的液压泵，分别连接动力缸和液压泵的第一油路和第二油路 用于驱动液压泵的电动机和用于根据转向转矩计算对电动机的指令值的动力转向控制装置，从高压侧油路供给到低压侧的工作油的流量 在从转向机构的转向状态（锁定结束）到返回的转变的过渡期间，油路被限制。 流量限制越来越多地纠正马达在转向方向上的驱动电流或限制工作油的流量。
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公开(公告)号：US20060018768A1
公开(公告)日：2006-01-26
申请号：US11185812
申请日：2005-07-21
CPC分类号： F04C2/10 , F04C15/0023 , F05C2201/0439 , F05C2201/903 , F05C2251/046
摘要： An oil pump is provided which includes a cam ring made of a material having a first line expansion coefficient, a pump element rotatably disposed in the cam ring and smaller in an axial length than the cam ring, a first housing member disposed on one of axially opposite sides of the cam ring and made of a material having a second line expansion coefficient larger than the first line expansion coefficient, and a second housing member disposed on the other of the axially opposite sides of the cam ring and made of a material having a third line expansion coefficient than the first line expansion coefficient.
摘要翻译： 提供了一种油泵，其包括由具有第一线膨胀系数的材料制成的凸轮环，可旋转地设置在所述凸轮环中并且在轴向长度上小于所述凸轮环的泵元件;第一壳体构件，其设置在轴向 所述凸轮环的相对侧由具有大于所述第一线膨胀系数的第二线膨胀系数的材料制成，以及第二壳体构件，所述第二壳体构件设置在所述凸轮环的所述轴向相对侧中的另一个上，并且由具有 第三线膨胀系数比一线膨胀系数高。
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公开(公告)号：US06836090B2
公开(公告)日：2004-12-28
申请号：US10464775
申请日：2003-06-19
IPC分类号： H02K2344
摘要： A brushless DC motor control system is arranged to control a command current indicative of a current to be supplied to the brushless motor on the basis of an estimated phase angle and an actual phase angle to control a current supplied to the brushless motor on the basis of an estimated phase angle and an actual phase angle, and to execute at least one of an estimated phase angle returning processing for returning the estimated phase angle and a current lowering processing for lowering a command current, when the estimated phase angle advances relative to the actual phase angle.
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