公开(公告)号：US20120248670A1

公开(公告)日：2012-10-04

申请号：US13423698

申请日：2012-03-19

申请人： Mikio Yamashita ,  Fumiyuki Yamaoka ,  Masaru Kouyama ,  Atsushi Maeda

发明人： Mikio Yamashita ,  Fumiyuki Yamaoka ,  Masaru Kouyama ,  Atsushi Maeda

IPC分类号： B60G15/06 ,  F16F13/00

CPC分类号： F16F9/49 ,  F16F9/19 ,  F16F9/516 ,  F16F9/585

摘要： A shock absorber includes first passages configured to communicate two chambers to flow a working fluid therebetween by movement of a piston, and a second passage configured to communicate with one chamber of the two chambers. The first passages have damping valves configured to suppress a flow of the working fluid generated by movement of the piston to generate a damping force. The second passage has a variable orifice having an area adjusted by an elastic member when a piston rod moves in an extension direction, a pressure chamber installed in series with the variable orifice, and a free piston configured to vary a volume of the pressure chamber by movement of the piston.

摘要翻译： 减震器包括第一通道，第一通道构造成通过活塞的运动而连通两个腔室以使工作流体在其间流动;以及第二通道，其构造成与两个腔室的一个室连通。 第一通道具有阻尼阀，其构造成抑制由活塞的运动产生的工作流体的流动以产生阻尼力。 第二通道具有可变孔口，当活塞杆沿延伸方向移动时具有由弹性构件调节的面积，与可变孔串联安装的压力室，以及被配置为通过以下方式改变压力室的体积的自由活塞 活塞的运动。

公开(公告)号：US20120160620A1

公开(公告)日：2012-06-28

申请号：US13338709

申请日：2011-12-28

申请人： Mikio YAMASHITA ,  Fumiyuki YAMAOKA

发明人： Mikio YAMASHITA ,  Fumiyuki YAMAOKA

IPC分类号： F16F9/34

CPC分类号： B60G17/08 ,  B60G13/08 ,  F16F9/468

摘要： Oil grooves of a shutter and oil holes of a stepped rod constitute first orifices as variable orifices whose opening areas are variable according to the rotational position of the shutter. The oil grooves of the shutter and oil holes of the stepped rod constitute third orifices as variable orifices. Cut portions of inner disk valves constitute second orifices. The opening areas of the variable orifices are changed by rotating the shutter, thereby controlling damping force characteristics in a low piston speed region and the relief pressures of pressure control valves independently of each other, and thus increasing the degree of freedom for adjusting the damping force characteristics.

摘要翻译： 挡板的油槽和阶梯杆的油孔构成作为可变孔的第一孔，其开口面积根据闸门的旋转位置是可变的。 闸门的油槽和阶梯杆的油孔构成可变孔的第三孔。 内盘阀的切割部分构成第二孔。 通过旋转闸门来改变可变孔的开口面积，由此控制低活塞速度区域中的阻尼力特性和压力控制阀的释放压力彼此独立地进行，从而增加了调节阻尼力的自由度 特点

公开(公告)号：US07290638B2

公开(公告)日：2007-11-06

申请号：US11131354

申请日：2005-05-18

申请人： Kohtaro Shiino ,  Fumiyuki Yamaoka ,  Tadaaki Fujii ,  Toshiro Yoda

发明人： Kohtaro Shiino ,  Fumiyuki Yamaoka ,  Tadaaki Fujii ,  Toshiro Yoda

IPC分类号： B62D5/04

CPC分类号： B62D5/04 ,  B62D5/0406 ,  B62D5/0421 ,  B62D5/046

摘要： An electric power steering system, includes a torque sensor disposed to a steering shaft to detect a steering torque. A first pinion is disposed to the steering shaft. A rack shaft is in mesh with the first pinion and connected with the steering shaft to change a rotational motion of the steering shaft to an axial motion of the rack shaft and provided to be operated in relation to the steering shaft. A first motor is connected with the first pinion to generate a steering assist torque in accordance with the steering torque detected by the torque sensor. A second pinion is disposed to be separate from the first pinion and in mesh with the rack shaft. A second motor is connected with the second pinion to generate a steering assist torque in accordance with the steering torque. A first control circuit is provided on a first control board for the first motor. A second control circuit is provided on the second control board for the second motor. The first control circuit monitors an abnormality in control state of the second control circuit and the second control circuit monitors an abnormality in control of the first control circuit.

摘要翻译： 一种电动助力转向系统，包括设置在转向轴上以检测转向转矩的转矩传感器。 第一小齿轮设置在转向轴上。 齿条轴与第一小齿轮啮合并与转向轴连接，以将转向轴的旋转运动改变为齿条轴的轴向运动，并被设置为相对于转向轴操作。 第一电动机与第一小齿轮连接，以根据由转矩传感器检测的转向转矩产生转向辅助转矩。 第二小齿轮设置成与第一小齿轮分离并与齿条轴啮合。 第二电动机与第二小齿轮连接，以根据转向转矩产生转向辅助转矩。 第一控制电路设置在用于第一电动机的第一控制板上。 第二控制电路设置在第二电动机的第二控制板上。 第一控制电路监视第二控制电路的控制状态的异常，第二控制电路监视第一控制电路的控制异常。

公开(公告)号：US06711482B2

公开(公告)日：2004-03-23

申请号：US10421848

申请日：2003-04-24

申请人： Kohtaro Shiino ,  Fumiyuki Yamaoka

发明人： Kohtaro Shiino ,  Fumiyuki Yamaoka

IPC分类号： B60G300

CPC分类号： B60G17/0162 ,  B60G2400/10 ,  B60G2400/204 ,  B60G2400/41 ,  B60G2400/44 ,  B60G2500/20 ,  B60G2600/02 ,  B60G2800/012

摘要： In vehicular suspension rigidity controlling apparatus and method, a plurality of suspensions intervened between a sprung mass of a vehicle body and an unsprung mass of a corresponding road wheel, a suspension rigidity adjusting section is installed to be enabled to adjust a rigidity of each suspension, a driving state of the vehicle is detected, a predictive determination is made whether the vehicular driving state is a state in which there is a possibility that the vehicle is rolled over from the detected driving state of the vehicle, and the rigidity of at least one of the suspensions is controllably adjusted in a direction to decrease a potential energy of the sprung mass of the vehicle when predictively determining that the vehicular driving state is the state that there is the possibility that the vehicle is rolled over.

摘要翻译： 在车辆用悬架刚性控制装置和方法中，安装有悬挂在车体的悬挂物体和相应的车轮的簧下质量块之间的多个悬架，安装有悬架刚性调整部，以调整各悬架的刚性， 检测到车辆的行驶状态，判断车辆行驶状态是否是车辆从检测到的车辆的行驶状态翻转的可能性的状态，以及至少一个 当预测性地确定车辆行驶状态是车辆翻转的可能性的状态时，可以在减小车辆弹簧质量的势能的方向上可控地调节悬架。

公开(公告)号：US5088760A

公开(公告)日：1992-02-18

申请号：US548222

申请日：1990-07-05

申请人： Shinobu Kakizaki ,  Fumiyuki Yamaoka ,  Mitsuo Sasaki ,  Hiroyuki Shimizu ,  Junichi Emura

发明人： Shinobu Kakizaki ,  Fumiyuki Yamaoka ,  Mitsuo Sasaki ,  Hiroyuki Shimizu ,  Junichi Emura

IPC分类号： B60G17/015 ,  B60G17/018 ,  F16F9/46 ,  F16F9/50

CPC分类号： B60G17/018 ,  F16F9/468 ,  B60G2204/81 ,  B60G2400/102 ,  B60G2400/206 ,  B60G2400/60 ,  B60G2500/10 ,  B60G2600/70 ,  B60G2600/74 ,  B60G2600/76

摘要： A suspension control system is designed to adjust suspension characteristics between hard and soft for bounding and rebounding stroke independently of each other. The system has a sensor means for monitoring speed of a vehicular body as a sprung mass for producing a vehicle body speed indicative signal, which vehicle body speed indicative signal has a variable signal polarity depending upon the direction of vibration, and a sensor means for monitoring relative speed between the vehicular body and a vehicular wheel as an unsprung mass for producing a relative speed indicative signal which also has a variable signal polarity depending upon the direction of relative movement of the vehicular body and the vehicular wheel. A control unit detects a combination of signal polarities of the vehicle body speed indicative signal and the relative speed indicative signal for adjusting damping characteristics for bounding and rebounding vibration independently of each other and depending on the detected combination.

摘要翻译： 悬架控制系统被设计成独立于彼此调整用于包围和回弹行程的硬和软之间的悬挂特性。 该系统具有一个传感器装置，用于监测作为用于产生车身速度指示信号的悬挂质量的车体的速度，该车体速度指示信号根据振动方向具有可变信号极性，以及用于监测的传感器装置 车身与车轮之间的相对速度作为簧下质量，用于产生相对速度指示信号，该相对速度指示信号也具有取决于车体和车轮的相对运动方向的可变信号极性。 控制单元检测车身速度指示信号的信号极性和相对速度指示信号的组合，用于相互独立地调节用于界限和回弹振动的阻尼特性，并且根据检测到的组合。

公开(公告)号：US4989701A

公开(公告)日：1991-02-05

申请号：US313017

申请日：1989-02-21

申请人： Fumiyuki Yamaoka ,  Tamotsu Yamaura

发明人： Fumiyuki Yamaoka ,  Tamotsu Yamaura

IPC分类号： F16F9/36 ,  F16F9/516

CPC分类号： F16F9/516 ,  F16F9/364

摘要： A shock absorber comprises a cylinder assembly defining a working chamber filled with a hydraulic working fluid and disposed therein a piston, and a fluid reservoir chamber filled with the hydraulic working fluid and a pneumatic working fluid, a communication path for connecting the working chamber and the fluid reservoir chamber for fluid communication therebetween, and a check and flow restriction assembly disposed within the communication path for selectively establishing and blocking fluid communication between the working chamber and the fluid reservoir chamber, the check and seal assembly includes a fluid check valve and a fluid flow restriction arranged in series, the flow restriction permitting pneumatic and hydraulic fluid flow directed to the fluid reservoir chamber during piston bounding stroke and providing flow restriction for the hydraulic fluid flow, and the check valve blocking fluid communication between the fluid reservoir chamber and the working chamber during piston rebounding stroke and permitting hydraulic fluid flow during the piston bounding stroke.

公开(公告)号：US4905799A

公开(公告)日：1990-03-06

申请号：US332469

申请日：1989-04-03

申请人： Fumiyuki Yamaoka ,  Mitsuo Sasaki

发明人： Fumiyuki Yamaoka ,  Mitsuo Sasaki

IPC分类号： F16F9/348 ,  F16F9/508

CPC分类号： F16F9/348

摘要： A shock absorber is provided a piston stroke dependent variable shock absorbing characteristics by a first and second flow restrictions associated with a piston. The first and second flow restrictions are arranged in a fluid path for communicating first and second working chambers defined within a shock absorber cylindrical housing in series. The first flow restriction associated with an orifice forming a part of the fluid path and has a predetermined relief pressure, for providing a predetermined first fixed flow restriction rate in response to a pressure difference between the first and second chambers smaller than or equal to the relief pressure and providing a second variable flow restriction rate in response to a pressure difference between the first and second chambers greater than the relief pressure. The second flow restriction is associated with the orifice for providing a third variable flow restriction rate variable depending upon the pressure difference between the first and second chamber.

摘要翻译： 通过与活塞相关联的第一和第二流动限制，提供了一种减震器，其具有活塞冲程相关的可变冲击吸收特性。 第一和第二流动限制被布置在流体路径中，用于连通限定在减震器圆筒形壳体内的第一和第二工作室。 与形成流体路径的一部分并且具有预定释放压力的孔口相关联的第一流动限制，用于响应于小于或等于救生圈的第一和第二腔室之间的压力差提供预定的第一固定流量限制率 并且响应于第一和第二室之间的压力差大于释放压力而提供第二可变流量限制速率。 第二流量限制与孔口相关联，用于根据第一和第二室之间的压力差提供第三可变流量限制率变量。

公开(公告)号：US08794405B2

公开(公告)日：2014-08-05

申请号：US13338709

申请日：2011-12-28

申请人： Mikio Yamashita ,  Fumiyuki Yamaoka

发明人： Mikio Yamashita ,  Fumiyuki Yamaoka

IPC分类号： F16F9/34 ,  B60G17/08 ,  B60G13/08

CPC分类号： B60G17/08 ,  B60G13/08 ,  F16F9/468

摘要： Oil grooves of a shutter and oil holes of a stepped rod constitute first orifices as variable orifices whose opening areas are variable according to the rotational position of the shutter. The oil grooves of the shutter and oil holes of the stepped rod constitute third orifices as variable orifices. Cut portions of inner disk valves constitute second orifices. The opening areas of the variable orifices are changed by rotating the shutter, thereby controlling damping force characteristics in a low piston speed region and the relief pressures of pressure control valves independently of each other, and thus increasing the degree of freedom for adjusting the damping force characteristics.

摘要翻译： 挡板的油槽和阶梯杆的油孔构成作为可变孔的第一孔，其开口面积根据闸门的旋转位置是可变的。 闸门的油槽和阶梯杆的油孔构成可变孔的第三孔。 内盘阀的切割部分构成第二孔。 通过旋转闸门来改变可变孔的开口面积，由此控制低活塞速度区域中的阻尼力特性和压力控制阀的释放压力彼此独立地进行，从而增加了调节阻尼力的自由度 特点

公开(公告)号：US08590680B2

公开(公告)日：2013-11-26

申请号：US13036598

申请日：2011-02-28

申请人： Atsushi Maeda ,  Masaru Kouyama ,  Mikio Yamashita ,  Fumiyuki Yamaoka

发明人： Atsushi Maeda ,  Masaru Kouyama ,  Mikio Yamashita ,  Fumiyuki Yamaoka

IPC分类号： F16F9/34

CPC分类号： F16F9/34

摘要： A shock absorber includes a first passage and a second passage to which a working fluid flows out from one chamber in a cylinder by movement of a piston, a damping valve installed on the first passage and configured to regulate a flow of the working fluid caused by sliding of the piston to generate a damping force, a back pressure chamber applying an internal pressure to the damping valve in a closing direction of the damping valve, a back pressure chamber inflow oil passage introducing the working fluid from one chamber into the back pressure chamber, a pressure chamber provided in-between on the second passage, and a free piston installed in the pressure chamber so as to freely slide in the pressure chamber.

摘要翻译： 减震器包括第一通道和第二通道，工作流体通过活塞的移动从气缸中的一个室流出，阻尼阀安装在第一通道上并被构造成调节由 活塞滑动以产生阻尼力;背压室，其在阻尼阀的关闭方向上向阻尼阀施加内部压力;背压室流入油通道，其将工作流体从一个室引入到背压室 设置在第二通道之间的压力室和安装在压力室中以在压力室中自由滑动的自由活塞。

公开(公告)号：US5261448A

公开(公告)日：1993-11-16

申请号：US871708

申请日：1992-04-21

申请人： Takayuki Furuya ,  Fumiyuki Yamaoka

发明人： Takayuki Furuya ,  Fumiyuki Yamaoka

IPC分类号： B60G17/08 ,  F16F9/348 ,  F16F9/512 ,  F16K15/03

CPC分类号： F16F9/5126 ,  B60G17/08 ,  F16F9/348 ,  B60G2202/24 ,  B60G2400/91 ,  B60G2500/10 ,  B60G2600/18 ,  Y10T137/7848 ,  Y10T137/7891

摘要： A check valve assembly has a seat plate formed with a first opening, a check plate with a valve section defining a second opening, and an orifice plate between the seat plate and the check plate. The orifice plate has a third opening covered by the valve section of the check plate and a fourth opening communicating the second opening in the check plate and with a cutout section connecting the third and fourth openings. The seat plate covers the fourth opening and the cutout section in the orifice plate.

摘要翻译： 止回阀组件具有形成有第一开口的座板，具有限定第二开口的阀部分的止回板和位于座板和止回板之间的孔板。 孔板具有由检查板的阀部分覆盖的第三开口和连通检查板中的第二开口的第四开口和连接第三和第四开口的切口部分。 座板覆盖孔板中的第四开口和切口部分。