-
公开(公告)号：EP0548510B1
公开(公告)日：1997-12-29
申请号：EP92118728
申请日：1992-11-02
申请人： FORD MOTOR CO , FORD FRANCE , FORD WERKE AG , FORD MOTOR CO
发明人： DUFFY JAMES J
-
公开(公告)号：EP0642970B1
公开(公告)日：1997-11-12
申请号：EP94114287.9
申请日：1994-09-12
-
公开(公告)号：EP0791521A1
公开(公告)日：1997-08-27
申请号：EP97400350.1
申请日：1997-02-17
申请人： KOYO SEIKO CO., LTD.
发明人： Matsuoka, Hirofumi, Koyo Seiko Co. Ltd. , Noritou, Yasuji, Koyo Seiko Co. Ltd. , Fukuda, Ken, Koyo Seiko Co. Ltd.
CPC分类号： B62D5/0487
摘要： An electric power steering apparatus comprises broken point characteristics determining means (13) for determining a value of a steering torque signal corresponding to a broken point of a broken line function on the basis of a vehicle speed signal from a vehicle speed sensor (11), a broken line function circuit (2) for determining the broken line function in accordance with the broken point determining signal determined by the broken point characteristics determining means (13) and outputting an analog signal corresponding to the broken line function, and means (7) for determining a target value of a motor current to drive an electric motor (24) for assisting steering on the basis of the analog signal.
摘要翻译： 本发明提供一种电动助力转向装置，该电动助力转向装置具备：基于来自车速传感器（11）的车速信号，决定与虚线功能的断点对应的转向转矩信号的值的断点特性判定单元（13） 虚线功能电路（2），用于根据由断点特性确定装置（13）确定的断点确定信号确定虚线功能，并输出与虚线功能对应的模拟信号;以及装置（7） 用于确定电动机电流的目标值以驱动用于基于模拟信号辅助转向的电动机（24）。
-
公开(公告)号：EP0752361A1
公开(公告)日：1997-01-08
申请号：EP96304980.4
申请日：1996-07-05
发明人： Uchida, Yukio , Saita, Norihiro
CPC分类号： F04C14/26 , B62D5/062 , B62D6/02 , G05D7/0126 , Y10S137/906 , Y10T137/1044 , Y10T137/2594 , Y10T137/2599
摘要： The flow control device or valve used in a power steering system of an automotive vehicle. A housing (1), an axially extending hole (H) in which a spool valve (14) is movable. A first pressure chamber (15) is defined in the hole, with one end of the spool valve. A drain passage (19) is opened to the first pressure chamber and closable with the spool valve. A second pressure chamber (16) is defined in the hole, with the other end of the spool valve. A restricting orifice (9) communicates with the first pressure chamber (15). An introduction passage (20) communicates through the orifice (9) with a discharge passage (8) and is opened to the first pressure chamber (15). The pressure in the discharge passage (18) is introduced via communication passages (21,25) to the second pressure chamber (16). A first spring (17) is disposed in the second pressure chamber (16) to bias the spool valve in a direction to close the drain passage (19). A spring holding member (37) movably and coaxially disposed in the hole (H) has a first end face (40) defining the second pressure chamber (16) and a second end face (41) which is larger in pressure-receiving area. The first spring (17) is disposed between the spool valve and the first end face (40). The second end face (41) defines a pressure control chamber (36) communicated with the second pressure chamber (16). Additionally, a second spring (48) is provided to bias the spring holding member (37) in a direction to reduce the volume of the pressure control chamber (36).
摘要翻译： 用于机动车辆的动力转向系统中的流量控制装置或阀。 壳体（1），其中滑阀（14）可移动的轴向延伸孔（H）。 第一压力室（15）被限定在孔中，滑阀的一端。 排水通道（19）向第一压力室敞开并与滑阀关闭。 第二压力室（16）限定在孔中，滑阀的另一端。 限制孔口（9）与第一压力室（15）连通。 引入通道（20）通过孔口（9）与排放通道（8）连通，并向第一压力室（15）开放。 排出通道（18）中的压力经由连通通道（21,25）引入第二压力室（16）。 第一弹簧（17）设置在第二压力室（16）中，以沿着关闭排水通道（19）的方向偏压滑阀。 可移动和同轴地设置在孔（H）中的弹簧保持构件（37）具有限定第二压力室（16）的第一端面（40）和受压面积较大的第二端面（41）。 第一弹簧（17）设置在滑阀和第一端面（40）之间。 第二端面（41）限定与第二压力室（16）连通的压力控制室（36）。 此外，第二弹簧（48）设置成沿着减小压力控制室（36）的容积的方向偏压弹簧保持构件（37）。
-
公开(公告)号：EP0739807A2
公开(公告)日：1996-10-30
申请号：EP96106474.8
申请日：1996-04-24
申请人： TRW INC.
发明人： Doolittle, Marc
CPC分类号： B62D5/0835 , B62D6/02
摘要： A power steering system includes first and second valve members (40 and 42) which are movable relative to each other to port fluid to a vehicle power steering motor (31) and a pump (24) for providing fluid to the first and second valve members (40 and 42) and the power steering motor. A force transmitting member (116) is connected with the first valve member (40) and movable toward and away from the second valve member (42) for applying a force to resist relative movement between the first and second valve members. A fluid pressure chamber (138) receives fluid from the pump (24), the pressure of which acts on the force transmitting member (116). The first and second valve members (40 and 42) include passages for conducting fluid to the fluid pressure chamber (138). A fixed size bleed orifice (182) conducts fluid from the pressure chamber (138) to a reservoir (32). The orifice (182) restricts the flow of fluid from the chamber (138) to the reservoir (32). A variable speed motor (14) which drives the pump (24) varies the flow rate of fluid to the chamber (138) as a function of vehicle speed to vary the pressure in the chamber.
-
公开(公告)号：EP0543062B1
公开(公告)日：1996-06-19
申请号：EP91310683.7
申请日：1991-11-20
CPC分类号： B62D5/083 , B62D6/02 , Y10T137/86654
-
公开(公告)号：EP0689985A1
公开(公告)日：1996-01-03
申请号：EP95108324.5
申请日：1995-05-30
发明人： Haga, Kyosuke , Suzuki, Mikio , Inaguma, Yoshiharu , Kato, Hideya
摘要： A hydraulic power steering apparatus includes a motor-driven pump (11) which discharges pressurized working fluid at a flow rate proportional to the rotational speed. A load-pressure responsive valve (20) is connected to a discharge passage (15) to which the pressurized fluid is discharged from the pump (11). The load-pressure responsive valve (20) bypasses the pressurized fluid to a reservoir (12) when the control valve (14) is in a neutral state, thereby reducing the amount of the pressurized fluid supplied to the control valve (14), and increases the amount of the pressurized fluid supplied to the control valve (14) when the load pressure of the pump (11) increases upon operation of the control valve (14). With this control, the energy consumed by the pump (11) can be reduced.
摘要翻译： 液压动力转向装置包括电动泵（11），该电动泵以与转速成比例的流量排出加压的工作流体。 负载压力响应阀（20）连接到排出通道（15），加压流体从泵（11）排出到排出通道（15）。 当控制阀（14）处于空档状态时，负载 - 压力响应阀（20）绕过加压流体到达储存器（12），由此减少供给到控制阀（14）的加压流体的量，并且 当控制阀（14）操作时泵（11）的负载压力增加时，增加供应到控制阀（14）的加压流体的量。 通过这种控制，可以减少泵（11）消耗的能量。
-
公开(公告)号：EP0658468A1
公开(公告)日：1995-06-21
申请号：EP94119998.6
申请日：1994-12-16
摘要： A hydraulic power Steering system includes a pump (100), a flow control valve (108), and a bypass control valve (120). The flow control valve (108) responds to a pressure drop across a metering orifice (105) disposed in a fluid supply passage (104) so as to control the flow rate of operating fluid by bypassing part of the operating fluid to a reservoir (101). A spring chamber (110) of the flow control valve (108) is connected to the supply passage (104) through a control orifice (109). The bypass control valve (120) is disposed between the spring chamber (110) and the reservoir (101) so as to increase the amount of bypassed fluid by controlling the pressure in the spring chamber (110). The bypass control valve (120) has a control spool (121), a load pressure introduction port (123A) connected to the upstream side of the control orifice (109) for leading the load pressure to a first end of the control spool (121) and a pilot port (123B) connected to the downstream side of the control orifice (109) for leading the pressure in the spring chamber (110) of the flow control valve (108) to a second end of the control spool (121). Moreover, a pressure receiving area of the second end of the control spool (121) is smaller than that of the first end of the control spool (121). Accordingly, a spring (122) having a small spring constant can be used in the bypass control valve (120), even when the control spool (121) is controlled within a short stroke. Further, the control spool (121), the load pressure introduction port (123A), and the pilot port (123B) are formed in a sleeve.
摘要翻译： 液压动力转向系统包括泵（100），流量控制阀（108）和旁通控制阀（120）。 流量控制阀（108）响应设置在流体供应通道（104）中的计量孔口（105）上的压降，以便通过将部分工作流体旁路到储存器（101）来控制工作流体的流量 ）。 流量控制阀（108）的弹簧室（110）通过控制孔（109）与供给通道（104）连接。 旁通控制阀（120）设置在弹簧室（110）和储存器（101）之间，以通过控制弹簧室（110）中的压力来增加旁路流体的量。 旁通控制阀（120）具有控制阀芯（121），连接到控制孔（109）的上游侧的负载压力引入口（123A），用于将负载压力引导到控制阀芯（121）的第一端 ）和连接到控制孔（109）的下游侧的先导口（123B），用于将流量控制阀（108）的弹簧室（110）中的压力引导到控制阀芯（121）的第二端， 。 此外，控制线轴（121）的第二端的受压面积小于控制线轴（121）的第一端的受压面积。 因此，即使控制阀芯（121）在短行程内被控制，也可以在旁通控制阀（120）中使用弹簧常数小的弹簧（122）。 此外，控制阀芯121，负载压力引入口123A和先导口123B形成在套筒中。
-
公开(公告)号：EP0585259A4
公开(公告)日：1994-07-27
申请号：EP92909368
申请日：1992-04-30
申请人： BISHOP A E
CPC分类号： B62D6/02 , B62D5/083 , Y10T137/86654 , Y10T137/86662
摘要： A hydraulic power steering rotary valve of generally conventional construction characterised in that the on-centre characteristics of the valve are governed by an arrangement of rolling elements (22) and pairs of notched elements (10, 20) arranged to produce a detent action between the input shaft (1) and the sleeve or driven member (2), one notched element (2) of each pair being fixed to a carrier (11) which is connected to the sleeve or driven member (2) by securing means (13) that, during assembly, is free to move under the influence of springs (23) acting on the notched elements (20) and thereby take up a position such that after completion of assembly the notched elements (10, 20) and rolling elements (22) are precisely in the correct position to provide the required detent action.
-
公开(公告)号：EP0585258A4
公开(公告)日：1994-07-27
申请号：EP92909363
申请日：1992-04-30
申请人： BISHOP A E
发明人： BISHOP ARTHUR ERNEST
CPC分类号： B62D6/02 , B62D5/083 , Y10T137/86654 , Y10T137/86662
摘要： A hydraulic power steering rotary valve of generally conventional construction characterized in that the on-centre characteristics of the valve are governed by an arrangement of rolling elements (22) and notched elements (10, 20) arranged to produce a detent action between the input shaft (1) and the sleeve or driven member (2), the rolling elements (22) rolling between opposite surface contours of a pair of opposed notched elements (10, 20), the contours each including a convex surface the shape of which is such that a centering torque between the input shaft (1) and the sleeve or driven member (2) is produced which decreases for increasing amounts of rotation away from a neutral condition of the rotary valve.
摘要翻译： 一种通常传统结构的液压动力转向旋转阀，其特征在于阀的中心特性由滚动元件和成对的切口元件的布置来控制，所述切口元件布置成在输入轴与套筒或被驱动构件之间产生制动作用 。 每对的一个切口元件被固定到通过固定装置连接到套筒或从动构件的载体上。 在组装期间，承载件在作用在切口元件上的弹簧的影响下自由移动，从而占据一个位置，使得在组装完成之后，切口元件和滚动元件精确地处于正确的位置以提供所需的制动作用。
-
-
-
-
-
-
-
-
-
搜索结果
342 条记录 (耗时 0.017 秒)
