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公开(公告)号：US06237713B1
公开(公告)日：2001-05-29
申请号：US08925030
申请日：1997-09-08
IPC分类号： B62D504
CPC分类号： B62D5/0427 , B62D5/0403 , B62D5/0448
摘要： A power steering unit according to the invention scarcely transmits sounds and vibrations coming from the electric motor to the steering wheel of a motor vehicle. It comprises a rack-shaft 2 to be coupled to the guiding wheels of a vehicle, a housing A for slidably containing the rack-shaft 2 and holding therein a coupling section 6 for causing the teeth of the rack-shaft 2 to engage those of a pinion arranged on the steering column 5 linked to the steering handle of the vehicle and an electric motor 1 coaxially arranged around the rack-shaft 2, which the rotary force is transmitted to the rack-shaft 2 by way of a ball screw mechanism 3 as the steering assisting power. It further comprises another housing B, for rotatably supporting the nut section of the ball-and-screw mechanism 3, the housing B being provided with a fitting section to be secured to the vehicle main body. The housing A is secured to the vehicle main body by a bracket 9, while the housing B is secured to the vehicle main body by a fitting section 10.
摘要翻译： 根据本发明的动力转向单元几乎不会将来自电动机的声音和振动发送到机动车辆的方向盘。 它包括一个与车辆导轮连接的齿条轴2，一个可滑动地容纳齿条轴2并保持在其中的连接部分6用于使齿条轴2的齿与 布置在与车辆的转向手柄相连的转向柱5上的小齿轮和围绕齿条轴2同轴布置的电动机1，旋转力通过滚珠丝杠机构3传递到齿条轴2 作为转向辅助动力。 它还包括另一壳体B，用于可旋转地支撑滚珠和螺杆机构3的螺母部分，壳体B设置有固定到车辆主体上的装配部分。 壳体A通过支架9固定到车辆主体，而壳体B通过装配部分10固定到车辆主体。
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公开(公告)号：US5598899A
公开(公告)日：1997-02-04
申请号：US459238
申请日：1995-06-02
申请人： Tsugio Onodera , Yoshiaki Taniguchi
发明人： Tsugio Onodera , Yoshiaki Taniguchi
CPC分类号： B62D5/04 , B60R16/0207
摘要： The starter motor power cables for the starter motor, having a relatively large cross sectional area and therefore involving a very little voltage drop, are used as a part of the motor drive power cables for the electric power steering system, and the length of the motor drive power cables can be thereby reduced with the net result that the overall voltage drop can be reduced, and a sufficient power output can be produced from the electric power steering system. Also, the reduction in the length of the motor drive power cables reduces the possibility of producing electromagnetic interferences.
摘要翻译： 作为用于电动助力转向系统的电机驱动电力电缆的一部分，使用具有相对大的横截面积并因此涉及非常小的电压降的起动电动机的起动电动机电力电缆，并且电动机的长度 因此可以减少驱动电力电缆，结果可以降低整体电压降，并且可以从电动助力转向系统产生足够的动力输出。 此外，电机驱动电力电缆的长度的减小降低了产生电磁干扰的可能性。
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3.发明授权Clutch control method and clutch controller for motor-driven power steering apparatus 失效用于电机驱动力转向装置的离合控制方法和离合器控制器
公开(公告)号：US5156227A
公开(公告)日：1992-10-20
申请号：US572842
申请日：1990-08-24
IPC分类号： B62D5/04
CPC分类号： B62D5/0478 , B62D5/0484
摘要： In a clutch control method of a motor-driven power steering apparatus, a clutch is disconnected when a change width of a steering angle detected by a steering angle sensor is a predetermined angle or less and a steering torque detected by a torque sensor is a predetermined torque or more in both the steering directions. A clutch controller of a motor-driven power steering apparatus includes a first transistor arranged between one terminal of the clutch coil and a power source, a second transistor arranged between the other terminal of the clutch coil and an earth, and a current sensor connected in series with the first and second transistor.
摘要翻译： 在电动动力转向装置的离合器控制方法中，当由转向角传感器检测到的转向角的变化幅度为规定角度以下且由转矩传感器检测出的转向转矩为规定角度时，离合器断开 扭矩或更大的转向。 电动机动力转向装置的离合器控制装置包括配置在离合器线圈的一个端子和电源之间的第一晶体管，配置在离合器线圈的另一端子与地之间的第二晶体管， 与第一和第二晶体管串联。
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公开(公告)号：US5871065A
公开(公告)日：1999-02-16
申请号：US925606
申请日：1997-09-08
IPC分类号： B62D5/04
CPC分类号： B62D5/0403 , B62D5/0427 , B62D5/0448
摘要： An electric power steering unit has an armature shaft that is free from axial forces and hence may have less rigorous requirements for its strength so that it may be manufactured more efficiently at reduced cost. It comprises a rack-shaft 2 to be coupled to the guiding wheels of a vehicle, a housing A for slidably containing the rack-shaft 2 and holding therein a coupling section 6 for causing the teeth of the rack-shaft 2 to engage those of a pinion arranged on the steering column 5 linked to the steering handle of the vehicle and an electric motor 1 coaxially arranged around the rack-shaft 2, which the rotary force is transmitted to the rack-shaft 2 by way of a ball screw mechanism 3 as the steering assisting power. A nut section 19 is linked to the armature shaft 11 of the electric motor 1 and rotatably supported by the housing B. The reaction force from the rack-shaft 2 generated by the inertia of the armature shaft 11 is transmitted to the housing B by way of the nut section 19 so that the armature shaft 11 is free from any axial force.
摘要翻译： 电动助力转向装置具有不受轴向力的电枢轴，因此对其强度可能具有较低的严格要求，从而可以以更低的成本更有效地制造。 它包括一个与车辆导轮连接的齿条轴2，一个可滑动地容纳齿条轴2并保持在其中的连接部分6用于使齿条轴2的齿与 布置在与车辆的转向手柄相连的转向柱5上的小齿轮和围绕齿条轴2同轴布置的电动机1，旋转力通过滚珠丝杠机构3传递到齿条轴2 作为转向辅助动力。 螺母部分19连接到电动机1的电枢轴11并由壳体B可旋转地支撑。由电枢轴11的惯性产生的齿条轴2的反作用力通过方式传递到壳体B. 使得电枢轴11没有任何轴向力。
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公开(公告)号：US06644434B2
公开(公告)日：2003-11-11
申请号：US10120294
申请日：2002-04-10
IPC分类号： B62D504
CPC分类号： B62D5/0472 , B62D5/0463
摘要： To provide a motor-driven power steering apparatus which can prevent the play of the handle from being generated at the time of steering and the noises from occurring at the time of a high rotation in a motor-driven power steering. In a motor-driven power steering apparatus mounted as a steering unit for steering running wheels such as front wheels or the like of a motor vehicle, the running wheels are steering-wheel turned by a steering assist force given by a brushless motor and a manual steering force given by operation of a steering handle. In a control circuit portion of this brushless motor, in accordance with a procedure of S1 to S8, the lead angle amount is computed in accordance with a detection signal from a torque sensor, and the rotation number is computed on the basis of a detection signal from the resolver, and the brushless motor is driven at an optimum lead angle obtained by correcting a lead angle amount corresponding to the load in accordance with the rotation number, and thereby it is possible to reduce a torque ripple at the time of a low rotation and reduce an electric current ripple at the time of a high rotation.
摘要翻译： 提供一种马达驱动的动力转向装置，其可以防止在转向时产生手柄的弹奏并且在马达驱动的动力转向中在高旋转时产生噪音。在电动驱动 动力转向装置安装为用于转向机动车辆的前轮等的行驶轮的转向单元，行驶轮是由无刷电动机给出的转向辅助力和由操作给出的手动转向力所转动的方向盘 的转向手柄。 在该无刷电动机的控制电路部分中，根据S1至S8的过程，根据来自转矩传感器的检测信号计算前导角量，并且基于检测信号计算转数 并且无刷电动机以通过根据转数校正对应于负载的引导角度量而获得的最佳引导角被驱动，从而可以减小低转速时的转矩脉动 并且在高旋转时减小电流纹波。
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公开(公告)号：US06989616B2
公开(公告)日：2006-01-24
申请号：US10452456
申请日：2003-06-03
摘要： A circuit-container unit 22 has a structure in which a board 26, electric components 27 constituting a drive control circuit 24, a frame 28 made of synthetic resin, an insulating plate 29 made of synthetic resin, a shield plate 31 made of aluminum, and a cover 32 made of synthetic resin are stacked over a unit body 25 made of aluminum. The unit body 25 is constituted by a mount part 33 and a plate-like base part 34. Component-container portions 36a and 36b are projected in the lower surface side of the base part 34. The component-container portions 36a and 36b are provided to be projected into a gap between the base part 34 and a motor body. The insides of the component-container portions 36a and 36b serve as container spaces 38. FETs 27a which are short in height are provided on the board 26. Tall capacitors 27b and relays 27c are contained in the component-container portions 36a and 36b. Useless space over the components is thus saved and the space efficiency is improved.
摘要翻译： 电路容器单元22具有如下结构：板26，构成驱动控制电路24的电气部件27，合成树脂制的框架28，合成树脂制的绝缘板29，铝制的屏蔽板31， 并且由合成树脂制成的盖32堆叠在由铝制成的单元主体25上。 单元体25由安装部33和板状基部34构成。 部件容器部分36a和36b突出在基部34的下表面侧。 部件容器部分36a和36b设置成突出到基部34和马达主体之间的间隙中。 部件容器部分36a和36b的内部充当容器空间38。 板26上设置有高度短的FET27a。 高电容器27b和继电器27c容纳在部件容器部分36a和36b中。 因此节省了部件上的无用空间，并提高了空间效率。
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公开(公告)号：US5988005A
公开(公告)日：1999-11-23
申请号：US62818
申请日：1998-04-20
IPC分类号： B62D5/04
CPC分类号： B62D5/0403 , B62D5/0427 , B62D5/0448 , Y10T74/18976 , Y10T74/1967
摘要： An electric power steering unit comprises a rack-shaft 2 to be coupled to the guiding wheels of a vehicle, a housing A for slidably containing the rack-shaft 2 and holding therein a coupling section 6 for causing the teeth of the rack-shaft 2 to engage those of a pinion arranged on the steering column 5 linked to the steering handle of the vehicle and an electric motor 1 coaxially arranged around the rack-shaft 2, which the rotary force is transmitted to the rack-shaft 2 by way of a ball screw mechanism 3 as the steering assisting power. A nut section 19 of the ball-screw mechanism 3 is rotatably supported by a housing B separately formed from the housing A, in a state of supporting the armature shaft 11 of the electric motor 1. The rack-shaft 2 is axially movable and supported by two points of support, one at the coupling section and the other at the nut section supported by the housing B. Thus, the rack-shaft is not supported by three points such as the conventional power steering unit but supported by two points, the precision requirements for the components are eased and hence the manufacturing cost thereof is reduced.
摘要翻译： 一种电动助力转向装置，其特征在于，具有与车辆的导向轮联结的齿条轴2，可滑动地容纳所述齿条轴2的壳体A，并且保持有用于使所述齿条轴2的齿的连结部6 与布置在与车辆的转向手柄相连接的转向柱5上的小齿轮和与齿条轴2同轴布置的电动机1啮合，旋转力通过一个 滚珠丝杠机构3作为转向辅助动力。 在支撑电动机1的电枢轴11的状态下，滚珠丝杠机构3的螺母部19由与壳体A分开形成的壳体B可旋转地支撑。齿条轴2可轴向移动并支撑 通过两个支撑点，一个在联接部分，另一个在由壳体B支撑的螺母部分处。因此，齿条轴不被诸如常规动力转向单元的三个点支撑，但是由两点支撑， 部件的精度要求得到了缓解，因此其制造成本降低。
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公开(公告)号：US5904224A
公开(公告)日：1999-05-18
申请号：US925291
申请日：1997-09-08
IPC分类号： B62D5/04
CPC分类号： B62D5/0403 , B62D5/0427 , B62D5/0448
摘要： An electric power steering unit includes a rack-shaft(2) to be coupled to the guiding wheels of a vehicle, a housing A for slidably containing the rack-shaft(2)and holding therein a coupling section(6)for causing the teeth of the rack-shaft(2)to engage those of a pinion arranged on the steering column(5)linked to the steering handle of the vehicle and an electric motor(1) coaxially arranged around the rack-shaft(2), which the rotary force is transmitted to the rack-shaft(2)by way of a ball screw mechanism 3 as the steering assisting power. A nut section(19)of the ball-screw mechanism(3)is rotatably supported by a housing(B) separately formed from the housing(A), in a state of supporting the armature shaft(11)of the electric motor(1). The rack-shaft(2) is axially movable and supported by two points of support, one at the coupling section and the other at the nut section supported by the housing(B). Thus, the rack-shaft is not supported by three points such as the conventional power steering unit but supported by two points, the precision requirements for the components are eased and hence the manufacturing cost thereof is reduced.
摘要翻译： 一种电动助力转向装置，包括：联接到车辆的导向轮的齿条轴（2），用于可滑动地容纳齿条轴（2）并保持在其中的用于使齿 与所述齿条轴（2）接合，以配合设置在与所述车辆的转向手柄相连接的转向柱（5）上的小齿轮和与所述齿条轴（2）同轴设置的电动机（1） 旋转力通过作为转向辅助动力的滚珠丝杠机构3传递到齿条轴（2）。 在支撑电动机（1）的电枢轴（11）的状态下，滚珠丝杠机构（3）的螺母部（19）由与壳体（A）分开形成的壳体（B）可旋转地支撑， ）。 齿条轴（2）可轴向移动并由两个支撑点支撑，一个在联接部分，另一个位于由壳体（B）支撑的螺母部分。 因此，齿条轴不由诸如常规动力转向单元的三个点支撑但是由两点支撑，所以部件的精度要求得到缓解，因此其制造成本降低。
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公开(公告)号：US4946001A
公开(公告)日：1990-08-07
申请号：US321628
申请日：1989-03-08
CPC分类号： B62D5/0466
摘要： In a control method and apparatus of an electric power steering apparatus of this invention, a reverse torque R against a steering torque and a torque produced by the motor are detected, and a target value T.sub.DT which is set based on the reverse torque and is used when the torque produced by the motor is controlled has a range given by T.sub.DT .times.R>R.sup.2.
摘要翻译： 在本发明的电动助力转向装置的控制方法和装置中，检测抵抗转向转矩和由电动机产生的转矩的反转转矩R，并且使用基于反转矩设定的目标值TDT 当由电动机产生的转矩被控制时具有由TDTxR> R2给出的范围。
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公开(公告)号：US4898258A
公开(公告)日：1990-02-06
申请号：US314180
申请日：1989-02-22
CPC分类号： B62D5/0421 , B62D6/10
摘要： An electric power steering apparatus includes a torsion bar, input and output shafts, an electric motor, and a detecting mechanism. The input and output shafts are coupled to each other by the torsion bar so as to be pivotally displaced in relation to each other. The electric motor is coupled to the output shaft so as to apply an auxiliary steering force. The detecting mechanism detects a relative, pivotal displacement of the input and output shafts. Main portions of the input and output shafts are coaxially arranged. One of the shafts is a cylindrical member having an outer end in which the torsion bar is housed. An inner end of one shaft is pivotally inserted in an opening of a cylindrical inner end of the other shaft. The detecting mechanism is arranged on the outer surface of an outer shaft of the input and output shafts at their overlap portion. A displacement transmitting portion for transmitting a displacement of one shaft to the detecting mechanism is formed in the inner end of one shaft so as to extend through the other shaft. The detecting mechanism can obtain a relative, pivotal displacement of the input and output shafts from a displacement of one shaft transmitted from the displacement transmitting portion.
摘要翻译： 电动助力转向装置包括扭杆，输入和输出轴，电动马达和检测机构。 输入轴和输出轴通过扭杆彼此联接以相对于彼此枢转地移动。 电动机联接到输出轴，以便施加辅助转向力。 检测机构检测输入和输出轴的相对的枢转位移。 输入轴和输出轴的主要部分同轴布置。 其中一个轴是具有容纳扭杆的外端的圆柱形构件。 一个轴的内端被枢转地插入另一个轴的圆柱形内端的开口中。 检测机构配置在输入输出轴的外轴的重叠部分的外表面上。 用于将一个轴的位移传递到检测机构的位移传递部分形成在一个轴的内端中，以便穿过另一个轴。 检测机构可以从位移传递部分传递的一个轴的位移获得输入和输出轴的相对的枢转位移。
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