Electric power steering apparatus
    51.
    发明授权
    Electric power steering apparatus 有权
    电动助力转向装置

    公开(公告)号:US6091214A

    公开(公告)日:2000-07-18

    申请号:US153395

    申请日:1998-09-15

    CPC分类号: B62D6/008

    摘要: An electric power steering apparatus comprises a control unit for drive-controlling a motor to apply an assist torque to a steering system based on signals from various sensors. The control unit comprises a slip angle difference predicting section for predicting a difference between a slip angle of front wheels and a slip angle of rear wheels, and a correcting section for correcting, based on an angle difference signal outputted from the slip angle difference predicting section, a target torque signal supplied to the motor. Behavior of a vehicle is predicted from the angle difference signal and the target torque signal is corrected by a correction amount corresponding to the angle difference signal so that the motor can be drives controlled with the influence of a change in a road surface reaction force taken into consideration.

    摘要翻译: 电动助力转向装置包括控制单元,用于根据来自各种传感器的信号驱动控制电动机以向转向系统施加辅助转矩。 控制单元包括滑差角预测部,用于预测前轮的滑移角与后轮的滑移角之间的差异;以及校正部,用于基于从滑差角预测部输出的角度差信号进行校正 提供给电动机的目标转矩信号。 根据角度差信号预测车辆的行为,并且通过与角度差信号相对应的校正量校正目标扭矩信号,从而可以受到采取的路面反作用力的变化的影响来驱动电动机 考虑。

    Steering system for vehicle
    52.
    发明授权
    Steering system for vehicle 失效
    车辆转向系统

    公开(公告)号:US6053273A

    公开(公告)日:2000-04-25

    申请号:US833173

    申请日:1997-04-04

    CPC分类号: B62D1/163 B62D6/10

    摘要: A steering system for a vehicle is provided in which each of the inner cables of two Bowden wires has one end thereof wound around and fixed to a driving pulley provided on a rotary shaft of a steering wheel, and the other end thereof is connected to a follower pulley. Spring sheets provided at end of outer tubes of the Bowden wires, are biased by springs and are connected to differential transformers. When a difference in tension corresponding to steering torque is generated between the two inner cables, the spring sheets are moved relative to each other, and a steering torque is determined based upon the amount of relative movement detected by the differential transformers. Thus, the steering torque inputted to the steering wheel can be correctly detected, while eliminating the influence of friction of the Bowden wires.

    摘要翻译: 提供了一种车辆用转向系统,其中两根鲍登线的每条内缆线的一端缠绕并固定在设在方向盘的旋转轴上的驱动轮上,另一端与 从动滑轮。 在鲍登线的外管末端设置的弹簧片由弹簧偏压并连接到差动变压器。 当在两个内部电缆之间产生对应于转向扭矩的张力差时,弹簧片相对于彼此移动,并且基于由差分变压器检测到的相对运动的量来确定转向转矩。 因此,可以正确地检测输入到方向盘的转向转矩,同时消除鲍登线的摩擦力的影响。

    Electric power steering apparatus
    53.
    发明授权
    Electric power steering apparatus 失效
    电动助力转向装置

    公开(公告)号:US6041885A

    公开(公告)日:2000-03-28

    申请号:US100309

    申请日:1998-06-19

    IPC分类号: B62D3/12 B62D5/04 B62D5/22

    CPC分类号: B62D5/0427 B62D3/12

    摘要: An electric power steering apparatus having a rack shaft supported at opposite end portions thereof by a rack-and-pinion mechanism and a ball-screw mechanism, respectively, includes a plain bearing slidably fitted around a rack shaft to support an intermediate portion of the rack shaft. The plain bearing thus provided considerably reduces a support span of the rack shaft and, hence, shifts a resonance frequency of the rack shaft to a higher frequency range. The rack shaft is, therefore, unlikely to cause vibration when external forces or moments caused due, for example, to a reaction from road surface during a steering operation act on opposite ends of the rack shaft.

    摘要翻译: 一种电动助力转向装置,其具有通过齿条和小齿轮机构和滚珠丝杠机构分别在其相对端部支撑的齿条轴,包括可滑动地装配在齿条轴上的滑动轴承,以支撑齿条的中间部分 轴。 因此,如此提供的滑动轴承显着地减小了齿条轴的支撑跨度,因此使齿条轴的共振频率向较高的频率范围移动。 因此,当在转向操作期间由于例如路面的反作用而引起的外力或力矩作用在齿条轴的相对端时,齿条轴不太可能引起振动。

    Automatic steering apparatus for vehicles
    54.
    发明授权
    Automatic steering apparatus for vehicles 失效
    车辆自动转向装置

    公开(公告)号:US6016881A

    公开(公告)日:2000-01-25

    申请号:US992338

    申请日:1997-12-17

    CPC分类号: B62D15/0285 B60T2201/10

    摘要: An apparatus for preventing a vehicle from deviating from the correct locus of movement thereof when the vehicle travels in a direction opposite to the direction designated by a gear selecting lever during an automatic parking control operation. When automatic parking control operation is started, the wheels are automatically steered on the basis of the relation between the traveling distance of the vehicle and a standard steering angle which is stored in advance in a storage device, and the vehicle is guided automatically to a parking position. When the vehicle, for which the automatic parking control operation has been started from a position O, moves back from a position Q due to the inclination of the road surface, the automatic parking control operation necessarily continues to be carried out unless the forward movement or backward movement of the vehicle is recognized and the vehicle travels to a different position O'. When the forward or backward movements of the vehicle is recognized, and when the vehicle moves back from the position Q, the standard steering angle .theta.ref is reproduced reversely from the position Q and outputted, whereby the vehicle can be returned to the original position O.

    摘要翻译: 一种用于在自动驻车控制操作期间当车辆沿与齿轮选择杆指定的方向相反的方向行驶时,防止车辆偏离其正确运动轨迹的装置。 当开始自动停车控制操作时,基于车辆的行驶距离与预先存储在存储装置中的标准转向角之间的关系自动转向车轮,车辆被自动引导至停车 位置。 当从位置O开始自动停车控制操作的车辆由于路面倾斜而从位置Q返回时,自动停车控制操作必须继续执行,除非前进或 识别车辆的向后运动,并且车辆行驶到不同的位置O'。 当识别到车辆的向前或向后运动时,并且当车辆从位置Q返回时,标准转向角θref从位置Q反向再现并被输出,由此车辆可以返回到原始位置O 。

    Cable-type steering device
    55.
    发明授权
    Cable-type steering device 失效
    电缆式转向装置

    公开(公告)号:US6012730A

    公开(公告)日:2000-01-11

    申请号:US917338

    申请日:1997-08-25

    CPC分类号: B62D1/163 Y10T74/2048

    摘要: A cable-type steering device is provided in which a sterring wheel and a gear box are connected to each other by wires, wherein a pulley to which wires are connected can be easily assembled to housings, while maintaining the enire length of the wire at a necessary minimum. A housing is divided into a first housing half and a second housing half. In assembling a pully having inner cables of Bowden wires previously wound therearound into the housing, collars mounted at ends of outer tubes of the Bowden wires are fixed in such a manner that they are sandwiched between a wire supporting groove in the first housing half and a lid portion of the second housing half.

    摘要翻译: 提供了一种电缆式转向装置,其中消声轮和齿轮箱通过电线彼此连接,其中连接电线的滑轮可以容易地组装到壳体,同时将电线的导线长度保持在 必要的最低限度。 壳体被分成第一壳体半部和第二壳体半部。 在组装具有先前缠绕在其中的Bowden线的内部电缆的脉冲的情况下,安装在Bowden线的外管的端部的套环被固定,使得它们被夹在第一壳体半部中的电线支撑槽和 第二壳体半部的盖部分。

    Valve operating system in internal combustion engine
    56.
    发明授权
    Valve operating system in internal combustion engine 失效
    内燃机阀门操作系统

    公开(公告)号:US5941201A

    公开(公告)日:1999-08-24

    申请号:US914993

    申请日:1997-08-20

    IPC分类号: F01L9/04 F16K31/06

    CPC分类号: F01L9/04

    摘要: A valve operating system for an internal combustion engine includes a valve-opening electromagnet and a valve-closing electromagnet for exhibiting an electromagnetic force for attracting an armature to operate an engine valve, and a valve-opening resilient means and a valve-closing resilient means for maintaining the armature at a predetermined neutral position during deenergization of the electromagnets. In each electromagnet, a coil is inserted between inner and outer yokes which are disposed in the form of a double-cylinder such that they open at their ends opposed to the armature and are magnetically coupled to each other at their ends opposite from the armature, and the coil is positioned so that the coil protrudes from at least one of the yokes toward the armature. The armature has an annular accommodating portion provided in a surface thereof opposed to each the electromagnets and capable of accommodating that portion of the coil which protrudes from the yoke. With such a structure, it is possible to increase the electromagnetic attracting force of each of the electromagnets and to enhance the performance of the engine.

    摘要翻译: 一种用于内燃机的气门操作系统包括一个开启电磁铁和一个用于显示用于吸引电枢操作发动机气门的电磁力的闭阀电磁铁,以及一个开阀弹性装置和一个闭阀弹性装置 用于在电磁体断电期间将衔铁保持在预定的中立位置。 在每个电磁体中,线圈被插入在两个圆柱体形式的内轭铁和外轭铁之间,使得它们在与电枢相对的端部处开口,并且在与电枢相对的端部处彼此磁耦合, 并且线圈被定位成使得线圈从至少一个轭向着电枢突出。 电枢具有设置在与每个电磁体相对的表面中的环形容纳部分,并且能够容纳从轭架突出的线圈部分。 通过这样的结构,能够提高各电磁铁的电磁吸引力,提高发动机的性能。

    Automatic steering system for vehicle
    57.
    发明授权
    Automatic steering system for vehicle 失效
    汽车自动转向系统

    公开(公告)号:US5931253A

    公开(公告)日:1999-08-03

    申请号:US59281

    申请日:1998-04-14

    摘要: The elimination of a steering angle detector from an automatic steering system including an electric motor used as an actuator is accomplished and the steering angle of a wheel is calculated based on the rotational angle of the electric motor. In the electric motor, if a terminal voltage is represented by u; a supplied current is j; a resistance is R; an inductance is L; a rotational angle is .alpha.; and a constant depending on characteristic of the electric motor is K, the terminal voltage u is represented by the following equations: ##EQU1## If this equation is solved with respect to the rotational angle .alpha. and the inductance L having a small value is omitted, the rotational angle .alpha. is given according to the following equation: ##EQU2## The rotational angle .alpha. of the electric motor and the steering angle of the wheel are in a proportional relationship to each other and hence, if the rotational angle .alpha. is calculated from the terminal voltage u and the supplied current j to the electric motor, the steering angle of the wheel can be found. Thus, a steering angle detector can be eliminated.

    摘要翻译: 实现了从包括用作致动器的电动机的自动转向系统消除转向角检测器,并且基于电动机的旋转角度来计算车轮的转向角。 在电动机中,如果端子电压由u表示; 供电电流为j; 电阻是R; 电感为L; 旋转角度为α; 并且取决于电动机的特性的常数为K,端子电压u由以下等式表示:如果相对于旋转角α求解该等式,并且省略具有小值的电感L,则旋转角度 α根据以下等式给出:电动机的旋转角度α和车轮的转向角度彼此成比例关系,因此如果根据端子电压u和所提供的旋转角度α计算旋转角度α 当前j到电动机,可以发现车轮的转向角。 因此,可以消除转向角检测器。

    Cable-type steering device
    58.
    发明授权
    Cable-type steering device 失效
    电缆式转向装置

    公开(公告)号:US5893426A

    公开(公告)日:1999-04-13

    申请号:US64617

    申请日:1998-04-23

    摘要: A cable-type steering device for controlling operation of a power-steering motor in accordance with the tension on stranded metal wire cables which connect a vehicle steering wheel to a steering gearbox. Tensions of the cables are detected by contact with an arm of a potentiometer. The surfaces of the cables are smoothed by a swaging treatment or resin coating treatment to prevent undesirable vibrations of the arm of the potentiometer and improve the detection accuracy of the potentiometer. The smoothing treatment eliminates undesirable vibration which might otherwise occur due to irregularity of the surface of untreated stranded metal wire cable.

    摘要翻译: 一种电缆式转向装置,用于根据将车辆方向盘连接到转向齿轮箱的绞合的金属线缆的张力来控制动力转向电动机的操作。 通过与电位计的臂接触来检测电缆的张力。 通过锻造处理或树脂涂覆处理使电缆的表面平滑,以防止电位计的臂的不期望的振动,并提高电位器的检测精度。 平滑处理消除了由于未处理的绞合金属线缆的表面的不规则性而可能发生的不期望的振动。

    Electrically operated power steering apparatus
    59.
    发明授权
    Electrically operated power steering apparatus 失效
    电动助力转向装置

    公开(公告)号:US5460235A

    公开(公告)日:1995-10-24

    申请号:US359628

    申请日:1994-12-20

    申请人: Yasuo Shimizu

    发明人: Yasuo Shimizu

    IPC分类号: B62D5/04

    CPC分类号: B62D5/0463

    摘要: An electrically operated power steering apparatus for applying an assistive steering force to a steering system has an electric motor for producing an assistive steering force to be applied to the steering system, a steering torque sensor for producing a steering torque signal indicative of a steering torque of the steering system, and a rotational speed sensor for producing a rotational speed signal indicative of a rotational speed of the electric motor. A controller produces a differential signal of the steering torque signal, calculates a steering rotational speed of the steering system based on the differential signal and the rotational speed signal, and controls the electric motor based on the steering torque signal and the steering rotational speed. The rotational speed signal may be calculated based on a motor current signal indicative of a motor current of the electric motor and a motor voltage signal indicative of a motor voltage of the electric motor.

    摘要翻译: 一种用于向转向系统施加辅助转向力的电动动力转向装置具有用于产生要施加到转向系统的辅助转向力的电动机,用于产生指示转向转矩的转向转矩信号的转向转矩传感器 转向系统和用于产生表示电动机的转速的转速信号的转速传感器。 控制器产生转向转矩信号的差分信号,基于差动信号和转速信号计算转向系统的转向转速,并根据转向转矩信号和转向转速控制电动机。 可以基于表示电动机的电动机电流的电动机电流信号和表示电动机的电动机电压的电动机电压信号来计算转速信号。

    Steering apparatus with variable steering angle ratio
    60.
    发明授权
    Steering apparatus with variable steering angle ratio 失效
    具有可变转向角比的转向装置

    公开(公告)号:US5423391A

    公开(公告)日:1995-06-13

    申请号:US102238

    申请日:1993-08-05

    申请人: Yasuo Shimizu

    发明人: Yasuo Shimizu

    CPC分类号: B62D5/008 B62D6/003 B62D7/08

    摘要: A steering apparatus for steering a motor vehicle includes a target yaw angular velocity decider which outputs a target yaw angular velocity corresponding to a turned angle of a steering wheel. A controller produces a steering angle ratio command signal based on the difference between the actual yaw angular velocity of the motor vehicle and the target yaw angular velocity, and controls a steering angle ratio varying mechanism to vary a steering angle ratio in order to equalize the actual yaw angular velocity substantially with the target yaw angular velocity.

    摘要翻译: 用于转向机动车辆的转向装置包括:目标横摆角速度判定器,其输出与方向盘的转角对应的目标横摆角速度。 控制器基于机动车辆的实际横摆角速度与目标横摆角速度之间的差产生转向角比指令信号,并且控制转向角比变化机构以改变转向角比,以便使实际 基本上具有目标横摆角速度的偏航角速度。