公开(公告)号：US06405113B1

公开(公告)日：2002-06-11

申请号：US09697474

申请日：2000-10-26

申请人： Shigeru Yamawaki ,  Yasuo Shimizu

发明人： Shigeru Yamawaki ,  Yasuo Shimizu

IPC分类号： B61C1508

CPC分类号： B62D6/04 ,  B60T2220/03

摘要： A vehicle behavior control apparatus is disclosed. The vehicle behavior control apparatus 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; a steer angle detecting section for detecting a steer angle of the vehicle; and a control section for controlling turning behaviors of the vehicle, based on an angle difference signal from said slip angle difference predicting section and a steer angle signal from said steer angle detecting section.

摘要翻译： 公开了一种车辆行为控制装置。 车辆行为控制装置包括：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; 用于检测车辆的转向角的转向角检测部; 以及用于根据来自所述滑差角预测部的角度差信号和来自所述转向角检测部的转向角信号来控制车辆的转弯行为的控制部。

公开(公告)号：US06390230B1

公开(公告)日：2002-05-21

申请号：US09679915

申请日：2000-10-05

申请人： Yasuo Shimizu ,  Yasuharu Ohyama ,  Katsuji Watanabe ,  Shigeru Yamawaki ,  Atsuhiko Yoneda ,  Yasuhiro Terada

发明人： Yasuo Shimizu ,  Yasuharu Ohyama ,  Katsuji Watanabe ,  Shigeru Yamawaki ,  Atsuhiko Yoneda ,  Yasuhiro Terada

IPC分类号： B62D312

CPC分类号： F16H55/26 ,  B21K1/767 ,  B62D3/123 ,  B62D3/126 ,  B62D5/0421 ,  F16H55/08 ,  F16H55/285 ,  Y10T74/1967

摘要： An electric power steering apparatus having a motor for producing assist torque according to the steering torque, and a rack and pinion mechanism for transferring torque assistance to the rack shaft. The pinion and rack of the rack and pinion mechanism are both helical gears, and transfer high torque to the rack shaft. The helical gears have a curved arc tooth profile. The teeth of a curved arc tooth profile gear set mesh with contact between convex and concave surfaces. The contact area is therefore increased and contact pressure is decreased compared with involute teeth. Surface fatigue strength, bending strength, and bending fatigue strength are thus greater compared with involute teeth. The combined steering torque and assist torque is efficiently transferred to the rack shaft, and durability is sufficient to withstand torque loads from motor inertia.

摘要翻译： 一种电动助力转向装置，具有根据转向转矩产生辅助转矩的电动机和用于将转矩辅助传递给齿条轴的齿条齿轮机构。 齿条和小齿轮机构的小齿轮和齿条都是斜齿轮，并将高扭矩传递到齿条轴。 螺旋齿轮具有弯曲的弧形齿廓。 弯曲弧齿轮齿轮组的齿与凸表面和凹面之间的接触啮合。 因此，与渐开线齿相比，接触面积增大，接触压力降低。 因此，与渐开线齿相比，表面疲劳强度，弯曲强度和弯曲疲劳强度更大。 组合的转向扭矩和辅助扭矩被有效地传递到齿条轴，并且耐久性足以承受来自电动机惯性的转矩负载。

公开(公告)号：US06356828B1

公开(公告)日：2002-03-12

申请号：US09640669

申请日：2000-08-18

申请人： Yasuo Shimizu ,  Katsuhiro Sakai

发明人： Yasuo Shimizu ,  Katsuhiro Sakai

IPC分类号： G01C2200

CPC分类号： B62D15/0285 ,  B60T2201/10

摘要： An automatic steering system for a vehicle is provided which includes a memory section for storing data for a steering angle of a wheel with respect to a distance of movement of a vehicle in correspondence to four parking modes. If a desired parking mode is selected by a mode selecting switch and the vehicle is moved at a creep while depressing a brake pedal, a control section controls the operation of a steering actuator to perform automatic parking control. At this time, an object detector continuously detects the position of an object around or in the vicinity of the subject vehicle, and when there is an obstacle already existing within a locus of movement of the subject vehicle, or when there is a possibility that a moving obstacle may enter into the locus of movement of the subject vehicle, a warning is provided to a driver, and an automatic brake is operated. Thus, it is possible to reliably perform the automatic parking control when there is an obstacle.

摘要翻译： 提供一种用于车辆的自动转向系统，其包括存储部分，用于相对于四个停车模式相对于车辆的移动距离存储用于车轮的转向角的数据。 如果通过模式选择开关选择期望的停车模式，并且在按压制动踏板的同时车辆以蠕变方式移动，则控制部分控制转向致动器的操作以执行自动停车控制。 此时，物体检测器连续地检测物体在本车辆周围或附近的位置，并且当在本车辆的运动轨迹内存在障碍物时，或者当存在可能性时 移动障碍物可能进入本车辆的移动轨迹，向驾驶员提供警告，并且操作自动制动器。 因此，当存在障碍物时，可以可靠地进行自动停车控制。

公开(公告)号：US6148948A

公开(公告)日：2000-11-21

申请号：US53205

申请日：1998-04-01

申请人： Yasuo Shimizu ,  Yoshito Nakamura

发明人： Yasuo Shimizu ,  Yoshito Nakamura

IPC分类号： B62D6/00 ,  B62D5/04 ,  B62D117/00 ,  B62D119/00

CPC分类号： B62D5/0463

摘要： An electric power steering apparatus, which has an electric motor incorporated in a steering system to provide steering power assist directly to the steering system to thereby reduce manual steering effort required by the driver, includes a steering torque differentiating section arranged to output a differential value of a component of the steering torque which is free from a near-dc component and a high frequency component, a motor control signal determining section for subtracting a value corresponding to the steering velocity from a value corresponding the steering torque and adding the value corresponding to the steering torque to a value corresponding to the differential value to thereby determine a motor control signal, and a motor drive section for driving the electric motor on the basis of the motor control signal. With this arrangement, the electric power steering apparatus can improve the response characteristics of the steering power assist system while preventing undue increase in the gain of the control system at low frequencies in the range of 2 to 4 Hz, for example.

摘要翻译： 一种电动助力转向装置，其具有并入转向系统中的电动马达，以直接向转向系统提供转向动力辅助，从而减少驾驶员所需的手动转向力，其包括：转向转矩微分部分， 转向转矩的分量，其不含近直流分量和高频分量;马达控制信号确定部分，用于从对应于转向转矩的值中减去与转向速度对应的值，并将与 转向扭矩达到与差速值对应的值，从而确定电动机控制信号;以及电动机驱动部分，用于根据电动机控制信号驱动电动机。 通过这种布置，电动助力转向装置可以改善转向助力系统的响应特性，同时防止例如在2至4Hz的范围内的低频处的控制系统的增益不适当增加。

公开(公告)号：US6091214A

公开(公告)日：2000-07-18

申请号：US153395

申请日：1998-09-15

申请人： Shigeru Yamawaki ,  Yasuo Shimizu ,  Shigenori Takimoto

发明人： Shigeru Yamawaki ,  Yasuo Shimizu ,  Shigenori Takimoto

IPC分类号： B62D6/00 ,  B62D5/04 ,  B62D101/00 ,  B62D113/00 ,  B62D119/00 ,  B62D137/00 ,  B61C15/08

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。

公开(公告)号：US6053273A

公开(公告)日：2000-04-25

申请号：US833173

申请日：1997-04-04

申请人： Yasuo Shimizu ,  Hiroshi Tabata

发明人： Yasuo Shimizu ,  Hiroshi Tabata

IPC分类号： B62D1/04 ,  B62D1/16 ,  B62D3/02 ,  B62D5/04 ,  B62D5/06 ,  B62D6/00 ,  B62D6/10

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。

公开(公告)号：US6041885A

公开(公告)日：2000-03-28

申请号：US100309

申请日：1998-06-19

申请人： Katsuji Watanabe ,  Yasuo Shimizu

发明人： Katsuji Watanabe ,  Yasuo Shimizu

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。

公开(公告)号：US6016881A

公开(公告)日：2000-01-25

申请号：US992338

申请日：1997-12-17

申请人： Katsuhiro Sakai ,  Yasuo Shimizu

发明人： Katsuhiro Sakai ,  Yasuo Shimizu

IPC分类号： B62D6/00 ,  B60K28/10 ,  B60R21/00 ,  B62D5/04 ,  B62D15/02 ,  B62D113/00 ,  G08G1/16 ,  B60S9/00

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 。

公开(公告)号：US6012730A

公开(公告)日：2000-01-11

申请号：US917338

申请日：1997-08-25

申请人： Yasuo Shimizu ,  Hiroshi Tabata

发明人： Yasuo Shimizu ,  Hiroshi Tabata

IPC分类号： B62D1/04 ,  B62D1/16 ,  B62D5/04 ,  B62D5/06 ,  B60G1/00

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。

公开(公告)号：US5941201A

公开(公告)日：1999-08-24

申请号：US914993

申请日：1997-08-20

申请人： Yasuo Shimizu ,  Mitsuhito Yamazaki ,  Kenji Hirose ,  Atsushi Umemoto ,  Kouichi Ikoma

发明人： Yasuo Shimizu ,  Mitsuhito Yamazaki ,  Kenji Hirose ,  Atsushi Umemoto ,  Kouichi Ikoma

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。