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1. 发明专利

JP2005186747A Electric power steering apparatus 审中-公开
标题翻译：电动转向装置
公开(公告)号：JP2005186747A
公开(公告)日：2005-07-14
申请号：JP2003429882
申请日：2003-12-25
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： TOKUMOTO YOSHITOMO
IPC分类号： B62D6/00 , B62D5/04 , B62D113/00 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To provide an electric power steering apparatus which can eliminate the inconvenience causing the stop of the assist due to the misdetection of defects.
SOLUTION: A control apparatus is provided such that if the steering angle of front wheels does not change even when defects are detected, the steering assist is continued, and if the steering angle of the front wheels has changed when defects are detected, the steering assist is stopped.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电动助力转向装置，其可以消除由于缺陷检测错误导致辅助停止的不便。解决方案：提供一种控制装置，使得如果即使检测到缺陷，前轮的转向角也不变，则转向辅助继续进行，并且如果在检测到缺陷时前轮的转向角已经改变，转向辅助停止。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005106736A Magnetic sensor and torque detection device 审中-公开
标题翻译：磁传感器和扭矩检测装置
公开(公告)号：JP2005106736A
公开(公告)日：2005-04-21
申请号：JP2003343344
申请日：2003-10-01
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： TOKUMOTO YOSHITOMO
IPC分类号： G01L3/10 , G01R33/09
摘要： PROBLEM TO BE SOLVED: To provide a magnetic sensor which shows small variations in the intensity distribution of the magnetic field of each biasing magnet and saves time and effort in the adjustment of an output waveform.
SOLUTION: The magnetic sensor comprises one or more magnetoresistive elements MR1, MR2 and a biasing magnet M which forms a magnetic field around the magnetoresistive elements MR1, MR2 to increase the magnetic field sensitivity of the magnetoresistive elements MR1, MR2. On the basis of the resistance value of the magnetoresistive elements MR1, MR2, magnetic flux density passing through the magnetoresistive elements MR1, MR2 is detected. The biasing magnet M has a structure formed by stacking a plurality of magnets in the magnetic field direction.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种磁传感器，其显示每个偏置磁体的磁场的强度分布的微小变化，并且节省输出波形的调整的时间和精力。磁传感器包括一个或多个磁阻元件MR1，MR2和在磁阻元件MR1，MR2周围形成磁场的偏置磁体M，以增加磁阻元件MR1，MR2的磁场灵敏度。基于磁阻元件MR1，MR2的电阻值，检测通过磁阻元件MR1，MR2的磁通密度。偏置磁体M具有通过在磁场方向堆叠多个磁体而形成的结构。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2004117114A Detector for steering state 有权
公开(公告)号：JP2004117114A
公开(公告)日：2004-04-15
申请号：JP2002279436
申请日：2002-09-25
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： SHIBA MASATO , TOKUMOTO YOSHITOMO , MAEDA NAOKI , FURUTAKA KENICHI
IPC分类号： G01L3/10 , B62D5/04 , B62D5/06 , B62D15/02
CPC分类号： B62D6/10 , B62D15/0215 , G01L3/104 , G01L3/109
摘要： PROBLEM TO BE SOLVED: To provide a low-cost detector for steering state, having simple structure, which can surely prevent the rotation detection wave form of input/output shafts from shifting by one or more cycle, even when a torsion bar is twisted by a large amount, and which can thereby instantaneously detect the relative angular displacement of the input/output shafts. SOLUTION: In the detector which detects the steering state in a steering member 1, by respectively providing spur gear-like targets 34 and 35, having teeth parts 34a and 35a to the input shaft 32 connected to the steering member 1 and the output shaft 33 connected to the input shaft 32 via the torsion bar 31, the number of the teeth Z of the teeth parts 34a and 35a and the spring constant K of the torsion bar 31 are determined so as to satisfy the inequality, 360(deg)/Z>T(Nm)/K(Nm/deg) (where T is the allowable maximum value of the rotational torque applied to the steering member 1). COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2003341540A Electric power steering device 有权
标题翻译：电动转向装置
公开(公告)号：JP2003341540A
公开(公告)日：2003-12-03
申请号：JP2002152529
申请日：2002-05-27
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： TOKUMOTO YOSHITOMO , SHIBA MASATO , MAEDA NAOKI , FURUTAKA KENICHI
IPC分类号： G01L3/10 , B62D6/00 , B62D101/00 , B62D113/00 , B62D119/00 , G01B7/00 , G01B7/30
摘要： PROBLEM TO BE SOLVED: To provide an electric power steering device requiring a light steering/ retention load even when frequent and abrupt steering wheel operation is required. SOLUTION: A drive controlling means 21b determines which of an input shaft 32 or an output shaft 33 dynamically has an advantage, from angle speed and the like. At the time of driver input, not disturbance, and when input amount to the input shaft 32 is not less than a specified value, a motor 6 is driven to generate auxiliary force larger than auxiliary force obtained by a normal assist map in a forward assist direction. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使需要频繁且急剧的方向盘操作，也提供需要轻的转向/保持负载的电动助力转向装置。解决方案：驱动控制装置21b从角速度等确定输入轴32或输出轴33中的哪一个动态地具有优点。在驱动器输入时，不产生扰动，当输入轴32的输入量不小于指定值时，马达6被驱动以产生大于由前向辅助中的正常辅助图获得的辅助力的辅助力方向。版权所有（C）2004，JPO

5. 发明专利

JP2003341532A Electric power steering device 审中-公开
标题翻译：电动转向装置
公开(公告)号：JP2003341532A
公开(公告)日：2003-12-03
申请号：JP2002154568
申请日：2002-05-28
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： MAEDA NAOKI , FURUTAKA KENICHI , SHIBA MASATO , TOKUMOTO YOSHITOMO
IPC分类号： G01L3/10 , B62D5/04 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide an electric power steering device capable of resolving a feeling of uncomfortableness of a driver during steering due to output change, and improving steering feeling, even when the output of a rotation detecting portion is greatly changed before/after finishing output correction. SOLUTION: A control unit (a control portion) 21 controls driving of an electric motor 6 on the basis of a temporary command value smaller than a decided command value, before finishing output correction to the output of first and second rotation detecting portions respectively outputting signals corresponding to rotation angles of an input shaft 32 and an output shaft 33. The control unit 21 controls diving of the electric motor 6 so as to make the temporary command value gradually agree with the decided command value after finishing output correction. COPYRIGHT: (C)2004,JPO
摘要翻译：解决的问题：提供一种电动助力转向装置，其能够解决由于输出变化而导致的驾驶员在转向期间的不舒服感，并且改善转向感觉，即使当旋转检测部分的输出在 /完成输出校正后。解决方案：控制单元（控制部分）21在完成对第一和第二旋转检测部分的输出的输出校正之前，基于小于所确定的命令值的临时命令值来控制电动机6的驱动分别输出对应于输入轴32和输出轴33的旋转角度的信号。控制单元21控制电动机6的潜水，以便在完成输出校正之后使临时指令值与所确定的指令值逐渐一致。版权所有（C）2004，JPO

6. 发明专利

JP2003104218A SENSOR FITTING STRUCTURE AND STEERING DEVICE 审中-公开
公开(公告)号：JP2003104218A
公开(公告)日：2003-04-09
申请号：JP2001305789
申请日：2001-10-01
申请人： KOYO SEIKO CO
发明人： TOKUMOTO YOSHITOMO
IPC分类号： G01L3/00 , B62D5/04 , G01L3/10 , G01L19/14
摘要： PROBLEM TO BE SOLVED: To easily regulate a positional displacement of a sensor in relation to a body, to which the sensor is to be fitted, and to easily fit the sensor at the optimal position. SOLUTION: The sensor 5 for detecting the torque to be applied to a rotor with the rotation of the rotor is provided with insertion holes 5c and 5d for insertion of bolts and a positioning projecting part 18 for deciding a fitting position of the sensor 5. The body 5, to which the sensor 5 is to be fitted, is provided with screw holes 10c and 10d, to which the bolts are to be screwed, and a positioning recessed part 15, in which the positioning projecting part 18 is to be fitted. The positioning projecting part 18 is fitted in the positioning recessed part 15 to prevent the generation of positional displacement of the sensor 5, and in this condition, the sensor 5 is fitted by fastening the bolts.

7. 发明专利

JP2003097908A TURNING ANGLE DETECTING DEVICE, TORQUE DETECTING DEVICE AND STEERING DEVICE 审中-公开
公开(公告)号：JP2003097908A
公开(公告)日：2003-04-03
申请号：JP2001292534
申请日：2001-09-25
申请人： KOYO SEIKO CO
发明人： FURUTAKA KENICHI , MAEDA NAOKI , TOKUMOTO YOSHITOMO
IPC分类号： B62D5/04 , B62D5/06 , B62D6/10 , B62D15/02 , G01B7/00 , G01B7/30 , G01D5/18 , G01L3/10 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a turning angle detecting device which can detect a turning angle even in the case a characteristic dull portion exists in a signal detected by a detecting means and make it easy to manage the accuracy of the signal detected by the detecting means when manufacturing the device. SOLUTION: One or more targets 3 are mounted on a rotating body 12 so that a first detecting means 1A outputs a detection signal according to the rotation of the rotating body 12, and a second detecting means 1B outputs a detection signal with a phase different form that of the first detecting means 1A, and the turning angle of the rotating body 12 is detected based on the detection signals output by the first detecting means 1A and the second detecting means 1B respectively.

8. 发明专利

JP2003004556A Torque detecting device and steering device 审中-公开
标题翻译：扭矩检测装置和转向装置
公开(公告)号：JP2003004556A
公开(公告)日：2003-01-08
申请号：JP2001193587
申请日：2001-06-26
申请人： Koyo Seiko Co Ltd , 光洋精工株式会社
发明人： TOKUMOTO YOSHITOMO
IPC分类号： G01L3/10 , B62D5/04 , B62D5/06 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a torque detecting device capable of carrying out the correction between channels of a detector and suppressing the difference in the torque when the channel of the detector is changed. SOLUTION: The torque detecting device is provided with two sets which are arranged apart along length of a rotating shaft and are composed of a plurality of targets being disposed on a rotating body so that the portion to be detected varies periodically and continuously according to the rotation, and a plurality of detecting means detecting the portion close to them, and detects a rotating torque applied to the rotating shaft on the basis of the portion detected respectively by the detecting means selected from both the sets. The torque detecting device includes a correction means which calculates the average of the portions detected respectively by the two sets of detecting means and corrects the detected result so that the portions detected respectively by both sets of detecting means correspond to the average, a calculating means (S17) which calculates the difference between the rotating torques before and after the time when the selected detecting means is changed (S15), and a means which further corrects the result corrected by the correction means on the basis of the difference calculated by the calculating means (S18).
摘要翻译：要解决的问题：提供一种能够在检测器的通道之间进行校正的扭矩检测装置，并且当检测器的通道改变时抑制转矩的差异。解决方案：扭矩检测装置设置有两组，它们沿着旋转轴的长度分开设置，并且由设置在旋转体上的多个靶组成，使得被检测部分根据旋转周期性地连续地变化以及多个检测装置，其检测靠近它们的部分，并且基于分别由从两个组中选择的检测装置检测到的部分来检测施加到旋转轴的旋转转矩。扭矩检测装置包括：校正装置，其计算由两组检测装置分别检测的部分的平均值，并校正检测结果，使得由两组检测装置分别检测的部分对应于平均值，计算装置（ S17），其计算在所选择的检测装置改变之前和之后的旋转扭矩之间的差（S15）;以及装置，其进一步校正由校正装置校正的结果，基于由计算装置计算的差（S18）。

9. 发明专利

JP2002365043A ROTATIONAL ANGLE DETECTOR, TORQUE DETECTOR AND STEERING APPARATUS 失效
公开(公告)号：JP2002365043A
公开(公告)日：2002-12-18
申请号：JP2001171642
申请日：2001-06-06
申请人： KOYO SEIKO CO
发明人： TOKUMOTO YOSHITOMO
IPC分类号： G01L3/10 , B62D1/16 , B62D5/04 , G01B7/00 , G01B7/30 , G01B21/22 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a low cost rotational angle detector capable of detecting an absolute angle of the case of a plurality of rotations and to provide a torque detector and a steering apparatus. SOLUTION: The rotational angle detector comprises a pivotal axis 26, transmission means 42, 44 for rotating a rotor 21 at a predetermined rotation ratio to a rotation of the axis 26, and an arithmetic processing unit 40 for detecting the rotational angle θ of the axis 26 from a rotational angle ϕ based on the ratio. The torque detector and the steering apparatus are provided.

10. 发明专利

JP2002257539A ROTATION ANGLE DETECTION DEVICE, TORQUE DETECTION DEVICE AND STERRING DEVICE 失效
公开(公告)号：JP2002257539A
公开(公告)日：2002-09-11
申请号：JP2001053157
申请日：2001-02-27
申请人： KOYO SEIKO CO
发明人： TOKUMOTO YOSHITOMO
IPC分类号： G01L3/10 , B62D5/04 , B62D5/06 , G01B7/00 , G01B7/30 , G01B21/22 , G01D5/18 , G01L5/22
摘要： PROBLEM TO BE SOLVED: To provide a rotation angle detection device capable of defining all values of signals acquired by a detection means with one function, by forming a target so that a detection signal acquired by the detection means forms an approximate sine-wave shape, and calculating a rotation angle around the rotation axis of a rotor by the detection signal from one detection means relative to one target disc. SOLUTION: The target is constituted from the plural of first inclined parts inclined in one direction along the circumferential surface of the rotor and second inclined parts inclined in another direction along the circumferential surface of the rotor. The first inclined part and the second inclined part are arranged alternately, connected at each one end, and are installed on the axially- symmetrical position relative to a straight line, so as to have an angle over sixty degrees and below eighty degrees against the straight line in the axial length direction of the rotor passing the connection point.

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