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    • 1. 发明授权
    • Motor-assisted power steering control device
    • 电动助力转向控制装置
    • US5631833A
    • 1997-05-20
    • US474187
    • 1995-06-07
    • Shunichi WadaYasuo NaitoKazuhisa NishinoMasanori Takagi
    • Shunichi WadaYasuo NaitoKazuhisa NishinoMasanori Takagi
    • B62D5/04
    • B62D5/0463
    • A motor for a motor-assisted power steering device is controlled with a control value which is obtained by detecting an error between an actual steering torque which has undergone phase lead compensation and a target steering torque, and by summing a proportional value, an integration value and a differentiation value of the error, or with a control value which is obtained by detecting an error between actual steering torque and a target torque; obtaining a proportional value, an integration value and a differentiation value of the error; clipping the lower limit value of the integration value with a first clipping circuit, and clipping the upper and lower limit values of motor-controlling quantity obtained by summing the proportional value, the integration value and the differentiation value by using a second clipping circuit.
    • 用于电动助力动力转向装置的电动机通过检测通过相位超前补偿的实际转向转矩和目标转向转矩之间的误差而获得的控制值,并且通过将比例值相加,积分值 以及误差的微分值,或者通过检测实际转向转矩和目标转矩之间的误差而获得的控制值; 获得误差的比例值,积分值和微分值; 用第一限幅电路削波积分值的下限值,并且通过使用第二限幅电路来削减通过对比例值,积分值和微分值求和而获得的电动机控制量的上限值和下限值。
    • 2. 发明授权
    • Motor-assisted power steering control device
    • 电动助力转向控制装置
    • US5467279A
    • 1995-11-14
    • US51545
    • 1993-04-26
    • Shunichi WadaYasuo NaitoKazuhisa NishinoMasanori Takagi
    • Shunichi WadaYasuo NaitoKazuhisa NishinoMasanori Takagi
    • B62D5/04
    • B62D5/0463
    • A motor for a motor-assisted power steering device is controlled with a control value which is obtained by detecting an error between an actual steering torque which has undergone phase lead compensation and a target steering torque, and by summing a proportional value, an integration value and a differentiation value of the error, or with a control value which is obtained by detecting an error between actual steering torque and a target torque; obtaining a proportional value, an integration value and a differentiation value of the error; clipping the lower limit value of the integration value with a first clipping circuit, and clipping the upper and lower limit values of motor-controlling quantity obtained by summing the proportional value, the integration value and the differentiation value by using a second clipping circuit.
    • 用于电动助力动力转向装置的电动机通过检测通过相位超前补偿的实际转向转矩和目标转向转矩之间的误差而获得的控制值,并且通过将比例值相加,积分值 以及误差的微分值,或者通过检测实际转向转矩和目标转矩之间的误差而获得的控制值; 获得误差的比例值,积分值和微分值; 用第一限幅电路削波积分值的下限值,并且通过使用第二限幅电路来削减通过对比例值,积分值和微分值求和而获得的电动机控制量的上限值和下限值。
    • 3. 发明授权
    • Motor-driven power steering apparatus and method
    • 电动助力转向装置及方法
    • US5341891A
    • 1994-08-30
    • US946598
    • 1992-09-18
    • Shunichi WadaTadayuki HaraYasuo NaitoShinichi KohgeKazuhisa Nishino
    • Shunichi WadaTadayuki HaraYasuo NaitoShinichi KohgeKazuhisa Nishino
    • B62D6/02B62D5/04B62D5/00
    • B62D5/0478
    • A motor-driven power steering apparatus and method for a vehicle are able to avoid frequent on-off operations of an electromagnetic clutch 14 as much as possible, which connects or disconnects a motor 13 with or from a steering system, thus improving the durability of the clutch 14 and suppressing the generation of undesirable noise and shocks upon connection and disconnection of the clutch 14. A clutch controller 191 controls a clutch current Ic supplied to the clutch 14 based on the vehicle speed V in such a manner that it sets the clutch current Ic to a first predetermined clutch current level I(V) so as to place the clutch into a substantially engaged state when the vehicle speed V is less than a first predetermined vehicle speed Vo, and to a second predetermined clutch current level Icr which is less than the first predetermined clutch current level I(V) so as to place the clutch into a partially engaged state when the vehicle speed V is equal to or greater than the first predetermined vehicle speed Vo. Preferably, the clutch current Ic is set to a third predetermined clutch current level Ico which is less than the second predetermined clutch current level Icr so as to substantially disengage said electromagnetic clutch when a steering torque T is equal to or greater than a predetermined value To when the vehicle speed is equal to or greater than the first predetermined value Vo.
    • 一种用于车辆的马达驱动的动力转向装置和方法能够尽可能地避免电磁离合器14的频繁的断开操作,其将马达13与转向系统连接或断开,从而提高了电动离合器14的耐久性 离合器14,并且抑制在离合器14的连接和断开时产生不期望的噪音和冲击。离合器控制器191基于车速V 1控制提供给离合器14的离合器电流Ic,使得它将离合器 电流Ic到第一预定离合器电流水平I(V),以便当车速V小于第一预定车速Vo时将离合器置于基本接合状态,并将第二预定离合器电流水平Icr设置为 小于第一预定离合器电流水平I(V),以便当车速V等于或大于第一预定值时将离合器置于部分接合状态 开采车速Vo。 优选地,离合器电流Ic被设定为小于第二预定离合器电流水平Icr的第三预定离合器电流水平Ico,以便当转向转矩T等于或大于预定值To时,基本上使所述电磁离合器脱离 当车速等于或大于第一预定值Vo时。
    • 4. 发明授权
    • Motor-driven power steering apparatus and method
    • 电动助力转向装置及方法
    • US5299650A
    • 1994-04-05
    • US945405
    • 1992-09-16
    • Shunichi WadaYasuo Naito
    • Shunichi WadaYasuo Naito
    • B62D5/04B62D6/00B62D6/02B62D101/00B62D117/00B62D119/00B62D137/00
    • B62D5/0478B62D5/0436B62D5/0484
    • A motor-driven power steering apparatus and method for a vehicle are able to avoid frequent on-off operations of an electromagnetic clutch 14 as much as possible, which connects or disconnects a motor 13 with or from a steering system, thus improving the durability of the clutch 14 and suppressing the generation of undesirable noise and shocks upon connection and disconnection of the clutch 14. The motor 13 is deenergized by a motor controller 191 when the vehicle speed V is equal to or greater than a predetermined value Vo. The clutch 14 is turned off to disconnect the motor from the steering system when an abnormality in the steering system is determined during high speed travel of the vehicle. Such an abnormality is determined if the motor current flowing through the deenergized motor is not equal to zero, or if the steering torque is equal to or greater than a predetermined value and a voltage across the motor when deenergized is equal to zero, or if the rotational speed of the steering wheel is equal to or greater than a predetermined value and the motor voltage is equal to zero.
    • 一种用于车辆的马达驱动的动力转向装置和方法能够尽可能地避免电磁离合器14的频繁的断开操作,其将马达13与转向系统连接或断开,从而提高了电动离合器14的耐久性 离合器14,并且在离合器14的连接和断开时抑制不期望的噪音和冲击的产生。当车速V等于或大于预定值Vo时,马达13由马达控制器191断电。 当在车辆的高速行驶期间确定转向系统的异常时,离合器14被关闭以将电动机与转向系统断开。 如果流过断电电动机的电动机电流不等于零,或者如果转向转矩等于或大于预定值,并且当断电时电动机两端的电压等于零时,则确定这种异常,或者如果 方向盘的转速等于或大于预定值,电动机电压等于零。
    • 5. 发明授权
    • Anti-lock brake control system for motor vehicle and brake force control
method thereof
    • 用于机动车辆的防抱死制动控制系统及其制动力控制方法
    • US5964509A
    • 1999-10-12
    • US863366
    • 1997-05-27
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • Yasuo NaitoChiaki FujimotoMitsuhiro Mimura
    • B60T8/173B60T8/00B60T8/52
    • B60T8/173
    • An anti-lock brake control system for a motor in which influence of vibration of wheel driving shafts occurring upon braking in the state where the wheels (1a, 1b) are operatively connected to a prime mover such as an internal combustion engine is suppressed to thereby enhance the braking performance of the system. Rotation speed (Vw) of each of the driving wheels (1a to 1d) of the motor vehicle is detected for determining wheel acceleration (Gw). A torsion torque (Tt) applied to a wheel drive shaft is detected. The wheel acceleration (Gw) is corrected with the torsion torque (Tt) for determining a corrected acceleration (Gc). The brake application pressure is controlled in dependence on combinations of two variables, i.e., the corrected acceleration (Gc) and the wheel acceleration (Gw). Owing to detection of the torsion torque (Tt), not only the influence of the vibration of the wheel (1a to 1d) due to the torsion torque (Tt) but also a delay involved in the detection of the torsion torque (Tt) can be taken into consideration in the anti-lock brake control.
    • 在车轮(1a,1b)可操作地连接到诸如内燃机的原动机的状态下,在制动时产生的车轮驱动轴的振动的影响的电动机的防抱死制动控制系统被抑制,从而 提高系统的制动性能。 检测机动车辆的各驱动轮(1a〜1d)的转速(Vw),以确定车轮加速度(Gw)。 检测到施加到轮驱动轴的扭矩(Tt)。 用用于确定校正加速度(Gc)的扭矩(Tt)校正车轮加速度(Gw)。 根据两个变量的组合,即校正后的加速度(Gc)和车轮加速度(Gw)来控制制动施加压力。 由于扭转扭矩(Tt)的检测,不仅由于扭矩(Tt)而导致的车轮(1a〜1d)的振动的影响,而且与扭转扭矩(Tt)的检测相关的延迟也可以 在防抱死制动控制中要考虑到。
    • 6. 发明授权
    • Position detecting method and apparatus for laser sensor
    • 激光传感器位置检测方法及装置
    • US5399870A
    • 1995-03-21
    • US961901
    • 1993-01-08
    • Nobitoshi ToriiRyo NiheiYasuo NaitoHiroshi WakioTakashi Iwamoto
    • Nobitoshi ToriiRyo NiheiYasuo NaitoHiroshi WakioTakashi Iwamoto
    • B25J19/04G01B11/00G01C3/06G01S17/46G05D3/12G01N21/86
    • G01S17/48G01B11/00
    • The present invention relates to a position detecting method and its apparatus that is capable of improving detecting accuracy in a laser sensor using a Charged Coupled Device (CCD) as a light receiving element. A sum of products of an output C.sub.i of each cell in a light receiving element and a cell position X.sub.i is obtained, and the cell outputs C.sub.i are added. When the cell output C.sub.i exceeds a predetermined threshold value, a counter is reset. When the cell output C.sub.i decreases down below the threshold value, the sample hold signal SH is counted. When the counted value of the counter becomes a predetermined value, a division circuit divides the above-obtained sum of products by the above addition value to obtain a center of gravity of the sum of products as a light receiving position. Then, thus obtained value is stored in a latch buffer. When a plurality of light receiving positions are obtained, the control unit picks out only the light receiving position of primary reflection beam from among them to identify the object position. Accordingly, the accuracy of the position detecting operation can be improved, since resolution in position detecting according to the invention is not determined on the unit of cell, but a light receiving position between adjacent cells in CCD can also be detected.
    • PCT No.PCT / JP92 / 00630 Sec。 371日期:1993年1月8日 102(e)日期1993年1月8日PCT提交日期为1992年5月15日PCT公布。 WO92 / 20993 PCT出版物 日期:1992年11月26日。本发明涉及一种位置检测方法及其装置,其能够提高使用带电耦合器件(CCD)作为光接收元件的激光传感器的检测精度。 获得光接收元件中的每个单元的输出Ci和单元位置Xi的乘积之和,并且增加单元输出Ci。 当单元输出Ci超过预定阈值时,计数器被复位。 当单元输出Ci降低到低于阈值时,对样本保持信号SH进行计数。 当计数器的计数值变为预定值时,除法电路将上述乘积之和除以上述加法值,得到作为光接收位置的乘积之和的重心。 然后,将这样获得的值存储在锁存缓冲器中。 当获得多个光接收位置时,控制单元从其中仅拾取一次反射光束的光接收位置以识别对象位置。 因此,能够提高位置检测动作的精度,因为根据本发明的位置检测的分辨率未以单元为单位,而且还可以检测CCD中的相邻单元之间的光接收位置。