公开(公告)号：US6009364A

公开(公告)日：1999-12-28

申请号：US131684

申请日：1993-10-05

申请人： Shunichi Wada ,  Yasuo Naitou ,  Kazumichi Tsutsumi

发明人： Shunichi Wada ,  Yasuo Naitou ,  Kazumichi Tsutsumi

IPC分类号： B60T8/1763 ,  B60T8/1764 ,  B60T8/88 ,  B62D5/04 ,  B62D6/00

CPC分类号： B62D6/00 ,  B60T8/17636 ,  B60T8/1764 ,  B60T8/885 ,  B62D5/0463 ,  B62D6/006 ,  B62D6/008

摘要： A power steering control apparatus for a motor vehicle which ensures an appropriate steering force conforming to the prevailing road condition and hence the safety for the motor vehicle even when the wheels are locked due to hard brake applied on a slippery road. The apparatus includes a first microcomputer for determining a driving torque of a steering assist motor on the basis of steering torque information generated upon steering of a steering wheel and pseudo vehicle speed information to thereby generate and output a driving signal for the steering assist motor on the basis of the driving torque, and a second microcomputer for generating the pseudo vehicle speed signal on the basis of wheel rotation speed signals and acceleration/deceleration signal of the motor vehicle to thereby generate and output a brake actuation signal for wheels of the motor vehicle on the basis of the pseudo vehicle speed signal, the acceleration/deceleration information and brake application information. The first microcomputer may further include a memory for storing steering assist characteristics according to which the torque of the assist motor is changed.

摘要翻译： 一种用于机动车辆的动力转向控制装置，即使当由于施加在光滑道路上的硬制动而使车轮锁定时，其确保适合于当前道路状况的合适的转向力，并因此确保机动车辆的安全性。 该装置包括：第一微型计算机，用于基于在方向盘转向时产生的转向转矩信息和伪车速信息来确定转向辅助电动机的驱动转矩，从而生成并输出转向辅助电动机的驱动信号 驱动转矩的基础的第二微型计算机，以及基于车辆转速信号和机动车辆的加速/减速信号产生伪车速信号的第二微型计算机，从而生成并输出用于机动车辆的车轮的制动器致动信号 伪车速信号的基础，加速/减速信息和制动应用信息。 第一微型计算机还可以包括用于存储转向辅助特性的存储器，根据该存储器，辅助马达的扭矩改变。

公开(公告)号：US5602735A

公开(公告)日：1997-02-11

申请号：US322544

申请日：1994-10-13

申请人： Shunichi Wada

发明人： Shunichi Wada

IPC分类号： B62D6/02 ,  B62D5/04

CPC分类号： B62D5/0436 ,  B62D5/0478 ,  B62D5/0484 ,  B62D5/0493

摘要： A control apparatus for a motor-driven power steering system of a motor vehicle for preventing generation of actuation noise of a clutch without sacrificing reliability of the steering system. A current calculating/driving means 91 calculates a motor current command value I.sub.0 on the basis of a vehicle speed V and a steering torque T for driving a motor 13. An abnormal torque decision reference value arithmetic means 901 calculates an abnormal torque decision reference value T.sub.0 and a reference time t.sub.0 in dependence on the vehicle speed V, while a load torque calculating means 902 calculates a load torque T.sub.L on the basis of the steering torque T and the motor current command value I.sub.0. A motor rotation decision means 907 estimates a rotation number N.sub.M of the motor 13 from a motor regeneration voltage. When the load torque T.sub.L is greater than the abnormal torque decision reference value T.sub.0 and when a duration t.sub.L thereof is greater than the reference time t.sub.0, power supply to the motor 13 is interrupted under the control of a motor fault monitor/control means 904, provided that the rotation number N.sub.M is not greater than a motor stop decision reference rotation number N.sub.0. A clutch control means 92B is also so controlled that the steering torque T becomes equal to a preset torque limitation triggering value T.sub.1 so that the steering can be performed without encountering any appreciable obstacle.

摘要翻译： 一种用于机动车辆的电动机动力转向系统的控制装置，用于在不牺牲转向系统的可靠性的情况下防止离合器的致动噪声的产生。 电流计算/驱动装置91基于车速V和用于驱动电动机13的转向转矩T来计算电动机电流指令值I0。异常转矩判定基准值运算装置901计算异常转矩判定基准值T0 和基于车速V的参考时间t0，而负载转矩计算装置902基于转向转矩T和电动机电流指令值I0计算负载转矩TL。 电动机旋转判定装置907根据电动机再生电压来估计电动机13的转数NM。 当负载转矩TL大于异常转矩判定基准值T0，并且当其持续时间tL大于参考时间t0时，在电动机故障监视/控制装置904的控制下中断对电动机13的供电， 只要旋转数NM不大于电动机停止判定基准旋转数N0。 离合器控制装置92B也被控制使得转向转矩T变得等于预设的转矩限制触发值T1，使得可以执行转向而不会遇到任何可观的障碍物。

公开(公告)号：US5563790A

公开(公告)日：1996-10-08

申请号：US285106

申请日：1994-08-03

申请人： Shunichi Wada ,  Masanori Takagi

发明人： Shunichi Wada ,  Masanori Takagi

IPC分类号： B62D6/00 ,  B62D5/04 ,  B62D101/00 ,  B62D119/00

CPC分类号： B62D5/0436 ,  B62D5/0478 ,  B62D5/0487

摘要： A power steering system for a motor vehicle comprises a speed sensor 11, a steering torque sensor 12, a current calculating/driving circuit 21 for outputting a motor current command value on the basis of the vehicle speed and the steering torque, an assist torque generating electric motor 10 coupled to the steering system through an electromagnetic clutch 9, a clutch control circuit 50 for controlling a coupling effort of the electromagnetic clutch, an abnormal torque decision calculating circuit 31 for arithmetically determining an abnormal torque and a vehicle speed corresponding to the abnormal torque for a predetermined reference temporal duration to thereby output both an abnormal torque decision value indicating an abnormal torque corresponding to the vehicle speed detected by the vehicle speed sensor and the reference temporal duration, a load torque arithmetic circuit 33 for arithmetically determining both a load torque value indicating a sum of the steering torque detected by the steering torque sensor and an assist torque generated by the electric motor and a temporal duration of the load torque value, a torque comparison circuit 35 for comparing the load torque value with the abnormal torque decision reference value and comparing the temporal duration of the load torque value with the reference temporal duration, and a motor fault monitor/control circuit 40 responsive to results of the comparisons indicating that the load torque value is greater than the abnormal torque decision value and that the temporal duration of the load torque value is not shorter than the reference temporal duration, to thereby control the clutch control circuit so that the coupling effort of the electromagnetic clutch is lowered in a continuous manner to a predetermined coupling effort which permits manual steering.

摘要翻译： 用于机动车辆的动力转向系统包括速度传感器11，转向转矩传感器12，用于基于车速和转向转矩输出电动机电流指令值的电流计算/驱动电路21，产生辅助转矩的辅助转矩 通过电磁离合器9联接到转向系统的电动机10，用于控制电磁离合器的耦合力的离合器控制电路50，用于算术地确定异常转矩的异常转矩判定计算电路31和对应于异常的车速 从而输出指示与车速传感器检测到的车速相对应的异常转矩的异常转矩判定值和基准时间持续时间的负载转矩运算电路33，用于对负载转矩 表示通过检测的转向转矩的和的值 转向转矩传感器和由电动机产生的辅助转矩和负载转矩值的持续时间;扭矩比较电路35，用于将负载转矩值与异常转矩判定基准值进行比较，并比较负载转矩的时间持续时间 具有参考时间持续时间的值，以及响应于比较结果的电动机故障监视/控制电路40，其指示负载转矩值大于异常转矩判定值，并且负载转矩值的时间持续时间不短于 参考时间持续时间，从而控制离合器控制电路，使得电磁离合器的耦合力以连续的方式降低到允许手动转向的预定联接力。

公开(公告)号：US5414627A

公开(公告)日：1995-05-09

申请号：US103914

申请日：1993-08-10

申请人： Shunichi Wada ,  Kazuhisa Nisino ,  Yasushi Sasaki

发明人： Shunichi Wada ,  Kazuhisa Nisino ,  Yasushi Sasaki

IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D6/02 ,  B62D101/00 ,  B62D119/00

CPC分类号： B62D5/0478 ,  B62D5/0463

摘要： An electric power steering control device includes a motor controller for controlling an electric motor providing the assisting steering torque; and a clutch controller for controlling an electromagnetic clutch selectively connecting the assisting steering torque of the motor to the steering system. The degree of engagement (connection) of the clutch corresponds to the clutch current command level I.sub.C. When the vehicle speed is above a predetermined speed V.sub.0 (i.e., during high speed driving), the clutch current I.sub.C is set at a predetermined half current level I.sub.CR. During low vehicle speeds below V.sub.0, the clutch current I.sub.C is gradually decreased to the half current level I.sub.CR as the vehicle speed increases to V.sub.0. When the steering torque T is above a first predetermined level T1 indicative of an abnormality during high speed operation, the clutch current I.sub.C is set at a minimal level I.sub.CO. The steering torque T is returned to the half current level I.sub.CR when it is below a second predetermined level T2 smaller than the first level T1, thereby avoiding steering torque hunting.

摘要翻译： 电动助力转向控制装置包括：电动机控制器，用于控制提供辅助转向转矩的电动机; 以及用于控制电磁离合器的离合器控制器，其选择性地将马达的辅助转向扭矩连接到转向系统。 离合器的接合度（连接）对应于离合器电流指令级IC。 当车速超过预定速度V0（即，在高速行驶期间）时，将离合器电流IC设定为预定的半电流水平ICR。 在低于V0的低车速下，当车速增加到V0时，离合器电流IC逐渐降低到半电流水平ICR。 当转向转矩T高于表示高速运转时的异常的第一规定电平T1时，将离合器电流IC设定为最低电平ICO。 当转向转矩T低于小于第一电平T1的第二预定电平T2时，转向转矩T返回到半电流电平ICR，从而避免了转向转矩的旋转。

公开(公告)号：US5387005A

公开(公告)日：1995-02-07

申请号：US141201

申请日：1993-10-26

申请人： Kenji Hayase ,  Shunichi Wada ,  Shigeki Ohtagaki ,  Yoshihiro Tsuda

发明人： Kenji Hayase ,  Shunichi Wada ,  Shigeki Ohtagaki ,  Yoshihiro Tsuda

IPC分类号： B60G17/015 ,  B60G17/018 ,  F16F9/50 ,  G05D19/02 ,  B60G17/08

CPC分类号： B60G17/018 ,  B60G2202/41 ,  B60G2400/25 ,  B60G2400/91 ,  B60G2500/30 ,  B60G2600/02 ,  B60G2600/85

摘要： A suspension control system having a suspension unit between a wheel and a body of a vehicle, a fluid supply device for supplying a fluid to the suspension unit, a fluid discharge device for discharging the fluid from the suspension unit, an amplitude measurement device for measuring the amplitude of vertical vibrations of the vehicle body, a threshold value setting device for setting a threshold value of the amplitude of vertical vibrations, a controller for cancelling expansion and contraction of the suspension unit by controlling the fluid supply and the fluid devices when the amplitude of vertical vibrations is equal to or larger than the threshold value, a counter for counting the number of times the fluid supply and fluid discharge devices are controlled by the controller in a predetermined time period, and a threshold value changing device for setting, when the number of times counted by the counter is equal to or larger than a reference number, the threshold value in the threshold value setting device to a value equal to or smaller than an upper limit but larger than a value to which the threshold value was set at a preceding time, and for setting the threshold value to a value equal to or larger than a lower limit but smaller than the value at the preceding time, when the counted number of times is smaller than the reference number.

摘要翻译： 一种悬架控制系统，具有车轮与车体之间的悬挂单元，用于向悬架单元供给流体的流体供给装置，用于从悬架单元排出流体的流体排出装置，用于测量 车体的垂直振动的振幅，用于设定垂直振动幅度的阈值的阈值设定装置，通过控制流体供给和流体装置的振幅来抑制悬架单元的膨胀和收缩的控制器 的垂直振动等于或大于阈值，用于计数在预定时间段内由控制器控制流体供给和流体排出装置的次数的计数器和用于设定的阈值改变装置， 由计数器计数的次数等于或大于参考数，阈值在阈值中 旧值设定装置设定为等于或小于上限但是大于阈值设定在前一时刻的值的值，并且将阈值设置为等于或大于下限值但是 小于上述时间的值，当计数次数小于参考号时。

公开(公告)号：US5095751A

公开(公告)日：1992-03-17

申请号：US455015

申请日：1989-12-22

申请人： Shunichi Wada ,  Masayuki Yano

发明人： Shunichi Wada ,  Masayuki Yano

IPC分类号： G01P1/00 ,  G01P15/09

CPC分类号： G01P1/006 ,  G01P15/0907 ,  G01N2291/02827

摘要： An acceleration sensor is disclosed which includes a weight, piezoelectric element(s), a charge amplifier, an insulation plate and a conductive casing. The insulation plate fixedly mounts the weight and piezoelectric element(s) and is fixed to the conductive casing which is maintained at the earth potential. Input terminals of the charge amplifier are connected to the output electrodes of the element(s) and a grounding circuit of the amplifier is connected to the conductive casing so that the input terminals of the amplifier are floated from the earth potential.

公开(公告)号：US5088326A

公开(公告)日：1992-02-18

申请号：US526913

申请日：1990-05-22

申请人： Shunichi Wada ,  Masayuki Yano

发明人： Shunichi Wada ,  Masayuki Yano

IPC分类号： G01P1/02 ,  G01P15/09

CPC分类号： G01P15/0907 ,  G01P1/023 ,  G01N2291/02827

摘要： An accelerometer for automobiles is disclosed which is mounted on an electrically insulating plate (i.e., a printed circuit board) accommodated within an electrically conductive casing. The electrical connections from the electrodes of the piezoelectric element to the inputs of the charge amplifier are effected by a wiring pattern formed on the insulating plate. The casing consists of an open box-shaped base and a plate-shaped cover, a packing member being interposed therebetween, wherein an electrical connection between the base and the cover is provided by the fixing screws for fixing the cover to the base. The cover has a central recess in which through-type capacitors for producing hermetically sealed electrical connections through a wall of the casing are accommodated. Further, the charge amplifier comprises a temperature compensating capacitor having a positive temperature coefficient of capacitance which is coupled across the electrodes of the piezoelectric element; thus, the variation of the output voltage due to the change in the ambient temperature is compensated for by the capacitor and hence is reduced.

摘要翻译： 公开了一种用于汽车的加速度计，其安装在容纳在导电壳体内的电绝缘板（即，印刷电路板）上。 从压电元件的电极到电荷放大器的输入的电连接由形成在绝缘板上的布线图案来实现。 壳体由开放的箱形基座和板状盖子组成，其间插入有密封构件，其中通过用于将盖子固定到基座的固定螺钉提供基座和盖子之间的电连接。 盖具有中心凹部，其中容纳用于通过壳体的壁产生气密密封的电连接的通过型电容器。 此外，电荷放大器包括温度补偿电容器，其具有耦合在压电元件的电极两端的正电温度系数; 因此，由于环境温度的变化引起的输出电压的变化由电容器补偿，因此减小。

公开(公告)号：US5060157A

公开(公告)日：1991-10-22

申请号：US507323

申请日：1990-04-10

申请人： Masahiro Tado ,  Hiroshi Satoh ,  Noriyuki Inoue ,  Yoshihiko Utsui ,  Shunichi Wada

发明人： Masahiro Tado ,  Hiroshi Satoh ,  Noriyuki Inoue ,  Yoshihiko Utsui ,  Shunichi Wada

IPC分类号： B60G17/015 ,  B60G17/016 ,  B60G17/018

CPC分类号： B60G17/0182 ,  B60G17/0162 ,  B60G2400/102 ,  B60G2400/106 ,  B60G2400/204 ,  B60G2400/33 ,  B60G2400/41 ,  B60G2400/91 ,  B60G2500/102 ,  B60G2600/60 ,  B60G2600/90 ,  Y10S706/90

摘要： A shock absorber control apparatus which performs a fuzzy inference by use of a predetermined fuzzy rule regarding comfortable ride, steering stability and grounding efficiency corresponding to a detected running condition of a vehicle, thereby setting an optimum damping force. A shock absorber control apparatus which fetches a plurality of specified frequency components from a vertical acceleration signal of a vehicle body so as to perform a fuzzy inference by use of a fuzzy rule corresponding to a quantity of each frequency component, thereby setting an optimum damping force.

摘要翻译： 一种减震器控制装置，其通过使用与车辆的检测到的行驶状态对应的舒适乘坐，操纵稳定性和接地效率的预定模糊规则执行模糊推理，从而设定最佳阻尼力。 一种减震器控制装置，其从车体的垂直加速度信号中取出多个规定的频率成分，通过使用与各频率成分的量对应的模糊规则进行模糊推定，从而设定最佳的阻尼力 。

公开(公告)号：US5004080A

公开(公告)日：1991-04-02

申请号：US506419

申请日：1990-04-09

申请人： Shunichi Wada

发明人： Shunichi Wada

IPC分类号： H02P8/14 ,  B60G17/08 ,  F16F9/46

CPC分类号： F16F9/462 ,  B60G17/08

摘要： A controlling circuit for an actuator which is provided with a change-over switch for selecting a desired rotational position of a rotating shaft of the actuator, exciting circuit forming device for selectively magnetizing a plurality of electro-magnets in order to control rotation of the rotating shaft to be in a selected desired rotational position in response to an outputted change-over signal, and electrifying switching device for supplying electricity to the electro-magnets only for a predetermined duration from the time when selection of the rotational position of the rotating shaft is changed over by the change-over switch, wherein there is no generated any unnecessary heat for the actuator and construction of the circuit can be more simplified.

摘要翻译： 一种用于致动器的控制电路，其设置有用于选择致动器的旋转轴的期望旋转位置的转换开关，用于选择性地磁化多个电磁体的激励电路形成装置，以便控制旋转的旋转 轴响应于输出的转换信号处于选择的期望的旋转位置，并且在从旋转轴的旋转位置的选择的选择时起预定的持续时间内，将用于向电磁体供电的开关装置通电 通过切换开关切换，其中不会产生用于致动器的不必要的热量，并且可以更加简化电路的构造。

公开(公告)号：US4977506A

公开(公告)日：1990-12-11

申请号：US258410

申请日：1988-10-17

申请人： Mitsuhiko Hara ,  Shozo Takizawa ,  Tadao Tanaka ,  Yasutaka Taniguchi ,  Shunichi Wada ,  Shigeki Ohtagaki

发明人： Mitsuhiko Hara ,  Shozo Takizawa ,  Tadao Tanaka ,  Yasutaka Taniguchi ,  Shunichi Wada ,  Shigeki Ohtagaki

IPC分类号： B60G17/00 ,  B60G17/015 ,  B60G17/016 ,  B60G17/019 ,  F16F15/08

CPC分类号： B60G17/016 ,  B60G17/01908 ,  F16F15/08 ,  B60G2204/10 ,  B60G2204/20 ,  B60G2204/41 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2400/252 ,  B60G2400/34 ,  B60G2400/44 ,  B60G2400/50 ,  B60G2400/60 ,  B60G2500/102 ,  B60G2500/203 ,  B60G2600/26 ,  B60G2600/604 ,  B60G2600/66 ,  B60G2600/68

摘要： A suspension control apparatus for an automotive vehicle has a plurality of suspension units which are disposed between each of the wheels of the vehicle and the vehicle body. A plurality of actuators for controlling the characteristics of the suspension units are controlled by a control unit in response to the output of an acceleration sensor. The ground circuit of the acceleration sensor is connected to the ground circuit of the control unit.

摘要翻译： 一种用于机动车辆的悬架控制装置，具有设置在车辆的车轮和车身的车轮之间的多个悬架单元。 响应于加速度传感器的输出，由控制单元控制用于控制悬架单元的特性的多个致动器。 加速度传感器的接地电路连接到控制单元的接地电路。