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公开(公告)号：US4685528A
公开(公告)日：1987-08-11
申请号：US839542
申请日：1986-03-14
申请人： Mikio Suzuki , Shigeo Iwashita , Masaaki Hayashi
发明人： Mikio Suzuki , Shigeo Iwashita , Masaaki Hayashi
CPC分类号： B62D5/0463
摘要： In an electric power steering device, an electric motor is drivingly connected to a steering shaft with a steering wheel for generating an assisting power to rotate the steering shaft. A memory has stored a control pattern which non-linearly varies an assisting power with variations in a steering effort. A microprocessor responsive to a vehicle speed detected by a speed sensor ascertains whether the detected vehicle speed is within a low speed range or within a high speed range. Ascertaining that the detected speed is within the low speed range, the microprocessor searches the memory for an assisting power corresponding to the steering effort detected by a torque sensor. Ascertaining that the detected vehicle speed is within the high speed range, on the other hand, the microprocessor calculates an assisting power based upon the detected steering effort and a constant. The microprocessor then outputs a control signal representing either of the searched and calculated assisting power to a signal modulator, which modulates the control signal based upon the vehicle speed from the speed sensor so that the assisting power generated by the electric motor is controlled to meet the modified signal from the signal modulator.
摘要翻译： 在电动助力转向装置中，电动机驱动地连接到具有用于产生辅助动力以转动转向轴的方向盘的转向轴。 存储器存储了控制模式，其随着转向力的变化而非线性地改变辅助功率。 响应于由速度传感器检测到的车速的微处理器确定检测到的车速是否在低速范围内或在高速范围内。 确定检测到的速度在低速范围内，微处理器在存储器中搜索对应于由转矩传感器检测的转向力的辅助功率。 另一方面，为了确定所检测的车速在高速范围内，微处理器基于检测到的转向力和常数来计算辅助动力。 然后微处理器将表示搜索和计算的辅助功率的控制信号输出到信号调制器，信号调制器根据来自速度传感器的车速来调制控制信号，从而控制由电动机产生的辅助电力以满足 来自信号调制器的修改信号。
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公开(公告)号：US4653601A
公开(公告)日：1987-03-31
申请号：US813834
申请日：1985-12-27
IPC分类号： B62D5/04
CPC分类号： B62D5/0457 , B62D5/0475
摘要： In an electric power steering system, a d.c. motor is drivingly connected to a steering shaft with a steering for generating an assisting power to rotate the steering shaft. Independently of an alternator for charging a battery, a d.c. generator driven by a vehicle engine is dedicated for supplying an electric power to the d.c. motor. A control circuit is responsive to a signal representing a manual torque applied to the steering and reads out one of objective values from a memory. The control circuit is further responsive to a fed-back signal indicative of a load applied to the d.c. motor and controls electric current flowing across a field coil of the d.c. generator in such a manner that the difference between the read-out objective value and the fed-back signal becomes zero.
摘要翻译： 在电动助力转向系统中， 马达驱动地连接到具有用于产生辅助动力以转动转向轴的转向的转向轴。 独立于用于对电池充电的交流发电机，直流 由车辆发动机驱动的发电机专用于向直流电供应电力。 发动机。 控制电路响应于表示施加到转向的手动转矩的信号，并从存储器中读出一个目标值。 控制电路进一步响应于反馈信号，该反馈信号指示施加到直流电的负载。 电动机并控制流过直流电场的励磁线圈的电流。 发生器以读出目标值和反馈信号之间的差成为零的方式。
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公开(公告)号：US5467281A
公开(公告)日：1995-11-14
申请号：US208953
申请日：1994-03-11
申请人： Shigeo Iwashita , Akihiro Ohno , Takashi Shirai
发明人： Shigeo Iwashita , Akihiro Ohno , Takashi Shirai
摘要： A controller for a power steering apparatus in which operation fluid for generating assist torque is pumped by a motor-driven pump. The controller controls the flow rate of the operation fluid by changing the voltage supplied to the motor. The controller is provided with a section for generating a target value representing a target voltage to be supplied to the motor, a section for detecting the voltage actuary supplied to the motor, and a section for generating a voltage compensation value based on the detected voltage. The voltage compensation value is obtained by integrating a voltage difference between the target voltage and the detected voltage. The voltage compensation value is added to the target value to obtain a compensated target value. The motor is driven by a voltage corresponding to the compensated target value. In another type of controller, a voltage following rate indicating a target variation in voltage is increased to increase the voltage supplied to the motor only when the voltage difference increases. With this, responsiveness can be increased without causing overshoots.
摘要翻译： 一种动力转向装置的控制器，其中用于产生辅助转矩的操作流体由电动泵泵送。 控制器通过改变提供给电动机的电压来控制工作流体的流量。 该控制器设置有用于产生表示要提供给电动机的目标电压的目标值的部分，用于检测提供给电动机的电压精算器的部分以及基于检测到的电压产生电压补偿值的部分。 电压补偿值通过对目标电压和检测电压之间的电压差进行积分而得到。 将电压补偿值加到目标值以获得补偿目标值。 电机由对应于补偿目标值的电压驱动。 在另一种类型的控制器中，增加指示电压目标变化的电压跟随速率，以仅在电压差增大时增加提供给电动机的电压。 因此，可以增加响应能力而不引起过冲。
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公开(公告)号：US4620917A
公开(公告)日：1986-11-04
申请号：US721495
申请日：1985-04-10
申请人： Masaei Nozawa , Sigeru Kamiya , Shigeo Iwashita
发明人： Masaei Nozawa , Sigeru Kamiya , Shigeo Iwashita
摘要： Carbon particles are effectively removed from contaminated lubricating oil, for example, in a diesel engine by an electrostatic filtering device comprising a porous dielectric inserted between positive and negative electrodes in a container into which the contaiminated lubricating oil in introduced. In particluar, in the preferred embodiment the spaced parallel electrodes sandwich a porous dielectric film for collecting particles and a porous spacer which is disposed between the porous dielectric film and one of the electrodes. The pores of the porous spacer have a size which is considerably larger than that of the pores of the particle-collecting film.
摘要翻译： 碳颗粒有效地从受污染的润滑油中除去，例如在柴油发动机中通过静电过滤装置，该静电过滤装置包括插入正电极和负电极之间的多孔电介质，所述容器中引入有接触的润滑油。 特别地，在优选实施例中，间隔开的平行电极夹着用于收集颗粒的多孔电介质膜和设置在多孔电介质膜和电极之一之间的多孔间隔物。 多孔隔离物的孔的尺寸比颗粒收集膜的孔的尺寸大得多。
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公开(公告)号：US4637483A
公开(公告)日：1987-01-20
申请号：US800724
申请日：1985-11-22
申请人： Kunihiko Eto , Shigeo Iwashita , Tsutomu Matsumoto
发明人： Kunihiko Eto , Shigeo Iwashita , Tsutomu Matsumoto
CPC分类号： B62D6/00
摘要： A steering characteristic controller for a power steering system of the type that an actuator operable in response to an electric current thereto varies the characteristic of a assisting power generated by a power steering gear. The controller includes a signal converter responsive to a signal from a vehicle speed sensor for converting the vehicle speed signal into a voltage signal corresponding thereto and a drive circuit connected to the actuator for driving the same in response to the voltage signal from the signal converter. The controller further includes a gain adjuster, which varies the output gain of the voltage signal from the signal converter in correspondence to the magnitude of a signal from a vehicle load sensor.
摘要翻译： 一种用于动力转向系统的转向特性控制器，其能够响应于其电流而可操作的致动器改变由动力转向装置产生的辅助动力的特性。 控制器包括响应于来自车速传感器的信号的信号转换器，用于将车速信号转换为与其对应的电压信号，以及连接到致动器的驱动电路，用于响应于来自信号转换器的电压信号而驱动该驱动电路。 控制器还包括增益调节器，其对应于来自车辆负载传感器的信号的幅度改变来自信号转换器的电压信号的输出增益。
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6.发明授权
公开(公告)号：US4633706A
公开(公告)日：1987-01-06
申请号：US666856
申请日：1984-10-31
申请人： Seitoku Ito , Shigeo Iwashita , Sigeru Kamiya , Hiroshi Noguchi , Nobuhisa Mori
发明人： Seitoku Ito , Shigeo Iwashita , Sigeru Kamiya , Hiroshi Noguchi , Nobuhisa Mori
CPC分类号： G01M15/106 , G01N1/2258 , G01N15/0618 , F02B3/06 , G01N1/2205 , G01N1/38 , G01N2001/2261
摘要： A system for measuring amounts of particulates exhausted from a vehicle internal combustion engine, such as a diesel engine, has a dilution tunnel into which exhaust gas is introduced and mixed with and diluted by clear air. One part of the diluted gas is introduced into a first sampling arrangement in which a first filter is provided for collecting particulates of dry soot and another part of the diluted gas is introduced into a second sampling arrangement in which a second filter is provided for collecting particulates of soluble organic fraction (SOF). The amounts of dry soot and SOF are calculated in a real time manner in accordance with the pressure drops across the filters on the basis of the time differential of the signals output from pressure transducers provided for each filter.
摘要翻译： 用于测量从诸如柴油发动机的车辆内燃机排出的颗粒的量的系统具有引入废气的稀释通道，与稀释空气混合并稀释。 稀释气体的一部分被引入到第一采样装置中，其中提供第一过滤器用于收集干烟灰的颗粒，另一部分稀释气体被引入第二采样装置，其中提供第二过滤器用于收集颗粒 的可溶性有机部分（SOF）。 根据从每个过滤器提供的压力传感器输出的信号的时间差，实时计算干烟尘和SOF的量，根据过滤器上的压降，实时计算。
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