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39 条记录 (耗时 0.03 秒)

    Positioning system utilizing GPS satellites
    3.
    发明授权
    Positioning system utilizing GPS satellites 失效
    GPS卫星定位系统

    公开(公告)号：US5931890A

    公开(公告)日：1999-08-03

    申请号：US808955

    申请日：1997-02-19

    申请人： Yoshihisa Suwa ,  Seiji Ishikawa ,  Tomohiro Yamamoto ,  Takeshi Ito ,  Tomio Yasuda

    发明人： Yoshihisa Suwa ,  Seiji Ishikawa ,  Tomohiro Yamamoto ,  Takeshi Ito ,  Tomio Yasuda

    IPC分类号： G01C21/00 ,  G01S1/00 ,  G01S19/22 ,  G01S19/28 ,  G01S19/49 ,  G06F165/00

    CPC分类号： G01S19/42 ,  G01S19/22 ,  G01S19/28

    摘要： A positioning system is disclosed in which a rate of change .DELTA..DELTA.f in a Doppler shift .DELTA.f of the radio wave transmitted from a GPS satellite is detected in order to determine whether or not an extraordinary radio wave as caused by a multi-path or the like is being received, and a GPS satellite from which an extraordinary radio wave is received is excluded from a group of GPS satellites which are utilized in a positioning calculation. A difference .DELTA.f between a signal frequency f0 transmitted from a GPS satellite and a signal frequency fR receiver is calculated, and a rate of change .DELTA..DELTA.f in the difference .DELTA.f is also calculated. The position of a receiver is calculated on the basis of information transmitted from a plurality of GPS satellites for which the rate of change .DELTA..DELTA.f is equal to or less than a first threshold value, or .DELTA..DELTA.f.ltoreq.30 Hz/s, and the azimuth of a traveling direction of the receiver is calculated on the basis of information transmitted from a plurality of GPS satellites for which the rate of change .DELTA..DELTA.f is equal to or less than a second smaller threshold value or .DELTA..DELTA.f.ltoreq.15 Hz/s.

    摘要翻译： 公开了一种定位系统，其中检测到从GPS卫星发射的无线电波的多普勒频移DELTA f中的变化率DELTA DELTA f，以便确定由多路径引起的非凡无线电波 正在接收，并且从定位计算中使用的一组GPS卫星中排除从其接收非正常无线电波的GPS卫星。 计算从GPS卫星发送的信号频率f0和信号频率fR接收机之间的差ΔTA，并且还计算差ΔTATA中的变化率DELTA DELTA f。 基于从变化率DELTA DELTA f等于或小于第一阈值或DELTA DELTA f 30Hz / s的多个GPS卫星发送的信息来计算接收机的位置 并且基于从其变化率DELTA DELTA f等于或小于第二较小阈值或DELTA DELTA f'的多个GPS卫星发送的信息来计算接收机的行进方向的方位角， / = 15Hz / s。

    Electric power steering equipment
    4.
    发明授权
    Electric power steering equipment 失效
    电动助力转向设备

    公开(公告)号：US4674588A

    公开(公告)日：1987-06-23

    申请号：US626203

    申请日：1984-06-29

    申请人： Tomio Yasuda ,  Akio Hashimoto

    发明人： Tomio Yasuda ,  Akio Hashimoto

    IPC分类号： B62D5/04 ,  B62D6/00 ,  B62D5/06

    CPC分类号： B62D5/0463 ,  B62D6/008

    摘要： Improved electric power steering equipment includes an electric motor as a driving device therefor wherein wetness detecting means is adapted to minimize reduction in the torque necessary for the steering operation to thereby improve the steering feeling of a driver. The wetness detecting means detects the degree of wetness of a vehicle or a road surface adjacent to the vehicle. The equipment according to the present invention also includes a control means for driving the electric motor in response to the steering torque detected by a torque detecting means and the degree of wetness detected by the wetness detecting means. Thus, wetness on a road is directly or indirectly detected by the wetness detecting means and based on the detecting results thereof, additional torque necessary for the steering operation is controlled, and therefore a driver can drive a vehicle with a relatively constant steering feeling at all times, regardless of various running states of the vehicle.

    摘要翻译： 改进的电动助力转向装置包括电动机作为其驱动装置，其中湿度检测装置适于使转向操作所需的扭矩的减小最小化，从而改善驾驶员的转向感。 湿度检测装置检测与车辆相邻的车辆或路面的湿度。 根据本发明的设备还包括用于响应于由转矩检测装置检测的转向转矩和由湿度检测装置检测到的湿度来驱动电动机的控制装置。 因此，通过湿度检测装置直接或间接地检测道路上的湿度，并且根据其检测结果，控制转向操作所需的附加扭矩，因此驾驶员可以根据相对恒定的转向感觉驾驶车辆 次，不管车辆的各种运行状态如何。

    Power transmission device of motor-driven power steering
    5.
    发明授权
    Power transmission device of motor-driven power steering 失效
    电动助力转向动力传动装置

    公开(公告)号：US4667759A

    公开(公告)日：1987-05-26

    申请号：US759001

    申请日：1985-07-25

    申请人： Akio Hashimoto ,  Tomio Yasuda

    发明人： Akio Hashimoto ,  Tomio Yasuda

    IPC分类号： B62D3/12 ,  B62D5/04 ,  F16H35/00

    CPC分类号： B62D5/0412

    摘要： A power transmission device of a motor-driven power steering system is provided which comprises a driving gear mounted on the outside of a shaft transmitting a force given from a steering wheel to a steering mechanism and rotatable about the shaft, a first connecting member including at least one gear for coupling the driving gear and a driving shaft of an electric motor, a second connecting member coupled to one out of the shaft and the driving gear, and a buffering member having elasticity coupled to the other out of the shaft and the driving gear and to the second connecting member.Preferably, the second connecting member has a cylindrical portion secured on the outside of the shaft and projections, and the driving gear has holes for receiving the buffering member and the projections.

    摘要翻译： 本发明提供一种电动动力转向系统的动力传递装置，该动力传动装置包括一个驱动齿轮，该驱动齿轮安装在一个轴的外侧，该轴传递从方向盘向转向机构提供的力并绕轴转动;第一连接构件， 用于联接驱动齿轮和电动机的驱动轴的至少一个齿轮，连接到轴中的一个和驱动齿轮的第二连接构件，以及具有弹性的另一个弹性联接到轴外的驱动 齿轮和第二连接构件。 优选地，第二连接构件具有固定在轴和突起的外侧上的圆柱形部分，并且驱动齿轮具有用于接收缓冲构件和突起的孔。

    Capacitive occupancy detector apparatus
    8.
    发明授权
    Capacitive occupancy detector apparatus 失效
    电容占用检测装置

    公开(公告)号：US4796013A

    公开(公告)日：1989-01-03

    申请号：US919272

    申请日：1986-10-15

    申请人： Tomio Yasuda ,  Jun Sato ,  Masao Ohashi

    发明人： Tomio Yasuda ,  Jun Sato ,  Masao Ohashi

    IPC分类号： G01V3/08 ,  G07B13/04 ,  H01H3/14 ,  G08B21/00 ,  G08B13/26

    CPC分类号： H03K17/955 ,  G01V3/088 ,  G07B13/04 ,  H01H3/141

    摘要： A capacitive occupancy detector apparatus includes a personnel containment device having first and second electrodes which will define an electric field therebetween which will be intercepted by a person present in the containment device. A detecting device is provided for detecting the capacitance formed between the first and second electrodes and a processor is provided for storing the capacitance at predetermined periods. The difference between the last capacitance detected and a capacitance previously stored is detected to determine the presence of a person when the difference indicates an increase of the capacitance exceeding a first predetermined threshold. A second threshold is set based upon the capacitance which determines the presence of a person so that the subsequent determination of the absence of a person is based upon detecting a decrease of the capacitance with respect to the second threshold.

    摘要翻译： 电容占用检测器装置包括具有第一和第二电极的人员容纳装置，其将限定其间将由存在于容纳装置中的人拦截的电场。 提供一种用于检测在第一和第二电极之间形成的电容的检测装置，并且提供处理器用于以预定的周期存储电容。 当差异指示电容的增加超过第一预定阈值时，检测检测到的最后电容和预先存储的电容之间的差异，以确定人的存在。 基于确定人的存在的电容设置第二阈值，使得随后的对人的不存在的确定是基于相对于第二阈值检测到电容的减小。

    Motor-driven power steering system having a stable output torque
    9.
    发明授权
    Motor-driven power steering system having a stable output torque 失效
    具有稳定输出转矩的电动机动力转向系统

    公开(公告)号：US4614248A

    公开(公告)日：1986-09-30

    申请号：US638668

    申请日：1984-08-08

    申请人： Toshiaki Kakinami ,  Tomio Yasuda

    发明人： Toshiaki Kakinami ,  Tomio Yasuda

    IPC分类号： B62D5/04 ,  B62D6/00 ,  G05D17/02

    CPC分类号： B62D5/0463

    摘要： An electric motor driven power steering system is provided. The motor is prevented from operating at low torque command levels. After a first predetermined level of command torque is reached, the motor is controlled to generate torque at a predetermined rate less than the torque actually commanded by the vehicle driver. After a second predetermined level of commanded torque is reached, the motor is controlled to generate torque in accordance with the level of torque command. Thus, the phenomenon known as "hunting" and instability of the system at low torque levels are virtually eliminated. The system operates smoothly over its full range of operation and is not affected by rough road surface conditions.

    摘要翻译： 提供了一种电动机驱动的动力转向系统。 防止电机在低扭矩指令级别下运行。 在达到第一预定水平的指令扭矩之后，马达被控制以以比车辆驾驶员实际命令的转矩小的预定速度产生转矩。 在达到第二预定水平的指令转矩之后，控制电动机以根据转矩指令的水平产生转矩。 因此，实际上消除了以低扭矩水平被称为“狩猎”和系统的不稳定性的现象。 系统运行平稳，不受路面粗糙的影响。