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    • 4. 发明授权
    • Electric power steering apparatus
    • 电动助力转向装置
    • US07188702B2
    • 2007-03-13
    • US10439606
    • 2003-05-16
    • Masanori TakagiTakashi KuribayashiAtsuhiko Yoneda
    • Masanori TakagiTakashi KuribayashiAtsuhiko Yoneda
    • B62D5/04
    • B62D5/0463B62D5/046H02P21/22
    • An electric power steering apparatus is provided, which has a first device for detection of steering torque, a motor, a motor drive unit, a second device for determining a target current based upon at least a signal of steering torque, a third device for detection of a motor current, and a control unit for generating a signal for motor drive based upon at least a deviation between the target current and motor current and transmitting the signal for motor drive to the motor drive unit. The apparatus has a feature that the control unit includes a fourth device for weakening a magnetic field within the motor according to the deviation or a value computed based upon the deviation.
    • 本发明提供一种电动助力转向装置,其具有用于检测转向转矩的第一装置,电动机,电动机驱动单元,至少基于转向转矩的信号确定目标电流的第二装置,第三检测装置 以及控制单元,用于基于至少目标电流和电动机电流之间的偏差产生用于电动机驱动的信号,并将用于电动机驱动的信号传送到电动机驱动单元。 该装置的特征在于,控制单元包括用于根据偏差或基于偏差计算的值来削弱电动机内的磁场的第四装置。
    • 7. 发明授权
    • Driving force distribution device for vehicle
    • 车辆驱动力分配装置
    • US06543595B2
    • 2003-04-08
    • US09818974
    • 2001-03-27
    • Shinji OkumaRyuji AsadaAkihiro IwazakiTakashi KuribayashiTatsuhiro TomariMasakatsu HoriKazuhiro WadaKiyoshi Wakamatsu
    • Shinji OkumaRyuji AsadaAkihiro IwazakiTakashi KuribayashiTatsuhiro TomariMasakatsu HoriKazuhiro WadaKiyoshi Wakamatsu
    • F16D1900
    • F16D27/14B60K23/04F16H48/30
    • A driving force distribution device which controls the engagement forces of electromagnetic clutches and which govern the torque distribution between the driving wheels of a vehicle by calculating a target magnetic flux density and converting the same into a target excitation current. Since the relationship between the target magnetic flux density and the target excitation current changes according to a decrease in the air gaps accompanying wear of the frictional engagement members of the electromagnetic clutches, a relationship between the magnetic flux density and the excitation current is determined by applying current to the electromagnetic clutches when torque distribution control is not being carried out such as when the system is started, and the target excitation current is calculated from the target magnetic flux density based on the determined relationship. Since there is no need to detect dynamic changes in the magnetic flux density, inexpensive devices can be used as magnetic flux density detecting means so contributing to a reduction in the cost.
    • 一种驱动力分配装置,其通过计算目标磁通密度并将其转换为目标励磁电流来控制电磁离合器的接合力并且控制车辆的驱动轮之间的转矩分布。 由于目标磁通密度和目标激励电流之间的关系随着伴随电磁离合器的摩擦接合构件的磨损的气隙的减小而变化,所以磁通密度和激励电流之间的关系通过应用 基于所确定的关系,根据目标磁通密度计算当系统启动时不进行转矩分配控制时的电磁离合器的电流。 由于不需要检测磁通密度的动态变化,所以可以使用便宜的装置作为磁通密度检测装置,从而有助于降低成本。
    • 10. 发明授权
    • Co-operative control system for a vehicle
    • 车辆合作控制系统
    • US06295496B1
    • 2001-09-25
    • US09654272
    • 2000-09-01
    • Tomoyuki ShinmuraHiromi InagakiMasakatsu HoriTatsuhiro TomariShinji OkumaAkihiro IwazakiTakashi KuribayashiKazuhiro Wada
    • Tomoyuki ShinmuraHiromi InagakiMasakatsu HoriTatsuhiro TomariShinji OkumaAkihiro IwazakiTakashi KuribayashiKazuhiro Wada
    • G06F1520
    • B62D5/0484B62D5/0472B62D9/002F16H48/10
    • A co-operative control system for a vehicle having a force distribution device for distributing at least one of a driving force and a braking force between spaced apart wheels, the co-operative system having: a first control mechanism for controlling the operation of the force distribution device, an electric power steering device having a motor for applying a steering assist torque to a steering system of the vehicle, and a second control mechanism for calculating a motor control signal for driving the motor based on at least a steering torque detected by a steering torque sensor, and for inhibiting drive of the motor based on at least an actual motor detected by a current sensor and the steering torque. The first control mechanism calculates a correction signal for correcting the motor control signal based on the amount of control of the force distribution device and an offset current for correcting the actual motor current signal; and the second control mechanism drives the motor based on a corrected motor control signal obtained by correcting the motor control signal with the correction signal and inhibits the drive of the motor based on a value obtained by correcting the actual motor current signal with the offset current and the steering torque signal, the offset current being set smaller than the correction signal.
    • 一种用于车辆的合作控制系统,具有用于在间隔开的车轮之间分配驱动力和制动力中的至少一个的力分配装置,所述协作系统具有:用于控制力的操作的第一控制机构 分配装置,具有用于向车辆的转向系统施加转向辅助转矩的电动机的电动助力转向装置,以及至少基于由所述车辆的转向检测到的转向转矩来计算用于驱动所述电动机的电动机控制信号的第二控制机构 转向扭矩传感器,并且用于基于至少由电流传感器检测到的实际电动机和转向转矩来禁止电动机的驱动。 第一控制机构基于力分配装置的控制量和用于校正实际电动机电流信号的偏移电流来计算用于校正电动机控制信号的校正信号; 并且第二控制机构基于通过利用校正信号校正电动机控制信号而获得的校正电动机控制信号来驱动电动机,并且基于通过利用偏移电流校正实际电动机电流信号而获得的值来禁止电动机的驱动,以及 转向转矩信号,偏移电流被设定为小于校正信号。