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    • 41. 发明公开
    • ELECTRIC POWER STEERING SYSTEM
    • 电动转向系统
    • EP2614007A1
    • 2013-07-17
    • EP11776521.4
    • 2011-09-06
    • JTEKT Corporation
    • SUZUKI, Hiroshi
    • B65D5/04H02P29/02
    • B62D5/0484B62D5/0403B62D5/0463B62D5/0478B62D5/0487H02P21/0021H02P21/06H02P29/025H02P29/032
    • In an electric power steering system, a control signal output section outputs independent dual-system control signals to driver circuits that are disposed in connection with independent dual-system motor coils. The control signal output section gives high priority to the output of the control signal to the other system, when the occurrence of energization failure is detected in one system. When the energization failure occurring phase is only one phase and the value of the basic command (Iq *) exceeds the upper limit (Iq _max / 2) of the priority command (Iq *_x), the control signal output section outputs the control signal to the driver circuit in the system where the energization failure has occurred in order to supply electric power in which the two phases other than the energization failure occurring phase are used as the energized phases on the bases of the complementary command (Iq *_y) that corresponds to the excess of the upper limit.
    • 在电动助力转向系统中,控制信号输出部将独立的双系统控制信号输出到与独立双系统电动机线圈连接设置的驱动器电路。 当在一个系统中检测到发生通电故障时,控制信号输出部分给予对另一个系统的控制信号的输出的高优先级。 当通电故障发生阶段仅为一个阶段并且基本命令(Iq *)的值超过优先命令(Iq * _x)的上限(Iq_max / 2)时,控制信号输出部分输出控制信号 向发生通电不良的系统中的驱动器电路供电,以便根据补充命令(Iq * _y)将除通电故障发生阶段以外的两相用作通电相位的电源 对应于超出的上限。
    • 44. 发明公开
    • ELECTRIC POWER STEERING APPARATUS
    • 电动转向装置
    • EP2518890A1
    • 2012-10-31
    • EP09852604.9
    • 2009-12-25
    • Toyota Jidosha Kabushiki Kaisha
    • YANAI Kohei
    • H02P6/16B62D5/04B62D6/00B62D101/00B62D113/00B62D119/00
    • B62D5/046B62D5/0484B62D5/049
    • An electrical angle estimation section 110 calculates an estimative electrical angle θeb' on the basis of an inductive voltage e generated in a motor 20, and obtains an estimative electrical angle θeb by correcting the estimative electrical angle θeb' by an electrical angle correction amount Δθc. On the basis of a detection value eγ/e which represents the difference in electrical angle between the q-axis and the δ-axis calculated by an electrical-angle-error detection section 117, an electrical-angle-correction-amount computation section 118 calculates an electrical angle correction amount Δθc such that the electrical angle of the δ-axis falls within a prescribed angular range A, which lags behind the q-axis in terms of electrical angle. Thus, when sensorless control is performed, a phenomenon in which the motor 20 loses synchronism can be restrained.
    • 电角度估计部110基于在电动机20中产生的感应电压e来计算估计电角度θeb',并且通过将估计电角度θeb'校正电角度校正量Δθc来获得估计电角度θeb'。 基于表示由电角度误差检测部分117计算出的q轴与δ轴之间的电角度差的检测值eγ/ e,电角度校正量计算部分118 计算电角度修正量Δθc,使得δ轴的电角度落入在电角度方面滞后于q轴的规定角度范围A内。 因此,当执行无传感器控制时,可以抑制马达20失去同步的现象。
    • 50. 发明公开
    • Electric power steering controller and electric power steering system
    • Servoenksystem和Steversystemfürelektrische Servolenkung und elektrisches Servolenksystem
    • EP2364897A2
    • 2011-09-14
    • EP11155812.8
    • 2011-02-24
    • Hitachi Automotive Systems, Ltd.
    • Kanekawa, NobuyasuKobayashi, RyoichiKoseki, Tomonobu
    • B62D5/04
    • B62D5/049B62D5/0484
    • The present invention provides an electric power steering controller and an electric power steering system that allow appropriate operation even when the operation of their torque sensors is abnormal.
      The controller 100 of a main microcomputer 1-1 outputs motor drive signals 3 to a drive circuit 5 based on first and second torque signals detected by a torque sensor 2 that detects steering force. The drive circuit 5 drives a motor 6 to generate assistive torque. A torque sensor abnormality detector 101 is installed within the main microcomputer 1-1 and detects abnormalities of the torque sensor 2 based on the first and second torque signals. An excessive torque detector 102 is installed within an external device 1-2 and outputs a motor stop signal when either of the first and second torque signals exceeds a given value.
    • 本发明提供了一种电动助力转向控制器和电动助力转向系统,即使在其扭矩传感器的操作异常时也允许适当的操作。 主微型计算机1-1的控制器100基于检测转向力的转矩传感器2检测到的第一和第二转矩信号将电动机驱动信号3输出到驱动电路5。 驱动电路5驱动马达6产生辅助转矩。 转矩传感器异常检测器101安装在主微型计算机1-1内,并基于第一和第二转矩信号检测转矩传感器2的异常。 过大的转矩检测器102安装在外部装置1-2内,并且当第一和第二扭矩信号中的任何一个超过给定值时,输出电动机停止信号。