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    • 1. 发明申请
    • ELECTRIC POWER STEERING CONTROL SYSTEM
    • 电力转向控制系统
    • US20100235047A1
    • 2010-09-16
    • US12160438
    • 2007-03-12
    • Masahiko KurishigeTakayuki KifukuSeiji SakanishiMasaharu TanakaSeiji SawadaAkinobu SugiyamaHanako Hamada
    • Masahiko KurishigeTakayuki KifukuSeiji SakanishiMasaharu TanakaSeiji SawadaAkinobu SugiyamaHanako Hamada
    • G06F19/00H02P6/10
    • B62D5/0463B62D5/0472
    • Intended is to solve the problem of an increase in the cost of an electric power steering control system, the oscillations of which are suppressed by estimating and feeding back the oscillation frequency components of a motor rotating speed through an observer from a steering torque signal and a current signal for driving a motor, no matter whether a phase compensator might be made of an analog circuit or a software. In order to solve this problem, there is provided the electric power steering control system, in which the phase compensator of the steering torque is made of an analog circuit and in which an anti-phase compensator is made over the software of a microcomputer, thereby to eliminate the changes in the gain and the phase by the phase compensator of the analog circuit near the oscillation frequency, so that the steering torque signal equivalent to that of no phase compensation necessary for the computation at the observer is computed from the phase-compensated steering torque signal.
    • 本发明是为了解决电动助力转向控制系统的成本增加的问题,其通过从转向转矩信号估计并反馈观察者的电动机转速的振荡频率分量来抑制振荡, 用于驱动电机的电流信号,无论相位补偿器是由模拟电路还是软件构成。 为了解决这个问题,提供了一种电动助力转向控制系统,其中转向转矩的相位补偿器由模拟电路构成,并且在微型计算机的软件上形成反相补偿器,由此 以消除靠近振荡频率的模拟电路的相位补偿器的增益和相位的变化,从而从相位补偿计算出在观测器处计算所需的与无相位补偿相等的转向转矩信号 转向转矩信号。
    • 4. 发明授权
    • Motor abnormality detecting apparatus
    • 马达异常检测装置
    • US06831477B2
    • 2004-12-14
    • US10378659
    • 2003-03-05
    • Kouji FukusumiMasahiko KurishigeNoriyuki InoueSeiji SakanishiKenichi KawakamiTakayuki Kifuku
    • Kouji FukusumiMasahiko KurishigeNoriyuki InoueSeiji SakanishiKenichi KawakamiTakayuki Kifuku
    • G01R3134
    • G01R31/006G01R31/343
    • An identification is made of an abnormal condition in a motor due to an influence of a disturbance voltage, without addition of hardware, by estimating the disturbance voltage based on a target voltage and actual current flowing in the motor. An apparatus for detecting the abnormal condition of a motor in an electric power steering apparatus includes a motor current detecting unit for detecting an actual current flowing through the motor; a feedback controlling unit for feedback-controlling a target voltage value that gives the motor a driving command in accordance with the deviation of the actual current from an input target current; an abnormal voltage estimating unit for, based on the target voltage and the actual current, estimating an abnormal voltage estimation value corresponding to a voltage indicating an abnormal condition of the motor; and a motor abnormality judging unit for judging abnormality of the motor based on a comparison of the abnormal voltage estimation value with an abnormal voltage value previously stored.
    • 通过基于在电动机中流动的目标电压和实际电流来估计干扰电压,由于干扰电压的影响而不添加硬件,来识别电动机的异常状况。 一种用于检测电动转向装置中的电动机的异常状况的装置,包括用于检测流过电动机的实际电流的电动机电流检测单元; 反馈控制单元,用于根据实际电流与输入目标电流的偏差反馈控制给予电动机的驱动指令的目标电压值; 异常电压估计单元,用于基于目标电压和实际电流,估计与指示电动机的异常状态的电压相对应的异常电压估计值; 以及电动机异常判定单元,用于基于异常电压估计值与预先存储的异常电压值的比较来判断电动机的异常。
    • 9. 发明授权
    • Electric power steering control device
    • 电动助力转向控制装置
    • US08626394B2
    • 2014-01-07
    • US13497103
    • 2010-10-21
    • Isao KezoboMasahiko KurishigeMasaya EndoTakayuki Kifuku
    • Isao KezoboMasahiko KurishigeMasaya EndoTakayuki Kifuku
    • B62D5/08
    • B62D5/0472
    • An electric power steering control device includes: a vibration extracting filter for performing filter processing on a rotation speed of a motor to reduce a gain on a low frequency side so as to output a vibration-component signal; a current variable gain map for detecting a current flowing through the motor as a first state quantity so as to calculate a current variable gain based on the current; a rotation-speed variable gain map for detecting the rotation speed of the motor as a second state quantity so as to calculate a rotation-speed variable gain based on the rotation speed; a correction mechanism calculating a vibration suppression current; and current controller calculating a target current so as to control the current flowing through the motor.
    • 一种电动助力转向控制装置,包括:振动提取过滤器,用于对电动机的转速进行滤波处理,以降低低频侧的增益,从而输出振动分量信号; 电流可变增益图,用于检测流过电动机的电流作为第一状态量,以便基于电流计算电流可变增益; 旋转速度可变增益图,用于检测作为第二状态量的电动机的转速,以便根据转速计算转速可变增益; 计算振动抑制电流的校正机构; 电流控制器计算目标电流,以控制流过马达的电流。