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    • 21. 发明授权
    • Position detecting apparatus and abnormality detecting apparatus
    • 位置检测装置和异常检测装置
    • US06522097B2
    • 2003-02-18
    • US09985861
    • 2001-11-06
    • Chiaki FujimotoMasaki MatsushitaTakayuki Kifuku
    • Chiaki FujimotoMasaki MatsushitaTakayuki Kifuku
    • G05B1931
    • H02P6/16H02P29/02
    • A position detecting apparatus includes: a position sensor 10 that inputs an excitation signal having a given period waveform and outputs a first amplitude modified signal induced in accordance with a detected position from a first output winding and outputs a second amplitude modified signal induced in accordance with a detected position from a second output winding; a first phase shifting circuit 23 for electrically shifting a phase of the first amplitude modified signal by a given angle; a second phase shifting circuit 24 for electrically shifting a phase of the second amplitude modified signal by a given angle; converting means 15,16 for converting the signal outputted from the first phase shifting circuit 23 and the signal outputted from the second phase shifting circuit 24 into a phase modulated signal; and calculating means 17-22 for obtaining a detected position on the basis of the phase of the phase modulated signal outputted from the converting means 15,16.
    • 位置检测装置包括:位置传感器10,其输入具有给定周期波形的激励信号,并输出根据来自第一输出绕组的检测位置感应的第一幅度修正信号,并输出根据 来自第二输出绕组的检测位置; 第一移相电路23,用于将第一幅度修正信号的相位电移位给定的角度; 第二移相电路24,用于将第二幅度修正信号的相位电移位给定角度; 用于将从第一移相电路23输出的信号和从第二移相电路24输出的信号转换为相位调制信号的转换装置15,16; 以及计算装置17-22,用于根据从转换装置15,16输出的相位调制信号的相位获得检测位置。
    • 22. 发明授权
    • Electric power steering control system and control method thereof
    • 电动助力转向控制系统及其控制方法
    • US06427105B1
    • 2002-07-30
    • US10043226
    • 2002-01-14
    • Masaki Matsushita
    • Masaki Matsushita
    • G05E700
    • B62D5/0463B62D5/046H02P6/085
    • An electric power steering control system in which by using a brushless motor as a motor for generating steering assist force, less trouble occurs, and an error in torque control and transient vibration are small even when a steering wheel is turned sharply. The electric power steering control system is arranged so as to control a drive current of a brushless motor that generates a steering assist force on the basis of steering torque acting on a steering shaft and a vehicle speed. The system comprises a d-q axis voltage command section for computing a d- and q-axis voltage command value in response to a deviation of current between a d- and q-axis current command value and a d- and q-axis detection current value, a d-q coordinate inverse transformation section for performing the d-q coordinate inverse transformation on the basis of the d- and q-axis voltage command value and an electrical angle signal eventually thereby computing a three-phase voltage command value, and a PWM output section for generating a PWM waveform for PWM drive of the brushless motor in response to the three-phase voltage command compensation value.
    • 一种电动助力转向控制系统,其中通过使用无刷电动机作为用于产生转向辅助力的电动机,发生较少的故障,并且即使当方向盘急剧转动时,转矩控制和瞬态振动的误差也很小。电动助力转向 控制系统被布置成基于作用在转向轴上的转向扭矩和车速来控制产生转向辅助力的无刷电动机的驱动电流。 该系统包括dq轴电压指令部分,用于响应于d轴和q轴电流指令值与d轴和q轴检测电流值之间的电流偏差来计算d轴和q轴电压指令值 ,dq坐标逆变换部分,用于根据d轴和q轴电压指令值和电角度信号执行dq坐标逆变换,从而计算三相电压指令值;以及PWM输出部分,用于 响应于三相电压指令补偿值产生用于无刷电动机的PWM驱动的PWM波形。
    • 26. 发明授权
    • Power supply control device and method, program, and recording/playback apparatus
    • 电源控制装置及方法,程序和记录/重放装置
    • US07676670B2
    • 2010-03-09
    • US11469707
    • 2006-09-01
    • Masaki MatsushitaYoshio Nakamura
    • Masaki MatsushitaYoshio Nakamura
    • G06F9/445G06F1/24
    • G06F1/26
    • A power supply control device includes a first signal output unit that outputs a re-power signal and an off-ready signal, the re-power signal being a signal for turning off the power supply of an apparatus for a predetermined period of time and then turning on the power supply of the apparatus, the off-ready signal indicating that the power supply of the apparatus is ready to be turned off; a second signal output unit that outputs a power-off enable signal for turning off the power supply of the apparatus to a power supply unit when the re-power signal and the off-ready signal are supplied to the second signal output unit; and a holding unit that holds the power-off enable signal for the predetermined period of time.
    • 电源控制装置包括:第一信号输出单元,其输出再功率信号和就绪不足的信号,所述再功率信号是用于在预定时间段内关闭装置的电源的信号,然后 打开设备的电源,指示设备的电源准备关闭的关闭就绪信号; 第二信号输出单元,当所述再供电信号和所述关闭就绪信号被提供给所述第二信号输出单元时,输出用于将所述设备的电源关闭到电源单元的断电使能信号; 以及在所述预定时间段内保持所述断电使能信号的保持单元。
    • 27. 发明授权
    • Electric power steering control apparatus
    • 电动助力转向控制装置
    • US07624838B2
    • 2009-12-01
    • US11493598
    • 2006-07-27
    • Takayuki KifukuMasaki MatsushitaHiroyuki Kozuki
    • Takayuki KifukuMasaki MatsushitaHiroyuki Kozuki
    • B62D5/04
    • B62D5/049B62D5/0463B62D5/0484
    • An electric power steering control apparatus can limit a motor impression voltage thereby to maintain an appropriate motor output even upon occurrence of a failure of a motor current detection circuit or a motor current feedback control system. The apparatus includes a motor that generates an assist force to the steering system, an input processing section that takes in a steering torque signal from a torque sensor, an output processing section that drives the motor, and a processing unit that provides an instruction to the output processing section based on the steering torque signal. The processing unit includes an impression voltage calculation section that calculates an amount of operation to the motor in accordance with the steering torque signal, and an impression voltage limiting section that limits the impression voltage to predetermined limit values or less corresponding to the direction of the steering torque signal.
    • 电动动力转向控制装置可以限制电动机压印电压,从而即使在发生电动机电流检测电路或电动机电流反馈控制系统的故障时也能保持适当的电动机输出。 该装置包括向转向系统产生辅助力的电动机,从转矩传感器接收转向转矩信号的输入处理部,驱动电动机的输出处理部,以及向该转向系统提供指令的处理部 输出处理部。 处理单元包括压印电压计算部,其根据转向转矩信号计算对电动机的操作量,以及压印电压限制部,其将压印电压限制在与转向方向对应的规定极限值以下 转矩信号。
    • 30. 发明申请
    • Electromotive power steering controller
    • 电动助力转向控制器
    • US20060076832A1
    • 2006-04-13
    • US11211577
    • 2005-08-26
    • Masaki MatsushitaTakayuki KifukuHiroyuki Kozuki
    • Masaki MatsushitaTakayuki KifukuHiroyuki Kozuki
    • B60L1/00
    • B62D5/0487H02P21/22
    • An objective is to provide a specific realization means for easily determining malfunction of a system in an electromotive power steering controller. The electromotive power steering controller includes: a voltage controller for controlling voltage applying to a motor based on a d-axis current command value and a q-axis current command value that are set by a d-q-command-value setting unit, and a d-axis current detection value and a q-axis current detection value that are obtained by, using the d-q coordinate system, transforming three-phase ac current that has been actually flowing in the motor and has been detected by a current detector; and a malfunction determining unit for determining that malfunction has occurred in the control system if at least one of the phase-current detection value is out of a first predetermined permissible range.
    • 目的是提供一种用于容易地确定电动助力转向控制器中的系统的故障的具体实现装置。 电动动力转向控制器包括:电压控制器,用于基于由dq指令值设定单元设定的d轴电流指令值和q轴电流指令值,控制施加于电动机的电压,d 通过使用dq坐标系获得的电流检测值和q轴电流检测值,其变换已经在电动机中实际流动并且由电流检测器检测到的三相交流电流; 以及故障确定单元,用于如果所述相电流检测值中的至少一个超出第一预定容许范围,则确定在所述控制系统中已发生故障。