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公开(公告)号：US20110118940A1
公开(公告)日：2011-05-19
申请号：US12946187
申请日：2010-11-15
CPC分类号： H02P21/0046 , B62D5/046 , H02P21/04 , H02P21/28
摘要： A motor is driven by the γ-axis current of a γδ coordinate system that is an imaginary rotating coordinate system. A command current value preparation unit sets the γ-axis command current value based on the command steering torque and the detected steering torque. The command current value preparation unit includes a command current increase/decrease amount calculation unit and an addition unit. The command current increase/decrease amount calculation unit calculates the current increase/decrease amount for the command current value based on the sign of the command steering torque and the deviation of the detected steering torque from the command steering torque. The current increase/decrease amount calculated by the command current increase/decrease amount calculation unit is added to the immediately preceding value of the command current value by the addition unit. Thus, the command current value in the present calculation cycle is calculated.
摘要翻译： 电动机由作为虚拟旋转坐标系的γδ坐标系的γ轴电流驱动。 指令电流值准备部基于指示转向转矩和检测到的转向转矩来设定γ轴指令电流值。 指令电流值准备单元包括指令电流增减量计算单元和加法单元。 指令电流增减量计算单元基于指示转向转矩的符号和检测到的转向转矩与指示转向转矩的偏差来计算指令电流值的当前增减量。 由指令电流上升/下降量计算单元计算出的当前增加/减少量通过加法单元加到指令当前值的紧前面的值。 因此，计算当前计算周期中的指令当前值。
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2.发明申请MOTOR CONTROL UNIT AND MOTOR CONTROL UNIT FOR VEHICLE STEERING APPARATUS 审中-公开用于车辆转向装置的电动机控制单元和电机控制单元公开(公告)号：US20100235051A1
公开(公告)日：2010-09-16
申请号：US12721855
申请日：2010-03-11
摘要： A motor control unit controls a motor including a rotor and a stator facing the rotor. A current drive unit drives the motor at an axis current value of a rotating coordinate system that rotates in accordance with a control angle that is a rotational angle used in a control. An addition angle calculation unit calculates an addition angle to be added to the control angle. A control angle calculation unit obtains, at every predetermined calculation cycle, a present value of the control angle by adding the addition angle that is calculated by the addition angle calculation unit to an immediately preceding value of the control angle. A torque detection unit detects a torque that is other than a motor torque and that is applied to a drive target driven by the motor. A command torque setting unit sets a command torque to be applied to the drive target. An addition angle correction unit compares the command torque set by the command torque setting unit with the detected torque detected by the torque detection unit, and corrects the addition angle based on a comparison result.
摘要翻译： 马达控制单元控制包括转子和面向转子的定子的马达。 当前的驱动单元以旋转坐标系的轴电流值驱动电机，该旋转坐标系根据在控制中使用的旋转角度的控制角度旋转。 相加角计算单元计算要添加到控制角度的相加角度。 控制角计算单元通过将由相加角计算单元计算出的相加角相加到控制角度的先前值，在每个预定计算周期获得控制角的当前值。 转矩检测单元检测除了电动机转矩之外并且施加到由电动机驱动的驱动目标的转矩。 指令转矩设定单元设定要施加到驱动目标的指令转矩。 相加角校正单元将由指令转矩设定单元设定的指令转矩与由转矩检测单元检测出的检测转矩进行比较，并且基于比较结果校正相加角。
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公开(公告)号：US20120046832A1
公开(公告)日：2012-02-23
申请号：US13205138
申请日：2011-08-08
IPC分类号： B62D6/00
CPC分类号： B62D5/046 , B62D5/0463
摘要： A current increase-decrease amount (ΔIγ*) computed by a command current increase-decrease amount computing unit is added to an immediately preceding value (Iγ*(n−1)) of a command current value (Iγ*) in an adder. The command current value (Iγ*) obtained by the adder is given to a high/low limit limiter. The high/low limit limiter limits the command current value (Iγ*), obtained by the adder, to a value between a low limit value (ξmin (ξmin≧0)) and a high limit value (ξmax (ξmax>ξmin)). A high limit value setting unit obtains the high limit value (ξmax) corresponding to the vehicle speed detected by the vehicle speed sensor, from a vehicle speed-vs.-high limit value map set by a map creating/updating unit, and sets the obtained high limit value (ξmax) in the high/low limit limiter.
摘要翻译： 由指令电流增加减少量运算部计算出的电流增减量（＆Dgr;Iγ*）被加到指令电流值（Iγ*）的前一个值（Iγ*（n-1）） 加法器。 通过加法器获得的指令电流值（Iγ*）被赋予高/低限制限制器。 高/低限制限制器将由加法器获得的指令电流值（Iγ*）限制在下限值（＆xgr; min（＆xgr;min≥0））和上限值（＆xgr; max （＆xgr; max>＆xgr; min））。 上限值设定单元根据由地图生成/更新单元设定的车速与上限值映射得出与车速传感器检测出的车速对应的上限值（＆xgr; max），以及 将所获得的上限值（＆xgr; max）设置在高/低限制限制器中。
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公开(公告)号：US20110112724A1
公开(公告)日：2011-05-12
申请号：US12945101
申请日：2010-11-12
CPC分类号： B62D5/046 , B62D5/0463 , Y10S901/42
摘要： A motor control unit includes a detected steering torque correction unit that corrects the detected steering torque that is detected by a torque sensor and then subjected to a limitation process by a steering torque limiter. When the absolute value of the detected steering torque is equal to or smaller than a predetermined value, the detected steering torque correction unit corrects the detected steering torque to 0. When the absolute value of the detected steering torque is larger than the predetermined value, the detected steering torque correction unit outputs the detected steering torque without correction. A PI control unit calculates the addition angle based on the deviation of the control torque obtained through correction by the detected steering torque correction unit from the command steering torque.
摘要翻译： 马达控制单元包括检测到的转向扭矩校正单元，该单元校正由转矩传感器检测到的检测到的转向转矩，然后通过转向扭矩限制器进行限制处理。 当检测到的转向转矩的绝对值为规定值以下时，检测到的转向转矩修正部将检测的转向转矩修正为0.当检测转向转矩的绝对值大于规定值时， 检测到的转向转矩校正单元输出检测的转向转矩而不进行校正。 PI控制单元基于通过检测转向转矩校正单元通过指令转向转矩校正获得的控制扭矩的偏差来计算相加角度。
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公开(公告)号：US20130049652A1
公开(公告)日：2013-02-28
申请号：US13570857
申请日：2012-08-09
IPC分类号： H02P21/14
CPC分类号： H02P6/00
摘要： A F/B gain control unit computes a first change component by executing torque feedback control based on a torque deviation using a feedback gain that is computed by a F/B gain variable control unit. The F/B gain variable control unit computes one of two different feedback gains that correspond to a “first computation mode” in which the first change component is used as an addition angle and a “second computation mode” in which a value obtained by correcting the first change component by an estimated motor rotation angular velocity is used as the addition angle, respectively. A feedback gain used in the first computation mode is set such that a response at the feedback gain is higher than that at a feedback gain used in the second computation mode.
摘要翻译： F / B增益控制单元通过使用由F / B增益变量控制单元计算的反馈增益，基于转矩偏差执行转矩反馈控制来计算第一变化分量。 F / B增益可变控制单元计算与第一计算模式相对应的两个不同的反馈增益中的一个，其中第一变化分量用作相加角，以及第二计算模式，其中通过校正第一变化分量 通过估计的电机旋转角速度分别用作相加角。 设置在第一计算模式中使用的反馈增益，使得反馈增益的响应高于在第二计算模式中使用的反馈增益时的响应。
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公开(公告)号：US20080315809A1
公开(公告)日：2008-12-25
申请号：US12142376
申请日：2008-06-19
申请人： Terutaka TAMAIZUMI
发明人： Terutaka TAMAIZUMI
IPC分类号： H02P6/10
CPC分类号： B62D5/046 , B62D5/0484 , B62D5/0487 , H02P21/22 , H02P29/032
摘要： The micro computer 17 continue an output of a motor control signal to execute a current control to carry to each of two phases a phase current changing like a secant curve or a cosecant curve at making a predetermined rotational angle according to the phase generated the current-carrying failure as an asymptote at the generation of the current-carrying failure. The micro computer 17 provides a rotational angle compensating section 40 compensating an input rotational angle θ to correct a phase offset between a phase current command value Ix* as a current command value and an actual phase current value Ix as an actual current value in the current control.
摘要翻译： 微型计算机17继续输出电动机控制信号，执行电流控制，以根据产生电流控制信号的相位执行电流控制，以使两相中的相位电流根据正交曲线或辅助曲线变化， 在发生电流故障时承载故障作为渐近线。 微型计算机17提供一个旋转角度补偿部分40，补偿输入旋转角度θ，以将作为电流指令值的相电流指令值Ix *与实际相电流值Ix之间的相位偏移校正为电流中的实际电流值 控制。
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公开(公告)号：US20090132126A1
公开(公告)日：2009-05-21
申请号：US12273881
申请日：2008-11-19
申请人： Terutaka TAMAIZUMI
发明人： Terutaka TAMAIZUMI
CPC分类号： B62D5/0487 , B62D5/0484
摘要： When an electrification failure occurs in any of the phase of a motor, a control device of an electric power steering device executes current control for generating, in each of two electrification phases other than a phase with the electrification failure, a phase current that changes in the form of a secant curve or a cosecant curve based on an asymptotic line, which is a predetermined rotational angle corresponding to the phase with the electrification failure, to thereby continuously output a motor control signal. The control device of the electric power steering device executes current restriction for restricting the phase current within a predetermined range. The control device of the electric power steering device further executes control for accelerating rotation of the motor during two phase drive, in order to prevent the occurrence of a stuck steering wheel during low-speed steering, which is caused as a result of the execution of the current restriction.
摘要翻译： 当在电动机的任何相中发生通电故障时，电动转向装置的控制装置执行电流控制，用于在具有带电故障的相位以外的两个充电阶段的每一个中产生相变电流 基于渐近线的割线曲线或辅助曲线的形式，其为与带电故障的相位相对应的预定旋转角度，从而连续输出电动机控制信号。 电动助力转向装置的控制装置执行用于将相电流限制在预定范围内的电流限制。 电动助力转向装置的控制装置进一步执行用于在两相驱动期间加速电动机的旋转的控制，以便防止在低速转向期间发生由于执行 目前的限制。
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