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    • 4. 发明公开
    • Rotation angle detection device
    • 旋转角度检测装置
    • EP2743646A1
    • 2014-06-18
    • EP13196424.9
    • 2013-12-10
    • JTEKT Corporation
    • Takaki, TakeshiKariatsumari, YujiShimizu, Yoshinobu
    • G01D5/244
    • G01B7/30G01D5/244
    • In a rotation angle detection device, when a condition that two sensors among three magnetic sensors sense one and the same magnetic pole for three consecutive sampling periods is satisfied, a rotation angle is computed based on output signals from the two sensors, sampled at three sampling timings. When the output signals sampled at the three sampling timings satisfy a prescribed requirement, an angular width error correction value corresponding to the magnetic pole sensed by the two sensors and amplitudes are computed, and stored in association with the magnetic pole. If the condition is not satisfied, the rotation angle is computed based on the information stored in a memory and the output signals from two sensors among the three magnetic sensors, the two magnetic sensors including one of the three magnetic sensors, which detects the magnetic pole of which the angular width error correction value is stored in the memory.
    • 在旋转角度检测装置中,当满足三个磁传感器中的两个传感器在三个连续采样周期中感测一个且相同的磁极的条件时,基于来自两个传感器的输出信号来计算旋转角度, 时序。 当在三个采样定时处采样的输出信号满足规定要求时,计算与由两个传感器感测的磁极相对应的角宽度误差校正值和幅度,并且与磁极相关联地存储。 如果条件不满足,则基于存储在存储器中的信息以及来自三个磁传感器中的两个传感器的输出信号来计算旋转角度,两个磁传感器包括三个磁传感器中的一个,其检测磁极 其中角宽度误差校正值被存储在存储器中。
    • 6. 发明公开
    • Vehicle steering system
    • Fahrzeuglenkungssystem
    • EP2423074A2
    • 2012-02-29
    • EP11177780.1
    • 2011-08-17
    • JTEKT CORPORATION
    • Kariatsumari, YujiTamaizumi, TerutakaNamikawa, Isao
    • B62D5/04
    • B62D5/046B62D5/0463
    • A current increase-decrease amount (ΔI γ * ) computed by a command current increase-decrease amount computing unit (61) is added to an immediately preceding value (I γ * (n-1)) of a command current value (I γ * ) in an adder (62). The command current value (I γ * ) obtained by the adder (62) is given to a high/low limit limiter (63). The high/low limit limiter (63) limits the command current value (I γ * ), obtained by the adder (62), to a value between a low limit value (ξ min (ξ min ≥ 0)) and a high limit value (ξ max (ξ max > ξ min )). A high limit value setting unit (64) obtains the high limit value (ξ max ) corresponding to the vehicle speed detected by the vehicle speed sensor (6), from a vehicle speed-vs.-high limit value map set by a map creating/updating unit (39), and sets the obtained high limit value (ξ max ) in the high/low limit limiter (63).
    • 由指令电流增加 - 减少量计算单元(61)计算的当前增​​加减小量(“I 3 *”)被加到指令当前值(I)的紧接在前的值(I 3 *(n-1)) ³*)在加法器(62)中。 由加法器(62)获得的指令电流值(I 3 *)被赋予高/低限制限制器(63)。 高/低限制器(63)将由加法器(62)获得的指令电流值(I 3 *)限制在下限值(¾分钟(¾分钟‰))和高 极限值(¾max(¾max>¾min))。 上限值设定部(64)根据通过地图生成设定的车速 - 上限值映射求出与车速传感器(6)检测到的车速相对应的上限值(¾max) /更新单元(39),并且将获得的上限值(¾max)设置在高/低限制器(63)中。
    • 7. 发明公开
    • Motor control unit and vehicle steering system
    • Motorsteuereinheit und Fahrzeuglenksystem
    • EP2322408A2
    • 2011-05-18
    • EP10191142.8
    • 2010-11-15
    • JTEKT CORPORATION
    • Kariatsumari, YujiItatsu, YoshihiroShimizu, Yoshinobu
    • B62D5/04
    • B62D5/046B62D5/0496H02P29/64
    • When the estimated motor temperature becomes equal to or higher than the first predetermined temperature (A1), an addition angle correction unit (25) temporarily decreases the absolute value of the addition angle (a) output from an addition angle limiter (24) at time intervals (T int ). The addition angle confection unit (25) makes the time interval (T int ) shorter as the estimated motor temperature increases. When the time interval (T int ) becomes equal to or shorter than the predetermined threshold, that is, when the estimated motor temperature becomes equal to or higher than the second predetermined temperature (A2) that is higher than the first predetermined temperature (A1), the addition angle correction unit (25) notifies a command current value changing unit (31) of a current stop command. Thus, the γ-axis command current value (I γ *) is changed to 0, and therefore the steering mode is shifted to the manual steer mode.
    • 当估计的电动机温度等于或高于第一预定温度(A1)时,相加角校正单元(25)会在时间上暂时减小从相加角限制器(24)输出的相加角(a)的绝对值 间隔(T int)。 随着估计的电机温度升高,相加角度甜食单元(25)使得时间间隔(T int)更短。 当时间间隔(T int)变得等于或小于预定阈值时,即当估计的电动机温度变得等于或高于高于第一预定温度(A1)的第二预定温度(A2)时, 相加角度校正单元(25)通知当前停止命令的命令当前值改变单元(31)。 因此,³轴指令电流值(I³*)变为0,因此转向模式转移到手动转向模式。
    • 8. 发明公开
    • Motor control unit and vehicle steering apparatus
    • Motorsteuereinheit und Fahrzeuglenkvorrichtung
    • EP2273667A2
    • 2011-01-12
    • EP10168439.7
    • 2010-07-05
    • JTEKT CORPORATION
    • Kariatsumari, YujiKomatsu, Hayato
    • H02P21/00H02P21/04
    • 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. An angular speed calculation unit calculates an angular speed of the rotor. An addition angle correction unit corrects the addition angle based on the angular speed calculated by the angular speed calculation unit. A filtering unit filters the angular speed calculated by the angular speed calculation unit.
    • 马达控制单元控制包括转子和面向转子的定子的马达。 当前驱动单元以按照在控制中使用的旋转角度的控制角度旋转的旋转坐标系的轴电流值来驱动电动机。 相加角计算单元计算要添加到控制角度的相加角度。 控制角度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前一值,在每个预定计算周期获得控制角的当前值。 角速度计算单元计算转子的角速度。 相加角校正单元基于由角速度计算单元计算出的角速度校正相加角度。 滤波单元滤除由角速度计算单元计算的角速度。