POWER SUPPLY STATUS DIAGNOSTIC METHOD AND DEVICE
    52.
    发明公开
    POWER SUPPLY STATUS DIAGNOSTIC METHOD AND DEVICE 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR DIAGNOSE EINES STROMVERSORGUNGSSTATUS

    公开(公告)号:EP2476590A1

    公开(公告)日:2012-07-18

    申请号:EP11767151.1

    申请日:2011-09-06

    申请人: NSK Ltd.

    CPC分类号: B62D5/0481 B60R16/03

    摘要: [Problem]
    An object of the present invention is to provide a power state diagnosis method and a power state diagnosis apparatus that pass and increase not only a d-axis current but also a q-axis current to a current value that a steering behavior does not occur to perform a diagnosis in the vector control of a motor, and determine that a power supply degraded, that the power supply is normal and that the diagnosis is not completed without giving an uncomfortable feeling to a driver, detecting a timing that there is not a driver, and needing to comprise a plurality of actuators.
    [Means for solving the problem]
    The present invention is a power state diagnosis method that diagnoses a power state of a vehicle which comprises an electrical control system supplied from a power supply and a motor controlled by a vector control method, comprising: gradually increasing a d-axis current to a current value that a steering behavior does not occur and applying the d-axis current, concurrently gradually increasing a q-axis current that is a rectangular-wave with positive and negative directions to the current value and applying the q-axis current, and determining degradation of the power supply when a Voltage value of the power supply is equal to or less than a power supply threshold and a given period of time T1 elapses.

    摘要翻译: 发明内容本发明的目的是提供一种功率状态诊断方法和电力状态诊断装置,其不仅将d轴电流而且将q轴电流增加到转向行为的当前值 在电动机的矢量控制中不执行诊断,并且确定电源劣化,电源正常,并且诊断未完成,而不给驾驶员带来不适感,检测到有定时 不是驱动器,并且需要构成多个致动器。 解决问题的手段本发明是一种电力状态诊断方法,其对由电源供给的电气控制系统和由矢量控制方法控制的电动机构成的车辆的电力状态进行诊断,其特征在于,包括: d轴电流转换为不发生转向行为的电流值,并施加d轴电流,同时将正方向和正方向的矩形波的q轴电流逐渐增加到当前值,并施加q轴电流 并且当电源的电压值等于或小于电源阈值并且经过给定时间段T1时,确定电源的劣化。

    Diagnostic system and method for an electric power steering system
    54.
    发明公开
    Diagnostic system and method for an electric power steering system 审中-公开
    诊断系统非线性系统Servolenksystem

    公开(公告)号:EP2456067A2

    公开(公告)日:2012-05-23

    申请号:EP11009234.3

    申请日:2011-11-22

    IPC分类号: H02P29/02

    摘要: A diagnostic system and method for an electric power steering system are provided. The diagnostic system includes a first microprocessor that determines a first relative position value indicating the relative rotational position of the rotatable shaft at the first time based on the signals from first and second position sensors. A second microprocessor determines a second relative position value indicating the relative rotational position of the rotatable shaft at the first time based on the signals from third and fourth position sensors. The first microprocessor determines whether the first relative position value is an acceptable value based on a difference between the first relative position value and the second relative position value.

    摘要翻译: 提供了一种用于电动助力转向系统的诊断系统和方法。 诊断系统包括第一微处理器,其基于来自第一和第二位置传感器的信号,确定第一相对位置值,该第一相对位置值指示可旋转轴在第一时间的相对旋转位置。 第二微处理器基于来自第三和第四位置传感器的信号确定第一相对位置值,其指示第一时间处的可旋转轴的相对旋转位置。 第一微处理器基于第一相对位置值和第二相对位置值之间的差异来确定第一相对位置值是否为可接受值。

    MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING APPARATUS
    56.
    发明公开
    MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING APPARATUS 审中-公开
    EOTKTRISCHE SERVOLENKVORRICHTUNG摩托罗拉

    公开(公告)号:EP2448106A1

    公开(公告)日:2012-05-02

    申请号:EP10792063.9

    申请日:2010-06-21

    申请人: JTEKT Corporation

    IPC分类号: H02P6/18 H02P6/08 H02P7/06

    摘要: An angular velocity estimate (ωe) used in motor control of an electric power steering is obtained as follows. In a first state period during which the motor substantially stops its rotation, a resistance calculation unit (52) calculates a motor resistance value (Rc) on the basis of a detected value (Vm) of motor voltage and a detected value (Im) of motor current. An average calculation unit (53) obtains an average value (Rav) of the calculated resistance values (Rc) in a retained period. A current-resistance characteristic that associates motor current with motor resistance is held in a characteristic holding unit (55), and a characteristic updating unit (54) updates the current-resistance characteristic on the basis of the average value (Rav). An estimate calculation unit (56) calculates the angular velocity estimate (ωe) on the basis of the detected value (Vm) of motor voltage, the detected value (Im) of motor current and a motor resistance value (Rm) obtained from the current-resistance characteristic.

    摘要翻译: 如下获得用于电动助力转向器的电动机控制中的角速度估计(Ée)。 在电动机基本上停止转动的第一状态期间,电阻计算部52基于电动机电压的检测值(Vm)和电动机电压的检测值(Im),计算电动机电阻值(Rc) 电机电流。 平均计算单元(53)在保留期间中求出计算出的电阻值(Rc)的平均值(Rav)。 将电动机电流与电动机电阻相关联的电流电阻特性保持在特性保持单元(55)中,特性更新单元(54)基于平均值(Rav)更新电流电阻特性。 估计计算单元(56)基于电动机电压的检测值(Vm),电动机电流的检测值(Im)和从电流获得的电动机电阻值(Rm)来计算角速度估计(Ée) 电阻特性。

    Verfahren zum Bereitstellen einer Information über den Betriebszustand eines Lenkungssystems
    58.
    发明公开
    Verfahren zum Bereitstellen einer Information über den Betriebszustand eines Lenkungssystems 有权
    一种用于提供关于转向系统的操作状态的信息的方法

    公开(公告)号:EP2233384A3

    公开(公告)日:2012-01-25

    申请号:EP10002548.5

    申请日:2010-03-11

    申请人: Audi AG

    IPC分类号: B62D5/04

    CPC分类号: B62D5/0481 B62D5/008

    摘要: In einer Hüfskraftlenkung (26) eines Kraftfahrzeugs (20) kann ein Elektromotor an seine Leistungsgrenze geraten, insbesondere wenn zusätzlich eine Überlagerungslenkung in dem Kraftfahrzeug (10) vorgesehen ist. Vorgestellt wird ein Verfahren, demgemäß eine Drehzahlreserve (Δn a , -Δn b ) ermittelt wird, und zwar aus der tatsächlich von dem Elektromotor aufgebrachten Leistung, einer insbesondere situativ ermittelten maximal möglichen Leistung und der ermittelten aktuellen Drehzahl. In Abhängigkeit von der so ermittelten Drehzahlreserve können andere Systeme reagieren, zum Beispiel kann die Überlagerungslenkung betrieblich angepasst werden.

    System and method for determining an absolute position of a motor shaft in an electric steering system
    60.
    发明公开
    System and method for determining an absolute position of a motor shaft in an electric steering system 有权
    系统和方法,用于确定在电动动力转向电动机轴的绝对位置

    公开(公告)号:EP2386465A2

    公开(公告)日:2011-11-16

    申请号:EP11004000.3

    申请日:2011-05-13

    IPC分类号: B62D15/02

    摘要: A system and a method for determining an absolute position of a motor shaft (42) in an electric power steering system (24) during an ignition off state are provided. The system includes a microprocessor (66) that energizes first and second position sensors (60,62) to generate first and second signals, respectively, at a first time, and third and fourth signals, respectively, at a second time. The microprocessor (66) determines a first relative position value based on the first and second signals, and a second relative position value based on the third and fourth signals. The microprocessor (66) determines an amount of relative rotation of the shaft (42) during the ignition off state based on the first and second relative position values, and determines a current absolute position value based on a previously stored absolute position value and the amount of relative rotation of the rotatable shaft (42).

    摘要翻译: 一种系统,并且设置在电动助力转向系统(24)的马达轴(42)的在点火关闭状态的绝对位置确定性采矿的方法。 该系统包括一个微处理器(66)做了分别激励第一和第二位置传感器(60,62),以产生第一和第二信号,分别在第一时间,以及第三和第四信号,在第二时间。 微处理器(66)bestimmt基于所述第一和第二信号的第一相对位置值,以及基于所述第三和第四信号的第二位置相对值。 微处理器(66)点火开关基于所述第一和第二相对位置值状态期间在所述轴(42)的相对转动的量bestimmt,和bestimmt基于先前存储的绝对位置值和所述量的当前的绝对位置值 的可旋转基轴(42)的相对旋转。