Closed-loop torque control for electric power steering
    3.
    发明授权
    Closed-loop torque control for electric power steering 失效
    用于电动助力转向的闭环转矩控制

    公开(公告)号:US5198981A

    公开(公告)日:1993-03-30

    申请号:US594468

    申请日:1990-10-09

    IPC分类号: B62D5/04

    CPC分类号: B62D5/0463

    摘要: A control system for electric power steering develops a desired operator exerted steering torque command independent of operator exerted torque, compares that command to a measure of actual operator exerted steering torque and controls an electric motor providing electric power steering assist to minimize the difference between the desired operator exerted steering torque command and the actual operator exerted steering torque.

    摘要翻译: 用于电动助力转向的控制系统产生所需操作者独立于操作者施加的扭矩的转向转矩指令,将该指令与实际操作者施加的转向转矩的测量值进行比较,并且控制提供电动助力转向辅助的电动机以最小化期望的 操作员施加转向扭矩指令,实际操作者施加转向力矩。

    Methods and motor computer program products for motor control by the implementation of damping for over-speed conditions
    4.
    发明授权
    Methods and motor computer program products for motor control by the implementation of damping for over-speed conditions 有权
    方法和电机计算机程序产品用于电机控制,通过实施超速条件的阻尼

    公开(公告)号:US08498781B2

    公开(公告)日:2013-07-30

    申请号:US11869847

    申请日:2007-10-10

    IPC分类号: B62D6/00

    摘要: A method for controlling the response of an electric steering system by implementing damping for over-speed conditions is disclosed. The method includes the step of determining the velocity of an electric motor within the electric steering system, and determining a voltage limit value, wherein the voltage limit value is calculated as a function of the velocity of the electric motor. The method further includes the step of associating the voltage limit value with a motor voltage command in order to produce a limited voltage command, and applying the limited voltage command to the motor in order to provide a braking torque to the motor.

    摘要翻译: 公开了一种通过实施超速条件的阻尼来控制电动转向系统的响应的方法。 该方法包括确定电动转向系统内的电动机的速度并确定电压极限值的步骤,其中根据电动机的速度计算电压极限值。 该方法还包括将电压极限值与电动机电压指令相关联以产生有限电压指令的步骤,以及向电动机施加有限电压指令以向电动机提供制动转矩。

    Methods and Motor Computer Program Products for Motor Control by the Implementation of Damping for Over-Speed Conditions
    5.
    发明申请
    Methods and Motor Computer Program Products for Motor Control by the Implementation of Damping for Over-Speed Conditions 有权
    通过实施超速条件阻尼的电机控制方法和电机计算机程序产品

    公开(公告)号:US20080167776A1

    公开(公告)日:2008-07-10

    申请号:US11869847

    申请日:2007-10-10

    IPC分类号: G06F19/00

    摘要: The present invention relates to a method for controlling the response of an electric steering system by implementing damping for over-speed conditions, the method comprising the steps of determining the velocity of an electric motor comprised within the electric steering system, and determining a voltage limit value, wherein the voltage limit value is calculated as a function of the velocity of the electric motor. The method further comprises the steps of associating the voltage limit value with a motor voltage command in order to produce a limited voltage command, and applying the limited voltage command to the motor in order to provide a braking torque to the motor.

    摘要翻译: 本发明涉及通过实施超速条件的阻尼来控制电动转向系统的响应的方法,所述方法包括以下步骤:确定包括在电动转向系统内的电动机的速度,以及确定电压限制 值,其中根据电动机的速度计算电压极限值。 该方法还包括以下步骤:将电压限制值与电动机电压指令相关联,以便产生有限电压指令,并将有限电压指令施加到电动机,以向电动机提供制动转矩。

    Load dependent belt tensioner
    6.
    发明申请
    Load dependent belt tensioner 审中-公开
    负载相关皮带张紧器

    公开(公告)号:US20080081718A1

    公开(公告)日:2008-04-03

    申请号:US11894379

    申请日:2007-08-21

    IPC分类号: F16H7/08

    摘要: A belt tensioner apparatus is provided for a pulley assembly having an input pulley rotatably connected to an output pulley via a flexible belt. The tensioner apparatus includes a belt contact device engaged with a first portion of the belt and also engaged with a second portion of the belt different from the first portion of the belt. The belt contact device is coupled to a base so as to enable movement of the belt contact device with respect to the base, such that the belt contact device moves against the second portion of the belt responsive to a tension force created in the first portion of the belt by rotation of the input pulley, to create a tension force in the second portion of the belt.

    摘要翻译: 一种皮带张紧器装置用于带轮组件,该滑轮组件具有通过柔性带可转动地连接到输出滑轮的输入皮带。 所述张紧器装置包括与所述带的第一部分接合的带接触装置,并且还与所述带的与所述带的第一部分不同的第二部分接合。 带接触装置联接到基座,以便能够使皮带接触装置相对于基座移动,使得皮带接触装置响应于在第一部分中产生的张力而抵靠皮带的第二部分移动 皮带通过输入滑轮的旋转,以在皮带的第二部分中产生张力。

    Electric power steering system, controller, and method of operation
    7.
    发明授权
    Electric power steering system, controller, and method of operation 有权
    电动助力转向系统,控制器及操作方法

    公开(公告)号:US08051945B2

    公开(公告)日:2011-11-08

    申请号:US12434891

    申请日:2009-05-04

    IPC分类号: B62D5/04

    CPC分类号: B62D5/0484 B62D5/046

    摘要: An electric power steering system for a vehicle includes a motor for providing assistance in turning the wheels of the vehicle. The motor is electrically connected to a controller. The controller includes a power device, such as a power transistor, electrically connected to the motor to variably provide electric power to the motor as needed. The controller also includes a gate drive device electrically connected to the power device for regulating operation the power device. A shutdown mechanism is electrically connected between the gate drive device and a power input. In the event of a fault, the shutdown mechanism isolates electrical power from the gate drive device. This prevents the power device from providing electric power to the power steering motor.

    摘要翻译: 用于车辆的电动助力转向系统包括用于提供车辆转向车轮辅助的电动机。 电机电连接到控制器。 控制器包括电连接到电动机的功率器件,例如功率晶体管,以根据需要向电动机可变地提供电力。 控制器还包括电连接到功率器件的栅极驱动器件,用于调节功率器件的操作。 关闭机构电连接在栅极驱动装置和电源输入之间。 在发生故障的情况下,关闭机构将隔离来自栅极驱动装置的电力。 这防止了动力装置向动力转向电动机提供电力。

    Electric Power Steering System, Controller, and Method of Operation
    8.
    发明申请
    Electric Power Steering System, Controller, and Method of Operation 有权
    电动转向系统,控制器和操作方法

    公开(公告)号:US20090288907A1

    公开(公告)日:2009-11-26

    申请号:US12434891

    申请日:2009-05-04

    IPC分类号: B62D5/04 G06F19/00

    CPC分类号: B62D5/0484 B62D5/046

    摘要: An electric power steering system for a vehicle includes a motor for providing assistance in turning the wheels of the vehicle. The motor is electrically connected to a controller. The controller includes a power device, such as a power transistor, electrically connected to the motor to variably provide electric power to the motor as needed. The controller also includes a gate drive device electrically connected to the power device for regulating operation the power device. A shutdown mechanism is electrically connected between the gate drive device and a power input. In the event of a fault, the shutdown mechanism isolates electrical power from the gate drive device. This prevents the power device from providing electric power to the power steering motor.

    摘要翻译: 用于车辆的电动助力转向系统包括用于提供车辆转向车轮辅助的电动机。 电机电连接到控制器。 控制器包括电连接到电动机的功率器件,例如功率晶体管,以根据需要向电动机可变地提供电力。 控制器还包括电连接到功率器件的栅极驱动器件,用于调节功率器件的操作。 关闭机构电连接在栅极驱动装置和电源输入之间。 在发生故障的情况下,关闭机构将隔离来自栅极驱动装置的电力。 这防止了动力装置向动力转向电动机提供电力。

    Electric circuit board current sensor
    9.
    发明授权
    Electric circuit board current sensor 失效
    电路板电流传感器

    公开(公告)号:US4893073A

    公开(公告)日:1990-01-09

    申请号:US303702

    申请日:1989-01-30

    IPC分类号: G01R15/20 G01R31/315 H05K1/18

    摘要: An electric circuit board has a current trace thereon and a notch in the edge and an opening therethrough on opposite sides of the trace. A magnetic sensor is retained in the opening; and a flux member retained by the notch and opening forms a magnetic circuit around the current trace to concentrate current induced flux through the magnetic sensor. The flux member is made of a ductile magnetic material and is therefore easy to manufacture and handle without breakage compared to prior art ferrite flux members. It is also resilient so as to permit a "snap-on" design for ease of assembly with positive retention of the flux member on the board and of the magnetic sensor within the opening with minimal series air gap. The flux member further has high internal eddy current and hysteresis losses for inherent high frequency filtering to reduce aliasing distortion in sensor output to digital apparatus when applied to a measurement of PWM motor current.

    摘要翻译: 电路板上有一个电流迹线,边缘上有一个槽口,在轨迹的相对两侧有一个开口。 磁性传感器保持在开口内; 并且由凹口和开口保持的磁通构件在电流迹线周围形成磁路,以将电流感应磁通集中在磁传感器上。 磁通构件由延性磁性材料制成,因此与现有技术的铁氧体助焊剂构件相比,易于制造和处理而不会破损。 它也是弹性的,以便允许“卡扣式”设计以便于组装,其中助焊剂部件正确地保持在板上,并且具有最小的串联气隙的开口内的磁传感器。 磁通部件还具有高内部涡电流和滞后损耗,用于固有的高频滤波,以减少传感器输出到数字设备时的混叠失真,当应用于PWM电机电流的测量时。

    Method and apparatus for calibrating and initializing an electronically commutated motor
    10.
    发明授权
    Method and apparatus for calibrating and initializing an electronically commutated motor 有权
    用于校准和初始化电子换向电机的方法和装置

    公开(公告)号:US06826499B2

    公开(公告)日:2004-11-30

    申请号:US10232356

    申请日:2002-08-30

    IPC分类号: H02P118

    摘要: Disclosed herein is a method and system for initializing a rotating device such as an electronically commutated electric machine. The system comprises: an electric machine; a position sensor subsystem operatively connected to the electric machine configured to measure a position and transmit a position signal to a controller. The controller executes a method initializing position for the electric machine, the method comprising: establishing a sensor subsystem datum indicative of a measurement reference point for a sensor subsystem; obtaining a calibration value corresponding to a distance to a selected magnetic reference position for the electric machine, relative to the sensor subsystem datum; and measuring a position and calculating a position delta relative to an initial reference. The method also includes: estimating an offset from the sensor subsystem datum to an initial reference; determining an absolute position estimate of the electric machine relative to the magnetic reference position. The absolute position estimate is responsive to the calibration value, the position delta, and the offset from the sensor subsystem datum to the initial reference.

    摘要翻译: 这里公开了一种用于初始化诸如电子换向电机的旋转装置的方法和系统。 该系统包括:电机; 操作地连接到电机的位置传感器子系统被配置成测量位置并将位置信号传送到控制器。 所述控制器执行所述电机的方法初始化位置,所述方法包括:建立指示传感器子系统的测量基准点的传感器子系统数据; 相对于传感器子系统数据获得对应于电机的选定磁参考位置的距离的校准值; 并且测量位置并计算相对于初始参考的位置增量。 该方法还包括:估计从传感器子系统数据到初始参考的偏移; 确定电机相对于磁参考位置的绝对位置估计。 绝对位置估计响应于校准值,位置增量和从传感器子系统基准到初始参考的偏移量。