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公开(公告)号：US06564131B2
公开(公告)日：2003-05-13
申请号：US09995074
申请日：2001-11-27
申请人： Reeny T. Sebastian , Scott M Wendling , Steven Klein , Karen A Boswell , Steven J. Collier-Hallman
发明人： Reeny T. Sebastian , Scott M Wendling , Steven Klein , Karen A Boswell , Steven J. Collier-Hallman
IPC分类号： B62D504
CPC分类号： G05B9/02 , B60T2250/04 , B60T2260/022 , B62D7/1509 , B62D7/159 , G01B21/26
摘要： A method for controlling a four-wheel steering system of a vehicle includes recognizing a driver-selectable mode, receiving a signal preferably indicative of a front wheel steering-angle, and determining a rear-to-front steering-angle ratio in correspondence with the recognized mode and the received signal; and optionally includes receiving a signal indicative of vehicle speed, recognizing a current system state, determining a desired steering-angle, generating a command based on the desired and received steering-angles and the recognized system state, and diagnosing conditions in accordance with the received signals in order to enter a output disable mode.
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2.发明授权公开(公告)号：US06949901B1
公开(公告)日：2005-09-27
申请号：US10929603
申请日：2004-08-30
摘要： A system and a method for controlling a steering position of at least one rear wheel of a vehicle are provided. The vehicle has both a brushless electric motor with a plurality of electrical phase windings and a steering actuator. The brushless electric motor has a rotor configured to drive the steering actuator. The steering actuator is operably coupled to at least one rear vehicle wheel. The method includes determining a desired voltage value indicative of about one-half of a peak-to-peak voltage to be applied to each of the plurality of electrical phase windings of the brushless electric motor based on a desired rear vehicle wheel steering angle and a measured rear vehicle wheel steering angle. The method further includes determining when the desired voltage value is greater than a threshold voltage level. The method further includes calculating a phase advance angle based on at least the desired voltage value and the threshold voltage level. The method further includes phase advancing a plurality of voltage waveforms applied to the plurality of electrical phase windings, wherein each phase advanced voltage waveform is phase advanced an amount substantially equal to the phase advance angle, wherein phase advancing the voltage waveforms increases a speed of the rotor at a desired torque to thereby increase a speed at which the steering actuator moves at least one rear vehicle wheel toward the desired rear vehicle wheel steering angle.
摘要翻译： 提供一种用于控制车辆的至少一个后轮的转向位置的系统和方法。 车辆具有具有多个电相绕组的无刷电动机和转向致动器。 无刷电动机具有驱动转向致动器的转子。 转向致动器可操作地联接到至少一个后轮车轮。 该方法包括基于期望的后车辆转向角确定指示要施加到无刷电动机的多个电相绕组中的每一个的峰 - 峰值电压的大约一半的期望电压值，以及 测量后车轮转向角度。 该方法还包括确定期望电压值何时大于阈值电压电平。 该方法还包括基于至少所需电压值和阈值电压电平来计算相位提前角。 该方法还包括对施加到多个电相绕组的多个电压波形进行相位前进，其中每个相位超前电压波形的相位超前于相位提前角，其中相位超前的电压波形增加了 转子以期望的扭矩，从而增加转向致动器将至少一个后车轮朝向期望的后车轮转向角度移动的速度。
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公开(公告)号：US07306535B2
公开(公告)日：2007-12-11
申请号：US10879599
申请日：2004-06-29
IPC分类号： B62D11/06
CPC分类号： B62D5/008 , F16H48/12 , Y10T74/19 , Y10T74/19005
摘要： A vehicle steering device may include a rotatable input shaft, a motor in communication with an input augmentation shaft, the input augmentation shaft and the input shaft sharing a longitudinal axis, and the motor further having a stator stationary with respect to rotation of the input shaft. The vehicle steering device may further include a differential mechanism for providing variable ratio steering to the steering device. The differential mechanism may be a harmonic drive differential or a planetary gearing system. In one embodiment, an external wave generator may be used within the harmonic drive differential gearing mechanism. The vehicle steering device may include a sensorless synchronous machine.
摘要翻译： 车辆转向装置可以包括可旋转的输入轴，与输入增加轴连通的电动机，输入增加轴和输入轴共享纵向轴线，并且电动机还具有相对于输入轴的旋转静止的定子 。 车辆转向装置还可以包括用于向转向装置提供可变比率转向的差动机构。 差速机构可以是谐波驱动差速器或行星齿轮传动系统。 在一个实施例中，可以在谐波驱动差动齿轮传动机构内使用外部波发生器。 车辆转向装置可以包括无传感器同步机。
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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。
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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
CPC分类号： G01R31/315 , G01R15/207 , H05K1/18 , Y10T29/4902 , Y10T29/4913
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。
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6.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
申请人： Mark P. Colosky , Steven J. Collier-Hallman , Roy McCann , Phillip Weilhammer , James Charles Tallant, II
发明人： Mark P. Colosky , Steven J. Collier-Hallman , Roy McCann , Phillip Weilhammer , James Charles Tallant, II
IPC分类号： H02P118
CPC分类号： H02P6/20 , H02P6/182 , H02P2209/07
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。
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公开(公告)号：US07721616B2
公开(公告)日：2010-05-25
申请号：US11556775
申请日：2006-11-06
CPC分类号： F16H1/16 , F16H55/24 , F16H57/0006 , F16H2057/0213 , F16H2057/0225 , Y10T74/19284 , Y10T74/19358 , Y10T74/1955 , Y10T74/19623 , Y10T74/1966 , Y10T74/19828
摘要： Disclosed herein is an apparatus that relates to a gear set. The apparatus includes, a housing, a first gear movable in the housing such that a first axis defined by the first gear is repositionable relative to the housing, a second gear in mesh with the first gear, and a second axis defined by the second gear. The apparatus constrains movement of the first axis to a plane containing both the first axis and a line commonly perpendicular to the first axis and the second axis, and a biasing member that urges the first gear toward the second gear.
摘要翻译： 本文公开了一种涉及齿轮组的装置。 该装置包括壳体，可在壳体中移动的第一齿轮，使得由第一齿轮限定的第一轴线相对于壳体可重新定位，与第一齿轮啮合的第二齿轮和由第二齿轮限定的第二轴线 。 该装置约束第一轴线移动到包含第一轴线和与第一轴线和第二轴线共同垂直的线路的平面以及将第一齿轮朝向第二齿轮推动的偏置构件。
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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。
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公开(公告)号：US20090288907A1
公开(公告)日：2009-11-26
申请号：US12434891
申请日：2009-05-04
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。
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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
CPC分类号： F16H7/1281 , F16H7/14 , F16H2007/0825 , F16H2007/0874 , F16H2007/0891 , F16H2007/0893
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。
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