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1. 发明授权

US6124688A Motor drive control 失效
标题翻译：电机驱动控制
公开(公告)号：US6124688A
公开(公告)日：2000-09-26
申请号：US101530
申请日：1998-07-09
申请人： Jeffrey Ronald Coles , Russell Wilson Jones , Andrew James Stephen Williams
发明人： Jeffrey Ronald Coles , Russell Wilson Jones , Andrew James Stephen Williams
IPC分类号： H02P6/08 , H02P6/10 , H02P5/06
CPC分类号： H02P6/10 , H02P6/085
摘要： A control strategy for a multiple phase brushless motor (1) is disclosed in which the top (2, 3, 4) and the bottom (5, 6, 7) switching devices in two arms of the motor bridge are driven using complementary pulse width modulated waveforms, so that the top device (2, 3, 4) in one of the arms is in the ON state while the bottom device (5, 6, 7) is in the OFF state and vice versa. In an alternative arrangement, the control strategy described hereinbefore is used at high motor speeds while at low motor speeds a conventional modulation scheme is used in which a top switching device (2, 3, 4) in one arm of the bridge is in the ON state and a bottom device (5, 6, 7) in a different arm of the bridge is pulse width modulated. In another aspect, a method of calculating the position of the motor rotor is disclosed.
摘要翻译： PCT No.PCT / GB97 / 00052 Sec。 371日期：1998年7月9日 102（e）日期1998年7月9日PCT 1997年1月9日PCT PCT。公开号WO97 / 25767 日期1997年7月17日公开了一种用于多相无刷电动机（1）的控制策略，其中电动机桥的两个臂中的顶部（2,3,4）和底部（5,6,7）开关装置是驱动使用互补脉冲宽度调制波形，使得一个臂中的顶部装置（2,3,4）处于ON状态，而底部装置（5,6,7）处于OFF状态，反之亦然。在另一种配置中，上文描述的控制策略以高电机速度使用，而在低电机速度下，使用传统的调制方案，其中桥的一个臂中的顶部开关装置（2,3,4）处于ON 状态，并且在桥的不同臂中的底部装置（5,6,7）被脉宽调制。另一方面，公开了一种计算电机转子位置的方法。

2. 发明授权

US06631781B2 Method and apparatus for controlling an electric powered assisted steering system using an adaptive blending torque filter 有权
标题翻译：使用自适应混合扭矩滤波器控制电动辅助转向系统的方法和装置
公开(公告)号：US06631781B2
公开(公告)日：2003-10-14
申请号：US10077594
申请日：2002-02-15
申请人： Andrew James Stephen Williams , Russell Wilson Jones , Anthony Walter Burton , Simon David Stevens , Kevin McLaughlin
发明人： Andrew James Stephen Williams , Russell Wilson Jones , Anthony Walter Burton , Simon David Stevens , Kevin McLaughlin
IPC分类号： H02P700
CPC分类号： B62D5/0463
摘要： An apparatus and method for controlling an electric steering assist system, which system provides assist in response to a steering control signal, the apparatus comprising: torque sensing means (20) operatively connected to a vehicle hand wheel (12) for providing a torque signal (Ts) indicative of applied steering torque, blending filter means connected to the torque sensing means (20) for providing a blended filtered torque signal having a first functional characteristic at torque frequencies less than a blending frequency and a second functional characteristic at torque frequencies greater than the blending frequency, the blending filter means including a low pass filter (70) which passes all frequencies below the blending frequency and a high pass filter (71) which passes all frequencies above the blending frequency, steering assist means for providing steering assist in response to a control signal, control means operatively connected to the blending filter means for providing said control signal to the steering assist means in response to the blended filtered torque signal, and means (166) whereby high frequency gain of the steering assist system is arranged to be low for on-center operation of the hand wheel and relatively higher for off-center operation.
摘要翻译：一种用于控制电动转向辅助系统的装置和方法，该系统提供对转向控制信号的响应的辅助，所述装置包括：扭矩感测装置（ 20 ），其可操作地连接到用于提供指示施加的转向扭矩的扭矩信号（Ts）的车辆手轮（ 12 ），连接到扭矩感测装置的混合过滤装置（ 20 ），用于在扭矩频率大于混合频率的扭矩频率和第二功能特性下提供具有第一功能特性的混合滤波扭矩信号，所述混合滤波器装置包括低通过低于混合频率的所有频率的通过滤波器（ 70 ），其通过所有的高通滤波器（ 71 ）高于混合频率的频率，用于提供转向舵的转向辅助装置响应于控制信号，控制装置可操作地连接到混合滤波器装置，用于响应于混合滤波的扭矩信号向控制辅助装置提供所述控制信号，以及装置（ 166 ），由此，转向辅助系统的高频增益被布置为用于手轮的中心操作的低频增益，并且对于偏心操作而言相对较高。

3. 发明授权

US06597141B1 Position sensing in brushless motor systems 有权
标题翻译：无刷电机系统中的位置传感
公开(公告)号：US06597141B1
公开(公告)日：2003-07-22
申请号：US09485332
申请日：2000-05-01
申请人： Russell Wilson-Jones , Anthony Walter Burton , Andrew James Stephen Williams , John Michael Ironside
发明人： Russell Wilson-Jones , Anthony Walter Burton , Andrew James Stephen Williams , John Michael Ironside
IPC分类号： G05B1101
CPC分类号： H02P6/16 , B62D5/046 , B62D15/0235 , G05B19/401
摘要： A method of calculating the position of the rotor of a motor (1) in for example an electrical power assisted steering assembly is disclosed. The method comprises the steps of measuring the output shaft (2) (i.e. steering column) position, and scaling the measured value to produce an estimated motor rotor position value. This estimated value will be relative to an arbitrary datum point, and so the method further includes steps of adding an offset value derived from low resolution measurements of rotor position obtained using Hall effect sensors provided on the motor. Offsets for compensating for backlash and (in a second embodiment) compliance can also be included. Thus, the method allows high resolution information from an output shaft sensor (e.g. a torque sensor with a position dependent output) to be combined with the low resolution output from the Hall effect sensors to produce a high resolution rotor position signal. A correction is also made to allow for “staleness” in the Hall effect sensor output when calculating the offsets by monitoring rotor speed.
摘要翻译：公开了一种计算电动机（1）的转子在例如电力辅助转向组件中的位置的方法。该方法包括以下步骤：测量输出轴（2）（即转向柱）的位置，以及缩放测量值以产生估计的电机转子位置值。该估计值将相对于任意基准点，因此该方法还包括以下步骤：添加由使用设置在电动机上的霍尔效应传感器获得的转子位置的低分辨率测量得出的偏移值。用于补偿间隙的偏移和（在第二实施例中）顺从性的偏移也可以包括在内。因此，该方法允许来自输出轴传感器（例如具有与位置相关的输出的扭矩传感器）的高分辨率信息与来自霍尔效应传感器的低分辨率输出组合以产生高分辨率转子位置信号。还通过监视转子速度来计算偏移量时，校正霍尔效应传感器输出中的“陈旧”。

4. 发明授权

US06729434B2 Electrical power assisted steering systems 有权
标题翻译：电动辅助转向系统
公开(公告)号：US06729434B2
公开(公告)日：2004-05-04
申请号：US09895918
申请日：2001-06-29
申请人： Simon David Stevens , Anthony Walter Burton , Andrew James Stephen Williams , John Nicholas Cheel , Russell Wilson Jones
发明人： Simon David Stevens , Anthony Walter Burton , Andrew James Stephen Williams , John Nicholas Cheel , Russell Wilson Jones
IPC分类号： B62D504
CPC分类号： B62D6/00 , B62D5/0466
摘要： An electric power assisted steering system is disclosed in which a torque demand signal (8) is generated and applied to an electric motor (1) operatively connected to a steering mechanism (5) in order to assist a driver of the vehicle when steering the vehicle. The torque demand signal (8) includes a damping component that is dependent upon a measurement of torque T carried by the steering mechanism and a measurement of the angular velocity &ohgr; of the steering mechanism. The torque produced by the motor (1) is not obtrusive during “hands-on” maneuvers but provides enhanced damping in other maneuvers such as a steering flick.
摘要翻译：公开了一种电力辅助转向系统，其中产生转矩需求信号（8）并将其施加到可操作地连接到转向机构（5）的电动机（1），以便在转向车辆时辅助车辆的驾驶员。扭矩需求信号（8）包括取决于由转向机构承载的扭矩T的测量和转向机构的角速度ω的测量的阻尼分量。电动机（1）产生的扭矩在“动手”操作过程中并不突出，但在其他操纵（如转向滑动）中提供了增强的阻尼。

5. 发明授权

US06282472B1 Electric power steering system with boost curve having portions defined by polynomial equations 有权
标题翻译：具有升压曲线的电动助力转向系统具有由多项式方程式定义的部分
公开(公告)号：US06282472B1
公开(公告)日：2001-08-28
申请号：US09281491
申请日：1999-03-30
申请人： Russell Wilson Jones , Andrew James Stephen Williams
发明人： Russell Wilson Jones , Andrew James Stephen Williams
IPC分类号： B62D504
CPC分类号： B62D5/0463
摘要： An electrical power assisted steering system is disclosed having a boost curve which has inverse symmetry about a zero input torque value, each half of the boost curve comprising a first portion defined by a first polynomial equation between a zero value and a first value, and a second portion defined by a second polynomial between a second value and a third value, in which the gradient of the first portion of the curve at the first value is equal to the gradient of the second portion of the curve at the second value. By storing values for the first, second and third values and the gradient of each polynomial at those values a smooth boost curve can be defined by storing only a small amount of parameters.
摘要翻译：公开了一种电力辅助转向系统，其具有关于零输入转矩值具有反对称性的升压曲线，所述升压曲线的每一半包括由零值和第一值之间的第一多项式方程定义的第一部分，第二部分由第二值和第三值之间的第二多项式定义，其中第一值的曲线的第一部分的梯度等于第二值的曲线的第二部分的梯度。通过存储第一，第二和第三值的值以及在这些值处的每个多项式的梯度，可以通过仅存储少量参数来定义平滑升压曲线。

6. 发明授权

US6104152A Motor drive control 有权
标题翻译：电机驱动控制
公开(公告)号：US6104152A
公开(公告)日：2000-08-15
申请号：US356163
申请日：1999-07-16
申请人： Jeffrey Ronald Coles , Russell Wilson Jones , Andrew James Stephen Williams
发明人： Jeffrey Ronald Coles , Russell Wilson Jones , Andrew James Stephen Williams
IPC分类号： H02P6/08 , H02P6/10 , H02P7/06
CPC分类号： H02P6/10 , H02P6/085
摘要： A control strategy for a multiple phase brushless motor (1) is disclosed in which the top (2, 3, 4) and the bottom (5, 6, 7) switching devices in two arms of the motor bridge are driven using complementary pulse width modulated waveforms, so that the top device (2, 3, 4) in one of the arms is in the ON state whilst the bottom device (5, 6, 7) is in the OFF state and vice versa. In an alternative arrangement, the control strategy described hereinbefore is used at high motor speeds whilst at low motor speeds a conventional modulation scheme is used in which a top switching device (2, 3, 4) in one arm of the bridge is in the ON state and a bottom device (5, 6, 7) in a different arm of the bridge is pulse width modulated. In another aspect, a method of calculating the position of the motor rotor is disclosed.
摘要翻译：公开了一种用于多相无刷电动机（1）的控制策略，其中电动机桥的两个臂中的顶部（2,3,4）和底部（5,6,7）开关装置使用互补的脉冲宽度调制波形，使得一个臂中的顶部装置（2,3,4）处于ON状态，而底部装置（5,6,7）处于OFF状态，反之亦然。在另一种配置中，上述控制策略以高电机速度使用，而在低电机速度下，使用传统的调制方案，其中桥的一个臂中的顶部开关装置（2,3,4）处于ON 状态，并且在桥的不同臂中的底部装置（5,6,7）被脉宽调制。另一方面，公开了一种计算电机转子位置的方法。

7. 发明授权

US06637544B2 Relating to electrical power assisted steering systems 有权
标题翻译：关于电动辅助转向系统
公开(公告)号：US06637544B2
公开(公告)日：2003-10-28
申请号：US10368821
申请日：2003-02-19
申请人： Simon David Stevens , Anthony Walter Burton , Andrew James Stephen Williams , John Nicholas Cheel , Russell Wilson Jones
发明人： Simon David Stevens , Anthony Walter Burton , Andrew James Stephen Williams , John Nicholas Cheel , Russell Wilson Jones
IPC分类号： B62D504
CPC分类号： B62D6/00 , B62D5/0466
摘要： An electric power assisted steering system is disclosed in which a torque demand signal (8) is generated and applied to an electric motor (1) operatively connected to a steering mechanism (5) in order to assist a driver of the vehicle when steering the vehicle. The torque demand signal (8) includes a damping component that is dependent upon a measurement of torque T carried by the steering mechanism and a measurement of the angular velocity &ohgr; of the steering mechanism. The torque produced by the motor (1) is not obtrusive during “hands-on” manoeuvers but provides enhanced damping in other manoeuvers such as a steering flick.
摘要翻译：公开了一种电力辅助转向系统，其中产生转矩需求信号（8）并将其施加到可操作地连接到转向机构（5）的电动机（1），以便在转向车辆时辅助车辆的驾驶员。扭矩需求信号（8）包括取决于由转向机构承载的扭矩T的测量和转向机构的角速度ω的测量的阻尼分量。电动机（1）产生的扭矩在“动手”操作中并不突出，但在其他操纵杆（例如转向滑动）中提供增强的阻尼。

8. 发明授权

US06448738B1 Method of controlling an electric motor having a number of phase windings 失效
标题翻译：控制具有多个相绕组的电动机的方法
公开(公告)号：US06448738B1
公开(公告)日：2002-09-10
申请号：US09309050
申请日：1999-05-10
申请人： Anthony Walter Burton , Steven John Horton , Andrew James Stephen Williams , John Michael Ironside , Russell Wilson Jones
发明人： Anthony Walter Burton , Steven John Horton , Andrew James Stephen Williams , John Michael Ironside , Russell Wilson Jones
IPC分类号： H02P528
CPC分类号： B62D5/0487 , B62D5/046 , B62D5/0463 , H02P21/22
摘要： A motor control strategy for use in combination with an electric motor (1) having a number of phase windings (201, 202, 203) is disclosed, the motor (1) being adapted to produce an output torque in response to current in the windings comprising the steps of during normal operation generating a motor torque demand signal indicative of the output torque required from the motor (1), applying a first set of currents to the windings of the motor in response to the motor torque demand signal to produce a first output torque from the motor and during a test operation to enable diagnostics to be performed generating a motor current demand signal indicative of the total current required in the motor windings (201, 202, 203) and adjusting the currents applied to one or more of the windings in response to both the torque demand signal and the motor current demand signal, whereby the adjusted currents produced in the windings are substantially equal to the total current demanded by the motor current demand signal regardless of the value of the motor torque demand signal and the motor (1) produces a second output torque substantially equal to the first output torque produced during normal operation.
摘要翻译：公开了一种与具有多个相绕组（201,202,203）的电动机（1）组合使用的电动机控制策略，电动机（1）适于响应于绕组中的电流产生输出转矩包括以下步骤：在正常操作期间产生指示从电动机（1）所需的输出转矩的电动机转矩需求信号，响应于电动机转矩需求信号向电动机的绕组施加第一组电流以产生第一来自电动机的输出扭矩和在测试操作期间，使得可以执行诊断，产生指示电动机绕组（201,202,203）中所需的总电流的电动机电流需求信号，并且调整施加到电动机绕组绕组响应于扭矩需求信号和电动机电流需求信号，由此在绕组中产生的调节电流基本上等于电机曲线所需的总电流 nt需求信号，而不管电动机转矩需求信号的值如何，并且电动机（1）产生基本上等于在正常操作期间产生的第一输出转矩的第二输出转矩。

9. 发明申请

US20080189011A1 Electric Power Assisted Steering Apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20080189011A1
公开(公告)日：2008-08-07
申请号：US10594135
申请日：2005-03-18
申请人： Angel Luis Andres Fernandez , Andrew James Stephen Williams , George Thomas Dibben
发明人： Angel Luis Andres Fernandez , Andrew James Stephen Williams , George Thomas Dibben
IPC分类号： B62D6/08 , B62D5/04
CPC分类号： B62D5/0463
摘要： An electric power assisted steering apparatus for a vehicle, comprises a steering mechanism, which operatively connects a steering wheel to the road wheels of the vehicle, an electric motor operatively connected to the steering mechanism, a torque sensing means adapted to produce a first output signal indicative of the torque carried by a portion of the steering mechanism, a vehicle speed sensing means for producing a second output signal indicative of the speed of the vehicle, a signal processing unit adapted to receive the first and second signals and to produce a torque demand signal representative of a torque to be applied to the steering mechanism by the motor; and a motor drive stage adapted to provide a drive current to the motor responsive to the torque demand signal. The apparatus includes torque limiting means, arranged to limit the magnitude of the torque to be applied to the steering mechanism to a maximum of a value that increases in time from a first value to a second value at a rate that is dependent on the second signal. Additionally or alternatively, it may be arranged to limit the maximum torque to a value that increases from a first to a second value at a rate that varies with time.
摘要翻译：一种用于车辆的电动辅助转向装置，包括操作性地将方向盘连接到车辆的车轮的转向机构，可操作地连接到转向机构的电动机，适于产生第一输出信号的转矩检测装置指示由转向机构的一部分承载的扭矩，用于产生指示车辆速度的第二输出信号的车速检测装置，适于接收第一和第二信号并产生扭矩需求的信号处理单元代表由马达施加到转向机构的扭矩的信号; 以及电动机驱动台，其适于根据所述转矩需求信号向所述电动机提供驱动电流。该装置包括扭矩限制装置，其被设置成将施加到转向机构的扭矩的大小限制为以取决于第二信号的速率从第一值到第二值在时间上增加的值的最大值。附加地或替代地，其可以被布置为将最大扭矩限制为以随时间变化的速率从第一值增加到第二值的值。

10. 发明授权

US5821714A Improvements in and relating to motors 失效
标题翻译：马达的改进和相关
公开(公告)号：US5821714A
公开(公告)日：1998-10-13
申请号：US904857
申请日：1997-08-01
申请人： Andrew James Stephen Williams
发明人： Andrew James Stephen Williams
IPC分类号： H02P6/08 , H02P6/14 , H01R39/46
CPC分类号： H02P6/14 , H02P6/085
摘要： A commutation control strategy for eliminating torque ripple and noise from a brushless motor which has a plurality of motor phases connected in a bridge, each phase having a top switching device provided between a phase winding and a positive voltage supply and a bottom switching device provided between the phase winding and a less positive voltage supply in which following commutations of the motor, when the current flowing in a first phase is decaying towards zero and the current in a second phase is rising from zero, the switching devices are operative between a state in which the current flowing in the first phase is caused to decay at a first rate, and another state in which the current flowing in the first phase is caused to decay at a second rate which is lower than the first rate so that the rate of decay of the current in the first phase substantially matches the rate of rise of the current in the second phase.
摘要翻译：一种用于消除来自具有连接在桥中的多个电动机相的无刷电动机的转矩脉动和噪声的换向控制策略，每相具有设置在相绕组和正电压源之间的顶部开关装置和设置在相绕组和较小的正电压电源，其中当电流在第一相中流动的电流衰减为零并且第二相中的电流从零升高时，随后的电动机的换向，开关装置在使第一相中流动的电流以第一速率衰减，并且使第一相中流动的电流以低于第一速率的第二速率衰减的另一状态使得衰减速率在第一阶段中的电流基本上与第二阶段中的电流的上升速率匹配。

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