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11. 发明申请

US20120006612A1 ELECTRIC POWER STEERING SYSTEM 有权
标题翻译：电力转向系统
公开(公告)号：US20120006612A1
公开(公告)日：2012-01-12
申请号：US13087899
申请日：2011-04-15
申请人： Russell Wilson-Jones , Birk Junghanns , Timothy Sworn , Geoffrey Tullener
发明人： Russell Wilson-Jones , Birk Junghanns , Timothy Sworn , Geoffrey Tullener
IPC分类号： B62D6/08 , G01L3/02 , B62D5/04
CPC分类号： B62D5/0463 , B62D5/0469 , G01L5/221 , G01L25/003
摘要： An electric power assisted steering system comprises a torque sensor, a motor connected to a part of the steering assembly to provide an assistance torque to the steering assembly and a motor controller which is adapted to receive an output signal from the torque sensor and to generate a motor torque demand signal indicative of the torque to be applied by said motor to said steering system. The motor torque demand signal comprises a driver demand component with a value dependent upon the value of said handwheel torque applied by the driver; and a diagnostic component with a value independent of said handwheel torque applied by said driver and which varies in value over time in a predetermined manner. The system further comprises a monitor that correlates the diagnostic component with the output signal and generates a signal indicating that the output signal is faulty if the correlation between the two correlated signals falls outside of a predefined range.
摘要翻译：电动辅助转向系统包括转矩传感器，连接到转向组件的一部分以向转向组件提供辅助转矩的电动机和适于从扭矩传感器接收输出信号并产生电动机扭矩需求信号，其指示由所述电动机施加到所述转向系统的转矩。电动机转矩需求信号包括具有取决于驾驶员施加的所述手轮转矩的值的驾驶员需求部件; 以及诊断部件，其具有与所述驾驶员所施加的所述手轮转矩无关的值，并且以预定的方式随时间变化。该系统还包括监视器，其将诊断部件与输出信号相关联，并且如果两个相关信号之间的相关性超出预定范围，则产生指示输出信号有故障的信号。

12. 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。

13. 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”。

14. 发明授权

US06330140B1 Method of and circuit for testing an electrical actuator drive stage 有权
标题翻译：用于测试电动执行器驱动级的方法和电路
公开(公告)号：US06330140B1
公开(公告)日：2001-12-11
申请号：US09126000
申请日：1999-05-11
申请人： Russell Wilson-Jones , John Michael Ironside
发明人： Russell Wilson-Jones , John Michael Ironside
IPC分类号： H02H318
CPC分类号： G01R31/42 , G01R31/007 , G01R31/2829
摘要： A circuit is provided for testing a drive stage of an actuator, such as a motor of an EPAS system. A power supply circuit comprises a contact for supplying normal drive stage current and a resistor for supplying reduced drive stage current before the normal current is supplied. A measuring circuit measures a drive stage electrical parameter such as supply voltage and a comparator compares this with an acceptable value. If the measured parameter corresponds to a current through the drive stage which is different from an expected value, a fault is signaled and the contact is prevented from closing.
摘要翻译：提供了用于测试诸如EPAS系统的电动机的致动器的驱动级的电路。电源电路包括用于提供正常驱动级电流的触点和用于在提供正常电流之前提供降低的驱动级电流的电阻器。测量电路测量诸如电源电压的驱动级电气参数，并且比较器将其与可接受的值进行比较。如果测量参数对应于不同于期望值的通过驱动级的电流，则发出故障并且防止接触闭合。

15. 发明授权

US06211631B1 Electrical power-assisted steering systems 失效
标题翻译：电动助力转向系统
公开(公告)号：US06211631B1
公开(公告)日：2001-04-03
申请号：US09458486
申请日：1999-12-09
申请人： Russell Wilson-Jones , Steven John Horton , John Michael Ironside , Mark Anthony Wilkes , Michael Appleyard
发明人： Russell Wilson-Jones , Steven John Horton , John Michael Ironside , Mark Anthony Wilkes , Michael Appleyard
IPC分类号： H02K710
CPC分类号： H02K7/1166 , B62D5/0406 , B62D5/0484 , H02K5/225 , H02K11/21 , H02K11/215 , H02K11/24 , H02K11/33 , H02K2203/03 , H02K2211/03 , Y02E10/725
摘要： An electrical power-assisted steering system is disclosed comprising a brushless electric motor (1) which has a plurality of phase windings connected at a start point and in which a switching means (13) such as a relay is provided in at least one phase of the motor, the switching means being movable between a closed position in which current is able to flow in the phase winding and an open position which prevents current flowing in the respective phase in the event of a fault. Also disclosed is a substantially rigid connector assembly (19) onto which is mounted the switching means (13), conductors (20) for connecting the motor phase windings and a motor position sensor (21) to an associated motor control means (6), the connector acting as a support for the motor stator, which simplifies the steps involved in assembly. In another aspect of the invention, the electrical power-assisted steering system includes a one-piece casing (3) which acts as a housing for the gearset, torque sensor, control means and at least part of the motor.
摘要翻译：公开了一种电动辅助转向系统，其包括无刷电动机（1），该无刷电动机（1）在起始点处连接有多个相绕组，并且在至少一个相位中设置有诸如继电器的开关装置（13）电动机，开关装置可在电流能够在相绕组中流动的关闭位置和在故障情况下防止在相位相中流动的电流的打开位置之间移动。还公开了一种基本上刚性的连接器组件（19），其上安装有开关装置（13），用于将电动机相绕组连接的导体（20）和电动机位置传感器（21）连接到相关联的电动机控制装置（6）连接器用作电动机定子的支撑件，这简化了组装所涉及的步骤。在本发明的另一方面，电动助力转向系统包括一体式壳体（3），其用作齿轮组的壳体，转矩传感器，控制装置和至少部分电动机。

16. 发明授权

US5765116A Driver assistance system for a vehicle 失效
标题翻译：车辆驾驶员辅助系统
公开(公告)号：US5765116A
公开(公告)日：1998-06-09
申请号：US715751
申请日：1996-09-19
申请人： Russell Wilson-Jones , Raglan Horatio Andrew Harold Tribe , Michael Appleyard
发明人： Russell Wilson-Jones , Raglan Horatio Andrew Harold Tribe , Michael Appleyard
IPC分类号： B60R21/00 , B60K31/00 , B60W30/00 , B62D6/00 , G05D1/02 , G08G1/16 , B62D5/04
CPC分类号： B62D15/025 , G05D1/0246 , B60T2201/08 , B60T2201/087 , G05D1/0242 , G05D1/0255
摘要： A video camera or equivalent sensor is mounted on a vehicle and used to detect the lane markings on the road (usually the white painted lines). An associated signal processor (11) estimates the vehicle's lateral position in relation to the lane markings. An electric motor (4) coupled to the steering mechanism (1) is used to provide a torque input to the steering which may either assist or oppose the steering torque from the driver. The processor (11) is designed to assist the driver to maintain the vehicle's lane position by holding the vehicle at a set-point using a biasing torque. This simulates the effect of the lane being cambered upwards towards the lane edges. However the driver is able to override or cancel the effect if the driver applied steering torque exceeds a prescribed torque threshold.
摘要翻译：视频摄像机或等效传感器安装在车辆上，用于检测道路上的车道标记（通常为白色线条）。相关联的信号处理器（11）相对于车道标记估计车辆的横向位置。联接到转向机构（1）的电动机（4）用于向转向器提供扭矩输入，其可以辅助或反对来自驾驶员的转向扭矩。处理器（11）被设计成通过使用偏置扭矩将车辆保持在设定点来辅助驾驶员来保持车辆的车道位置。这样可以模拟向上弯曲的车道对车道边缘的影响。然而，如果驾驶员施加的转向扭矩超过规定的扭矩阈值，则驾驶员能够覆盖或取消该效果。

17. 发明授权

US06266591B1 Controller for an electric power assisted steering system and an electric power assisted steering system 失效
标题翻译：用于电力辅助转向系统和电力辅助转向系统的控制器
公开(公告)号：US06266591B1
公开(公告)日：2001-07-24
申请号：US09155616
申请日：1998-09-29
申请人： Russell Wilson-Jones , Steven J Horton
发明人： Russell Wilson-Jones , Steven J Horton
IPC分类号： A01B6900
CPC分类号： B62D5/0463 , B62D5/0481
摘要： A controller for an electric power assisted steering system comprises a drive circuit (2) for controlling current to a motor (1) and a data processor (8) for controlling the motor current and hence assistance torque. A circuit (9) generates a current limit which is a monotonically decreasing function of vehicle speed. A comparator (6) compares motor current with the current limit and switches off the drive circuit (2) if the current limit is exceeded.
摘要翻译：用于电力辅助转向系统的控制器包括用于控制电动机（1）的电流的驱动电路（2）和用于控制电动机电流以及因此辅助转矩的数据处理器（8）。电路（9）产生电流极限，其是车速的单调递减函数。比较器（6）将电机电流与电流限制进行比较，如果超过电流限制，则关闭驱动电路（2）。

18. 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。

19. 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。

20. 发明授权

US06194849B1 Electrical power-assisted steering systems 失效
标题翻译：电动助力转向系统
公开(公告)号：US06194849B1
公开(公告)日：2001-02-27
申请号：US09068746
申请日：1998-05-13
申请人： Russell Wilson-Jones , Steven John Horton , John Michael Ironside , Mark Anthony Wilkes , Michael Appleyard
发明人： Russell Wilson-Jones , Steven John Horton , John Michael Ironside , Mark Anthony Wilkes , Michael Appleyard
IPC分类号： A02K710
CPC分类号： H02K7/1166 , B62D5/0406 , B62D5/0484 , H02K5/225 , H02K11/21 , H02K11/215 , H02K11/24 , H02K11/33 , H02K2203/03 , H02K2211/03 , Y02E10/725
摘要： An electrical power-assisted steering system comprising a brushless electric motor which has a plurality of phase windings connected at a star point and in which a switching device such as a relay is provided in at least one phase of the motor, the switching device being movable between a closed position in which current is able to flow in the phase winding and an open position which prevents current flowing in the respective phase in the event of a fault.
摘要翻译：一种电动助力转向系统，包括无刷电动机，所述无刷电动机具有连接在星形点的多个相绕组，并且其中诸如继电器的开关装置设置在所述电动机的至少一相中，所述开关装置可移动在电流能够在相绕组中流动的关闭位置和防止在发生故障的情况下在相应相中流动的电流的打开位置。

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