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1. 发明授权

US08751111B2 Controlling motors in electric power assisted steering systems 有权
标题翻译：控制电动助力转向系统中的电机
公开(公告)号：US08751111B2
公开(公告)日：2014-06-10
申请号：US12517910
申请日：2007-12-07
申请人： Russell Wilson-Jones , Anthony Walter Burton
发明人： Russell Wilson-Jones , Anthony Walter Burton
IPC分类号： A01B69/00 , B62D6/00 , B62D11/00 , B62D12/00 , B63G8/20 , B63H25/04 , G05D1/00 , G06F7/00 , G06F17/00 , G06F19/00
CPC分类号： B62D5/0463 , B62D6/00 , B62D6/008 , B62D6/04 , B62D15/025
摘要： A method of controlling an electric motor in an electric power assisted steering system, the motor being arranged so as to apply a force to part of a steering mechanism of a vehicle, in which the method comprises calculating a force demand indicative of an assistance force dependent upon the torque applied by a user (TD) to the steering mechanism that it is to be applied to the steering mechanism to reduce the exertion required by the user to steer the vehicle; combining the force demand with an overlay force demand (TER) indicative of a force which it is desired to overlay over the assistance force, to generate a combined assistance force (TA); and controlling the motor according to the combined assistance force, such that together with the force applied by the user, a total force is applied to the steering mechanism, in which, in order to generate the combined assistance force the torque applied by the user is subjected to a non-linear boost function and in which the overlay force demand is combined with the force demand such that, for an arbitrary change in the overlay force demand the change in the total force is independent of the torque applied by the user over a range of torques applied by the user.
摘要翻译：一种在电力辅助转向系统中控制电动机的方法，所述电动机被布置成对车辆的转向机构的一部分施加力，其中所述方法包括计算指示辅助力依赖的力的需求由用户（TD）施加到转向机构上的扭矩施加到转向机构上以减少用户转向车辆所需的扭矩; 将强制需求与表示希望覆盖在辅助力上的力的重叠力需求（TER）相结合以产生组合辅助力（TA）; 并且根据组合的辅助力来控制电动机，使得与用户施加的力一起，将总的力施加到转向机构，其中为了产生组合的辅助力，由用户施加的扭矩是经受非线性增强功能，并且其中重叠力需求与力需求相结合，使得对于重叠力的任意改变，总的力的变化不依赖于用户在一个由用户施加的扭矩范围。

2. 发明申请

US20110010054A1 CONTROLLING MOTORS IN ELECTRIC POWER ASSISTED STEERING SYSTEMS 有权
标题翻译：控制电动机辅助转向系统
公开(公告)号：US20110010054A1
公开(公告)日：2011-01-13
申请号：US12517910
申请日：2007-12-07
申请人： Russell Wilson-Jones , Anthony Walter Burton
发明人： Russell Wilson-Jones , Anthony Walter Burton
IPC分类号： B62D6/08
CPC分类号： B62D5/0463 , B62D6/00 , B62D6/008 , B62D6/04 , B62D15/025
摘要： A method of controlling an electric motor in an electric power assisted steering system, the motor being arranged so as to apply a force to part of a steering mechanism of a vehicle, in which the method comprises calculating a force demand indicative of an assistance force dependent upon the torque applied by a user (TD) to the steering mechanism that it is to be applied to the steering mechanism to reduce the exertion required by the user to steer the vehicle; combining the force demand with an overlay force demand (TER) indicative of a force which it is desired to overlay over the assistance force, to generate a combined assistance force (TA); and controlling the motor according to the combined assistance force, such that together with the force applied by the user, a total force is applied to the steering mechanism, in which, in order to generate the combined assistance force the torque applied by the user is subjected to a non-linear boost function and in which the overlay force demand is combined with the force demand such that, for an arbitrary change in the overlay force demand the change in the total force is independent of the torque applied by the user over a range of torques applied by the user.
摘要翻译：一种在电力辅助转向系统中控制电动机的方法，所述电动机被布置成对车辆的转向机构的一部分施加力，其中所述方法包括计算指示辅助力依赖的力的需求由用户（TD）施加到转向机构上的扭矩施加到转向机构上以减少用户转向车辆所需的扭矩; 将强制需求与表示希望覆盖在辅助力上的力的重叠力需求（TER）相结合以产生组合辅助力（TA）; 并且根据组合的辅助力来控制电动机，使得与用户施加的力一起，将总的力施加到转向机构，其中为了产生组合的辅助力，由用户施加的扭矩是经受非线性增强功能，并且其中重叠力需求与力需求相结合，使得对于重叠力的任意改变，总的力的变化不依赖于用户在一个由用户施加的扭矩范围。

3. 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。

4. 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。

5. 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。

6. 发明授权

US06691817B2 Electrical power-assisted steering systems 有权
标题翻译：电动助力转向系统
公开(公告)号：US06691817B2
公开(公告)日：2004-02-17
申请号：US10061965
申请日：2002-02-01
申请人： Russell Wilson-Jones
发明人： Russell Wilson-Jones
IPC分类号： B62D600
CPC分类号： B62D5/0484
摘要： An electrical power-assisted steering system is disclosed comprising an electric motor connected through a gearbox to act on a steering mechanism of the vehicle, the electric motor having a plurality of phase windings connected to a star point and switching means 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 windings, and an open position which prevents current flowing in a respective phase winding. The system incorporates a safety circuit operative when a fault develops to smooth out the transition between the presence and absence of servo support in assisting and not assisting by providing a prescribed period of damped operation as part of a shut-down phase.
摘要翻译：公开了一种电动助力转向系统，其包括通过齿轮箱连接以作用于车辆的转向机构的电动机，所述电动机具有连接到星形点的多个相绕组和设置在至少一相中的开关装置所述开关装置可在电流能够在所述相绕组中流动的关闭位置之间移动，以及阻止电流在各自的相绕组中流动的打开位置。当故障发生时，该系统包括可操作的安全电路，用于在协助存在和不存在伺服支持之间平滑过渡，并且通过在停机阶段的一部分提供规定的阻尼操作周期来辅助。

7. 发明授权

US06597136B2 Compensation for motor inertia in electric power assisted steering systems 有权
公开(公告)号：US06597136B2
公开(公告)日：2003-07-22
申请号：US10002946
申请日：2001-11-15
申请人： Anthony Walter Burton , Simon David Stevens , Russell Wilson Jones , Marie Saunier , Tom Michael Richard Ernest Roberts
发明人： Anthony Walter Burton , Simon David Stevens , Russell Wilson Jones , Marie Saunier , Tom Michael Richard Ernest Roberts
IPC分类号： H02P700
CPC分类号： B62D5/0466 , B62D5/0463
摘要： An electric power assisted steering system of the kind in which an electric motor is operatively connected to a steering assembly through a gearbox to apply an assistance torque to the steering assembly and in which the steering assembly includes a steering column coupled at one end to a driver's handwheel and at the other end to steerable wheels, a means being provided for generating a signal representative of the velocity of rotation of the steering column. The system includes a high pass filter which is adapted to generate, for frequencies below a prescribed threshold, a signal at least approximately proportional to steering column acceleration and representative of the inertia of the rotor of the electric motor, the latter signal being arranged to be used to compensate for the motor rotor inertia in an overall assistance torque demand as developed by the system.

8. 发明授权

US06354396B1 Electric power assisted steering systems 失效
标题翻译：电动辅助转向系统
公开(公告)号：US06354396B1
公开(公告)日：2002-03-12
申请号：US09496705
申请日：2000-02-02
申请人： Steven John Horton , Russell Wilson-Jones , Simon David Stevens
发明人： Steven John Horton , Russell Wilson-Jones , Simon David Stevens
IPC分类号： B62D504
CPC分类号： B62D15/02 , H02P6/16
摘要： An electric power assisted steering system is disclosed which comprises a steering shaft connected at one end to the handwheel and at its other end to at least one roadwheel, while an electric motor is connected to the steering a gearbox having a non-integer reduction gear ratio. Two sensors are also provided with one sensing the angular position of the motor rotor and the other sensing the angular position of the steering shaft. The presence of the non-integer gear ratio produces a beat frequency between the output of the two sensors from which an unambiguous measurement of the angular position of the steering shaft over a range of greater than one complete revolution can be made. The sensors may comprise either absolute position sensors or index-type sensors.
摘要翻译：公开了一种电动助力转向系统，其包括一端连接到手轮并且在另一端连接到至少一个公路的转向轴，而电动机连接到具有非整数减速比的变速箱。还提供两个传感器，其中一个传感器检测电动机转子的角度位置，另一个感测转向轴的角位置。非整数齿轮比的存在在两个传感器的输出之间产生拍频，可以在该传感器的输出之间进行转向轴的角位置在大于一整圈的范围内的明确测量。传感器可以包括绝对位置传感器或索引型传感器。

9. 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。

10. 发明授权

US08434583B2 Electric power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US08434583B2
公开(公告)日：2013-05-07
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： 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 system to provide motor torque to the steering system 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 the motor to the steering system. The motor torque demand signal comprises a driver demand component dependent upon the torque applied by the driver; and a diagnostic component independent of the torque applied by the 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 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，连接到转向系统的一部分以向转向系统提供电动机转矩的电动机和适于从转矩传感器接收输出信号并产生电动机的电动机控制器指示由马达施加到转向系统的扭矩的扭矩需求信号。马达扭矩需求信号包括取决于驾驶员施加的扭矩的驾驶员需求分量; 以及与驾驶员施加的扭矩无关的诊断部件，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，并且如果相关性超出预定范围，则产生指示输出信号有故障的信号。

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