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1. 发明申请

WO2008020231A3 METHODS OF PROCESSING ENCODER SIGNALS 审中-公开
公开(公告)号：WO2008020231A3
公开(公告)日：2008-02-21
申请号：PCT/GB2007/003148
申请日：2007-08-17
申请人： TRW LIMITED , DIXON, Christopher, David , WILLIAMS, Connel, Brett , REEVE, John, Martin , LI, Jiang
发明人： DIXON, Christopher, David , WILLIAMS, Connel, Brett , REEVE, John, Martin , LI, Jiang
IPC分类号： G01P3/481 , G01P3/487
摘要： A method of processing signals in a rotary encoder of the kind which comprises at least one annular track of encoding regions arranged as an alternating pattern of first encoding regions and second encoding regions, comprises providing a first detector at a first fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; providing a second detector at a second fixed position which is arranged to produce a first alternating output signal as the track of encoding regions rotates about its axis past the detector, the alternating signal comprising a series of transitions between a first state corresponding to the detector being aligned with a first encoding region and a second state corresponding to the detector being aligned with second encoding region; identifying a usable pair of transitions in the first and second signals comprising a transition of the first signal from the first state to the second state followed by a transition in the second signal from the first state to the second state without in the intervening period having changed from the second state to the first state; measuring the elapsed time between the transitions of the identified usable pair, and determining the angular velocity by combining the elapsed time with the spacing between the first and second detectors.

2. 发明申请

WO2003105329A1 MOTOR DRIVE CONTROL WITH A SINGLE CURRENT SENSOR USING SPACE VECTOR TECHNIQUE 审中-公开
标题翻译：使用空间矢量技术的单电流传感器的电机驱动控制
公开(公告)号：WO2003105329A1
公开(公告)日：2003-12-18
申请号：PCT/GB2003/002466
申请日：2003-06-05
申请人： TRW LIMITED , TRW AUTOMOTIVE US LLC , WILLIAMS, Connel, Brett , COLES, Jeffrey, Ronald , SZABO, Adrian , DIXON, Christopher, David , LI, Jiang , FARDOUN, Abbas, Ahmad
发明人： WILLIAMS, Connel, Brett , COLES, Jeffrey, Ronald , SZABO, Adrian , DIXON, Christopher, David , LI, Jiang , FARDOUN, Abbas, Ahmad
IPC分类号： H02M7/5387
CPC分类号： H02M7/53875 , H02M7/5387 , H02M7/53873 , H02M7/5395 , H02M2001/0009 , H02M2007/53876 , H02P23/0004
摘要： A drive system for a three phase brushless AC motor is arranged to optimise the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x where more than two states are required to meet a minimum state time requirement determined by the single sensor method, and calculating three or more state vectors which produce the demanded vector x whilst still allowing single current sensing. Various methods of optimising the PWM pattern so as to give maximum output whilst using single current sensing are also disclosed.
摘要翻译：布置用于三相无刷AC电动机的驱动系统以优化晶体管切换模式以改善功率输出，同时允许使用单个传感器在所有相中的电流测量。这通过定义电压需求向量x来实现，其中需要多于两个状态以满足由单个传感器方法确定的最小状态时间要求，以及计算产生所需向量x的三个或更多个状态向量，同时仍然允许单个电流感测。还公开了优化PWM模式以便在使用单电流感测时给出最大输出的各种方法。

3. 发明申请

WO2007072025A2 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动马达控制
公开(公告)号：WO2007072025A2
公开(公告)日：2007-06-28
申请号：PCT/GB2006/004870
申请日：2006-12-21
申请人： TRW LIMITED , WILLIAMS, Connel, Brett , DIXON, Christopher, David , LI, Jiang
发明人： WILLIAMS, Connel, Brett , DIXON, Christopher, David , LI, Jiang
IPC分类号： H02P21/14 , H02P6/18
CPC分类号： H02P6/182 , B62D5/046 , B62D5/065 , H02P6/185 , H02P21/18
摘要： A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm which is reliant on movement of the motor to determine the motor position, and to start up the motor from rest by applying voltages to the motor that are independent of the position of the motor.
摘要翻译：用于电动机的控制系统被布置成通过位置确定算法从至少一个电参数确定电动机的位置，所述位置确定算法依赖于电动机的移动以确定电动机位置，并且从电动机起动电动机通过向马达施加电压来休息，马达独立于马达的位置。

4. 发明申请

WO2008132449A1 ELECTRIC POWER STEERING 审中-公开
标题翻译：电力转向
公开(公告)号：WO2008132449A1
公开(公告)日：2008-11-06
申请号：PCT/GB2008/001446
申请日：2008-04-24
申请人： TRW LIMITED , WILLIAMS, Connel, Brett , DIXON, Christopher, David
发明人： WILLIAMS, Connel, Brett , DIXON, Christopher, David
IPC分类号： B62D5/04 , H02H7/085
CPC分类号： B62D5/0469 , B62D5/046
摘要： An electromagnetic apparatus, such as an electric power assisted steering system (1), comprising: a mechanical component (5) having a limited range of travel having at least one end position and a motor (6) arranged to apply a force to the mechanical component (5) to cause it to move along its range of travel, in which the motor comprises at least three phases each comprising a phase winding, a rotor and drive circuitry to supply drive currents (12, 13, 14) to each of the phases dependent upon the position of the rotor relative to the phase windings, and in which the apparatus is arranged such that when the mechanical component (5) is at an end position in use, the magnitude of the drive current supplied to at least one phase of the motor (6) is substantially at a minimum, and in which the drive circuitry is arranged so as to provide, in use, cyclic drive signals to each phase as the rotor rotates, where the drive signals applied to each phase are out of phase with the drive signals provided to other phases.
摘要翻译：一种诸如电动助力转向系统（1）的电磁设备，包括：具有至少一个端部位置的行程有限范围的机械部件（5）和布置成向所述机械部件施加力的电动机（6）组件（5）使其沿其行程范围移动，其中电动机包括至少三个相，每个相包括相绕组，转子和驱动电路，以将驱动电流（12,13,14）提供给每个取决于转子相对于相绕组的位置的相位，并且其中装置被布置成使得当机械部件（5）处于使用中的终端位置时，提供给至少一相的驱动电流的大小电动机（6）基本上处于最小值，并且其中驱动电路布置成在使用时提供随转子旋转的每个相位的循环驱动信号，其中施加到每个相位的驱动信号不在相位与驱动信号pr 排到其他阶段。

5. 发明申请

WO2007072033A2 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动马达控制
公开(公告)号：WO2007072033A2
公开(公告)日：2007-06-28
申请号：PCT/GB2006/004880
申请日：2006-12-21
申请人： TRW Limited , WILLIAMS, Connel, Brett , DIXON, Christopher, David
发明人： WILLIAMS, Connel, Brett , DIXON, Christopher, David
IPC分类号： H02P21/13 , H02P6/18
CPC分类号： H02P6/18 , B62D5/0481 , B62D5/0487 , B62D5/064 , B62D5/065 , H02P21/13
摘要： A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm. It is further arranged to monitor at least one algorithm parameter defined by the algorithm and if the monitored parameter meets a predetermined fault condition to generate a fault indication.
摘要翻译：用于电动机的控制系统被布置成通过位置确定算法从至少一个电参数确定电动机的位置。还进一步设置为监视由算法定义的至少一个算法参数，以及如果所监视的参数满足预定的故障状况以产生故障指示。

6. 发明申请

WO2009007681A3 ELECTRIC MOTOR CONTROL 审中-公开
公开(公告)号：WO2009007681A3
公开(公告)日：2009-01-15
申请号：PCT/GB2008/002257
申请日：2008-06-30
申请人： TRW LIMITED , DIXON, Christopher, David , ROBERTS, Christopher, Digby
发明人： DIXON, Christopher, David , ROBERTS, Christopher, Digby
IPC分类号： H02P29/02 , H02P6/18 , H02H7/093
摘要： A control system for an electric motor comprises processing means arranged to perform a control process which includes monitoring electrical voltages applied to the motor and electrical currents in the motor, and estimating from them the rotational position of the motor. The system is further arranged to monitor at least one parameter of the control process thereby to detect a stall condition of the motor.

7. 发明申请

WO2003054556A1 ANGULAR VELOCITY SENSOR 审中-公开
标题翻译：角速度传感器
公开(公告)号：WO2003054556A1
公开(公告)日：2003-07-03
申请号：PCT/GB2002/005587
申请日：2002-12-09
申请人： LUCAS INDUSTRIES LIMITED , SCOTSON, Peter, Geoffrey , WILLIAMS, Connel , DIXON, Christopher, David
发明人： SCOTSON, Peter, Geoffrey , WILLIAMS, Connel , DIXON, Christopher, David
IPC分类号： G01P3/489
CPC分类号： G01D5/24452 , G01D5/2449 , G01D18/008 , G01P3/487 , G01P3/489 , G01P21/02
摘要： An angular velocity sensor for a rotor (2) and method of determining angular velocity in which the position at which event generation means (4) pass sensing means (5) is determined using information from the times at which the event generation means (4) passed the sensing means (5) during at least one previous complete revolution to of the rotor (2). Especially applicable to use of Hall Effect Sensors to detect commutation points of a brushless permanent magnet rotor in an Electric Power Assisted Steering apparatus.
摘要翻译：用于转子的角速度传感器（2）和确定角速度的方法，其中事件发生装置（4）通过感测装置（5）的位置是使用来自事件发生装置（4）的时间的信息确定的，在至少一次先前的完成旋转期间将传感装置（5）传递给转子（2）。特别适用于使用霍尔效应传感器来检测电动助力转向装置中无刷永磁转子的换向点。

8. 发明授权

EP1525655B1 MOTOR DRIVE CONTROL WITH A SINGLE CURRENT SENSOR USING SPACE VECTOR TECHNIQUE 有权
标题翻译：采用空间矢量技术的单电流传感器电机驱动控制
公开(公告)号：EP1525655B1
公开(公告)日：2018-02-28
申请号：EP03740708.7
申请日：2003-06-05
申请人： TRW Limited , TRW Automotive U.S. LLC
发明人： WILLIAMS, Connel, Brett , COLES, Jeffrey, Ronald , SZABO, Adrian , DIXON, Christopher, David , LI, Jiang , FARDOUN, Abbas, Ahmad
IPC分类号： H02M7/5387 , H02P21/00
CPC分类号： H02M7/53875 , H02M7/5387 , H02M7/53873 , H02M7/5395 , H02M2001/0009 , H02M2007/53876 , H02P23/0004
摘要： A drive system for a three phase brushless AC motor is arranged to optimise the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x where more than two states are required to meet a minimum state time requirement determined by the single sensor method, and calculating three or more state vectors which produce the demanded vector x whilst still allowing single current sensing. Various methods of optimising the PWM pattern so as to give maximum output whilst using single current sensing are also disclosed.

9. 发明授权

EP1969711B1 ELECTRIC MOTOR CONTROL 有权转让
标题翻译：电动机控制
公开(公告)号：EP1969711B1
公开(公告)日：2010-06-09
申请号：EP06820628.3
申请日：2006-12-21
申请人： TRW Limited
发明人： WILLIAMS, Connel, Brett , DIXON, Christopher, David , LI, Jiang
IPC分类号： H02P21/14 , H02P6/18
CPC分类号： H02P6/182 , B62D5/046 , B62D5/065 , H02P6/185 , H02P21/18

10. 发明公开

EP1972053A2 ELECTRIC MOTOR CONTROL 有权转让
标题翻译：电机控制
公开(公告)号：EP1972053A2
公开(公告)日：2008-09-24
申请号：EP06831444.2
申请日：2006-12-21
申请人： TRW Limited
发明人： WILLIAMS, Connel, Brett , DIXON, Christopher, David
IPC分类号： H02P21/13 , H02P6/18
CPC分类号： H02P6/18 , B62D5/0481 , B62D5/0487 , B62D5/064 , B62D5/065 , H02P21/13
摘要： A control system for an electric motor is arranged to determine the position of the motor from at least one electrical parameter by means of a position determining algorithm. It is further arranged to monitor at least one algorithm parameter defined by the algorithm and if the monitored parameter meets a predetermined fault condition to generate a fault indication.

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