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1. 发明申请

WO2011110828A3 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动马达控制
公开(公告)号：WO2011110828A3
公开(公告)日：2012-08-23
申请号：PCT/GB2011050281
申请日：2011-02-15
申请人： TRW LTD , WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , HUXFORD ROBERT JAMES
发明人： WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , HUXFORD ROBERT JAMES
IPC分类号： H02P6/00 , H02P27/08
CPC分类号： H02P6/001 , H02P6/007 , H02P6/34 , H02P27/08
摘要： A drive system, for a multi-phase brushless electric motor comprising a plurality of phases, comprises: a drive circuit including switch means (26) arranged to vary the phase voltage applied to each of the phases (12, 14, 6) so as to switch the motor between a plurality of active states; and control means (33). The control means is arranged to control the switch means so as to provide PWM control of the phase voltages to control the mechanical output of the motor. The control means is arranged to define a sequence for all of the active states and, for each PWM period, to allocate state times for the states required for that period to generate a desired net voltage, and to order the required states in the same order as they occur in the sequence.
摘要翻译：一种用于包括多个相的多相无刷电动机的驱动系统，包括：驱动电路，包括被布置成改变施加到每个相（12,14,6）的相电压的开关装置（26），以便以在多个活动状态之间切换所述电动机; 和控制装置（33）。控制装置被设置为控制开关装置，以便提供相电压的PWM控制以控制电动机的机械输出。控制装置被布置成为所有活动状态定义一个序列，并且对于每个PWM周期，为该周期所需的状态分配状态时间以产生期望的净电压，并以相同顺序对所需状态进行排序因为它们在序列中出现。

2. 发明申请

WO2011128695A3 MOTOR CONTROL WITH VOLTAGE HARMONIC SHAPING 审中-公开
标题翻译：具有电压谐波形状的电机控制
公开(公告)号：WO2011128695A3
公开(公告)日：2012-11-01
申请号：PCT/GB2011050748
申请日：2011-04-14
申请人： TRW LTD , WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , HUXFORD ROBERT JAMES
发明人： WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , HUXFORD ROBERT JAMES
IPC分类号： H02P29/00 , G05B11/01 , H02P21/05
CPC分类号： H02P6/002 , G05B5/01 , H02P21/05 , H02P21/06 , H02P21/22 , H02P29/50
摘要： A control system for an electric motor comprises a current sensing means arranged to produce a current sensing output indicative of electric current in the motor, current control means arranged to receive the current sensing output and to output a voltage demand indicative of voltages to be applied to the motor, and voltage demand correction means arranged to generate a correction signal and to use the correction signal and the voltage demand to produce a corrected voltage demand for voltage harmonic shaping.
摘要翻译：一种用于电动机的控制系统包括电流感测装置，其被布置成产生指示电动机中的电流的电流感测输出，电流控制装置，被布置成接收电流感测输出并输出指示要施加到所述电动机和电压需求校正装置被配置为产生校正信号并且使用所述校正信号和所述电压需求来产生用于电压谐波成形的校正电压需求。

3. 发明申请

WO2007072033A3 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动机控制
公开(公告)号：WO2007072033A3
公开(公告)日：2007-08-09
申请号：PCT/GB2006004880
申请日：2006-12-21
申请人： TRW LTD , 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借助于位置确定算法从至少一个电参数确定电动机的位置。还布置成监视由算法定义的至少一个算法参数，并且如果所监视的参数满足预定的故障条件以生成故障指示。

4. 发明申请

WO2008020231A2 METHODS OF PROCESSING ENCODER SIGNALS 审中-公开
标题翻译：处理编码器信号的方法
公开(公告)号：WO2008020231A2
公开(公告)日：2008-02-21
申请号：PCT/GB2007003148
申请日：2007-08-17
申请人： TRW LTD , 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： G01D5/245
CPC分类号： G01D5/2451 , G01D5/145 , G01D5/24452 , G01D5/2448 , G01D5/2449 , 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.
摘要翻译：一种在旋转编码器中处理信号的方法，所述旋转编码器包括被布置为第一编码区域和第二编码区域的交替图案的编码区域的至少一个环形轨道，包括：在第一固定位置处提供第一检测器，当编码区域的轨道围绕其轴线旋转经过检测器时产生第一交替输出信号，所述交替信号包括在与所述检测器对应的第一状态与第一编码区域对齐和与所述第一编码区域对应的第二状态之间的一系列过渡，检测器与第二编码区域对齐; 在第二固定位置处提供第二检测器，所述第二检测器被布置成随着编码区域的轨道围绕其轴线旋转经过检测器而产生第一交变输出信号，所述交变信号包括在与检测器相对应的第一状态之间的一系列转变，与对应于第二编码区域的第一编码区域和第二状态对齐; 识别第一和第二信号中可用的一对转变，包括第一信号从第一状态到第二状态的转变，接着是第二信号从第一状态到第二状态的转变，而中间时段没有改变从第二状态到第一状态; 测量所识别的可用对的转变之间的经过时间，以及通过将经过的时间与第一和第二检测器之间的间隔组合来确定角速度。

5. 发明申请

WO2007072025A3 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动机控制
公开(公告)号：WO2007072025A3
公开(公告)日：2007-08-09
申请号：PCT/GB2006004870
申请日：2006-12-21
申请人： TRW LTD , 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借助于位置确定算法从至少一个电参数确定电动机的位置，该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通过向电机施加独立于电机位置的电压来进行休息。

6. 发明申请

WO2009136381A3 POSITION SENSORLESS MOTOR CONTROL 审中-公开
标题翻译：位置传感器电机控制
公开(公告)号：WO2009136381A3
公开(公告)日：2010-03-11
申请号：PCT/IB2009051914
申请日：2009-05-08
申请人： TRW AUTOMOTIVE US LLC , WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , COLES JEFFERY RONALD , HUXFORD ROBERT JAMES
发明人： WILLIAMS CONNEL BRETT , DIXON CHRISTOPHER DAVID , COLES JEFFERY RONALD , HUXFORD ROBERT JAMES
IPC分类号： H02P6/18
CPC分类号： H02P6/18 , H02P6/16 , H02P6/185 , H02P6/186 , H02P2203/01
摘要： A control system is provided for an AC electric motor which comprises a rotor and a stator and a plurality of phase windings connected in a star formation, each winding having one end connected to a common neutral point and another end arranged to have a terminal voltage applied to it. The control system comprises switching means arranged to control the terminal voltages applied to the windings and control means arranged to control the switching means so as to switch it between a plurality of states in each of a sequence of PWM periods. The control means is further arranged to measure the voltage at the neutral point at sample times within the PWM periods and to generate from the measured voltages an estimation of the rotational position of the rotor.
摘要翻译：提供了一种用于AC电动机的控制系统，该AC电动机包括转子和定子以及以星形连接的多个相绕组，每个绕组的一端连接到公共中性点，另一端被布置成施加端电压给它控制系统包括被设置为控制施加到绕组的端子电压的开关装置和被布置成控制开关装置的控制装置，以便在PWM周期的每个序列中的多个状态之间切换它。控制装置进一步被布置成在PWM周期内的采样时间处测量中性点处的电压，并从测量的电压产生转子旋转位置的估计。

7. 发明申请

WO2006005927A2 MOTOR DRIVE VOLTAGE-BOOST CONTROL 审中-公开
标题翻译：电机驱动电压升压控制
公开(公告)号：WO2006005927A2
公开(公告)日：2006-01-19
申请号：PCT/GB2005002699
申请日：2005-07-08
申请人： TRW LTD , SPAREY MALCOLM ERIC , SZABO ADRIAN , WHITE GRAHAM WILLIAM , COLES JEFFREY RONALD , WILLIAMS CONNEL BRETT , CHEN YANGSHENG
发明人： SPAREY MALCOLM ERIC , SZABO ADRIAN , WHITE GRAHAM WILLIAM , COLES JEFFREY RONALD , WILLIAMS CONNEL BRETT , CHEN YANGSHENG
IPC分类号： H02P6/00 , H02P6/18
CPC分类号： H02P6/182 , H02P6/16 , H02P2201/09
摘要： A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit (8) including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means (34) arranged to sense the position of the rotor; control means (30) arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means (26) in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.
摘要翻译：一种用于具有转子和相绕组（a，b，c）的电机的驱动系统包括：驱动电路（8），包括与绕组a，b，c相关联的开关装置，用于改变通过绕组的电流; 转子位置检测装置（34），被布置成感测转子的位置; 控制装置（30）被布置成提供驱动信号以控制开关装置; 用于在标称电压下连接到电源的电源输入; 以及与功率输入和功率输出电通信的升压装置（26），并且可控制以将额定电压提升到更高的电压以施加到绕组。

8. 发明申请

WO2011107773A2 CURRENT SENSOR ERROR COMPENSATION 审中-公开
标题翻译：电流传感器错误补偿
公开(公告)号：WO2011107773A2
公开(公告)日：2011-09-09
申请号：PCT/GB2011050303
申请日：2011-02-16
申请人： TRW LTD , WILLIAMS CONNEL BRETT , DIXON CHRISTOPER DAVID , HUXFORD ROBERT JAMES
发明人： WILLIAMS CONNEL BRETT , DIXON CHRISTOPER DAVID , HUXFORD ROBERT JAMES
IPC分类号： H02P21/00
CPC分类号： H02P6/10 , H02P21/00 , H02P21/05 , H02P21/22 , H02P29/50
摘要： A control system for an electric motor comprises a current sensing means arranged to produce a current sensing output indicative of electric current in the motor, current control means arranged to receive the current sensing output and to output a voltage demand indicative of voltages to be applied to the motor, and current sensing correction means arranged to monitor the voltage demand to measure distortion in the current sensing output and to generate a correction signal which is arranged to correct the distortion.
摘要翻译：一种用于电动机的控制系统包括：电流感测装置，被配置为产生指示电动机中的电流的电流感测输出;电流控制装置，被配置为接收电流感测输出并且输出指示待施加到电动机和电流感测校正装置被布置为监测电压需求以测量电流感测输出中的失真并且生成校正信号，该校正信号被设置为校正失真。

9. 发明申请

WO9631941A1 IMPROVEMENTS IN OR RELATING TO LEVITATION SYSTEMS 审中-公开
标题翻译：改进或相关的征税制度
公开(公告)号：WO9631941A1
公开(公告)日：1996-10-10
申请号：PCT/GB9600835
申请日：1996-04-04
申请人： UNIV SHEFFIELD , SHEARWOOD CHRISTOPHER , WILLIAMS CONNEL BRETT , YATES ROBERT BARRET , MELLOR PHILLIP HENRY
发明人： SHEARWOOD CHRISTOPHER , WILLIAMS CONNEL BRETT , YATES ROBERT BARRET , MELLOR PHILLIP HENRY
IPC分类号： G01C19/24 , G01C21/16 , G01P15/125 , H02K7/09 , H02K17/16 , H02N15/02
CPC分类号： H02N15/02 , G01C19/24 , G01C21/16 , G01P15/125 , H02K7/09 , H02K17/16 , H02K17/165 , H02K99/00
摘要： A levitation system which comprises: (a) a high conductivity body member having a greatest dimension of less than 1500 mu m; (b) means for producing a levitating force on the body member; and (c) a miniature system adapted for rotation which further comprises: means for subjecting the body member to a rotating magnetic field such that the body member is rotated in the applied field.
摘要翻译：一种悬浮系统，包括：（a）具有小于1500μm的最大尺寸的高导电性本体构件; （b）在身体构件上产生悬浮力的装置; 和（c）适于旋转的微型系统，其还包括：用于使所述主体部件经受旋转磁场的装置，使得所述主体部件在所施加的磁场中旋转。

10. 发明申请

WO2015004472A3 ROTARY ENCODER 审中-公开
标题翻译：旋转编码器
公开(公告)号：WO2015004472A3
公开(公告)日：2015-03-26
申请号：PCT/GB2014052112
申请日：2014-07-10
申请人： TRW LTD
发明人： DIXON CHRISTOPHER DAVID , WILLIAMS CONNEL BRETT
IPC分类号： G01D5/14 , G01D5/244 , G01D18/00
CPC分类号： G01D5/2449 , G01D5/142 , G01D18/008
摘要： A rotary encoder assembly comprises an annular track comprising an alternating pattern of at least two different encoding regions; a first detector and a second detector each arranged to produce a respective alternating output signal as the track of encoding regions rotates about its axis past the detector, the combined values of the two output signals assuming a plurality of unique states with the states changing from one to another as the encoder rotates. A memory stores compensation values, each value being associated with a respective one of the possible state changes that can occur when the combined values of the two output signals change upon movement of the encoder track, and each indicative of an average error in the position at which the corresponding change of state occurs. A processing means in use generates a position signal that is updated when there is a change in the combined states of the output signals of the two detectors, the position signal being corrected by an amount indicated by the compensation value associated with the latest change in state.
摘要翻译：一种旋转编码器组件包括：环形轨道，其包括至少两个不同编码区域的交替图案; 第一检测器和第二检测器中的每一个被布置为随着编码区域的轨道围绕其轴线旋转经过检测器而产生相应的交替输出信号，两个输出信号的组合值呈现多个独特状态，并且状态从1 随着编码器的旋转到另一个。存储器存储补偿值，每个值与当两个输出信号的组合值在编码器轨道移动时改变时可能发生的可能的状态改变中的相应一个相关联，并且每个值表示在位置处的平均误差这就发生了相应的状态变化。当使用中的处理装置产生位置信号，该位置信号在两个检测器的输出信号的组合状态有变化时被更新，该位置信号被校正了与最新的状态变化相关联的补偿值所指示的量。

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