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1. 发明申请

WO2011110828A2 ELECTRIC MOTOR CONTROL 审中-公开
标题翻译：电动马达控制
公开(公告)号：WO2011110828A2
公开(公告)日：2011-09-15
申请号：PCT/GB2011/050281
申请日：2011-02-15
申请人： TRW LIMITED , 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： H02P6/18
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

WO2011128695A2 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：WO2011128695A2
公开(公告)日：2011-10-20
申请号：PCT/GB2011/050748
申请日：2011-04-14
申请人： TRW LIMITED , 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
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.
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布置成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校正的电压需求。

3. 发明申请

WO2011107773A3 CURRENT SENSOR ERROR COMPENSATION 审中-公开
公开(公告)号：WO2011107773A3
公开(公告)日：2011-09-09
申请号：PCT/GB2011/050303
申请日：2011-02-16
申请人： TRW LIMITED , 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
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.

4. 发明申请

WO2017103605A1 MOTOR CONTROL SYSTEM 审中-公开
标题翻译：电机控制系统
公开(公告)号：WO2017103605A1
公开(公告)日：2017-06-22
申请号：PCT/GB2016/053961
申请日：2016-12-16
申请人： TRW LIMITED , TRW AUTOMOTIVE US LLC , ZF FRIEDRICHSHAFEN AG
发明人： DIXON, Christopher David , WILLIAMS, Connel Brett , TERWAY, Prerit , GHAPHERY, Abraham , LAMSAHEL, Hassan , ER, Mesut
IPC分类号： H02P21/00 , H02M1/38
CPC分类号： H02P21/0003 , H02M2001/0025 , H02M2001/385 , H02P21/0025
摘要： A control system for an electric motor comprises a controller which receives as an input a demanded motor current and produces at an output an intermediate voltage demand signal, a voltage demand signal correction means arranged to generate a voltage demand correction signal, and a combining means arranged to combine the intermediate voltage demand signal and the voltage demand correction signal to produce an actual voltage demand signal that is applied to the motor by pulse width modulation of the switches of a motor bridge driver. The correction signal compensates for unwanted non-linearities caused by interlock delays in the switching of the motor bridge switches.
摘要翻译：用于电动机的控制系统包括控制器，该控制器接收要求的电动机电流并在输出端产生中间电压需求信号，电压需求信号校正装置被设置为产生电压需求校正信号以及组合装置，该组合装置被配置为组合中间电压需求信号和电压需求校正信号以产生实际电压需求信号，该实际电压需求信号通过电动机桥驱动器的开关的脉宽调制而被施加到电动机。校正信号补偿由电机桥式开关切换中的互锁延迟引起的不想要的非线性。

5. 发明申请

WO2015004472A2 ROTARY ENCODER 审中-公开
标题翻译：旋转编码器
公开(公告)号：WO2015004472A2
公开(公告)日：2015-01-15
申请号：PCT/GB2014/052112
申请日：2014-07-10
申请人： TRW LIMITED
发明人： DIXON, Christopher David , WILLIAMS, Connel Brett
IPC分类号： G01D5/14
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：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，每个被布置成当编码区域的轨道绕其轴线旋转超过检测器时产生相应的交替输出信号，两个输出信号的组合值假设多个独特状态，其状态从一个状态改变到另一个编码器旋转。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迹的移动时变化时可能发生的可能的状态变化相关联，并且每个值指示位置处的平均误差其发生相应的状态变化。使用的处理装置产生当两个检测器的输出信号的组合状态发生变化时更新的位置信号，位置信号被校正由与状态的最新变化相关联的补偿值所指示的量。

6. 发明申请

WO2014181109A1 METHOD OF CONTROLLING A MOTOR OF AN ELECTRIC POWER ASSISTED STEERING SYSTEM 审中-公开
标题翻译：控制电动辅助转向系统的电动机的方法
公开(公告)号：WO2014181109A1
公开(公告)日：2014-11-13
申请号：PCT/GB2014/051401
申请日：2014-05-08
申请人： TRW LIMITED
发明人： DIXON, Christopher David , WILLIAMS, Connel Brett , JUNGHANNS, Birk
IPC分类号： H02P29/02 , B62D5/04 , B62D5/30 , H02H7/08
CPC分类号： B62D5/0463 , B62D5/046 , B62D5/0484 , H02P29/026
摘要： A method of controlling a motor of an electric power assisted steering system, the motor (14) having a plurality of phases (21), the method comprising taking as an input an input signal (12) indicative of a desired assistance torque and determining from the desired assistance torque a voltage to be applied to each of the phases of the motor, in which the step of determining the voltage to be applied to each of the phases comprises limiting the voltage determined to be applied to each of the phases of the motor dependent upon the voltage provided by a power supply (3) to the motor (14).
摘要翻译：一种控制电力辅助转向系统的电动机的方法，所述电动机（14）具有多个相位（21），该方法包括将表示期望的辅助转矩的输入信号（12）作为输入，并从期望的辅助扭矩施加到电动机的每个相的电压，其中确定施加到每个相的电压的步骤包括限制被确定施加到电动机的每个相的电压取决于由电源（3）提供给电动机（14）的电压。

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