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公开(公告)号：US07888831B2
公开(公告)日：2011-02-15
申请号：US12296959
申请日：2007-04-13
CPC分类号： H02K11/215 , H02K7/003
摘要： A rotor structure for a motor comprising a rotor having an end surface; a shaft extending from the end surface; an encoder member attached to the end surface of the rotor; and a coupler coupled to the shaft adjacent to the encoder member for coupling a further member to the shaft, in which the coupler surrounds the shaft and has a lip associated therewith, the lip extending from the coupler towards the encoder member so as to define a void between the coupler and the encoder member. The void defined by the rotor structure may act to contain matters such as swarf that is ejected from the rotor when the encoder member is fixed to the rotor. The rotor may be used in a motor of an electric power assisted steering (EPAS) system.
摘要翻译： 一种用于电动机的转子结构，包括具有端面的转子; 从所述端面延伸的轴; 附接到所述转子的端面的编码器构件; 以及联接到所述轴的耦合到所述编码器构件的联接器，用于将另外的构件联接到所述轴，所述联接器围绕所述轴并具有与其相关联的唇部，所述唇缘从所述联接器朝向所述编码器构件延伸，以便限定 耦合器和编码器构件之间的空隙。 由转子结构限定的空隙可以用于包含当编码器构件固定到转子时从转子喷出的切屑等物质。 转子可用于电动辅助转向（EPAS）系统的电动机。
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2.发明授权Motor drive control with a single current sensor using space vector technique 有权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：US07612522B2
公开(公告)日：2009-11-03
申请号：US11983196
申请日：2007-11-07
申请人： Connel Brett Williams , Jeffrey Ronald Coles , Adrian Szabo , Christopher David Dixon , Jiang Li , Abbas Ahmad Fardoun
发明人： Connel Brett Williams , Jeffrey Ronald Coles , Adrian Szabo , Christopher David Dixon , Jiang Li , Abbas Ahmad Fardoun
IPC分类号： H02P1/26
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 optimize 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。
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公开(公告)号：US20080265808A1
公开(公告)日：2008-10-30
申请号：US11632111
申请日：2005-07-08
申请人： Malcolm Eric Sparey , Adrian Szabo , Graham William White , Jeffrey Ronald Coles , Connel Brett Williams , Yangsheng Chen
发明人： Malcolm Eric Sparey , Adrian Szabo , Graham William White , Jeffrey Ronald Coles , Connel Brett Williams , Yangsheng Chen
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 including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means 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 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： 具有转子和相绕组（a，b，c）的电动机的驱动系统包括： 驱动电路，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，其布置成感测转子的位置; 控制装置，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，并且可控制以将标称电压升高到更高的电压以施加到绕组。
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公开(公告)号：US08004220B2
公开(公告)日：2011-08-23
申请号：US11632111
申请日：2005-07-08
申请人： Malcolm Eric Sparey , Adrian Szabo , Graham William White , Jeffrey Ronald Coles , Connel Brett Williams , Yangsheng Chen
发明人： Malcolm Eric Sparey , Adrian Szabo , Graham William White , Jeffrey Ronald Coles , Connel Brett Williams , Yangsheng Chen
IPC分类号： H02P6/08
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 including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means 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 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： 具有转子和相绕组（a，b，c）的电动机的驱动系统包括： 驱动电路，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，其布置成感测转子的位置; 控制装置，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，并且可控制以将标称电压升高到更高的电压以施加到绕组。
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公开(公告)号：US07015664B2
公开(公告)日：2006-03-21
申请号：US11071534
申请日：2005-03-03
IPC分类号： H02P3/18
CPC分类号： H02P6/185
摘要： A drive system for a three phase brushless motor uses an algorithm for position sensing which measures the inductance in the motor phases and determines the position from the measured inductances. In order to reduce acoustic noise, the inductances are measured during test periods Tsd, which are conducting states added to the PWM pattern in each PWM period. The test periods have net voltage of zero and therefore do not affect the output of the motor, but are sufficiently long to allow inductance measuring as well as the use of a single current sensor for current sensing.
摘要翻译： 用于三相无刷电动机的驱动系统使用用于位置感测的算法，其测量电动机相位中的电感并且从测量的电感确定位置。 为了降低声学噪声，在每个PWM周期中加到PWM模式的导通状态的测试周期T s s测量电感。 测试周期的净电压为零，因此不影响电机的输出，但足够长以允许电感测量以及使用单个电流传感器进行电流检测。
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公开(公告)号：US6124688A
公开(公告)日：2000-09-26
申请号：US101530
申请日：1998-07-09
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。
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公开(公告)号：US08368275B2
公开(公告)日：2013-02-05
申请号：US12302172
申请日：2007-05-04
CPC分类号： H02K3/28 , H02K3/18 , Y10T29/49009 , Y10T29/49071
摘要： A stator for a multi-phase electric motor comprises a plurality of teeth for each phase. The windings on two teeth from one phase are formed from a single length of conductor. The windings on a first one of the teeth being formed at least in part from two sections of the conductor spaced apart along the length of the conductor, and the windings on a second one of the teeth being formed from an intermediate section of the conductor between the spaced apart sections.
摘要翻译： 用于多相电动机的定子包括用于每相的多个齿。 来自一个相位的两个齿上的绕组由单一长度的导体形成。 第一齿上的绕组至少部分地沿着导体的长度间隔开的导体的两个部分形成，并且第二个齿上的绕组由导体的中间部分形成在 间隔开的部分。
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公开(公告)号：US20090302718A1
公开(公告)日：2009-12-10
申请号：US12296959
申请日：2007-04-13
IPC分类号： H02K11/00
CPC分类号： H02K11/215 , H02K7/003
摘要： A rotor structure for a motor comprising a rotor having an end surface; a shaft extending from the end surface; an encoder member attached to the end surface of the rotor; and a coupler coupled to the shaft adjacent to the encoder member for coupling a further member to the shaft, in which the coupler surrounds the shaft and has a lip associated therewith, the lip extending from the coupler towards the encoder member so as to define a void between the coupler and the encoder member. The void defined by the rotor structure may act to contain matters such as swarf that is ejected from the rotor when the encoder member is fixed to the rotor. The rotor may be used in a motor of an electric power assisted steering (EPAS) system.
摘要翻译： 一种用于电动机的转子结构，包括具有端面的转子; 从所述端面延伸的轴; 附接到所述转子的端面的编码器构件; 以及联接到所述轴的耦合到所述编码器构件的联接器，用于将另外的构件联接到所述轴，所述联接器围绕所述轴并具有与其相关联的唇部，所述唇缘从所述联接器朝向所述编码器构件延伸，以便限定 耦合器和编码器构件之间的空隙。 由转子结构限定的空隙可以用于包含当编码器构件固定到转子时从转子喷出的切屑等物质。 转子可用于电动辅助转向（EPAS）系统的电动机。
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9.发明授权Motor drive control with a single current sensor using space vector technique 有权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：US07308192B2
公开(公告)日：2007-12-11
申请号：US11006460
申请日：2004-12-07
申请人： Connel Brett Williams , Jeffrey Ronald Coles , Adrian Szabo , Christopher David Dixon , Jiang Li , Abbas Ahmad Fardoun
发明人： Connel Brett Williams , Jeffrey Ronald Coles , Adrian Szabo , Christopher David Dixon , Jiang Li , Abbas Ahmad Fardoun
IPC分类号： H02P1/26
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 that is operative to optimize a transistor switching pattern to improve power output while allowing current measurement in all of the phases using a single sensor. This is achieved by defining a voltage demand vector where more than two states are required to meet a minimum state time requirement determined by the single sensor and calculating three or more state vectors that produce the demand vector while still allowing single current sensing.
摘要翻译： 用于三相无刷交流电动机的驱动系统，其可操作以优化晶体管开关模式以改善功率输出，同时使用单个传感器允许所有相中的电流测量。 这通过定义电压需求向量来实现，其中需要多于两个状态以满足由单个传感器确定的最小状态时间要求，并且计算产生需求矢量的三个或更多个状态向量，同时仍然允许单个电流感测。
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公开(公告)号：US6104152A
公开(公告)日：2000-08-15
申请号：US356163
申请日：1999-07-16
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。
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