公开(公告)号：US09093933B2

公开(公告)日：2015-07-28

申请号：US14010632

申请日：2013-08-27

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jihoon Jang ,  Yo Chan Son ,  Steven E. Schulz ,  Leah Dunbar ,  Terry Murrell ,  Daniel L. Kowalewski ,  Silva Hiti

IPC: H02P7/00

CPC classification number: H02P7/0094 ,  H02K11/21 ,  H02K29/06 ,  H02P6/17 ,  H02P2203/00

Abstract: A method for monitoring an electric motor employing a pulse-type rotational position sensor includes monitoring a signal output from the pulse-type rotational position sensor and a reference signal associated with a control signal for the electric motor. A position of a rotor of the electric motor coincident with the reference signal is determined based upon a nominal rotor position, a nominal rotational speed of the rotor and a time between the reference signal and a falling edge of the signal output from the pulse-type rotational position sensor. The electric motor is controlled based upon the position of the rotor.

Abstract translation: 用于监测采用脉冲型旋转位置传感器的电动机的方法包括监视从脉冲型旋转位置传感器输出的信号和与用于电动机的控制信号相关联的参考信号。 与参考信号一致的电动机转子的位置基于转子的标称转子位置，转子的标称转速以及参考信号与从脉冲型输出的信号的下降沿之间的时间来确定 旋转位置传感器 基于转子的位置来控制电动机。

公开(公告)号：US09759737B2

公开(公告)日：2017-09-12

申请号：US14560522

申请日：2014-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Leah Dunbar ,  Yo Chan Son ,  Martin E. Rosalik, Jr. ,  Justin O. Nielsen

IPC: G01D5/14 ,  H03K23/00 ,  G01P13/04 ,  G01D5/245 ,  G01P3/487

CPC classification number: G01P13/045 ,  G01D5/2451 ,  G01P3/487

Abstract: A first counter is incremented when a first rotational speed sensing device detects a falling edge of one of the teeth of a single multi-tooth target wheel, a second counter is incremented when a second rotational speed sensing device detects a falling edge of one of the teeth, and a third counter is incremented when either of the first and second rotational speed sensing devices detects either of a rising edge and a falling edge of one of the teeth. A direction of rotation is determined based upon the third counter and a rotational speed of the rotatable member is determined based upon one of the first and second counters. The rotatable member is indicated to be at zero speed when the rotational speed is less than a threshold speed and the direction of rotation changes between a positive direction and a negative direction.

公开(公告)号：US20160054351A1

公开(公告)日：2016-02-25

申请号：US14560522

申请日：2014-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Leah Dunbar ,  Yo Chan Son ,  Martin E. Rosalik, JR. ,  Justin O. Nielsen

IPC: G01P13/04 ,  G01D5/14

CPC classification number: G01P13/045 ,  G01D5/2451 ,  G01P3/487

Abstract: A first counter is incremented when a first rotational speed sensing device detects a falling edge of one of the teeth of a single multi-tooth target wheel, a second counter is incremented when a second rotational speed sensing device detects a falling edge of one of the teeth, and a third counter is incremented when either of the first and second rotational speed sensing devices detects either of a rising edge and a falling edge of one of the teeth. A direction of rotation is determined based upon the third counter and a rotational speed of the rotatable member is determined based upon one of the first and second counters. The rotatable member is indicated to be at zero speed when the rotational speed is less than a threshold speed and the direction of rotation changes between a positive direction and a negative direction.

Abstract translation: 当第一转速检测装置检测到单个多齿目标车轮的一个齿的下降沿时，第一计数器增加，当第二转速感测装置检测到第一转速感测装置中的一个的下降沿时，第二计数器递增 齿和第三计数器当第一和第二转速感测装置中的任一个检测到其中一个齿的上升沿和下降沿中的任一个时增加。 基于第三计数器确定旋转方向，并且基于第一和第二计数器之一确定可旋转构件的旋转速度。 当旋转速度小于阈值速度并且旋转方向在正方向和负方向之间变化时，可旋转构件被指示为零速度。

公开(公告)号：US20150207444A1

公开(公告)日：2015-07-23

申请号：US14159963

申请日：2014-01-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yo Chan Son ,  Bon Ho Bae ,  Steven E. Schulz ,  Leah Dunbar

IPC: H02P6/16

CPC classification number: H02P6/16 ,  B60L3/0038 ,  B60L50/15 ,  B60L2240/421 ,  B60L2270/145 ,  Y02T10/642 ,  Y02T10/7077 ,  Y02T10/7258

Abstract: A vehicle includes a motor having a rotor shaft, a transmission having a gear set directly or selectively connected to the motor, a resolver circuit, and a controller. The resolver circuit includes a resolver that measures an absolute position of the shaft, and a resolver-to-digital converter (RDC) which receives the absolute position and generates, via a tracking loop, a raw position signal. The controller includes recorded predetermined frequency characteristics of the RDC and method instructions which cause the controller to receive the raw position signal from the RDC and create a lookup table describing position wobble. The controller compensates for the position wobble at all rotational speeds of the rotor shaft by applying the predetermined frequency characteristics to the position wobble to derive a compensated position signal. The controller also uses the compensated position signal to control an operation of the electric motor.

Abstract translation: 车辆包括具有转子轴的电动机，具有直接或选择性地连接到电动机的齿轮组的变速器，旋转变压器电路和控制器。 解算器电路包括测量轴的绝对位置的解算器和接收该绝对位置的分解器 - 数字转换器（RDC），并且经由跟踪环路产生原始位置信号。 控制器包括记录的RDC的预定频率特性和方法指令，使得控制器从RDC接收原始位置信号并创建描述位置摆动的查找表。 控制器通过将预定的频率特性施加到位置摆动来补偿转子轴的所有转速下的位置摆动，以导出补偿位置信号。 控制器还使用补偿位置信号来控制电动机的操作。