公开(公告)号：US20160056745A1

公开(公告)日：2016-02-25

申请号：US14827563

申请日：2015-08-17

Applicant: DENSO CORPORATION

Inventor： Hiroyasu Ootake ,  Nobuyori Nakajima ,  Takafumi Satou

IPC: H02P21/14

CPC classification number: H02P21/14 ,  H02P21/05

Abstract: A rotary electric machine control apparatus controlling drive of a rotary electric machine includes a pre-limit d-axis voltage arithmetic portion calculating a pre-limit d-axis voltage command value; a pre-limit q-axis voltage arithmetic portion calculating a pre-limit q-axis voltage command value; a d-axis limit portion calculating a d-axis voltage command value; and a q-axis limit portion calculating a q-axis voltage command value. When an absolute value of the pre-limit q-axis voltage command value is greater than an absolute value of a second limit value, and an absolute value of a previous q-axis voltage command value is equal to or greater than the absolute value of the second limit value and is equal to or less than an absolute value of a first limit value, the q-axis limit portion determines a previous q-axis voltage command value as the q-axis voltage command value.

Abstract translation: 控制旋转电机的驱动的旋转电机控制装置包括计算预限制d轴电压指令值的预限制d轴电压运算部， 计算预限制的q轴电压指令值的预限制q轴电压运算部; 计算d轴电压指令值的d轴极限部分; 以及q轴限制部，计算q轴电压指令值。 当预限制q轴电压指令值的绝对值大于第二限制值的绝对值，并且先前的q轴电压指令值的绝对值等于或大于 第二限制值，并且等于或小于第一限制值的绝对值，则q轴极限部分将先前的q轴电压指令值确定为q轴电压指令值。

公开(公告)号：US09461575B2

公开(公告)日：2016-10-04

申请号：US14827563

申请日：2015-08-17

Applicant: DENSO CORPORATION

Inventor： Hiroyasu Ootake ,  Nobuyori Nakajima ,  Takafumi Satou

IPC: H02P21/00 ,  H02P21/14 ,  H02P21/05

CPC classification number: H02P21/14 ,  H02P21/05

Abstract: A rotary electric machine control apparatus controlling drive of a rotary electric machine includes a pre-limit d-axis voltage arithmetic portion calculating a pre-limit d-axis voltage command value; a pre-limit q-axis voltage arithmetic portion calculating a pre-limit q-axis voltage command value; a d-axis limit portion calculating a d-axis voltage command value; and a q-axis limit portion calculating a q-axis voltage command value. When an absolute value of the pre-limit q-axis voltage command value is greater than an absolute value of a second limit value, and an absolute value of a previous q-axis voltage command value is equal to or greater than the absolute value of the second limit value and is equal to or less than an absolute value of a first limit value, the q-axis limit portion determines a previous q-axis voltage command value as the q-axis voltage command value.

Abstract translation: 控制旋转电机的驱动的旋转电机控制装置包括计算预限制d轴电压指令值的预限制d轴电压运算部， 计算预限制的q轴电压指令值的预限制q轴电压运算部; 计算d轴电压指令值的d轴极限部分; 以及q轴限制部，计算q轴电压指令值。 当预限制q轴电压指令值的绝对值大于第二限制值的绝对值，并且先前的q轴电压指令值的绝对值等于或大于 第二限制值，并且等于或小于第一限制值的绝对值，则q轴极限部分将先前的q轴电压指令值确定为q轴电压指令值。

公开(公告)号：US09791298B2

公开(公告)日：2017-10-17

申请号：US14990671

申请日：2016-01-07

Applicant: DENSO CORPORATION

Inventor： Yuuta Kadoike ,  Shuhei Miyachi ,  Takafumi Satou

IPC: G01B7/00 ,  G01B7/30 ,  G01D5/20 ,  G01B21/04

CPC classification number: G01D5/20 ,  G01B7/30 ,  G01B21/045

Abstract: A rotation angle detector has a rotation angle sensor and a microcomputer, where the sensor detects a change of a magnetic field of a magnet that rotates with a shaft. The microcomputer has a first corrector for correcting a pre-correction mechanical angle, based on a first correction value that corrects an error due to an assembly process for assembling the magnet and the sensor, and a second corrector for correcting the pre-correction mechanical angle based on a second correction value that corrects an error due to a spill magnetic flux that is generated by a supply of an electric current to a winding wire. In such configuration, the rotation angle detector may correct the error due to the spill magnetic flux, thereby enabling an accurate detection of a mechanical angle.

公开(公告)号：US09548688B2

公开(公告)日：2017-01-17

申请号：US14974233

申请日：2015-12-18

Applicant: DENSO CORPORATION

Inventor： Takafumi Satou ,  Nobuyori Nakajima ,  Haruo Suzuki

IPC: H02P21/00

CPC classification number: H02P6/28 ,  H02P21/22

Abstract: A motor control apparatus operates a power conversion circuit connected between a direct current power source and a motor, which performs mutual conversion between power at the direct current power source and power at the motor in response to a powering operation and a regenerative operation carried out by the motor. The motor control apparatus includes: a voltage command calculator that calculates a voltage command to the power conversion circuit; a suppression gain calculator that calculates a suppression gain such that an absolute value of an estimation value of a power source current or an absolute value of a detection value of the power source current is not more than a target value; and a voltage command suppressor that suppresses a voltage command by multiplying the suppression gain to the voltage command calculated by the voltage command calculator. Additionally, the suppression gain is within a range of 0 to 1.

Abstract translation: 电动机控制装置操作连接在直流电源和电动机之间的电力转换电路，其在直流电源上进行功率与电动机之间的功率的相互转换，并且响应于供电操作和再生操作 电机。 电动机控制装置包括：电压指令计算器，计算对电力转换电路的电压指令; 抑制增益计算器，其计算抑制增益，使得电源电流的估计值的绝对值或电源电流的检测值的绝对值不大于目标值; 以及电压指令抑制器，其通过将抑制增益乘以由电压指令计算器计算出的电压指令来抑制电压指令。 此外，抑制增益在0至1的范围内。

公开(公告)号：US20160202087A1

公开(公告)日：2016-07-14

申请号：US14990671

申请日：2016-01-07

Applicant: DENSO CORPORATION

Inventor： Yuuta Kadoike ,  Shuhei Miyachi ,  Takafumi Satou

IPC: G01D5/20 ,  G01B7/30

CPC classification number: G01D5/20 ,  G01B7/30 ,  G01B21/045

Abstract: A rotation angle detector has a rotation angle sensor and a microcomputer, where the sensor detects a change of a magnetic field of a magnet that rotates with a shaft. The microcomputer has a first corrector for correcting a pre-correction mechanical angle, based on a first correction value that corrects an error due to an assembly process for assembling the magnet and the sensor, and a second corrector for correcting the pre-correction mechanical angle based on a second correction value that corrects an error due to a spill magnetic flux that is generated by a supply of an electric current to a winding wire. In such configuration, the rotation angle detector may correct the error due to the spill magnetic flux, thereby enabling an accurate detection of a mechanical angle.

Abstract translation: 旋转角度检测器具有旋转角度传感器和微型计算机，其中传感器检测与轴一起旋转的磁体的磁场的变化。 微型计算机具有第一校正器，用于基于校正由于用于组装磁体和传感器的组装过程导致的误差的第一校正值和用于校正预校正机械角度的第二校正器来校正预校正机械角度 基于第二校正值，其校正由于通过向绕组线提供电流而产生的溢出磁通量的误差。 在这种构造中，旋转角度检测器可以校正由于溢出磁通量引起的误差，从而能够精确地检测机械角度。

公开(公告)号：US20160181954A1

公开(公告)日：2016-06-23

申请号：US14974233

申请日：2015-12-18

Applicant: DENSO CORPORATION

Inventor： Takafumi Satou ,  Nobuyori Nakajima ,  Haruo Suzuki

IPC: H02P6/00 ,  H02P21/00

CPC classification number: H02P6/28 ,  H02P21/22

Abstract: A motor control apparatus operates a power conversion circuit connected between a direct current power source and a motor, which performs mutual conversion between power at the direct current power source and power at the motor in response to a powering operation and a regenerative operation carried out by the motor. The motor control apparatus includes: a voltage command calculator that calculates a voltage command to the power conversion circuit; a suppression gain calculator that calculates a suppression gain such that an absolute value of an estimation value of a power source current or an absolute value of a detection value of the power source current is not more than a target value; and a voltage command suppressor that suppresses a voltage command by multiplying the suppression gain to the voltage command calculated by the voltage command calculator. Additionally, the suppression gain is within a range of 0 to 1.

Abstract translation: 电动机控制装置操作连接在直流电源和电动机之间的电力转换电路，其在直流电源上进行功率与电动机之间的功率的相互转换，并且响应于供电操作和再生操作 电机。 电动机控制装置包括：电压指令计算器，计算对电力转换电路的电压指令; 抑制增益计算器，其计算抑制增益，使得电源电流的估计值的绝对值或电源电流的检测值的绝对值不大于目标值; 以及电压指令抑制器，其通过将抑制增益乘以由电压指令计算器计算出的电压指令来抑制电压指令。 此外，抑制增益在0至1的范围内。

公开(公告)号：US09350286B2

公开(公告)日：2016-05-24

申请号：US14202777

申请日：2014-03-10

Applicant: DENSO CORPORATION

Inventor： Takafumi Satou ,  Takashi Suzuki

IPC: H02P1/26 ,  H02P25/22

CPC classification number: H02P25/22 ,  H02P29/032

Abstract: A power converter is for a rotating electrical machine including first and second winding sets, each of which has coils corresponding to phases of the rotating electrical machine. In the power converter, a first inverter energizes the first winding set, a second inverter energizes the second winding set, a current sensor detects a phase current flowing through each coil, and a control section drives the first and second inverters respectively based on first and second voltage command signals. The first inverter and the first winding set form a first system. The second inverter and the second winding set form a second system. The control section calculates the first and second voltage command signals so that average voltages applied to the first and second winding sets can be different from each other. The failure detector detects whether a short-circuit occurs between the first and second systems based on each phase current.

Abstract translation: 电力转换器是用于包括第一和第二绕组的旋转电机，每个绕组具有对应于旋转电机的相位的线圈。 在功率转换器中，第一变换器使第一绕组组通电，第二变换器对第二绕组组通电，电流传感器检测流过每个线圈的相电流，并且控制部分分别基于第一和第二绕组组驱动第一和第二逆变器， 第二电压指令信号。 第一变频器和第一绕组组形成第一系统。 第二逆变器和第二绕组组形成第二系统。 控制部分计算第一和第二电压指令信号，使得施加到第一和第二绕组的平均电压可以彼此不同。 故障检测器基于每个相电流检测第一和第二系统之间是否发生短路。

公开(公告)号：US08499885B1

公开(公告)日：2013-08-06

申请号：US13766812

申请日：2013-02-14

Applicant: Denso Corporation

Inventor： Takafumi Satou ,  Jiro Hayashi

IPC: B62D5/04

CPC classification number: H02P6/12 ,  B62D5/0409 ,  B62D5/0484 ,  B62D5/0487 ,  H02H7/1227 ,  H02P3/02 ,  H02P29/0241

Abstract: A power transducer failure detection device detects a failure on a power transducer, making a power transducer control device stop driving the power transducer. A first switching control device turns off a first power supply relay of a power supply source switching device and turns on a second power supply relay of the power supply source switching device. While the power transducer stops driving, a motor may rotate due to an external force to generate a regenerative voltage. The regenerative voltage is then regenerated in a battery through a route from the power transducer via the second power supply relay being turned on and a parasitic diode of the first power supply relay. This can protect elements such as switching elements and a smoothing capacitor of the power transducer against a regenerative voltage and prevent the elements from being destroyed or reducing the useful life due to overvoltage.

Abstract translation: 功率传感器故障检测装置检测功率传感器的故障，使功率传感器控制装置停止驱动功率传感器。 第一切换控制装置关闭电源切换装置的第一电源继电器，接通电源切换装置的第二电源继电器。 当功率传感器停止驱动时，电机可能由于外力而旋转，以产生再生电压。 然后，再生电压通过来自功率转换器的路径经由导通的第二电源继电器和第一电源继电器的寄生二极管在电池中再生。 这可以保护诸如功率转换器的开关元件和平滑电容器的元件抵抗再生电压，并且防止元件被破坏或由于过电压而降低使用寿命。