公开(公告)号：US20130334995A1

公开(公告)日：2013-12-19

申请号：US13888714

申请日：2013-05-07

Applicant: DENSO CORPORATION

Inventor： Yoshihide KURODA

IPC: H02P27/06

CPC classification number: H02P27/06 ,  B62D5/0481 ,  B62D5/0493 ,  H02P21/00 ,  H02P21/13 ,  H02P25/22 ,  H02P27/08 ,  H02P29/0241

Abstract: A motor control apparatus includes an A/D converter, which is a hardware part for converting an analog signal of a sensor to a digital signal, a microcomputer, which is a software part, and a drive circuit, which is a hardware part for driving an inverter to supply electric power to a motor. The microcomputer includes calculation blocks, each of which is a calculation block for individually calculating an output from an input. The microcomputer further executes, in parallel to control calculations, software monitor processing for each calculation block to monitor whether the control calculation is executed normally. The motor control apparatus thus can detect a software abnormality without using a monitoring hardware circuit separately.

Abstract translation: 电动机控制装置包括作为将传感器的模拟信号转换为数字信号的硬件部分的A / D转换器，作为软件部分的微型计算机以及作为驱动的硬件部分的驱动电路 向电动机提供电力的逆变器。 微型计算机包括计算块，每个计算块是用于单独计算来自输入的输出的计算块。 微机进一步与控制计算并行执行每个计算块的软件监视处理，以监视控制计算是否正常执行。 因此，马达控制装置可以分别检测软件异常而不使用监视硬件电路。

公开(公告)号：US20180029635A1

公开(公告)日：2018-02-01

申请号：US15660732

申请日：2017-07-26

Applicant: DENSO CORPORATION

Inventor： Yoshihide KURODA ,  Haruo SUZUKI

IPC: B62D5/04 ,  B62D3/12

CPC classification number: B62D5/0463 ,  B62D3/12 ,  B62D5/046 ,  B62D5/0496

Abstract: In an electric power steering system, a motor outputs, based on an AC voltage controlled by switching elements using a power-supply voltage from a power source, assist torque for assisting a driver's turning effort of a steering member. A voltage monitor monitors the power-supply voltage, and a determiner determines whether the power-supply voltage is lower than an assistive voltage. The assistive voltage is defined as a voltage that enables the motor to output the assist torque. A temperature detector detects a temperature of each switching element. A motor control unit determines whether the temperature of each switching element is lower than a heat-resistant temperature of the corresponding switching element. The motor control unit controls a motor current when it is determined that the power-supply voltage is lower than the assistive voltage, and the temperature of at least one switching element is lower than the heat-resistant temperature.

公开(公告)号：US20200295698A1

公开(公告)日：2020-09-17

申请号：US16801802

申请日：2020-02-26

Applicant: JTEKT CORPORATION ,  DENSO CORPORATION

Inventor： Takahiro TOKO ,  Atsuo SAKAI ,  Ryo IRIE ,  Yoshihide KURODA

IPC: H02P29/028 ,  B62D5/04 ,  B62D15/02

Abstract: A controller for a motor includes a first processing circuit and a second processing circuit. The first processing circuit is configured to execute a first operation amount calculation process, an operation process, and an output process. The first operation amount calculation process is a process of calculating a first operation amount. The operation process is a process of operating a first drive circuit. The second processing circuit is configured to execute a second operation amount calculation process, a first use operation process, a second use operation process, and an initial value setting process. The second operation amount calculation process is a process of calculating a second operation amount. The initial value setting process is a process of setting an initial value of an integral element depending on a value of an integral element of the first operation amount calculation process.

公开(公告)号：US20200255058A1

公开(公告)日：2020-08-13

申请号：US16751619

申请日：2020-01-24

Applicant: DENSO CORPORATION ,  JTEKT CORPORATION

Inventor： Satoshi SUGIYAMA ,  Yoshihide KURODA

IPC: B62D5/04 ,  G06F13/362 ,  H02P25/22

Abstract: A motor control device drives a motor based on a vehicle signal including drive assist information and performs vehicle control. The motor control device includes: a first controller and a second controller that perform a calculation operation concerning drive control over the motor. A first microcomputer corresponds to a calculation portion of the first controller. A second microcomputer corresponds to a calculation portion of the second controller. The first microcomputer and the second microcomputer mutually transmit and receive operation results by inter-microcomputer communication, or the first microcomputer unilaterally transmits an operation result from the first microcomputer by the inter-microcomputer communication. The first microcomputer and the second microcomputer synchronize timings to start and end control by performing at least one of three types of arbitration processes including: an AND-start arbitration process; an OR-start arbitration process; and a forced arbitration process.

公开(公告)号：US20140055059A1

公开(公告)日：2014-02-27

申请号：US13965301

申请日：2013-08-13

Applicant: DENSO CORPORATION

Inventor： Nobuhiko URYU ,  Naoki MATSUDA ,  Yoshihide KURODA

IPC: H02P27/06

CPC classification number: H02P27/06 ,  B62D5/0484 ,  B62D5/0487 ,  H02M7/48

Abstract: In a motor driving device, a first relay portion is connected between a power source and an inverter portion, a second relay portion is connected between the first relay portion and the inverter portion, and a motor relay portion is connected between the inverter portion and a winding group of a motor. Inverter pre-driver circuits respectively drive switching elements of the inverter portion. A first pre-driver circuit drives the first relay portion. A second pre-driver circuit drives the second relay portion and the motor relay portion. A controller controls driving of the inverter portion, the first relay portion, the second relay portion, and the motor relay portion, and detects a failure of the first relay portion, the second relay portion, and the motor relay portion.

Abstract translation: 在电动机驱动装置中，第一继电器部分连接在电源和逆变器部分之间，第二继电器部分连接在第一继电器部分和逆变器部分之间，并且电动机中继部分连接在逆变器部分和逆变器部分之间 绕组组电机。 逆变器预驱动器电路分别驱动逆变器部分的开关元件。 第一预驱动器电路驱动第一继电器部分。 第二预驱动器电路驱动第二继电器部分和马达继电器部分。 控制器控制逆变器部分，第一继电器部分，第二继电器部分和电动机中继部分的驱动，并且检测第一继电器部分，第二继电器部分和电动机中继部分的故障。