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1. 发明授权

US11560172B2 Motor control device 有权
公开(公告)号：US11560172B2
公开(公告)日：2023-01-24
申请号：US16751619
申请日：2020-01-24
申请人： JTEKT CORPORATION , DENSO CORPORATION
发明人： Satoshi Sugiyama , Yoshihide Kuroda
IPC分类号： B62D5/04 , G06F13/362 , H02P25/22 , H04L67/1097 , H02P27/06
摘要： 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.

2. 发明授权

US11095247B2 Controller for motor 有权
公开(公告)号：US11095247B2
公开(公告)日：2021-08-17
申请号：US16801802
申请日：2020-02-26
申请人： JTEKT CORPORATION , DENSO CORPORATION
发明人： Takahiro Toko , Atsuo Sakai , Ryo Irie , Yoshihide Kuroda
IPC分类号： H02P29/028 , B62D5/00 , B62D5/04 , B62D15/02 , H02P27/06
摘要： 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.

3. 发明申请

US20170117840A1 MOTOR CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE INCLUDING THE SAME 审中-公开
公开(公告)号：US20170117840A1
公开(公告)日：2017-04-27
申请号：US15274840
申请日：2016-09-23
申请人： DENSO CORPORATION
发明人： Haruo Suzuki , Yoshihide Kuroda
IPC分类号： H02P29/024 , B62D5/04 , H02P27/06
CPC分类号： H02P29/026 , B62D5/0463 , B62D5/0481 , H02P27/06 , H02P29/025
摘要： A motor control device for a motor includes: an inverter circuit supplying power of a battery to the motor; an inverter input voltage detector detecting an inverter input voltage; and a controller including a drive controller for the motor and an abnormality determination unit for determining power feeding abnormality. The abnormality determination unit determines the power feeding abnormality when the inverter input voltage is lower than a voltage threshold and a current from the battery to the inverter circuit is in a determinable range. The abnormality determination unit determines, based on a motor current electrically conducted to the motor or a rotational speed of the motor, whether the current is in the determinable range. A determination threshold in accordance with the determinable range is set that the inverter input voltage is equal to or higher than the voltage threshold when the power feeding region is normal.

4. 发明授权

US08941337B2 Motor driving device and electric power steering apparatus including motor driving device 有权
标题翻译：电动机驱动装置和电动助力转向装置，包括电动机驱动装置
公开(公告)号：US08941337B2
公开(公告)日：2015-01-27
申请号：US13965301
申请日：2013-08-13
申请人： Denso Corporation
发明人： Nobuhiko Uryu , Naoki Matsuda , Yoshihide Kuroda
IPC分类号： B60K6/36 , H02K7/10 , H02P27/06 , H02M7/48 , B62D5/04
CPC分类号： H02P27/06 , B62D5/0484 , B62D5/0487 , H02M7/48
摘要： 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.
摘要翻译：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。

5. 发明授权

US08981687B2 Motor control apparatus and electric power steering apparatus using the same 有权
标题翻译：电机控制装置及使用其的电动助力转向装置
公开(公告)号：US08981687B2
公开(公告)日：2015-03-17
申请号：US13888714
申请日：2013-05-07
申请人： Denso Corporation
发明人： Yoshihide Kuroda
IPC分类号： H02P21/00 , H02P21/13 , H02P27/06 , H02P25/22 , H02P27/08 , H02P29/02 , B62D5/04
CPC分类号： H02P27/06 , B62D5/0481 , B62D5/0493 , H02P21/00 , H02P21/13 , H02P25/22 , H02P27/08 , H02P29/0241
摘要： 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.
摘要翻译：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。

6. 发明授权

US10343712B2 Electric power steering system 有权
公开(公告)号：US10343712B2
公开(公告)日：2019-07-09
申请号：US15660732
申请日：2017-07-26
申请人： DENSO CORPORATION
发明人： Yoshihide Kuroda , Haruo Suzuki
IPC分类号： B62D5/04 , B62D3/12
摘要： 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.

7. 发明授权

US10256763B2 Motor control device and electric power steering device including the same 有权
公开(公告)号：US10256763B2
公开(公告)日：2019-04-09
申请号：US15274840
申请日：2016-09-23
申请人： DENSO CORPORATION
发明人： Haruo Suzuki , Yoshihide Kuroda
IPC分类号： H02P1/00 , H02P29/024 , B62D5/04 , H02P27/06
摘要： A motor control device for a motor includes: an inverter circuit supplying power of a battery to the motor; an inverter input voltage detector detecting an inverter input voltage; and a controller including a drive controller for the motor and an abnormality determination unit for determining power feeding abnormality. The abnormality determination unit determines the power feeding abnormality when the inverter input voltage is lower than a voltage threshold and a current from the battery to the inverter circuit is in a determinable range. The abnormality determination unit determines, based on a motor current electrically conducted to the motor or a rotational speed of the motor, whether the current is in the determinable range. A determination threshold in accordance with the determinable range is set that the inverter input voltage is equal to or higher than the voltage threshold when the power feeding region is normal.

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