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1. 发明申请

US20220194210A1 WHEEL DRIVE APPARATUS 有权
公开(公告)号：US20220194210A1
公开(公告)日：2022-06-23
申请号：US17692815
申请日：2022-03-11
申请人： DENSO CORPORATION
发明人： Yuki TAKAHASHI
IPC分类号： B60K7/00 , B60K1/02 , H02K7/10 , H02P5/46 , B60L15/20
摘要： In a wheel drive apparatus, a clutch is configured to switch a coupling mode between a first rotating shaft of a first rotating electrical machine and a second rotating shaft of a second rotating electrical machine to any one of (i) a power transmission mode in which power transmission is enabled between the first rotating shaft and the second rotating shaft; and (ii) a power interruption mode in which power transmission is interrupted between the first rotating shaft and the second rotating shaft.

2. 发明授权

US11233469B2 Variable frequency drive motor connection module 有权
公开(公告)号：US11233469B2
公开(公告)日：2022-01-25
申请号：US16803215
申请日：2020-02-27
申请人： Eaton Intelligent Power Limited
发明人： Peter Joseph Fanduzzi , Thomas M. Ruchti , Joseph Uphaus
IPC分类号： H02P1/54 , H02P5/00 , H02P5/46 , H02P5/50
摘要： A system for controlling a plurality of motors includes: a variable frequency drive (VFD) configured to control at least one property of the motors, the VFD having a current interruption rating that is greater than a continuous current rating of all of the plurality of motors combined; a bus electrically connected to the VFD; and a plurality of protection modules, each protection module including: a motor overload device electrically connected to a particular one of the plurality of motors; and a switching relay in series with the motor overload device, the switching relay configured to connect the protection module to and disconnect the protection module from the bus. A state of the switching relay determines whether the protection module is electrically connected to the bus, the VFD is configured to control the state of the switching relay, and the switching relay has a current interruption rating that is less than the continuous current rating of the particular one of the plurality of motors.

3. 发明授权

US11117558B2 Vehicle brake device 有权
公开(公告)号：US11117558B2
公开(公告)日：2021-09-14
申请号：US16645114
申请日：2018-09-28
申请人： ADVICS CO., LTD.
发明人： Ken Kuzuya , Tomotaka Asano , Yasuhito Ishida , Tatsushi Kobayashi , Takayuki Yamamoto
IPC分类号： B60T8/40 , B60T8/174 , B60T8/72 , B60T13/14 , B60T13/20 , H02P5/46
摘要： This vehicle brake device comprises: a simultaneous driving determination section which determines whether it is necessary to simultaneously drive an upstream-side motor and a downstream-side motor; and a PWM control section which, when the determination result by the simultaneous driving determination section is in the affirmative, changes the duty ratio of the PWM signal to be output to the upstream-side motor so as to be smaller than when the determination result by the simultaneous driving determination section is in the negative, and uses PWM control to drive the upstream-side motor.

4. 发明授权

US11025180B2 Variable speed accelerator 有权
公开(公告)号：US11025180B2
公开(公告)日：2021-06-01
申请号：US16093005
申请日：2016-06-15
申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
发明人： Yoshiyuki Okamoto , Masahiro Nakashima
IPC分类号： H02P5/747 , F16H3/72 , H02K7/116 , H02K7/00 , H02P5/46 , H02P6/04
摘要： A variable speed accelerator is provided, including an electric driving device generating a rotational driving force, and a planetary gear transmission device changing the speed of the rotational driving force and transmitting the changed rotation driving force to a driving target. The electric driving device includes: a variable-speed motor having a variable-speed rotor connected to a variable-speed input shaft of the transmission device; and a constant-speed motor having a constant-speed rotor connected to a constant-speed input shaft of the transmission device. The variable-speed rotor and the planetary gear carrier shaft have a shaft insertion hole formed to pass therethrough in the axial direction.

5. 发明申请

US20210006193A1 ROTATING MACHINE POWER CONVERSION DEVICE 有权
公开(公告)号：US20210006193A1
公开(公告)日：2021-01-07
申请号：US16982697
申请日：2018-04-27
申请人： Mitsubishi Electric Corporation
发明人： Takafumi ICHIKAWA , Yoshihiko KIMPARA , Noriyuki WADA , Kotaro NAKANO
IPC分类号： H02P29/028 , H02P5/46 , H02P27/06 , H02H7/122 , H02M1/32 , B60L3/00 , B60L50/51 , H02P23/14 , H02P6/28 , H02K11/33
摘要： A rotating machine power conversion device is obtained which achieves operational continuation in a rotational speed range in which the operational continuation is enabled, even when a single phase of an electrical power conversion device made of switching devices causes a disconnection or turn-off failure. The rotating machine power conversion device comprises: a normality-case/abnormality-case current control device selection device for transferring between a normality-case current control device and an abnormality-case current control device in accordance with a determination result of an abnormality determination device; and an abnormality-case current control device/power conversion halt device selection device, using a rotational speed calculation device, for transferring between the abnormality-case current control device used when a rotational speed is lower than that being prespecified, and the power conversion halt device used when a rotational speed is higher than that being prespecified.

6. 发明授权

US10862417B2 Rotary electric device control device and electric power steering device 有权
公开(公告)号：US10862417B2
公开(公告)日：2020-12-08
申请号：US16405049
申请日：2019-05-07
申请人： DENSO CORPORATION
发明人： Shuji Kuramitsu , Koichi Nakamura , Atsuko Oka , Masaya Taki , Hideki Kabune , Yuki Watanabe , Toshimitsu Sakai , Yosuke Ogi
IPC分类号： H02P5/46 , H02P25/22 , H02P21/22 , H02P5/74
摘要： A rotary electric device control device controls driving of a rotary electric device including a plurality of winding sets. The rotary electric device control device includes: a plurality of drive circuits; and a plurality of control units. The control units include signal output units for outputting control signals to the drive circuits corresponding to the control units, respectively, and communicate with each other. The control units include: one master control unit; and at least one slave control unit. An electric power steering device includes: a rotary electric device control device; the rotary electric device that outputs an assist torque for assisting a steering operation of a steering wheel by a driver; and a power transmission unit that transmits a driving force of the rotary electric device to a drive target.

7. 发明授权

US10862410B2 Multi-motor system 有权
公开(公告)号：US10862410B2
公开(公告)日：2020-12-08
申请号：US16470992
申请日：2017-12-21
申请人： Nidec Corporation
发明人： Tetsuya Tabuchi
IPC分类号： H02P6/04 , H02P5/46
摘要： A multi-motor system includes motor assemblies, each including a motor, a communication circuit to receive a command transmitted from outside, a control circuit to generate a control signal that rotates the motor with a controlled variable that is designated by the command; and a motor driving circuit that causes a current to flow in the motor based on the control signal. The command includes control data indicating the controlled variable of the motor in fixed data length, the controlled variable being expressed at least with an integer, and position-designating data designating a position of the radix point in the control data. The position-designating data is independently determined for each motor assembly.

8. 发明申请

US20200382026A1 SLAVE UNIT AND SERVO DRIVING SYSTEM 审中-公开
公开(公告)号：US20200382026A1
公开(公告)日：2020-12-03
申请号：US16857118
申请日：2020-04-23
申请人： FANUC CORPORATION
发明人： Takehiro YAMAGUCHI
IPC分类号： H02P5/46 , G05B19/414
摘要： To avoid cost increase, delay of response, time, and performance degradation in driving a power source including a plurality of servo motors and/or a servo motor with a plurality of windings. A slave unit drives a power source including a plurality of servo motors and/or a servo motor with a plurality of windings using a plurality of amplifiers on the basis of a command from a high-order controller. The slave unit includes: a storage unit stores servo internal statuses of the respective servo motors and/or the respective windings, judgment data, and resource data; a servo internal status copying judgment unit determines a copying source and a copying destination, and judges whether to copy a servo internal status of the copying source to the copying destination to commonalize therebetween on the basis of the judgment data and the resource data; a servo internal status copying execution unit copies the servo internal status of the copying source to the copying destination; and a servo control unit outputs each of the plurality of servo internal statuses to the respective amplifiers to control driving of the power source.

9. 发明申请

US20200336088A1 MOTOR DRIVER CONTROL SYSTEM FOR CONTROLLING MORE THAN ONE MOTOR 审中-公开
公开(公告)号：US20200336088A1
公开(公告)日：2020-10-22
申请号：US16803212
申请日：2020-02-27
申请人： Eaton Intelligent Power Limited
发明人： Peter Joseph Fanduzzi , Thomas M. Ruchti , Joseph Uphaus
IPC分类号： H02P5/46 , H02P29/024
摘要： A motor driver control system is configured for connection to a plurality of motors, the motor control system includes a motor driver command module, and the motor driver command module is configured to: access information related to one or more operating metrics of the plurality of motors; analyze the information to determine whether a maintenance condition exists in any of the plurality of motors; and if a maintenance condition exists in any of the plurality of motors: prevent electrical power from reaching any of the plurality of motors, identify which one or more of the plurality of motors has the maintenance condition, disconnect the one or more identified motors from the motor driver control system, and restore electrical power to all of the plurality of motors other than the identified motors after disconnecting the one or more identified motors.

10. 发明授权

US10766523B2 Steering device 有权
公开(公告)号：US10766523B2
公开(公告)日：2020-09-08
申请号：US16069048
申请日：2017-01-05
申请人： Hitachi Automotive Systems, Ltd.
发明人： Takahiro Itou , Masaru Yamasaki , Mitsuo Sasaki , Kazuya Yamano
IPC分类号： B62D5/04 , H02P6/04 , H02P5/46 , B62D6/00 , H02P29/024 , H02P6/12
摘要： Provided is a steering device which allows continued safe travel in the event of a fault during automatic steering control. The steering device is equipped with an electric drive device composed of a plurality of systems of electric motors and has an assist control function for assisting a driver in steering and an automatic steering control function for automatically controlling the steering angle of steered wheels on the basis of a steering angle instruction value. In the event a fault occurs in one of the electric motor systems of the electric drive device during control under automatic operation control, a controller in the steering device maintains automatic operation control S36 using the electric motor of a normally operating system not suffering from a fault, and then, upon shifting to assist control S21, the controller sets the output limit value of the electric motor to a fault-time output limit value, which is less than a normal-time output limit value set when all electric motor systems are operating normally.

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