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公开(公告)号：US20220178364A1
公开(公告)日：2022-06-09
申请号：US17541200
申请日：2021-12-02
Applicant: MITSUBA Corporation
Inventor： KOTA FUKASHIRO , MIYA YAMADA
Abstract: A motor control device according to the disclosure includes: a current control part, performing current control for rotating a motor from a stop state; a rotation speed calculation part, calculating an actual rotation speed of the motor; an acquisition part, acquiring a target rotation speed of the motor; a speed control part, performing speed control of the motor, so that the actual rotation speed of the motor becomes the target rotation speed; and a correction part, at a time when a current control state is transitioned to a speed control, correcting the target rotation speed based on a relation between the actual rotation speed and the target rotation speed. When the target rotation speed is corrected, the speed control part performs the speed control so that the actual rotation speed becomes the target rotation speed corrected by the correction part.
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公开(公告)号：US20240305173A1
公开(公告)日：2024-09-12
申请号：US18542753
申请日：2023-12-17
Applicant: MITSUBA Corporation , Honda Motor Co., Ltd.
Inventor： MIYA YAMADA , KOTA FUKASHIRO , MASAHIRO FUEKI , KEIICHI MORI , YUJI MINODA
CPC classification number: H02K11/35 , G06K7/0021
Abstract: A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, judging whether or not a timing is to execute a communication between the MCU and the predriver and outputting a communication execution command when the timing is judged to be a timing to execute the communication between the MCU and the predriver; and a communication portion, executing the communication between the MCU and the predriver when the communication execution command is input. The communication timing judgment portion judges a timing that does not overlap with a timing at which noise occurs due to a factor other than the communication between the MCU and the predriver as the timing to execute the communication between the MCU and the predriver.
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公开(公告)号：US20240305231A1
公开(公告)日：2024-09-12
申请号：US18540836
申请日：2023-12-14
Applicant: MITSUBA Corporation
Inventor： MIYA YAMADA , KOTA FUKASHIRO
Abstract: A motor control device includes an MCU and a predriver configuring at least a part of a circuit for controlling driving of a motor. The MCU includes a communication timing judgment portion, outputting a communication verification command when a diagnostic signal including information indicating whether the mechanism or equipment to be controlled by a combination of the MCU and the predriver is in a fail state is input from the predriver to the MCU; a signal content judgment portion, judging whether a content of the diagnostic signal is in the fail state when the communication verification command is input and outputting a communication execution command when the content of the diagnostic signal indicates the fail state; and a communication portion, executing a communication between the MCU and the predriver for reading fail information of the predriver when the communication execution command is input.
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4.发明申请公开(公告)号：US20230075090A1
公开(公告)日：2023-03-09
申请号：US17737007
申请日：2022-05-04
Applicant: MITSUBA Corporation
Inventor： MIYA YAMADA
Abstract: A control system includes: a semiconductor chip, having built therein a processing part, an A/D converter and a pull device circuit; a wiring part, having one end connected to a terminal connected to the A/D converter; and a sensor, connected to the other end of the wiring part and inputting a sensor signal in analog form via the wiring part. The pull device circuit includes a switching element, and has one end connected to ground or a power supply voltage and the other end connected between the A/D converter and the terminal. The processing part includes: a switch control part, controlling the switching element to be in an on or off state; a sensor information generator, generating sensor information based on the sensor signal; and a disconnection detector, detecting disconnection of the wiring part based on output of the A/D converter when the switching element is in the on state.
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