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1. 发明申请

US20180358912A1 MOTOR DRIVE APPARATUS AND MOTOR DRIVE APPARATUS CONTROL METHOD 审中-公开
公开(公告)号：US20180358912A1
公开(公告)日：2018-12-13
申请号：US15776840
申请日：2016-12-01
申请人： Mitsuba Corporation
发明人： Tamotsu Iwazaki , Toru Furusawa , Takashi Hoshino , Tomofumi Kobayashi
IPC分类号： H02P6/16 , H02P27/08 , H02M7/5387 , H02P6/26 , H03K17/16 , H03K7/08 , H03K17/687 , H02K29/08
CPC分类号： H02P6/16 , H02K29/08 , H02M7/53871 , H02P6/26 , H02P27/085 , H03K7/08 , H03K17/163 , H03K17/6872
摘要： Based on an output signal, among a plurality of switching elements, an element control part outputs a PWM signal having a maximum duty ratio to a pair of switching elements that drive a first coil among a plurality of coils to a high level, outputs a PWM signal having a minimum duty ratio to a pair of switching elements that are connected to each other in series and that drive a second coil among the plurality of coils to a low level, and outputs a PWM signal having a medium duty ratio between the maximum duty ratio of the PWM signal and the minimum duty ratio of the PWM signal to a pair of switching elements that are connected to each other in series and that drive a third coil among the plurality of coils.

2. 发明申请

US20160344273A1 ELECTRIC MOTOR 审中-公开
标题翻译：电动马达
公开(公告)号：US20160344273A1
公开(公告)日：2016-11-24
申请号：US15112537
申请日：2015-03-05
申请人： MITSUBA CORPORATION
发明人： Natsumi Tamura , Hiroto Tanaka , Teppei Tokizaki , Satoshi Tamura
IPC分类号： H02K23/38 , H02K1/24 , H02K1/17 , H02K7/10 , H02K3/12 , H02K3/28 , H02K13/00 , H02K7/08 , H02K1/26 , H02K3/18
CPC分类号： H02K23/38 , H02K1/17 , H02K1/24 , H02K1/26 , H02K3/12 , H02K3/18 , H02K3/28 , H02K7/08 , H02K7/10 , H02K7/1166 , H02K13/006 , H02K23/26 , H02K2213/03
摘要： In a 4-pole, 6-slot, 18-segment electric motor, one forward winding coil (91) and two reverse winding coils (92, 93) are wound on each tooth (12). When the forward winding coils are formed of coils corresponding to a U phase, a V phase, and a W phase and the reverse winding coils are formed of coils corresponding to a “−U” phase, a “−V” phase, and a “−W” phase, the coils, which correspond to a U phase, a “−W” phase, a “−W” phase, a V phase, a “−U” phase, a “−U” phase, a W phase, a “−V” phase, and a “−V” phase, are electrically connected in this order between the adjacent segments. When the number of turns of the coils (91) corresponding to a U phase, a V phase, and a W phase is denoted by T1, the number of turns of the coils (92), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and first come into sliding contact with a brush, is denoted by T2, and the number of turns of the coils (93), which correspond to a “−U” phase, a “−V” phase, and a “−W” phase and later come into sliding contact with the brush, is denoted by T3, “T2>T1>T3” is satisfied.
摘要翻译：在4极6槽18段电动机中，在每个齿（12）上缠绕有一个正向绕组线圈（91）和两个反向绕组线圈（92,93）。当正向绕组线圈由对应于U相，V相和W相的线圈形成时，反向绕组线圈由对应于“-U”相位的线圈，“-V”相位和 “-W”相位，对应于U相，“-W”相，“-W”相，V相，“-U”相，“-U”相，W相的线圈相位，“-V”相位和“-V”相位在相邻段之间以这种顺序电连接。当对应于U相，V相和W相的线圈（91）的匝数由T1表示时，与“-U”相对应的线圈（92）的匝数，“-V”相位和“-W”相位，并且首先与电刷滑动接触，由T2表示，并且对应于“-U”的线圈（93）的匝数相位，“-V”相位和“-W”相位，随后与电刷滑动接触，由T3表示“T2> T1> T3”。

3. 发明申请

US20230075090A1 CONTROL SYSTEM, DISCONNECTION DETECTION METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权
公开(公告)号：US20230075090A1
公开(公告)日：2023-03-09
申请号：US17737007
申请日：2022-05-04
申请人： MITSUBA Corporation
发明人： MIYA YAMADA
IPC分类号： H03M1/10 , H03M1/00
摘要： 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.

4. 发明申请

US20220393630A1 MOTOR CONTROL DEVICE, MOTOR UNIT, AND MOTOR CONTROL METHOD 有权
公开(公告)号：US20220393630A1
公开(公告)日：2022-12-08
申请号：US17774860
申请日：2021-04-28
申请人： MITSUBA Corporation
发明人： RYO OHORI , TAKASHI TAI
IPC分类号： H02P23/14 , H02P25/03
摘要： A motor control device includes: a plurality of sensors detecting a rotation position of a rotor and outputting a position detection signal; a rotational speed determination part determining whether a rotational speed of a brushless motor is equal to or less than a predetermined threshold value based on the position detection signal; and a motor control part. An energization control part included in the motor control part uses, between a first mode and a second mode, different sensor signals serving as a trigger for an energization timing of each phase. In the first mode, an energization timing to a second phase is advanced relative to a timing at which the position detection signal of a first sensor turns on. In the second mode, an energization timing to the second phase is retarded relative to a timing at which the position detection signal of the first sensor turns on.

5. 发明授权

US11411461B2 Motor device having a grommet member 有权
公开(公告)号：US11411461B2
公开(公告)日：2022-08-09
申请号：US16644169
申请日：2018-01-05
申请人： MITSUBA Corporation
发明人： Masashi Suto , Naoki Ogata
IPC分类号： H02K5/22 , H02K7/116 , H01R13/52
摘要： A motor device is provided. A grommet member (80) is equipped with a pair of motor-side lip seals (82a1, 82a2) which elastically deform in the insertion direction of an external connector (CN) into a connector member (60), and are adhered to a connector cover part (71) (contact surface 70a) of the cover member (70); hence, it is possible to configure in a manner such that the mounting direction of the grommet member (80) onto a gear case (31), and the adhesion direction of the pair of motor-side lip seals (82a1, 82a2) to the cover member (70), or in other words, the direction in which sealing properties increase, are the same direction.

6. 发明申请

US20220243640A1 FAN SHROUD AND BLOWER DEVICE 有权
公开(公告)号：US20220243640A1
公开(公告)日：2022-08-04
申请号：US17585565
申请日：2022-01-27
申请人： MITSUBA Corporation
发明人： RYO NONAKA , HIDETAKE OTA
IPC分类号： F01P1/06 , B60H1/00 , F01P5/06 , F04D29/54 , F04D19/00
摘要： A fan shroud and a blower device are provided. The fan shroud includes a shroud wall surface and a plurality of ventilation openings. The shroud wall surface extends around a fan along a radial direction orthogonal to a rotation axis. The plurality of ventilation openings are formed through the shroud wall surface in a thickness direction of the shroud wall surface to allow passing of wind generated by a fan motor. A width of a wall surface side opening on a downstream side of the wind in the ventilation opening is smaller than a width of a lateral wall side opening on an upstream side of the wind in the ventilation opening.

7. 发明授权

US11230270B2 Wiper arm 有权
公开(公告)号：US11230270B2
公开(公告)日：2022-01-25
申请号：US16977459
申请日：2019-02-20
申请人： MITSUBA Corporation , Mazda Motor Corporation
发明人： Nobukazu Managi , Keisuke Kondou , Ippei Yamauchi
IPC分类号： B60S1/52
摘要： Provided is a windshield wiper arm. This windshield wiper arm includes: an arm head (10); a shank; an arm piece connected to the windshield wiper blade; a washer nozzle which sprays a washer liquid onto the wiping surface; and a hose. The hose is divided into a first hose disposed along the arm head and a second hose disposed within the vehicle body. The first hose and the second hose are connected in a manner that washer liquid can flow from one hose to the other via a joint member (70). The arm head (10) has an opening part (10A) which opens on a fastening part 11 side, and the joint member (70) is mounted to the arm head (10) in a manner that the part of the joint member (70) that connects with the second hose penetrates the opening part (10A).

8. 发明授权

US11220242B2 Windshield wiper arm 有权
公开(公告)号：US11220242B2
公开(公告)日：2022-01-11
申请号：US16962513
申请日：2019-02-22
申请人： MITSUBA Corporation
发明人： Nobukazu Managi
IPC分类号： B60S1/52
摘要： A windshield wiper arm includes: an arm piece to which a wiper blade wiping a wiping surface is connected; a hose supplied with washer fluid; and a washer nozzle connected to the hose and mounted on the arm piece on the base end side with respect to a portion connected to the wiper blade. The washer nozzle includes: a first flowpath extending in a longitudinal direction; a second flowpath connected to the first flowpath and extending in a wiping direction which intersects the longitudinal direction, and in which the wiper blade can move when wiping the wiping surface; a third flowpath connected to the second flowpath and extending in a vertical direction which is along a normal line of the wiping surface while intersecting the longitudinal direction and the wiping direction; and a fitting groove into which the arm piece is fitted and which extends along the longitudinal direction.

9. 发明申请

US20210363810A1 VEHICULAR OPENING/CLOSING BODY CONTROL DEVICE 有权
公开(公告)号：US20210363810A1
公开(公告)日：2021-11-25
申请号：US17049338
申请日：2019-04-12
申请人： MITSUBA Corporation
发明人： Yoshiaki ISOBE
IPC分类号： E05F15/70 , E05F15/60
摘要： Disclosed is a vehicular opening/closing body control device including: a positional information acquisition; a storage part; and a motor control part. The motor control part includes: a drive start part that operates the motor based on the positional information so that the opening/closing body in a stopped state is moved; and a drive part that performs feedback control of the motor based on the positional information and the target value so that the movement speed of the opening/closing body which has been started to move by the drive start part reaches the target value. The drive start part generates a first output in the motor when the opening/closing body is at a first position, and generates a second output smaller that the first output in the motor when the opening/closing body is at a second position closer to a fully closed position than the first position.

10. 发明申请

US20210336568A1 MOTOR CONTROL APPARATUS AND MOTOR CONTROL APPARATUS CONTROL METHOD 有权
公开(公告)号：US20210336568A1
公开(公告)日：2021-10-28
申请号：US16479655
申请日：2018-02-02
申请人： Mitsuba Corporation
发明人： Takeshi Ikeda
IPC分类号： H02P6/16
摘要： A motor control apparatus that is configured to perform a power distribution control on three-phase coils of a brushless motor and that is configured to perform a rotation control of a rotor includes: a plurality of switching elements that are arranged to be capable of switching a current which is allowed to flow through the coils; a plurality of sensors that are configured to detect a rotation position of the rotor; and a control part that is configured to output a drive signal for controlling a power distribution pattern of each switching element according to a position detection signal which is obtained by correcting a position detection signal as an output of the plurality of sensors by using a predetermined correction coefficient, wherein the control part is configured to add a correction angle that corresponds to a difference between the position detection signals before and after correction of a predetermined sensor among the plurality of sensors to a setting value of an advance angle of the power distribution control and select an output pattern that includes a plurality of power distribution patterns and that is used when selecting the power distribution pattern, from a plurality of different output patterns in accordance with the advance angle to which the correction angle is added and a power distribution angle of the power distribution control.

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