Invention Grant
- Patent Title: Brushless motor, wiper apparatus, motor apparatus and control method for motor apparatus
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Application No.: US15958095Application Date: 2018-04-20
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Publication No.: US10594233B2Publication Date: 2020-03-17
- Inventor: Tomohiko Annaka , Hiroto Tanaka , Naoki Kojima , Toru Furusawa , Tomofumi Kobayashi
- Applicant: Mitsuba Corporation
- Applicant Address: JP Kiryu-shi, Gunma
- Assignee: Mitsuba Corporation
- Current Assignee: Mitsuba Corporation
- Current Assignee Address: JP Kiryu-shi, Gunma
- Agency: McCormick, Paulding & Huber PLLC
- Priority: JP2013-267084 20131225; JP2013-267085 20131225
- Main IPC: H02P7/06
- IPC: H02P7/06 ; H02P6/10 ; B60S1/08 ; B60S1/16 ; H02P27/08

Abstract:
A brushless motor (18) which supplies currents to coils (U1, U2, V1, V2, W1, and W2) and rotates a rotor (27), the brushless motor comprising a control apparatus (37) which switches and selectively executes: first energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at first timing, and to continue the energization for a first period to control the rotation number of the rotor (27); and second energization control to start energization to the coils (U1, U2, V1, V2, W1, and W2) at second timing advanced by an electric angle with respect to the first timing, and to continue the energization for a second period longer than the first period to control the rotation number of the rotor (27).
Public/Granted literature
- US20180323733A1 BRUSHLESS MOTOR, WIPER APPARATUS, MOTOR APPARATUS AND CONTROL METHOD FOR MOTOR APPARATUS Public/Granted day:2018-11-08
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