WIPER DEVICE FOR VEHICLE

To provide a wiper device for vehicle, capable of suppressing magnetic sound generated from a wiper motor.SOLUTION: A microcomputer 58 calculates a rotational speed of an output shaft 32 from a change in a rotational angle of an output shaft 32 of a wiper motor 18 detected by a rotational angle sens...

Full description

Saved in:
Bibliographic Details
Main Authors OKADA SHINICHI, KOIDE KEISUKE, ITO YASUHIDE
Format Patent
LanguageEnglish
Japanese
Published 10.01.2019
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PERFORMING OPERATIONS
SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
TRANSPORTING
VEHICLES IN GENERAL
Online AccessGet full text

Cover

More Information
Summary:To provide a wiper device for vehicle, capable of suppressing magnetic sound generated from a wiper motor.SOLUTION: A microcomputer 58 calculates a rotational speed of an output shaft 32 from a change in a rotational angle of an output shaft 32 of a wiper motor 18 detected by a rotational angle sensor 54 and controls a drive circuit 56 to generate electric power to be supplied to the wiper motor 18 by any one drive system of a sine wave drive system, a trapezoid wave drive system and a rectangular wave drive system according to the calculated rotational speed.SELECTED DRAWING: Figure 1 【課題】ワイパモータから発生する磁気音を低減する車両用ワイパ装置を提供する。【解決手段】マイクロコンピュータ５８は、回転角度センサ５４で検出したワイパモータ１８の出力軸３２の回転角度の変化から出力軸３２の回転速度を算出し、算出した回転速度に応じて、正弦波駆動方式、台形波駆動方式及び矩形波駆動方式のいずれかの駆動方式でワイパモータ１８に供給する電力を生成するように駆動回路５６を制御する。【選択図】図１
Bibliography:Application Number: JP20170120334