Electric windshield wiper of automobile and control method thereof

Abstract

The invention relates to an electric windshield wiper of automobile and a control method thereof; the electric windshield wiper of automobile comprises a first servo motor and a first wiper arm; the output of the first servo motor is connected with the first wiper shaft through a first shaft joint; the first wiper shaft is provided with the first wiper arm; the first wiper arm swings along the rotation of the first wiper shaft; the motor shaft of the servo motor is provided with a first position detection device; the first wiper arm is provided with magnetic steel; a magnetic induction element is installed at the corresponding position on the automobile; the first position detection device and the magnetic induction element transmit the detected position signal to a first servo controller; and the first servo controller controls the first servo motor and drives the first wiper arm to swing. The electric windshield wiper has simple structure and low cost, and screen wiper can swing discretionarily between 0 and 180 degrees with the protection function of stopping rotating; the speed can be adjusted without level, and the electric windshield wiper has high reliability and long service life.

Description

Technical field [0001] The invention relates to a wiper and a control method thereof, in particular to an automobile electric wiper and a control method thereof. Background technique [0002] The existing automobile wiper includes a motor, a reducer, a rocker shaft, a four-bar linkage, a wiper arm, etc., and has a complex structure and a large volume. The document with the application number 03256255.1 discloses a wiper that can realize a 180° swing angle, but the structure is complicated; the document with the application number 200620101371.X discloses a pneumatically controlled wiper, although the mechanical structure is simplified, the control structure is complicated , And the speed adjustment of the wiper is inconvenient; the document with the application number 200620053557.2 uses two motors to drive two wipers separately, which simplifies the mechanical structure, but requires two motors, which increases the cost, and the synchronous movement of the two motors is not It ...

AI Technical Summary

Problems solved by technology

[0002] Existing car wipers include motors, reducers, rocker shafts, four-bar linkages, wiper arms, etc., with complex structures and large volumes

The document with the application number 03256255.1 discloses a wiper blade which can realize a swing angle of 180°, but the structure is complex; the document with the application number 200620101371.X discloses a pneumatically controlled wiper blade, although the mechanical structure is simplified, but the control structure is complex , and the speed regulation of the wiper is inconvenient; the document whose application number is 200620053557.2 uses two motors to drive two wipers respectively, which simplifies the mechanical structure, but needs to use two motors, which increases the cost, and the synchronous movement of the two motors does not Easy to guarantee; the document with the application number 200320106137.2 added some protection circuits to realize the "blocking" protection of the wiper, but did not change the mechanical structure of the wiper, and the protection circuit was also complicated

The document with the application number 03270496.8 uses a DC motor as the driving motor of the wiper. The DC motor has brushes, which has a short service life and high noise

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