Electric windshield wiper of automobile and control method thereof

A wiper and electric technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of inconvenient speed adjustment, complex structure and loud noise of wiper

Inactive Publication Date: 2010-11-03
HANGZHOU SES MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 dr

Method used

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  • Electric windshield wiper of automobile and control method thereof
  • Electric windshield wiper of automobile and control method thereof
  • Electric windshield wiper of automobile and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0119] Example one

[0120] Refer to the attached drawings, figure 1 It is a schematic diagram of the structure of the electric wiper for an automobile in the first embodiment of the present invention. Such as figure 1 As shown, the automotive electric wiper includes: a first servo motor 1a and a first wiper arm 2a, the output of the first servo motor 1a is connected to the first wiper shaft 4a through a first coupling 3a, and the first wiper shaft A first wiper arm 2a is provided on 4a, and the first wiper arm 2a swings with the rotation of the first wiper shaft 4a.

[0121] A first position detection device 5a is provided on the motor shaft of the servo motor 1a; a magnet 6 is provided on the first wiper arm 2a, and a magnetic induction element is arranged at the corresponding position of the car. In the present invention, the magnetic induction element adopts Hall induction Element 7, the first position detection device 5a and the Hall sensor element 7 output the detected posit...

Example Embodiment

[0126] Example two

[0127] Such as figure 2 As shown, the difference from the first embodiment is that the electric wiper also includes a reducer. The servo controller 8a controls the operation of the first servo motor 1a. The motor is connected to the worm 11 through the first coupling 3a to drive the worm 11 to rotate, and the worm 11 drives the worm wheel 12 to rotate. The worm shaft 13 communicates with the first through the second coupling 3b. The wiper shaft 4a is connected to drive the first wiper shaft 4a to rotate. The reducer used here is a worm gear reducer. Cylindrical gear reducers, bevel gear reducers, planetary gear reducers, etc. can also be used. The electric wiper is a single wiper structure wiper with simple structure. The servo controller can control the wiper to achieve any swing angle from 0° to 180°, so it can not only replace the existing single wiper structure wiper, but also replace the existing double wiper. Wiper blades for scraping structure.

Example Embodiment

[0128] Example three

[0129] Such as image 3 As shown, the difference from the first embodiment is that a first crank 14a is sleeved on the first wiper shaft 4a of the electric wiper, the first crank 14a is connected to the second crank 14b through the synchronization rod 15, and the second crank 14b is provided on the There is a second wiper shaft 4b, and the second wiper shaft 4b rotates and drives the second wiper arm 2b fixed on it to swing. There is no reducer between the motor and the wiper shaft of the automobile wiper, and they are directly connected through a coupling. This can simplify the structure of the wiper, but requires the motor to provide greater torque.

[0130] In this embodiment, the method for controlling the electric wiper of an automobile includes the following steps:

[0131] Step 1: The first wiper arm 2a swings in the direction of the Hall sensor element 7 driven by the servo motor 1a. Set the rotation direction of the servo motor to the forward directi...

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PUM

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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 ...

Claims

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Application Information

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IPC IPC(8): B60S1/08B60S1/16G01D5/249G01B7/30G05B19/042
CPCB60S1/08B60S1/0814B60S1/163
Inventor 郝双晖郝明晖
Owner HANGZHOU SES MACHINERY
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