System for controlling spraying of washer fluid of wiper blade

Patent metadata

Field	Value
Publication number	US-2016129888-A1
Application number	US-201514872093-A
Country	US
Kind code	A1
Filing date	Sep 30, 2015
Priority date	Nov 7, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

A system for controlling spraying of washer fluid from a washer nozzle-integrated wiper blade having a wiper motor supplying a driving force for wiping of the wiper blade includes a position sensing plate disposed in the wiper motor and configured to rotate with an output shaft of the wiper motor when the wipe motor operates. The position sensing plate has a plurality of alternating closed periods and open periods. A contact pin is configured to physically come in contact with the position sensing plate in the closed periods and separate from the position sensing plate in the open periods when the wiper motor operates, and transmit signals a indicating whether it comes in contact with or separates from the position sensing plate. A controller controls operation of the wiper motor on the basis of the signals transmitted by the contact pin.

First claim

What is claimed is:

1 . A system for controlling spraying of washer fluid from a washer nozzle-integrated wiper blade having a wiper motor supplying a driving force for wiping of the wiper blade, the system comprising:
a position sensing plate disposed in the wiper motor and configured to rotate with an output shaft of the wiper motor when the wipe motor operates, the position sensing plate having a plurality of alternating closed periods and open periods; a contact pin configured to physically come in contact with the position sensing plate in the closed periods and separate from the position sensing plate in the open periods when the wiper motor operates, and transmit signals indicating whether it comes in contact with or separates from the position sensing plate; and a controller that controls operation of the wiper motor on the basis of the signals transmitted by the contact pin.

2 . The system of claim 1 , wherein the controller operates the washer motor to start spraying of washer fluid when the contact pin separates from the position sensing plate and to stop spraying of the washer fluid when the contact pin comes in contact with the position sensing plate.

3 . The system of claim 1 , wherein the position sensing plate has a first closed period and a second closed period with open periods therebetween, and
the controller operates the washer motor to start spraying washer fluid when the contact pin starts to separate from the first closed period of the position sensing plate after being in contact with the first closed period, and the controller controls the washer motor to stop spraying the washer fluid, when the contact pin comes in contact with the second closed period of the position sensing plate.

4 . The system of claim 1 , wherein the controller operates the washer motor to start spraying of washer fluid when the contact pin separates from the position sensing plate and to stop spraying the washer fluid when a predetermined time passes after the washer fluid starts to be sprayed.

5 . The system of claim 1 , wherein the position sensing plate has a first closed period and a second closed period with open periods therebetween, and
the controller operates the washer motor to start spraying washer fluid when the contact pin starts to separate from the first closed period of the position sensing plate after being in contact with the first closed period, and the controller controls the washer motor to stop spraying of the washer fluid when a predetermined time passes after the washer fluid starts to be sprayed.

6 . The system of claim 5 , wherein the predetermined time is 100 ms.

7 . The system of claim 1 , wherein the position sensing plate includes at least one copper plate.

8 . The system of claim 1 , wherein the controller operates the washer motor to start spraying of washer fluid when the contact pin comes in contact with the position sensing plate and to stop spraying of the washer fluid when the contact pin separates from the position sensing plate.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Hyun Sub
• Oh Young Sub
• Lee Jin Hee
• Kong Nak Kyoung

Classifications

• B60S1/52

  Arrangement of nozzles; {Liquid spreading means}(nozzles per se B05B) · CPC title

• B60S1/481

  the operation of at least part of the liquid supply being controlled by electric means (electrical washing liquid warming-up means B60S1/488) · CPC title

• B60S1/48 Primary

  Liquid supply therefor · CPC title

• B60S1/482 Primary

  combined with the operation of windscreen wipers · CPC title

• B60S1/08

  electrically driven {(conjoint control of windscreen wiper motor and liquid supply of windscreen washer B60S1/482; conjoint control of windscreen wiper motor and means for cleaning parts o parts other than windscreens or front windows B60S1/56, B60S1/58, B60S1/606)} · CPC title