Control systems and methods for customizing windshield wiper speed settings

• US 9,193,333 B2
• Filed: 09/14/2012
• Issued: 11/24/2015
• Est. Priority Date: 09/14/2012
• Status: Active Grant

• Current Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Original Assignee: Toyota Motor Engineering & Manufacturing North America Incorporated (Toyota Motor Corporation)
• Inventors: Kurtovic, Kenan
• Primary Examiner(s): Mawari, Redhwan K
• Assistant Examiner(s): Torchinsky, Edward
• Application Number:
  US13/615,965
• Publication Number:
  US 20140081514A1
• Time in Patent Office: 1,166 Days
• US Class Current: 1/1
• CPC Class Codes: B60S 1/08 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

Abstract

A method of user-selecting a custom wiping rate using a windshield wiper control system is provided. The method includes activating a wiper motor connected to a windshield wiper by moving control stalk to a first switching position providing the windshield wiper with a first wiping rate. The control stalk is moved repeatedly to a second switching position, wherein successive movements of the control stalk to the second switching position define one or more tap intervals. The one or more tap intervals are determined using an analyzing and control system. Speed of the wiper motor is changed to set a second wiping rate different from the first wiping rate using the analyzing and control system based on the one or more tap intervals.

Claims

1. A method of user-selecting a custom wiping rate using a windshield wiper control system, comprising:

activating a wiper motor connected to a windshield wiper by moving control stalk to a first switching position providing the windshield wiper with a first wiping rate;

repeatedly moving the control stalk in a forward direction to a second switching position, wherein successive movements of the control stalk in the forward direction to the second switching position define multiple tap intervals;

detecting the successive movements of the control stalk in the forward direction to the second switching position using an analyzing and control system;

determining the multiple tap intervals using the analyzing and control system; and

changing speed of the wiper motor to set a second wiping rate different from the first wiping rate using the analyzing and control system based on the multiple tap intervals;

wherein duration of the multiple tap intervals is used by the analyzing and control system to set the speed of the wiper motor by conducting an operation on multiple tap intervals between successive movements of the control stalk in the forward direction to the second switching position;

wherein the operation includes averaging the multiple tap intervals and changing the speed of the wiper motor to set the second wiping rate using the analyzing and control system based on an average tap interval; and

holding the control stalk in the second switching position for a preselected time interval, the analyzing and control system cancelling a customized wiper speed setting upon detecting the control stalk being held in the second switching position for the preselected time interval.

2. The method of claim 1 further comprising averaging the multiple tap intervals and changing the speed of the wiper motor to set a third wiping rate using the analyzing and control system based on a current average tap interval.

3. The method of claim 1 further comprising the analyzing and control system ignoring a tap interval that is above a preselected threshold tap interval.

4. The method of claim 1 further comprising determining wiping speed of the windshield wiper using a speed sensor.

5. The method of claim 1 further comprising biasing the control stalk away from the second switching position.

6. The method of claim 1 further comprising setting a minimum wiping rate and a maximum wiping rate using the control stalk.

7. A method of user-selecting a custom wiping rate using a windshield wiper control system, comprising:

activating a wiper motor connected to a windshield wiper by moving control stalk to a first switching position providing the windshield wiper with a first wiping rate;

repeatedly moving the control stalk to a second switching position, wherein successive movements of the control stalk to the second switching position define multiple tap intervals;

averaging the multiple tap intervals and changing the speed of the wiper motor to set a second wiping rate different from the first wiping rate using an analyzing and control system based on an average tap interval;

wherein duration of the average tap interval only is used by the analyzing and control system to set the speed of the wiper motor; and

holding the control stalk in the second switching position for a preselected time interval, the analyzing and control system cancelling a customized wiper speed setting upon detecting the control stalk being held in the second switching position for the preselected time interval.

8. The method of claim 7 further comprising the analyzing and control system ignoring a tap interval that is above a preselected threshold tap interval.

9. The method of claim 7, wherein the step of repeatedly moving the control stalk comprises repeatedly moving the control stalk in a forward direction.

10. The method of claim 7 further comprising determining wiping speed of the windshield wiper using a speed sensor.

11. The method of claim 7 further comprising biasing the control stalk away from the second switching position.

12. The method of claim 7 further comprising setting a minimum wiping rate and a maximum wiping rate using the control stalk.

13. A windshield wiper control system, comprising:

a control stalk assembly comprising a control stalk having a first switching position and a second switching position;

an analyzing and control system that receives signals from the control stalk assembly when the control stalk is in the first switching position and the second switching position, wherein successive movements of the control stalk to the second switching position define multiple tap intervals determined by the analyzing and control system;

a wiper motor connected to a windshield wiper that receives input from the analyzing and control system, the analyzing and control system changing speed of the wiper motor to set a second wiping rate different from a first wiping rate using the analyzing and control system based on the multiple tap intervals;

wherein duration of the multiple tap intervals is used by the analyzing and control system to set the speed of the wiper motor by conducting an operation only on multiple tap intervals between successive movements of the control stalk; and

wherein the operation includes averaging the multiple tap intervals and changing the speed of the wiper motor to set the second wiping rate using the analyzing and control system based on an average tap interval; and

holding the control stalk in the second switching position for a preselected time interval, the analyzing and control system cancelling a customized wiper speed setting upon detecting the control stalk being held in the second switching position for the preselected time interval.

14. The windshield wiper control system of claim 13, wherein the analyzing and control system includes logic that ignores a tap interval that is above a preselected threshold tap interval.

15. The windshield wiper control system of claim 13 further comprising a speed sensor that provides an input to the analyzing and control system for determining wiping speed of the windshield wiper.