EP0191639A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
An apparatus and a method for controlling wiper
Assignee: Toyota Motor Corp
•
Filing: 1986-02-12
•
Granted: —
•
Expires: 2006-02-12
Abstract
Abstract The present invention relates to an apparatus and a method for controlling a wiper (85) which smoothly starts to move the wiper (85) at different wiping speeds from an initial position (88) thereof in accordance with the detected amount of rain. The apparatus for controlling wiper (85) includes the sensor (100), a first comparator (200), an actuator (300), a second comparator (400), a memory (600) and a changing device (700). The sensor (100) detects amount of rain. The first comparator (200) compares the amount of rain detected by the sensor (100), with a small predetermined amount of drops of water. When the first comparator (200) determines the detected amount of rain is equal to or greater than the small predetermined amount of drops of water, the first comparator (200) outputs a first actuating signal. The actuator (300) starts to move the wiper (85) in accordance with receipt of the first actuating signal outputted from the first comparator (200). When the actuator (300) receives the first actuating signal the actuator (300) starts to move the wiper (85) at a low wiping speed and the actuator (300) outputs a pulse signal. The second comparator (400) compares the detected amount of rain with a large predetermined amount of drops of water. When the second comparator (400) determines the detected amount of rain is equal to or greater than the large amount of drops of water, the second comparator (400) outputs a second actuating signal. The memory (600) memorizes the second actuating signal outputted from the second comparator (400) and the memory (600) outputs the memorized signal. The changing device (700) for changing the wiping speed of the wiper (85) atthe time when the wiper (85) starts to move from the initial position (88) in accordance with the memorized second actuating signal outputted from the memory (600) at the time when the wiper (85) starts to move from the initial position (88), the changing device (700) changes the low wiping speed of the wiper (85) to the high wiping speed or the high wiping speed of the wiper (85) to the low wiping speed.
Inventors
- 👤 Motomi Iyoda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 08:16
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/04; B60S1/06; B60S1/08; B60S1/0818; B60S1/0822; B60S1/0825; B60S1/0829
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
307 words
An apparatus for controlling a wiper (85) comprising detecting means (100) for detecting an amount of rain, first comparator means (200) for comparing the detected amount of rain with a first predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, wherein when the first comparator means (200) determines the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first comparator means (200) outputs a first output signal, and actuator means (300) for actuating the wiper (85) in accordance with receipt of the first output signal so that when the actuator means (300) receives the first output signal, the actuator means (300) produces an actuating output signal and starts to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85), and further comprising second comparator means (400) for comparing the detected amount of rain with a second predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, wherein when the second comparator means (400) determines the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, the second comparator means (400) produces a second output signal, memory means (600) for memorizing the second output signal and for reproducing the memorized second output signal, and changing means (700) for producing the change output signal and for changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the memorized second output signal reproduced from the memory means (600).
Claim 2
Independent Claim
307 words
An apparatus for controlling a wiper (85) comprising detecting means (100) for detecting an amount of rain, first comparator means (200) for comparing the detected amount of rain with a first predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, wherein when the first comparator means (200) determines the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first comparator means (200) outputs a first output signal, and actuator means (300) for actuating the wiper (85) in accordance with receipt of the first output signal so that when the actuator means (300) receives the first output signal, the actuator means (300) produces an actuating output signal and starts to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85), and further comprising second comparator means (400) for comparing the detected amount of rain with a second predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, wherein when the second comparator means (400) determines the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, the second comparator means (400) produces a second output signal, memory means (600) for memorizing the second output signal and for reproducing the memorized second output signal, and changing means (700) for producing the change output signal and for changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the memorized second output signal reproduced from the memory means (600).
Claim 3
Dependent Claim
100 words
An apparatus as claimed in claim 1, wherein the detecting means (100) comprises a detector (101) and an integrating means (102), the detector (101) detecting each amount of drops of water and then outputting a level signal in accordance with the detected each amount of drops of water, the integrating means (102) integrating all of level signals outputted from the detector (101) during a time period defined between a first time when the wiper (85) starts to move from the initial position (88) and a second time when the wiper (85) starts to move again from the initial position (88).
Claim 4
Dependent Claim
28 words
An apparatus as claimed in claim 1, wherein the actuator means (300) comprises a one-shot circuit (31), a switching transistor (32), a relay (33) and a switch (34).
Claim 5
Dependent Claim
27 words
An apparatus as claimed in claim 1, wherein the changing means (700) comprises a flip-flop (71), a switching transistor (72), a relay (73) and a switch (74).
Claim 6
Dependent Claim
42 words
An apparatus as claimed in claim 1, wherein the memory means (600) reproduces the memorized second output signal a predetermined time period after the actuator means (300) starts to move the wiper (85) from the initial position (88) of the wiper (85).
Claim 7
Dependent Claim
70 words
An apparatus as claimed in claim 5, wherein the memorized second output signal, reproduced from the memory means (600), has a first logic level when the second comparator means (400) outputs the first output signal, the predetermined time period after the actuator means (300) starts to move the wiper (85) from the initial position (88) of the wiper (85) and when the first output signal has the first logic level.
Claim 8
Dependent Claim
64 words
An apparatus as claimed in claim 6, wherein the memorized second output signal has a second logic level when the second comparator means (400) outputs the first output signal, the predetermined time period after the actuator means (300) starts to move the wiper (85) from the initial position (88) of the wiper (85) and when the first output signal has the second logic level.
Claim 9
Dependent Claim
61 words
An apparatus as claimed in claim 7, wherein when the memory means (600) reproduces the second output signal and the second output signal has the first logic level, the changing means (700) outputs the change output signal at the time when the wiper (85) starts to move from the initial position (88), the change output signal having the first logic level.
Claim 10
Dependent Claim
61 words
The apparatus as claimed in claim 8, wherein when the memory means (600) reproduces the second output signal and the second output signal has the second logic level, the changing means (700) outputs the change output signal at the time when the wiper (85) starts to move from the initial position (88), the change output signal having the second logic level.
Claim 11
Dependent Claim
76 words
An apparatus as claimed in claim 1, further comprising means (35) for detecting the position of the wiper (85) and for producing a position signal when the wiper (85) starts to move from the initial position (88), the changing means (700) changing the wiping speed of the wiper (85) at a time when the position detecting means (35) produces the position signal in accordance with the memorized second output signal reproduced by the memory means (600).
Claim 12
Independent Claim
454 words
An apparatus for controlling a wiper (85) comprising detecting means (100) for detecting an amount of rain positioned thereon, the wiper (85) moving out the detecting means (100), the wiper (85) moving from and returning to an initial position (88), the detecting means (100) being located in the vicinity of an apex of movement of the wiper (85), first comparator means (200) for comparing the detected amount of rain positioned on the detecting means (100), after the wiper (85) wipes out the detecting means (100), with a first predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first comparator means (200) producing a first output signal whereby when the first comparator means (200) determines the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first output signal has a first logic level, and when the first comparator means (200) determines the detected amount of rain is less than the first predetermined amount of drops of water, the first output signal has a second logic level, actuator means (300), connected to the first comparator means (200), for producing a first actuating output signal and starting to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85) when the first output signal has the first logic level, second comparator means (400) for comparing the detected amount of rain positioned on the detecting means (100), after the wiper (85) wipes out the detecting means (100) with a second predetermined amount of drops of water, and for determining if the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, whereby the second comparator means (400) produces a second actuating output signal which has the first logic level when the second comparator means (400) determines the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, and when the second comparator means (400) determines the detected amount of rain is less than the second predetermined amount of drops of water, the second comparator means (400) produces the second output signal which has the second logic level, memory means (600) for memorizing the second output signal and for reproducing the memorized second output signal; and changing means (700) for producing a change output signal and for changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the memorized second output signal reproduced from the memory means (600).
Claim 13
Independent Claim
454 words
An apparatus for controlling a wiper (85) comprising detecting means (100) for detecting an amount of rain positioned thereon, the wiper (85) moving out the detecting means (100), the wiper (85) moving from and returning to an initial position (88), the detecting means (100) being located in the vicinity of an apex of movement of the wiper (85), first comparator means (200) for comparing the detected amount of rain positioned on the detecting means (100), after the wiper (85) wipes out the detecting means (100), with a first predetermined amount of drops of water and for determining if the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first comparator means (200) producing a first output signal whereby when the first comparator means (200) determines the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, the first output signal has a first logic level, and when the first comparator means (200) determines the detected amount of rain is less than the first predetermined amount of drops of water, the first output signal has a second logic level, actuator means (300), connected to the first comparator means (200), for producing a first actuating output signal and starting to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85) when the first output signal has the first logic level, second comparator means (400) for comparing the detected amount of rain positioned on the detecting means (100), after the wiper (85) wipes out the detecting means (100) with a second predetermined amount of drops of water, and for determining if the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, whereby the second comparator means (400) produces a second actuating output signal which has the first logic level when the second comparator means (400) determines the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, and when the second comparator means (400) determines the detected amount of rain is less than the second predetermined amount of drops of water, the second comparator means (400) produces the second output signal which has the second logic level, memory means (600) for memorizing the second output signal and for reproducing the memorized second output signal; and changing means (700) for producing a change output signal and for changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the memorized second output signal reproduced from the memory means (600).
Claim 14
Independent Claim
181 words
A method for controlling a wiper (85) comprising detecting an amount of rain, comparing the detected amount of rain with a first predetermined amount of drops of water, producing a first output signal when the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, and producing an actuating signal and starting to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85) in accordance with receipt of the first output signal, and further comprising comparing the detected amount of rain with a second predetermined amount of drops of water, producing a second output signal when the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, memorizing the second output signal, reproducing the memorized second output signal, and producing the change output signal and changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the reproduced second output signal.
Claim 15
Independent Claim
181 words
A method for controlling a wiper (85) comprising detecting an amount of rain, comparing the detected amount of rain with a first predetermined amount of drops of water, producing a first output signal when the detected amount of rain is equal to or greater than the first predetermined amount of drops of water, and producing an actuating signal and starting to move the wiper (85) at a first wiping speed from an initial position (88) of the wiper (85) in accordance with receipt of the first output signal, and further comprising comparing the detected amount of rain with a second predetermined amount of drops of water, producing a second output signal when the detected amount of rain is equal to or greater than the second predetermined amount of drops of water, memorizing the second output signal, reproducing the memorized second output signal, and producing the change output signal and changing the wiping speed of the wiper (85) at a time when the wiper (85) starts to move from the initial position (88) thereof in accordance with the reproduced second output signal.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.