JPH10119726A - Control device for wiper and opening/closing body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device for a wiper and an opening/closing body preventing unexpected actuation of the wiper and dissolving complication and inconvenience of operation. SOLUTION: When an opening switch is on (S1-YES), whether a rear wiper switch is on is discriminated. In case of the rear wiper switch being off (S2), whether a rear wiper has reached a home position is discriminated (S3). In case this discrimination in S3 is NO and the rear wiper switch is off but the rear wiper has not reached the home position, a power supply for the rear wiper is switched on to actuate the wiper (S5), and then the power supply is switched off (S6). When the rear viper reaches the home position (S7-YES), a glass hatch is driven to open (S3).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiper and an opening / closing body control device for controlling a motor for driving a wiper and an actuator for driving an opening / closing body such as a glass hatch.

[0002]

2. Description of the Related Art Conventionally, as a control device for a wiper and an opening / closing body of this type, those which perform the controls shown in the following prior arts 1 to 3 are known.

Prior art 1: Applicable to a configuration in which a front panel that can be opened and closed is pivotally supported at the lower part of a front window like a truck, and a wiper for wiping the front window is provided. Is opened, the emergency stop switch is turned off, the circuit is cut off, and the operating wiper is stopped (see Japanese Utility Model Laid-Open No. 3-113260).

Prior art 2: This is applied to a configuration in which a glass hatch that can be opened and closed is provided at the rear part of a vehicle body and a wiper for wiping the glass hatch is provided, and an opener switch is used to open the glass hatch. When turned on, in response, the operating wiper is stopped and the wiper is held at that position (see Nissan Motor Co., Ltd., August 1995 "Nissan Avenir", pages F12 and F13).

Conventional technique 3: Similarly, the present invention is applied to a configuration in which a glass hatch which can be opened and closed is provided at a rear portion of a vehicle body and a wiper for wiping the glass hatch is provided. Even if the opener switch is turned on, the glass hatch is not opened if the wiper is operating or is in a position other than the home position. (Refer to Nissan Motor's September 1995 "Nissan Terrano New Model Manual" F21 ).

[0006]

However, in the prior art 1, when the front panel is closed, the emergency stop switch is turned on at the same time, the circuit is connected, and the stopped wiper starts operating. . For this reason,
The wiper may suddenly operate in an unexpected state by a person who has been working with the front panel opened, and the wiper may contact a part of the body of the worker.

Further, in the prior art 2, when the opener switch is turned on, the wiper is stopped and held at the position. Therefore, the wiper can be moved to any position other than the home position which is a predetermined position at the time of stop. Stop at Therefore, in order to stop the wiper at the home position in order to secure the rear view, the wiper switch must be turned on from off and the wiper must be restarted, which complicates the operation. Furthermore, in the prior art 3, when the wiper is operating or is located at a position other than the home position, the glass hatch cannot be opened, which is inconvenient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a control device for a wiper and an opening / closing body which prevents unexpected operation of a wiper and eliminates complicated operation and inconvenience. It is intended to provide.

[0009]

According to the present invention, there is provided a motor for driving a wiper which is supplied with power, an actuator for opening and closing an opening / closing member pivotally supported by a vehicle body, and An opener switch operated to operate the actuator; detecting means for detecting whether the wiper driven by the motor has reached a predetermined home position; and detecting the wiper by the detecting means. When the opener switch is operated in a state where it is detected that the wiper has not reached the position, the power necessary for causing the wiper to reach the home position is supplied to the motor and the power is shut off. The wiper has reached the home position by the motor control means and the detection means. When detected, and an actuator control means for allowing the operation of the actuator.

In such a configuration, when power is supplied to the motor, the motor operates to drive the wiper. On the other hand, the detecting means detects whether or not the rear wiper has reached the home position, which is the standby position when the wiper is not operating. Then, when the opener switch is operated to open the opening / closing body such as a glass hatch, the actuator control means allows the operation of the actuator when the detection means detects that the wiper has reached the home position. I do.
Therefore, in this case, the actuator is operated in response to the operation of the opener switch, whereby the opening / closing body is driven to open.

However, when operating the opener switch to open the opening / closing body, if the detection means detects that the wiper has not reached the home position, the motor control means supplies power to the motor. Then, the wiper is operated, and the actuator control means allows the operation of the actuator when the detection means detects that the wiper has reached the home position.
Therefore, in this case, after the opener switch is operated and the wiper reaches the home position, the opening / closing body is driven to open.

Therefore, the opener can be opened by operating the opener switch regardless of the position of the wiper. Further, in any case, the opening and closing body is driven to open on condition that the wiper has reached the home position, so after the opening and closing body is driven to open or after the opened and closed opening body is closed again, There is no need to operate the motor to move the wiper to the home position. In addition, since the power supply to the motor is stopped after the home position is reached, the wiper does not suddenly start operating even when the open / close body is closed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. This embodiment is applied to a vehicle in which a glass hatch as an openable and closable body is pivotally supported at a rear portion of a vehicle body. As shown in FIG. , An automatic stop switch 3, and a link switch 4 as a detecting means. The motor 2 is linked to a rear wiper (both not shown) for wiping the glass hatch in a predetermined wiping area, and has one input terminal connected to a battery (+).
B).

The automatic stop switch 3 has a movable contact 3a whose body is grounded, and first and second fixed contacts 3b and 3c to which the movable contact 3a selectively contacts.
The automatic stop switch 3 is a mechanical switch that rotates in synchronization with the rear wiper. When the rear wiper starts to operate, the movable contact 3a becomes the first fixed contact 3b.
Contact When the rear wiper reaches the home position, the movable contact 3a comes into contact with the second fixed contact 3c.

One end of the link switch 4 is body-grounded, and is turned off when the rear wiper is at a position other than the home position, and turned on when the rear wiper reaches the home position. Here, the home position is a predetermined standby position outside the start end of the wiping area of the rear wiper when the rear wiper is not operated.

The other input terminal of the motor 2 is connected to a movable contact 5a of the wiper relay 5. The wiper relay 5 is further connected to a body-grounded first fixed contact 5b, a second fixed contact 5c connected to the first fixed contact 3b of the auto stop switch 3, and one end connected to a battery (+ B). A coil 5 d having the other end connected to the collector terminal of the transistor 6 is provided. The emitter terminal of the transistor 6 is body-grounded, and the base terminal is connected via a resistor 7 to a control unit 8 comprising a one-chip microcomputer. The control unit 8 functions as a motor control unit and an actuator control unit in the present embodiment by operating according to a flow described later. The control unit 8 is connected to an accessory circuit (+ ACC) and has a rear wiper switch 9. And the opener switch 10 are connected, and both switches 9 and 10 are also body-grounded.

On the other hand, the glass hatch relay 11 includes a normally-open movable contact 11a, a first fixed contact 11b, and a second fixed contact 1b.
1c and a coil 11d. Coil 11d
Has one end connected to the control unit 8 and the other end connected to the first fixed contact 11.
b and connected to the battery (+ B). Second
The fixed contact 11c is connected to one input terminal of a glass hatch actuator 12 that drives the glass hatch to open, and the other input terminal of the glass hatch actuator 12 is connected to the link switch 4. The control unit 8 is connected between the other input terminal of the glass hatch actuator 12 and the link switch 4. In addition, as shown by a chain line, the wiper relay 5, the control unit 8, the glass hatch relay 11, etc.
The glass hatch control unit 13 is configured.

In the embodiment having the above-described structure, if the rear wiper is not properly operated, the rear wiper is located at the home position. At this time, as shown in FIG. 1, the link switch 4 is in the ON state, and the auto stop switch 3
While being in contact with the fixed contact 3c, the movable contact 5a of the wiper relay 5 is in contact with the second fixed contact 5c.

On the other hand, the control section 8 executes control according to the flow shown in FIG. 2, and first determines whether or not the opener switch 10 has been turned on for a predetermined time T1 or more (step S).
1). When the occupant keeps operating the opener switch 10 for a predetermined time T1 or more, the opener switch 1 is turned on.
If 0 is on for a predetermined time T1 or more, it is determined whether the rear wiper switch 9 is on (step S2). If the rear wiper switch 9 is off as a result of this determination, it is further determined whether or not the rear wiper has reached the home position based on whether or not the link switch 4 is on (step S).
3). When the rear wiper switch 9 is off and the rear wiper is at the home position as a result of the discrimination in step S2 and step S3, that is, when the rear wiper inoperative state is properly maintained,
Since there is no problem, the glass hatch is opened (step S4).

That is, the control unit 8 excites the coil 11d of the glass hatch relay 11 for a predetermined time, and
1a is brought into contact with both fixed contacts 11b and 11c, and the glass hatch actuator 12 is connected to the battery (+ B). At this time, the power is supplied to the glass hatch actuator 12 because the link switch 4 is turned on because the rear wiper is at the home position. Therefore, as shown in the column of “normal operation” in the time chart of FIG.
Is turned on at the same time T1, the glass hatch actuator 12 operates at the time T2, and the glass hatch is driven to open.

If the determination in step S3 is NO and the rear wiper switch 9 is off but the rear wiper has not reached the home position, the power of the rear wiper is turned on, that is, the transistor 6 is turned on. Is turned on to excite the coil 5d of the wiper relay 5. Then, the movable contact 5a of the wiper relay 5 comes into contact with the first fixed contact 5b, power is supplied from the battery (+ B) to the motor 2, and the rear wiper operates.

During operation of the rear wiper,
The auto stop switch 3 is, as described above, a movable contact 3
a is in contact with the first fixed contact 3b. Therefore,
In the next step S6, the power of the rear wiper is turned off, that is, the transistor 6 is turned off to demagnetize the coil 5d of the wiper relay 5, thereby moving the movable contact 5a of the wiper relay 5 from the first fixed contact 5b to the second fixed contact. Even if it is switched to the 5c side, the motor 2 has a battery (+ B) → the motor 2 → the movable contact 5a of the wiper relay 5 → the second fixed contact 5c → the first fixed contact 3b of the auto stop switch 3 →
The current from the battery (+ B) flows from the movable contact 3a to the body ground, and the rear wiper continues to be driven. Therefore, after the rear wiper is driven to the start end of the wiping area, it is further driven to the home position and reaches the home position, and accordingly, the movable contact 3a of the auto stop switch 3 contacts the second fixed contact 3c. At the same time, the link switch 4 that has been in the off state is turned on.

Then, step S7 following step S6
Then, it is determined whether or not the rear wiper has reached the home position, that is, whether or not the link switch 4 has been turned on. If the rear wiper has reached the home position and the link switch 4 has been turned on, Then, the glass hatch is opened (step S8). That is, as described above in step S4, the glass hatch relay 1
When the first coil 11d is excited for a predetermined time, the movable contact 11
a contacts the fixed contacts 11b and 11c, and the glass hatch actuator 12 is connected to the battery (+ B).
At this time, the power is supplied to the glass hatch actuator 12 because the link switch 4 is turned on because the rear wiper is at the home position.

Therefore, as shown in the column of "when the wiper is not at the home position" in the time chart of FIG. 3, when the opener switch 10 is operated with the time T1 or more when the wiper is stopped at a position other than the home position. , The opener switch 10 is at the same time T1
After being turned on, the rear wiper relay 11 is subsequently turned on at time T5, the rear wiper reaches the home position and the link switch 4 is turned on, and after the time T4 has elapsed, the glass hatch actuator 12 is operated at time T2. Then, the glass hatch is driven to open.

If the result of the determination in step S2 is that the rear wiper switch 9 is on and the rear wiper is in the wiping operation, the process proceeds from step S2 to step S6 to turn off the power of the rear wiper. That is, the transistor 6 is turned off and the coil 5d of the wiper relay 5 is turned off.
And the movable contact 5 of the wiper relay 5
a is switched from the first fixed contact 5b to the second fixed contact 5c. However, the movable contact 5a of the wiper relay 5 is
Even when switching from the fixed contact 5b to the second fixed contact 5c side,
The motor 2 has a battery (+ B) → the motor 2 → the movable contact 5a of the wiper relay 5 → the second fixed contact 5c → the first fixed contact 3b of the auto stop switch 3 → the movable contact 3a →
The current from the body ground and the battery (+ B) flows, and the rear wiper continues to be driven.

Therefore, as described above, after the rear wiper is driven to the start end of the wiping area, it is further driven to the home position to reach the home position, and the movable contact 3a of the auto stop switch 3 is accordingly moved. While contacting the second fixed contact 3c, the link switch 4, which has been in the off state, is turned on. Therefore, when it is determined in the next step S7 whether the rear wiper has reached the home position, the determination is YES.
To open the glass hatch (step S
8).

Therefore, as shown in the column of "at the time of wiper operation" in the time chart of FIG. 3, if the opener switch 10 is operated with the time T1 or more during the wiping operation of the wiper, the opener switch 10 is turned on for the same time T1. After a lapse of time T3, the wiper relay 5 is turned off. Subsequently, the rear wiper reaches the home position, the link switch 4 is turned on, and after a lapse of time T4, the glass hatch actuator 12 operates at the time T2, and the glass hatch is driven to open.

In the above description, the time T1 to T4
Is a value of less than 1 second, and the time T5 is a value of about 3 to 4 seconds. In addition, the present invention can be applied to any of the configuration in which the wiper is attached to the hatch glass and the configuration in which the wiper is attached to the vehicle body.

[0029]

As described above, according to the present invention, when the opener switch is operated in a state where the wiper has not reached the home position, the motor is controlled to move the wiper to the home position. , The power is cut off, and thereafter, the operation of the actuator that opens and closes the opening / closing body is allowed. Therefore, when the opening / closing body driven to open is closed again, the stopped wiper does not start to operate, and the wiper suddenly operates in an unexpected state, so that the wiper contacts a part of the body. The fear can be eliminated.
Also, since the wiper is always driven to the home position, it is not necessary to operate the wiper switch from off to on to secure the rear view, and to operate the wiper, thereby eliminating the complexity of operation. . Further, even when the wiper is in operation or in a position other than the home position, the glass hatch can be opened, thereby improving convenience.

[0030]

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing a processing procedure of a control unit in the embodiment.

FIG. 3 is a time chart showing the operation of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 rear wiper device 2 motor 3 auto stop switch 4 link switch 5 wiper relay 8 control unit 9 rear wiper relay 10 opener switch 12 glass hatch actuator

Claims (1)

[Claims] 1. A motor that is supplied with power to drive a wiper, an actuator that opens and closes an opening / closing body that is pivotally supported by a vehicle body, an opener switch that is operated to operate the actuator, and that is driven by the motor. Detecting means for detecting whether or not the wiper has reached a predetermined home position; and in a state where the detecting means has detected that the wiper has not reached the home position,
When the opener switch is operated, a power required to cause the wiper to reach the home position is supplied to the motor, and a motor control means for shutting off the power is provided. And a controller for controlling the wiper and the opening and closing body, comprising: