JPH01285447A - Side wiper driver - Google Patents

Abstract

PURPOSE:To keep off any inadvertent operation of a side wiper during stoppage by prohibiting operation of a side wiper driving motor when a driver does not take his seat during stoppage on the basis of each detected value of a car speed sensor and a seating sensor. CONSTITUTION:There is provided with a wiper motor 14 for driving a side wiper wiping clean a side windowpane, and currents N, R out of a power source 15 are selected by selecting operation of selector switches 12, 13 by means of a controller 1, thereby performing drive control over the wiper motor 14. Each detected value of a car speed detecting means 4 and a seating detecting means 7 is inputted into this controller 1, and when a car is stopped and a driver does not take his seat, any operation of the side wiper driving motor is prohibited, and thereby the side wiper is made so as not to be operated. When opening or closing a door at time of alighting, even if a side wiper switch is turned on by mistake, the side wiper can be prevented from being inadvertent ly operated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a side wiper drive device for driving a side wiper for wiping a side window glass of a vehicle.

(Prior Art) In recent years, door mirrors have been increasingly used in vehicles as a means to ensure the driver's rear visibility.
Along with this, side wipers have come to be used to wipe the door glass (side window glass) in order to ensure rearward visibility through door mirrors while driving in the rain. Conventionally, such a side wiper drive device is known in which the side wiper is operated in a predetermined cycle (for example, 1 to 2 cycles) when the driver turns on a side wiper switch. That is, the side wiper switch is of a self-resetting type (non-locking type) that turns on when pressed and turns off when released, so that the side wiper operates for one or two cycles only when the driver turns on the switch. It has become.

If such a side wiper is activated when the door glass is open for more than a specified period of time, there may be problems such as the water wiped away entering the room, so when the door glass is left open for more than a specified period of time, the side wiper switch is turned on. There is also a known side wiper drive device that does not operate the side wiper (for example, Japanese Utility Model Publication No. 1006/1983).

(Problem to be solved by the invention) In conventional devices, if the window is closed, the side wiper operates in a predetermined cycle when the switch is turned on. Even if you do so, the side wiper will operate for a predetermined cycle.

In order to solve this problem, it is an object of the present invention to prevent the side wiper from being inadvertently activated while the vehicle is stopped.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a side wiper drive device including a wiper motor for driving a side wiper for wiping a side window glass of a vehicle. seating detection means for detecting whether the driver is seated in the driver's seat, and motor drive control means for controlling the wiper motor so as not to drive it when the vehicle is stopped and the driver is not seated. be.

Further, for the same purpose, the motor drive control means includes a gear position detection means for detecting an in-gear state in which the vehicle can start, in place of the seating detection means, and when the vehicle is stopped and is not in the in-gear state, the motor drive control means The wiper motor is controlled not to be driven, and includes the gear position 5F detection means in addition to the seating position detection means, and the wiper motor is not driven when the driver is not in the in-gear state while the vehicle is stopped and the driver is not seated. You can do it like this. Further, the gear position detection means detects an in-gear state in which the gear position is in a position other than neutral or parking in an automatic transmission vehicle, and an in-gear state in which the gear position is in a position other than neutral or in which the clutch pedal is depressed in a manual transmission vehicle. It is desirable to detect

(Operation) When the vehicle is stopped and the driver is not seated in the driver's seat, the side wipers will not operate even if the side wiper switch is turned on. Also, when the vehicle is stopped and not in gear, the side wiper will not operate even if the side wiper switch is turned on.Furthermore, when the vehicle is stopped and not in gear and the driver is not in the driver's seat, the side wiper switch will not operate. Even if it is turned on, the side wiper does not operate.

(Example) An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Fl13! I is an overall block configuration diagram of a side wiper drive device according to an embodiment of the present invention, in which 1 is a motor drive control means, and the control means I is a motor drive control circuit l.
The vehicle speed detecting means 4 includes a door glass position detecting means 5, a side wiper blade position detecting means 6, a seating detecting means 7, a gear position detecting means 8, and an overload detecting means 9. Each of these detection means 4 to 9 is connected to the side wiper switch 1.
0 and the motor drive control circuit 1.

Further, the circuit 1 is connected to switching means 12 and 13 and a power supply terminal 11 to which a positive voltage is supplied from a battery (not shown). Further, the first terminals 12a, 13a of the switching means 12-13 are connected to the power supply terminal 11, and the second terminals 12b, 1
3b is a connection point 1 between the overload detection means 9 and one end of the resistor 15
5a, and the other end of the resistor 15 is connected to ground.

As shown in FIG. 2, the side wiper 22 includes a wiper blade 22a, which wipes the outer surface of a door glass (side window glass) 21 of a vehicle, attached to the tip of a wiper arm 22b. The base end side of the wiper arm 22b is connected to a wiper motor 14, and the wiper blade 22a is moved by the wiper motor 14 over a predetermined range in the vertical direction in FIG. 2 via the wiper arm 22b. Wiper motor 1
One terminal 14a for current supply of No. 4 is connected to one switching means 1.
The other terminal 14b is connected to the third terminal 13c of the other switching means 13, respectively.

Vehicle speed detection means 4 detects the vehicle speed and outputs a detection signal thereof. The door glass position detection means 5 includes the side wiper 2
2, it is detected whether or not the door glass 21 has been wiped for a predetermined period or more, and a detection signal thereof is output. The side wiper blade position detection means 6 detects the position of the wiper blade 22a at a position necessary for controlling the rotational direction of the wiper motor 14, and outputs a detection signal thereof. The seating detection means 7 detects whether or not the driver is seated in the driver's seat, and outputs a detection signal thereof. The seating detection means 7
The system detects whether a driver is seated, based on, for example, the seat pressure in the driver's seat or whether a seat belt is fastened.

The gear position detection means 8 detects whether the gear position is in gear or not, that is, whether the gear position is in neutral or other than the parking position in the case of an automatic car, and whether the gear position is other than neutral or in the case of a manual transmission car. It detects whether or not the pedal is depressed and outputs a detection signal. The overload detection means 9 detects whether the wiper motor 14 is in an overload state and outputs a detection signal thereof. The side wiper switch 10 is the above-mentioned self-resetting switch, and outputs an on signal only while the driver is pressing the switch. Detection signals output from each of the detection means 4 to 9 and the side wiper switch lO are supplied to a motor drive control circuit l.

Next, the operation of one cycle of the side wiper will be explained.

When the side wiper blade 22a is not in operation, it is in the retracted position shown in Fig. 2A, and at this time both control outputs (1) and (2) are output.
are both at Low level, - the third of the force switching means 12
The terminal 12c is connected to the second terminal 12b, and the third terminal 13c of the other switching means 13 is connected to the second terminal 13b. In this state, no current flows through the wiper motor 14, and the side wiper 22 does not operate. When one control output (1) becomes Hi level from this state, the third terminal 12c of one switching means 12 is connected to the first terminal 12a, and it is connected from the power supply terminal 11 through one switching means 12 as shown by the arrow N. A current flows in the direction shown, causing the wiper motor 14 to rotate and raise the side wiper blade 22a. The motor drive control circuit 1 also detects a signal from the side wiper blade position detecting means 6 indicating that the side wiper blade 22a has passed the lower limit position of operation shown in FIG. 2B and reached the upper limit position of operation shown in FIG. 2C. When input, one control output (1) is set to L.
ow level, and the other control output (2) is set to Hi level.

As a result, the second terminal 12b and third terminal 12c of one switching means 12 are connected, and the first terminal 13a and third terminal 13c of the other switching means 13 are connected, respectively, and the direction of the current flowing through the wiper motor 14 is from arrow N. Switch in the direction of arrow R,
The wiper blade 22a descends. Wiper blade 22
When a falls to the lower limit position of operation as shown in FIG. Control output (2) is set to Low level.

As a result, the current flowing through the wiper motor 14 is switched from the direction of the arrow R to the direction of the arrow N, and the wiper blade 22a rises again. In the same manner as described above, when the wiper blade 22a reaches the operating upper limit position shown in FIG. do. In this way, the side wiper blade 22a rises from the storage position A and moves up and down twice between the lower limit position B and the upper limit position C.
After repeating the operation once, it returns to the storage position A again and stops until it stops, which constitutes one cycle.

Next, the operation of the motor drive control circuit 1 will be explained based on the flowchart shown in FIG.

First, it is determined whether the door glass 21 is opened more than a predetermined amount (step 301), and if the answer is ``Yes'', the side wiper 22 is deactivated (step 3).
07). If the answer to step 301 is negative (NO), it is determined whether the vehicle speed V is greater than zero, that is, whether the vehicle is running (step 302). If the answer to step 302 is negative (NO), check whether the gear is in gear or not, that is, whether the gear position is in neutral or other than the parking position for automatic transmission cars, or whether the gear position is other than neutral for manual transmission cars. or whether the clutch is depressed (step 30).
3). If the answer is negative (No), it is determined whether the driver is seated in the driver's seat (step 304).
. This determination can be made, for example, by whether the seat belt is fastened or not.
Alternatively, if the answer to step 304, which is determined by detecting the seat pressure in the driver's seat, is negative (No), that is, the driver is not seated, the side wiper 22 is deactivated (step 307).

When the answer to any of steps 302, 303, and 304 is affirmative (Yes), that is, when the vehicle is running or stopped and is in the in-gear state or the driver is seated, it is determined whether the side wiper switch 10 is turned on or not. If the answer is affirmative (Yes), the side wiper 22 is operated for a predetermined cycle (for example, one cycle) (step 306), and if the answer is negative (No), the side wiper 22 is inactivated ( Step 3
07).

In this way, when the vehicle is stopped and the vehicle is not in the in-gear state and the driver is not seated in the driver's seat, the side wiper is inactivated regardless of whether the side wiper switch 10 is on or off. For example, it is possible to prevent accidental activation when the side wiper switch 10 is turned on by mistake when the driver gets on or off the vehicle.

Incidentally, when the overload detection means 9 detects an overload state of the wiper motor 14 during the operation of the side wiper 22 in step 306, the motor drive control circuit 1 immediately outputs both control outputs (1).

(2) are both set to Low level, and the current supply to the wiper motor 14 is stopped. This makes it possible to prevent the wiper motor from seizing or the like.

In the above-mentioned embodiment, both the seating detection means 7 and the gear position detection means 8 are used, but only the seating detection means 7 is used when the vehicle is stopped and the driver is not seated.
The side wiper 22 may be deactivated, or the side wiper 22 may be deactivated using only the gear position detection means 8 when the vehicle is stopped and not in the above-mentioned in-gear state.

(Effects of J1 Ming) As described in detail above, the present invention provides a side wiper drive device including a wiper motor for driving a side wiper for wiping a side window glass of a vehicle. a seating detection means for detecting whether or not a driver is seated on the vehicle, and a motor drive control means for controlling the wiper motor so as not to drive when the vehicle is stopped and the driver is not seated; As a means, the gear position detection means is included instead of the seating detection means, and the wiper motor is not driven when the vehicle is stopped and is not in the in-gear state, thereby preventing inadvertent operation of the side wiper while the vehicle is stopped. This has the effect of being able to.

Furthermore, the motor drive means includes the gear position detection means in addition to the front seating detection means, and when the vehicle is not in the in-gear state and the driver is not seated while the vehicle is stopped,
Since the wiper motor is not driven, for example, if the seating detection means detects that the driver is not seated even though he or she is seated (the driver may unfasten his or her seat belt just before reversing the vehicle) Even when the seat pressure is expected to decrease due to twisting of the body, etc.), the side wiper can be activated if the in-gear condition is in place. It can be operated reliably.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an overall block diagram of a side wiper drive device according to an embodiment of the present invention, FIG. 2 is a diagram showing the operating state of the side wiper 15, and FIG. 3 is a diagram showing the motor of FIG. 1. 3 is a flowchart showing the control operation of the drive control circuit 1. FIG. ■... Motor drive control means, 1... Motor drive control circuit, 4... Vehicle speed detection means, 7... Seating detection means,
8... Gear position detection means, 14... Wiper motor,
22...Side wiper. Applicant Honda Motor Co., Ltd.

Claims (1)

[Scope of Claims] 1. A side wiper drive device equipped with a wiper motor for driving a side wiper for wiping a side window glass of a vehicle, which includes a vehicle speed detection means and a device for detecting whether or not a driver is seated in a driver's seat. 1. A side wiper drive device, comprising: a seating detection device for detecting seating, and a motor drive control device for controlling the wiper motor so as not to drive when the vehicle is stopped and a driver is not seated. 2. A side wiper drive device equipped with a wiper motor for driving a side wiper for wiping the side window glass of a vehicle, which includes a vehicle speed detection means and a gear position detection means for detecting an in-gear state in which the vehicle can start. and a motor drive control means for controlling the wiper motor so as not to drive it when the wiper motor is stopped and not in the in-gear state. 3. The motor drive control means includes a gear position detection means for detecting an in-gear state in which the vehicle can start, and drives the wiper motor when the vehicle is not in the in-gear state while the vehicle is stopped and the driver is not seated. The side wiper drive device according to claim 1, characterized in that it does not.