KR102598640B1 - Wiper ccontrol apparatus and method for vehicle - Google Patents

Abstract

The present invention relates to an automobile wiper control device and method, which includes a side wiper on a side mirror, and operates the side wiper to remove moisture from the side mirror when it rains or splashes water and obstructs the view. The windshield wiper and the side mirror wiper can be selectively controlled using one switch, and moisture from the side mirror can be quickly removed through the side wiper. Rear view can be easily secured, reducing the occurrence of accidents. and has the effect of improving safety.

Description

Automotive wiper control device and method {WIPER CCONTROL APPARATUS AND METHOD FOR VEHICLE}

The present invention relates to a wiper control device and method for an automobile, and more specifically, to an automobile wiper control device and method for removing moisture from a side mirror by providing a wiper on the side mirror.

A car is equipped with a room mirror in the center of the inside of the car and side mirrors on the left and right sides of the car so that the rear of the car can be checked while driving on the road.

A side mirror is a representative device that allows the driver to recognize the rear and side areas. A mirror is mounted on the side of the vehicle to reflect light transmitted from the rear side and transmit it to the driver.

The driver checks the rear of the vehicle, especially the left or right rear, through side mirrors provided on the left and right sides, and changes lanes while checking for other vehicles approaching from the left or right rear. Drivers can recognize vehicles, objects, and people behind the vehicle through the side mirror.

These side mirrors are often covered with rainwater during rainy weather, and the image of the rear of the vehicle reflected on the reflector is distorted due to the rain, making it difficult for the driver to recognize the state of the rear of the vehicle.

The front and rear windshields of the car are equipped with wipers to easily remove rainwater and ensure visibility. However, side mirrors do not come with wipers, making it difficult to secure visibility and increasing the likelihood of an accident when changing lanes or reversing. there is a problem.

Accordingly, a method is needed to remove rainwater or moisture from the car's side mirror.

Related prior art includes Korean Patent Publication No. 2020-0117935, “Side mirror rainwater removal system and side mirror rainwater removal method.”

Republic of Korea Patent Publication No. 10-2020-0043057

The present invention was created in response to the above-mentioned need, and is a vehicle equipped with a wiper on the side mirror, and when rain or water splashes obstructs the view, the wiper is operated to remove moisture from the side mirror to ensure rear visibility. To provide a wiper control device and method.

In order to achieve the above object, a wiper control device for an automobile according to the present invention includes a first wiper installed on the windshield; a second wiper installed on the side mirror to remove moisture from the side mirror; a wiper switch that sets a mode for the first wiper and the second wiper; and a control unit that controls at least one of the first wiper and the second wiper to operate in response to the mode set by the wiper switch. It includes, and the control unit is characterized in that when the mode for the second wiper is set by the wiper switch, the first wiper is stopped and the second wiper is controlled to operate.

a second wiper driving unit that controls driving so that the second wiper operates in response to a control command from the control unit; It further includes, wherein the second wiper reciprocates once by the second wiper driving unit.

When the mode for the first wiper is set by the wiper switch, the control unit controls the first wiper to operate at a set speed and then operates the second wiper once while the first wiper is operating. It is characterized by control.

When the first wiper operates in a high-speed mode by the wiper switch, the control unit controls the second wiper to operate repeatedly a certain number of times or to operate in a certain time unit while the first wiper is operating. do.

Rain sensor that detects rainwater; It further includes, wherein the control unit controls the first wiper in response to the amount of rainwater detected by the rain sensor, and controls one of the number of operations and the operation cycle of the second wiper in response to the amount of rainwater. As a change, the second wiper is controlled to operate repeatedly a certain number of times or to operate in a certain time unit.

The second wiper is disposed on one side of the side mirror so that one surface is in contact with the mirror of the side mirror, reciprocates up and down or left and right about the rotation axis, and removes moisture from the side mirror. Characterized by removal.

The second wiper is characterized as an air wiper that is disposed on one side of the side mirror and discharges air at a certain pressure to remove moisture from the side mirror.

The wiper switch includes a first side mirror wiper mode and a second side mirror wiper mode for the second wiper, and the control unit operates the first side mirror wiper mode and the second side mirror wiper mode in response to the first side mirror wiper mode and the second side mirror wiper mode. It is characterized by changing one of the number of operations and the operation cycle of the second wiper.

The control method of the automobile wiper control device of the present invention includes the steps of a wiper switch inputting a signal for one mode of a first wiper installed on the windshield and a second wiper installed on the side mirror; In response to the mode of the wiper switch, a control unit controlling at least one of the first wiper and the second wiper to operate; When the mode for the first wiper is set, operating the first wiper to remove moisture from the windshield in response to a control command from the controller; and when the mode for the second wiper is set, operating the second wiper to remove moisture from the side mirror in response to a control command from the controller; Includes.

When the mode for the second wiper is set, the second wiper reciprocates once.

When the mode for the first wiper is set, operating the second wiper once while the first wiper is operating; It further includes.

When the high-speed mode for the first wiper is set, operating the second wiper repeatedly a certain number of times or in a certain time unit while the first wiper is operating; It further includes.

A rain sensor detecting the amount of rainwater; changing the operating speed of the first wiper in response to the amount of rainwater; operating the first wiper at the changed operating speed; changing one of the number of operations and the operation cycle of the second wiper in response to the amount of rainwater; and operating the second wiper repeatedly a certain number of times or on a certain time basis; It further includes.

When the first side mirror wiper mode for the second wiper is set by the wiper switch, operating the second wiper once; and when the second side mirror wiper mode is set, operating the second wiper repeatedly a certain number of times or in a certain time unit; It further includes.

According to one aspect, the vehicle wiper control device and method according to the present invention can quickly remove moisture from the side mirror by operating the wiper provided on the side mirror when it rains or water splashes, and improves rear visibility. It can be easily secured.

According to one aspect of the present invention, the windshield wiper and the side mirror wiper can be selectively controlled using a single switch, thereby improving convenience of control.

The present invention has the effect of reducing the occurrence of accidents and improving safety by quickly securing visibility.

1 is a diagram illustrating the configuration of a vehicle and a wiper control device according to an embodiment of the present invention.
Figure 2 is a diagram showing another example of a wiper control device according to an embodiment of the present invention.
Figure 3 is a block diagram briefly illustrating the configuration of a wiper control device according to an embodiment of the present invention.
Figure 4 is a diagram showing a switch of a wiper control device according to an embodiment of the present invention.
FIG. 5 is a diagram referenced for explaining setting data for the operation of the switch of FIG. 4.
Figure 6 is a flowchart showing a control method of a wiper control device according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings.

In this process, the thickness of lines or sizes of components shown in the drawing may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

1 is a diagram illustrating the configuration of a vehicle and a wiper control device according to an embodiment of the present invention.

As shown in (a) of FIG. 1, the automobile 1 is equipped with a first wiper 30 to remove rainwater or contaminants from the windshield.

In addition, as shown in (b) of FIG. 1, the wiper control device according to the present invention includes a side wiper 20 installed on the side mirror 10 disposed on the left and right sides of the car 1. .

The side wiper 20 is installed on the left and right side mirrors of the car 1, respectively. The side wiper 20 can operate both the left side mirror and the right side mirror simultaneously.

The side wiper 20 may be placed on either side of the side mirror 10.

The side wiper 20 removes moisture from the side mirror 10 while reciprocating up and down or left and right based on a rotation axis provided on one side of the side mirror 10. The side wiper 20 is installed so that one surface is in contact with the mirror 11 of the side mirror 10, and removes moisture from the mirror 11 while moving.

The side wiper 20 has a rotation axis 23 disposed on one side of the side mirror 10, a connection part 22 connected to the rotation axis 23, is connected to the connection part 22, and has one side in contact with the mirror 11. It includes a wiper 21 installed to do so, and a drive motor (not shown) that generates rotational force.

Additionally, the side wiper 20 has a drive motor disposed inside the housing 12 of the side mirror 10 and on the back of the mirror 11. At least one drive motor is provided, and a linear motor may be used. The drive motor rotates at a certain angle in one direction, and after stopping, the rotation direction can be changed to rotate at a certain angle.

The rotation shaft 23 is connected to the drive motor and rotates by the rotational force of the drive motor when the drive motor operates. The rotation axis 23 may be placed on either side of the side mirror 10.

For example, the rotation axis 23 may be placed on the upper right side of the side mirror 10.

When the rotating shaft 23 rotates, the connecting portion 22 reciprocates in an arc shape around the rotating shaft 23. The connection portion 220 reciprocates in the up and down directions when the rotation axis 23 is disposed on the upper part of the side mirror 10.

The wiper 21 moves in dependence on the movement of the connection portion 22. The wiper 21 removes moisture from the surface of the mirror 11 while moving through the connection portion.

Figure 2 is a diagram showing another example of a wiper control device according to an embodiment of the present invention.

As shown in FIG. 2, the side wiper 20 may be placed in the lower center of the side mirror 10.

The side wiper 20 rotates with a rotation axis 23 disposed at the lower center of the side mirror 10.

As the rotation shaft 23 of the side wiper 20 rotates, the connection portion 22 reciprocates in the left and right directions.

The side wiper 20 removes moisture from the surface of the mirror 11 as the wiper 21 moves in dependence on the movement of the connecting portion 22.

The side wiper 20 has been described as being installed on the upper right or lower center of the side mirror 10, but is installed on the upper right, upper center, upper left, lower right, lower center, and lower left of the side mirror 10. It can be placed on either side.

Additionally, the wiper 21 of the side wiper 20 may be directly connected to the rotation shaft 23, excluding the connection portion 22.

Meanwhile, the side wiper 20 may be an air wiper that is provided on one side of the side mirror 10 and sprays air above a certain pressure. The air wiper can adjust the pressure of the air it sprays or the number of times it sprays air in response to the set mode or amount of rainwater.

Figure 3 is a block diagram briefly illustrating the configuration of a wiper control device according to an embodiment of the present invention.

As shown in FIG. 3, the wiper control device of the automobile 1 includes a wiper switch 131, a sensor unit 120, a first wiper 30, a first wiper drive unit 150, and a second wiper drive unit 160. ), a second wiper 20, an output unit 140, a data unit 180, a communication unit 170, and a control unit 110 that controls the overall operation.

The wiper switch 131 is included in the input unit 130 and inputs a wiper operation command. The wiper switch 131 may be a multi-function switch. In some cases, it is also possible to provide a separate switch.

The sensor unit 120 includes at least one rain sensor 121. Additionally, the sensor unit 120 includes a plurality of sensors and detects temperature, pressure, and vehicle speed.

The rain sensor 121 detects rainwater during rainy weather and detects the amount of rainwater.

The rain sensor 121 is installed on one side of the windshield of the automobile 1 and detects moisture on the windshield.

Additionally, the rain sensor 121 is installed on the side mirror 10 and can detect moisture on the mirror 11 of the side mirror 10.

The output unit 140 outputs status information about the vehicle including at least one of a display (not shown), HUD (not shown), speaker (not shown), lamp (not shown), and speaker (not shown). .

When rainwater is detected by the rain sensor 121, the output unit 140 displays information about it. Additionally, when the first wiper 30 or the second wiper 20 operates, the output unit 140 may display that the wiper is in operation.

Additionally, the output unit 140 outputs a warning when an abnormality occurs.

The data unit 180 includes data on control settings, control data for controlling the operation of the first wiper 30 and the second wiper 20, the amount of rainwater according to the detection signal of the rain sensor 121, and the corresponding Stores data on wiper control speed and status information.

The communication unit 170 includes a plurality of communication modules and performs CAN communication for transmitting and receiving data inside the vehicle, as well as short-range communication such as Bluetooth, and wireless communication for connection to an external server.

The first wiper 30 is a front wiper installed on the windshield.

The first wiper driving unit 150 controls the driving of the first wiper 30 in response to control commands from the control unit 110. The first wiper driving unit 150 may operate in response to an input from the wiper switch 131 or a detection signal from the rain sensor 121. The first wiper driving unit 150 turns on and off the operation of the first wiper 30 and controls the operating speed of the wiper.

The second wiper 20 is a side wiper installed on the side mirror 10. The second wiper 20 is installed on the left side mirror and the right side mirror, respectively.

The second wiper driver 160 controls the operation of the side wiper, which is the second wiper 20, in response to the control command from the controller 110.

When a control command is input, the second wiper driving unit 160 applies operating power to the driving motor so that the second wiper 20 operates. Additionally, the second wiper driving unit 160 controls the operating speed of the second wiper 20.

The second wiper 20 operates by operating power applied to the drive motor, and its basic operation is to reciprocate once.

When the amount of rainwater is large in response to the detection signal of the rain sensor 121, the second wiper 20 may operate a certain number of times continuously or at certain time intervals by the second wiper driving unit 160.

When a signal is input by the wiper switch 131, the control unit 110 operates the first wiper driver 150 or the second wiper so that the first wiper 30 or the second wiper 20 operates in response to the input signal. A control command is applied to the driving unit 160.

The control unit 110 determines whether the first wiper 30 and the second wiper 20 are set to operate simultaneously in response to an input signal from the wiper switch 131.

In response to the input signal from the wiper switch 131, the control unit 110 applies a control command to the first wiper driving unit 150 to operate the first wiper 30 according to the set speed.

Additionally, the control unit 110 applies a control command to the second wiper driving unit 160 so that the second wiper 20 operates once according to the setting.

Meanwhile, when the second wiper 20 is set to operate by the wiper switch 131, the control unit 110 applies a control command to the second wiper driving unit 160. The second wiper 20 operates by the second wiper driving unit 160.

The second wiper 20 has a basic operation of reciprocating once, and the number of operations or operation cycle can be changed according to the control command, so that it can operate repeatedly a certain number of times or periodically in a certain time unit.

Since the mirror 11 is protected by the housing 12 of the side mirror 10, there is less moisture compared to the front glass, so one reciprocating movement can be set as the basic operation. In some cases, two reciprocating movements can be set as the basic motion.

When the wiper switch 131 is set to automatic, the control unit 110 calculates whether the wiper is operating and the operating speed in response to the detection signal from the rain sensor 121, and applies a control command.

The control unit 110 controls the first wiper drive unit 150 or the second wiper drive unit 160 to operate the first wiper 30 or the second wiper 20 in response to the detection signal from the rain sensor 121. Authorize the command.

When the rain sensor 121 is installed on the windshield, the control unit 110 sets the operating speed of the first wiper 30 in response to the amount of rainwater and applies it to the first wiper driving unit 150.

When rain is detected by the rain sensor 121, the control unit 110 operates the first wiper 30 and applies a control command to the second wiper driver 160 to operate the second wiper 20.

Additionally, the control unit 110 causes the second wiper 20 to operate once according to the amount of rain detected by the rain sensor 121. When the detected amount of rainwater is above a certain value, the control unit 110 issues a control command to cause the second wiper 20 to operate repeatedly or periodically a certain number of times.

Figure 4 is a diagram showing a switch of a wiper control device according to an embodiment of the present invention.

As shown in (a) of FIG. 4, the wiper switch 131 may be placed on one side of the steering wheel (not shown) of the car 1 and used as a multi-function switch to input a signal.

The wiper switch 131 is operated up and down to set any one of the following modes: MIST, OFF, AUTO, low speed (LO), high speed (HI), and side mirror wiper mode (SMW). do.

Additionally, the wiper switch 131 sets the operating speed of the wiper by rotating the wiper switch 131 in a set mode. The operating speed is adjusted within the set mode.

When the wiper switch 131 is set to AUTO, the control unit 110 sets the operation of the first wiper 30 and the second wiper 20 in response to the detection signal from the rain sensor 121, and operates Calculate the speed and apply the control command.

When the wiper switch 131 is set to OFF, the first wiper 30 and the second wiper 20 do not operate regardless of the detection signal from the rain sensor 121.

When the wiper switch 131 is set to a low or high speed mode, the first wiper 30 operates correspondingly.

The control unit 110 may operate the second wiper 20 once when the first wiper 30 is operated.

For example, the control unit 110 operates the second wiper 20 once in a low-speed mode, and controls the second wiper 20 to operate repeatedly a certain number of times or at certain time intervals in a high-speed mode. In some cases, the control unit 110 may stop the second wiper 20 in a low-speed mode and operate the second wiper 20 once in a high-speed mode.

Meanwhile, when the wiper switch 131 is set to the side mirror wiper mode (SMW) 131a, the first wiper 30 stops and the second wiper 20 operates.

As shown in (b) of FIG. 4, the wiper switch 131 can set the first side mirror wiper mode (SMW1) 131b and the second side mirror wiper mode (SMW2) 131c.

The first side mirror wiper mode (SMW1) (131b) and the second side mirror wiper mode (SMW2) (131c) are modes in which the first wiper 30 stops and the second wiper 20 operates. The operating speed of the side wiper, which is the wiper 20, is set differently.

When the first side mirror wiper mode (SMW1) 131b is set, the side wiper 20 reciprocates once and then stops.

When the second side mirror wiper mode (SMW2) 131c is set, the side wiper 20 may operate repeatedly a certain number of times or may operate periodically at certain time intervals.

As shown in (c) of FIG. 4, the input unit 130 may further include a side wiper button 132.

When the side wiper button 132 is input, the control unit 110 applies a control command to the second wiper driving unit 160 to operate the side wiper 20.

FIG. 5 is a diagram referenced in explaining setting data for the operation of the switch of FIG. 4.

As shown in FIG. 5, a mode is set for each position in response to the operation of the wiper switch 131.

Depending on the position of the wiper switch (1310), 0x0 is off, 0x1 is auto, 0x2 is low speed, 0x3 is high speed, and 0x4 is side mirror wiper mode.

When the automatic mode of 0x1 is set, it operates automatically according to the detection value of the rain sensor.

The control unit 110 receives a position-specific signal from the wiper switch 131 and operates at least one of the first wiper 30 and the second wiper 20 according to the setting.

Figure 6 is a flowchart showing a control method of a wiper control device according to an embodiment of the present invention.

As shown in FIG. 6, when the wiper switch 131 is input, an input signal is applied to the control unit 110 according to the set mode.

The control unit 110 determines whether the mode for the side wiper 20 is set in response to the input signal (S320).

When in the mode for the side wiper 20, that is, when the side mirror wiper mode (SMW) is set, the control unit 110 issues a control command to operate the second wiper 20 while stopping the first wiper 30. is generated and applied to the second wiper driving unit 160.

The second wiper 20 operates once and reciprocates to remove moisture from the side mirror 10 (S360).

After operating once, the second wiper 20 returns to the reference position, aligns the position, and then stops operating (S370).

When the first side mirror wiper mode (SMW1) or the second side mirror wiper mode (SMW2) is included by the wiper switch 131, the control unit 110 operates the second wiper 20 in response to each mode. .

When the mode is not for the side wiper 20, the control unit 110 operates the first wiper drive unit 150 or the second wiper drive unit so that the first wiper 30 or the second wiper 20 operates in response to the set mode. Authorize the control command with (160).

When the wiper switch 131 is in the off mode, the control unit 110 prevents the wiper from operating, and when the wiper switch 131 is in the low-speed or high-speed mode, it operates the first wiper 30 in response to the mode.

Meanwhile, when the first wiper 30 operates in a high-speed mode, the control unit 110 may apply a control command to the second wiper driver 160 to operate the second wiper 20 once.

When the wiper switch 131 is in automatic mode, the control unit 110 generates a control command according to a detection signal from the rain sensor 121 and operates the first wiper 30 or the second wiper 20.

When rainwater is detected by the rain sensor 121 (S330), the control unit 110 generates a control command to operate the first wiper 30 and applies it to the first wiper driving unit 150. The first wiper 30 operates at a set operating speed (S350).

When the first wiper 30 operates, the control unit 110 generates a control command to operate the second wiper 20 after a certain period of time and applies it to the second wiper driving unit 160. The second wiper 20 is operated once by the second wiper driving unit 160 (S360). The first wiper 30 operates according to the settings until the operation is turned off.

After operating once, the second wiper 20 returns to the reference position, aligns the position, and then stops operating (S370).

If the amount of rainwater detected by the rain sensor 121 is more than a certain value, the control unit 110 generates a control command so that the second wiper 20 operates repeatedly multiple times or operates periodically, and operates the second wiper driver 20. It can be authorized by (160).

Therefore, in the present invention, a side wiper is provided on a side mirror, and moisture from the side mirror can be removed by operating the side wiper according to the mode setting of the wiper switch. In addition, the present invention can secure visibility through the side mirror while driving by driving the side wipers together with the driving of the first wiper on the front when rainwater is detected, or by allowing the side wipers to operate as the amount of rainwater increases.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand.

Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

1: car
10: side mirror 11: mirror
12: Housing 20: Second wiper (side wiper)
21: wiper 23: rotation axis
30: first wiper (front wiper) 110: control unit
120: detection unit 121: rain sensor
130: input unit 131: wiper switch
140: output unit 150: first wiper driving unit
160: second wiper driving unit 170: communication unit
180: data unit

Claims (14)

A first wiper installed on the windshield;
a second wiper installed on the side mirror to remove moisture from the side mirror;
a wiper switch that sets a mode for the first wiper and the second wiper; and
a control unit that controls at least one of the first wiper and the second wiper to operate in response to the mode set by the wiper switch; Including,
When the mode for the second wiper is set by the wiper switch, the control unit controls the first wiper to stop and the second wiper to operate,
The control unit,
When the mode for the first wiper is set by the wiper switch, the first wiper is controlled to operate at a set speed, and then the second wiper is controlled to operate once while the first wiper is operating,
When the first wiper operates in high-speed mode by the wiper switch, the second wiper is controlled to operate repeatedly a certain number of times or to operate in a certain time unit while the first wiper is operating. Wiper control device. According to claim 1,
a second wiper driving unit that controls driving so that the second wiper operates in response to a control command from the control unit; It further includes,
A wiper control device for an automobile, wherein the second wiper reciprocates once by the second wiper driving unit. delete delete According to claim 1,
Rain sensor that detects rainwater; It further includes,
The control unit controls the first wiper in response to the amount of rain detected by the rain sensor,
An automobile wiper, characterized in that one of the number of operations and the operation cycle of the second wiper is changed in response to the amount of rainwater, and the second wiper is controlled to operate repeatedly a certain number of times or to operate in a certain time unit. Control device. According to claim 1,
The second wiper is disposed on one side of the side mirror, so that one surface is in contact with the mirror of the side mirror, and reciprocates up and down or left and right about the rotation axis, and removes moisture from the side mirror. A wiper control device for an automobile, characterized in that it is removed. According to claim 1,
The second wiper is an air wiper disposed on one side of the side mirror and removes moisture from the side mirror by discharging air at a certain pressure. According to claim 1,
The wiper switch is for the second wiper,
Includes a first side mirror wiper mode and a second side mirror wiper mode,
The wiper control device for a vehicle, wherein the control unit changes one of the number of operations and the operation cycle of the second wiper in response to the first side mirror wiper mode and the second side mirror wiper mode. A wiper switch inputting a signal for one mode of a first wiper installed on the windshield and a second wiper installed on the side mirror;
In response to the mode of the wiper switch, a control unit controlling at least one of the first wiper and the second wiper to operate;
When the mode for the first wiper is set, operating the first wiper to remove moisture from the windshield in response to a control command from the controller; and
When the mode for the second wiper is set, operating the second wiper to remove moisture from the side mirror in response to a control command from the controller; Including,
When the mode for the first wiper is set, operating the second wiper once while the first wiper is operating; and
When the high-speed mode for the first wiper is set, operating the second wiper repeatedly a certain number of times or in a certain time unit while the first wiper is operating; A control method of an automobile wiper control device further comprising: According to clause 9,
A control method of an automobile wiper control device, wherein when the mode for the second wiper is set, the second wiper reciprocates once. delete delete According to clause 9,
A rain sensor detecting the amount of rainwater;
changing the operating speed of the first wiper in response to the amount of rainwater;
operating the first wiper at the changed operating speed;
changing one of the number of operations and the operation cycle of the second wiper in response to the amount of rainwater; and
Operating the second wiper repeatedly a certain number of times or operating the second wiper in certain time units; A control method of an automobile wiper control device further comprising: According to clause 9,
When the first side mirror wiper mode for the second wiper is set by the wiper switch, operating the second wiper once; and
When the second side mirror wiper mode is set, operating the second wiper repeatedly a certain number of times or in a certain time unit; A control method of an automobile wiper control device further comprising:

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