KR100891369B1 - Electronic control device of hydraulic equipment - Google Patents

Abstract

An electronic control unit of the hydraulic equipment is provided to control the operation of the construction machine, the construction equipment, and the civil engineering machine since the data inputted with various programs is computed. An electronic control unit(ECU)(100) of the hydraulic equipment comprises a main controller(20) inputting the operating signal and various kinds of setup function of the electronic joystick(10) controlling a boom(201) or an arm(202) of the hydraulic equipment, an angle sensor(30) installed at the joint of boom or arm, a pressure sensor(40) which is installed at the cylinder of boom or arm, and which checks the pressure, an expansion controller(60) receiving the setup function of the main controller and delivering the function to the hydraulic control valve(50) so that the hydraulic operation is done.

Description

Electronic control device of hydraulic equipment

The present invention relates to an electronic control device for hydraulic equipment, and in particular, to prevent the impact and shock phenomenon between the cylinder rod and the rod of the construction machinery, construction equipment, etc. to operate and work using hydraulic pressure, boom or arm for various operations, It is possible to repeat the work by inputting the working position of the bucket, and to determine the weight of the workpiece to prevent the breakage and overload of the mechanical elements and to reduce the fatigue of the operator, the electronic control device of the hydraulic equipment to increase the work efficiency.

In general, construction machinery, construction equipment or civil engineering equipment (hereinafter referred to as 'hydraulic equipment') is a general term for machinery used in civil engineering or building construction, and its type should be very diverse and suitable for moving, with less trouble and durability. While it is required to be excellent, etc. on the other hand, the use of an electronic control unit (Electronic Control Unit, ECU) in the hydraulic equipment to ensure the convenience of work, precise control and stability has become common.

Here, the electronic control device is further developed, and instead of controlling the construction machine as one electronic control device, the technology of classifying the work equipment of the construction machine by each module unit and controlling it using a plurality of ECUs is a hydraulic pressure. It is being applied to equipment.

In the conventional hydraulic equipment, when a driver operates the hydraulic joystick in the driver's seat, the hydraulic signal is transmitted to the hydraulic control valve to operate the cylinder, but the cylinder of the hydraulic equipment is operated at maximum. / Out)), the contact between the structures constituting the cylinder is generated, due to the impact generated through this contact due to the shaking of the vehicle, the driver's fatigue due to the vehicle shaking, the fatigue of the frame constituting the hydraulic equipment Durability deterioration, there was a problem that noise occurs.

In addition, the conventional hydraulic equipment has to operate the actuator of the hydraulic equipment through the continuous adjustment of the hydraulic joystick of the driver, and the cycle timing period in which the operation proceeds for frequent repetitive tasks by requiring the continuous operation of the driver even under the same repetitive operating conditions. There was a problem that increases and the fatigue of the worker is increased.

In addition, in the conventional hydraulic equipment, when the bucket contains the work object, the work frequently occurs to move the cylinder so that there is no leakage of the work object. In the movement of the cylinder, the efficiency and stability of the work according to the operator's skill Since it is determined that the skilled work can be achieved through the combined operation of the hydraulic joystick, there was also a problem that increases the fatigue of the driver.

In addition, some hydraulic equipment has a problem in that additional manufacturing costs for installing a separate additional structure because there is a case in which the manufacturer of the equipment to make the horizontal movement of the cylinder mechanically.

In addition, the conventional hydraulic equipment has a limitation on the maximum working load that is determined at the time of manufacturing the equipment, but working with the driver's sense without knowing how much load of the actual work object, the hydraulic equipment against the overload of the operating conditions In order to reduce the durability and stability of the work or to set the load of the work object below the work allowable load for the purpose of stability to work for a longer time is required to increase the fatigue of the driver.

Accordingly, the present invention has been made in view of the problems of the prior art as described above, and an electronic control apparatus for hydraulic equipment capable of controlling the operation of construction machinery, construction equipment, and civil engineering machinery by calculating data input by various types of programs. The purpose is to provide.

In addition, another object of the present invention is to remove the minute vibration caused by the electrical signal according to the electronic control.

In addition, another object of the present invention is to read the distance of the cylinder rod in / out in the reciprocating motion in the cylinder at the angle of refraction to perform functions such as damping prevention, excavation position setting, dumping position setting, horizontal setting, etc. have.

In addition, another object of the present invention is to check the pressure of the cylinder to measure the weight of the workpiece except the weight of the equipment to prevent overload on the equipment.

In addition, another object of the present invention is to increase the ease of installation because the machining attachment method using a bolt when attaching the angle sensor can be installed simply by using a magnetic process is unnecessary.

In order to achieve the above object, the present invention, in the electronic control device of the hydraulic equipment, receives the operation input signal of the electronic joystick connected to adjust the boom or the arm of the hydraulic equipment, the operation and display, input the operation setting signal by the driver Calculated by the main controller, the angle sensor installed on the joint of the boom or the arm operated by the electronic joystick, the pressure sensor installed on the cylinder of the boom or the arm operated by the electronic joystick, the angle sensor and the pressure sensor It is characterized by consisting of an expansion controller for operating the hydraulic control valve to control the operation of the cylinder by collecting the data to the main controller and the CAN communication method to the transmission and receiving the operation input signal of the electronic joystick.

As a preferred embodiment of the present invention, the main controller is characterized in that it further comprises a noise filter to filter the fine signal transmitted due to the shake due to external influence when the electronic joystick is inoperative.

As a preferred embodiment of the present invention, the main controller is characterized in that it further comprises a short message service terminal capable of transmitting and receiving the failure and damage, parts replacement cycle with the manager.

According to a preferred embodiment of the present invention, the angle sensor is to determine the angle of refraction of the boom or arm cylinder end damping setting to prevent the cylinder rod in / out of the inside of the cylinder collision with the cylinder end, the cylinder rod in It is characterized in that it is configured to perform a function such as setting the excavation position by determining the / out distance, setting the dump position of the bucket by determining the maximum in / out distance of the cylinder rod, the horizontal setting to prevent the leakage of the workpiece.

As a preferred embodiment of the present invention, the pressure sensor is characterized in that it is configured to determine the weight of the workpiece except for the weight of the boom or the arm and the bucket by checking the pressure of the cylinder.

According to a preferred embodiment of the present invention, when the function set in the main controller is delivered to the expansion controller, the expansion controller converts the received setting function into an electrical signal and sends it to the hydraulic controller to receive the transmitted electrical signal. The solenoid valve for controlling the pressure of the pilot flow path is characterized in that it further comprises.

According to a preferred embodiment of the present invention, the angle sensor is configured to further include a magnetic attached to the circumference of the sensor body except for the portion where the measuring tip is coupled to the rotating shaft of the boom or the arm to facilitate installation on the boom or the arm It provides an electronic control device of the hydraulic equipment characterized by.

As described above, the present invention can control the operation of construction machinery, construction equipment, and civil machinery by calculating data inputted by various types of programs, thereby selectively executing only complex tasks and necessary tasks, thereby improving work efficiency. It is effective to let.

In addition, there is an effect of improving the stabilized operation performance by removing the small vibration generated by the electrical signal according to the electronic control.

In addition, by reading the distance of the cylinder rod in / out by the reciprocating motion from the cylinder at the angle of refraction, it is possible to perform functions such as damping prevention, excavation position setting, dumping position setting, horizontal setting, etc. The frequency of operation is reduced, which has the effect of reducing fatigue.

In addition, by checking the pressure of the cylinder to measure the weight of the workpiece except the weight of the equipment to prevent the overload of the equipment to prevent the failure and damage of the equipment there is an effect that can fundamentally eliminate the occurrence of maintenance costs.

In addition, the process attachment method using a bolt when attaching the angle sensor can be installed simply by using a magnetic, there is an effect that the ease of installation is increased because the processing step for installation is unnecessary.

The preferred embodiment of the present invention as described above will be described in detail based on the accompanying drawings.

1 and 2, the electronic control device of the hydraulic equipment of the present invention is a main controller for inputting the operation signal and various setting functions of the electronic joystick 10 for adjusting the boom 201 or the arm 202. 20, the angle sensor 30 installed on the joint portion of the boom 201 or the arm 202, the pressure sensor 40, the angle to check the pressure of the cylinder 205 of the boom 201 or arm 202, the angle Electronic control by expansion controller 60 for collecting and transmitting data of sensor 20 and pressure sensor 40 and receiving setting function of main controller 20 to transfer to hydraulic control valve 50 for hydraulic operation. The apparatus 100 is configured.

The main controller 20 receives the operation input signal of the electronic joystick 10 connected to adjust the boom 201 or the arm 202 of the hydraulic equipment 200, and input the operation and display, the operation setting signal by the driver Is configured to.

In addition, the main controller 20 is installed inside the cab so that the driver who operates the hydraulic equipment 200 can be easily identified, and the driver who adjusts the hydraulic equipment 200 for various setting information, measurement information, operation state, and the like. The display window is formed so as to be identified, and setting function buttons for controlling the operation and status of the hydraulic equipment 200 are formed around the display window, and are configured with other option buttons. It is a built-in microprocessor capable of computing and sending and receiving.

In addition, the main controller 20 further includes a noise filter 21 to filter a minute signal transmitted by shaking due to an external influence when the electronic joystick 10 is inoperative.

At this time, the noise filter 21 is installed in the main controller 20 in order to improve the operating characteristics of the unstable hydraulic equipment 200, and filters the electric signal for the minute vibration transmitted from the electronic joystick (10) It is configured to reduce the unstable flow phenomenon of the hydraulic equipment 200 causing fine trembling transmitted from the driver by removing the trembling by programming in advance.

That is, the driver driving the hydraulic equipment 200 is always kept holding the electronic joystick 10, at this time, the driver is shaken due to the shaking of the hydraulic equipment 200 to shake the electronic joystick 10 together. This results in unstable signals.

Thus, the electronic joystick 10 operated in an unstable state corresponds to the Hz generated at the correct operation by comparing the Hz at the unstable operation with the Hz at the correct operation to read the electronic joystick 10 operated by the correct operation. Hz, which is not, is filtered by the noise filter 21.

In addition, the main controller 20 is configured to further include a short message service terminal (SMS) 22 capable of transmitting and receiving the failure and damage, the replacement cycle of the parts with the manager terminal 300.

Here, the short message service terminal 22 is configured to be able to send / receive text, such as a mobile phone of the hydraulic equipment 200 and the electronic control device 100, the short message service terminal 22 and the manager terminal 300. A function of transmitting a message is provided between the driver and the driver may search for various information of the hydraulic equipment 200 and the electronic control apparatus 100 and select only necessary information.

In addition, the short message service terminal 22 may send or receive mail through the Internet, PC communication, etc., and additional functions are configured to receive various information retrieval services necessary for daily life.

3 to 4B, the angle sensor 30 is installed at a joint portion of the boom 201 or the arm 202 operated by the electronic joystick 10, and the boom 201 or the arm. Cylinder 205 end damping setting, cylinder rod 206 to prevent the cylinder rod 206 in / out of the cylinder 205 from colliding with the end of the cylinder 205 by grasping the refraction angle of the 202. Setting the excavation position by determining the in / out distance of), setting the dump position of the bucket 204 by determining the maximum in / out distance of the cylinder rod 206, and horizontal setting such that the work object W does not leak. The function of is configured to be performed.

In addition, the angle sensor 30 is a sensor excluding the portion where the measuring tip 32 is coupled to the rotating shaft 203 of the boom 201 or the arm 202 to facilitate installation on the boom 201 or the arm 202 A plate-shaped magnetic 31 attached to the circumference of the body 33 is further included.

At this time, the measuring tip 32 of the angle sensor 30 is coupled to the center of the rotating shaft 203 is connected to the boom 201 and the arm 202 to rotate, the front of the sensor body 33 measuring tip ( 32 is exposed to the front of the magnetic 31 is easy to install and dismantle by attaching the sensor body 33 to the body surface of the boom 201 or the arm 202 by using the magnetic of the magnetic 31 It is configured to, and may be configured to be installed using a bolt or welding method as another attachment method.

As shown in FIG. 5, the pressure sensor 40 is installed in the cylinder 205 of the boom 201 or the arm 202 which is operated by the electronic joystick 10, and the pressure of the cylinder 205 is increased. It is configured to determine the weight of the workpiece (W) excluding the weight of the boom 201 or the arm 202 and the bucket 204 by checking.

Here, the pressure sensor 40 is installed to branch to the hydraulic oil line supplied to the cylinder 205 through the hydraulic control valve 50.

The expansion controller 60 collects the data calculated from the angle sensor 30, the pressure sensor 40 and transmits to the main controller 20 in a CAN communication method and receives the operation input signal of the electronic joystick 10 cylinder It is configured to operate the hydraulic control valve 50 for controlling the operation of the (205).

In this case, when the CAN communication method is used, wiring for transferring information between the main controller 20 and the expansion controller 60 is simplified.

In this case, when the function set in the main controller 20 is transmitted to the expansion controller 60, the hydraulic control valve 50 converts the transmitted setting function into an electrical signal and transmits the converted function. The solenoid valve 51 is coupled to the pilot flow path to receive the electrical signal.

Referring to the operation of the present invention configured as described above are as follows.

First, the driver of the hydraulic equipment 200 in which the electronic control apparatus 100 is installed, inputs a function and a setting suitable for a task and a function to be performed to the main controller 20, and then operates the electronic joystick 10 to operate the hydraulic equipment 200. Boom 201 or arm 202 of the ().

At the same time, the information input to the main controller 20 is transmitted to the solenoid valve 51 of the hydraulic control valve 50 for the operation of the hydraulic pressure, when the operation of the electronic joystick 10, the operation information is the main controller 20 The boom 201 or the arm 202 of the hydraulic equipment 200 is operated by the hydraulic oil supplied after being delivered to the hydraulic control valve 50 through.

In this way, when the operation information of the electronic joystick 10 for operating the operation boom 201 or the arm 202 is transmitted to the main controller 20, the electrical signal for the minute shaking due to the instability of the current noise filter 21 It can be filtered by) has the advantage of improving the operating performance of the hydraulic equipment (200).

As shown in FIG. 3, an example in which the angle sensor 30 is applied to an excavator among the functions of the hydraulic equipment 200 that can be executed using the electronic control apparatus 100 will be described below.

1. Cylinder end damping function

First, the cylinder end damping function is a function of controlling the operating characteristics of the cylinder 205 constituting the actuator mounted on the hydraulic equipment 200. In the case of the hydraulic equipment 200 of the conventional hydraulic control method, the hydraulic pressure transmitted through the hydraulic joystick The signal is transmitted to the hydraulic control valve 50 to operate the cylinder 205.

The operation principle of the cylinder end damping function is to calculate the maximum / minimum angle by using the angle sensor 30 that can check the angle formed by the boom 201 and the arm 202 of the hydraulic equipment 200 and then expand the controller ( The controller 60 transmits information to the main controller 20 in real time, and operates the electronic joystick 10 to provide an electric signal for moving the cylinder 205 of the hydraulic equipment 200 to a desired operation mode by the driver. Deliver to 20.

As such, the signals of the angle sensor 30 and the electronic joystick 10 are used to calculate the output of the electronically controlled hydraulic control valve 50 according to the position detection of the cylinder 205 using a calculation method pre-programmed in the main controller 20. In this case, in the normal operation of the cylinder 205, the output of the electronically controlled hydraulic control valve 50 is set to 100%, and when the maximum / minimum operating position of the cylinder 205 is near, the electronically controlled hydraulic control valve 50 is determined. Reduce the output of the hydraulic equipment according to the characteristics of the 200, and set to 1% or more.

That is, when the cylinder rod 206 of the cylinder 205 is operated (in / out) to the maximum when the boom 201 and the arm 202 operate, contact between the structures constituting the cylinder 205 occurs. The shaking of the hydraulic equipment 200 generated by the impact generated through the contact, the increase of the driver's fatigue due to the shaking of the hydraulic equipment 200, the boom 201 or the arm 202 constituting the hydraulic equipment 200 There is a function to improve durability, noise, etc. due to increased frame fatigue.

2. Automatic excavation position setting function (Return to dig)

First, the automatic excavation position setting function can be arbitrarily set the position of the cylinder 205 desired by the driver because the operating conditions of the cylinder 205 may vary depending on the characteristics and working environment of the driver operating the hydraulic equipment 200, A program is pre-programmed inside the main controller 20 to selectively activate the automatic operation function for the set position of the cylinder 205.

The operating principle of the automatic excavation position setting function is the position of the cylinder 205 provided in the main controller 20 after the driver moves the cylinder 205 of the hydraulic equipment 200 to a desired position by using the electronic joystick 10. Press the save button to store the position of the cylinder 205 in the main controller 20. At this time, the stored information stores the position information of the cylinder 205 for the excavation work desired by the driver through the angle sensor 30 that can measure the angle of the boom 201 or the arm 202 in the main controller 20. do.

In this way, after the position of the cylinder 205 is stored in the main controller 20, the driver may select activation / deactivation by using a function button provided in the main controller 20 to activate the auto-excavation mode. If is selected to transmit a signal for starting the operation of the cylinder 205 through the electronic joystick 10 to the main controller 20 in a pre-programmed condition, the main controller 20 is the cylinder 205 to the position previously input by the driver. ) Is located through automatic operation. At this time, the angle sensor 30 for detecting the angle of the boom 201 and the arm 202 is transmitting the position information of the cylinder 205 to the main controller 20 in real time, the same position as the position input by the driver When the cylinder 205 is positioned, each output of the electronically controlled hydraulic control valve 50 that is responsible for the operation of the cylinder 205 is changed to 0%.

That is, several hydraulic cylinders 205 are used to determine the position of the cylinder 205 of the hydraulic equipment 200. In the present invention, the cylinder 205 according to the priority programmed in advance in the main controller 20. By determining the output priority of the can be performed by moving the cylinder 205 to the target position desired by the driver.

In this way, the automatic operation through the program for frequent repetitive work can be reduced to reduce the cycle time for each operation proceeds, reducing the fatigue of the operator and easier operation of the hydraulic equipment 200, the hydraulic cylinder 205 Since the operation is made automatically, the driver has the advantage of providing the convenience to operate the other functions of the hydraulic equipment (200).

3. Automatic dumping position setting function of boom cylinder (Boom up)

First, the automatic dumping position setting function of the boom cylinder is set to a position where the driver can operate the electronic joystick 10 for the normal operation of the cylinder 205 dumping, depending on the working environment and the object for the work to be dumped Since the position is different, the driver is set in advance in the main controller 20 to use the program. The cylinder 205 is moved to the desired dumping position after the cylinder 205 through the function button provided in the main controller 20. The dumping position of the thrust) is stored in the main controller 20, and the position information detected by the angle sensor 30 for detecting the position of the cylinder 205 for determining the position of the cylinder 205 is stored in the main controller 20. The information converted into electrical signals is stored.

The operation principle of the automatic dumping position setting function of the boom cylinder can be activated / deactivated by the driver for the automatic dumping position setting function, and when the activation is selected, the electronically controlled hydraulic control by the program stored in the main controller 20 in advance. An electric signal for operating the valve 50 is generated, and the cylinder 205 is moved to a previously stored position through the electronically controlled hydraulic control valve 50. At this time, the angle detection signal of the cylinder 205 generated in real time is transmitted to the main controller 20 through the angle sensor 30, and when the same as the position stored by the driver, the electronic control by the control of the main controller 20 The output of the hydraulic control valve 50 is optionally changed to 0%.

That is, by using the automatic dumping position setting function of the boom cylinder can be easily operated through the automatic operation function, reducing the fatigue of the operator and shortening the working time is generated, the driver for the additional operation of the hydraulic equipment (200) There is an advantage to be active.

4. Bucket cylinder automatic dump position setting function

First, the automatic dump position setting function of the bucket cylinder is an automatic function to help control the repetitive position of the cylinder 205 frequently generated during the operation of the existing hydraulic equipment 200.

The operation principle of the automatic dump position setting function of the bucket cylinder is to set the cylinder 205 to the dumpable position by the driver through the electronic joystick (10). At this time, since the dumping position is different according to the working environment and the object for the work, the dumping position of the cylinder 205 is changed through the storage button provided in the main controller 20 so that the driver can dump the cylinder 205 desired. In the controller 20, the main controller 20 detects the position of the cylinder 205 with the angle sensor 30 to determine the position of the cylinder 205, and then converts the detected position information into an electrical signal. Stored.

The automatic dump position setting of the bucket cylinder can be activated / deactivated by the driver for the automatic dumping position setting function, and when the activation is selected, the electronically controlled hydraulic control valve 50 is operated by pre-stored operations in the main controller 20. The electrical signal for operating the is generated, and through the electronically controlled hydraulic control valve 50 to move the cylinder 205 to a previously stored position. At this time, the position detection signal of the cylinder 205 generated in real time is transmitted to the main controller 20 through the angle sensor 30, and if the same as the position stored by the driver, the electronic control by the control of the main controller 20 The output of the hydraulic control valve 50 is optionally changed to 0%.

As a result, it is possible to operate more easily compared to the operation of the existing hydraulic equipment 200 through the automatic operation function, reducing the fatigue of the operator and reducing the working time, and additional operation of the hydraulic equipment 200 is performed. The driver has the advantage to be active.

5. Cylinder lift function

First, in the case of the hydraulic equipment 200, when the hydraulic equipment 200 contains the workpiece W in the bucket 204, the operation of moving the bucket 204 is performed so that there is no leakage of the workpiece W. It is to.

The operation principle of the cylinder level keeping function is a main controller 20 capable of calculating an electrical signal generated by the angle sensor 30 capable of detecting the position of each cylinder 205 for determining the position of the bucket 204. And an electronically controlled hydraulic control valve 50 that controls each cylinder 205 by the expansion controller 60, the activation / deactivation of the function can be selected and operated by the driver. For normal operation, the position information of the cylinder 205 is transmitted to the main controller 20 through the angle sensor 30 in real time, and then the electronically controlled hydraulic control valve 50 through the result calculated by the main controller 20. It is possible to maintain the level of the bucket 204 by controlling the operation.

As a result, the cylinder level keeping function has an advantage of minimizing the effect of the operator's skill level on the work result when the calculation method pre-programmed in the main controller 20 is used, even when one electronic joystick 10 is operated. Since the cylinder 205 necessary for controlling the position of the cylinder 205 is automatically controlled simultaneously by the electronically controlled hydraulic control valve 50, there is an advantage of reducing the fatigue of the driver in performing the work.

In addition, in some hydraulic equipment 200, a separate device may be manufactured so that the cylinder 205 can be horizontally operated mechanically, but when the cylinder 205 horizontal maintenance function of the present invention is applied, Since there is no need for an additional structure for horizontal movement, there is an advantage that can reduce the cost required for manufacturing equipment.

As shown in FIG. 5, an example in which the pressure sensor 40 is applied to a loader among the functions of the hydraulic equipment 200 that can be executed using the electronic control apparatus 100 may include a weighing function of a workpiece. Looking at it as follows.

First, the work load measurement function is to determine the maximum work load that is determined at the time of manufacturing the hydraulic equipment (200).

The operation principle of the work load measurement function is selected by the driver to enable / disable the pressure sensor that detects the pressure of the cylinder 205 when the work function of the work W is activated by the driver. The load information of the cylinder 205 is transmitted to the main controller 20 in real time through the 40, and the main controller receives the load of the workpiece W added to the cylinder 205 calculated through the calculation of the transferred information. The load of the workpiece W is displayed through the display built in the 20. At this time, the displayed load value is programmed in advance so that only the load value of the pure work object W is displayed except for the empty load value of the bucket 204.

Thus, when the load measurement function is used using the load measurement function of the workpiece, the operation of the equipment can be more efficiently performed than the existing hydraulic equipment 200 because the load of the workpiece W can be accurately measured to proceed with the appropriate load. It is possible, and there is an advantage that can be expected to increase the work stability.

As a result, the use of the electronic control device 100 of the present invention has the advantage that the hydraulic equipment 100 can be precisely and accurately manipulated and controlled.

In addition, the combined operation of the driver to operate the hydraulic equipment 100 is possible, saving the operation time through automatic control for the repeated operation of the hydraulic equipment 100 has the advantage of reducing the fatigue of the driver.

In addition, the precision of the operation is improved by preventing unnecessary operation through filtering on unstable signals, and the management cost and management time are reduced by sending and receiving mutual data and information with the administrator through the short text message terminal 22. Is there.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and is not limited to the spirit of the present invention. Various changes and modifications can be made by those who have

1 is an overall configuration diagram of an electronic control apparatus according to the present invention;

2 is a flowchart of an electronic control apparatus according to the present invention;

3 is a configuration diagram in which an angle sensor is applied to determine a cylinder rod in / out distance using an electronic controller;

4A and 4B are exploded perspective views and combined perspective views to which an angle sensor is applied as an example of an boom and an arm of an excavator;

5 is a configuration diagram in which a pressure sensor is applied to determine the weight of a heavy object using an electronic control apparatus.

<Description of Symbols for Main Parts of Drawings>

10: electronic joystick 20: main controller

21: Noise filter 30: Angle sensor

31: magnetic 32: measuring tip

33: sensor body 40: pressure sensor

50: hydraulic control valve 60: expansion controller

100: electronic control device 200: hydraulic equipment

201: Boom 202: Arm

203: shaft 204: bucket

205: cylinder 206: cylinder rod

W: Work object

Claims (7)

delete The main controller 20 receives the operation input signal of the electronic joystick 10 connected to adjust the boom 201 or the arm 202 of the hydraulic equipment 200 and inputs operation and display signals and operation setting signals by the driver. , The angle sensor 30 installed at the joint of the boom 201 or the arm 202 operated by the electronic joystick 10, and the boom 201 or the arm 202 operated by the electronic joystick 10. The pressure sensor 40, the angle sensor 30, and the pressure sensor 40 installed in the cylinder 205 of the data collected by the data transmission to the main controller 20 in the CAN communication method and the electronic joystick (10) In the electronic control device of the hydraulic equipment consisting of an expansion controller 60 for operating the hydraulic control valve 50 for controlling the operation of the cylinder 205 receives the operation input signal of the, The main controller 20, When the electronic joystick 10 is not operated, the hertz (Hz) during unstable operation and the hertz (Hz) during correct operation that are transmitted due to the shake due to external influences are compared. Electronic control device for hydraulic equipment, characterized in that the noise filter 21 is built to reduce the unstable flow phenomenon of the hydraulic equipment (200). delete The main controller 20 receives the operation input signal of the electronic joystick 10 connected to adjust the boom 201 or the arm 202 of the hydraulic equipment 200 and inputs operation and display signals and operation setting signals by the driver. , The angle sensor 30 installed at the joint of the boom 201 or the arm 202 operated by the electronic joystick 10, and the boom 201 or the arm 202 operated by the electronic joystick 10. The pressure sensor 40, the angle sensor 30, and the pressure sensor 40 installed in the cylinder 205 of the data collected by the data transmission to the main controller 20 in the CAN communication method and the electronic joystick (10) In the electronic control device of the hydraulic equipment consisting of an expansion controller 60 for operating the hydraulic control valve 50 for controlling the operation of the cylinder 205 receives the operation input signal of the, The angle sensor 30 detects the angle of refraction of the boom 201 or the arm 202 so that the cylinder rod 206 in / out of the cylinder 205 does not collide with the end of the cylinder 205. Setting the end damping of the cylinder 205, determining the excavation position by determining the in / out distance of the cylinder rod 206, setting the dump position of the bucket 204 by determining the maximum in / out distance of the cylinder rod 206, Electronic control device of the hydraulic equipment, characterized in that configured to perform a function such as horizontal setting so that the workpiece (W) does not leak. delete delete delete

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