KR102494968B1 - Construction machinery - Google Patents

Abstract

A construction machine according to an embodiment of the present invention includes an engine, a hydraulic pump operating with rotational power of the engine and discharging hydraulic oil, and the engine and the hydraulic pump in consideration of at least one of work type, work area, and work intensity. A remote information management device in which a plurality of modes set to variously control are stored, and a control device for controlling one or more of the engine and the hydraulic pump according to a mode selected from among the plurality of modes in the remote information management device. .

Description

Construction machinery {CONSTRUCTION MACHINERY}

The present invention relates to a construction machine, and more particularly, to a construction machine that is automatically controlled to operate under appropriate operating conditions by analyzing work patterns.

Construction machinery refers to all machinery used in civil engineering or building work. In general, a construction machine has an engine and a hydraulic pump operated by power of the engine, and travels or drives various work devices with hydraulic oil discharged from the hydraulic pump.

However, the construction machine may be operated in various forms according to working conditions and driver's preference. For example, when a large amount of work needs to be performed, a driver may drive the construction machine under a high load for a long time in order to shorten the working time. In addition, extreme operations such as rapid acceleration and sudden braking may be frequently performed, which may place a lot of burden on the equipment. If the construction machine continues to work in this state, parts may be easily damaged or defects may occur, and the overall lifespan may also be reduced.

In addition, in recent years, the importance of the environment has emerged, and according to this trend, regulations on exhaust gas of construction machines are becoming more stringent.

For example, as a standard for exhaust gas emissions from construction machinery such as wheel loaders, European Union (EU) emission standards such as Stage Ⅲb and Stage IV, etc., North American emission standards Tier 4 standards, etc. are applied. .

In addition, unlike existing exhaust gas regulations that only regulate exhaust gas in a steady state, exhaust gas regulations to be applied in the future also target exhaust gas in a transition state. Under the existing regulations, since there is no regulation on exhaust gas in a transient state such as acceleration, an arbitrary amount of fuel can be injected without restrictions on the fuel injection amount during acceleration. That is, the acceleration performance of the construction machine could be forcibly increased by increasing the fuel injection amount during acceleration of the construction machine. However, according to regulations that will be applied in the future, this method can no longer be used.

Therefore, in order to prevent excessive burden from being continuously applied to the construction machine for a long time and to respond to new environmental regulations, it is preferable to drive the construction machine by driving it aggressively under a high load or by simply increasing the amount of fuel injection to increase acceleration. can't That is, in order to suppress excessive driving and improve acceleration, work loads other than the travel load among the loads applied to the engine should be reduced.

However, it is very difficult for the operator to operate the equipment individually considering the work load and the odometer load according to the working conditions.

Accordingly, manufacturers of construction machines apply and provide various work modes such as ECO mode, standard mode, and power mode to construction machines, and drivers can perform various tasks depending on driving conditions. You can work by selecting one of the modes.

Nevertheless, since the working conditions fluctuate seasonally according to climate change or seasonal fluctuations according to the change in workload, the operator manually adjusts the working mode appropriately according to the fluctuations in the working conditions in such a fluctuating working environment. There is a problem that is not easy to change.

An embodiment of the present invention provides a construction machine that is automatically controlled to operate under appropriate operating conditions by analyzing work patterns.

According to an embodiment of the present invention, the construction machine includes an engine, a hydraulic pump operating with rotational power of the engine and discharging hydraulic oil, and considering at least one of a work type, a work area, and a work intensity, the engine and the hydraulic pressure A remote information management device in which a plurality of modes set to control a pump in various ways are stored, and a control device for controlling one or more of the engine and the hydraulic pump according to a mode selected from among the plurality of modes in the remote information management device. do.

The remote information management device may store data calculated by accumulating a ratio of an idle time of the engine to a total operating time for a preset time.

The control device may gradually decrease the output of the engine and the output of the hydraulic pump as the ratio of the time the engine is idling increases.

The remote information management device may remotely exchange information with an external server or the remote information management device of another construction machine performing the same task in the same predetermined area.

If it is impossible for the remote information management device to accumulate and calculate the ratio of the time the engine is idling for a preset time due to the initial operation of the construction machine or an error in acquired information, the The remote information management device may receive data stored in the remote information management device of another construction machine performing the same task in the same predetermined area, select one of the plurality of modes, and transmit it to the control device. there is.

The plurality of modes stored in the remote information management device are set to control driving speed or fuel efficiency step by step in proportion to the ratio of the time the engine is idling, and the remote information management device determines the amount of time the engine is idling. One mode is selected from among a plurality of modes according to the current ratio, and the control device controls the engine or the hydraulic pump according to the mode selected in the remote information management device to adjust the driving speed or the fuel efficiency.

Ignoring the data calculated by accumulating the ratio of the time during which the engine was idle out of the total time during which the engine was operated for a predetermined time, a worker manipulates the remote information management device to force it into one of the plurality of modes. You can choose.

The construction machine further includes a brake pedal used for braking, and the operator inputs a password into the remote information management device while stepping on the brake pedal when the engine rotates at a predetermined number of revolutions or less, and the plurality of You can forcibly select one of the modes.

An operator may manipulate the remote information management device to change a range in which the driving speed or the fuel efficiency is adjusted in proportion to a ratio of an idle time of the engine in each of the plurality of modes.

The remote information management device may include a global positioning system (GPS), and the remote information management device may store data obtained by calculating a ratio of a driving distance measured by the satellite positioning system during an entire working time.

The remote information management device is capable of remotely exchanging information with an external server or the remote information management device of another construction machine performing the same task in the same predetermined area, and the construction machine is operated at the beginning or the work location is changed. , the remote information management device receives data stored in the remote information management device of another construction machine performing the same task in the same preset area, selects one of the plurality of modes, and selects one of the plurality of modes can be forwarded to

In addition, the plurality of modes stored in the remote information management device are set to step-by-step control of driving speed or fuel efficiency in proportion to a ratio of travel distance among the total work hours, and the remote information management device controls the total work time. selects one of a plurality of modes according to a current ratio of travel distance, and the control device controls the engine or the hydraulic pump to adjust the travel speed or the fuel efficiency according to the mode selected in the remote information management device. can

A worker may forcibly select one of the plurality of modes by manipulating the remote information management device ignoring the data of the ratio of the mileage during the entire working time.

An operator may operate the remote information management device to change a range in which the driving speed or the fuel efficiency is controlled in proportion to a ratio of a driving distance in the total working time.

In addition, the remote information management device further includes a global positioning system (GPS) for determining a current location and a geographic information system (GIS) for collecting map and terrain information, and the remote information management device drives according to the topography. A plurality of modes configured to control speed or fuel efficiency step by step are stored, and the remote information management device may select one of the plurality of modes according to the topography of a current location.

When it is determined that the work location has changed, the remote information management device may select a mode corresponding to the current location from among a plurality of modes after a preset time has elapsed from the current location.

The remote information management device transmits a compulsory operation command to the control device according to an operator's selection, and the control device ignores data or a plurality of modes stored in the remote information management device when receiving the forced operation command, and The engine and the hydraulic pump may be controlled according to a forced operation command.

If the control device ignores the data of the remote information management device and the operating time of the engine and the hydraulic pump exceeds a preset safety time according to the forced operation command, the engine and the hydraulic pump are operated despite the forced operation command. The operation of the hydraulic pump can be limited.

If the control device ignores the data of the remote information management device according to the forced operation command and the operating time of the engine and the hydraulic pump exceeds a preset safety time, the remote information management device generates a warning signal. can

According to an embodiment of the present invention, the construction machine can be automatically controlled to operate under appropriate operating conditions by analyzing work patterns.

1 is a configuration diagram of a construction machine according to a first embodiment of the present invention.
2 and 3 are flowcharts illustrating a control method of the construction machine of FIG. 1 .
4 and 5 are flowcharts illustrating a method for controlling a construction machine according to a second embodiment of the present invention.
6 is a flowchart illustrating a method for controlling a construction machine according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. This invention may be embodied in many different forms and is not limited to the embodiments set forth herein.

In addition, in various embodiments, components having the same configuration are representatively described in the first embodiment using the same reference numerals, and in other embodiments, only configurations different from those of the first embodiment will be described.

It is advised that the drawings are schematic and not drawn to scale. Relative dimensions and proportions of parts in the drawings are shown exaggerated or reduced in size for clarity and convenience in the drawings, and any dimensions are illustrative only and not limiting. And like structures, elements or parts appearing in two or more drawings, like reference numerals are used to indicate like features.

The embodiments of the present invention specifically represent ideal embodiments of the present invention. As a result, various variations of the diagram are expected. Therefore, the embodiment is not limited to the specific shape of the illustrated area, and includes, for example, modification of the shape by manufacturing.

Hereinafter, a construction machine 101 according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2 .

As shown in FIG. 1, the construction machine 101 according to the first embodiment of the present invention includes an engine 200, a hydraulic pump 300, a remote information management device 500, and a control device 700. do.

In addition, the construction machine 101 according to the first embodiment of the present invention may further include a manipulation device 600 . The operating device 600 may include various pedals used for acceleration or braking of the construction machine 101, a joystick for operating a work device performing various tasks, a lever for operating other equipment, a handle used during driving, and the like. can

The engine 200 generates power by burning fuel. That is, the engine 200 supplies rotational power to the hydraulic pump 300 to be described later. For example, the engine 200 may be directly connected to the hydraulic pump 300 to drive the hydraulic pump 300 .

The hydraulic pump 300 operates with power generated by the engine 200 and discharges hydraulic oil. For example, the hydraulic pump 300 may be a variable displacement pump in which a discharged flow rate varies according to the angle of the swash plate. Hydraulic oil discharged from the hydraulic pump 300 can drive various work devices and equipment. In addition, hydraulic fluid discharged from the hydraulic pump 300 may be used for driving depending on the type of construction machine 101 .

The remote information management device 500 collects information about the area where the construction machine 101 is working, the topography of the area, the type of work, and the intensity of work, and monitors the state of various equipment of the construction machine 101, which will be described later. The control device 700 provides information for controlling the engine 200 or the hydraulic pump 300 to the control device 700 . To this end, a plurality of modes set to variously control the engine 200 and the hydraulic pump 300 are stored in the remote information management device 500 in consideration of one or more of the type of work, the work area, and the work intensity. These plurality of modes may be set to control the driving speed or fuel efficiency of the construction machine 101 in stages. In addition, when the remote information management device 500 selects an appropriate mode in consideration of at least one of the type of work currently performed by the construction machine 101, the work area, and the intensity of work among a plurality of modes, the control device 700 to be described later controls the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 .

In addition, the remote information management device 500 may remotely exchange information with an external server 900 or a remote information management device 500 of another construction machine performing the same task in the same predetermined area. Here, the predetermined same area may be set in consideration of the type of work performed by the construction machine 101, the scale of the work site, and topographical characteristics of the work site.

In addition, the remote information management device 500 may include a display unit 580 displaying various kinds of information and an input unit 560 for a worker to input information or a command. For example, the display unit 580 and the input unit 560 may be integrally formed using a touch panel or a touch screen.

Specifically, the display unit 580 may display the output of one or more of the engine 200 or the hydraulic pump 300 and the driving speed of the construction machine 101, and the remote information management device 500 may select A plurality of modes and a currently selected mode among them may be displayed.

In addition, the display unit 580 may display the location and region where the construction machine 101 is currently working and terrain information of the region.

In addition, the display unit 580 may display the type of work being performed by the construction machine 101, the intensity of the work, and load information applied to various equipment included in the construction machine.

In addition, the display unit 580 may display various other information related to the construction machine 101 .

The input unit 560 may be used when a worker wants to reflect information obtained by the remote information management device 500, and may be used in data stored in the remote information management device 500 or data acquired by the remote information management device 500. It can also be used when an operator wants to arbitrarily select a mode, ignoring the mode selected by the remote information management device 500 based on the above.

In addition, the remote information management device 500 may further include one or more of a global positioning system (GPS), a geographic information system (GIS), a mobile communication system, and a wireless Internet system. Accordingly, the remote information management device 500 can manage the location and operation status of the construction machine 101 in operation, the state of major systems such as the engine and hydraulic system in real time, and provide various information and convenience to workers. In addition, it is also possible to perform functions linked to location tracking of the construction machine 101, Internet access, remote vehicle diagnosis, accident detection, etc. with a mobile device such as a desktop computer, smart phone, laptop computer, or tablet computer using communication and broadcasting networks. .

The control device 700 may control various components of the construction machine 101 as well as the engine 200 and the hydraulic pump 300 . Also, the control device 700 may include one or more of an engine control unit (ECU) and a vehicle control unit (VCU).

In particular, in the first embodiment of the present invention, the control device 700 may control the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 .

Specifically, in the first embodiment of the present invention, the remote information management device 500 calculates data by accumulating the ratio of the time the engine 200 is idling out of the total time the engine 200 is running for a preset time. can be saved. Here, the predetermined time may be set in various ways according to the type of work performed by the construction machine 101, the work area, or the work intensity. For example, if the work environment changes frequently, the preset period may be set short, and if the work environment does not change frequently, the preset period may be set long. In addition, the operator may arbitrarily adjust the preset time range as needed. That is, the operator may set a predetermined time by reflecting the operator's driving habit and inclination.

In addition, the plurality of modes stored in the remote information management device 500 may be set to control driving speed or fuel efficiency step by step in proportion to the ratio of the time the engine 200 is idling. Also, the remote information management device 500 may select one mode from among a plurality of modes according to the current ratio of the idle time of the engine 200 .

Also, the control device 700 may control the engine 200 or the hydraulic pump 300 according to the mode selected by the remote information management device 500 to adjust driving speed or fuel efficiency.

Hereinafter, referring to FIG. 2, in the first embodiment of the present invention, the control device 700 controls the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 to increase the driving speed. The operating principle of the adjustment will be described in detail.

The travel speed of the construction machine 101 can be controlled through the engine 200, but when the construction machine 101 has a separate travel motor, the travel speed can be controlled by controlling the travel motor. That is, since the engine 200, the hydraulic pump 300, and the travel motor used in some cases are organically connected to each other and operated, the travel speed of the construction machine 101 can be controlled in a variety of complex ways.

First, the plurality of modes stored in the remote information management device 500 may include a high-intensity work mode, a medium-intensity work mode, and a low-intensity work mode.

The high-intensity operation mode is selected when the ratio of the time during which the engine 200 is idling to the total time during which the engine 200 is operated is less than the first predetermined work standard ratio. The medium-intensity work mode is selected when a time ratio in which the engine 200 is idling is greater than or equal to the first work reference ratio and less than the second work reference ratio. Here, the second working standard ratio is higher than the first working standard ratio. The low-intensity work mode is selected when the time ratio in which the engine 200 is idling is equal to or greater than the second reference work ratio.

For example, the first working standard ratio may be 30%, and the second working standard ratio may be 70%. That is, when the ratio of the time the engine 200 is idling out of the total time the engine 200 is in operation is greater than 0% and less than 30%, it corresponds to the high-intensity work mode, and the ratio of the time the engine 200 is idling is greater than 30%. If it is greater than 70%, it corresponds to a medium-intensity work mode, and if the ratio of time during which the engine 200 is idling is greater than 70%, it may correspond to a low-intensity work mode. However, in the first embodiment of the present invention, the preset first working standard ratio and the second working standard ratio are not limited to those described above, and may be variously set in consideration of a working environment or a worker's inclination.

When the remote information management device 500 selects one of the plurality of modes described above according to the current ratio of the time the engine 200 is idling, the control device 700 selects a high-intensity work mode, a medium-intensity work mode, and The traveling speed of the construction machine 101 may be differently controlled for each low-intensity work mode.

Specifically, the control device 700 may operate the engine 200 or the hydraulic pump 300 to increase the driving speed in the order of high-intensity work mode, medium-intensity work mode, and low-intensity work mode. That is, the control device 700 controls the running speed of the construction machine 101 at a relatively low speed in the high-intensity work mode, and controls the running speed of the construction machine 101 at a medium speed faster than the low speed in the medium-intensity work mode. And, in the low-intensity work mode, the driving speed of the construction machine 101 can be controlled at a high speed faster than the medium speed described above. Here, the ranges of high speed, medium speed, and low speed may be variously set according to the type of construction machine 101 and the work environment. In this way, the running speed of the construction machine 101 may be increased in the order of high-intensity work mode, medium-intensity work mode, and low-intensity work mode. For example, the driving speed controlled in the high-intensity work mode is 20 km/h, the driving speed controlled in the medium-intensity work mode is 30 km/h, and the maximum speed may be controlled in the low-intensity work mode.

Hereinafter, referring to FIG. 3, in the first embodiment of the present invention, the control device 700 controls the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 to adjust fuel consumption. The operating principle is explained in detail.

First, the plurality of modes stored in the remote information management device 500 may include a normal mode, a first fuel economy reduction mode, and a second fuel economy reduction mode.

The normal mode is selected when the ratio of the time during which the engine 200 is idle to the total time during which the engine 200 is operated is less than the first predetermined fuel efficiency reference ratio. The first fuel economy reduction mode is selected when the time rate at which the engine 200 is idling is greater than or equal to the first fuel efficiency standard rate and less than the second fuel efficiency standard rate. Here, the second fuel economy standard ratio is higher than the first fuel economy standard rate. The second fuel economy reduction mode is selected when the time rate at which the engine 200 is idling is equal to or greater than the second fuel economy standard rate.

For example, the first fuel efficiency standard rate may be 50%, and the second fuel economy standard rate may be 70%. That is, when the ratio of the time during which the engine 200 is idle is greater than 0% and less than 50% of the total time that the engine 200 is in operation, the normal mode corresponds to the normal mode, and the ratio of the time during which the engine 200 is idle is 50% or more 70 % corresponds to the first fuel economy reduction mode, and when the ratio of time when the engine 200 is idling is 70% or more, it may correspond to the second fuel economy reduction mode. However, in the first embodiment of the present invention, the predetermined first fuel efficiency standard ratio and the second fuel economy standard ratio are not limited to those described above, and may be set in various ways in consideration of a working environment or a worker's inclination.

When the remote information management device 500 selects one of the plurality of modes described above according to the current ratio of the time the engine 200 is idling, the control device 700 selects the normal mode, the first fuel economy mode, and The engine 200 and the hydraulic pump 300 of the construction machine 101 may be differently controlled for each second fuel consumption reduction mode.

Specifically, the control device 700 controls the output of the engine 200 and the output of the hydraulic pump 300 step by step as the ratio of the time the engine 200 is idling to the total time the engine 200 is running increases. can reduce The control device 700 normally controls the engine 200 and the hydraulic pump 300 in the normal mode, and reduces the output of the engine 200 and the hydraulic pump 300 by 10% compared to the normal mode in the first fuel economy reduction mode. and the output of the engine 200 and the hydraulic pump 300 in the second fuel economy reduction mode can be reduced by 20% compared to the normal mode. As such, the control device may reduce the output of the engine 200 and the hydraulic pump 300 in the order of normal mode, first fuel economy mode, and second fuel economy mode. In addition, when the output of the engine 200 and the hydraulic pump 300 is reduced, fuel consumption is reduced and fuel efficiency is improved.

In addition, when it is impossible to obtain information due to the initial operation of the construction machine 101 or malfunctions of various sensors or equipment, or an error occurs in the acquired information, the remote information management device 500 is used during the entire time that the engine 200 is in operation. It may be impossible to calculate the ratio of the time the engine 200 is idling by accumulating for a preset time.

In this case, in the first embodiment of the present invention, the remote information management device 500 receives data stored in the remote information management device 500 of another construction machine performing the same task in the same preset area and receives multiple data. Any one of the modes may be selected and transmitted to the control device.

As such, according to the first embodiment of the present invention, the remote information management device 500 can accurately select a mode suitable for the current situation from among a plurality of modes, and can stably select the mode even in an unexpected situation. .

In addition, the remote information management device 500 may transmit a compulsory operation command to the control device according to the operator's selection. When the control device 700 receives a forced operation command from the remote information management device 500, the control device 700 ignores data stored in the remote information management device 500 or a plurality of modes, and operates the engine 200 and the hydraulic pump according to the forced operation command. (300) can be controlled.

For example, in the first embodiment of the present invention, the forced operation command ignores data calculated by accumulating the ratio of the time the engine 200 is idling out of the total time the engine 200 is running for a preset time, and It may be that an operator manipulates the remote information management device 500 and forcibly selects one mode from among a plurality of modes.

If a method for a worker to input a forced operation command to the remote information management device 500 is described as an example, when the engine 200 rotates at a predetermined number of revolutions or less, the worker presses on the brake pedal used for braking. After inputting a password to the remote information management device 500, it is possible to set a compulsory operation command to be input. Here, the predetermined number of revolutions of the engine 200 may be set differently depending on the type of engine 200, and may be, for example, the number of revolutions when the engine is in a neutral state.

In addition, in the first embodiment of the present invention, a method of forcibly selecting one mode from among a plurality of modes may be included in the method of inputting the compulsory operation command to the remote information management device 500 by the operator.

In addition, when the time during which the control device 700 ignores the data of the remote information management device 500 and operates the engine 200 and the hydraulic pump 300 exceeds a preset safety time according to the forced operation command, the remote information management device 500 is ignored. The management device 500 may limit the operation of the engine 200 and the hydraulic pump 300 despite a forced operation command. Here, the preset safety time may be set in various ways according to the type of construction machine 101 and the type of work performed by the construction machine 101 . That is, if the predetermined safety time is exceeded, the remote information management device 500 ignores the operator's forced operation command and selects a mode corresponding to the current situation from among a plurality of modes based on data stored in the remote information management device 500. And, the control device 700 may control the engine 200 and the hydraulic pump 300 according to the mode selected by the remote information management device 500 .

In addition, when the time during which the control device 700 ignores the data of the remote information management device 500 and operates the engine 200 and the hydraulic pump 300 exceeds a preset safety time according to the forced operation command, the remote information management device 500 is ignored. The management device 500 may generate a warning signal.

For example, the remote information management device 500 first generates a warning signal when a predetermined safety time is exceeded, and if the forced operation command is not withdrawn or changed even after the warning signal is generated, the engine 200 and the hydraulic pump 300 can limit its operation.

In addition, according to the first embodiment of the present invention, an operator manipulates the remote information management device 500 to adjust the driving speed or fuel efficiency in proportion to the ratio of the time the engine 200 is idling for each of a plurality of modes. change may be possible.

Specifically, as an example, the operator may arbitrarily change the first work standard ratio and the second work standard ratio, which are criteria for distinguishing a high-intensity work mode, a medium-intensity work mode, and a low-intensity work mode among a plurality of modes. For example, the operator may change the first work standard ratio from 30% to 40% and the second work standard ratio from 70% to 80%.

In addition, the operator can adjust the range of travel speed that the control device 700 controls the engine 200 or the hydraulic pump 300 for each mode. For example, the driving speed controlled in the high-intensity work mode can be changed from 20 km/h to 25 km/h, and the driving speed controlled in the medium-intensity work mode can be changed from 30 km/h to 40 km/h.

Also, among the plurality of modes, the operator may arbitrarily change the first fuel efficiency standard ratio and the second fuel economy standard ratio, which are criteria for classifying the normal mode, the first fuel economy mode, and the second fuel economy mode. For example, the first fuel efficiency standard ratio may be changed from 50% to 40%, and the second fuel economy standard ratio may be changed from 70% to 80%.

In addition, the operator may adjust fuel consumption by controlling the engine 200 or the hydraulic pump 300 through the control device 700 for each mode. For example, in the first fuel economy reduction mode, the output of the engine 200 and the hydraulic pump 300 is reduced from 10% to 5% compared to the normal mode, and in the second fuel economy mode, the engine 200 It is possible to change the output of the hydraulic pump 300 from 20% reduction compared to the normal mode to 10% reduction.

Also, according to the first embodiment of the present invention, data stored in the remote information management device 500 may be initialized by an operator.

In addition, as described above, an operator manipulates the remote information management device 500 to change a driving speed or a range in which fuel efficiency is adjusted in proportion to a ratio of an idle time of the engine 200 for each of a plurality of modes or remote information management A method for the operator to initialize data stored in the device 500 may be performed according to a method for the operator to input a compulsory operation command to the remote information management device 500 . That is, when the engine 200 rotates at a predetermined number of revolutions or less and the operator inputs the password into the remote information management device 500 while stepping on the brake pedal used for braking, the remote information management device 500 is activated by the operator. is operated to change the driving speed or the range in which fuel efficiency is adjusted in proportion to the ratio of the time the engine 200 is idling for each of a plurality of modes, or the operator can initialize data stored in the remote information management device 500 .

With this configuration, the construction machine 101 according to the first embodiment of the present invention can be automatically controlled to operate under appropriate driving conditions by analyzing work patterns.

Specifically, the construction machine 101 may control the running speed or fuel efficiency step by step in proportion to the ratio of the time the engine 200 is idling to the total time the engine 200 is operated.

Accordingly, in a work environment where work conditions vary, even if the driver does not properly change the work mode individually to suit the current work environment, the remote information management device 500 can automatically select a mode suitable for the current work environment.

Hereinafter, a construction machine 101 according to a second embodiment of the present invention will be described with reference to FIGS. 1, 4, and 5.

The remote information management device 500 used for the construction machine 101 according to the second embodiment of the present invention includes a global positioning system (GPS). Also, the remote information management device 500 stores data obtained by calculating the ratio of the mileage measured by the satellite positioning system during the entire working time. Here, the ratio of the travel distance to the total work time can be expressed as the total work time (h) / travel distance (km). That is, if 90 km is traveled for 9 hours, the ratio of the distance traveled is 0.1, and if 180 km is traveled for 9 hours, the ratio of the distance traveled is 0.05.

In addition, the plurality of modes stored in the remote information management device 500 may be set to control the driving speed or fuel efficiency in stages in proportion to the ratio of the traveling distance among the total working hours of the construction machine 101 . Also, the remote information management device 500 may select one mode from among a plurality of modes according to the current ratio of the travel distance of the entire working time of the construction machine 101 .

In addition, the control device 700 may control the engine 200 or the hydraulic pump 300 according to the mode selected by the remote information management device 50 to adjust the driving speed or fuel efficiency.

Hereinafter, referring to FIG. 4, in the second embodiment of the present invention, the control device 700 controls the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 to increase the travel speed. The operating principle of the adjustment will be described in detail.

First, the plurality of modes stored in the remote information management device 500 may include a high-intensity work mode, a medium-intensity work mode, and a low-intensity work mode.

The high-intensity work mode is selected when the ratio of the travel distance measured by the global positioning system to the total work time of the construction machine 101 is less than the first preset work standard ratio. The medium-intensity work mode is selected when the ratio of the mileage traveled is greater than or equal to the first work criterion ratio and less than the second work criterion ratio. Here, the second working standard ratio is higher than the first working standard ratio. The low-intensity work mode is selected when the ratio of the traveling distance is greater than or equal to the second reference work ratio.

For example, the first working standard ratio may be 0.05 and the second working standard ratio may be 0.1. That is, if the ratio of the travel distance measured by the satellite positioning system during the entire working time of the construction machine 101 is less than 0.05, it corresponds to the high-intensity work mode, and if the ratio of the travel distance is 0.05 or more and less than 0.1, it corresponds to the medium-intensity work mode And, if the ratio of the driving distance is 0.1 or more, it may correspond to a low-intensity work mode. However, in the second embodiment of the present invention, the preset first working standard ratio and the second working standard ratio are not limited to those described above, and may be variously set in consideration of the working environment or the operator's inclination.

When the remote information management device 500 selects one of the plurality of modes described above according to the ratio of the mileage, the control device 700 operates differently for each high-intensity work mode, medium-intensity work mode, and low-intensity work mode. The running speed of the construction machine 101 can be controlled.

Specifically, the control device 700 may operate the engine 200 or the hydraulic pump 300 to increase the driving speed in the order of high-intensity work mode, medium-intensity work mode, and low-intensity work mode. That is, the control device 700 controls the running speed of the construction machine 101 at low speed in the high-intensity work mode, controls the running speed of the construction machine 101 at medium speed in the medium-intensity work mode, and controls the running speed of the construction machine 101 at a low speed in the low-intensity work mode. The running speed of the construction machine 101 can be controlled at high speed. Here, the ranges of high speed, medium speed, and low speed may be variously set according to the type of construction machine 101 and the work environment. In this way, the running speed of the construction machine 101 may be increased in the order of high-intensity work mode, medium-intensity work mode, and low-intensity work mode.

Hereinafter, referring to FIG. 5 , in the second embodiment of the present invention, the control device 700 controls the engine 200 or the hydraulic pump 300 according to the mode selected in the remote information management device 500 to adjust fuel consumption. The operating principle is explained in detail.

First, the plurality of modes stored in the remote information management device 500 may include a normal mode, a first fuel economy reduction mode, and a second fuel economy reduction mode.

The normal mode is selected when the ratio of the travel distance measured by the global positioning system to the total working time of the construction machine 101 is less than the first predetermined fuel efficiency standard ratio. The first fuel economy reduction mode is selected when the ratio of the mileage is greater than or equal to the first fuel economy standard ratio and less than the second delay standard ratio. Here, the second fuel economy standard ratio is higher than the first fuel economy standard rate. The second fuel economy reduction mode is selected when the ratio of the mileage is greater than or equal to the second fuel economy standard ratio.

For example, the first fuel efficiency standard ratio may be 0.75, and the second fuel economy standard ratio may be 0.1. That is, if the ratio of the travel distance measured by the satellite positioning system during the entire working time of the construction machine 101 is less than 0.75, it corresponds to the normal mode, and if the ratio of the travel distance is greater than or equal to 0.75 and less than 0.1, it corresponds to the first fuel economy reduction mode And, when the ratio of the driving distance is 0.1 or more, it may correspond to the second fuel economy reduction mode. However, in the second embodiment of the present invention, the preset first fuel efficiency standard ratio and the second fuel economy standard ratio are not limited to those described above, and may be set in various ways in consideration of a working environment or a worker's inclination.

When the remote information management device 500 selects one of the plurality of modes described above according to the ratio of the travel distance measured by the satellite positioning system to the total working time of the construction machine 101, the control device 700 The engine 200 and the hydraulic pump 300 of the construction machine 101 may be differently controlled in the normal mode, the first fuel economy reduction mode, and the second fuel economy reduction mode.

Specifically, the control device 700 controls the output of the engine 200 and the output of the hydraulic pump 300 step by step as the ratio of the travel distance measured by the satellite positioning system decreases during the entire working time of the construction machine 101. can be reduced to The control device 700 normally controls the engine 200 and the hydraulic pump 300 in the normal mode, and reduces the output of the engine 200 and the hydraulic pump 300 by 10% compared to the normal mode in the first fuel economy reduction mode. and the output of the engine 200 and the hydraulic pump 300 in the second fuel economy reduction mode can be reduced by 20% compared to the normal mode. As such, the control device 700 may reduce the output of the engine 200 and the hydraulic pump 300 in the order of normal mode, first fuel economy mode, and second fuel economy mode. In addition, when the output of the engine 200 and the hydraulic pump 300 is reduced, fuel consumption is reduced and fuel efficiency is improved.

Also, in the second embodiment of the present invention, the remote information management device 500 is remote from the server 900 provided outside or the remote information management device 500 of another construction machine performing the same task in the same predetermined area. information exchange is possible.

Accordingly, when the operation of the construction machine 101 is started or the work location is changed, the remote information management device 500 transmits data stored in the remote information management device 500 of another construction machine performing the same work in the same preset area. Upon receipt, one of a plurality of modes may be selected and transmitted to the control device. Accordingly, the remote information management device 500 can accurately select a mode suitable for the current situation from among a plurality of modes and stably select the mode even in an unexpected situation.

Also, in the second embodiment of the present invention, the operator operates the remote information management device 500 ignoring the data on the ratio of the mileage to the total work time stored in the remote information management device 500 to select one of a plurality of modes. It is possible to forcibly select one mode. That is, the remote information management device 500 may transmit a compulsory operation command to the control device according to the operator's selection. When the control device 700 receives a forced operation command from the remote information management device 500, the control device 700 ignores data stored in the remote information management device 500 or a plurality of modes, and operates the engine 200 and the hydraulic pump according to the forced operation command. (320) can be controlled.

For example, in the second embodiment of the present invention, the forced operation command disregards the data calculated by the ratio of the travel distance measured by the satellite positioning system during the entire working time of the construction machine 101 and the remote information management device ( 500) may be forcibly selected as one of a plurality of modes by manipulating the operator.

The method for the operator to input the compulsory operation command to the remote information management device 500 is the same as that of the first embodiment. Also, in the second embodiment of the present invention, a method of forcibly selecting one mode from among a plurality of modes may be included in the method for the operator to input the compulsory operation command to the remote information management device 500 .

Also, in the second embodiment of the present invention, the time when the control device 700 ignores the data of the remote information management device 500 and operates the engine 200 and the hydraulic pump 300 according to the forced operation command is When the set safety time is exceeded, the operation of the engine 200 and the hydraulic pump 300 may be restricted despite the forced operation command. That is, if the predetermined safety time is exceeded, the remote information management device 500 ignores the operator's forced operation command and selects a mode corresponding to the current situation from among a plurality of modes based on data stored in the remote information management device 500. And, the control device 700 may control the engine 200 and the hydraulic pump 300 according to the mode selected by the remote information management device 500 .

In addition, when the time during which the control device 700 ignores the data of the remote information management device 500 and operates the engine 200 and the hydraulic pump 300 exceeds a preset safety time according to the forced operation command, the remote information management device 500 is ignored. The management device 500 may generate a warning signal. For example, the remote information management device 500 first generates a warning signal when a predetermined safety time is exceeded, and if the forced operation command is not withdrawn or changed even after the warning signal is generated, the engine 200 and the hydraulic pump 300 ) can be limited.

In addition, according to the second embodiment of the present invention, the operator manipulates the remote information management device 500 to determine the ratio of the travel distance measured by the satellite positioning system to the total working time of the construction machine 101 for each of a plurality of modes. It may be possible to change a driving speed or a range in which fuel efficiency is adjusted in proportion.

Specifically, as an example, the operator may arbitrarily change the first work standard ratio and the second work standard ratio, which are criteria for distinguishing a high-intensity work mode, a medium-intensity work mode, and a low-intensity work mode among a plurality of modes. For example, the operator may change the first working standard ratio from 0.05 to 0.04 and the second working standard ratio from 0.1 to 0.09.

In addition, the operator can adjust the range of travel speed that the control device 700 controls the engine 200 or the hydraulic pump 300 for each mode. For example, the driving speed controlled in the high-intensity work mode can be changed from 20 km/h to 25 km/h, and the driving speed controlled in the medium-intensity work mode can be changed from 30 km/h to 40 km/h.

Also, among the plurality of modes, the operator may arbitrarily change the first fuel efficiency standard ratio and the second fuel economy standard ratio, which are criteria for classifying the normal mode, the first fuel economy mode, and the second fuel economy mode. For example, the first fuel efficiency standard ratio may be changed from 0.75 to 0.8, and the second fuel economy standard ratio may be changed from 0.1 to 0.12.

In addition, the operator can adjust the fuel efficiency that is adjusted by the control device controlling the engine 200 or the hydraulic pump 300 for each mode. For example, in the first fuel economy mode, the output of the engine and hydraulic pump is reduced from 10% compared to the normal mode to 5%, and in the second fuel economy mode, the output of the engine and hydraulic pump is reduced compared to the normal mode A 20% reduction can be changed to a 10% reduction.

Also, in the second embodiment of the present invention, data stored in the remote information management device 500 may be initialized by an operator.

As described above, the operator manipulates the remote information management device 500 so that the travel speed or fuel efficiency is proportional to the ratio of the travel distance measured by the satellite positioning system out of the total working time of the construction machine 101 in each of a plurality of modes. The method for changing the range to be adjusted or for the operator to initialize the data stored in the remote information management device 500 may be performed in accordance with the method for the operator to input a compulsory operation command to the remote information management device. That is, when the engine 200 rotates at a predetermined number of revolutions or less and the operator inputs the password into the remote information management device 500 while stepping on the brake pedal used for braking, the remote information management device 500 is activated by the operator. is operated to change the range in which the driving speed or fuel efficiency is adjusted in proportion to the ratio of the traveling distance measured by the satellite positioning system during the entire working time of the construction machine 101 for each of a plurality of modes, or to the remote information management device 500 Stored data can be initialized by the operator.

With this configuration, the construction machine 101 according to the second embodiment of the present invention can be automatically controlled to operate under appropriate driving conditions by analyzing work patterns.

Specifically, the construction machine 101 may control the driving speed or fuel efficiency step by step in proportion to the ratio of the traveling distance measured by the satellite positioning system during the entire working time.

Accordingly, in a work environment where work conditions fluctuate, even if the driver fails to properly change the work mode individually to suit the current work environment, the remote information management device can automatically select a mode suitable for the current work environment.

Hereinafter, a construction machine 101 according to a third embodiment of the present invention will be described with reference to FIGS. 1 and 6 .

The remote information management device 500 of the construction machine 101 according to the third embodiment of the present invention includes a global positioning system (GPS) for determining the current location and a geographic information system (GIS) for collecting map and terrain information. includes Also, the remote information management device 500 stores a plurality of modes set to control driving speed or fuel efficiency step by step according to terrain. That is, the remote information management device 500 may select one mode from among a plurality of modes according to the topography of the current location.

For example, when the working position of the construction machine 101 is a mountain or a slope, or a wetland or muddy position, the engine 200 and the hydraulic pump 300 may be controlled with weights applied to the work load. Conversely, when the working position of the construction machine 101 is flat or the ground condition is suitable for the operation of the construction machine 101, the engine 200 and the hydraulic pump 300 can be normally controlled without weighting the work load. there is. Such topographical information can be grasped through a geographic information system (GIS) built into the remote information management device 500 .

In addition, when it is determined that the working position of the construction machine 101 has changed, the remote information management device 500 may select a mode corresponding to the current position from among a plurality of modes after a predetermined time has elapsed from the current position. Thus, it is possible to prevent the mode from being changed even though the working position of the construction machine 101 is not actually changed. For example, the mode may not be changed when the current location of the construction machine 101 is a position temporarily passed while moving or when the construction machine 101 temporarily leaves the work site for maintenance or inspection.

With this configuration, the construction machine 101 according to the third embodiment of the present invention can be automatically controlled to operate under appropriate operating conditions by analyzing work patterns.

Specifically, the construction machine 101 may select a mode suitable for the current location in consideration of topographical characteristics of the work location.

Accordingly, in a work environment where work positions and working conditions fluctuate, the remote information management device can automatically select a mode suitable for the current work environment, even if the driver fails to properly change the work mode one by one according to the current work environment.

Also, the present invention is not limited to the above-described embodiments. That is, two or more of the above-described first embodiment, second embodiment, and third embodiment may be implemented in combination.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains can understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. will be.

Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims described below, the meaning and scope of the claims, and All changes or modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

101: construction machinery
200: engine
300: hydraulic pump
500: remote information management device
560: input unit
580: display unit
600: operating device
700: control device

Claims (19)

engine;
a hydraulic pump that operates with rotational power of the engine and discharges hydraulic oil;
a remote information management device storing a plurality of modes set to variously control the engine and the hydraulic pump in consideration of work types and work areas; and
A control device for controlling at least one of the engine and the hydraulic pump according to a mode selected from among the plurality of modes in the remote information management device.
including,
The remote information management device stores data calculated by accumulating a ratio of an idle time of the engine out of a total operating time of the engine for a predetermined time period. delete According to claim 1,
The control device reduces the output of the engine and the output of the hydraulic pump step by step as the ratio of the time the engine is idling increases. According to claim 1,
The remote information management device is capable of remotely exchanging information with an external server or the remote information management device of another construction machine performing the same task in the same predetermined area. According to claim 4,
If it is impossible for the remote information management device to accumulate and calculate the ratio of the time the engine is idling for a preset time due to the initial operation of the construction machine or an error in acquired information, the The remote information management device receives data stored in the remote information management device of another construction machine performing the same task in the same preset area, selects one of the plurality of modes, and transmits it to the control device Construction machinery, characterized in that. According to claim 1,
The plurality of modes stored in the remote information management device are set to control driving speed or fuel efficiency in stages in proportion to the ratio of the time the engine is idling,
The remote information management device selects one mode from among a plurality of modes according to a current ratio of an idle time of the engine,
The control device controls the engine or the hydraulic pump according to the mode selected by the remote information management device to adjust the traveling speed or the fuel efficiency. According to claim 6,
Ignoring the data calculated by accumulating the ratio of the time during which the engine was idle out of the total time during which the engine was operated for a predetermined time, a worker manipulates the remote information management device to force it into one of the plurality of modes. Construction machinery, characterized in that the selection is possible. According to claim 7,
Further comprising a brake pedal used during braking,
The construction machine, characterized in that when the engine rotates at a predetermined number of revolutions or less, the worker inputs a password into the remote information management device and forcibly selects one of the plurality of modes while stepping on the brake pedal. According to claim 6,
The construction machine according to claim 1 , wherein a range in which the driving speed or the fuel efficiency is adjusted can be changed in proportion to a ratio of an idle time of the engine in each of the plurality of modes by operating the remote information management device by an operator. According to claim 1,
The remote information management device includes a global positioning system (GPS),
Wherein the remote information management device stores data obtained by calculating a ratio of a travel distance measured by the satellite positioning system during a total working time. According to claim 10,
The remote information management device can remotely exchange information with an external server or the remote information management device of another construction machine performing the same task in the same predetermined area,
When the operation of the construction machine is started or the work location is changed, the remote information management device receives data stored in the remote information management device of another construction machine performing the same task in the same preset area and selects one of the plurality of modes. Construction machine, characterized in that for selecting any one mode and transmitting it to the control device. According to claim 10,
The plurality of modes stored in the remote information management device are set to control driving speed or fuel efficiency in stages in proportion to the ratio of the driving distance among the total working hours,
The remote information management device selects one of a plurality of modes according to the current ratio of the mileage during the total work time,
Wherein the control device controls the engine or the hydraulic pump according to the mode selected by the remote information management device to adjust the traveling speed or the fuel efficiency. According to claim 12,
Construction machine, characterized in that forcibly selecting one of the plurality of modes by operating the remote information management device by ignoring the data on the ratio of the mileage during the total working time. According to claim 12,
The construction machine according to claim 1 , wherein a range in which the driving speed or the fuel efficiency is controlled is changeable in proportion to a ratio of a traveling distance during the total working time by a worker operating the remote information management device. engine;
a hydraulic pump that operates with rotational power of the engine and discharges hydraulic oil;
a remote information management device storing a plurality of modes set to variously control the engine and the hydraulic pump in consideration of work types and work areas; and
A control device for controlling at least one of the engine and the hydraulic pump according to a mode selected from among the plurality of modes in the remote information management device.
including,
The remote information management device further includes a global positioning system (GPS) for determining a current location and a geographic information system (GIS) for collecting map and terrain information,
The remote information management device stores a plurality of modes set to control driving speed or fuel efficiency step by step according to terrain,
The remote information management device selects one of the plurality of modes according to the topography of the current location. According to claim 15,
Wherein the remote information management device selects a mode corresponding to the current location from among a plurality of modes after a predetermined time has elapsed from the current location when it is determined that the work location has changed. engine;
a hydraulic pump that operates with rotational power of the engine and discharges hydraulic oil;
a remote information management device storing a plurality of modes set to variously control the engine and the hydraulic pump in consideration of work types and work areas; and
A control device for controlling at least one of the engine and the hydraulic pump according to a mode selected from among the plurality of modes in the remote information management device.
including,
The remote information management device transmits a forced operation command to the control device according to the operator's selection,
Wherein the control device ignores data or a plurality of modes stored in the remote information management device when receiving the forced operation command, and controls the engine and the hydraulic pump according to the forced operation command. According to claim 17,
If the control device ignores the data of the remote information management device and the operating time of the engine and the hydraulic pump exceeds a preset safety time according to the forced operation command, the engine and the hydraulic pump are operated despite the forced operation command. Construction machine, characterized in that for limiting the operation of the hydraulic pump. According to claim 17,
When the control device ignores the data of the remote information management device according to the forced operation command and the operating time of the engine and the hydraulic pump exceeds a preset safety time, the remote information management device generates a warning signal. Construction machinery, characterized in that.

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