WO2019172732A1 - 건설기계의 비상구동 시스템 - Google Patents
건설기계의 비상구동 시스템 Download PDFInfo
- Publication number
- WO2019172732A1 WO2019172732A1 PCT/KR2019/002815 KR2019002815W WO2019172732A1 WO 2019172732 A1 WO2019172732 A1 WO 2019172732A1 KR 2019002815 W KR2019002815 W KR 2019002815W WO 2019172732 A1 WO2019172732 A1 WO 2019172732A1
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- WIPO (PCT)
- Prior art keywords
- emergency
- input unit
- selection input
- terminal
- mode selection
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/24—Safety devices, e.g. for preventing overload
Definitions
- One embodiment of the present specification relates to an emergency drive system of a construction machine.
- Construction machinery generally refers to all the machinery used in civil engineering and building construction.
- a construction machine has an engine and a hydraulic pump that operates at the power of the engine, and travels or drives a work device with the power generated by the engine and the hydraulic pump.
- an excavator a type of construction machine
- a construction machine it consists of a traveling body which serves as a movement of equipment, an upper swinging body mounted on the traveling body to rotate 360 degrees, and a work device.
- the excavator includes a traveling motor used for driving, a swing motor used for swinging the upper swing body, and driving devices such as a boom cylinder, an arm cylinder, a bucket cylinder, and an optional cylinder used for a working device.
- driving devices such as a boom cylinder, an arm cylinder, a bucket cylinder, and an optional cylinder used for a working device.
- These drive devices are driven by hydraulic oil discharged from a variable displacement hydraulic pump driven by an engine or electric motor.
- the excavator also has an operation device including a joystick, an operation lever, a pedal, or the like for controlling the above-mentioned various driving devices.
- the electronically controlled construction machine is an electronically controlled hydraulic pump is applied to control the flow rate and pressure of the hydraulic oil discharged from the hydraulic pump through the control by the electronic control unit.
- the electronically controlled hydraulic pump includes an electronic proportional control valve for controlling the pilot hydraulic pressure applied to the hydraulic pump.
- the opening amount of the electromagnetic proportional control valve for controlling the swash plate angle of the hydraulic pump is controlled by the current output from the electronic controller in response to the driver's operation of the joystick lever or the like to output an operation signal.
- the electronic control unit may receive feedback from a plurality of sensors mounted in the hydraulic pump and the hydraulic system to perform more precise control.
- the present invention is to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide an emergency drive system of a construction machine that enables starting even when the equipment controller of the construction machine is inoperable.
- Another object is to make it easy to ask for help when a construction machine is inoperable in rough terrain.
- the emergency drive system of a construction machine outputs a drive signal for the start motor based on a start motor, a start signal for driving the engine, and a plurality of An electronic control unit for outputting a control signal for the electro-hydraulic pump based on two operating machine operation signals and an emergency start selection input unit for bypassing the electronic control unit and connecting power to the start motor.
- the emergency drive system of a construction machine is an electro-hydraulic pump for operating a plurality of work machines, an electromagnetic proportional valve for controlling the electro-hydraulic pump and the electronic control unit bypasses and outputs a predetermined electrical signal to the electromagnetic proportional valve.
- the emergency work drive selection input unit further comprises.
- the emergency work drive selection input unit bypasses the plurality of registers for outputting different electrical signals and an operation mode selection input unit for selectively connecting any one of the plurality of registers according to an operation selected by an operator.
- an emergency mode selection input unit configured to output an electrical signal output from a register connected by the operation mode selection input unit to the electromagnetic proportional valve.
- the emergency driving system of the construction machine further includes a control unit for turning on the warning lamp provided on the top side of the construction machine and the emergency start selection input unit to turn on the light emitted from the warning lamp to indicate a distress structure.
- the emergency driving system of the construction machine further includes a position information acquisition unit for acquiring the position information of the construction machine, and the control unit inputs the light emitted from the beacon from the position information acquisition unit when the emergency start selection input unit is turned on. It is characterized in that the light so as to mean location information.
- the distress structure is characterized in that the S.O.S of Morse code.
- the emergency drive system of the construction machine further includes a communication terminal for transmitting and receiving information with any one or more of a location information acquisition unit for obtaining the position information of the construction machine and the control server and the administrator terminal, the communication terminal selects the emergency start When the input unit is turned on, at least one of abnormal status notification and location information is transmitted to any one or more of the control server and the administrator terminal.
- An emergency drive system of a construction machine may include: a first relay installed at a second connection line connecting a power supply unit and the start motor; A second relay having a contact terminal of the first relay and a signal terminal connected through the second connection line, and a contact terminal connected to the starting motor connected in parallel with the second connection line; And a third connection line branched from the second connection line between the first relay and the second relay and connected to the power supply unit, wherein the electronic control unit is connected to the power supply unit through a first connection line.
- the power supply of the power supply unit is applied to the signal terminal of the second relay, thereby through the contact terminal of the second relay.
- a current of the power supply unit may be applied to the start motor, and the emergency start selection input unit may be a switch installed to selectively short-circuit the third connection line, and the second relay may be connected when the third connection line is connected.
- the power supply of the power supply unit applied from the emergency start selection input unit may be applied to the signal terminal.
- the emergency start and drive to facilitate the request for help to the outside without a separate operation of the operator.
- FIG. 1 is a diagram illustrating a block diagram of an emergency drive system of a construction machine according to an embodiment of the present disclosure.
- FIG. 2 is a block diagram illustrating an emergency work drive emergency work drive selection input unit of a construction machine according to an exemplary embodiment of the present specification.
- 3 and 4 is a diagram illustrating a circuit diagram for the emergency start of the construction machine of FIG.
- 5 to 7 is a diagram illustrating a circuit diagram for the emergency drive of the construction machine of FIG.
- FIG. 8 is a diagram illustrating a block diagram of a distress notification device according to an embodiment of the present specification.
- FIG. 9 is a diagram exemplarily illustrating selection input units according to an embodiment of the present specification.
- FIG. 10 is a flowchart illustrating a driving method of an excavator according to an embodiment of the present invention.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- FIG. 1 is a diagram illustrating a block diagram of an emergency drive system of a construction machine according to an embodiment of the present disclosure
- Figure 2 is a block of emergency work drive emergency work drive selection input unit of a construction machine according to an embodiment of the present specification The figure illustrates the figure.
- the emergency drive device of a construction machine includes a start motor 10, an electronic control unit 20, an electromagnetic proportional valve 30, an electromagnetic hydraulic pump 40, a power supply unit 50, and an emergency start selection input unit. 60, the emergency work drive selection input unit 70 and the distress notification device (80).
- the start motor 10 is driven by the electric energy supplied from the power supply unit 50.
- the start motor 10 converts the supplied electric energy into rotational energy to drive an engine (not shown).
- the engine burns fuel to generate power.
- the electronic controller 20 applies the current of the power supply unit 50 to the start motor 10 to drive the start motor 10.
- the electronic controller 20 may control the opening and closing degree of the electronic proportional pressure reducing valve (EPPRV) to control the flow rate of the pilot hydraulic pressure required for the swash plate angle control of the electromagnetic hydraulic pump 40. . Accordingly, the electronic controller 20 may control the hydraulic oil discharge flow rate and the hydraulic pressure of the electromagnetic hydraulic pump 40.
- the emergency start selection input unit 60 may connect the power supply unit 50 to the start motor 10 in place of the electronic control unit 20. That is, the operator changes the current transfer path between the start motor 10 and the power supply unit 50 by operating the emergency start selection input unit 60 when the electronic control unit 20 is inoperable. As a result, the power supply unit 50 is connected to the start motor 10 without driving the electronic control unit 20, thereby driving the start motor 10.
- the emergency work drive selection input unit 70 changes the transmission path of the control signal to the electromagnetic proportional valve 30. That is, when the electronic control unit 20 is inoperable, the operator operates the emergency work drive selection input unit 70 to output a preset electric signal to the electromagnetic proportional valve 30 without temporarily passing through the electronic control unit 20, thereby temporarily The electro-hydraulic pump 40 of the construction machine to be driven.
- the distress notification device 80 transmits distress information to a terminal and a server which are set in advance through a warning light and / or a communication terminal.
- the distress notification device 80 will be described in detail later.
- the emergency work drive selection input unit 70 includes one or more registers 71 (71-1, 71-2, 71-3), an operation mode selection input unit 73, and an emergency mode selection input unit 75.
- three registers are exemplified, but are not limited thereto.
- One or more registers 71 output different preset electrical signals.
- the registers with different outputs can temporarily control the opening and closing degree of the electromagnetic proportional valve 30 in response to the operation of the operation mode selection input unit 73.
- the electronic proportional valve 30 may be limited to a predetermined level or less, unlike a normal state. This is because emergency drive is used to escape from a hazardous area or situation in an emergency.
- the operation mode selection input unit 73 selectively connects any one of the registers for outputting different electric signals and the electromagnetic proportional valves 30.
- Each of the electromagnetic proportional valves 30 may have a different resistance value, whereby the output voltage or current may be formed differently even when the same current is supplied from the power supply unit 50.
- the selection of such a register may be performed by selection of a register corresponding to a driving or a task selected by the driver.
- the emergency mode selection input unit 75 changes the transmission path of the control signal to the electromagnetic proportional valve 30 so as to output a preset electrical signal to the electromagnetic proportional valve 30 without passing through the electronic control unit 20.
- 3 and 4 is a diagram illustrating a circuit diagram for the emergency start of the construction machine of FIG.
- circuit diagrams presented herein are simplified circuit diagrams to illustrate features of the present invention.
- the electronic control unit 20 of the construction machine is connected to the power supply unit 50 by the first connection line L1, and the second connection line L2 through the first relay R1. Can control the short circuit.
- the electronic controller 20 may control the power supplied from the power supply unit 50 to the start motor 10 through the control of the first relay R1.
- the power supply control unit 170 includes a first power control switch 171 and a second power control switch 172.
- the first breaker 201 is connected between the battery 130 and the electronic control device 140.
- the second breaker 202 is connected between the battery 130 and the first power control switch 171.
- the first power control switch 171 is connected between the second breaker 202 and the second power control switch 172.
- the second power control switch 172 is connected between the first power control switch 171 and the electronic control device 140. In this case, the contact point between the second power control switch 172 and the first power control switch 171 is connected to the electronic control device 140.
- One terminal of the emergency start selection input unit 60 is connected to the battery, that is, the power supply unit 50 through the second power control switch 172, the first power control switch 171, and the second breaker 202.
- the other terminal of the emergency start selection input unit 60 is connected to the control terminal of the second relay R2.
- the emergency start select input unit 60 is connected between the power supply unit 50 and the control terminal of the second relay R2.
- the contact between the emergency start selection input unit 60 and the second power control switch 172 is connected to the electronic control unit 20.
- the first power control switch 171 and the second power control switch 172 are turned on, so that the first power control switch 171 and the second power source with the electronic control unit 20 turned on.
- the voltage of the battery 130 is supplied through the control switch 172.
- the second power control switch 172 is turned on after the first power control switch 171 is turned on.
- the first power control switch 171 and the second power control switch 172 are simultaneously turned on for a predetermined period of time.
- the electronic controller 20 When the start signal S1 is input, the electronic controller 20 outputs a current for driving to the start motor 10 to control the driving of the start motor 10.
- the first relay R1 may be installed between the second connection line L2 and the power supply unit 50, and the electronic controller 20 may apply power to the signal terminal of the first relay R1.
- the contact terminal of the first relay R1 contacts and the power of the power supply unit 50 is second. It may be applied to the connection line (L2).
- the contact terminal of the second relay R2 may be connected to the current input terminal of the start motor 10, and the signal terminal of the second relay R2 may be the second connection line L2.
- the emergency start selection input unit 60 controls the short circuit of the third connection line L3 according to the input signal.
- the connection line L3 is branched from the second connection line L2 between the first and second relays R1 and R2 to be connected to the power supply unit 50. That is, when the third connection line L3 is connected to the short-circuit state according to the input of the emergency start selection input unit 60 and the current is applied, the power supply unit 50 of the power supply unit 50 is the same as the state where the first relay R1 is contacted. Power is applied to the start motor 10 so that the start motor 10 can be driven.
- the emergency start selection input unit 60 may be a toggle switch that can be turned on and off.
- the electronic control unit 20 is described as one component in one embodiment of the present invention, it may be a plurality of components physically.
- the electronic controller 20 may be classified into an ECU and a vehicle controller. As such, when divided into the ECU and the vehicle control unit, the separated components are connected to exchange signals with each other.
- FIG. 4 illustrates a case in which the emergency start selection input unit 60 is selected (on) by the operator in the circuit diagram of FIG. 3.
- the operator selects (on) the emergency start selection input unit 60, connects the third connection line L3 in a short circuit state, and bypasses the electronic control unit 20. Let's do it.
- the connection line L3 is connected by the emergency start selection input unit 60, the current of the power supply unit 50 is transmitted to the start motor 10 to temporarily start.
- the emergency start selection input unit 60 of the present specification in the inoperable state in which the electronic control unit 20 does not operate normally, the operator can drive the start motor.
- FIG. 5 to 7 is a diagram illustrating a circuit diagram for the emergency drive of the construction machine of FIG.
- the circuit diagram presented in this specification is a simplified circuit diagram for explaining the features of the present invention.
- a pilot hydraulic line for manipulating a control such as an electromagnetic proportional valve and a pilot hydraulic line connecting an electromagnetic proportional valve and a hydraulic pump, etc. Note that it is omitted.
- the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 control the flow rate or pressure of the hydraulic oil discharged from the hydraulic pump.
- the work machine of the excavator eg, at least one of the boom, arm and bucket
- the traveling motor of the excavator is the third electromagnetic proportional valve 30-3 . Discharged from the electro-hydraulic pump by control It is driven by hydraulic fluid.
- the emergency mode selection input unit 75 and the operation mode selection input unit 73 control the operation of the electromagnetic proportional valves 30-1, 30-2, 30-3. For example, when the emergency mode selection input unit 75 is switched to the driving mode and the operation mode selection input unit 73 is switched to the working mode, the current flows to the first and second electromagnetic proportional valves 30-1 and 30-2. Is supplied, and no current is supplied to the third electromagnetic proportional valve (30-3). On the other hand, when the emergency mode selection input unit 75 is switched to the drive mode, and the operation mode selection input unit 73 is switched to the travel mode, the second electromagnetic proportional valve 30-2 and the third electromagnetic proportional valve 30-3. Furnace current is supplied, and current is not supplied to the first electromagnetic proportional valve 30-1.
- the emergency mode selection input unit 75 when the emergency mode selection input unit 75 is switched to the non-drive mode, the first and second electromagnetic proportional valves 30-1 and 30-2 are controlled by the electronic control unit 20.
- the emergency mode selection input unit 75 When the emergency mode selection input unit 75 is switched to the non-drive mode, no current is supplied to the third electromagnetic proportional valve 30-3 regardless of the selection mode of the operation mode selection input unit 73. 2 and 5 to 7, the input terminal of the emergency mode selection input unit 75 is provided with a plurality of contacts, respectively, fourth connection lines L11 and L12 connected to the electronic control unit 20 or the power supply unit 50, respectively. And can be connected in parallel.
- the output terminal of the emergency mode selection input unit 75 may be connected through electromagnetic proportional valves 30-1 and 30-2 and fifth connection lines L21 and L22 respectively corresponding to the plurality of electromagnetic hydraulic pumps.
- the fourth connection lines L11 and L12 are connected to the output terminal of the operation mode selection input unit 73, and the input terminal of the operation mode selection input unit 73 is the power supply unit 50 and the sixth connection lines L31, L32 and L33. ) Can be connected.
- Each of the sixth connection lines L31, L32, and L33 may output currents having a magnitude corresponding to an operation mode (work or driving, etc.) selected by the driver 71-1, 71-2, and 71-3. It may be connected to the power supply unit 50 via).
- the emergency mode selection input unit 75 includes a first emergency mode switch 75-1, a second emergency mode switch 75-2, a third emergency mode switch 75-3, and And a fourth emergency mode switch 75-4.
- the emergency mode selection input unit 75 switches to the non-drive mode, all of the first to fourth emergency mode switches 75-1 to 75-4 are switched to the non-drive mode, and the emergency mode selection input unit 75
- the driving mode signal is input to the first to fourth emergency mode switches 75-1 to 75-4, all of them are switched to the driving mode.
- One terminal of the first emergency mode switch 75-1 is connected to one terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the first emergency mode switch 75-1 is an electronic control device ( 20) and an optional terminal of the operation mode select input 73.
- the other terminal of the first emergency mode switch 75-1 is connected to the electronic control unit 20, and the first emergency mode switch is
- the 75-1 is switched to the driving mode
- the other terminal of the first emergency mode switch 75-1 is connected to one terminal of the second operation mode selection switch 73-2 included in the operation mode selection input unit 73. Connected.
- One terminal of the second emergency mode switch 75-2 is connected to the other terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the second emergency mode switch 75-2 is the electronic control unit 20. And one of the ground terminals.
- the second emergency mode switch 75-2 is switched to the non-driven mode
- the other terminal of the second emergency mode switch 75-2 is connected to the electronic controller 20, and the second emergency mode switch is When the 75-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 75-2 is connected to the ground terminal.
- One terminal of the third emergency mode switch 75-3 is connected to one terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the third emergency mode switch 75-3 is the electronic control unit 20. And an operation mode selection input unit 73.
- the third emergency mode switch 75-3 is switched to the non-drive mode, the other terminal of the third emergency mode switch 75-3 is connected to the electronic control unit 20, and the third emergency mode switch is When the 75-3 is switched to the driving mode, the other terminal of the third emergency mode switch 75-3 is connected to one terminal of the first operation mode selection switch 73-1 included in the operation mode selection input unit 73. Connected.
- One terminal of the fourth emergency mode switch 75-4 is connected to the other terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the fourth emergency mode switch 75-4 is the electronic control unit 20. And one of the ground terminals.
- the fourth emergency mode switch 75-4 is switched to the non-drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the electronic control unit 20, and the fourth emergency mode switch is When 75-4 is switched to the drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the ground terminal.
- the emergency mode selection input unit 75 may be a toggle switch that can be turned on and off.
- the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection lines L11 and L12 when in the on state, and is connected to the electronic control unit 20 when in the off state.
- the electronic control unit 20 when the electronic control unit 20 is in normal operation, the emergency mode selection input unit 75 is in an off state, and the electronic control unit 20 and the electromagnetic proportional valves 30 (30-1, 30-2) are connected to each other. The driving of the electronic controller 20 and the electromagnetic proportional valves 30 (30-1, 30-2) is controlled.
- the electronic control unit 20 When the emergency mode selection input unit 75 is turned on in the inoperable state in which the electronic control unit 20 does not operate normally, the electronic control unit 20 is bypassed and, according to the output of the operation mode selection input unit 73, the electronic proportionality. The drive of the valves 30; 30-1, 30-2 is controlled.
- the operation mode selection input unit 73 is connected to the plurality of registers 71-1, 71-2, and 71-3 through the sixth connection lines L31, L32, and L33.
- the plurality of resistors 71-1, 71-2, and 71-3 may have different resistance values. Therefore, even if the same voltage is applied to the plurality of resistors, different current values are output. Since the required currents are different from each other according to the operation modes, matching is made with the resistors meeting the required currents of the operation modes.
- the operation mode selection input unit 73 may be a toggle switch capable of selecting a driving mode or a working mode.
- the driving mode selection input unit 73 is in the driving mode state, the operation mode selection input unit 73 is connected through the sixth connection line L32 so as to be connected to a register, eg, 71-2, which matches the required current of the driving mode.
- the operation mode selection input unit 73 is in the working mode, it is connected through the sixth connection lines L31 and L33 so as to be selectively connected to registers 71-1 and 71-3 matching the required current of the working mode. do.
- FIG. 5 shows an example of emergency driving when two electrohydraulic pumps are used in a work mode and one electrohydraulic pump is used in a driving mode.
- the registers 71-1 and 71-3 corresponding to the working mode may have a resistor having the same resistance value so that the two electrohydraulic pumps discharge the working oil evenly.
- the register 71-2 corresponding to the driving mode uses only one electrohydraulic pump in the driving mode, the output of the electrohydraulic pump can be made larger than when the two electrohydraulic pumps are used. Accordingly, the register 71-2 corresponding to the driving mode may have a resistor having a lower resistance value than the other registers 71-1 and 71-3.
- the operation mode selection input unit 73 includes a first operation mode selection switch 73-1, a second operation mode selection switch 73-2, and a third operation mode selection switch 73-. 3) and a fourth operation mode selection switch 73-4.
- the mode of the construction machine is switched to the operation mode by the operation mode selection input unit 73
- all of the first to fourth operation mode selection switches 73-4 are switched to the operation mode
- the operation mode selection input unit 73 is When the mode is changed to the driving mode, all of the first to fourth operation mode selection switches 73-4 are converted to the driving mode.
- One terminal of the first operation mode selection switch 73-1 is connected to the emergency mode selection input unit 75, and the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1. And a second register 71-2.
- the first operation mode selection switch 73-1 is switched to the working mode, the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1.
- the first operation mode selection switch 73-1 is switched to the travel mode, the other terminal of the first operation mode selection switch 73-1 is connected to the second register 71-2.
- one terminal of the first operation mode selection switch 73-1 may be connected to the other terminal of the third operation mode selection switch 73-3.
- One terminal of the second operation mode selection switch 73-2 is connected to the emergency mode selection input unit 75, and the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3. And an auxiliary mode relay 77.
- the second operation mode selection switch 73-2 is switched to the work mode, the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3.
- the second operation mode selection switch 73-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 is connected to the auxiliary mode relay 77.
- one terminal of the second operation mode selection switch 73-2 may be connected to the other terminal of the emergency mode selection input unit 75.
- One terminal of the third operation mode selection switch 73-3 is connected to one terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the third operation mode selection switch 73-3 is the electronic control unit. And selectively to either one of the 20 and the travel mode registers 78. For example, when the third operation mode selection switch 73-3 is switched to the work mode, the other terminal of the third operation mode selection switch 73-3 is connected to the electronic control unit 20, and the third operation mode. When the selection switch 73-3 is switched to the driving mode, the other terminal of the third operation mode selection switch 73-3 is connected to the driving mode register 78.
- One terminal of the fourth operation mode selection switch 73-4 is connected to the other terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the fourth operation mode selection switch 73-4 is the electronic control unit. Selectively connected to either 20 or a ground terminal. For example, when the fourth operation mode selection switch 73-4 is switched to the work mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the electronic controller 20, and the fourth operation mode selection is performed. When the switch 73-4 is switched to the driving mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the ground terminal.
- the auxiliary mode relay 77 includes a coil 77-2, a diode 77-3 and a switch 77-1 connected in parallel with the coil 77-2.
- One terminal of the switch 77-1 is commonly connected to one terminal of the first register 71-1, the second register 71-2, and the third register 71-3, and the switch 77
- the other terminal of -1) is selectively connected to one of the travel mode register 78 and the dummy terminal 77-0.
- the operation mode selection input unit 73 is switched to the work mode
- the other terminal of the switch 77-1 is connected to the dummy terminal 77-0, and the operation mode selection input unit 73 enters the driving mode.
- the other terminal of the switch 77-1 When switched, the other terminal of the switch 77-1 is connected to the travel mode register 78.
- the other terminal of the second operation mode selection switch 73-2 when the second operation mode selection switch 73-2 described above is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 may be connected to the coil 77-2.
- One terminal of the coil 77-2 may be selectively connected to the other terminal of the second operation mode selection switch 73-2, and the other terminal of the coil 77-2 may be one side of the switch 77-1.
- the operation mode selection input unit 73 may select any one of the driving mode and the working mode, and is connected to a register for outputting a current value matching the selected mode.
- the operation mode selection input unit 73 transfers the current value of the connected resistor to the electromagnetic proportional valves 30 (30-1, 30-2) through the emergency mode selection input unit 75 through the fourth connection lines L11 and L12. do. At this time, if the emergency mode selection input unit 75 is in the on state, the current value transmitted from the operation mode selection input unit 73 is output to the electromagnetic proportional valves 30 (30-1, 30-2) and the emergency mode selection input unit When 75 is in the off state, the control current of the electromagnetic proportional valve 30 is received from the electronic control unit 20.
- the emergency operation drive selection input unit 70 including the operation mode selection input unit 73 and the emergency mode selection input unit 75 of the present specification, even when the equipment controller of the construction machine is inoperable, the traveling and working operation of the construction machine Make it possible to temporarily move the construction machine in an emergency situation.
- FIG. 6 illustrates a case in which the operation mode selection input unit 73 selects a driving state and the emergency mode selection input unit 75 is in an on state in the circuit diagram of FIG. 5, and FIG. 7 illustrates an operation mode selection in the circuit diagram of FIG. 5.
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. , L12).
- the operation mode selection input unit 73 selects a working state, is connected to the sixth connection lines L31 and L33, and converts current values of the registers 71-1 and 71-3 into the electromagnetic proportional valve 30; To 30-2).
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. Are connected along.
- the operation mode selection input unit 73 selects a driving state, is connected to the sixth connection line L32, and outputs a current value of the register 71-2 to the electromagnetic proportional valve 30;
- FIG. 8 is a block diagram illustrating a distress notification device 80 according to an embodiment of the present specification.
- the distress notification device 80 may include a control unit 81 connected to an alarm lamp 82 provided on the top side of a construction machine and an emergency start selection input unit to control on / off of the warning lamp 82.
- the controller 81 is connected in parallel between the emergency start selection input unit 60 and the start motor 10, and turns on the warning light when the emergency start selection input unit is turned on.
- the control unit 81 When the control unit 81 is operated by the emergency start selection input unit, the light emitted from the warning lamp 82 may blink. In this case, you can easily draw attention to those around you and easily notify them of the distress. In addition, it is possible to transmit a signal by modulating the blinking of the light.
- the pattern of emitting light is defined as ' ⁇ ⁇ ⁇ ' Kim) can be used to mean 'SOS' of Morse code. This flashing of light may be achieved by turning on / off the power supplied to the beacon 82.
- sound may be generated in conjunction with the flashing of the light of the beacon 82.
- the sound divergence pattern may be the same as the light divergence pattern to mean 'SOS' of the Morse code.
- warning light 82 to transmit the distress information in the emergency state of the present disclosure, it is possible to facilitate the positioning in the night situation.
- the location information acquisition unit 90 may acquire its own location information using, for example, a global positioning system (GPS).
- GPS global positioning system
- the control unit 81 acquires the location information through the external location information acquisition unit 90
- the light emitted from the warning lamp may be turned on to mean the location information.
- the distress structure may be lit to mean position information by modulating the blinking of light according to the Morse code.
- the location information may be longitude / latitude or address information.
- the controller 81 may be connected to the emergency drive selection input unit 70 instead of the emergency start selection input unit 60, or may be connected to both the emergency start selection input unit 60 and the emergency drive selection input unit 70. Can be. In this case, the controller 81 may turn on the beacon even when the emergency drive is selected.
- the communication terminal 83 is connected in parallel between the emergency start select input unit 60 and / or the emergency drive select input unit 70 and the start motor 10, and when the emergency start select input unit is turned on, the communication terminal 83 is connected to the communication terminal 83. Deliver a signal for distress notification to the outside.
- the communication terminal 83 is a data transmission / reception apparatus provided in the construction machine, and transmits and receives various information of the construction machine with a TMS server (not shown). This various information includes the position information of the construction machine (20).
- the communication terminal 83 may include a short range communication module such as a Bluetooth or Wi-Fi communication module.
- a short-range communication module such as a Bluetooth or Wi-Fi communication module.
- the short-range communication is connected to the communication terminal of the surrounding construction machine may transmit distress notification and location information.
- the communication terminal 83 may include a mobile communication module such as CDMA, GSM, WCDMA, and the like, and a satellite communication module communicating with a communication satellite.
- a mobile communication module such as CDMA, GSM, WCDMA, and the like
- distress notification and location information may be transmitted to a TMS server (not shown) and another mobile communication terminal.
- the TMS server transmits and receives information with a pre-registered construction machine periodically or aperiodically, and stores and manages information of the construction machine.
- the communication terminal 83 when the emergency start selection input unit 60 is turned on, notifies the server or a predetermined terminal of an abnormal situation such as an inoperability of the electronic control unit 20.
- the preset terminal may be an owner of the construction machine or a terminal of a worker working in the same workplace.
- the communication terminal 83 may transmit the location information acquired by the location information acquisition unit 90 together with the server or a predetermined terminal when the operation is notified.
- the communication terminal 83 may transmit identification information of the construction machine together with the inoperable notification, so that the server can identify the terminal informing the inoperable operation.
- FIG. 9 is a diagram exemplarily illustrating selection input units according to an embodiment of the present specification.
- the emergency start selection input unit 60, the operation mode selection input unit 73, and the emergency mode selection input unit 75 may be provided in the form of a toggle switch that can be turned on and off by one-touch operation of the driver.
- the operation mode selection input unit 73 selects work or travel, and the emergency drive mode selection input unit 75 bypasses the electronic control unit 20.
- These selection input units may be provided separately from the conventional input unit on the dashboard screen or the control box.
- FIG. 10 is a flowchart illustrating a driving method of an excavator according to an embodiment of the present invention.
- the operator starts the emergency start from the emergency start selection input unit 60 to turn on the mode switch in the emergency start selection input unit (S2).
- distress information may be displayed (S2). For example, light may be generated from a warning lamp. This light may flash periodically.
- the operator switches to the emergency work mode by the emergency work drive selection input unit 70 and switches the operation mode selection input unit 73 to the work mode or the driving mode. (S4). Then, a current preset by the resistor may be supplied to the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 (S5). Accordingly, the work machine and the traveling motor of the excavator can operate normally by the operation of the joystick and the pedal. In this case, the excavator located in the rough land can escape to a safe place (S6).
- the structure and method according to an embodiment of the present invention can be applied to a variety of construction machinery such as wheel loaders and trucks in addition to the above-described excavator.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- FIG. 1 is a diagram illustrating a block diagram of an emergency drive system of a construction machine according to an embodiment of the present disclosure
- Figure 2 is a block of emergency work drive emergency work drive selection input unit of a construction machine according to an embodiment of the present specification The figure illustrates the figure.
- the emergency drive device of a construction machine includes a start motor 10, an electronic control unit 20, an electromagnetic proportional valve 30, an electromagnetic hydraulic pump 40, a power supply unit 50, and an emergency start selection input unit. 60, the emergency work drive selection input unit 70 and the distress notification device (80).
- the start motor 10 is driven by the electric energy supplied from the power supply unit 50.
- the start motor 10 converts the supplied electric energy into rotational energy to drive an engine (not shown).
- the engine burns fuel to generate power.
- the electronic controller 20 applies the current of the power supply unit 50 to the start motor 10 to drive the start motor 10.
- the electronic controller 20 may control the opening and closing degree of the electronic proportional pressure reducing valve (EPPRV) to control the flow rate of the pilot hydraulic pressure required for the swash plate angle control of the electromagnetic hydraulic pump 40. . Accordingly, the electronic controller 20 may control the hydraulic oil discharge flow rate and the hydraulic pressure of the electromagnetic hydraulic pump 40.
- the emergency start selection input unit 60 may connect the power supply unit 50 to the start motor 10 in place of the electronic control unit 20. That is, the operator changes the current transfer path between the start motor 10 and the power supply unit 50 by operating the emergency start selection input unit 60 when the electronic control unit 20 is inoperable. As a result, the power supply unit 50 is connected to the start motor 10 without driving the electronic control unit 20, thereby driving the start motor 10.
- the emergency work drive selection input unit 70 changes the transmission path of the control signal to the electromagnetic proportional valve 30. That is, when the electronic control unit 20 is inoperable, the operator operates the emergency work drive selection input unit 70 to output a preset electric signal to the electromagnetic proportional valve 30 without temporarily passing through the electronic control unit 20, thereby temporarily The electro-hydraulic pump 40 of the construction machine to be driven.
- the distress notification device 80 transmits distress information to a terminal and a server which are set in advance through a warning light and / or a communication terminal.
- the distress notification device 80 will be described in detail later.
- the emergency work drive selection input unit 70 includes one or more registers 71 (71-1, 71-2, 71-3), an operation mode selection input unit 73, and an emergency mode selection input unit 75.
- three registers are exemplified, but are not limited thereto.
- One or more registers 71 output different preset electrical signals.
- the registers with different outputs can temporarily control the opening and closing degree of the electromagnetic proportional valve 30 in response to the operation of the operation mode selection input unit 73.
- the electronic proportional valve 30 may be limited to a predetermined level or less, unlike a normal state. This is because emergency drive is used to escape from a hazardous area or situation in an emergency.
- the operation mode selection input unit 73 selectively connects any one of the registers for outputting different electric signals and the electromagnetic proportional valves 30.
- Each of the electromagnetic proportional valves 30 may have a different resistance value, whereby the output voltage or current may be formed differently even when the same current is supplied from the power supply unit 50.
- the selection of such a register may be performed by selection of a register corresponding to a driving or a task selected by the driver.
- the emergency mode selection input unit 75 changes the transmission path of the control signal to the electromagnetic proportional valve 30 so as to output a preset electrical signal to the electromagnetic proportional valve 30 without passing through the electronic control unit 20.
- 3 and 4 is a diagram illustrating a circuit diagram for the emergency start of the construction machine of FIG.
- circuit diagrams presented herein are simplified circuit diagrams to illustrate features of the present invention.
- the electronic control unit 20 of the construction machine is connected to the power supply unit 50 by the first connection line L1, and the second connection line L2 through the first relay R1. Can control the short circuit.
- the electronic controller 20 may control the power supplied from the power supply unit 50 to the start motor 10 through the control of the first relay R1.
- the power supply control unit 170 includes a first power control switch 171 and a second power control switch 172.
- the first breaker 201 is connected between the battery 130 and the electronic control device 140.
- the second breaker 202 is connected between the battery 130 and the first power control switch 171.
- the first power control switch 171 is connected between the second breaker 202 and the second power control switch 172.
- the second power control switch 172 is connected between the first power control switch 171 and the electronic control device 140. In this case, the contact point between the second power control switch 172 and the first power control switch 171 is connected to the electronic control device 140.
- One terminal of the emergency start selection input unit 60 is connected to the battery, that is, the power supply unit 50 through the second power control switch 172, the first power control switch 171, and the second breaker 202.
- the other terminal of the emergency start selection input unit 60 is connected to the control terminal of the second relay R2.
- the emergency start select input unit 60 is connected between the power supply unit 50 and the control terminal of the second relay R2.
- the contact between the emergency start selection input unit 60 and the second power control switch 172 is connected to the electronic control unit 20.
- the first power control switch 171 and the second power control switch 172 are turned on, so that the first power control switch 171 and the second power source with the electronic control unit 20 turned on.
- the voltage of the battery 130 is supplied through the control switch 172.
- the second power control switch 172 is turned on after the first power control switch 171 is turned on.
- the first power control switch 171 and the second power control switch 172 are simultaneously turned on for a predetermined period of time.
- the electronic controller 20 When the start signal S1 is input, the electronic controller 20 outputs a current for driving to the start motor 10 to control the driving of the start motor 10.
- the first relay R1 may be installed between the second connection line L2 and the power supply unit 50, and the electronic controller 20 may apply power to the signal terminal of the first relay R1.
- the contact terminal of the first relay R1 contacts and the power of the power supply unit 50 is second. It may be applied to the connection line (L2).
- the contact terminal of the second relay R2 may be connected to the current input terminal of the start motor 10, and the signal terminal of the second relay R2 may be the second connection line L2.
- the emergency start selection input unit 60 controls the short circuit of the third connection line L3 according to the input signal.
- the connection line L3 is branched from the second connection line L2 between the first and second relays R1 and R2 to be connected to the power supply unit 50. That is, when the third connection line L3 is connected to the short-circuit state according to the input of the emergency start selection input unit 60 and the current is applied, the power supply unit 50 of the power supply unit 50 is the same as the state where the first relay R1 is contacted. Power is applied to the start motor 10 so that the start motor 10 can be driven.
- the emergency start selection input unit 60 may be a toggle switch that can be turned on and off.
- the electronic control unit 20 is described as one component in one embodiment of the present invention, it may be a plurality of components physically.
- the electronic controller 20 may be classified into an ECU and a vehicle controller. As such, when divided into the ECU and the vehicle control unit, the separated components are connected to exchange signals with each other.
- FIG. 4 illustrates a case in which the emergency start selection input unit 60 is selected (on) by the operator in the circuit diagram of FIG. 3.
- the operator selects (on) the emergency start selection input unit 60, connects the third connection line L3 in a short circuit state, and bypasses the electronic control unit 20. Let's do it.
- the connection line L3 is connected by the emergency start selection input unit 60, the current of the power supply unit 50 is transmitted to the start motor 10 to temporarily start.
- the emergency start selection input unit 60 of the present specification in the inoperable state in which the electronic control unit 20 does not operate normally, the operator can drive the start motor.
- FIG. 5 to 7 is a diagram illustrating a circuit diagram for the emergency drive of the construction machine of FIG.
- the circuit diagram presented in this specification is a simplified circuit diagram for explaining the features of the present invention.
- a pilot hydraulic line for manipulating a control such as an electromagnetic proportional valve and a pilot hydraulic line connecting an electromagnetic proportional valve and a hydraulic pump, etc. Note that it is omitted.
- the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 control the flow rate or pressure of the hydraulic oil discharged from the hydraulic pump.
- the work machine of the excavator eg, at least one of the boom, arm and bucket
- the traveling motor of the excavator is the third electromagnetic proportional valve 30-3 . Discharged from the electro-hydraulic pump by control It is driven by hydraulic fluid.
- the emergency mode selection input unit 75 and the operation mode selection input unit 73 control the operation of the electromagnetic proportional valves 30-1, 30-2, 30-3. For example, when the emergency mode selection input unit 75 is switched to the driving mode and the operation mode selection input unit 73 is switched to the working mode, the current flows to the first and second electromagnetic proportional valves 30-1 and 30-2. Is supplied, and no current is supplied to the third electromagnetic proportional valve (30-3). On the other hand, when the emergency mode selection input unit 75 is switched to the drive mode, and the operation mode selection input unit 73 is switched to the travel mode, the second electromagnetic proportional valve 30-2 and the third electromagnetic proportional valve 30-3. Furnace current is supplied, and current is not supplied to the first electromagnetic proportional valve 30-1.
- the emergency mode selection input unit 75 when the emergency mode selection input unit 75 is switched to the non-drive mode, the first and second electromagnetic proportional valves 30-1 and 30-2 are controlled by the electronic control unit 20.
- the emergency mode selection input unit 75 When the emergency mode selection input unit 75 is switched to the non-drive mode, no current is supplied to the third electromagnetic proportional valve 30-3 regardless of the selection mode of the operation mode selection input unit 73. 2 and 5 to 7, the input terminal of the emergency mode selection input unit 75 is provided with a plurality of contacts, respectively, fourth connection lines L11 and L12 connected to the electronic control unit 20 or the power supply unit 50, respectively. And can be connected in parallel.
- the output terminal of the emergency mode selection input unit 75 may be connected through electromagnetic proportional valves 30-1 and 30-2 and fifth connection lines L21 and L22 respectively corresponding to the plurality of electromagnetic hydraulic pumps.
- the fourth connection lines L11 and L12 are connected to the output terminal of the operation mode selection input unit 73, and the input terminal of the operation mode selection input unit 73 is the power supply unit 50 and the sixth connection lines L31, L32 and L33. ) Can be connected.
- Each of the sixth connection lines L31, L32, and L33 may output currents having a magnitude corresponding to an operation mode (work or driving, etc.) selected by the driver 71-1, 71-2, and 71-3. It may be connected to the power supply unit 50 via).
- the emergency mode selection input unit 75 includes a first emergency mode switch 75-1, a second emergency mode switch 75-2, a third emergency mode switch 75-3, and And a fourth emergency mode switch 75-4.
- the emergency mode selection input unit 75 switches to the non-drive mode, all of the first to fourth emergency mode switches 75-1 to 75-4 are switched to the non-drive mode, and the emergency mode selection input unit 75
- the driving mode signal is input to the first to fourth emergency mode switches 75-1 to 75-4, all of them are switched to the driving mode.
- One terminal of the first emergency mode switch 75-1 is connected to one terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the first emergency mode switch 75-1 is an electronic control device ( 20) and an optional terminal of the operation mode select input 73.
- the other terminal of the first emergency mode switch 75-1 is connected to the electronic control unit 20, and the first emergency mode switch is
- the 75-1 is switched to the driving mode
- the other terminal of the first emergency mode switch 75-1 is connected to one terminal of the second operation mode selection switch 73-2 included in the operation mode selection input unit 73. Connected.
- One terminal of the second emergency mode switch 75-2 is connected to the other terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the second emergency mode switch 75-2 is the electronic control unit 20. And one of the ground terminals.
- the second emergency mode switch 75-2 is switched to the non-driven mode
- the other terminal of the second emergency mode switch 75-2 is connected to the electronic controller 20, and the second emergency mode switch is When the 75-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 75-2 is connected to the ground terminal.
- One terminal of the third emergency mode switch 75-3 is connected to one terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the third emergency mode switch 75-3 is the electronic control unit 20. And an operation mode selection input unit 73.
- the third emergency mode switch 75-3 is switched to the non-drive mode, the other terminal of the third emergency mode switch 75-3 is connected to the electronic control unit 20, and the third emergency mode switch is When the 75-3 is switched to the driving mode, the other terminal of the third emergency mode switch 75-3 is connected to one terminal of the first operation mode selection switch 73-1 included in the operation mode selection input unit 73. Connected.
- One terminal of the fourth emergency mode switch 75-4 is connected to the other terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the fourth emergency mode switch 75-4 is the electronic control unit 20. And one of the ground terminals.
- the fourth emergency mode switch 75-4 is switched to the non-drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the electronic control unit 20, and the fourth emergency mode switch is When 75-4 is switched to the drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the ground terminal.
- the emergency mode selection input unit 75 may be a toggle switch that can be turned on and off.
- the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection lines L11 and L12 when in the on state, and is connected to the electronic control unit 20 when in the off state.
- the electronic control unit 20 when the electronic control unit 20 is in normal operation, the emergency mode selection input unit 75 is in an off state, and the electronic control unit 20 and the electromagnetic proportional valves 30 (30-1, 30-2) are connected to each other. The driving of the electronic controller 20 and the electromagnetic proportional valves 30 (30-1, 30-2) is controlled.
- the electronic control unit 20 When the emergency mode selection input unit 75 is turned on in the inoperable state in which the electronic control unit 20 does not operate normally, the electronic control unit 20 is bypassed and, according to the output of the operation mode selection input unit 73, the electronic proportionality. The drive of the valves 30; 30-1, 30-2 is controlled.
- the operation mode selection input unit 73 is connected to the plurality of registers 71-1, 71-2, and 71-3 through the sixth connection lines L31, L32, and L33.
- the plurality of resistors 71-1, 71-2, and 71-3 may have different resistance values. Therefore, even if the same voltage is applied to the plurality of resistors, different current values are output. Since the required currents are different from each other according to the operation modes, matching is made with the resistors meeting the required currents of the operation modes.
- the operation mode selection input unit 73 may be a toggle switch capable of selecting a driving mode or a working mode.
- the driving mode selection input unit 73 is in the driving mode state, the operation mode selection input unit 73 is connected through the sixth connection line L32 so as to be connected to a register, eg, 71-2, which matches the required current of the driving mode.
- the operation mode selection input unit 73 is in the working mode, it is connected through the sixth connection lines L31 and L33 so as to be selectively connected to registers 71-1 and 71-3 matching the required current of the working mode. do.
- FIG. 5 shows an example of emergency driving when two electrohydraulic pumps are used in a work mode and one electrohydraulic pump is used in a driving mode.
- the registers 71-1 and 71-3 corresponding to the working mode may have a resistor having the same resistance value so that the two electrohydraulic pumps discharge the working oil evenly.
- the register 71-2 corresponding to the driving mode uses only one electrohydraulic pump in the driving mode, the output of the electrohydraulic pump can be made larger than when the two electrohydraulic pumps are used. Accordingly, the register 71-2 corresponding to the driving mode may have a resistor having a lower resistance value than the other registers 71-1 and 71-3.
- the operation mode selection input unit 73 includes a first operation mode selection switch 73-1, a second operation mode selection switch 73-2, and a third operation mode selection switch 73-. 3) and a fourth operation mode selection switch 73-4.
- the mode of the construction machine is switched to the operation mode by the operation mode selection input unit 73
- all of the first to fourth operation mode selection switches 73-4 are switched to the operation mode
- the operation mode selection input unit 73 is When the mode is changed to the driving mode, all of the first to fourth operation mode selection switches 73-4 are converted to the driving mode.
- One terminal of the first operation mode selection switch 73-1 is connected to the emergency mode selection input unit 75, and the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1. And a second register 71-2.
- the first operation mode selection switch 73-1 is switched to the working mode, the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1.
- the first operation mode selection switch 73-1 is switched to the travel mode, the other terminal of the first operation mode selection switch 73-1 is connected to the second register 71-2.
- one terminal of the first operation mode selection switch 73-1 may be connected to the other terminal of the third operation mode selection switch 73-3.
- One terminal of the second operation mode selection switch 73-2 is connected to the emergency mode selection input unit 75, and the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3. And an auxiliary mode relay 77.
- the second operation mode selection switch 73-2 is switched to the work mode, the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3.
- the second operation mode selection switch 73-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 is connected to the auxiliary mode relay 77.
- one terminal of the second operation mode selection switch 73-2 may be connected to the other terminal of the emergency mode selection input unit 75.
- One terminal of the third operation mode selection switch 73-3 is connected to one terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the third operation mode selection switch 73-3 is the electronic control unit. And selectively to either one of the 20 and the travel mode registers 78. For example, when the third operation mode selection switch 73-3 is switched to the work mode, the other terminal of the third operation mode selection switch 73-3 is connected to the electronic control unit 20, and the third operation mode. When the selection switch 73-3 is switched to the driving mode, the other terminal of the third operation mode selection switch 73-3 is connected to the driving mode register 78.
- One terminal of the fourth operation mode selection switch 73-4 is connected to the other terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the fourth operation mode selection switch 73-4 is the electronic control unit. Selectively connected to either 20 or a ground terminal. For example, when the fourth operation mode selection switch 73-4 is switched to the work mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the electronic controller 20, and the fourth operation mode selection is performed. When the switch 73-4 is switched to the driving mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the ground terminal.
- the auxiliary mode relay 77 includes a coil 77-2, a diode 77-3 and a switch 77-1 connected in parallel with the coil 77-2.
- One terminal of the switch 77-1 is commonly connected to one terminal of the first register 71-1, the second register 71-2, and the third register 71-3, and the switch 77
- the other terminal of -1) is selectively connected to one of the travel mode register 78 and the dummy terminal 77-0.
- the operation mode selection input unit 73 is switched to the work mode
- the other terminal of the switch 77-1 is connected to the dummy terminal 77-0, and the operation mode selection input unit 73 enters the driving mode.
- the other terminal of the switch 77-1 When switched, the other terminal of the switch 77-1 is connected to the travel mode register 78.
- the other terminal of the second operation mode selection switch 73-2 when the second operation mode selection switch 73-2 described above is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 may be connected to the coil 77-2.
- One terminal of the coil 77-2 may be selectively connected to the other terminal of the second operation mode selection switch 73-2, and the other terminal of the coil 77-2 may be one side of the switch 77-1.
- the operation mode selection input unit 73 may select any one of the driving mode and the working mode, and is connected to a register for outputting a current value matching the selected mode.
- the operation mode selection input unit 73 transfers the current value of the connected resistor to the electromagnetic proportional valves 30 (30-1, 30-2) through the emergency mode selection input unit 75 through the fourth connection lines L11 and L12. do. At this time, if the emergency mode selection input unit 75 is in the on state, the current value transmitted from the operation mode selection input unit 73 is output to the electromagnetic proportional valves 30 (30-1, 30-2) and the emergency mode selection input unit When 75 is in the off state, the control current of the electromagnetic proportional valve 30 is received from the electronic control unit 20.
- the emergency operation drive selection input unit 70 including the operation mode selection input unit 73 and the emergency mode selection input unit 75 of the present specification, even when the equipment controller of the construction machine is inoperable, the traveling and working operation of the construction machine Make it possible to temporarily move the construction machine in an emergency situation.
- FIG. 6 illustrates a case in which the operation mode selection input unit 73 selects a driving state and the emergency mode selection input unit 75 is in an on state in the circuit diagram of FIG. 5, and FIG. 7 illustrates an operation mode selection in the circuit diagram of FIG. 5.
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. , L12).
- the operation mode selection input unit 73 selects a working state, is connected to the sixth connection lines L31 and L33, and converts current values of the registers 71-1 and 71-3 into the electromagnetic proportional valve 30; To 30-2).
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. Are connected along.
- the operation mode selection input unit 73 selects a driving state, is connected to the sixth connection line L32, and outputs a current value of the register 71-2 to the electromagnetic proportional valve 30;
- FIG. 8 is a block diagram illustrating a distress notification device 80 according to an embodiment of the present specification.
- the distress notification device 80 may include a control unit 81 connected to an alarm lamp 82 provided on the top side of a construction machine and an emergency start selection input unit to control on / off of the warning lamp 82.
- the controller 81 is connected in parallel between the emergency start selection input unit 60 and the start motor 10, and turns on the warning light when the emergency start selection input unit is turned on.
- the control unit 81 When the control unit 81 is operated by the emergency start selection input unit, the light emitted from the warning lamp 82 may blink. In this case, you can easily draw attention to those around you and easily notify them of the distress. In addition, it is possible to transmit a signal by modulating the blinking of the light.
- the pattern of emitting light is defined as ' ⁇ ⁇ ⁇ ' Kim) can be used to mean 'SOS' of Morse code. This flashing of light may be achieved by turning on / off the power supplied to the beacon 82.
- sound may be generated in conjunction with the flashing of the light of the beacon 82.
- the sound divergence pattern may be the same as the light divergence pattern to mean 'SOS' of the Morse code.
- warning light 82 to transmit the distress information in the emergency state of the present disclosure, it is possible to facilitate the positioning in the night situation.
- the location information acquisition unit 90 may acquire its own location information using, for example, a global positioning system (GPS).
- GPS global positioning system
- the control unit 81 acquires the location information through the external location information acquisition unit 90
- the light emitted from the warning lamp may be turned on to mean the location information.
- the distress structure may be lit to mean position information by modulating the blinking of light according to the Morse code.
- the location information may be longitude / latitude or address information.
- the controller 81 may be connected to the emergency drive selection input unit 70 instead of the emergency start selection input unit 60, or may be connected to both the emergency start selection input unit 60 and the emergency drive selection input unit 70. Can be. In this case, the controller 81 may turn on the beacon even when the emergency drive is selected.
- the communication terminal 83 is connected in parallel between the emergency start select input unit 60 and / or the emergency drive select input unit 70 and the start motor 10, and when the emergency start select input unit is turned on, the communication terminal 83 is connected to the communication terminal 83. Deliver a signal for distress notification to the outside.
- the communication terminal 83 is a data transmission / reception apparatus provided in the construction machine, and transmits and receives various information of the construction machine with a TMS server (not shown). This various information includes the position information of the construction machine (20).
- the communication terminal 83 may include a short range communication module such as a Bluetooth or Wi-Fi communication module.
- a short-range communication module such as a Bluetooth or Wi-Fi communication module.
- the short-range communication is connected to the communication terminal of the surrounding construction machine may transmit distress notification and location information.
- the communication terminal 83 may include a mobile communication module such as CDMA, GSM, WCDMA, and the like, and a satellite communication module communicating with a communication satellite.
- a mobile communication module such as CDMA, GSM, WCDMA, and the like
- distress notification and location information may be transmitted to a TMS server (not shown) and another mobile communication terminal.
- the TMS server transmits and receives information with a pre-registered construction machine periodically or aperiodically, and stores and manages information of the construction machine.
- the communication terminal 83 when the emergency start selection input unit 60 is turned on, notifies the server or a predetermined terminal of an abnormal situation such as an inoperability of the electronic control unit 20.
- the preset terminal may be an owner of the construction machine or a terminal of a worker working in the same workplace.
- the communication terminal 83 may transmit the location information acquired by the location information acquisition unit 90 together with the server or a predetermined terminal when the operation is notified.
- the communication terminal 83 may transmit identification information of the construction machine together with the inoperable notification, so that the server can identify the terminal informing the inoperable operation.
- FIG. 9 is a diagram exemplarily illustrating selection input units according to an embodiment of the present specification.
- the emergency start selection input unit 60, the operation mode selection input unit 73, and the emergency mode selection input unit 75 may be provided in the form of a toggle switch that can be turned on and off by one-touch operation of the driver.
- the operation mode selection input unit 73 selects work or travel, and the emergency drive mode selection input unit 75 bypasses the electronic control unit 20.
- These selection input units may be provided separately from the conventional input unit on the dashboard screen or the control box.
- FIG. 10 is a flowchart illustrating a driving method of an excavator according to an embodiment of the present invention.
- the operator starts the emergency start from the emergency start selection input unit 60 to turn on the mode switch in the emergency start selection input unit (S2).
- distress information may be displayed (S2). For example, light may be generated from a warning lamp. This light may flash periodically.
- the operator switches to the emergency work mode by the emergency work drive selection input unit 70 and switches the operation mode selection input unit 73 to the work mode or the driving mode. (S4). Then, a current preset by the resistor may be supplied to the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 (S5). Accordingly, the work machine and the traveling motor of the excavator can operate normally by the operation of the joystick and the pedal. In this case, the excavator located in the rough land can escape to a safe place (S6).
- the structure and method according to an embodiment of the present invention can be applied to a variety of construction machinery such as wheel loaders and trucks in addition to the above-described excavator.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- FIG. 1 is a diagram illustrating a block diagram of an emergency drive system of a construction machine according to an embodiment of the present disclosure
- Figure 2 is a block of emergency work drive emergency work drive selection input unit of a construction machine according to an embodiment of the present specification The figure illustrates the figure.
- the emergency drive device of a construction machine includes a start motor 10, an electronic control unit 20, an electromagnetic proportional valve 30, an electromagnetic hydraulic pump 40, a power supply unit 50, and an emergency start selection input unit. 60, the emergency work drive selection input unit 70 and the distress notification device (80).
- the start motor 10 is driven by the electric energy supplied from the power supply unit 50.
- the start motor 10 converts the supplied electric energy into rotational energy to drive an engine (not shown).
- the engine burns fuel to generate power.
- the electronic controller 20 applies the current of the power supply unit 50 to the start motor 10 to drive the start motor 10.
- the electronic controller 20 may control the opening and closing degree of the electronic proportional pressure reducing valve (EPPRV) to control the flow rate of the pilot hydraulic pressure required for the swash plate angle control of the electromagnetic hydraulic pump 40. . Accordingly, the electronic controller 20 may control the hydraulic oil discharge flow rate and the hydraulic pressure of the electromagnetic hydraulic pump 40.
- the emergency start selection input unit 60 may connect the power supply unit 50 to the start motor 10 in place of the electronic control unit 20. That is, the operator changes the current transfer path between the start motor 10 and the power supply unit 50 by operating the emergency start selection input unit 60 when the electronic control unit 20 is inoperable. As a result, the power supply unit 50 is connected to the start motor 10 without driving the electronic control unit 20, thereby driving the start motor 10.
- the emergency work drive selection input unit 70 changes the transmission path of the control signal to the electromagnetic proportional valve 30. That is, when the electronic control unit 20 is inoperable, the operator operates the emergency work drive selection input unit 70 to output a preset electric signal to the electromagnetic proportional valve 30 without temporarily passing through the electronic control unit 20, thereby temporarily The electro-hydraulic pump 40 of the construction machine to be driven.
- the distress notification device 80 transmits distress information to a terminal and a server which are set in advance through a warning light and / or a communication terminal.
- the distress notification device 80 will be described in detail later.
- the emergency work drive selection input unit 70 includes one or more registers 71 (71-1, 71-2, 71-3), an operation mode selection input unit 73, and an emergency mode selection input unit 75.
- three registers are exemplified, but are not limited thereto.
- One or more registers 71 output different preset electrical signals.
- the registers with different outputs can temporarily control the opening and closing degree of the electromagnetic proportional valve 30 in response to the operation of the operation mode selection input unit 73.
- the electronic proportional valve 30 may be limited to a predetermined level or less, unlike a normal state. This is because emergency drive is used to escape from a hazardous area or situation in an emergency.
- the operation mode selection input unit 73 selectively connects any one of the registers for outputting different electric signals and the electromagnetic proportional valves 30.
- Each of the electromagnetic proportional valves 30 may have a different resistance value, whereby the output voltage or current may be formed differently even when the same current is supplied from the power supply unit 50.
- the selection of such a register may be performed by selection of a register corresponding to a driving or a task selected by the driver.
- the emergency mode selection input unit 75 changes the transmission path of the control signal to the electromagnetic proportional valve 30 so as to output a preset electrical signal to the electromagnetic proportional valve 30 without passing through the electronic control unit 20.
- 3 and 4 is a diagram illustrating a circuit diagram for the emergency start of the construction machine of FIG.
- circuit diagrams presented herein are simplified circuit diagrams to illustrate features of the present invention.
- the electronic control unit 20 of the construction machine is connected to the power supply unit 50 by the first connection line L1, and the second connection line L2 through the first relay R1. Can control the short circuit.
- the electronic controller 20 may control the power supplied from the power supply unit 50 to the start motor 10 through the control of the first relay R1.
- the power supply control unit 170 includes a first power control switch 171 and a second power control switch 172.
- the first breaker 201 is connected between the battery 130 and the electronic control device 140.
- the second breaker 202 is connected between the battery 130 and the first power control switch 171.
- the first power control switch 171 is connected between the second breaker 202 and the second power control switch 172.
- the second power control switch 172 is connected between the first power control switch 171 and the electronic control device 140. In this case, the contact point between the second power control switch 172 and the first power control switch 171 is connected to the electronic control device 140.
- One terminal of the emergency start selection input unit 60 is connected to the battery, that is, the power supply unit 50 through the second power control switch 172, the first power control switch 171, and the second breaker 202.
- the other terminal of the emergency start selection input unit 60 is connected to the control terminal of the second relay R2.
- the emergency start select input unit 60 is connected between the power supply unit 50 and the control terminal of the second relay R2.
- the contact between the emergency start selection input unit 60 and the second power control switch 172 is connected to the electronic control unit 20.
- the first power control switch 171 and the second power control switch 172 are turned on, so that the first power control switch 171 and the second power source with the electronic control unit 20 turned on.
- the voltage of the battery 130 is supplied through the control switch 172.
- the second power control switch 172 is turned on after the first power control switch 171 is turned on.
- the first power control switch 171 and the second power control switch 172 are simultaneously turned on for a predetermined period of time.
- the electronic controller 20 When the start signal S1 is input, the electronic controller 20 outputs a current for driving to the start motor 10 to control the driving of the start motor 10.
- the first relay R1 may be installed between the second connection line L2 and the power supply unit 50, and the electronic controller 20 may apply power to the signal terminal of the first relay R1.
- the contact terminal of the first relay R1 contacts and the power of the power supply unit 50 is second. It may be applied to the connection line (L2).
- the contact terminal of the second relay R2 may be connected to the current input terminal of the start motor 10, and the signal terminal of the second relay R2 may be the second connection line L2.
- the emergency start selection input unit 60 controls the short circuit of the third connection line L3 according to the input signal.
- the connection line L3 is branched from the second connection line L2 between the first and second relays R1 and R2 to be connected to the power supply unit 50. That is, when the third connection line L3 is connected to the short-circuit state according to the input of the emergency start selection input unit 60 and the current is applied, the power supply unit 50 of the power supply unit 50 is the same as the state where the first relay R1 is contacted. Power is applied to the start motor 10 so that the start motor 10 can be driven.
- the emergency start selection input unit 60 may be a toggle switch that can be turned on and off.
- the electronic control unit 20 is described as one component in one embodiment of the present invention, it may be a plurality of components physically.
- the electronic controller 20 may be classified into an ECU and a vehicle controller. As such, when divided into the ECU and the vehicle control unit, the separated components are connected to exchange signals with each other.
- FIG. 4 illustrates a case in which the emergency start selection input unit 60 is selected (on) by the operator in the circuit diagram of FIG. 3.
- the operator selects (on) the emergency start selection input unit 60, connects the third connection line L3 in a short circuit state, and bypasses the electronic control unit 20. Let's do it.
- the connection line L3 is connected by the emergency start selection input unit 60, the current of the power supply unit 50 is transmitted to the start motor 10 to temporarily start.
- the emergency start selection input unit 60 of the present specification in the inoperable state in which the electronic control unit 20 does not operate normally, the operator can drive the start motor.
- FIG. 5 to 7 is a diagram illustrating a circuit diagram for the emergency drive of the construction machine of FIG.
- the circuit diagram presented in this specification is a simplified circuit diagram for explaining the features of the present invention.
- a pilot hydraulic line for manipulating a control such as an electromagnetic proportional valve and a pilot hydraulic line connecting an electromagnetic proportional valve and a hydraulic pump, etc. Note that it is omitted.
- the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 control the flow rate or pressure of the hydraulic oil discharged from the hydraulic pump.
- the work machine of the excavator eg, at least one of the boom, arm and bucket
- the traveling motor of the excavator is the third electromagnetic proportional valve 30-3 . Discharged from the electro-hydraulic pump by control It is driven by hydraulic fluid.
- the emergency mode selection input unit 75 and the operation mode selection input unit 73 control the operation of the electromagnetic proportional valves 30-1, 30-2, 30-3. For example, when the emergency mode selection input unit 75 is switched to the driving mode and the operation mode selection input unit 73 is switched to the working mode, the current flows to the first and second electromagnetic proportional valves 30-1 and 30-2. Is supplied, and no current is supplied to the third electromagnetic proportional valve (30-3). On the other hand, when the emergency mode selection input unit 75 is switched to the drive mode, and the operation mode selection input unit 73 is switched to the travel mode, the second electromagnetic proportional valve 30-2 and the third electromagnetic proportional valve 30-3. Furnace current is supplied, and current is not supplied to the first electromagnetic proportional valve 30-1.
- the emergency mode selection input unit 75 when the emergency mode selection input unit 75 is switched to the non-drive mode, the first and second electromagnetic proportional valves 30-1 and 30-2 are controlled by the electronic control unit 20.
- the emergency mode selection input unit 75 When the emergency mode selection input unit 75 is switched to the non-drive mode, no current is supplied to the third electromagnetic proportional valve 30-3 regardless of the selection mode of the operation mode selection input unit 73. 2 and 5 to 7, the input terminal of the emergency mode selection input unit 75 is provided with a plurality of contacts, respectively, fourth connection lines L11 and L12 connected to the electronic control unit 20 or the power supply unit 50, respectively. And can be connected in parallel.
- the output terminal of the emergency mode selection input unit 75 may be connected through electromagnetic proportional valves 30-1 and 30-2 and fifth connection lines L21 and L22 respectively corresponding to the plurality of electromagnetic hydraulic pumps.
- the fourth connection lines L11 and L12 are connected to the output terminal of the operation mode selection input unit 73, and the input terminal of the operation mode selection input unit 73 is the power supply unit 50 and the sixth connection lines L31, L32 and L33. ) Can be connected.
- Each of the sixth connection lines L31, L32, and L33 may output currents having a magnitude corresponding to an operation mode (work or driving, etc.) selected by the driver 71-1, 71-2, and 71-3. It may be connected to the power supply unit 50 via).
- the emergency mode selection input unit 75 includes a first emergency mode switch 75-1, a second emergency mode switch 75-2, a third emergency mode switch 75-3, and And a fourth emergency mode switch 75-4.
- the emergency mode selection input unit 75 switches to the non-drive mode, all of the first to fourth emergency mode switches 75-1 to 75-4 are switched to the non-drive mode, and the emergency mode selection input unit 75
- the driving mode signal is input to the first to fourth emergency mode switches 75-1 to 75-4, all of them are switched to the driving mode.
- One terminal of the first emergency mode switch 75-1 is connected to one terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the first emergency mode switch 75-1 is an electronic control device ( 20) and an optional terminal of the operation mode select input 73.
- the other terminal of the first emergency mode switch 75-1 is connected to the electronic control unit 20, and the first emergency mode switch is
- the 75-1 is switched to the driving mode
- the other terminal of the first emergency mode switch 75-1 is connected to one terminal of the second operation mode selection switch 73-2 included in the operation mode selection input unit 73. Connected.
- One terminal of the second emergency mode switch 75-2 is connected to the other terminal of the first electromagnetic proportional valve 30-1, and the other terminal of the second emergency mode switch 75-2 is the electronic control unit 20. And one of the ground terminals.
- the second emergency mode switch 75-2 is switched to the non-driven mode
- the other terminal of the second emergency mode switch 75-2 is connected to the electronic controller 20, and the second emergency mode switch is When the 75-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 75-2 is connected to the ground terminal.
- One terminal of the third emergency mode switch 75-3 is connected to one terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the third emergency mode switch 75-3 is the electronic control unit 20. And an operation mode selection input unit 73.
- the third emergency mode switch 75-3 is switched to the non-drive mode, the other terminal of the third emergency mode switch 75-3 is connected to the electronic control unit 20, and the third emergency mode switch is When the 75-3 is switched to the driving mode, the other terminal of the third emergency mode switch 75-3 is connected to one terminal of the first operation mode selection switch 73-1 included in the operation mode selection input unit 73. Connected.
- One terminal of the fourth emergency mode switch 75-4 is connected to the other terminal of the second electromagnetic proportional valve 30-2, and the other terminal of the fourth emergency mode switch 75-4 is the electronic control unit 20. And one of the ground terminals.
- the fourth emergency mode switch 75-4 is switched to the non-drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the electronic control unit 20, and the fourth emergency mode switch is When 75-4 is switched to the drive mode, the other terminal of the fourth emergency mode switch 75-4 is connected to the ground terminal.
- the emergency mode selection input unit 75 may be a toggle switch that can be turned on and off.
- the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection lines L11 and L12 when in the on state, and is connected to the electronic control unit 20 when in the off state.
- the electronic control unit 20 when the electronic control unit 20 is in normal operation, the emergency mode selection input unit 75 is in an off state, and the electronic control unit 20 and the electromagnetic proportional valves 30 (30-1, 30-2) are connected to each other. The driving of the electronic controller 20 and the electromagnetic proportional valves 30 (30-1, 30-2) is controlled.
- the electronic control unit 20 When the emergency mode selection input unit 75 is turned on in the inoperable state in which the electronic control unit 20 does not operate normally, the electronic control unit 20 is bypassed and, according to the output of the operation mode selection input unit 73, the electronic proportionality. The drive of the valves 30; 30-1, 30-2 is controlled.
- the operation mode selection input unit 73 is connected to the plurality of registers 71-1, 71-2, and 71-3 through the sixth connection lines L31, L32, and L33.
- the plurality of resistors 71-1, 71-2, and 71-3 may have different resistance values. Therefore, even if the same voltage is applied to the plurality of resistors, different current values are output. Since the required currents are different from each other according to the operation modes, matching is made with the resistors meeting the required currents of the operation modes.
- the operation mode selection input unit 73 may be a toggle switch capable of selecting a driving mode or a working mode.
- the driving mode selection input unit 73 is in the driving mode state, the operation mode selection input unit 73 is connected through the sixth connection line L32 so as to be connected to a register, eg, 71-2, which matches the required current of the driving mode.
- the operation mode selection input unit 73 is in the working mode, it is connected through the sixth connection lines L31 and L33 so as to be selectively connected to registers 71-1 and 71-3 matching the required current of the working mode. do.
- FIG. 5 shows an example of emergency driving when two electrohydraulic pumps are used in a work mode and one electrohydraulic pump is used in a driving mode.
- the registers 71-1 and 71-3 corresponding to the working mode may have a resistor having the same resistance value so that the two electrohydraulic pumps discharge the working oil evenly.
- the register 71-2 corresponding to the driving mode uses only one electrohydraulic pump in the driving mode, the output of the electrohydraulic pump can be made larger than when the two electrohydraulic pumps are used. Accordingly, the register 71-2 corresponding to the driving mode may have a resistor having a lower resistance value than the other registers 71-1 and 71-3.
- the operation mode selection input unit 73 includes a first operation mode selection switch 73-1, a second operation mode selection switch 73-2, and a third operation mode selection switch 73-. 3) and a fourth operation mode selection switch 73-4.
- the mode of the construction machine is switched to the operation mode by the operation mode selection input unit 73
- all of the first to fourth operation mode selection switches 73-4 are switched to the operation mode
- the operation mode selection input unit 73 is When the mode is changed to the driving mode, all of the first to fourth operation mode selection switches 73-4 are converted to the driving mode.
- One terminal of the first operation mode selection switch 73-1 is connected to the emergency mode selection input unit 75, and the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1. And a second register 71-2.
- the first operation mode selection switch 73-1 is switched to the working mode, the other terminal of the first operation mode selection switch 73-1 is connected to the first register 71-1.
- the first operation mode selection switch 73-1 is switched to the travel mode, the other terminal of the first operation mode selection switch 73-1 is connected to the second register 71-2.
- one terminal of the first operation mode selection switch 73-1 may be connected to the other terminal of the third operation mode selection switch 73-3.
- One terminal of the second operation mode selection switch 73-2 is connected to the emergency mode selection input unit 75, and the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3. And an auxiliary mode relay 77.
- the second operation mode selection switch 73-2 is switched to the work mode, the other terminal of the second operation mode selection switch 73-2 is connected to the third register 71-3.
- the second operation mode selection switch 73-2 is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 is connected to the auxiliary mode relay 77.
- one terminal of the second operation mode selection switch 73-2 may be connected to the other terminal of the emergency mode selection input unit 75.
- One terminal of the third operation mode selection switch 73-3 is connected to one terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the third operation mode selection switch 73-3 is the electronic control unit. And selectively to either one of the 20 and the travel mode registers 78. For example, when the third operation mode selection switch 73-3 is switched to the work mode, the other terminal of the third operation mode selection switch 73-3 is connected to the electronic control unit 20, and the third operation mode. When the selection switch 73-3 is switched to the driving mode, the other terminal of the third operation mode selection switch 73-3 is connected to the driving mode register 78.
- One terminal of the fourth operation mode selection switch 73-4 is connected to the other terminal of the third electromagnetic proportional valve 30-3, and the other terminal of the fourth operation mode selection switch 73-4 is the electronic control unit. Selectively connected to either 20 or a ground terminal. For example, when the fourth operation mode selection switch 73-4 is switched to the work mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the electronic controller 20, and the fourth operation mode selection is performed. When the switch 73-4 is switched to the driving mode, the other terminal of the fourth operation mode selection switch 73-4 is connected to the ground terminal.
- the auxiliary mode relay 77 includes a coil 77-2, a diode 77-3 and a switch 77-1 connected in parallel with the coil 77-2.
- One terminal of the switch 77-1 is commonly connected to one terminal of the first register 71-1, the second register 71-2, and the third register 71-3, and the switch 77
- the other terminal of -1) is selectively connected to one of the travel mode register 78 and the dummy terminal 77-0.
- the operation mode selection input unit 73 is switched to the work mode
- the other terminal of the switch 77-1 is connected to the dummy terminal 77-0, and the operation mode selection input unit 73 enters the driving mode.
- the other terminal of the switch 77-1 When switched, the other terminal of the switch 77-1 is connected to the travel mode register 78.
- the other terminal of the second operation mode selection switch 73-2 when the second operation mode selection switch 73-2 described above is switched to the driving mode, the other terminal of the second operation mode selection switch 73-2 may be connected to the coil 77-2.
- One terminal of the coil 77-2 may be selectively connected to the other terminal of the second operation mode selection switch 73-2, and the other terminal of the coil 77-2 may be one side of the switch 77-1.
- the operation mode selection input unit 73 may select any one of the driving mode and the working mode, and is connected to a register for outputting a current value matching the selected mode.
- the operation mode selection input unit 73 transfers the current value of the connected resistor to the electromagnetic proportional valves 30 (30-1, 30-2) through the emergency mode selection input unit 75 through the fourth connection lines L11 and L12. do. At this time, if the emergency mode selection input unit 75 is in the on state, the current value transmitted from the operation mode selection input unit 73 is output to the electromagnetic proportional valves 30 (30-1, 30-2) and the emergency mode selection input unit When 75 is in the off state, the control current of the electromagnetic proportional valve 30 is received from the electronic control unit 20.
- the emergency operation drive selection input unit 70 including the operation mode selection input unit 73 and the emergency mode selection input unit 75 of the present specification, even when the equipment controller of the construction machine is inoperable, the traveling and working operation of the construction machine Make it possible to temporarily move the construction machine in an emergency situation.
- FIG. 6 illustrates a case in which the operation mode selection input unit 73 selects a driving state and the emergency mode selection input unit 75 is in an on state in the circuit diagram of FIG. 5, and FIG. 7 illustrates an operation mode selection in the circuit diagram of FIG. 5.
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. , L12).
- the operation mode selection input unit 73 selects a working state, is connected to the sixth connection lines L31 and L33, and converts current values of the registers 71-1 and 71-3 into the electromagnetic proportional valve 30; To 30-2).
- the emergency mode selection input unit 75 is turned on so that the connection between the electronic controller and the proportional valve is short-circuited, and the emergency mode selection input unit 75 is connected to the operation mode selection input unit 73 and the fourth connection line L11. Are connected along.
- the operation mode selection input unit 73 selects a driving state, is connected to the sixth connection line L32, and outputs a current value of the register 71-2 to the electromagnetic proportional valve 30;
- FIG. 8 is a block diagram illustrating a distress notification device 80 according to an embodiment of the present specification.
- the distress notification device 80 may include a control unit 81 connected to an alarm lamp 82 provided on the top side of a construction machine and an emergency start selection input unit to control on / off of the warning lamp 82.
- the controller 81 is connected in parallel between the emergency start selection input unit 60 and the start motor 10, and turns on the warning light when the emergency start selection input unit is turned on.
- the control unit 81 When the control unit 81 is operated by the emergency start selection input unit, the light emitted from the warning lamp 82 may blink. In this case, you can easily draw attention to those around you and easily notify them of the distress. In addition, it is possible to transmit a signal by modulating the blinking of the light.
- the pattern of emitting light is defined as ' ⁇ ⁇ ⁇ ' Kim) can be used to mean 'SOS' of Morse code. This flashing of light may be achieved by turning on / off the power supplied to the beacon 82.
- sound may be generated in conjunction with the flashing of the light of the beacon 82.
- the sound divergence pattern may be the same as the light divergence pattern to mean 'SOS' of the Morse code.
- warning light 82 to transmit the distress information in the emergency state of the present disclosure, it is possible to facilitate the positioning in the night situation.
- the location information acquisition unit 90 may acquire its own location information using, for example, a global positioning system (GPS).
- GPS global positioning system
- the control unit 81 acquires the location information through the external location information acquisition unit 90
- the light emitted from the warning lamp may be turned on to mean the location information.
- the distress structure may be lit to mean position information by modulating the blinking of light according to the Morse code.
- the location information may be longitude / latitude or address information.
- the controller 81 may be connected to the emergency drive selection input unit 70 instead of the emergency start selection input unit 60, or may be connected to both the emergency start selection input unit 60 and the emergency drive selection input unit 70. Can be. In this case, the controller 81 may turn on the beacon even when the emergency drive is selected.
- the communication terminal 83 is connected in parallel between the emergency start select input unit 60 and / or the emergency drive select input unit 70 and the start motor 10, and when the emergency start select input unit is turned on, the communication terminal 83 is connected to the communication terminal 83. Deliver a signal for distress notification to the outside.
- the communication terminal 83 is a data transmission / reception apparatus provided in the construction machine, and transmits and receives various information of the construction machine with a TMS server (not shown). This various information includes the position information of the construction machine (20).
- the communication terminal 83 may include a short range communication module such as a Bluetooth or Wi-Fi communication module.
- a short-range communication module such as a Bluetooth or Wi-Fi communication module.
- the short-range communication is connected to the communication terminal of the surrounding construction machine may transmit distress notification and location information.
- the communication terminal 83 may include a mobile communication module such as CDMA, GSM, WCDMA, and the like, and a satellite communication module communicating with a communication satellite.
- a mobile communication module such as CDMA, GSM, WCDMA, and the like
- distress notification and location information may be transmitted to a TMS server (not shown) and another mobile communication terminal.
- the TMS server transmits and receives information with a pre-registered construction machine periodically or aperiodically, and stores and manages information of the construction machine.
- the communication terminal 83 when the emergency start selection input unit 60 is turned on, notifies the server or a predetermined terminal of an abnormal situation such as an inoperability of the electronic control unit 20.
- the preset terminal may be an owner of the construction machine or a terminal of a worker working in the same workplace.
- the communication terminal 83 may transmit the location information acquired by the location information acquisition unit 90 together with the server or a predetermined terminal when the operation is notified.
- the communication terminal 83 may transmit identification information of the construction machine together with the inoperable notification, so that the server can identify the terminal informing the inoperable operation.
- FIG. 9 is a diagram exemplarily illustrating selection input units according to an embodiment of the present specification.
- the emergency start selection input unit 60, the operation mode selection input unit 73, and the emergency mode selection input unit 75 may be provided in the form of a toggle switch that can be turned on and off by one-touch operation of the driver.
- the operation mode selection input unit 73 selects work or travel, and the emergency drive mode selection input unit 75 bypasses the electronic control unit 20.
- These selection input units may be provided separately from the conventional input unit on the dashboard screen or the control box.
- FIG. 10 is a flowchart illustrating a driving method of an excavator according to an embodiment of the present invention.
- the operator starts the emergency start from the emergency start selection input unit 60 to turn on the mode switch in the emergency start selection input unit (S2).
- distress information may be displayed (S2). For example, light may be generated from a warning lamp. This light may flash periodically.
- the operator switches to the emergency work mode by the emergency work drive selection input unit 70 and switches the operation mode selection input unit 73 to the work mode or the driving mode. (S4). Then, a current preset by the resistor may be supplied to the first electromagnetic proportional valve 30-1, the second electromagnetic proportional valve 30-2, and the third electromagnetic proportional valve 30-3 (S5). Accordingly, the work machine and the traveling motor of the excavator can operate normally by the operation of the joystick and the pedal. In this case, the excavator located in the rough land can escape to a safe place (S6).
- the structure and method according to an embodiment of the present invention can be applied to a variety of construction machinery such as wheel loaders and trucks in addition to the above-described excavator.
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Abstract
Description
Claims (17)
- 엔진을 구동시키기 위한 스타트 모터;시동 신호에 기초하여 상기 스타트 모터에 대한 구동 신호를 출력하고, 복수개의 작업기 조작신호에 기초하여 전자 유압펌프에 대한 제어 신호를 출력하는 전자제어부; 및상기 전자제어부를 바이패스시켜 스타트 모터에 전원을 연결하는 비상시동 선택입력부;를 포함하는 건설기계의 비상 구동 시스템.
- 제1항에 있어서,복수개의 작업기를 동작하기 위한 전자 유압펌프;상기 전자 유압펌프를 제어하기 위한 전자비례밸브; 및상기 전자제어부를 바이패스시켜 상기 전자비례밸브에 미리 설정된 전기 신호를 출력하는 비상작업구동 선택입력부;를 더 포함하는 건설기계의 비상 구동 시스템.
- 제2항에 있어서,상기 비상작업구동 선택입력부는,서로 다른 전기 신호를 출력하는 복수개의 레지스터;작업자에 의해 조작에 따라 상기 복수개의 레지스터 중 어느 하나를 선택적으로 연결시키는 동작모드 선택입력부;작업자에 의해 조작에 따라 상기 전자제어부를 바이패스시켜 상기 동작모드 선택입력부에 의해 연결된 레지스터로부터 출력되는 전기 신호를 상기 전자비례밸브에 출력하는 비상모드 선택입력부를 더 포함하는 건설기계의 비상 구동 시스템.
- 제1항에 있어서,건설기계의 탑측에 마련된 경광등; 및상기 비상시동 선택입력부가 온되면, 상기 경광등에서 발산되는 빛이 조난구조를 의미하도록 점등시키는 제어부를 더 포함하는 건설기계의 비상 구동 시스템.
- 제4항에 있어서,건설기계의 위치정보를 획득하는 위치 정보 획득부를 더 포함하고,상기 제어부는 상기 비상시동 선택입력부가 온되면, 상기 경광등에서 발산되는 빛이 상기 위치 정보 획득부로부터 입력되는 위치정보를 의미하도록 점등시키는 것을 특징으로 하는 건설기계의 비상 구동 시스템.
- 제4항에 있어서,상기 조난구조는 모스부호의 S.O.S 인 것을 특징으로 하는 건설기계의 비상 구동 시스템.
- 제2항에 있어서,건설기계의 위치정보를 획득하는 위치 정보 획득부를 더 포함하고,상기 제어부는 상기 비상시동 선택입력부 또는 상기 비상작업구동 선택입력부가 온되면, 상기 경광등에서 발산되는 빛이 상기 위치 정보 획득부로부터 입력되는 위치정보를 의미하도록 점등시키는 것을 특징으로 하는 건설기계의 비상 구동 시스템.
- 제1항에 있어서,건설기계의 위치정보를 획득하는 위치 정보 획득부; 및관제서버 및 관리자 단말 중 어느 하나 이상과 정보를 송수신하는 통신단말을 더 포함하고,상기 통신단말은 상기 비상시동 선택입력부가 온되면, 관제서버 및 관리자단말 중 어느 하나 이상에 이상상황통지 및 위치정보 중 적어도 어느 하나를 전송하는 것을 특징으로 하는 건설기계의 비상 구동 시스템.
- 제1항에 있어서,전원부와 상기 스타트 모터를 연결하는 제2 연결라인에 설치되는 제1 릴레이;상기 제1 릴레이의 접점단자와 상기 제2 연결라인을 통해 연결된 신호단자를 가지며, 상기 스타트 모터를 연결된 접점단자가 상기 제2 연결라인과 병렬로 연결되는 제2 릴레이; 및상기 제1 릴레이와 상기 제2 릴레이에 사이의 상기 제2 연결라인에서 분기되어 상기 전원부와 연결되는 제3 연결라인;을 더 포함하며,상기 전자제어부는, 상기 전원부로부터 제1 연결라인을 통해 전류를 공급받아 상기 제1 릴레이의 신호단자에 전류를 인가하여 상기 제1 릴레이의 접점단자가 연결되면 상기 제2 릴레이의 신호단자에 상기 전원부의 전원이 인가됨으로써 상기 제2 릴레이의 접점단자를 통해 상기 전원부의 전류를 상기 스타트 모터에 인가할 수 있고,상기 비상시동 선택입력부는, 상기 제3 연결라인을 선택적으로 단락 가능하게 설치되는 스위치이며, 상기 제3 연결라인의 연결시 상기 제2 릴레이의 신호단자에는 상기 비상시동 선택입력부로부터 인가되는 상기 전원부의 전원이 인가되는 것을 특징으로 하는 건설기계의 비상 구동 시스템.
- 제1항에 있어서,전자제어부에 연결된 비상모드 선택입력부;상기 비상모드 선택입력부에 연결된 제 1 및 제 2 전자비례밸브;상기 전자제어부에 연결된 동작모드 선택입력부;상기 동작모드 선택 입력부에 연결된 제 3 전자비례밸브; 및상기 동작모드 선택 입력부에 연결된 복수개의 레지스터 및 보조 모드 릴레이를 포함하는 건설기계의 비상 구동 시스템.
- 제 10 항에 있어서,상기 비상모드 선택입력부에 구동 모드가 입력되고, 상기 동작모드 선택 입력부에 작업 모드가 입력되면, 제 1 전자비례밸브 및 제 2 전자비례밸브로 제 1 레지스터 및 제 2 레지스터에 따라 미리 설정된 전류가 공급되는 건설기계의 비상 구동 시스템.
- 제 10 항에 있어서,상기 비상모드 선택입력부가 구동 모드로 전환되고, 상기 동작모드 선택 입력부에 의해 주행 모드가 입력되면, 상기 제 2 전자비례밸브 및 제 3 전자비례밸브로 제 1 레지스터 및 제 2 레지스터에 따라 미리 설정된 전류가 공급되는 건설기계의 비상 구동 시스템.
- 제 10 항에 있어서,상기 비상모드 선택입력부는,상기 제 1 전자비례밸브의 일측 단자에 연결되며, 상기 전자제어부 및 동작모드 선택 입력부 중 어느 하나에 선택적으로 연결되는 제 1 비상모드 스위치;상기 제 1 전자비례밸브의 타측 단자에 연결되며, 상기 전자제어부 및 접지 단자 중 어느 하나에 선택적으로 연결되는 제 2 비상모드 스위치;상기 제 2 전자비례밸브의 일측 단자에 연결되며, 상기 전자제어부 및 동작모드 선택입력부 중 어느 하나에 선택적으로 연결되는 제 3 비상모드 스위치; 및상기 제 2 전자비례밸브의 타측 단자에 연결되며, 상기 전자제어부 및 접지 단자 중 어느 하나에 선택적으로 연결되는 제 4 비상모드 스위치를 포함하는 건설기계의 비상 구동 시스템.
- 제 13 항에 있어서,상기 동작모드 선택 스위치는,상기 비상모드 선택입력부에 연결되며, 상기 제 1 레지스터 및 상기 제 3 레지스터 중 어느 하나에 선택적으로 연결되는 제 1 동작모드 선택 스위치;상기 비상모드 선택입력부에 연결되며, 상기 제 2 레지스터 및 상기 보조 모드 릴레이 중 어느 하나에 선택적으로 연결되는 제 2 동작모드 선택 스위치;상기 제3 전자비례밸브의 일측 단자에 연결되며, 상기 전자제어부 및 상기 주행 모드 레지스터 중 어느 하나에 선택적으로 연결되는 제 3 동작모드 선택 스위치; 및상기 제3 전자비례밸브의 타측 단자에 연결되며, 상기 전자제어부 및 접지 단자 중 어느 하나에 선택적으로 연결되는 제 4 동작모드 선택 스위치를 포함하는 건설기계의 비상 구동 시스템.
- 제 10 항에 있어서,스타트 모터;상기 스타트 모터와 배터리 사이에 연결된 제2 릴레이;상기 전자제어부에 의해 제어되며, 배터리와 상기 제2 릴레이 사이에 연결된 제1 릴레이; 및,상기 배터리와 상기 제2 릴레이의 제어 단자 사이에 접속된 비상 시동 선택 입력부를 포함하는 건설기계의 비상 구동 시스템.
- 제 15 항에 있어서,상기 비상 시동 선택 입력부는 상기 제2 릴레이의 제어 단자에 직접 연결된 건설기계의 비상 구동 시스템.
- 제 15 항에 있어서,상기 비상 스타트 모드 스위치의 턴-온시 동작하는 경광등을 더 포함하는 건설기계의 비상 구동 시스템.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0516850U (ja) * | 1991-08-26 | 1993-03-02 | 住友建機株式会社 | 建設機械の操作装置 |
JPH07269448A (ja) * | 1994-03-31 | 1995-10-17 | Kubota Corp | 自動始動式の非常用エンジン |
KR100854668B1 (ko) * | 2007-08-09 | 2008-08-28 | 삼성중공업 주식회사 | 인터록킹 시스템이 구비된 스타터 장치 |
KR20100134332A (ko) * | 2009-06-15 | 2010-12-23 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설장비의 조작레버 잠금장치 |
JP2013185501A (ja) * | 2012-03-08 | 2013-09-19 | Sumitomo (Shi) Construction Machinery Co Ltd | 始動制御システム |
Family Cites Families (2)
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0516850U (ja) * | 1991-08-26 | 1993-03-02 | 住友建機株式会社 | 建設機械の操作装置 |
JPH07269448A (ja) * | 1994-03-31 | 1995-10-17 | Kubota Corp | 自動始動式の非常用エンジン |
KR100854668B1 (ko) * | 2007-08-09 | 2008-08-28 | 삼성중공업 주식회사 | 인터록킹 시스템이 구비된 스타터 장치 |
KR20100134332A (ko) * | 2009-06-15 | 2010-12-23 | 볼보 컨스트럭션 이큅먼트 에이비 | 건설장비의 조작레버 잠금장치 |
JP2013185501A (ja) * | 2012-03-08 | 2013-09-19 | Sumitomo (Shi) Construction Machinery Co Ltd | 始動制御システム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112282948A (zh) * | 2020-10-29 | 2021-01-29 | 徐州徐工挖掘机械有限公司 | 一种应急起动发动机的控制系统和方法 |
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