KR100788163B1 - Rpm control and outrigger control system for electronic engine of crane vehicle - Google Patents

Abstract

A system for controlling the RPM of an engine and an outrigger of a crane vehicle is provided to use a remote control acceleration signal selecting function and an accelerator provided in an electronic engine by remotely selecting an acceleration signal to control the RPM of the electronic engine. In a system for controlling the RPM of an engine and an outrigger of a crane vehicle, an outrigger controller(153) analyzes data transferred from a multi-data transmitter(77) and determines whether a PTO enable signal(75) is active. Drive signals of solenoids(85,86,87,88) of an outrigger operating cylinder are generated through output ports corresponding to input information of a cabin outrigger control panel(120). The control of the RPM of an engine is performed by an accelerator pedal installed in the cabin. An outrigger unit is operated by determining whether a multi-stage boom is positioned so that the cabin outrigger work is promptly performed, a conventional crane work is performed, and overturn of equipment can be prevented during the outrigger work.

Description

RPM Control and Outrigger Control System for Electronic Engine of Crane Vehicle}

1 is a functional diagram of an outrigger control panel of a hydraulic crane vehicle according to the prior art

2 is a functional block diagram of an engine RPM control and outrigger control system of a rough terrain crane vehicle according to the present invention.

Figure 2 (a) is a control flow diagram of the engine RPM control and outrigger control system of the rough terrain crane vehicle according to the invention in Figure 2;

Figure 2 (b) is a control panel of the outrigger controller in Figure 2, using the accelerator according to the present invention.

Figure 3 is a front view of a rough terrain crane vehicle showing an embodiment of the engine RPM control and outrigger control system according to the present invention.

Figure 4 is a side view of a rough terrain crane vehicle showing an embodiment of the engine RPM control and outrigger control system according to the present invention.

The present invention relates to an engine revolution control per minute (RPM) control and outrigger control system in a rough terrain crane or a special purpose vehicle.

In detail, in the conventional crane, the engine RPM control uses an accelerator pedal, which is an accelerator device in the lower cabin and the upper cabin, and uses a push-pull cable by connecting a dual link structure to the engine governor lever to accelerate the engine. By changing the angle of the engine governor lever by the amount of movement of the cable from the lower part or the upper part, and by controlling the governor lever by pulling it at an angle using an electric solenoid, or stepping to precisely control the engine RPM. A rotating lever was attached to the shaft of the motor, and a link structure was used to connect the engine governor lever to the rotating lever, thereby enabling linear proportional control of the engine speed.

In addition, in the conventional crane, the outrigger control device simply uses a mechanical lever attached to a hydraulic ON / OFF valve block installed on the left and right sides of the vehicle to control the horizontal beam or the vertical jack of the outrigger. The expansion and contraction of the spool of cylinder control valve was operated mechanically.

The conventional outrigger control system has a work changeover mode, that is, a mode in which power of the engine is connected to drive a pump for a work device when switching to PTO (POWER TAKE OFF) mode. At this time, the engine RPM is limited, or the outrigger control device is operated while maintaining a certain number of revolutions.

Conventional embodiments have been devised to operate the horizontal beam or the vertical jack of the outrigger by operating the toggle switch installed by the position of the outrigger control solenoid electrically by adopting the electrical control panel shown in FIG.

The outrigger control panel of FIG. 1 adopts an entirely electrical method so that the five switches 1 to 5 on the left control four horizontal beams when the power switch 11 is turned on. The switch 6 ~ 10 controls the four vertical jacks so that the switch can be arranged by the position of the work equipment.

More specifically, when the switch 1 is operated left or right to expand (OUT) or contract (IN) the horizontal beam 155 on the front right side, a driving signal is directly transmitted to the solenoid of the corresponding outrigger cylinder. to be.

Then, when the all-beam switch (OVERALL, 5) is operated to the left and right sides, all four horizontal beams are designed to expand (OUT) or contract (IN) at the same time. It is designed to operate the outrigger unit by position using the remaining operating switches.

The same concept is designed to land the jacks on the ground by position using the five vertical jack switches on the right.

The control system has a disadvantage in that the mechanical system is complicated and the weight of the vehicle is increased, and the engine RPM works in a constant state, or in a limited engine RPM control situation, the work efficiency decreases or the work time is long. to be.

The present invention has been devised as shown in Figure 2 by applying an electronic engine to solve the problems as described above, the present invention is a vehicle due to the operational characteristics of the rough terrain crane and its own characteristics of the electronic engine in a crane vehicle Acceleration pedal 152 for engine RPM control is installed in a single cabin 150 that performs driving and crane work, and an accelerator (acceleration dial) in the control panel 122 of the outrigger controller 153 attached to the right side of the vehicle body. (128) is applied to the rough terrain crane equipped with an electronic engine, special purpose vehicles, etc., an electronic accelerator (acceleration dial, separately applied to control the RPM of the electronic engine according to the operation mode (driving, crane, outrigger) 128) by using the remote acceleration signal selection function and the accelerator pedal 152 to select the signal of the variable) and to control the engine RPM variably and to properly operate the outrigger Kevin brother relates to a trigger control panel 120 and the vehicle body outrigger controller 153 of the rough terrain crane vehicle control.

Peripheral devices for controlling the power transmission of the electronic engine when switching to the PTO control mode during normal crane operation, the accelerator pedal 152 signal mounted on a single cabin 150 and the outrigger controller installed on the lower right side of the vehicle body. Remote acceleration signal selection signal 84 and dual acceleration that inputs over the electronic engine ECU to recognize the panel's accelerator dial signal as the RPM control signal of the electronic engine ECU. The device (acceleration pedal and acceleration dial) is used to control the horizontal beam of the outrigger and the moving distance and speed of the vertical jack, output the control valve drive signal of the outrigger operation cylinder, and use the output cylinder control valve logic signal. Analyzes the outrigger operation status, and transfers the rough terrain crane vehicle with the boom interlock function and the outrigger safety control function for the operation mode. It is conceived to develop an engine RPM control and the outrigger control system.

Rough terrain crane vehicle is a self-propelled vehicle body 177 consisting of a large wheel for rough terrain driving, swing bearing device 178 mounted on the self-propelled vehicle body to support the rotation, the main hook 179 and hoist drum 180 for the lifting operation , The turntable 182 is connected to the multi-stage boom 181 for the aerial work to support the ups and downs, expansion and rotation of the upper structure and mounted on the turntable to handle the driving and crane (lifting, height) work of the vehicle The cabin outrigger control panel 120 is installed inside the cabin (cabin 150) to allow outrigger installation and dismantling work in the cabin, and the outrigger controller 153 is installed on the lower body to install the outrigger from the bottom. And configured to expedite the demolition work.

Outrigger (Outrigger, Body Support, 157,160) is operated by hydraulic cylinder with expansion and contraction function and installed in 'H' type on both front and rear part of the body and safety check valve to fix the outrigger in case of hydraulic system error. This device is installed.

When the vertical jack is in contact with the ground, the horizontal system is installed so that the horizontal (front, rear, left, right) state can be easily checked, and the scaffold should be hinged (universal, 176) type so that the level can be maintained even at an inclined place.

An embodiment will be described using the functional block diagrams, control flow diagrams, panel functional diagrams, and FIG. 3 of FIGS. 2, 2 (a) and 2 (b).

The operator turns on the engine start 100 in the Kevin 150 and uses the axel pedal 152 of the Kevin 150 to control the RPM of the engine to accelerate the vehicle when driving in the driving mode 101. When the vehicle is parked, the operator switches the PTO switch 162 installed on the instrument panel of the Kevin together with the clutch pedal (not shown) to be turned on to switch to the PTO mode (work mode 104). . In the PTO mode, the Kevin controller 151 installed in the cabin 150 receives switch information of the cabin outrigger control panel 120 and is installed at a lower portion via a rotary brush 82 through a serial communication 79 method. The data is transmitted to a multiplex data transmitter unit 77.

The Kevin controller 151 collects various input signals of the instrument panel and other peripheral control devices in the upper cabin 150 to reduce the number of channels of the limited rotary brush 82, and then processes the necessary information into the lower multi data transmitter. The multi data transmitter 77 transmits or supplies data or signals required by the lower part to various control devices below.

In addition, the PTO enable (75) signal generated by the automatic transmission is input to the right outrigger controller 153 of the vehicle body, and the switch information of the outrigger control panel 120 transmitted from the upper cabin controller 151 and The boom interlock 78 signal is received by the lower multi data transmitter 77 and transmitted to the right outrigger controller 153 through another serial communication 80 so that the outrigger can be installed and dismantled even in the upper cabin 150. There is a characteristic to make.

In the engine start 100 and the PTO mode 104, the electronic engine is driven at a reference idle speed by the Kevin Axel pedal 152.

Since the axel switch 125 of the right outrigger controller panel 122 is OFF, the outrigger cabin mode 106 is entered.

In the outrigger Kevin mode 106, the LED lamp 121 of the Kevin outrigger control panel 120 is turned on.

In Kevin mode 106, engine RPM control 108 and outrigger operation 110 are designed to be performed at Kevin outrigger control panel 120.

The outrigger installation work 110 may be performed in a cabin (single cabin 150), or an on tire crane work 111 may be performed immediately.

In the Kevin mode 106, the function switch of the Kevin outrigger control panel 120 is activated, and the input information of the control panel is passed through the multi data transmitter 77 through the serial communication line 79, and the lower right outer The LED lamp 121 transmitted to the trigger controller 153 and mounted on the outrigger control panel 120 of the Kevin 150 repeatedly blinks at a predetermined cycle when an error occurs in the communication.

The lower right outrigger controller 153 analyzes the data transmitted from the multi-data transmitter 77, determines whether the PTO enable 75 signal generated from the automatic transmission is activated, and controls Through the output port corresponding to the input information of the panel 120 generates a solenoid (85 ~ 89) drive signal of the outrigger operation cylinder.

The engine RPM control 108 is performed by the accelerator pedal 152 installed in the cabin, so that the cabin outrigger operation 110 can be performed quickly and the general crane operation 111 can be performed. The outrigger device is operated by judging whether the multistage boom 181 is seated on the boom rest to prevent the equipment overturning during the outrigger operation.Once the multistage boom is operated, the outrigger operates even if the outrigger operation toggle switch is operated. The control logic for the boom lock is implemented programmatically in the right outrigger controller 153 using the boom interlock signal 78 so that the automatic interlock function cannot be achieved.

In addition, the boom interlock signal 78 may receive a signal in a data format through the multi data transmitter 77.

In addition, when the axel switch 125 of the right outrigger controller 153 is turned on from the lower side, the LED lamp 127 of the control panel 122 is turned on, and the PTO enable signal 75 is detected to detect the outrigger RH-mode ( 109). When the outrigger RH-mode 109 is switched, the right outrigger controller 153 internally generates a remote acceleration signal selection signal 84, and also controls the accelerator dial 128 of the right outrigger control panel 122. Outputs the signal to the electronic engine 81 as the engine RPM control signal 83, and the engine RPM control signal is transmitted from the accelerator pedal 152 to the engine RPM control signal by referring to the remote acceleration signal selection signal 84 on the electronic engine 81 side. The recognition is changed to 83, and the acceleration and deceleration is performed to the engine speed setting step.

Since the engine speed can be accelerated and decelerated, the outrigger installation and dismantling operation 114 can be performed at the bottom, and when the installation is completed, the axel switch 125 is turned off, and the engine RPM control mode is returned to Kevin's axel pedal 152 again. Switched to perform the normal crane operation 111, immediately perform the outrigger demolition operation 110 in the Kevin 150, and turn off the PTO switch 162 of Kevin to switch to the driving mode 101 of the vehicle It becomes the state which can run.

The outrigger is designed to operate four outriggers simultaneously with one toggle switch (located at the center of the panel, 132) and to operate individually with the respective toggle switch (130, 129, 124 and 123).

For individual operation, first set the extension / retraction selection toggle switch 126 in the UP direction, that is, select the outrigger's extension, and select the horizontal beam / vertical jack selection toggle switch 131 in the UP direction (horizontal beam selection). The horizontal beam of the front left outrigger (158 in FIG. 3) expands at an appropriate speed while the front left operation toggle switch 124 is kept ON.

At this time, by moving the position of the accelerator dial 128 to an appropriate step (10 steps on the basis of RPM) or adjusting the accelerator dial 128 when the operation toggle switch 124 is in operation, the engine RPM (rotation speed) is appropriate. The flow rate of the hydraulic pump is discharged in accordance with the increase in the number of revolutions, so that the operating speed of the hydraulic cylinder of the outrigger is increased.

When the horizontal beam 158 of the front left outrigger is completed, selecting the selector switch 131 in the DOWN direction (vertical jack selection) and then operating the operation toggle switch 124 again, the front left outrigger vertical jack 159 This extends to the ground.

The RPM of the engine follows the set RPM level of the accelerator dial (128) only when the operation toggle switches (5) are on, and the engine is idled at the first stage RPM of the accelerator dial (128) in the OFF state. It was made to drive at the rotational speed.

In addition, the outrigger operation is performed in the same manner as above using the rear left side operation toggle switch 123, and the outrigger right side operation is performed using the front right side operation toggle switch 130 and the rear right side operation toggle switch 129. do.

The outrigger is installed in the above operation sequence, and the last vertical jack installation of the installation work is performed by first setting the extension / retraction selection toggle switch 126 in the UP direction and the horizontal beam / vertical jack selection toggle switch 131 in the DOWN direction. When the operation toggle switch 129 is operated by setting it to the (vertical jack selection) direction, the solenoid (jack valve of 88 double valves) and the expansion / contraction solenoid (extension valve 89 of double valves) of a jack operation cylinder are operated simultaneously. The jack on the right rear vertical jack is expanded according to the set engine RPM (set speed).

Conversely, when dismantling the extended outrigger system, the four outriggers are dismantled by shrinking in the reverse order of the expansion operation.

When the outrigger device is dismantled, the outrigger safety control function is implemented programmatically in the right outrigger controller 153 so as to remember the work priority logic so that the contraction work of the vertical jack can proceed first.

There is also a simultaneous toggle switch (Overall S / W, 132) to quickly install / dismantle four outriggers simultaneously, depending on the surrounding conditions. In order to quickly dismantle the four outrigger devices installed above at the same time, first set the expansion / contraction selection toggle switch 126 in the DOWN direction (shrink selection), and set the horizontal beam / vertical jack selection toggle switch 131 in the DOWN direction ( Vertical jack selection) and operating the simultaneous operation toggle switch 132 in the UP direction with the accelerator dial 128 set to an appropriate step according to the working situation. Rising to the corresponding RPM, the solenoids of the four outrigger vertical jack cylinders (double valves, 85,86,87,88) and the expansion / shrink solenoids (reduction valves 89 of the double valves) are operated simultaneously. Contractions.

If the extension / retraction selection toggle switch 126 is set in the DOWN direction, the horizontal beam / vertical jack selection toggle switch 131 is set in the UP direction, and the simultaneous operation toggle switch 132 is operated in the UP direction. At the set engine RPM, the horizontal beams of the four outriggers are completely dismantled by contracting simultaneously.

For convenience, the right outrigger control panel 122 is described, but when the axel switch 125 is turned off, the switch is automatically switched to the Kevin mode 106 and the Kevin LED lamp 121 is turned on, and the Kevin outrigger control panel 120 is activated. The engine RPM control 108 and Kevin outrigger operation 110 is then possible.

When the crane work 111 is finished, the outrigger demolition work 110 is completed in the interior of the cabin 150 without the engine stop 113, and the PTO switch (PTO S / W, 162) is turned off. ), The crane vehicle can move.

As described above, the present application specification may have a plurality of exemplary embodiments according to the present invention with reference to the accompanying drawings as an engine RPM control and outrigger control system of a rough terrain crane vehicle, and the above-described embodiment may be applied to the rough terrain crane. Although the embodiment has been described, the scope of the present invention is not limited to the above, and may be equally applicable to a special purpose vehicle equipped with a single cabin (Cabin) on the top, and the accelerator is not an acceleration dial or an acceleration lever. It is not deemed to depart from the basic idea of the present invention only by changing the external function in the form of the acceleration handle.

In addition, it should be understood that modifications, changes, additions to the present invention also fall within the scope of the present invention without departing from the basic spirit of the invention described in the claims.

The engine RPM control and outrigger control system of the rough terrain crane vehicle designed above can be applied to all vehicles of special purpose equipped with a self-propelled body and equipped with a single cabin on the upper part of the rough terrain crane vehicle. By installing the trigger controller, it is effective to provide more advanced functions and performances through various workability, efficient work, convenience, and reduction of working time.

With the development of electronic technology, there is a technical effect to provide a control structure and a control system for implementing a new engine RPM control device and a new outrigger control device for electronic engine application.

Claims (3)

The crane vehicle is a self-propelled body 177 consisting of a large wheel for rough terrain, a swing bearing device 178 mounted on the self-propelled body and supporting rotation, a main hook 179 and a one-wheeled drum 180 for lifting work, and a height of height. The turntable 182 is connected to the multi-stage boom 181 for the work to support the ups and downs, expansion and rotation of the upper structure, and the single cabin 150 mounted on the turn table to perform the traveling and crane (lift) operation of the vehicle. Install the outrigger control panel (120) in the interior of the outrigger installation and dismantling work in a single cabin 150, the right outrigger controller 153 in the lower body to install and dismantle the outrigger from the bottom A crane system configured to perform work quickly, the engine control 100 is turned on in a single cabin 150, and the RPM control 102 of the engine is driven to accelerate the vehicle when driving in the driving mode 101. When the operator uses the axel pedal 152 of 150 to turn on the PTO switch 162 installed on the instrument panel of Kevin while the vehicle is parked, the PTO mode is the work mode. Switched to (104), the cabin controller 151 installed in the cabin 150 in the PTO mode receives the switch information of the cabin outrigger control panel 120 receives the rotary brush 82 through the serial communication (79) method The PTO enable 75 signal generated by the automatic transmission is inputted to the right outrigger controller 153 of the vehicle body and transmitted by the upper Kevin controller 151. The switch information of the cabin outrigger control panel 120 and the boom interlock 78 signal are received by the lower multi data transmitter 77 and transmitted to the right outrigger controller 153 via another serial communication 80, and the upper single In Kevin 150 The outrigger installation and dismantling can be performed. In the driving mode 101 and the PTO mode 104, the electronic engine is driven at a reference idle speed by the Kevin Axel pedal 152. The right outrigger control panel 122 When the axel switch 125 of the OFF) is OFF, the outrigger Kevin mode 106 is turned on.In the outrigger Kevin mode 106, the LED lamp 121 of the Kevin outrigger control panel 120 is turned on. In the mode 106, the engine RPM control 108 and the outrigger operation 110 are performed by the Kevin outrigger control panel 120, and the single cabin 150 has a tire that is directly on (without the outrigger installation operation 110). ON TIRE) to perform the crane operation 111, or to perform the normal crane operation 111 after the outrigger installation operation 110, the function of the Kevin outrigger control panel 120 in the outrigger Kevin mode 106 Input information of switch is Kevin controller ( 120 is transmitted to the multi data transmitter 77 by serial communication 79, and the lower multi data transmitter 77 is transmitted to the right outrigger controller 153 through a separate serial communication line 80. In case of a communication error, the LED lamp 121 mounted on the Kevin outrigger control panel 120 of the single cabin 150 repeatedly blinks at a predetermined period, and the lower right outrigger controller 153 is a multi data transmitter. Analyzes the data transmitted from (77), and also determines whether the PTO enable 75 signal is active, and through the output port corresponding to the input information of the Kevin outrigger control panel (120) The solenoid (85 to 89) drive signal of the outrigger operation cylinder is generated, and the engine RPM control 108 is performed by the axel pedal 152 installed in the cabin, and quickly performs the cabin outrigger operation 110 and To proceed with the crane work (111) The outrigger device is operated by judging whether the multistage boom 181 is seated on the boom rest to prevent the equipment overturning during the outrigger operation, and once the multistage boom is operated, the outrigger operation toggle switch can be operated. Programmatically implements the control logic for the boom lock in the right outrigger controller 153 using the auto interlock function so that the outrigger cannot be operated, and the boom interlock signal 78 is multi- Engine RPM control and outrigger control system of a crane vehicle having a feature that can receive a signal in the form of data through the data transmitter (77). 2. The LED lamp 127 of the control panel 122 is turned on when the axel switch 125 of the right outrigger controller 153 is turned on from the bottom, and the PTO enable signal 75 is detected. When the trigger RH mode 109 is switched, the outrigger RH mode 109 internally the right outrigger controller 153 generates a remote acceleration signal selection signal 84, and also the right outrigger control panel The signal of the accelerator dial 128 in 122 is output to the electronic engine 81 as the engine RPM control signal 83, and the engine RPM control signal is referred to the remote acceleration signal selection signal 84 on the electronic engine 81 side. Change the recognition from the accelerator pedal 152 to the engine RPM control signal 83, and performs the acceleration and deceleration in the setting step of the engine speed, and the acceleration and deceleration of the engine speed is possible, so that the outrigger installation and removal work from the lower part 114 Is possible, and when the installation is completed, turn off the accelerator switch 125. And, the engine RPM control 108 is switched to the single cabin axel pedal 152, performs a conventional crane work 111, and immediately performs the outrigger demolition work 110 in a single cabin 150, Engine RPM control and outrigger control system of a crane vehicle having a feature that can be driven by switching to the driving mode 101 of the vehicle when the PTO switch 162 of the single cabin is OFF. The method according to claim 1 or 2, wherein the function or arrangement of the control panel 122 of the Kevin outrigger control panel 120 and the lower right outrigger controller 153 adopts the same form, and in the center of the panel The symbol of the vehicle, which symbolizes the meaning of the function of the switch, can be used to recognize the position of the outrigger device that is activated when the function activated toggle switch is activated.The outrigger has one toggle switch (located at the center of the panel, 132) Four outriggers can be operated at the same time, and individual operation can be performed by operating each operation toggle switch (123, 124, 129, 130), and the individual operation concept is to first move the expansion / retraction selection toggle switch 126 in the UP direction (expansion selection). Switch to, the horizontal beam / vertical jack selection toggle switch 131 in the UP direction (horizontal beam selection), and the front left side operation toggle switch 124 remains in the UP direction ON. The horizontal beam 158 of the front left outrigger extends at an appropriate speed and the position of the axel dial 128 is set at an appropriate step (10 steps in RPM), or the operation toggle switch 124 is in operation. When adjusting the accelerator pedal 152, the RPM (rpm) of the engine is properly adjusted, and the flow rate of the hydraulic pump is discharged in accordance with the increase of the engine speed, so that the operation speed of the hydraulic cylinder of the outrigger is increased. When the horizontal beam 158 of the front left outrigger is completed, selecting the selector switch 131 in the DOWN direction (vertical jack selection) and then operating the operation toggle switch 124 again, the front left outrigger vertical jack (159) extends to the ground, when dismantling the outrigger device, remember the work order logic so that the contraction work of the vertical jack can proceed first, and the outrigger safety to perform safe work Crane vehicle control function of the engine RPM control and the outrigger control system comprising: a.

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