CN102828838B - Engineering machinery and energy-saving control device thereof and method - Google Patents
Engineering machinery and energy-saving control device thereof and method Download PDFInfo
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- CN102828838B CN102828838B CN201210327131.1A CN201210327131A CN102828838B CN 102828838 B CN102828838 B CN 102828838B CN 201210327131 A CN201210327131 A CN 201210327131A CN 102828838 B CN102828838 B CN 102828838B
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Abstract
The invention discloses a kind of engineering machinery, energy-saving control device and method. Wherein, energy-saving control device comprises controller and speed probe; Wherein, speed probe is arranged on the engine of this project machinery, for obtaining the tach signal of this engine; Controller is connected with speed probe, for receiving tach signal; Controller is also connected with step switch with the operating grip of this project machinery, for obtaining operating grip signal and step switch signal; Controller is also for judging according to tach signal, operating grip signal and step switch signal whether this project machinery meets engine misses condition, and in the time meeting burn-out condition, sends flame-out signal. This device judges the working condition of crane according to tach signal, operating grip signal and step switch signal, and automatically controlled engine is flame-out in the time satisfying condition, not only save the energy, and avoided non-operating personnel to enter issuable misoperation after control cabinl pulpit, improve security.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to engineering machinery, an energy-saving control device and an energy-saving control method.
Background
With the rapid development of industrial technology, the problems of energy shortage and environmental pollution are becoming more and more serious. The engineering machinery generally adopts an engine to do work to drive a hydraulic system, operators generally control various actions in the operation process, and due to the problems of construction operation intermittency, operator operation habits and the like, the engineering machinery can be in a non-operation state for a long time, and the engine is still in a working state at the moment and still consumes fuel oil. Although the engine does little work at the moment, the crane does not do any action at the moment, the fuel consumption is completely used for doing useless work, the fuel is wasted, and the emissions of harmful gases and the like of the engine pollute the environment and do not meet the requirements of energy conservation and environmental protection. In addition, the operator may forget to shut down in an emergency, and when the engine is not shut down for a long time, a malfunction may occur if a non-operator enters the control cabin, which may cause a safety hazard.
Disclosure of Invention
In view of the above, the invention provides an engineering machine, an energy-saving control device and an energy-saving control method, so as to solve the problems of energy waste, environmental pollution and large potential safety hazard caused by the fact that the existing engineering machine cannot automatically extinguish.
In one aspect, the invention provides an energy-saving control device for engineering machinery, which comprises a controller and a rotating speed sensor, wherein the controller is used for controlling the rotating speed of the controller; the system comprises a rotating speed sensor, a control unit and a control unit, wherein the rotating speed sensor is arranged on an engine of the engineering machinery and used for acquiring a rotating speed signal of the engine; the controller is connected with the rotating speed sensor and used for receiving a rotating speed signal; the controller is also connected with an operating handle and an action switch of the engineering machinery and used for acquiring an operating handle signal and an action switch signal; the controller is also used for judging whether the engineering machinery meets the flameout condition of the engine or not according to the rotating speed signal, the operating handle signal and the action switch signal, and sending a flameout signal when the flameout condition is met.
Further, in the control device, the misfire condition is: the operating handle signal and the motion switch signal are both zero, and the rotation speed signal is not zero, and the state lasts for a first set time.
Further, the control device further comprises an input/output unit; the controller is also used for sending a flameout confirmation signal to the input and output unit when the engineering machinery meets the flameout confirmation condition, and determining whether to send the flameout signal according to the information feedback condition of the input and output unit; the flameout confirmation conditions were: the operating handle signal and the action switch signal are both zero, and the rotating speed signal is not zero, and the state is maintained for the first set time.
Further, in the above control apparatus, the conditions under which the controller sends the stall signal are: in a second set time, the controller receives a feedback signal which is sent by the input and output unit and confirms flameout; or when the time is longer than the second set time, the controller does not receive any feedback signal sent by the input and output unit; the conditions under which the controller does not send out the flameout signal are as follows: and in a second set time, the controller receives a non-extinguishing feedback signal sent by the input/output unit.
Further, in the control device, the input/output unit is a display screen.
Further, in the control device, a switch is connected between the controller and the input/output unit.
The device judges the working condition of the crane according to the rotating speed signal, the operating handle signal and the action switch signal, and automatically controls the engine to be flameout when the conditions are met, so that the energy is saved, the possible misoperation caused by non-operating personnel entering the control cabin is avoided, and the safety is improved.
On the other hand, the invention also provides engineering machinery, and any one of the energy-saving control devices is arranged on the engineering machinery.
Further, in the above construction machine, the construction machine is a crane.
Since the energy-saving control device has the above effects, the engineering machine with the energy-saving control device also has corresponding technical effects.
In another aspect, the present invention further provides an energy saving control method for an engineering machine, including: a rotating speed obtaining step of obtaining the rotating speed of an engine of the engineering machinery; an operation signal acquisition step of acquiring an operation handle signal and an action switch signal of the engineering machinery; judging whether the engineering machinery meets flameout conditions or not according to the engine rotating speed, the operating handle signal and the action switch signal; a flameout control step of controlling an engine of the engineering machinery to flameout if a flameout condition is met; if the flameout condition is not satisfied, no operation is performed on the engine.
Further, in the control method, the determining step specifically includes: and if the rotating speed of the engine is greater than zero, the operating handle signal and the action switch signal are both equal to zero, and the state lasts for a first set time, judging that the engine meets a flameout condition.
Further, in the control method, the determining step includes: a first substep of sending a signal for confirming whether to shut down to the input/output unit if the engine speed is greater than zero, the operating handle signal and the operation switch signal are both equal to zero, and the state lasts for a first set time; a second substep, if a signal for determining flameout fed back by the input and output unit is received within a second set time, or no signal fed back by the input and output unit is received within a time period greater than the second set time, judging that the engine meets flameout conditions; and if the non-flameout signal fed back by the input and output unit is received within the second set time, judging that the engine does not meet the flameout condition.
The method judges the working condition of the crane according to the rotating speed signal, the operating handle signal and the action switch signal, and automatically controls the engine to stop fire when the conditions are met, thereby not only saving energy, but also avoiding the possible misoperation after non-operating personnel enter the control cabin, and improving the safety.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a first block diagram of an embodiment of an energy saving control apparatus according to the present invention;
FIG. 2 is a second block diagram of the energy-saving control apparatus according to the embodiment of the present invention;
FIG. 3 is a third block diagram of an energy-saving control apparatus according to an embodiment of the present invention;
FIG. 4 is a block diagram of the energy saving control method according to the first preferred embodiment of the present invention;
fig. 5 is a block diagram of the energy saving control method according to the second preferred embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Control device embodiment:
referring to fig. 1, a preferred embodiment of the energy saving control apparatus of the present invention is shown. The control device can be used for engineering machinery, and a crane is taken as an example to be further described below. As shown, the apparatus includes a controller 100 and a rotation speed sensor 400.
As is known in the related art, a crane is generally provided with an operating handle 200, an action switch 300, and an engine 700. The operating handle 200 is generally disposed on both sides of the cabin seat, and the boom can be controlled to be lifted and the like by operating the operating handle 200. The motion switch 300 is generally disposed on a console of the control room, and the construction machine can be controlled to perform some auxiliary work, such as connection of the sub-boom to the main boom, by manipulating the motion switch 300.
As shown in fig. 1, in the present embodiment, a rotation speed sensor 400 is mounted on an engine 700 of the working machine, and is used for acquiring a rotation speed signal of the engine 700. The controller 100 is connected to the rotation speed sensor 400 for receiving a rotation speed signal of the engine 700. The controller 100 is further connected to the operating handle 200 and the action switch 300 of the construction machine, and is configured to obtain operation signals of the operating handle 200 and the action switch 300; the controller 100 is further configured to determine whether the engineering machine meets an engine stall condition according to the rotation speed signal, the operating handle signal and the motion switch signal, and send a stall signal when the engine stall condition is met.
The working condition of the crane can be judged according to the rotating speed signal, the operating handle signal and the action switch signal, the engine is automatically controlled to be flamed out when the condition is met, energy is saved, misoperation which is possibly caused after non-operating personnel enter a control cabin is avoided, and safety is improved.
Preferably, in the above embodiment, the flameout condition is: the operation handle signal and the operation switch signal are both zero, the rotation speed signal is not zero, and the state lasts for a first set time.
As is readily understood from the above analysis, when the operation knob 200 and the motion switch 300 are simultaneously in the reset state, i.e., not in motion, the operation signals of the operation knob 200 and the motion switch 300 are simultaneously zero; at this time, the operator does not operate the crane to perform work. If the controller 100 receives the information that the rotation speed of the engine 700 is not zero, that is, the engine 700 is in the working state; if the state where the rotation speed is not zero and the operation handle 200 and the operation switch 300 are simultaneously zero continues for the first set time, the controller 100 sends an engine stall signal.
In particular operation, referring to fig. 2, engine 700 may be controlled to stall by stall actuator 600. Specifically, the flameout actuator 600 is generally disposed in an electrical control box of a control cabin of a crane, the controller 100 is connected to the flameout actuator 600, and when the flameout actuator 600 receives a flameout signal, a coil thereof is turned on, a contact is closed, and the engine 700 is controlled to be flameout. The controller 100 may also send a bus shutdown packet to the bus of the crane, and the engine 700 may automatically shut down after receiving the bus shutdown packet. Further, the controller 100 may also send a misfire signal directly to the engine module misfire input point to shut down the engine 700. It should be understood by those skilled in the art that the controller 100 may control the engine 700 to be turned off in various ways, and the present invention is not limited thereto.
In the specific operation, the first setting time may be determined according to the actual situation, which is not limited in the present invention.
The embodiment controls the engine to automatically extinguish when the crane is in a non-operation state and meets the extinguishing condition, and compared with the prior art, the energy is saved, and meanwhile, the emission of harmful gas and the pollution to the environment are also reduced. In addition, the misoperation which is possibly generated after non-operating personnel enter the control room is avoided, and the safety is improved.
Preferably, referring to fig. 3, the present embodiment may be further modified, and an input/output unit 500 is added. The controller 100 is further connected to the input and output unit 500, and the controller 100 is further configured to send a flameout confirmation signal to the input and output unit 500 when the crane meets the flameout confirmation condition, and determine whether to send the flameout signal according to the information feedback condition of the input and output unit 500. Wherein, the flameout confirmation conditions are as follows: the operating handle signal and the motion switch signal are both zero, and the rotation speed signal is not zero, and the state lasts for a first set time.
In this embodiment, when the crane satisfies the engine stall confirmation condition, the controller 100 transmits stall confirmation information to the input and output unit 500, and the input and output unit 500 receives and displays the stall confirmation information. In specific operation, the input/output unit 500 may select a touch screen or other display screen with the function, and is generally disposed on an instrument desk in a cab, so that an operator can know the information in time and make feedback. The controller 100 determines whether the construction machine satisfies a misfire condition according to the information feedback condition of the input/output unit 500, and further determines whether to send a misfire signal.
Wherein, the conditions for the controller 100 to send out the flameout signal are as follows: within a second set time, the controller 100 receives feedback information for confirming flameout sent by the input/output unit 500; alternatively, when the time is longer than the second set time, the controller 100 does not receive any feedback information transmitted by the input-output unit 500. The conditions under which the controller 100 does not issue the stall signal are: within the second set time, the controller 100 receives the feedback information of non-extinction transmitted by the input/output unit 500.
It can be seen that, within the second set time, if the operator sends feedback information agreeing to flameout, the controller 100 will send a flameout signal; if the operator sends a feedback that does not agree to misfire, the controller 100 will not send a misfire signal. At this time, the controller 100 clears the previous detection information and newly detects that the condition for transmitting the misfire confirmation information is satisfied.
In addition, if the operator still does not send feedback information when the time is longer than the second set time, the controller 100 will also send a flameout signal. In a specific operation, a delay module may be disposed in the controller 100, and when the controller 100 does not receive the feedback signal of the input/output unit within the second setting time, the controller 100 delays for a third setting time and then sends out a flameout signal.
In the specific operation, the second setting time and the third setting time may be determined according to the actual situation, which is not limited in the present invention.
In a specific operation, a switch may be provided between the controller 100 and the input/output unit 500, and whether to activate the input/output unit 500 may be determined by operating the switch.
Through the above embodiments, it can be seen that the present invention has the following advantages:
1) when the crane does not work, the engine is automatically turned off, so that the fuel consumption is reduced, and the resources are saved; meanwhile, the exhaust emission and the noise pollution are reduced, and the environmental protection requirement is met;
2) under the condition that an operator is not in the control room for a long time, potential safety hazards caused by misoperation of other personnel are avoided;
3) the control device is simple in structure and easy to realize.
Engineering machinery embodiment:
the invention also provides engineering machinery, taking a crane as an example, and any one of the energy-saving control devices is arranged on the engineering machinery. The specific implementation process of the energy-saving control device may refer to the above description, and the present invention is not described herein again.
Since the energy-saving control device has the above effects, the engineering machine with the energy-saving control device also has corresponding technical effects.
Control method embodiment
The first embodiment:
referring to fig. 4, a preferred embodiment of the energy saving control method of the present invention is shown. As can be seen from the figure, the method comprises: a rotation speed acquisition step S1 of acquiring an engine rotation speed of the construction machine; an operation signal acquisition step S2 of acquiring an operation handle signal and an operation switch signal of the construction machine; a judgment step S3, judging whether the engineering machinery meets the flameout condition according to the engine speed, the operating handle signal and the action switch signal; a stop control step S4 of controlling the engine of the construction machine to stop if a stop condition is satisfied; if the flameout condition is not satisfied, no operation is performed on the engine.
The working condition of the crane can be judged according to the rotating speed signal, the operating handle signal and the action switch signal, the engine is automatically controlled to be flamed out when the condition is met, energy is saved, misoperation which is possibly caused after non-operating personnel enter a control cabin is avoided, and safety is improved.
Preferably, the judging step S3 further includes: and if the rotating speed of the engine is greater than zero, the operating handle signal and the action switch signal are both equal to zero, and the state lasts for the first set time, judging that the engine meets the flameout condition.
Generally, when the operating handle and the action switch are in a reset state, namely are not in action, the operating signals of the operating handle and the action switch are zero; at this time, the operator does not operate the crane to perform work. If the rotating speed of the engine is not zero at the moment, the engine is in a working state; if the condition is satisfied for the first set time, the engine is controlled to stop.
It should be noted that: in this embodiment, the engine rotation speed signal is acquired first, and then the operation handle signal and the action switch signal are acquired, and actually, in specific implementation, the operation handle signal may be acquired first, and then the action switch signal and the rotation speed signal may be acquired.
The method automatically turns off the engine when the crane does not operate, thereby reducing fuel consumption and saving resources; meanwhile, the exhaust emission and the noise pollution are reduced, and the environmental protection requirement is met. In addition, under the condition that the operator is not in the control room for a long time, the safety trouble caused by misoperation of other personnel is avoided.
Second embodiment:
referring to fig. 5, a second preferred embodiment of the energy saving control method of the present invention is also shown.
As shown in the figure, the determining step in this embodiment further includes: a first substep of sending a signal for confirming whether to shut down to the input/output unit if the engine speed is greater than zero, the operating handle signal and the action switch signal are both equal to zero, and the state lasts for a first set time; a second substep, if a signal for determining flameout fed back by the input and output unit is received within a second set time, or no signal fed back by the input and output unit is received within a time period greater than the second set time, judging that the engine meets flameout conditions; and if the non-flameout signal fed back by the input and output unit is received within the second set time, judging that the engine does not meet the flameout condition.
The present embodiment adds a misfire condition confirmation step to the first embodiment. Specifically, in the construction machine, it has been satisfied that: when the engine speed is greater than zero, the operating handle signal and the action switch signal are both equal to zero, and the state lasts for the first set time, flameout confirmation information is sent to the input and output unit for safety. And whether flameout occurs or not is confirmed according to the information feedback condition of the input and output unit. Other parts of this embodiment are the same as those of the first embodiment, and are not described again.
This embodiment is further described below with reference to fig. 5:
when the controller detects that the rotating speed of the engine is not zero and the operating handle and the action switch have no operating signals, the controller starts timing. And if the rotating speed of the engine changes in the timing process or an action signal of the operating handle or the action switch is detected, the timing returns to zero. If the timing process is not interrupted, when the accumulated timing time reaches a first set value, the controller can control the input and output unit of the control cabin to display a flameout prompt interface, and when the display reaches a second set time and the controller does not receive any feedback information if an operator is not in the control cabin, the controller can automatically control the engine to flameout. If the operator is in the control room and selects to extinguish the engine within the second set time through the display screen, the controller controls the engine to extinguish; and if the operator selects not to extinguish the engine through the display screen within the second set time, the controller does not control the engine to extinguish, clears the accumulated time, and re-detects the flameout condition.
In conclusion, the method can not only save unnecessary fuel consumption and save resources, but also reduce the emission of harmful gases and the noise pollution to the environment. In addition, the method is not only suitable for engineering machinery, but also suitable for other mechanical equipment with intermittent working characteristics, and has wide application range.
Since the control method is similar in principle to the control device described above, the relevant points may be referred to each other.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. An energy-saving control device for construction machinery, comprising a controller (100) and a rotation speed sensor (400); wherein,
the rotating speed sensor (400) is arranged on an engine of the engineering machinery and used for acquiring a rotating speed signal of the engine;
the controller (100) is connected with the rotating speed sensor (400) and is used for receiving the rotating speed signal;
the controller (100) is also connected with an operating handle (200) and an action switch (300) of the engineering machinery and is used for acquiring signals of the operating handle (200) and signals of the action switch (300);
the controller (100) is also used for judging whether the engineering machinery meets the engine flameout condition according to the rotating speed signal, the operating handle signal and the action switch signal and sending a flameout signal when the flameout condition is met;
the flameout conditions are as follows: the operating handle signal and the action switch signal are both zero, the rotating speed signal is not zero, and the state lasts for a first set time;
the energy-saving control device for the engineering machinery further comprises an input/output unit (500); wherein,
the controller (100) is further connected with the input and output unit (500), and the controller (100) is further used for sending a flameout confirmation signal to the input and output unit (500) when the construction machine meets the flameout confirmation condition, and determining whether to send the flameout signal according to the information feedback condition of the input and output unit (500);
the flameout confirmation conditions are as follows: the operating handle signal and the action switch signal are both zero, the rotating speed signal is not zero, and the state is kept for a first set time;
the controller (100) sends out flameout signals under the following conditions: within a second set time, the controller (100) receives a feedback signal which is sent by the input/output unit (500) and confirms flameout; or, when the time is longer than a second set time, the controller (100) does not receive any feedback signal sent by the input/output unit (500);
the controller (100) does not send out the flameout signal condition: and in a second set time, the controller (100) receives a non-flameout feedback signal sent by the input/output unit (500).
2. The energy-saving control device for construction machinery according to claim 1, wherein the input/output unit (500) is a display screen.
3. The energy-saving control device for construction machinery according to claim 1, wherein a switch is connected between the controller (100) and the input/output unit (500).
4. A construction machine characterized by being provided with the energy saving control apparatus according to any one of claims 1 to 3.
5. An energy-saving control method for a construction machine, comprising:
a rotating speed obtaining step of obtaining the rotating speed of an engine of the engineering machinery;
an operation signal acquisition step of acquiring an operation handle signal and an action switch signal of the engineering machinery;
judging whether the engineering machinery meets flameout conditions or not according to the engine rotating speed, the operating handle signal and the action switch signal;
a flameout control step of controlling an engine of the engineering machinery to flameout if a flameout condition is met; if the flameout condition is not met, the engine is not operated;
the judging step specifically comprises the following steps:
if the rotating speed of the engine is greater than zero, the operating handle signal and the action switch signal are both equal to zero, and the state lasts for a first set time, judging that the engine meets a flameout condition;
the judging step comprises the following steps:
a first substep of sending a signal for confirming whether to shut down to the input/output unit if the engine speed is greater than zero, the operating handle signal and the operation switch signal are both equal to zero, and the state lasts for a first set time;
a second substep, if a signal for determining flameout fed back by the input and output unit is received within a second set time, or no signal fed back by the input and output unit is received within a time period greater than the second set time, judging that the engine meets flameout conditions; and if the non-flameout signal fed back by the input and output unit is received within the second set time, judging that the engine does not meet the flameout condition.
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| CN201210327131.1A CN102828838B (en) | 2012-09-06 | 2012-09-06 | Engineering machinery and energy-saving control device thereof and method |
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| CN108516466A (en) * | 2018-06-14 | 2018-09-11 | 徐州重型机械有限公司 | Crane control method and crane |
| CN110700951B (en) * | 2019-09-18 | 2020-09-15 | 中联重科股份有限公司 | Flameout control system, emergency stop alarm method and flameout control method |
| CN114856847B (en) * | 2022-04-20 | 2023-07-18 | 中联重科股份有限公司 | Control method for engineering equipment engine, processor and engineering equipment |
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| CN1445443A (en) * | 2003-01-22 | 2003-10-01 | 姚天锡 | Oil-saving method and device for cars |
| JP2007326491A (en) * | 2006-06-08 | 2007-12-20 | Toyota Motor Corp | Vehicular input device |
| US20090192700A1 (en) * | 2008-01-30 | 2009-07-30 | Caterpillar Inc. | Method and system for starting system prognosis and diagnosis |
| CN101492044A (en) * | 2009-02-24 | 2009-07-29 | 江苏大学 | Device and method for judging vehicle effective idling-stopping condition |
| CN202170831U (en) * | 2011-06-07 | 2012-03-21 | 三阳工业股份有限公司 | Automatic idling stop system for engine |
| CN202542755U (en) * | 2011-11-18 | 2012-11-21 | 水利部杭州机械设计研究所 | Black box for monitoring safety of gantry crane |
| CN102606322A (en) * | 2012-03-28 | 2012-07-25 | 中联重科股份有限公司 | Engine energy-saving control method, energy-saving controller, system and engineering machinery |
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